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Diffstat (limited to '')
| -rw-r--r-- | third_party/sipcc/sdp_attr_access.c | 6426 |
1 files changed, 6426 insertions, 0 deletions
diff --git a/third_party/sipcc/sdp_attr_access.c b/third_party/sipcc/sdp_attr_access.c new file mode 100644 index 0000000000..b3efa3e6b6 --- /dev/null +++ b/third_party/sipcc/sdp_attr_access.c @@ -0,0 +1,6426 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "sdp_os_defs.h" +#include "sipcc_sdp.h" +#include "sdp_private.h" + +#include "sdp_log.h" + +static const char* logTag = "sdp_attr_access"; + +/* Attribute access routines are all defined by the following parameters. + * + * sdp_p The SDP handle returned by sdp_init_description. + * level The level the attribute is defined. Can be either + * SDP_SESSION_LEVEL or 0-n specifying a media line level. + * inst_num The instance number of the attribute. Multiple instances + * of a particular attribute may exist at each level and so + * the inst_num determines the particular attribute at that + * level that should be accessed. Note that this is the + * instance number of the specified type of attribute, not the + * overall attribute number at the level. Also note that the + * instance number is 1-based. For example: + * v=0 + * o=mhandley 2890844526 2890842807 IN IP4 126.16.64.4 + * s=SDP Seminar + * c=IN IP4 10.1.0.2 + * t=0 0 + * m=audio 1234 RTP/AVP 0 101 102 + * a=foo 1 + * a=foo 2 + * a=bar 1 # This is instance 1 of attribute bar. + * a=foo 3 # This is instance 3 of attribute foo. + * cap_num Almost all of the attributes may be defined as X-cpar + * parameters (with the exception of X-sqn, X-cap, and X-cpar). + * If the cap_num is set to zero, then the attribute is not + * an X-cpar parameter attribute. If the cap_num is any other + * value, it specifies the capability number that the X-cpar + * attribute is specified for. + */ + +/* Attribute handling: + * + * There are two basic types of attributes handled by the SDP library, + * those defined by a= token lines, and those embedded with a=X-cpar lines. + * The handling for each of these is described here. + * + * Simple (non X-cpar attributes): + * + * Attributes not embedded in a=X-cpar lines are referenced by level and + * instance number. For these attributes the capability number is always + * set to zero. + * + * An application will typically process these attributes in one of two ways. + * With the first method, the application can determine the total number + * of attributes defined at a given level and process them one at a time. + * For each attribute, the application will query the library to find out + * what type of attribute it is and which instance within that type. The + * application can then process this particular attribute referencing it + * by level and instance number. + * + * A second method of processing attributes is for applications to determine + * each type of attribute they are interested in, query the SDP library to + * find out how many of that type of attribute exist at a given level, and + * process each one at a time. + * + * X-cpar attribute processing: + * + * X-cpar attributes can contain embedded attributes. They are associated + * with X-cap attribute lines. An example of X-cap and X-cpar attributes + * found in an SDP is as follows: + * + * v=0 + * o=- 25678 753849 IN IP4 128.96.41.1 + * s=- + * t=0 0 + * c=IN IP4 10.1.0.2 + * m=audio 3456 RTP/AVP 18 96 + * a=rtpmap:96 telephone-event/8000 + * a=fmtp:96 0-15,32-35 + * a=X-sqn: 0 + * a=X-cap: 1 audio RTP/AVP 0 18 96 97 + * a=X-cpar: a=fmtp:96 0-16,32-35 + * a=X-cpar: a=rtpmap:97 X-NSE/8000 + * a=X-cpar: a=fmtp:97 195-197 + * a=X-cap: 5 image udptl t38 + * a=X-cap: 6 application udp X-tmr + * a=X-cap: 7 audio RTP/AVP 100 101 + * a=X-cpar: a=rtpmap:100 g.711/8000 + * a=X-cpar: a=rtpmap:101 g.729/8000 + * + * X-cap attributes can be defined at the SESSION_LEVEL or any media level. + * An X-cap attr is defined by the level and instance number just like + * other attributes. In the example above, X-cap attrs are defined at + * media level 1 and there are four instances at that level. + * + * The X-cpar attributes can also be referenced by level and instance number. + * However, the embedded attribute within an X-cpar attribute must be + * referenced by level, instance number, and capability number. This is + * because the X-cpar attribute is associated with a particular X-cap/ + * capability. + * For all attributes that are not embedded within an X-cpar attribute, the + * cap_num should be referenced as zero. But for X-cpar attributes, the + * cap_num is specified to be one of the capability numbers of the previous + * X-cap line. The number of capabilities specified in an X-cap line is + * equal to the number of payloads. Thus, in this example, the first X-cap + * attr instance specifies capabilities 1-4, the second specifies capability + * 5, the third capability 6, and the fourth capabilities 7-8. + * + * X-cpar attributes can be processed with methods similar to the two + * previously mentioned. For each X-cap attribute, the application can + * use one of two methods to process the X-cpar attributes. First, it + * can query the total number of X-cpar attributes associated with a + * given X-cap attribute. The X-cap attribute is here defined by a level + * and a capability number. In the example above, the total number of + * attributes defined is as follows: + * level 1, cap_num 1 - total attrs: 3 + * level 1, cap_num 5 - total attrs: 0 + * level 1, cap_num 6 - total attrs: 0 + * level 1, cap_num 7 - total attrs: 2 + * + * Note that if the application queried the number of attributes for + * cap_num 2, 3, or 4, it would also return 3 attrs, and for cap_num + * 8 the library would return 2. + * + * Once the application determines the total number of attributes for + * that capability, it can again query the embedded attribute type and + * instance. For example, sdp_get_attr_type would return the following: + * level 1, cap_num 1, attr 1 -> attr type fmtp, instance 1 + * level 1, cap_num 1, attr 2 -> attr type rtpmap, instance 1 + * level 1, cap_num 1, attr 3 -> attr type fmtp, instance 2 + * level 1, cap_num 7, attr 1 -> attr type rtpmap, instance 1 + * level 1, cap_num 7, attr 2 -> attr type rtpmap, instance 2 + * + * The individual embedded attributes can then be accessed by level, + * cap_num, and instance number. + * + * With the second method for handling X-cpar attributes, the application + * determines the types of attributes it is interested in. It can then + * query the SDP library to determine the number of attributes of that + * type found for that level and cap_num, and then process each one at + * a time. e.g., calling sdp_attr_num_instances would give: + * level 1, cap_num 1, attr_type fmtp -> two instances + * level 1, cap_num 1, attr_type rtpmap -> one instance + * level 1, cap_num 7, attr_type fmtp -> zero instances + * level 1, cap_num 7, attr_type rtpmap -> two instances + */ + + +/* Function: sdp_add_new_attr + * Description: Add a new attribute of the specified type at the given + * level and capability level or base attribute if cap_num + * is zero. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * attr_type The type of attribute to add. + * inst_num Pointer to a uint16_t in which to return the instance + * number of the newly added attribute. + * Returns: SDP_SUCCESS Attribute was added successfully. + * SDP_NO_RESOURCE No memory avail for new attribute. + * SDP_INVALID_PARAMETER Specified media line is not defined. + */ +sdp_result_e sdp_add_new_attr (sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + sdp_attr_e attr_type, uint16_t *inst_num) +{ + uint16_t i; + sdp_mca_t *mca_p; + sdp_mca_t *cap_p; + sdp_attr_t *attr_p; + sdp_attr_t *new_attr_p; + sdp_attr_t *prev_attr_p=NULL; + sdp_fmtp_t *fmtp_p; + sdp_comediadir_t *comediadir_p; + + *inst_num = 0; + + if ((cap_num != 0) && + ((attr_type == SDP_ATTR_X_CAP) || (attr_type == SDP_ATTR_X_CPAR) || + (attr_type == SDP_ATTR_X_SQN) || (attr_type == SDP_ATTR_CDSC) || + (attr_type == SDP_ATTR_CPAR) || (attr_type == SDP_ATTR_SQN))) { + if (sdp_p->debug_flag[SDP_DEBUG_WARNINGS]) { + SDPLogDebug(logTag, "%s Warning: Invalid attribute type for X-cpar/cdsc " + "parameter.", sdp_p->debug_str); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } + + /* Some attributes are valid only under media level */ + if (level == SDP_SESSION_LEVEL) { + switch (attr_type) { + case SDP_ATTR_RTCP: + case SDP_ATTR_LABEL: + return (SDP_INVALID_MEDIA_LEVEL); + + default: + break; + } + } + + new_attr_p = (sdp_attr_t *)SDP_MALLOC(sizeof(sdp_attr_t)); + if (new_attr_p == NULL) { + sdp_p->conf_p->num_no_resource++; + return (SDP_NO_RESOURCE); + } + + new_attr_p->type = attr_type; + new_attr_p->next_p = NULL; + + /* Initialize the new attribute structure */ + if ((new_attr_p->type == SDP_ATTR_X_CAP) || + (new_attr_p->type == SDP_ATTR_CDSC)) { + new_attr_p->attr.cap_p = (sdp_mca_t *)SDP_MALLOC(sizeof(sdp_mca_t)); + if (new_attr_p->attr.cap_p == NULL) { + sdp_free_attr(new_attr_p); + sdp_p->conf_p->num_no_resource++; + return (SDP_NO_RESOURCE); + } + } else if (new_attr_p->type == SDP_ATTR_FMTP) { + fmtp_p = &(new_attr_p->attr.fmtp); + fmtp_p->fmtp_format = SDP_FMTP_UNKNOWN_TYPE; + // set to invalid value + fmtp_p->packetization_mode = SDP_INVALID_PACKETIZATION_MODE_VALUE; + fmtp_p->level_asymmetry_allowed = SDP_INVALID_LEVEL_ASYMMETRY_ALLOWED_VALUE; + fmtp_p->annexb_required = FALSE; + fmtp_p->annexa_required = FALSE; + fmtp_p->maxval = 0; + fmtp_p->bitrate = 0; + fmtp_p->cif = 0; + fmtp_p->qcif = 0; + fmtp_p->profile = SDP_INVALID_VALUE; + fmtp_p->level = SDP_INVALID_VALUE; + fmtp_p->parameter_add = SDP_FMTP_UNUSED; + fmtp_p->usedtx = SDP_FMTP_UNUSED; + fmtp_p->stereo = SDP_FMTP_UNUSED; + fmtp_p->useinbandfec = SDP_FMTP_UNUSED; + fmtp_p->cbr = SDP_FMTP_UNUSED; + for (i=0; i < SDP_NE_NUM_BMAP_WORDS; i++) { + fmtp_p->bmap[i] = 0; + } + } else if ((new_attr_p->type == SDP_ATTR_RTPMAP) || + (new_attr_p->type == SDP_ATTR_SPRTMAP)) { + new_attr_p->attr.transport_map.num_chan = 1; + } else if (new_attr_p->type == SDP_ATTR_DIRECTION) { + comediadir_p = &(new_attr_p->attr.comediadir); + comediadir_p->role = SDP_MEDIADIR_ROLE_PASSIVE; + comediadir_p->conn_info_present = FALSE; + } else if (new_attr_p->type == SDP_ATTR_MPTIME) { + sdp_mptime_t *mptime = &(new_attr_p->attr.mptime); + mptime->num_intervals = 0; + } + + if (cap_num == 0) { + /* Add a new attribute. */ + if (level == SDP_SESSION_LEVEL) { + if (sdp_p->sess_attrs_p == NULL) { + sdp_p->sess_attrs_p = new_attr_p; + } else { + for (attr_p = sdp_p->sess_attrs_p; + attr_p != NULL; + prev_attr_p = attr_p, attr_p = attr_p->next_p) { + /* Count the num instances of this type. */ + if (attr_p->type == attr_type) { + (*inst_num)++; + } + } + prev_attr_p->next_p = new_attr_p; + } + } else { + mca_p = sdp_find_media_level(sdp_p, level); + if (mca_p == NULL) { + sdp_free_attr(new_attr_p); + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } + if (mca_p->media_attrs_p == NULL) { + mca_p->media_attrs_p = new_attr_p; + } else { + for (attr_p = mca_p->media_attrs_p; + attr_p != NULL; + prev_attr_p = attr_p, attr_p = attr_p->next_p) { + /* Count the num instances of this type. */ + if (attr_p->type == attr_type) { + (*inst_num)++; + } + } + prev_attr_p->next_p = new_attr_p; + } + } + } else { + /* Add a new capability attribute - find the capability attr. */ + attr_p = sdp_find_capability(sdp_p, level, cap_num); + if (attr_p == NULL) { + sdp_free_attr(new_attr_p); + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } + cap_p = attr_p->attr.cap_p; + if (cap_p->media_attrs_p == NULL) { + cap_p->media_attrs_p = new_attr_p; + } else { + for (attr_p = cap_p->media_attrs_p; + attr_p != NULL; + prev_attr_p = attr_p, attr_p = attr_p->next_p) { + /* Count the num instances of this type. */ + if (attr_p->type == attr_type) { + (*inst_num)++; + } + } + prev_attr_p->next_p = new_attr_p; + } + } + + /* Increment the instance num for the attr just added. */ + (*inst_num)++; + return (SDP_SUCCESS); +} + +/* Function: sdp_attr_num_instances + * Description: Get the number of attributes of the specified type at + * the given level and capability level. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * attr_type The type of attribute to add. + * num_attr_inst Pointer to a uint16_t in which to return the + * number of attributes. + * Returns: SDP_SUCCESS Attribute was added successfully. + * SDP_INVALID_PARAMETER Specified media line is not defined. + */ +sdp_result_e sdp_attr_num_instances (sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + sdp_attr_e attr_type, uint16_t *num_attr_inst) +{ + sdp_attr_t *attr_p; + sdp_result_e rc; + static char fname[] = "attr_num_instances"; + + *num_attr_inst = 0; + + rc = sdp_find_attr_list(sdp_p, level, cap_num, &attr_p, fname); + if (rc == SDP_SUCCESS) { + /* Found the attr list. Count the number of attrs of the given + * type at this level. */ + for (; attr_p != NULL; attr_p = attr_p->next_p) { + if (attr_p->type == attr_type) { + (*num_attr_inst)++; + } + } + + } + + return (rc); +} + +/* Forward declaration for use in sdp_free_attr */ +static boolean sdp_attr_is_long_string(sdp_attr_e attr_type); + + +/* Internal routine to free the memory associated with an attribute. + * Certain attributes allocate additional memory. Free this and then + * free the attribute itself. + * Note that this routine may be called at any point (i.e., may be + * called due to a failure case) and so the additional memory + * associated with an attribute may or may not have been already + * allocated. This routine should check this carefully. + */ +void sdp_free_attr (sdp_attr_t *attr_p) +{ + sdp_mca_t *cap_p; + sdp_attr_t *cpar_p; + sdp_attr_t *next_cpar_p; + int i; + + /* If this is an X-cap/cdsc attr, free the cap_p structure and + * all X-cpar/cpar attributes. */ + if ((attr_p->type == SDP_ATTR_X_CAP) || + (attr_p->type == SDP_ATTR_CDSC)) { + cap_p = attr_p->attr.cap_p; + if (cap_p != NULL) { + for (cpar_p = cap_p->media_attrs_p; cpar_p != NULL;) { + next_cpar_p = cpar_p->next_p; + sdp_free_attr(cpar_p); + cpar_p = next_cpar_p; + } + SDP_FREE(cap_p); + } + } else if ((attr_p->type == SDP_ATTR_SDESCRIPTIONS) || + (attr_p->type == SDP_ATTR_SRTP_CONTEXT)) { + SDP_FREE(attr_p->attr.srtp_context.session_parameters); + } else if (sdp_attr_is_long_string(attr_p->type)) { + SDP_FREE(attr_p->attr.stringp); + } + + if (attr_p->type == SDP_ATTR_GROUP) { + for (i = 0; i < attr_p->attr.stream_data.num_group_id; i++) { + SDP_FREE(attr_p->attr.stream_data.group_ids[i]); + } + } else if (attr_p->type == SDP_ATTR_MSID_SEMANTIC) { + for (i = 0; i < SDP_MAX_MEDIA_STREAMS; ++i) { + SDP_FREE(attr_p->attr.msid_semantic.msids[i]); + } + } + + /* Now free the actual attribute memory. */ + SDP_FREE(attr_p); + +} + + +/* Function: sdp_find_attr_list + * Description: Find the attribute list for the specified level and cap_num. + * Note: This is not an API for the application but an internal + * routine used by the SDP library. + * Parameters: sdp_p Pointer to the SDP to search. + * level The level to check for the attribute list. + * cap_num The capability number associated with the + * attribute list. If none, should be zero. + * attr_p Pointer to the attr list pointer. Will be + * filled in on return if successful. + * fname String function name calling this routine. + * Use for printing debug. + * Returns: SDP_SUCCESS + * SDP_INVALID_MEDIA_LEVEL + * SDP_INVALID_CAPABILITY + * SDP_FAILURE + */ +sdp_result_e sdp_find_attr_list (sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + sdp_attr_t **attr_p, char *fname) +{ + sdp_mca_t *mca_p; + sdp_mca_t *cap_p; + sdp_attr_t *cap_attr_p; + + /* Initialize the attr pointer. */ + *attr_p = NULL; + + if (cap_num == 0) { + /* Find attribute list at the specified level. */ + if (level == SDP_SESSION_LEVEL) { + *attr_p = sdp_p->sess_attrs_p; + } else { + mca_p = sdp_find_media_level(sdp_p, level); + if (mca_p == NULL) { + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } + *attr_p = mca_p->media_attrs_p; + } + } else { + /* Find the attr list for the capability specified. */ + cap_attr_p = sdp_find_capability(sdp_p, level, cap_num); + if (cap_attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s %s, invalid capability %u at " + "level %u specified.", sdp_p->debug_str, fname, + (unsigned)cap_num, (unsigned)level); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_CAPABILITY); + } + cap_p = cap_attr_p->attr.cap_p; + *attr_p = cap_p->media_attrs_p; + } + + return (SDP_SUCCESS); +} + +/* Find fmtp inst_num with correct payload value or -1 for failure */ +int sdp_find_fmtp_inst (sdp_t *sdp_p, uint16_t level, uint16_t payload_num) +{ + uint16_t attr_count=0; + sdp_mca_t *mca_p; + sdp_attr_t *attr_p; + + /* Attr is at a media level */ + mca_p = sdp_find_media_level(sdp_p, level); + if (mca_p == NULL) { + return (-1); + } + for (attr_p = mca_p->media_attrs_p; attr_p != NULL; + attr_p = attr_p->next_p) { + if (attr_p->type == SDP_ATTR_FMTP) { + attr_count++; + if (attr_p->attr.fmtp.payload_num == payload_num) { + return (attr_count); + } + } + } + + return (-1); + +} + +/* Function: sdp_find_attr + * Description: Find the specified attribute in an SDP structure. + * Note: This is not an API for the application but an internal + * routine used by the SDP library. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * attr_type The type of attribute to find. + * inst_num The instance num of the attribute to find. + * Range should be (1 - max num insts of this + * particular type of attribute at this level). + * Returns: Pointer to the attribute or NULL if not found. + */ +sdp_attr_t *sdp_find_attr (sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + sdp_attr_e attr_type, uint16_t inst_num) +{ + uint16_t attr_count=0; + sdp_mca_t *mca_p; + sdp_mca_t *cap_p; + sdp_attr_t *attr_p; + + if (inst_num < 1) { + return (NULL); + } + + if (cap_num == 0) { + if (level == SDP_SESSION_LEVEL) { + for (attr_p = sdp_p->sess_attrs_p; attr_p != NULL; + attr_p = attr_p->next_p) { + if (attr_p->type == attr_type) { + attr_count++; + if (attr_count == inst_num) { + return (attr_p); + } + } + } + } else { /* Attr is at a media level */ + mca_p = sdp_find_media_level(sdp_p, level); + if (mca_p == NULL) { + return (NULL); + } + for (attr_p = mca_p->media_attrs_p; attr_p != NULL; + attr_p = attr_p->next_p) { + if (attr_p->type == attr_type) { + attr_count++; + if (attr_count == inst_num) { + return (attr_p); + } + } + } + } /* Attr is at a media level */ + } else { + /* Attr is a capability X-cpar/cpar attribute. */ + attr_p = sdp_find_capability(sdp_p, level, cap_num); + if (attr_p == NULL) { + return (NULL); + } + cap_p = attr_p->attr.cap_p; + /* Now find the specific attribute. */ + for (attr_p = cap_p->media_attrs_p; attr_p != NULL; + attr_p = attr_p->next_p) { + if (attr_p->type == attr_type) { + attr_count++; + if (attr_count == inst_num) { + return (attr_p); + } + } + } + } + + return (NULL); +} + +/* Function: sdp_find_capability + * Description: Find the specified capability attribute in an SDP structure. + * Note: This is not an API for the application but an internal + * routine used by the SDP library. + * Parameters: sdp_p The SDP handle. + * level The level to check for the capability. + * cap_num The capability number to locate. + * Returns: Pointer to the capability attribute or NULL if not found. + */ +sdp_attr_t *sdp_find_capability (sdp_t *sdp_p, uint16_t level, uint8_t cap_num) +{ + uint8_t cur_cap_num=0; + sdp_mca_t *mca_p; + sdp_mca_t *cap_p; + sdp_attr_t *attr_p; + + if (level == SDP_SESSION_LEVEL) { + for (attr_p = sdp_p->sess_attrs_p; attr_p != NULL; + attr_p = attr_p->next_p) { + if ((attr_p->type == SDP_ATTR_X_CAP) || + (attr_p->type == SDP_ATTR_CDSC)) { + cap_p = attr_p->attr.cap_p; + cur_cap_num += cap_p->num_payloads; + if (cap_num <= cur_cap_num) { + /* This is the right capability */ + return (attr_p); + } + } + } + } else { /* Capability is at a media level */ + mca_p = sdp_find_media_level(sdp_p, level); + if (mca_p == NULL) { + return (NULL); + } + for (attr_p = mca_p->media_attrs_p; attr_p != NULL; + attr_p = attr_p->next_p) { + if ((attr_p->type == SDP_ATTR_X_CAP) || + (attr_p->type == SDP_ATTR_CDSC)) { + cap_p = attr_p->attr.cap_p; + cur_cap_num += cap_p->num_payloads; + if (cap_num <= cur_cap_num) { + /* This is the right capability */ + return (attr_p); + } + } + } + } + + /* We didn't find the specified capability. */ + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s Unable to find specified capability (level %u, " + "cap_num %u).", sdp_p->debug_str, (unsigned)level, (unsigned)cap_num); + } + sdp_p->conf_p->num_invalid_param++; + return (NULL); +} + +/* Function: sdp_attr_valid(sdp_t *sdp_p) + * Description: Returns true or false depending on whether the specified + * instance of the given attribute has been defined at the + * given level. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * attr_type The attribute type to validate. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: TRUE or FALSE. + */ +tinybool sdp_attr_valid (sdp_t *sdp_p, sdp_attr_e attr_type, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + if (sdp_find_attr(sdp_p, level, cap_num, attr_type, inst_num) == NULL) { + return (FALSE); + } else { + return (TRUE); + } +} + +/* Function: sdp_attr_line_number(sdp_t *sdp_p) + * Description: Returns the line number this attribute appears on. + * Only works if the SDP was parsed rather than created + * locally. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * attr_type The attribute type to validate. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: line number, or 0 if an error + */ +uint32_t sdp_attr_line_number (sdp_t *sdp_p, sdp_attr_e attr_type, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, attr_type, inst_num); + if (attr_p == NULL) { + return 0; + } else { + return attr_p->line_number; + } +} + +static boolean sdp_attr_is_simple_string(sdp_attr_e attr_type) { + if ((attr_type != SDP_ATTR_BEARER) && + (attr_type != SDP_ATTR_CALLED) && + (attr_type != SDP_ATTR_CONN_TYPE) && + (attr_type != SDP_ATTR_DIALED) && + (attr_type != SDP_ATTR_DIALING) && + (attr_type != SDP_ATTR_FRAMING) && + (attr_type != SDP_ATTR_MID) && + (attr_type != SDP_ATTR_X_SIDIN) && + (attr_type != SDP_ATTR_X_SIDOUT)&& + (attr_type != SDP_ATTR_X_CONFID) && + (attr_type != SDP_ATTR_LABEL) && + (attr_type != SDP_ATTR_ICE_OPTIONS) && + (attr_type != SDP_ATTR_IMAGEATTR) && + (attr_type != SDP_ATTR_SIMULCAST) && + (attr_type != SDP_ATTR_RID)) { + return FALSE; + } + return TRUE; +} + +/* Function: sdp_attr_get_simple_string + * Description: Returns a pointer to a string attribute parameter. This + * routine can only be called for attributes that have just + * one string parameter. The value is returned as a const + * ptr and so cannot be modified by the application. If the + * given attribute is not defined, NULL will be returned. + * Attributes with a simple string parameter currently include: + * bearer, called, connection_type, dialed, dialing, direction + * and framing. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * attr_type The simple string attribute type. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Pointer to the parameter value. + */ +const char *sdp_attr_get_simple_string (sdp_t *sdp_p, sdp_attr_e attr_type, + uint16_t level, uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + if (!sdp_attr_is_simple_string(attr_type)) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s Attribute type is not a simple string (%s)", + sdp_p->debug_str, sdp_get_attr_name(attr_type)); + } + sdp_p->conf_p->num_invalid_param++; + return (NULL); + } + + attr_p = sdp_find_attr(sdp_p, level, cap_num, attr_type, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s Attribute %s, level %u instance %u not found.", + sdp_p->debug_str, sdp_get_attr_name(attr_type), + (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (NULL); + } else { + return (attr_p->attr.string_val); + } +} + +static boolean sdp_attr_is_long_string(sdp_attr_e attr_type) { + return (attr_type == SDP_ATTR_IDENTITY || attr_type == SDP_ATTR_DTLS_MESSAGE); +} + +/* Identical in usage to sdp_attr_get_simple_string() */ +const char *sdp_attr_get_long_string (sdp_t *sdp_p, sdp_attr_e attr_type, + uint16_t level, uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + if (!sdp_attr_is_long_string(attr_type)) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s Attribute type is not a long string (%s)", + sdp_p->debug_str, sdp_get_attr_name(attr_type)); + } + sdp_p->conf_p->num_invalid_param++; + return (NULL); + } + + attr_p = sdp_find_attr(sdp_p, level, cap_num, attr_type, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s Attribute %s, level %u instance %u not found.", + sdp_p->debug_str, sdp_get_attr_name(attr_type), + (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (NULL); + } else { + return (attr_p->attr.stringp); + } +} + +static boolean sdp_attr_is_simple_u32(sdp_attr_e attr_type) { + if ((attr_type != SDP_ATTR_EECID) && + (attr_type != SDP_ATTR_PTIME) && + (attr_type != SDP_ATTR_MAXPTIME) && + (attr_type != SDP_ATTR_SCTPPORT) && + (attr_type != SDP_ATTR_MAXMESSAGESIZE) && + (attr_type != SDP_ATTR_T38_VERSION) && + (attr_type != SDP_ATTR_T38_MAXBITRATE) && + (attr_type != SDP_ATTR_T38_MAXBUFFER) && + (attr_type != SDP_ATTR_T38_MAXDGRAM) && + (attr_type != SDP_ATTR_X_SQN) && + (attr_type != SDP_ATTR_TC1_PAYLOAD_BYTES) && + (attr_type != SDP_ATTR_TC1_WINDOW_SIZE) && + (attr_type != SDP_ATTR_TC2_PAYLOAD_BYTES) && + (attr_type != SDP_ATTR_TC2_WINDOW_SIZE) && + (attr_type != SDP_ATTR_FRAMERATE)) { + return FALSE; + } + + return TRUE; +} + +/* Function: sdp_attr_get_simple_u32 + * Description: Returns an unsigned 32-bit attribute parameter. This + * routine can only be called for attributes that have just + * one uint32_t parameter. If the given attribute is not defined, + * zero will be returned. There is no way for the application + * to determine if zero is the actual value or the attribute + * wasn't defined, so the application must use the + * sdp_attr_valid function to determine this. + * Attributes with a simple uint32_t parameter currently include: + * eecid, ptime, T38FaxVersion, T38maxBitRate, T38FaxMaxBuffer, + * T38FaxMaxDatagram, X-sqn, TC1PayloadBytes, TC1WindowSize, + * TC2PayloadBytes, TC2WindowSize, rtcp. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * attr_type The simple uint32_t attribute type. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: uint32_t parameter value. + */ +uint32_t sdp_attr_get_simple_u32 (sdp_t *sdp_p, sdp_attr_e attr_type, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + if (!sdp_attr_is_simple_u32(attr_type)) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s Attribute type is not a simple uint32_t (%s)", + sdp_p->debug_str, sdp_get_attr_name(attr_type)); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } + + attr_p = sdp_find_attr(sdp_p, level, cap_num, attr_type, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s Attribute %s, level %u instance %u not found.", + sdp_p->debug_str, sdp_get_attr_name(attr_type), + (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + return (attr_p->attr.u32_val); + } +} + +/* Function: sdp_attr_get_simple_boolean + * Description: Returns a boolean attribute parameter. This + * routine can only be called for attributes that have just + * one boolean parameter. If the given attribute is not defined, + * FALSE will be returned. There is no way for the application + * to determine if FALSE is the actual value or the attribute + * wasn't defined, so the application must use the + * sdp_attr_valid function to determine this. + * Attributes with a simple boolean parameter currently include: + * T38FaxFillBitRemoval, T38FaxTranscodingMMR, + * T38FaxTranscodingJBIG, and TMRGwXid. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * attr_type The simple boolean attribute type. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Boolean value. + */ +tinybool sdp_attr_get_simple_boolean (sdp_t *sdp_p, sdp_attr_e attr_type, + uint16_t level, uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + if ((attr_type != SDP_ATTR_T38_FILLBITREMOVAL) && + (attr_type != SDP_ATTR_T38_TRANSCODINGMMR) && + (attr_type != SDP_ATTR_T38_TRANSCODINGJBIG) && + (attr_type != SDP_ATTR_TMRGWXID)) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s Attribute type is not a simple boolean (%s)", + sdp_p->debug_str, sdp_get_attr_name(attr_type)); + } + sdp_p->conf_p->num_invalid_param++; + return (FALSE); + } + + attr_p = sdp_find_attr(sdp_p, level, cap_num, attr_type, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s Attribute %s, level %u instance %u not found.", + sdp_p->debug_str, sdp_get_attr_name(attr_type), + (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (FALSE); + } else { + return (attr_p->attr.boolean_val); + } +} + +/* + * sdp_attr_get_maxprate + * + * This function is used by the application layer to get the packet-rate + * within the maxprate attribute. + * + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * inst_num The attribute instance number to set. + * + * Returns a pointer to a constant char array that stores the packet-rate, + * OR null if the attribute does not exist. + */ +const char* +sdp_attr_get_maxprate (sdp_t *sdp_p, uint16_t level, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_MAXPRATE, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s Attribute %s, level %u instance %u not found.", + sdp_p->debug_str, sdp_get_attr_name(SDP_ATTR_MAXPRATE), + (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (NULL); + } else { + return (attr_p->attr.string_val); + } +} + +/* Function: sdp_attr_get_t38ratemgmt + * Description: Returns the value of the t38ratemgmt attribute + * parameter specified for the given attribute. If the given + * attribute is not defined, SDP_T38_UNKNOWN_RATE is returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Ratemgmt value. + */ +sdp_t38_ratemgmt_e sdp_attr_get_t38ratemgmt (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_T38_RATEMGMT, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s t38ratemgmt attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_T38_UNKNOWN_RATE); + } else { + return (attr_p->attr.t38ratemgmt); + } +} + +/* Function: sdp_attr_get_t38udpec + * Description: Returns the value of the t38udpec attribute + * parameter specified for the given attribute. If the given + * attribute is not defined, SDP_T38_UDPEC_UNKNOWN is returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: UDP EC value. + */ +sdp_t38_udpec_e sdp_attr_get_t38udpec (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_T38_UDPEC, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s t38udpec attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_T38_UDPEC_UNKNOWN); + } else { + return (attr_p->attr.t38udpec); + } +} + +/* Function: sdp_get_media_direction + * Description: Determines the direction defined for a given level. The + * direction will be inactive, sendonly, recvonly, or sendrecv + * as determined by the last of these attributes specified at + * the given level. If none of these attributes are specified, + * the direction will be sendrecv by default. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * Returns: An SDP direction enum value. + */ +sdp_direction_e sdp_get_media_direction (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num) +{ + sdp_mca_t *mca_p; + sdp_attr_t *attr_p; + sdp_direction_e direction = SDP_DIRECTION_SENDRECV; + + if (cap_num == 0) { + /* Find the pointer to the attr list for this level. */ + if (level == SDP_SESSION_LEVEL) { + attr_p = sdp_p->sess_attrs_p; + } else { /* Attr is at a media level */ + mca_p = sdp_find_media_level(sdp_p, level); + if (mca_p == NULL) { + return (direction); + } + attr_p = mca_p->media_attrs_p; + } + + /* Scan for direction oriented attributes. Last one wins. */ + for (; attr_p != NULL; attr_p = attr_p->next_p) { + if (attr_p->type == SDP_ATTR_INACTIVE) { + direction = SDP_DIRECTION_INACTIVE; + } else if (attr_p->type == SDP_ATTR_SENDONLY) { + direction = SDP_DIRECTION_SENDONLY; + } else if (attr_p->type == SDP_ATTR_RECVONLY) { + direction = SDP_DIRECTION_RECVONLY; + } else if (attr_p->type == SDP_ATTR_SENDRECV) { + direction = SDP_DIRECTION_SENDRECV; + } + } + } else { + if (sdp_p->debug_flag[SDP_DEBUG_WARNINGS]) { + SDPLogDebug(logTag, "%s Warning: Invalid cap_num for media direction.", + sdp_p->debug_str); + } + } + + return (direction); +} + +/* Since there are four different attribute names which all have the same + * qos parameters, all of these attributes are accessed through this same + * set of APIs. To distinguish between specific attributes, the application + * must also pass the attribute type. The attribute must be one of: + * SDP_ATTR_QOS, SDP_ATTR_SECURE, SDP_ATTR_X_PC_QOS, and SDP_ATTR_X_QOS. + */ +tinybool sdp_validate_qos_attr (sdp_attr_e qos_attr) +{ + if ((qos_attr == SDP_ATTR_QOS) || + (qos_attr == SDP_ATTR_SECURE) || + (qos_attr == SDP_ATTR_X_PC_QOS) || + (qos_attr == SDP_ATTR_X_QOS) || + (qos_attr == SDP_ATTR_CURR) || + (qos_attr == SDP_ATTR_DES) || + (qos_attr == SDP_ATTR_CONF)){ + return (TRUE); + } else { + return (FALSE); + } +} + +/* Function: sdp_attr_get_qos_strength + * Description: Returns the value of the qos attribute strength + * parameter specified for the given attribute. If the given + * attribute is not defined, SDP_QOS_STRENGTH_UNKNOWN is + * returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * qos_attr The specific type of qos attribute. May be + * qos, secure, X-pc-qos, or X-qos. + * inst_num The attribute instance number to check. + * Returns: Qos strength value. + */ +sdp_qos_strength_e sdp_attr_get_qos_strength (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + if (sdp_validate_qos_attr(qos_attr) == FALSE) { + if (sdp_p->debug_flag[SDP_DEBUG_WARNINGS]) { + SDPLogDebug(logTag, "%s Warning: Invalid QOS attribute specified for" + "get qos strength.", sdp_p->debug_str); + } + return (SDP_QOS_STRENGTH_UNKNOWN); + } + attr_p = sdp_find_attr(sdp_p, level, cap_num, qos_attr, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s %s attribute, level %u instance %u " + "not found.", sdp_p->debug_str, + sdp_get_attr_name(qos_attr), (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_QOS_STRENGTH_UNKNOWN); + } else { + switch (qos_attr) { + case SDP_ATTR_QOS: + return (attr_p->attr.qos.strength); + case SDP_ATTR_DES: + return (attr_p->attr.des.strength); + default: + return SDP_QOS_STRENGTH_UNKNOWN; + + } + } +} + +/* Function: sdp_attr_get_qos_direction + * Description: Returns the value of the qos attribute direction + * parameter specified for the given attribute. If the given + * attribute is not defined, SDP_QOS_DIR_UNKNOWN is + * returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * qos_attr The specific type of qos attribute. May be + * qos, secure, X-pc-qos, or X-qos. + * inst_num The attribute instance number to check. + * Returns: Qos direction value. + */ +sdp_qos_dir_e sdp_attr_get_qos_direction (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + if (sdp_validate_qos_attr(qos_attr) == FALSE) { + if (sdp_p->debug_flag[SDP_DEBUG_WARNINGS]) { + SDPLogDebug(logTag, "%s Warning: Invalid QOS attribute specified " + "for get qos direction.", sdp_p->debug_str); + } + return (SDP_QOS_DIR_UNKNOWN); + } + attr_p = sdp_find_attr(sdp_p, level, cap_num, qos_attr, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s %s attribute, level %u instance %u " + "not found.", sdp_p->debug_str, + sdp_get_attr_name(qos_attr), (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_QOS_DIR_UNKNOWN); + } else { + switch (qos_attr) { + case SDP_ATTR_QOS: + return (attr_p->attr.qos.direction); + case SDP_ATTR_CURR: + return (attr_p->attr.curr.direction); + case SDP_ATTR_DES: + return (attr_p->attr.des.direction); + case SDP_ATTR_CONF: + return (attr_p->attr.conf.direction); + default: + return SDP_QOS_DIR_UNKNOWN; + + } + } +} + +/* Function: sdp_attr_get_qos_status_type + * Description: Returns the value of the qos attribute status_type + * parameter specified for the given attribute. If the given + * attribute is not defined, SDP_QOS_STATUS_TYPE_UNKNOWN is + * returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * qos_attr The specific type of qos attribute. May be + * qos, secure, X-pc-qos, or X-qos. + * inst_num The attribute instance number to check. + * Returns: Qos direction value. + */ +sdp_qos_status_types_e sdp_attr_get_qos_status_type (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + if (sdp_validate_qos_attr(qos_attr) == FALSE) { + if (sdp_p->debug_flag[SDP_DEBUG_WARNINGS]) { + SDPLogDebug(logTag, "%s Warning: Invalid QOS attribute specified " + "for get qos status_type.", sdp_p->debug_str); + } + return (SDP_QOS_STATUS_TYPE_UNKNOWN); + } + attr_p = sdp_find_attr(sdp_p, level, cap_num, qos_attr, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s %s attribute, level %u instance %u " + "not found.", sdp_p->debug_str, + sdp_get_attr_name(qos_attr), (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_QOS_STATUS_TYPE_UNKNOWN); + } else { + switch (qos_attr) { + case SDP_ATTR_CURR: + return (attr_p->attr.curr.status_type); + case SDP_ATTR_DES: + return (attr_p->attr.des.status_type); + case SDP_ATTR_CONF: + return (attr_p->attr.conf.status_type); + default: + return SDP_QOS_STATUS_TYPE_UNKNOWN; + + } + } +} + +/* Function: sdp_attr_get_qos_confirm + * Description: Returns the value of the qos attribute confirm + * parameter specified for the given attribute. Returns TRUE if + * the confirm parameter is specified. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * qos_attr The specific type of qos attribute. May be + * qos, secure, X-pc-qos, or X-qos. + * inst_num The attribute instance number to check. + * Returns: Boolean value. + */ +tinybool sdp_attr_get_qos_confirm (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + if (sdp_validate_qos_attr(qos_attr) == FALSE) { + if (sdp_p->debug_flag[SDP_DEBUG_WARNINGS]) { + SDPLogDebug(logTag, "%s Warning: Invalid QOS attribute specified " + "for get qos confirm.", sdp_p->debug_str); + } + return (FALSE); + } + attr_p = sdp_find_attr(sdp_p, level, cap_num, qos_attr, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s %s attribute, level %u instance %u " + "not found.", sdp_p->debug_str, + sdp_get_attr_name(qos_attr), (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (FALSE); + } else { + return (attr_p->attr.qos.confirm); + } +} + +/* Function: sdp_attr_get_curr_type + * Description: Returns the value of the curr attribute status_type + * parameter specified for the given attribute. If the given + * attribute is not defined, SDP_CURR_UNKNOWN_TYPE is + * returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * qos_attr The specific type of qos attribute. May be + * qos, secure, X-pc-qos, or X-qos. + * inst_num The attribute instance number to check. + * Returns: Curr type value. + */ +sdp_curr_type_e sdp_attr_get_curr_type (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, qos_attr, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s %s attribute, level %u instance %u " + "not found.", sdp_p->debug_str, + sdp_get_attr_name(qos_attr), (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_CURR_UNKNOWN_TYPE); + } else { + return (attr_p->attr.curr.type); + } +} + +/* Function: sdp_attr_get_des_type + * Description: Returns the value of the des attribute status_type + * parameter specified for the given attribute. If the given + * attribute is not defined, SDP_DES_UNKNOWN_TYPE is + * returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * qos_attr The specific type of qos attribute. May be + * qos, secure, X-pc-qos, or X-qos. + * inst_num The attribute instance number to check. + * Returns: DES type value. + */ +sdp_des_type_e sdp_attr_get_des_type (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, qos_attr, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s %s attribute, level %u instance %u " + "not found.", sdp_p->debug_str, + sdp_get_attr_name(qos_attr), (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_DES_UNKNOWN_TYPE); + } else { + return (attr_p->attr.des.type); + } +} + +/* Function: sdp_attr_get_conf_type + * Description: Returns the value of the des attribute status_type + * parameter specified for the given attribute. If the given + * attribute is not defined, SDP_CONF_UNKNOWN_TYPE is + * returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * qos_attr The specific type of qos attribute. May be + * qos, secure, X-pc-qos, or X-qos. + * inst_num The attribute instance number to check. + * Returns: CONF type value. + */ +sdp_conf_type_e sdp_attr_get_conf_type (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, qos_attr, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s %s attribute, level %u instance %u " + "not found.", sdp_p->debug_str, + sdp_get_attr_name(qos_attr), (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_CONF_UNKNOWN_TYPE); + } else { + return (attr_p->attr.conf.type); + } +} + +/* Function: sdp_attr_get_subnet_nettype + * Description: Returns the value of the subnet attribute network type + * parameter specified for the given attribute. If the given + * attribute is not defined, SDP_NT_INVALID is returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Nettype value. + */ +sdp_nettype_e sdp_attr_get_subnet_nettype (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SUBNET, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s Subnet attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_NT_INVALID); + } else { + return (attr_p->attr.subnet.nettype); + } +} + +/* Function: sdp_attr_get_subnet_addrtype + * Description: Returns the value of the subnet attribute address type + * parameter specified for the given attribute. If the given + * attribute is not defined, SDP_AT_INVALID is returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Addrtype value. + */ +sdp_addrtype_e sdp_attr_get_subnet_addrtype (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SUBNET, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s Subnet attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_AT_INVALID); + } else { + return (attr_p->attr.subnet.addrtype); + } +} + +/* Function: sdp_attr_get_subnet_addr + * Description: Returns the value of the subnet attribute address + * parameter specified for the given attribute. If the given + * attribute is not defined, NULL is returned. Value is + * returned as a const ptr and so cannot be modified by the + * application. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Pointer to address or NULL. + */ +const char *sdp_attr_get_subnet_addr (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SUBNET, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s Subnet attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (NULL); + } else { + return (attr_p->attr.subnet.addr); + } +} + +/* Function: sdp_attr_get_subnet_prefix + * Description: Returns the value of the subnet attribute prefix + * parameter specified for the given attribute. If the given + * attribute is not defined, SDP_INVALID_PARAM is returned. + * Note that this is value is defined to be (-2) and is + * different from the return code SDP_INVALID_PARAMETER. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Prefix value or SDP_INVALID_PARAM. + */ +int32_t sdp_attr_get_subnet_prefix (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SUBNET, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s Subnet attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.subnet.prefix); + } +} + +/* Function: sdp_attr_rtpmap_payload_valid + * Description: Returns true or false depending on whether an rtpmap + * attribute was specified with the given payload value + * at the given level. If it was, the instance number of + * that attribute is returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number of the attribute + * found is returned via this param. + * Returns: TRUE or FALSE. + */ +tinybool sdp_attr_rtpmap_payload_valid (sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + uint16_t *inst_num, uint16_t payload_type) +{ + uint16_t i; + sdp_attr_t *attr_p; + uint16_t num_instances; + + *inst_num = 0; + + if (sdp_attr_num_instances(sdp_p, level, cap_num, + SDP_ATTR_RTPMAP, &num_instances) != SDP_SUCCESS) { + return (FALSE); + } + + for (i=1; i <= num_instances; i++) { + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_RTPMAP, i); + if ((attr_p != NULL) && + (attr_p->attr.transport_map.payload_num == payload_type)) { + *inst_num = i; + return (TRUE); + } + } + + return (FALSE); +} + +/* Function: sdp_attr_get_rtpmap_payload_type + * Description: Returns the value of the rtpmap attribute payload type + * parameter specified for the given attribute. If the given + * attribute is not defined, zero is returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Payload type value. + */ +uint16_t sdp_attr_get_rtpmap_payload_type (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_RTPMAP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s rtpmap attribute, level %u instance %u " + "not found.", + sdp_p->debug_str, + (unsigned)level, + (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + return (attr_p->attr.transport_map.payload_num); + } +} + +/* Function: sdp_attr_get_rtpmap_encname + * Description: Returns a pointer to the value of the encoding name + * parameter specified for the given attribute. Value is + * returned as a const ptr and so cannot be modified by the + * application. If the given attribute is not defined, NULL + * will be returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Codec value or SDP_CODEC_INVALID. + */ +const char *sdp_attr_get_rtpmap_encname (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_RTPMAP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s rtpmap attribute, level %u instance %u " + "not found.", + sdp_p->debug_str, + (unsigned)level, + (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (NULL); + } else { + return (attr_p->attr.transport_map.encname); + } +} + +/* Function: sdp_attr_get_rtpmap_clockrate + * Description: Returns the value of the rtpmap attribute clockrate + * parameter specified for the given attribute. If the given + * attribute is not defined, zero is returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Clockrate value. + */ +uint32_t sdp_attr_get_rtpmap_clockrate (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_RTPMAP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s rtpmap attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + return (attr_p->attr.transport_map.clockrate); + } +} + +/* Function: sdp_attr_get_rtpmap_num_chan + * Description: Returns the value of the rtpmap attribute num_chan + * parameter specified for the given attribute. If the given + * attribute is not defined, zero is returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Number of channels param or zero. + */ +uint16_t sdp_attr_get_rtpmap_num_chan (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_RTPMAP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s rtpmap attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + return (attr_p->attr.transport_map.num_chan); + } +} + +/* Function: sdp_attr_get_ice_attribute + * Description: Returns the value of an ice attribute at a given level + * + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * ice_attrib Returns an ice attrib string + * Returns: + * SDP_SUCCESS Attribute param was set successfully. + * SDP_INVALID_SDP_PTR SDP pointer invalid + * SDP_INVALID_PARAMETER Specified attribute is not defined. + */ + +sdp_result_e sdp_attr_get_ice_attribute (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e sdp_attr, uint16_t inst_num, + char **out) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, sdp_attr, inst_num); + if (attr_p != NULL) { + *out = attr_p->attr.ice_attr; + return (SDP_SUCCESS); + } else { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s ice attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } +} + +/* Function: sdp_attr_is_present + * Description: Returns a boolean value based on attribute being present or + * not + * + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * attr_type The attribute type. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * Returns: + * Boolean value. + */ + +tinybool sdp_attr_is_present (sdp_t *sdp_p, sdp_attr_e attr_type, uint16_t level, + uint8_t cap_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, attr_type, 1); + if (attr_p != NULL) { + return (TRUE); + } + if (sdp_p->debug_flag[SDP_DEBUG_WARNINGS]) { + SDPLogDebug(logTag, "%s Attribute %s, level %u not found.", + sdp_p->debug_str, sdp_get_attr_name(attr_type), level); + } + + return (FALSE); +} + + + +/* Function: sdp_attr_get_rtcp_mux_attribute + * Description: Returns the value of an rtcp-mux attribute at a given level + * + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * rtcp_mux Returns an rtcp-mux attrib bool + * Returns: + * SDP_SUCCESS Attribute param was set successfully. + * SDP_INVALID_SDP_PTR SDP pointer invalid + * SDP_INVALID_PARAMETER Specified attribute is not defined. + */ +sdp_result_e sdp_attr_get_rtcp_mux_attribute (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e sdp_attr, uint16_t inst_num, + tinybool *rtcp_mux) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, sdp_attr, inst_num); + if (attr_p != NULL) { + *rtcp_mux = attr_p->attr.boolean_val; + return (SDP_SUCCESS); + } else { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s rtcp-mux attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } +} + +/* Function: sdp_attr_get_setup_attribute + * Description: Returns the value of a setup attribute at a given level + * + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * setup_type Returns sdp_setup_type_e enum + * Returns: + * SDP_SUCCESS Attribute param was set successfully. + * SDP_INVALID_SDP_PTR SDP pointer invalid + * SDP_INVALID_PARAMETER Specified attribute is not defined. + */ +sdp_result_e sdp_attr_get_setup_attribute (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, sdp_setup_type_e *setup_type) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_SETUP, inst_num); + if (!attr_p) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, + "%s setup attribute, level %u instance %u not found.", + sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return SDP_INVALID_PARAMETER; + } + + *setup_type = attr_p->attr.setup; + return SDP_SUCCESS; +} + +/* Function: sdp_attr_get_connection_attribute + * Description: Returns the value of a connection attribute at a given level + * + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * connection_type Returns sdp_connection_type_e enum + * Returns: + * SDP_SUCCESS Attribute param was set successfully. + * SDP_INVALID_SDP_PTR SDP pointer invalid + * SDP_INVALID_PARAMETER Specified attribute is not defined. + */ +sdp_result_e sdp_attr_get_connection_attribute (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, sdp_connection_type_e *connection_type) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_CONNECTION, + inst_num); + if (!attr_p) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, + "%s setup attribute, level %u instance %u not found.", + sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return SDP_INVALID_PARAMETER; + } + + *connection_type = attr_p->attr.connection; + return SDP_SUCCESS; +} + +/* Function: sdp_attr_get_dtls_fingerprint_attribute + * Description: Returns the value of dtls fingerprint attribute at a given level + * + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * dtls_fingerprint Returns an dtls fingerprint attrib string + * Returns: + * SDP_SUCCESS Attribute param was set successfully. + * SDP_INVALID_SDP_PTR SDP pointer invalid + * SDP_INVALID_PARAMETER Specified attribute is not defined. + */ +sdp_result_e sdp_attr_get_dtls_fingerprint_attribute (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, sdp_attr_e sdp_attr, uint16_t inst_num, + char **out) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, sdp_attr, inst_num); + if (attr_p != NULL) { + *out = attr_p->attr.string_val; + return (SDP_SUCCESS); + } else { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s dtls fingerprint attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } +} + +/* Function: sdp_attr_sprtmap_payload_valid + * Description: Returns true or false depending on whether an sprtmap + * attribute was specified with the given payload value + * at the given level. If it was, the instance number of + * that attribute is returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number of the attribute + * found is returned via this param. + * Returns: TRUE or FALSE. + */ +tinybool sdp_attr_sprtmap_payload_valid (sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + uint16_t *inst_num, uint16_t payload_type) +{ + uint16_t i; + sdp_attr_t *attr_p; + uint16_t num_instances; + + *inst_num = 0; + + if (sdp_attr_num_instances(sdp_p, level, cap_num, + SDP_ATTR_SPRTMAP, &num_instances) != SDP_SUCCESS) { + return (FALSE); + } + + for (i=1; i <= num_instances; i++) { + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_SPRTMAP, i); + if ((attr_p != NULL) && + (attr_p->attr.transport_map.payload_num == payload_type)) { + *inst_num = i; + return (TRUE); + } + } + + return (FALSE); +} + +/* Function: sdp_attr_get_sprtmap_payload_type + * Description: Returns the value of the sprtmap attribute payload type + * parameter specified for the given attribute. If the given + * attribute is not defined, zero is returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Payload type value. + */ +uint16_t sdp_attr_get_sprtmap_payload_type (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_SPRTMAP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s sprtmap attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + return (attr_p->attr.transport_map.payload_num); + } +} + +/* Function: sdp_attr_get_sprtmap_encname + * Description: Returns a pointer to the value of the encoding name + * parameter specified for the given attribute. Value is + * returned as a const ptr and so cannot be modified by the + * application. If the given attribute is not defined, NULL + * will be returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Codec value or SDP_CODEC_INVALID. + */ +const char *sdp_attr_get_sprtmap_encname (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_SPRTMAP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s sprtmap attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (NULL); + } else { + return (attr_p->attr.transport_map.encname); + } +} + +/* Function: sdp_attr_get_sprtmap_clockrate + * Description: Returns the value of the sprtmap attribute clockrate + * parameter specified for the given attribute. If the given + * attribute is not defined, zero is returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Clockrate value. + */ +uint32_t sdp_attr_get_sprtmap_clockrate (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_SPRTMAP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s sprtmap attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + return (attr_p->attr.transport_map.clockrate); + } +} + +/* Function: sdp_attr_get_sprtmap_num_chan + * Description: Returns the value of the sprtmap attribute num_chan + * parameter specified for the given attribute. If the given + * attribute is not defined, zero is returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Number of channels param or zero. + */ +uint16_t sdp_attr_get_sprtmap_num_chan (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_SPRTMAP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s sprtmap attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + return (attr_p->attr.transport_map.num_chan); + } +} + +/* Note: The fmtp attribute formats currently handled are: + * fmtp:<payload type> <event>,<event>... + * fmtp:<payload_type> [annexa=yes/no] [annexb=yes/no] [bitrate=<value>] + * where "value" is a numeric value > 0 + * where each event is a single number or a range separated + * by a '-'. + * Example: fmtp:101 1,3-15,20 + */ + +/* Function: tinybool sdp_attr_fmtp_valid(sdp_t *sdp_p) + * Description: Returns true or false depending on whether an fmtp + * attribute was specified with the given payload value + * at the given level. If it was, the instance number of + * that attribute is returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: TRUE or FALSE. + */ +tinybool sdp_attr_fmtp_payload_valid (sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + uint16_t *inst_num, uint16_t payload_type) +{ + uint16_t i; + sdp_attr_t *attr_p; + uint16_t num_instances; + + if (sdp_attr_num_instances(sdp_p, level, cap_num, + SDP_ATTR_FMTP, &num_instances) != SDP_SUCCESS) { + return (FALSE); + } + + for (i=1; i <= num_instances; i++) { + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, i); + if ((attr_p != NULL) && + (attr_p->attr.fmtp.payload_num == payload_type)) { + *inst_num = i; + return (TRUE); + } + } + + return (FALSE); +} + +/* Function: sdp_attr_get_fmtp_payload_type + * Description: Returns the value of the fmtp attribute payload type + * parameter specified for the given attribute. If the given + * attribute is not defined, zero is returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Payload type value. + */ +uint16_t sdp_attr_get_fmtp_payload_type (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + return (attr_p->attr.fmtp.payload_num); + } +} + + +/* Function: sdp_attr_fmtp_is_range_set + * Description: Determines if a range of events is set in an fmtp attribute. + * The overall range for events is 0-255. + * This will return either FULL_MATCH, PARTIAL_MATCH, or NO_MATCH + * depending on whether all, some, or none of the specified + * events are defined. If the given attribute is not defined, + * NO_MATCH will be returned. It is up to the appl to verify + * the validity of the attribute before calling this routine. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * low_val Low value of the range. Range is 0-255. + * high_val High value of the range. + * Returns: SDP_FULL_MATCH, SDP_PARTIAL_MATCH, SDP_NO_MATCH + */ +sdp_ne_res_e sdp_attr_fmtp_is_range_set (sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + uint16_t inst_num, uint8_t low_val, uint8_t high_val) +{ + uint16_t i; + uint32_t mapword; + uint32_t bmap; + uint32_t num_vals = 0; + uint32_t num_vals_set = 0; + sdp_attr_t *attr_p; + sdp_fmtp_t *fmtp_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_NO_MATCH); + } + + fmtp_p = &(attr_p->attr.fmtp); + for (i = low_val; i <= high_val; i++) { + num_vals++; + mapword = i/SDP_NE_BITS_PER_WORD; + bmap = SDP_NE_BIT_0 << (i%32); + if (fmtp_p->bmap[ mapword ] & bmap) { + num_vals_set++; + } + } + + if (num_vals == num_vals_set) { + return (SDP_FULL_MATCH); + } else if (num_vals_set == 0) { + return (SDP_NO_MATCH); + } else { + return (SDP_PARTIAL_MATCH); + } +} + +/* Function: sdp_attr_fmtp_valid + * Description: Determines the validity of the events in the fmtp. + * The overall range for events is 0-255. + * The user passes an event list with valid events supported by Appl. + * This routine will do a simple AND comparison and report the result. + * + * This will return TRUE if ftmp events are valid, and FALSE otherwise. + * It is up to the appl to verify the validity of the attribute + * before calling this routine. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * appl_maxval Max event value supported by Appl. Range is 0-255. + * evt_array Bitmap containing events supported by application. + * Returns: TRUE, FALSE + */ +tinybool +sdp_attr_fmtp_valid(sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + uint16_t inst_num, uint16_t appl_maxval, uint32_t* evt_array) +{ + uint16_t i; + uint32_t mapword; + sdp_attr_t *attr_p; + sdp_fmtp_t *fmtp_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return FALSE; + } + + fmtp_p = &(attr_p->attr.fmtp); + + /* Do quick test. If application max value is lower than fmtp's then error */ + if (fmtp_p->maxval > appl_maxval) + return FALSE; + + /* Ok, events are within range. Now check that only + * allowed events have been received + */ + mapword = appl_maxval/SDP_NE_BITS_PER_WORD; + for (i=0; i<mapword; i++) { + if (fmtp_p->bmap[i] & ~(evt_array[i])) { + /* Remote SDP is requesting events not supported by Application */ + return FALSE; + } + } + return TRUE; +} + +/* Function: sdp_attr_set_fmtp_payload_type + * Description: Sets the value of the fmtp attribute payload type parameter + * for the given attribute. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * payload_type New payload type value. + * Returns: SDP_SUCCESS Attribute param was set successfully. + * SDP_INVALID_PARAMETER Specified attribute is not defined. + */ +sdp_result_e sdp_attr_set_fmtp_payload_type (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + uint16_t payload_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + attr_p->attr.fmtp.payload_num = payload_num; + return (SDP_SUCCESS); + } +} + +/* Function: sdp_attr_get_fmtp_range + * Description: Get a range of named events for an fmtp attribute. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * bmap The 8 word data array holding the bitmap + * Returns: SDP_SUCCESS + */ +sdp_result_e sdp_attr_get_fmtp_range (sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + uint16_t inst_num, uint32_t *bmap) +{ + sdp_attr_t *attr_p; + sdp_fmtp_t *fmtp_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } + + fmtp_p = &(attr_p->attr.fmtp); + memcpy(bmap, fmtp_p->bmap, SDP_NE_NUM_BMAP_WORDS * sizeof(uint32_t) ); + + return (SDP_SUCCESS); +} + +/* Function: sdp_attr_clear_fmtp_range + * Description: Clear a range of named events for an fmtp attribute. The low + * value specified must be <= the high value. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * low_val The low value of the range. Range is 0-255 + * high_val The high value of the range. May be == low. + * Returns: SDP_SUCCESS + */ +sdp_result_e sdp_attr_clear_fmtp_range (sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + uint16_t inst_num, uint8_t low_val, uint8_t high_val) +{ + uint16_t i; + uint32_t mapword; + uint32_t bmap; + sdp_attr_t *attr_p; + sdp_fmtp_t *fmtp_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } + + fmtp_p = &(attr_p->attr.fmtp); + for (i = low_val; i <= high_val; i++) { + mapword = i/SDP_NE_BITS_PER_WORD; + bmap = SDP_NE_BIT_0 << (i%32); + fmtp_p->bmap[ mapword ] &= ~bmap; + } + if (high_val > fmtp_p->maxval) { + fmtp_p->maxval = high_val; + } + return (SDP_SUCCESS); +} + +/* Function: sdp_attr_compare_fmtp_ranges + * Description: Compare the named events set of two fmtp attributes. If all + * events are the same (either set or not), FULL_MATCH will be + * returned. If no events match, NO_MATCH will be returned. + * Otherwise PARTIAL_MATCH will be returned. If either attr is + * invalid, NO_MATCH will be returned. + * Parameters: src_sdp_p The SDP handle returned by sdp_init_description. + * dst_sdp_p The SDP handle returned by sdp_init_description. + * src_level The level of the src fmtp attribute. + * dst_level The level to the dst fmtp attribute. + * src_cap_num The capability number of the src attr. + * dst_cap_num The capability number of the dst attr. + * src_inst_numh The attribute instance of the src attr. + * dst_inst_numh The attribute instance of the dst attr. + * Returns: SDP_FULL_MATCH, SDP_PARTIAL_MATCH, SDP_NO_MATCH. + */ +sdp_ne_res_e sdp_attr_compare_fmtp_ranges (sdp_t *src_sdp_p,sdp_t *dst_sdp_p, + uint16_t src_level, uint16_t dst_level, + uint8_t src_cap_num, uint8_t dst_cap_num, + uint16_t src_inst_num, uint16_t dst_inst_num) +{ + uint16_t i,j; + uint32_t bmap; + uint32_t num_vals_match = 0; + sdp_attr_t *src_attr_p; + sdp_attr_t *dst_attr_p; + sdp_fmtp_t *src_fmtp_p; + sdp_fmtp_t *dst_fmtp_p; + + src_attr_p = sdp_find_attr(src_sdp_p, src_level, src_cap_num, + SDP_ATTR_FMTP, src_inst_num); + dst_attr_p = sdp_find_attr(dst_sdp_p, dst_level, dst_cap_num, + SDP_ATTR_FMTP, dst_inst_num); + if ((src_attr_p == NULL) || (dst_attr_p == NULL)) { + if (src_sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s source or destination fmtp attribute for " + "compare not found.", src_sdp_p->debug_str); + } + src_sdp_p->conf_p->num_invalid_param++; + return (SDP_NO_MATCH); + } + + src_fmtp_p = &(src_attr_p->attr.fmtp); + dst_fmtp_p = &(dst_attr_p->attr.fmtp); + for (i = 0; i < SDP_NE_NUM_BMAP_WORDS; i++) { + for (j = 0; j < SDP_NE_BITS_PER_WORD; j++) { + bmap = SDP_NE_BIT_0 << j; + if ((src_fmtp_p->bmap[i] & bmap) && (dst_fmtp_p->bmap[i] & bmap)) { + num_vals_match++; + } else if ((!(src_fmtp_p->bmap[i] & bmap)) && + (!(dst_fmtp_p->bmap[i] & bmap))) { + num_vals_match++; + } + } + } + + if (num_vals_match == (SDP_NE_NUM_BMAP_WORDS * SDP_NE_BITS_PER_WORD)) { + return (SDP_FULL_MATCH); + } else if (num_vals_match == 0) { + return (SDP_NO_MATCH); + } else { + return (SDP_PARTIAL_MATCH); + } +} + +/* Function: sdp_attr_copy_fmtp_ranges + * Description: Copy the named events set for one fmtp attribute to another. + * Parameters: src_sdp_p The SDP handle returned by sdp_init_description. + * dst_sdp_p The SDP handle returned by sdp_init_description. + * src_level The level of the src fmtp attribute. + * dst_level The level to the dst fmtp attribute. + * src_cap_num The capability number of the src attr. + * dst_cap_num The capability number of the dst attr. + * src_inst_numh The attribute instance of the src attr. + * dst_inst_numh The attribute instance of the dst attr. + * Returns: SDP_SUCCESS + */ +sdp_result_e sdp_attr_copy_fmtp_ranges (sdp_t *src_sdp_p, sdp_t *dst_sdp_p, + uint16_t src_level, uint16_t dst_level, + uint8_t src_cap_num, uint8_t dst_cap_num, + uint16_t src_inst_num, uint16_t dst_inst_num) +{ + uint16_t i; + sdp_attr_t *src_attr_p; + sdp_attr_t *dst_attr_p; + sdp_fmtp_t *src_fmtp_p; + sdp_fmtp_t *dst_fmtp_p; + + if (!src_sdp_p || !dst_sdp_p) { + return (SDP_INVALID_SDP_PTR); + } + + src_attr_p = sdp_find_attr(src_sdp_p, src_level, src_cap_num, + SDP_ATTR_FMTP, src_inst_num); + dst_attr_p = sdp_find_attr(dst_sdp_p, dst_level, dst_cap_num, + SDP_ATTR_FMTP, dst_inst_num); + if ((src_attr_p == NULL) || (dst_attr_p == NULL)) { + if (src_sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s source or destination fmtp attribute for " + "copy not found.", src_sdp_p->debug_str); + } + src_sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } + + src_fmtp_p = &(src_attr_p->attr.fmtp); + dst_fmtp_p = &(dst_attr_p->attr.fmtp); + dst_fmtp_p->maxval = src_fmtp_p->maxval; + for (i = 0; i < SDP_NE_NUM_BMAP_WORDS; i++) { + dst_fmtp_p->bmap[i] = src_fmtp_p->bmap[i]; + } + return (SDP_SUCCESS); +} + +/* Function: sdp_attr_get_fmtp_mode + * Description: Gets the value of the fmtp attribute mode parameter + * for the given attribute. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * payload_type payload type. + * Returns: mode value or zero if mode attribute not found + */ +uint32_t sdp_attr_get_fmtp_mode_for_payload_type (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint32_t payload_type) +{ + uint16_t num_a_lines = 0; + int i; + sdp_attr_t *attr_p; + + /* + * Get number of FMTP attributes for the AUDIO line + */ + (void) sdp_attr_num_instances(sdp_p, level, cap_num, SDP_ATTR_FMTP, + &num_a_lines); + for (i = 0; i < num_a_lines; i++) { + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, (uint16_t) (i + 1)); + if ((attr_p != NULL) && + (attr_p->attr.fmtp.payload_num == (uint16_t)payload_type)) { + if (attr_p->attr.fmtp.fmtp_format == SDP_FMTP_MODE) { + return attr_p->attr.fmtp.mode; + } + } + } + return 0; +} + +sdp_result_e sdp_attr_set_fmtp_max_fs (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + uint32_t max_fs) +{ + sdp_attr_t *attr_p; + sdp_fmtp_t *fmtp_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } + + fmtp_p = &(attr_p->attr.fmtp); + fmtp_p->fmtp_format = SDP_FMTP_CODEC_INFO; + + if (max_fs > 0) { + fmtp_p->max_fs = max_fs; + return (SDP_SUCCESS); + } else { + return (SDP_FAILURE); + } +} + +sdp_result_e sdp_attr_set_fmtp_max_fr (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + uint32_t max_fr) +{ + sdp_attr_t *attr_p; + sdp_fmtp_t *fmtp_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } + + fmtp_p = &(attr_p->attr.fmtp); + fmtp_p->fmtp_format = SDP_FMTP_CODEC_INFO; + + if (max_fr > 0) { + fmtp_p->max_fr = max_fr; + return (SDP_SUCCESS); + } else { + return (SDP_FAILURE); + } +} + +/* Function: sdp_attr_get_fmtp_max_average_bitrate + * Description: Gets the value of the fmtp attribute- maxaveragebitrate parameter for the OPUS codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: max-br value. + */ + +sdp_result_e sdp_attr_get_fmtp_max_average_bitrate (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint32_t* val) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, 1); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + *val = attr_p->attr.fmtp.maxaveragebitrate; + return (SDP_SUCCESS); + } +} + + +/* Function: sdp_attr_get_fmtp_usedtx + * Description: Gets the value of the fmtp attribute- usedtx parameter for the OPUS codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: usedtx value. + */ + +sdp_result_e sdp_attr_get_fmtp_usedtx (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, tinybool* val) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + *val = (tinybool)attr_p->attr.fmtp.usedtx; + return (SDP_SUCCESS); + } +} + +/* Function: sdp_attr_get_fmtp_usedtx + * Description: Gets the value of the fmtp attribute- usedtx parameter for the OPUS codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: stereo value. + */ + +sdp_result_e sdp_attr_get_fmtp_stereo (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, tinybool* val) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + *val = (tinybool)attr_p->attr.fmtp.stereo; + return (SDP_SUCCESS); + } +} + +/* Function: sdp_attr_get_fmtp_useinbandfec + * Description: Gets the value of the fmtp attribute useinbandfec parameter for the OPUS codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: useinbandfec value. + */ + +sdp_result_e sdp_attr_get_fmtp_useinbandfec (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, tinybool* val) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + *val = (tinybool)attr_p->attr.fmtp.useinbandfec; + return (SDP_SUCCESS); + } +} + +/* Function: sdp_attr_get_fmtp_maxcodedaudiobandwidth + * Description: Gets the value of the fmtp attribute maxcodedaudiobandwidth parameter for OPUS codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: maxcodedaudiobandwidth value. + */ +char* sdp_attr_get_fmtp_maxcodedaudiobandwidth (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + return (attr_p->attr.fmtp.maxcodedaudiobandwidth); + } +} + +/* Function: sdp_attr_get_fmtp_cbr + * Description: Gets the value of the fmtp attribute cbr parameter for the OPUS codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: cbr value. + */ + +sdp_result_e sdp_attr_get_fmtp_cbr (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, tinybool* val) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + *val = (tinybool)attr_p->attr.fmtp.cbr; + return (SDP_SUCCESS); + } +} + +uint16_t sdp_attr_get_sctpmap_port(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_SCTPMAP, inst_num); + if (!attr_p) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s sctpmap port, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return 0; + } else { + return attr_p->attr.sctpmap.port; + } +} + +sdp_result_e sdp_attr_get_sctpmap_streams (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint32_t* val) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_SCTPMAP, inst_num); + if (!attr_p) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s sctpmap streams, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + *val = attr_p->attr.sctpmap.streams; + return (SDP_SUCCESS); + } +} + +sdp_result_e sdp_attr_get_sctpmap_protocol (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + char* protocol) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_SCTPMAP, + inst_num); + if (!attr_p) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s sctpmap, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + sstrncpy(protocol, attr_p->attr.sctpmap.protocol, SDP_MAX_STRING_LEN+1); + } + return (SDP_SUCCESS); +} + +/* Function: sdp_attr_fmtp_is_annexb_set + * Description: Gives the value of the fmtp attribute annexb type parameter + * for the given attribute. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * + * + * Returns: TRUE or FALSE. + */ +tinybool sdp_attr_fmtp_is_annexb_set (sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (FALSE); + } else { + return (attr_p->attr.fmtp.annexb); + } +} + +/* Function: sdp_attr_fmtp_is_annexa_set + * Description: Gives the value of the fmtp attribute annexa type parameter + * for the given attribute. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * + * + * Returns: TRUE or FALSE. + */ +tinybool sdp_attr_fmtp_is_annexa_set (sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (FALSE); + } else { + return (attr_p->attr.fmtp.annexa); + } +} + +/* Function: sdp_attr_get_fmtp_bitrate_type + * Description: Gets the value of the fmtp attribute bitrate type parameter + * for the given attribute. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Bitrate type value. + */ +int32_t sdp_attr_get_fmtp_bitrate_type (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.bitrate); + } +} + +/* Function: sdp_attr_get_fmtp_qcif + * Description: Gets the value of the fmtp attribute QCIF type parameter + * for a given Video codec. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: QCIF value. + */ +int32_t sdp_attr_get_fmtp_qcif (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.qcif); + } +} +/* Function: sdp_attr_get_fmtp_cif + * Description: Gets the value of the fmtp attribute CIF type parameter + * for a given Video codec. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: CIF value. + */ +int32_t sdp_attr_get_fmtp_cif (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.cif); + } +} + + +/* Function: sdp_attr_get_fmtp_sqcif + * Description: Gets the value of the fmtp attribute sqcif type parameter + * for a given Video codec. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: sqcif value. + */ +int32_t sdp_attr_get_fmtp_sqcif (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.sqcif); + } +} + +/* Function: sdp_attr_get_fmtp_cif4 + * Description: Gets the value of the fmtp attribute CIF4 type parameter + * for a given Video codec. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: CIF4 value. + */ +int32_t sdp_attr_get_fmtp_cif4 (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.cif4); + } +} + +/* Function: sdp_attr_get_fmtp_cif16 + * Description: Gets the value of the fmtp attribute CIF16 type parameter + * for a given Video codec. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: CIF16 value. + */ + +int32_t sdp_attr_get_fmtp_cif16 (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.cif16); + } +} + + +/* Function: sdp_attr_get_fmtp_maxbr + * Description: Gets the value of the fmtp attribute MAXBR type parameter + * for a given Video codec. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: MAXBR value. + */ +int32_t sdp_attr_get_fmtp_maxbr (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.maxbr); + } +} + +/* Function: sdp_attr_get_fmtp_custom_x + * Description: Gets the value of the fmtp attribute CUSTOM type parameter + * for a given Video codec. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: CUSTOM x value. + */ + +int32_t sdp_attr_get_fmtp_custom_x (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.custom_x); + } +} +/* Function: sdp_attr_get_fmtp_custom_y + * Description: Gets the value of the fmtp attribute custom_y type parameter + * for a given Video codec. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: CUSTOM Y-AXIS value. + */ + +int32_t sdp_attr_get_fmtp_custom_y (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.custom_y); + } +} + +/* Function: sdp_attr_get_fmtp_custom_mpi + * Description: Gets the value of the fmtp attribute CUSTOM type parameter + * for a given Video codec. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: CUSTOM MPI value. + */ + +int32_t sdp_attr_get_fmtp_custom_mpi (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.custom_mpi); + } +} + +/* Function: sdp_attr_get_fmtp_par_width + * Description: Gets the value of the fmtp attribute PAR (width) parameter + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: PAR - width value. + */ +int32_t sdp_attr_get_fmtp_par_width (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.par_width); + } +} + +/* Function: sdp_attr_get_fmtp_par_height + * Description: Gets the value of the fmtp attribute PAR (height) parameter + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: PAR - height value. + */ +int32_t sdp_attr_get_fmtp_par_height (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.par_height); + } +} + +/* Function: sdp_attr_get_fmtp_cpcf + * Description: Gets the value of the fmtp attribute- CPCF parameter + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: CPCF value. + */ +int32_t sdp_attr_get_fmtp_cpcf (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.cpcf); + } +} + +/* Function: sdp_attr_get_fmtp_bpp + * Description: Gets the value of the fmtp attribute- BPP parameter + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: BPP value. + */ +int32_t sdp_attr_get_fmtp_bpp (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.bpp); + } +} + +/* Function: sdp_attr_get_fmtp_hrd + * Description: Gets the value of the fmtp attribute- HRD parameter + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: HRD value. + */ +int32_t sdp_attr_get_fmtp_hrd (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.hrd); + } +} + +/* Function: sdp_attr_get_fmtp_profile + * Description: Gets the value of the fmtp attribute- PROFILE parameter + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: PROFILE value. + */ +int32_t sdp_attr_get_fmtp_profile (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.profile); + } +} + +/* Function: sdp_attr_get_fmtp_level + * Description: Gets the value of the fmtp attribute- LEVEL parameter + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: LEVEL value. + */ +int32_t sdp_attr_get_fmtp_level (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.level); + } +} + +/* Function: sdp_attr_get_fmtp_interlace + * Description: Checks if INTERLACE parameter is set. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: TRUE if INTERLACE is present and FALSE if INTERLACE is absent. + */ +tinybool sdp_attr_get_fmtp_interlace (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return FALSE; + } else { + return (attr_p->attr.fmtp.is_interlace); + } +} + +/* Function: sdp_attr_get_fmtp_pack_mode + * Description: Gets the value of the fmtp attribute- packetization-mode parameter for H.264 codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: packetization-mode value in the range 0 - 2. + */ + +sdp_result_e sdp_attr_get_fmtp_pack_mode (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint16_t *val) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + if (SDP_INVALID_PACKETIZATION_MODE_VALUE == attr_p->attr.fmtp.packetization_mode) { + /* packetization mode unspecified (optional) */ + *val = SDP_DEFAULT_PACKETIZATION_MODE_VALUE; + } else { + *val = attr_p->attr.fmtp.packetization_mode; + } + return (SDP_SUCCESS); + } +} + +/* Function: sdp_attr_get_fmtp_level_asymmetry_allowed + * Description: Gets the value of the fmtp attribute- level-asymmetry-allowed parameter for H.264 codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: level asymmetry allowed value (0 or 1). + */ + +sdp_result_e sdp_attr_get_fmtp_level_asymmetry_allowed (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint16_t *val) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + *val = attr_p->attr.fmtp.level_asymmetry_allowed; + return (SDP_SUCCESS); + } +} + +/* Function: sdp_attr_get_fmtp_profile_id + * Description: Gets the value of the fmtp attribute- profile-level-id parameter for H.264 codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: profile-level-id value. + */ +const char* sdp_attr_get_fmtp_profile_id (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + return (attr_p->attr.fmtp.profile_level_id); + } +} + +/* Function: sdp_attr_get_fmtp_param_sets + * Description: Gets the value of the fmtp attribute- parameter-sets parameter for H.264 codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: parameter-sets value. + */ +const char* sdp_attr_get_fmtp_param_sets (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + return (attr_p->attr.fmtp.parameter_sets); + } +} + +/* Function: sdp_attr_get_fmtp_interleaving_depth + * Description: Gets the value of the fmtp attribute- interleaving_depth parameter for H.264 codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: interleaving_depth value + */ + +sdp_result_e sdp_attr_get_fmtp_interleaving_depth (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint16_t* val) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + *val = attr_p->attr.fmtp.interleaving_depth; + return (SDP_SUCCESS); + } +} + +/* Function: sdp_attr_get_fmtp_deint_buf_req + * Description: Gets the value of the fmtp attribute- deint-buf-req parameter for H.264 codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: deint-buf-req value. + */ + +sdp_result_e sdp_attr_get_fmtp_deint_buf_req (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + uint32_t *val) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + if (attr_p->attr.fmtp.flag & SDP_DEINT_BUF_REQ_FLAG) { + *val = attr_p->attr.fmtp.deint_buf_req; + return (SDP_SUCCESS); + } else { + return (SDP_FAILURE); + } + } +} + +/* Function: sdp_attr_get_fmtp_max_don_diff + * Description: Gets the value of the fmtp attribute- max-don-diff parameter for H.264 codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: max-don-diff value. + */ +sdp_result_e sdp_attr_get_fmtp_max_don_diff (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + uint32_t *val) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + *val = attr_p->attr.fmtp.max_don_diff; + return (SDP_SUCCESS); + } +} + +/* Function: sdp_attr_get_fmtp_init_buf_time + * Description: Gets the value of the fmtp attribute- init-buf-time parameter for H.264 codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: init-buf-time value. + */ +sdp_result_e sdp_attr_get_fmtp_init_buf_time (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + uint32_t *val) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + if (attr_p->attr.fmtp.flag & SDP_INIT_BUF_TIME_FLAG) { + *val = attr_p->attr.fmtp.init_buf_time; + return (SDP_SUCCESS); + } else { + return (SDP_FAILURE); + } + } +} + +/* Function: sdp_attr_get_fmtp_max_mbps + * Description: Gets the value of the fmtp attribute- max-mbps parameter for H.264 codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: max-mbps value. + */ + +sdp_result_e sdp_attr_get_fmtp_max_mbps (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + uint32_t *val) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + *val = attr_p->attr.fmtp.max_mbps; + return (SDP_SUCCESS); + } +} + +/* Function: sdp_attr_get_fmtp_max_fs + * Description: Gets the value of the fmtp attribute- max-fs parameter for H.264 codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: max-fs value. + */ + +sdp_result_e sdp_attr_get_fmtp_max_fs (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint32_t *val) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + *val = attr_p->attr.fmtp.max_fs; + return (SDP_SUCCESS); + } +} + +/* Function: sdp_attr_get_fmtp_max_fr + * Description: Gets the value of the fmtp attribute- max-fr parameter + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: max-fr value. + */ + +sdp_result_e sdp_attr_get_fmtp_max_fr (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint32_t *val) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + *val = attr_p->attr.fmtp.max_fr; + return (SDP_SUCCESS); + } +} + +/* Function: sdp_attr_get_fmtp_max_cpb + * Description: Gets the value of the fmtp attribute- max-cpb parameter for H.264 codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: max-cpb value. + */ + +sdp_result_e sdp_attr_get_fmtp_max_cpb (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint32_t *val) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + *val = attr_p->attr.fmtp.max_cpb; + return (SDP_SUCCESS); + } +} + +/* Function: sdp_attr_get_fmtp_max_dpb + * Description: Gets the value of the fmtp attribute- max-dpb parameter for H.264 codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: max-dpb value. + */ + +sdp_result_e sdp_attr_get_fmtp_max_dpb (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint32_t *val) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + *val = attr_p->attr.fmtp.max_dpb; + return (SDP_SUCCESS); + } +} + + +/* Function: sdp_attr_get_fmtp_max_br + * Description: Gets the value of the fmtp attribute- max-br parameter for H.264 codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: max-br value. + */ + +sdp_result_e sdp_attr_get_fmtp_max_br (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint32_t* val) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + *val = attr_p->attr.fmtp.max_br; + return (SDP_SUCCESS); + } +} + +/* Function: sdp_attr_fmtp_is_redundant_pic_cap + * Description: Gets the value of the fmtp attribute- redundant_pic_cap parameter for H.264 codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: redundant-pic-cap value. + */ +tinybool sdp_attr_fmtp_is_redundant_pic_cap (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (FALSE); + } else { + return (attr_p->attr.fmtp.redundant_pic_cap); + } +} + +/* Function: sdp_attr_get_fmtp_deint_buf_cap + * Description: Gets the value of the fmtp attribute- deint-buf-cap parameter for H.264 codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: deint-buf-cap value. + */ + +sdp_result_e sdp_attr_get_fmtp_deint_buf_cap (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + uint32_t *val) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + if (attr_p->attr.fmtp.flag & SDP_DEINT_BUF_CAP_FLAG) { + *val = attr_p->attr.fmtp.deint_buf_cap; + return (SDP_SUCCESS); + } else { + return (SDP_FAILURE); + } + } +} + +/* Function: sdp_attr_get_fmtp_max_rcmd_nalu_size + * Description: Gets the value of the fmtp attribute- max-rcmd-nalu-size parameter for H.264 codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: max-rcmd-nalu-size value. + */ +sdp_result_e sdp_attr_get_fmtp_max_rcmd_nalu_size (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + uint32_t *val) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + if (attr_p->attr.fmtp.flag & SDP_MAX_RCMD_NALU_SIZE_FLAG) { + *val = attr_p->attr.fmtp.max_rcmd_nalu_size; + return (SDP_SUCCESS); + } else { + return (SDP_FAILURE); + } + } +} + +/* Function: sdp_attr_fmtp_is_parameter_add + * Description: Gets the value of the fmtp attribute- parameter-add for H.264 codec + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: TRUE/FALSE ( parameter-add is boolean) + */ +tinybool sdp_attr_fmtp_is_parameter_add (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (FALSE); + } else { + /* Both 1 and SDP_FMTP_UNUSED (parameter not present) should be + * treated as TRUE, per RFC 3984, page 45 */ + return (attr_p->attr.fmtp.parameter_add != 0); + } +} + +/****** Following functions are get routines for Annex values + * For each Annex support, the get routine will return the boolean TRUE/FALSE + * Some Annexures for Video codecs have values defined . In those cases, + * (e.g Annex K, P ) , the return values are not boolean. + * + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Annex value + */ + +tinybool sdp_attr_get_fmtp_annex_d (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (FALSE); + } else { + return (attr_p->attr.fmtp.annex_d); + } +} + +tinybool sdp_attr_get_fmtp_annex_f (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (FALSE); + } else { + return (attr_p->attr.fmtp.annex_f); + } +} + +tinybool sdp_attr_get_fmtp_annex_i (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (FALSE); + } else { + return (attr_p->attr.fmtp.annex_i); + } +} + +tinybool sdp_attr_get_fmtp_annex_j (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (FALSE); + } else { + return (attr_p->attr.fmtp.annex_j); + } +} + +tinybool sdp_attr_get_fmtp_annex_t (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (FALSE); + } else { + return (attr_p->attr.fmtp.annex_t); + } +} + +int32_t sdp_attr_get_fmtp_annex_k_val (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.annex_k_val); + } +} + +int32_t sdp_attr_get_fmtp_annex_n_val (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.annex_n_val); + } +} + +int32_t sdp_attr_get_fmtp_annex_p_picture_resize (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.annex_p_val_picture_resize); + } +} + +int32_t sdp_attr_get_fmtp_annex_p_warp (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } else { + return (attr_p->attr.fmtp.annex_p_val_warp); + } +} + +/* Function: sdp_attr_fmtp_get_fmtp_format + * Description: Gives the value of the fmtp attribute fmtp_format + * type parameter + * for the given attribute. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * + * + * Returns: Enum type sdp_fmtp_format_type_e + */ +sdp_fmtp_format_type_e sdp_attr_fmtp_get_fmtp_format (sdp_t *sdp_p, + uint16_t level, uint8_t cap_num, + uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s fmtp attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_FMTP_UNKNOWN_TYPE); + } else { + return (attr_p->attr.fmtp.fmtp_format); + } +} + +/* Function: sdp_attr_get_pccodec_num_payload_types + * Description: Returns the number of payload types specified for the + * given X-pc-codec attribute. If the given attribute is not + * defined, zero is returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Number of payload types. + */ +uint16_t sdp_attr_get_pccodec_num_payload_types (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_X_PC_CODEC, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s X-pc-codec attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + return (attr_p->attr.pccodec.num_payloads); + } +} + +/* Function: sdp_attr_get_pccodec_payload_type + * Description: Returns the value of the specified payload type for the + * given X-pc-codec attribute. If the given attribute is not + * defined, zero is returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * payload_num The payload number to get. Range is (1 - + * max num payloads). + * Returns: Payload type. + */ +uint16_t sdp_attr_get_pccodec_payload_type (sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + uint16_t inst_num, uint16_t payload_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_X_PC_CODEC, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s X-pc-codec attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + if ((payload_num < 1) || + (payload_num > attr_p->attr.pccodec.num_payloads)) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s X-pc-codec attribute, level %u instance %u, " + "invalid payload number %u requested.", + sdp_p->debug_str, (unsigned)level, (unsigned)inst_num, (unsigned)payload_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + return (attr_p->attr.pccodec.payload_type[payload_num-1]); + } + } +} + +/* Function: sdp_attr_add_pccodec_payload_type + * Description: Add a new value to the list of payload types specified for + * the given X-pc-codec attribute. The payload type will be + * added to the end of the list so these values should be added + * in the order they will be displayed within the attribute. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * payload_type The payload type to add. + * Returns: SDP_SUCCESS Payload type was added successfully. + * SDP_INVALID_PARAMETER Specified attribute is not defined. + */ +sdp_result_e sdp_attr_add_pccodec_payload_type (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + uint16_t payload_type) +{ + uint16_t payload_num; + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_X_PC_CODEC, + inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s X-pc-codec attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } else { + payload_num = attr_p->attr.pccodec.num_payloads++; + attr_p->attr.pccodec.payload_type[payload_num] = payload_type; + return (SDP_SUCCESS); + } +} + +/* Function: sdp_attr_get_xcap_first_cap_num + * Description: Gets the first capability number valid for the specified + * X-cap attribute instance. If the capability is not + * defined, zero is returned. + * Note: cap_num is not specified. It must be zero. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the capability. + * inst_num The X-cap instance number to check. + * Returns: Capability number or zero. + */ +uint16_t sdp_attr_get_xcap_first_cap_num (sdp_t *sdp_p, uint16_t level, uint16_t inst_num) +{ + uint16_t cap_num=1; + uint16_t attr_count=0; + sdp_attr_t *attr_p; + sdp_mca_t *mca_p; + + if (level == SDP_SESSION_LEVEL) { + for (attr_p = sdp_p->sess_attrs_p; attr_p != NULL; + attr_p = attr_p->next_p) { + if (attr_p->type == SDP_ATTR_X_CAP) { + attr_count++; + if (attr_count == inst_num) { + return (cap_num); + } else { + cap_num += attr_p->attr.cap_p->num_payloads; + } + } + } + } else { /* Capability is at a media level */ + mca_p = sdp_find_media_level(sdp_p, level); + if (mca_p == NULL) { + sdp_p->conf_p->num_invalid_param++; + return (0); + } + for (attr_p = mca_p->media_attrs_p; attr_p != NULL; + attr_p = attr_p->next_p) { + if (attr_p->type == SDP_ATTR_X_CAP) { + attr_count++; + if (attr_count == inst_num) { + return (cap_num); + } else { + cap_num += attr_p->attr.cap_p->num_payloads; + } + } + } + } /* Attr is at a media level */ + + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s X-cap attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); +} + +/* Function: sdp_attr_get_xcap_media_type + * Description: Returns the media type specified for the given X-cap + * attribute. If the given attribute is not defined, + * SDP_MEDIA_INVALID is returned. + * Note: cap_num is not specified. It must be zero. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * inst_num The attribute instance number to check. + * Returns: Media type or SDP_MEDIA_INVALID. + */ +sdp_media_e sdp_attr_get_xcap_media_type (sdp_t *sdp_p, uint16_t level, + uint16_t inst_num) +{ + sdp_attr_t *attr_p; + sdp_mca_t *cap_p; + + attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_X_CAP, inst_num); + if ((attr_p == NULL) || (attr_p->attr.cap_p == NULL)) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s X-cap attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_MEDIA_INVALID); + } else { + cap_p = attr_p->attr.cap_p; + return (cap_p->media); + } +} + +/* Function: sdp_attr_get_xcap_transport_type + * Description: Returns the transport type specified for the given X-cap + * attribute. If the given attribute is not defined, + * SDP_TRANSPORT_INVALID is returned. + * Note: cap_num is not specified. It must be zero. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * inst_num The attribute instance number to check. + * Returns: Media type or SDP_TRANSPORT_INVALID. + */ +sdp_transport_e sdp_attr_get_xcap_transport_type (sdp_t *sdp_p, uint16_t level, + uint16_t inst_num) +{ + sdp_attr_t *attr_p; + sdp_mca_t *cap_p; + + attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_X_CAP, + inst_num); + if ((attr_p == NULL) || (attr_p->attr.cap_p == NULL)) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s X-cap attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_TRANSPORT_INVALID); + } else { + cap_p = attr_p->attr.cap_p; + return (cap_p->transport); + } +} + +/* Function: sdp_attr_get_xcap_num_payload_types + * Description: Returns the number of payload types associated with the + * specified X-cap attribute. If the attribute is invalid, + * zero will be returned. Application must validate the + * attribute line before using this routine. + * Note: cap_num is not specified. It must be zero. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Number of payload types or zero. + */ +uint16_t sdp_attr_get_xcap_num_payload_types (sdp_t *sdp_p, uint16_t level, + uint16_t inst_num) +{ + sdp_attr_t *attr_p; + sdp_mca_t *cap_p; + + attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_X_CAP, inst_num); + if ((attr_p == NULL) || (attr_p->attr.cap_p == NULL)) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s X-cap attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + cap_p = attr_p->attr.cap_p; + return (cap_p->num_payloads); + } +} + +/* Function: sdp_attr_get_xcap_payload_type + * Description: Returns the payload type of the specified payload for the + * X-cap attribute line. If the attr line or payload number is + * invalid, zero will be returned. Application must validate + * the X-cap attr before using this routine. + * Note: cap_num is not specified. It must be zero. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * inst_num The attribute instance number to check. + * payload_num The payload number to retrieve. Range is + * (1 - max num payloads). + * Returns: Payload type or zero. + */ +uint16_t sdp_attr_get_xcap_payload_type (sdp_t *sdp_p, uint16_t level, + uint16_t inst_num, uint16_t payload_num, + sdp_payload_ind_e *indicator) +{ + sdp_attr_t *attr_p; + sdp_mca_t *cap_p; + + attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_X_CAP, inst_num); + if ((attr_p == NULL) || (attr_p->attr.cap_p == NULL)) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s X-cap attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + cap_p = attr_p->attr.cap_p; + if ((payload_num < 1) || + (payload_num > cap_p->num_payloads)) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s X-cap attribute, level %u instance %u, " + "payload num %u invalid.", sdp_p->debug_str, + (unsigned)level, (unsigned)inst_num, (unsigned)payload_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + *indicator = cap_p->payload_indicator[payload_num-1]; + return (cap_p->payload_type[payload_num-1]); + } + } +} + + +/* Function: sdp_attr_add_xcap_payload_type + * Description: Add a new payload type for the X-cap attribute line + * specified. The new payload type will be added at the end + * of the payload type list. + * Note: cap_num is not specified. It must be zero. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * inst_num The attribute instance number to check. + * payload_type The new payload type. + * Returns: SDP_SUCCESS or SDP_INVALID_PARAMETER + */ +sdp_result_e sdp_attr_add_xcap_payload_type(sdp_t *sdp_p, uint16_t level, + uint16_t inst_num, uint16_t payload_type, + sdp_payload_ind_e indicator) +{ + sdp_attr_t *attr_p; + sdp_mca_t *cap_p; + + attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_X_CAP, inst_num); + if ((attr_p == NULL) || (attr_p->attr.cap_p == NULL)) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s X-cap attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } + + cap_p = attr_p->attr.cap_p; + cap_p->payload_indicator[cap_p->num_payloads] = indicator; + cap_p->payload_type[cap_p->num_payloads++] = payload_type; + return (SDP_SUCCESS); +} + +/* Function: sdp_attr_get_cdsc_first_cap_num + * Description: Gets the first capability number valid for the specified + * CDSC attribute instance. If the capability is not + * defined, zero is returned. + * Note: cap_num is not specified. It must be zero. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the capability. + * inst_num The CDSC instance number to check. + * Returns: Capability number or zero. + */ +uint16_t sdp_attr_get_cdsc_first_cap_num(sdp_t *sdp_p, uint16_t level, uint16_t inst_num) +{ + uint16_t cap_num=1; + uint16_t attr_count=0; + sdp_attr_t *attr_p; + sdp_mca_t *mca_p; + + if (level == SDP_SESSION_LEVEL) { + for (attr_p = sdp_p->sess_attrs_p; attr_p != NULL; + attr_p = attr_p->next_p) { + if (attr_p->type == SDP_ATTR_CDSC) { + attr_count++; + if (attr_count == inst_num) { + return (cap_num); + } else { + cap_num += attr_p->attr.cap_p->num_payloads; + } + } + } + } else { /* Capability is at a media level */ + mca_p = sdp_find_media_level(sdp_p, level); + if (mca_p == NULL) { + sdp_p->conf_p->num_invalid_param++; + return (0); + } + for (attr_p = mca_p->media_attrs_p; attr_p != NULL; + attr_p = attr_p->next_p) { + if (attr_p->type == SDP_ATTR_CDSC) { + attr_count++; + if (attr_count == inst_num) { + return (cap_num); + } else { + cap_num += attr_p->attr.cap_p->num_payloads; + } + } + } + } /* Attr is at a media level */ + + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s CDSC attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); +} + +/* Function: sdp_attr_get_cdsc_media_type + * Description: Returns the media type specified for the given CDSC + * attribute. If the given attribute is not defined, + * SDP_MEDIA_INVALID is returned. + * Note: cap_num is not specified. It must be zero. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * inst_num The attribute instance number to check. + * Returns: Media type or SDP_MEDIA_INVALID. + */ +sdp_media_e sdp_attr_get_cdsc_media_type(sdp_t *sdp_p, uint16_t level, + uint16_t inst_num) +{ + sdp_attr_t *attr_p; + sdp_mca_t *cdsc_p; + + attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_CDSC, inst_num); + if ((attr_p == NULL) || (attr_p->attr.cap_p == NULL)) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s CDSC attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_MEDIA_INVALID); + } else { + cdsc_p = attr_p->attr.cap_p; + return (cdsc_p->media); + } +} + +/* Function: sdp_attr_get_cdsc_transport_type + * Description: Returns the transport type specified for the given CDSC + * attribute. If the given attribute is not defined, + * SDP_TRANSPORT_INVALID is returned. + * Note: cap_num is not specified. It must be zero. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * inst_num The attribute instance number to check. + * Returns: Media type or SDP_TRANSPORT_INVALID. + */ +sdp_transport_e sdp_attr_get_cdsc_transport_type(sdp_t *sdp_p, uint16_t level, + uint16_t inst_num) +{ + sdp_attr_t *attr_p; + sdp_mca_t *cdsc_p; + + attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_CDSC, + inst_num); + if ((attr_p == NULL) || (attr_p->attr.cap_p == NULL)) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s CDSC attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_TRANSPORT_INVALID); + } else { + cdsc_p = attr_p->attr.cap_p; + return (cdsc_p->transport); + } +} + +/* Function: sdp_attr_get_cdsc_num_payload_types + * Description: Returns the number of payload types associated with the + * specified CDSC attribute. If the attribute is invalid, + * zero will be returned. Application must validate the + * attribute line before using this routine. + * Note: cap_num is not specified. It must be zero. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Number of payload types or zero. + */ +uint16_t sdp_attr_get_cdsc_num_payload_types (sdp_t *sdp_p, uint16_t level, + uint16_t inst_num) +{ + sdp_attr_t *attr_p; + sdp_mca_t *cdsc_p; + + attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_CDSC, inst_num); + if ((attr_p == NULL) || (attr_p->attr.cap_p == NULL)) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s CDSC attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + cdsc_p = attr_p->attr.cap_p; + return (cdsc_p->num_payloads); + } +} + +/* Function: sdp_attr_get_cdsc_payload_type + * Description: Returns the payload type of the specified payload for the + * CDSC attribute line. If the attr line or payload number is + * invalid, zero will be returned. Application must validate + * the CDSC attr before using this routine. + * Note: cap_num is not specified. It must be zero. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * inst_num The attribute instance number to check. + * payload_num The payload number to retrieve. Range is + * (1 - max num payloads). + * Returns: Payload type or zero. + */ +uint16_t sdp_attr_get_cdsc_payload_type (sdp_t *sdp_p, uint16_t level, + uint16_t inst_num, uint16_t payload_num, + sdp_payload_ind_e *indicator) +{ + sdp_attr_t *attr_p; + sdp_mca_t *cdsc_p; + + attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_CDSC, inst_num); + if ((attr_p == NULL) || (attr_p->attr.cap_p == NULL)) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s CDSC attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + cdsc_p = attr_p->attr.cap_p; + if ((payload_num < 1) || + (payload_num > cdsc_p->num_payloads)) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s CDSC attribute, level %u instance %u, " + "payload num %u invalid.", sdp_p->debug_str, + (unsigned)level, (unsigned)inst_num, (unsigned)payload_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + *indicator = cdsc_p->payload_indicator[payload_num-1]; + return (cdsc_p->payload_type[payload_num-1]); + } + } +} + +/* Function: sdp_attr_add_cdsc_payload_type + * Description: Add a new payload type for the CDSC attribute line + * specified. The new payload type will be added at the end + * of the payload type list. + * Note: cap_num is not specified. It must be zero. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * inst_num The attribute instance number to check. + * payload_type The new payload type. + * Returns: SDP_SUCCESS or SDP_INVALID_PARAMETER + */ +sdp_result_e sdp_attr_add_cdsc_payload_type (sdp_t *sdp_p, uint16_t level, + uint16_t inst_num, uint16_t payload_type, + sdp_payload_ind_e indicator) +{ + sdp_attr_t *attr_p; + sdp_mca_t *cdsc_p; + + attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_CDSC, inst_num); + if ((attr_p == NULL) || (attr_p->attr.cap_p == NULL)) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s CDSC attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } + + cdsc_p = attr_p->attr.cap_p; + cdsc_p->payload_indicator[cdsc_p->num_payloads] = indicator; + cdsc_p->payload_type[cdsc_p->num_payloads++] = payload_type; + return (SDP_SUCCESS); +} + +/* Function: sdp_media_dynamic_payload_valid + * Description: Checks if the dynamic payload type passed in is defined + * on the media line m_line + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * payload_type Payload type to be checked + * + * Returns: TRUE or FALSE. Returns TRUE if payload type is defined on the + * media line, else returns FALSE + */ + +tinybool sdp_media_dynamic_payload_valid (sdp_t *sdp_p, uint16_t payload_type, + uint16_t m_line) +{ + uint16_t p_type,m_ptype; + ushort num_payload_types; + sdp_payload_ind_e ind; + tinybool payload_matches = FALSE; + tinybool result = TRUE; + + if ((payload_type < SDP_MIN_DYNAMIC_PAYLOAD) || + (payload_type > SDP_MAX_DYNAMIC_PAYLOAD)) { + return FALSE; + } + + num_payload_types = + sdp_get_media_num_payload_types(sdp_p, m_line); + + for(p_type=1; p_type <=num_payload_types;p_type++){ + + m_ptype = (uint16_t)sdp_get_media_payload_type(sdp_p, + m_line, p_type, &ind); + if (payload_type == m_ptype) { + payload_matches = TRUE; + break; + } + + } + + if (!payload_matches) { + return FALSE; + } + + return (result); + +} + +/* Function: sdp_attr_get_rtr_confirm + * Description: Returns the value of the rtr attribute confirm + * parameter specified for the given attribute. Returns TRUE if + * the confirm parameter is specified. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Boolean value. + */ +tinybool sdp_attr_get_rtr_confirm (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_RTR, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s %s attribute, level %u instance %u " + "not found.", sdp_p->debug_str, + sdp_get_attr_name(SDP_ATTR_RTR), (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (FALSE); + } else { + return (attr_p->attr.rtr.confirm); + } +} + + + +sdp_mediadir_role_e sdp_attr_get_comediadir_role (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_DIRECTION, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s Comediadir role attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_MEDIADIR_ROLE_UNKNOWN); + } else { + return (attr_p->attr.comediadir.role); + } +} + +/* Function: sdp_attr_get_silencesupp_enabled + * Description: Returns the value of the silencesupp attribute enable + * parameter specified for the given attribute. Returns TRUE if + * the confirm parameter is specified. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Boolean value. + */ +tinybool sdp_attr_get_silencesupp_enabled (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SILENCESUPP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s silenceSuppEnable attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (FALSE); + } else { + return (attr_p->attr.silencesupp.enabled); + } +} + +/* Function: sdp_attr_get_silencesupp_timer + * Description: Returns the value of the silencesupp attribute timer + * parameter specified for the given attribute. null_ind + * is set to TRUE if no value was specified, but instead the + * null "-" value was specified. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: 16-bit timer value + * boolean null_ind + */ +uint16_t sdp_attr_get_silencesupp_timer (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + tinybool *null_ind) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SILENCESUPP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s silenceTimer attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + *null_ind = attr_p->attr.silencesupp.timer_null; + return (attr_p->attr.silencesupp.timer); + } +} + +/* Function: sdp_attr_get_silencesupp_pref + * Description: Sets the silencesupp supppref value + * If this parameter is TRUE, the confirm parameter will be + * specified when the SDP description is built. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * confirm New qos confirm parameter. + * Returns: SDP_SUCCESS Attribute param was set successfully. + * SDP_INVALID_PARAMETER Specified attribute is not defined. + */ +sdp_silencesupp_pref_e sdp_attr_get_silencesupp_pref (sdp_t *sdp_p, + uint16_t level, uint8_t cap_num, + uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SILENCESUPP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s silence suppPref attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_SILENCESUPP_PREF_UNKNOWN); + } else { + return (attr_p->attr.silencesupp.pref); + } +} + +/* Function: sdp_attr_get_silencesupp_siduse + * Description: Returns the value of the silencesupp attribute siduse + * parameter specified for the given attribute. If the given + * attribute is not defined, SDP_QOS_STRENGTH_UNKNOWN is + * returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: silencesupp siduse enum. + */ +sdp_silencesupp_siduse_e sdp_attr_get_silencesupp_siduse (sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SILENCESUPP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s silence sidUse attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_SILENCESUPP_SIDUSE_UNKNOWN); + } else { + return (attr_p->attr.silencesupp.siduse); + } +} + +/* Function: sdp_attr_get_silencesupp_fxnslevel + * Description: Returns the value of the silencesupp attribute fxns + * (fixed noise) parameter specified for the given attribute. + * null_ind is set to TRUE if no value was specified, + * but instead the null "-" value was specified. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: 7-bit fxns value + * boolean null_ind + */ +uint8_t sdp_attr_get_silencesupp_fxnslevel (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + tinybool *null_ind) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SILENCESUPP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s silence fxnslevel attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + *null_ind = attr_p->attr.silencesupp.fxnslevel_null; + return (attr_p->attr.silencesupp.fxnslevel); + } +} + +/* Function: sdp_attr_get_mptime_num_intervals + * Description: Returns the number of intervals specified for the + * given mptime attribute. If the given attribute is not + * defined, zero is returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Number of intervals. + */ +uint16_t sdp_attr_get_mptime_num_intervals ( + sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num) { + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_MPTIME, inst_num); + if (attr_p != NULL) { + return attr_p->attr.mptime.num_intervals; + } + + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s mptime attribute, level %u instance %u not found.", + sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return 0; +} + +/* Function: sdp_attr_get_mptime_interval + * Description: Returns the value of the specified interval for the + * given mptime attribute. If the given attribute is not + * defined, zero is returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * interval_num The interval number to get. Range is (1 - + * max num payloads). + * Returns: Interval. + */ +uint16_t sdp_attr_get_mptime_interval ( + sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num, + uint16_t interval_num) { + + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_MPTIME, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s mptime attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return 0; + } + + if ((interval_num<1) || (interval_num>attr_p->attr.mptime.num_intervals)) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s mptime attribute, level %u instance %u, " + "invalid interval number %u requested.", + sdp_p->debug_str, (unsigned)level, (unsigned)inst_num, (unsigned)interval_num); + } + sdp_p->conf_p->num_invalid_param++; + return 0; + } + + return attr_p->attr.mptime.intervals[interval_num-1]; +} + +/* Function: sdp_attr_add_mptime_interval + * Description: Add a new value to the list of intervals specified for + * the given mptime attribute. The interval will be + * added to the end of the list so these values should be added + * in the order they will be displayed within the attribute. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * mp_interval The interval to add. + * Returns: SDP_SUCCESS Interval was added successfully. + * SDP_INVALID_PARAMETER Specified attribute is not defined. + * SDP_INVALID_SDP_PTR Supplied SDP pointer is invalid + */ +sdp_result_e sdp_attr_add_mptime_interval ( + sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num, + uint16_t mp_interval) { + + uint16_t interval_num; + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_MPTIME, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s mptime attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return SDP_INVALID_PARAMETER; + } + + interval_num = attr_p->attr.mptime.num_intervals; + if (interval_num>=SDP_MAX_PAYLOAD_TYPES) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s mptime attribute, level %u instance %u " + "exceeds maximum length.", + sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return SDP_INVALID_PARAMETER; + } + + attr_p->attr.mptime.intervals[interval_num] = mp_interval; + ++attr_p->attr.mptime.num_intervals; + return SDP_SUCCESS; +} + + + +/* Function: sdp_get_group_attr + * Description: Returns the attribute parameter from the a=group:<> + * line. If no attrib has been set , + * SDP_GROUP_ATTR_UNSUPPORTED will be returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level SDP_SESSION_LEVEL + * Returns: Valid attrib value or SDP_GROUP_ATTR_UNSUPPORTED. + */ +sdp_group_attr_e sdp_get_group_attr (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_GROUP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s Group (a= group line) attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_GROUP_ATTR_UNSUPPORTED); + } else { + if (sdp_p->debug_flag[SDP_DEBUG_TRACE]) { + SDP_PRINT("%s Stream data group attr field is :%s ", + sdp_p->debug_str, + sdp_get_group_attr_name(attr_p->attr.stream_data.group_attr) ); + } + return (attr_p->attr.stream_data.group_attr); + } +} + +/* Function: sdp_get_group_num_id + * Description: Returns the number of ids from the a=group:<> line. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level SDP_SESSION_LEVEL + * Returns: Num of group ids present or 0 if there is an error. + */ +uint16_t sdp_get_group_num_id (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_GROUP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s a=group level attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (0); + } else { + if (sdp_p->debug_flag[SDP_DEBUG_TRACE]) { + SDP_PRINT("%s Stream data group attr - num of ids is :%u ", + sdp_p->debug_str, + (unsigned)attr_p->attr.stream_data.num_group_id); + } + } + return (attr_p->attr.stream_data.num_group_id); +} + +/* Function: sdp_get_group_id + * Description: Returns the group id from the a=group:<> line. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level SDP_SESSION_LEVEL + * id_num Number of the id to retrieve. The range is (1 - + * SDP_MAX_GROUP_STREAM_ID) + * Returns: Value of the group id at the index specified or + * NULL if an error + */ +const char* sdp_get_group_id (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, uint16_t id_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_GROUP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s a=group level attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (NULL); + } else { + if (sdp_p->debug_flag[SDP_DEBUG_TRACE]) { + SDP_PRINT("%s Stream data group attr - num of ids is :%u ", + sdp_p->debug_str, + (unsigned)attr_p->attr.stream_data.num_group_id); + } + if ((id_num < 1) || (id_num > attr_p->attr.stream_data.num_group_id)) { + return (NULL); + } + } + return (attr_p->attr.stream_data.group_ids[id_num-1]); +} + +/* Function: sdp_attr_get_x_sidin + * Description: Returns the attribute parameter from the a=X-sidin:<> + * line. If no attrib has been set NULL will be returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level media level index + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Pointer to sidin or NULL. + */ +const char* sdp_attr_get_x_sidin (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_X_SIDIN, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s X-sidin attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (NULL); + } else { + if (sdp_p->debug_flag[SDP_DEBUG_TRACE]) { + SDP_PRINT("%s Stream X-sidin attr field is :%s ", + sdp_p->debug_str, + attr_p->attr.stream_data.x_sidin); + } + return (attr_p->attr.stream_data.x_sidin); + } +} + +/* Function: sdp_attr_get_x_sidout + * Description: Returns the attribute parameter from the a=X-sidout:<> + * line. If no attrib has been set NULL will be returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level media level index + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Pointer to sidout or NULL. + */ +const char* sdp_attr_get_x_sidout (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_X_SIDOUT, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s X-sidout attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (NULL); + } else { + if (sdp_p->debug_flag[SDP_DEBUG_TRACE]) { + SDP_PRINT("%s Stream X-sidout attr field is :%s ", + sdp_p->debug_str, + attr_p->attr.stream_data.x_sidout); + } + return (attr_p->attr.stream_data.x_sidout); + } +} + +/* Function: sdp_attr_get_x_confid + * Description: Returns the attribute parameter from the a=X-confid:<> + * line. If no attrib has been set NULL will be returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level media level index + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Pointer to confid or NULL. + */ +const char* sdp_attr_get_x_confid (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_X_CONFID, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s X-confid attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (NULL); + } else { + if (sdp_p->debug_flag[SDP_DEBUG_TRACE]) { + SDP_PRINT("%s Stream X-confid attr field is :%s ", + sdp_p->debug_str, + attr_p->attr.stream_data.x_confid); + } + return (attr_p->attr.stream_data.x_confid); + } +} + +/* Function: sdp_get_source_filter_mode + * Description: Gets the filter mode in internal representation + * Parameters: sdp_p The SDP handle which contains the attributes + * level SDP_SESSION_LEVEL/m-line number + * inst_num The attribute instance number + * Returns: Filter mode (incl/excl/not present) + */ +sdp_src_filter_mode_e +sdp_get_source_filter_mode (sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SOURCE_FILTER, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s Source filter attribute, level %u, " + "instance %u not found", sdp_p->debug_str, + (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_FILTER_MODE_NOT_PRESENT); + } + return (attr_p->attr.source_filter.mode); +} + +/* Function: sdp_get_filter_destination_attributes + * Description: Gets the destination address parameters + * Parameters: Network type (optional), destination address type + * (optional), and destination address (mandatory) variables + * which gets updated. + * Returns: SDP_SUCCESS or SDP_INVALID_PARAMETER/SDP_INVALID_SDP_PTR + */ +sdp_result_e +sdp_get_filter_destination_attributes (sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + uint16_t inst_num, sdp_nettype_e *nettype, + sdp_addrtype_e *addrtype, + char *dest_addr) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SOURCE_FILTER, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s Source filter attribute, level %u instance %u " + "not found", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } + if (nettype) { + *nettype = attr_p->attr.source_filter.nettype; + } + if (addrtype) { + *addrtype = attr_p->attr.source_filter.addrtype; + } + sstrncpy(dest_addr, attr_p->attr.source_filter.dest_addr, + SDP_MAX_STRING_LEN+1); + + return (SDP_SUCCESS); +} + +/* Function: sdp_get_filter_source_address_count + * Description: Gets the number of source addresses in the list + * Parameters: sdp_p The SDP handle which contains the attributes + * level SDP_SESSION_LEVEL/m-line number + * inst_num The attribute instance number + * Returns: Source-list count + */ + +int32_t +sdp_get_filter_source_address_count (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SOURCE_FILTER, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s Source filter attribute, level %u instance %u " + "not found", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_VALUE); + } + return (attr_p->attr.source_filter.num_src_addr); +} + +/* Function: sdp_get_filter_source_address + * Description: Gets one of the source address that is indexed by the user + * Parameters: sdp_p The SDP handle which contains the attributes + * level SDP_SESSION_LEVEL/m-line number + * inst_num The attribute instance number + * src_addr_id User provided index (value in range between + * 0 to (SDP_MAX_SRC_ADDR_LIST-1) which obtains + * the source addr corresponding to it. + * src_addr The user provided variable which gets updated + * with source address corresponding to the index + */ +sdp_result_e +sdp_get_filter_source_address (sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + uint16_t inst_num, uint16_t src_addr_id, + char *src_addr) +{ + sdp_attr_t *attr_p; + + src_addr[0] = '\0'; + + if (src_addr_id >= SDP_MAX_SRC_ADDR_LIST) { + return (SDP_INVALID_PARAMETER); + } + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SOURCE_FILTER, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s Source filter attribute, level %u instance %u " + "not found", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } + if (src_addr_id >= attr_p->attr.source_filter.num_src_addr) { + return (SDP_INVALID_PARAMETER); + } + sstrncpy(src_addr, attr_p->attr.source_filter.src_list[src_addr_id], + SDP_MAX_STRING_LEN+1); + + return (SDP_SUCCESS); +} + +sdp_rtcp_unicast_mode_e +sdp_get_rtcp_unicast_mode(sdp_t *sdp_p, uint16_t level, uint8_t cap_num, + uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_RTCP_UNICAST, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s RTCP Unicast attribute, level %u, " + "instance %u not found", sdp_p->debug_str, + (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_RTCP_UNICAST_MODE_NOT_PRESENT); + } + return ((sdp_rtcp_unicast_mode_e)attr_p->attr.u32_val); +} + + +/* Function: sdp_attr_get_sdescriptions_tag + * Description: Returns the value of the sdescriptions tag + * parameter specified for the given attribute. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: Tag value or SDP_INVALID_VALUE (-2) if error encountered. + */ + +int32_t +sdp_attr_get_sdescriptions_tag (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SDESCRIPTIONS, inst_num); + + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s srtp attribute tag, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return SDP_INVALID_VALUE; + } else { + return attr_p->attr.srtp_context.tag; + } +} + +/* Function: sdp_attr_get_sdescriptions_crypto_suite + * Description: Returns the value of the sdescriptions crypto suite + * parameter specified for the given attribute. Note that + * this is a common api for both version 2 and version 9 + * sdescriptions. It has no knowledge which version is being + * used so it will first try to find if a version 2 sdescriptions + * attribute is present. If it is, return the suite. If it's not, + * try to find the version 9. This assumes you cannot have both + * versions in the same SDP. + * + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: SDP_SRTP_UNKNOWN_CRYPTO_SUITE is returned if an error was + * encountered otherwise the crypto suite is returned. + */ + +sdp_srtp_crypto_suite_t +sdp_attr_get_sdescriptions_crypto_suite (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + + /* Try version 2 first */ + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SRTP_CONTEXT, inst_num); + + if (attr_p == NULL) { + /* There's no version 2 so now try version 9 */ + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SDESCRIPTIONS, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s srtp attribute suite, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return SDP_SRTP_UNKNOWN_CRYPTO_SUITE; + } + } + + return attr_p->attr.srtp_context.suite; + +} + +/* Function: sdp_attr_get_sdescriptions_key + * Description: Returns the value of the sdescriptions master key + * parameter specified for the given attribute. Note that + * this is a common api for both version 2 and version 9 + * sdescriptions. It has no knowledge which version is being + * used so it will first try to find if a version 2 sdescriptions + * attribute is present. If it is, return the key. If it's not, + * try to find the version 9. This assumes you cannot have both + * versions in the same SDP. + * + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: NULL if error encountered or master key salt string + */ + +const char* +sdp_attr_get_sdescriptions_key (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + /* Try version 2 first */ + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SRTP_CONTEXT, inst_num); + + if (attr_p == NULL) { + /* Couldn't find version 2 now try version 9 */ + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SDESCRIPTIONS, inst_num); + + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s srtp attribute key, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return NULL; + } + } + + return (char*)attr_p->attr.srtp_context.master_key; +} + + +/* Function: sdp_attr_get_sdescriptions_salt + * Description: Returns the value of the sdescriptions master salt + * parameter specified for the given attribute. Note that + * this is a common api for both version 2 and version 9 + * sdescriptions. It has no knowledge which version is being + * used so it will first try to find if a version 2 sdescriptions + * attribute is present. If it is, return the salt. If it's not, + * try to find the version 9. This assumes you cannot have both + * versions in the same SDP. + * + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: NULL if error encountered or master key salt string + */ + +const char* +sdp_attr_get_sdescriptions_salt (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + /* Try version 2 first */ + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SRTP_CONTEXT, inst_num); + + if (attr_p == NULL) { + /* Couldn't find version 2 now try version 9 */ + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SDESCRIPTIONS, inst_num); + + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s srtp attribute salt, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return NULL; + } + } + + return (char*) attr_p->attr.srtp_context.master_salt; + +} + + + +/* Function: sdp_attr_get_sdescriptions_lifetime + * Description: Returns the value of the sdescriptions lifetime + * parameter specified for the given attribute.Note that + * this is a common api for both version 2 and version 9 + * sdescriptions. It has no knowledge which version is being + * used so it will first try to find if a version 2 sdescriptions + * attribute is present. If it is, return the lifetime. If it's + * not, try to find the version 9. This assumes you cannot have + * both versions in the same SDP. + * + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: NULL if error encountered or lifetime string + */ + +const char* +sdp_attr_get_sdescriptions_lifetime (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + /* Try version 2 first. */ + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SRTP_CONTEXT, inst_num); + + if (attr_p == NULL) { + /* Couldn't find version 2 now try version 9 */ + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SDESCRIPTIONS, inst_num); + + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s srtp attribute lifetime, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return NULL; + } + } + + return (char*)attr_p->attr.srtp_context.master_key_lifetime; + +} + +/* Function: sdp_attr_get_sdescriptions_mki + * Description: Returns the value of the sdescriptions MKI value and length + * parameter of the specified attribute instance. Note that + * this is a common api for both version 2 and version 9 + * sdescriptions. It has no knowledge which version is being + * used so it will first try to find if a version 2 sdescriptions + * attribute is present. If it is, return the MKI. If it's + * not, try to find version 9. This assumes you cannot have + * both versions in the same SDP. + * + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * mki_value application provided pointer that on exit + * is set to the MKI value string if one exists. + * mki_length application provided pointer that on exit + * is set to the MKI length if one exists. + * Returns: SDP_SUCCESS no errors encountered otherwise sdp error + * based upon the specific error. + */ + +sdp_result_e +sdp_attr_get_sdescriptions_mki (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num, + const char **mki_value, + uint16_t *mki_length) +{ + sdp_attr_t *attr_p; + + *mki_value = NULL; + *mki_length = 0; + + /* Try version 2 first */ + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SRTP_CONTEXT, inst_num); + + if (attr_p == NULL) { + /* Couldn't find version 2 now try version 9 */ + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SDESCRIPTIONS, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s srtp attribute MKI, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return SDP_INVALID_PARAMETER; + } + } + + *mki_value = (char*)attr_p->attr.srtp_context.mki; + *mki_length = attr_p->attr.srtp_context.mki_size_bytes; + return SDP_SUCCESS; + +} + + +/* Function: sdp_attr_get_sdescriptions_session_params + * Description: Returns the unparsed session parameters string. Note that + * this is a common api for both version 2 and version 9 + * sdescriptions. It has no knowledge which version is being + * used so it will first try to find if a version 2 sdescriptions + * attribute is present. If it is, return session parameters. If + * it's not, try to find version 9. This assumes you cannot have + * both versions in the same SDP. + * + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: NULL if no session parameters were received in the sdp, + * otherwise returns a pointer to the start of the session + * parameters string. Note that the calling function should + * not free the returned pointer. + */ + +const char* +sdp_attr_get_sdescriptions_session_params (sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + /* Try version 2 first */ + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SRTP_CONTEXT, inst_num); + + if (attr_p == NULL) { + /* Couldn't find version 2 try version 9 */ + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SDESCRIPTIONS, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s srtp attribute session params, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return NULL; + } + } + + return attr_p->attr.srtp_context.session_parameters; +} + + +/* Function: sdp_attr_get_sdescriptions_key_size + * Description: Returns the master key size. Note that + * this is a common api for both version 2 and version 9 + * sdescriptions. It has no knowledge which version is being + * used so it will first try to find if a version 2 sdescriptions + * attribute is present. If it is, return key size. If + * it's not, try to find version 9. This assumes you cannot have + * both versions in the same SDP. + * + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: 0 (SDP_SDESCRIPTIONS_KEY_SIZE_UNKNOWN) if error was + * encountered, otherwise key size. + */ + +unsigned char +sdp_attr_get_sdescriptions_key_size (sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + /* Try version 2 first */ + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SRTP_CONTEXT, inst_num); + + if (attr_p == NULL) { + /* Couldn't find version 2 now try version 9 */ + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SDESCRIPTIONS, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s srtp attribute MKI, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return SDP_SDESCRIPTIONS_KEY_SIZE_UNKNOWN; + } + } + + return attr_p->attr.srtp_context.master_key_size_bytes; + +} + + +/* Function: sdp_attr_get_sdescriptions_salt_size + * Description: Returns the salt key size. Note that + * this is a common api for both version 2 and version 9 + * sdescriptions. It has no knowledge which version is being + * used so it will first try to find if a version 2 sdescriptions + * attribute is present. If it is, return salt size. If + * it's not, try to find version 9. This assumes you cannot have + * both versions in the same SDP. + * + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: 0 (SDP_SDESCRIPTIONS_KEY_SIZE_UNKNOWN) if error was + * encountered, otherwise salt size. + */ + +unsigned char +sdp_attr_get_sdescriptions_salt_size (sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num) +{ + + sdp_attr_t *attr_p; + + /* Try version 2 first */ + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SRTP_CONTEXT, inst_num); + + if (attr_p == NULL) { + /* Couldn't find version 2 now try version 9 */ + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SDESCRIPTIONS, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s srtp attribute MKI, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return SDP_SDESCRIPTIONS_KEY_SIZE_UNKNOWN; + } + } + + return attr_p->attr.srtp_context.master_salt_size_bytes; + +} + + +/* Function: sdp_attr_get_srtp_crypto_selection_flags + * Description: Returns the selection flags. Note that + * this is a common api for both version 2 and version 9 + * sdescriptions. It has no knowledge which version is being + * used so it will first try to find if a version 2 sdescriptions + * attribute is present. If it is, return selection flags. If + * it's not, try to find version 9. This assumes you cannot have + * both versions in the same SDP. + * Currently only necessary for MGCP. + * + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * cap_num The capability number associated with the + * attribute if any. If none, should be zero. + * inst_num The attribute instance number to check. + * Returns: 0 (SDP_SRTP_CRYPTO_SELECTION_FLAGS_UNKNOWN) if error was + * encountered, otherwise selection flags. + */ + +unsigned long +sdp_attr_get_srtp_crypto_selection_flags (sdp_t *sdp_p, + uint16_t level, + uint8_t cap_num, + uint16_t inst_num) +{ + + + sdp_attr_t *attr_p; + + /* Try version 2 first */ + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SRTP_CONTEXT, inst_num); + + if (attr_p == NULL) { + /* Couldn't find version 2 now try version 9 */ + attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_SDESCRIPTIONS, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s srtp attribute MKI, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return SDP_SRTP_CRYPTO_SELECTION_FLAGS_UNKNOWN; + } + } + + return attr_p->attr.srtp_context.selection_flags; + +} + + + +/* Function: sdp_find_rtcp_fb_attr + * Description: Helper to find the nth instance of a rtcp-fb attribute of + * the specified feedback type. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * payload_type The payload to get the attribute for + * fb_type The feedback type to look for. + * inst_num The attribute instance number to check. + * Returns: Pointer to the attribute, or NULL if not found. + */ + +sdp_attr_t * +sdp_find_rtcp_fb_attr (sdp_t *sdp_p, + uint16_t level, + uint16_t payload_type, + sdp_rtcp_fb_type_e fb_type, + uint16_t inst_num) +{ + uint16_t attr_count=0; + sdp_mca_t *mca_p; + sdp_attr_t *attr_p; + + mca_p = sdp_find_media_level(sdp_p, level); + if (!mca_p) { + return (NULL); + } + for (attr_p = mca_p->media_attrs_p; attr_p; attr_p = attr_p->next_p) { + if (attr_p->type == SDP_ATTR_RTCP_FB && + (attr_p->attr.rtcp_fb.payload_num == payload_type || + attr_p->attr.rtcp_fb.payload_num == SDP_ALL_PAYLOADS) && + attr_p->attr.rtcp_fb.feedback_type == fb_type) { + attr_count++; + if (attr_count == inst_num) { + return (attr_p); + } + } + } + return NULL; +} + +/* Function: sdp_attr_get_rtcp_fb_ack + * Description: Returns the value of the rtcp-fb:...ack attribute + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * payload_type The payload to get the attribute for + * inst_num The attribute instance number to check. + * Returns: ACK type (SDP_RTCP_FB_ACK_NOT_FOUND if not present) + */ +sdp_rtcp_fb_ack_type_e +sdp_attr_get_rtcp_fb_ack(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, uint16_t inst) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_rtcp_fb_attr(sdp_p, level, payload_type, + SDP_RTCP_FB_ACK, inst); + if (!attr_p) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s rtcp-fb attribute, level %u, pt %u, " + "instance %u not found.", sdp_p->debug_str, (unsigned)level, + (unsigned)payload_type, (unsigned)inst); + } + sdp_p->conf_p->num_invalid_param++; + return SDP_RTCP_FB_ACK_NOT_FOUND; + } + return (attr_p->attr.rtcp_fb.param.ack); +} + +/* Function: sdp_attr_get_rtcp_fb_nack + * Description: Returns the value of the rtcp-fb:...nack attribute + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * payload_type The payload to get the attribute for + * inst_num The attribute instance number to check. + * Returns: NACK type (SDP_RTCP_FB_NACK_NOT_FOUND if not present) + */ +sdp_rtcp_fb_nack_type_e +sdp_attr_get_rtcp_fb_nack(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, uint16_t inst) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_rtcp_fb_attr(sdp_p, level, payload_type, + SDP_RTCP_FB_NACK, inst); + if (!attr_p) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s rtcp-fb attribute, level %u, pt %u, " + "instance %u not found.", sdp_p->debug_str, (unsigned)level, + (unsigned)payload_type, (unsigned)inst); + } + sdp_p->conf_p->num_invalid_param++; + return SDP_RTCP_FB_NACK_NOT_FOUND; + } + return (attr_p->attr.rtcp_fb.param.nack); +} + +/* Function: sdp_attr_get_rtcp_fb_trr_int + * Description: Returns the value of the rtcp-fb:...trr-int attribute + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * payload_type The payload to get the attribute for + * inst_num The attribute instance number to check. + * Returns: trr-int interval (0xFFFFFFFF if not found) + */ +uint32_t +sdp_attr_get_rtcp_fb_trr_int(sdp_t *sdp_p, uint16_t level, + uint16_t payload_type, uint16_t inst) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_rtcp_fb_attr(sdp_p, level, payload_type, + SDP_RTCP_FB_TRR_INT, inst); + if (!attr_p) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s rtcp-fb attribute, level %u, pt %u, " + "instance %u not found.", sdp_p->debug_str, (unsigned)level, + (unsigned)payload_type, (unsigned)inst); + } + sdp_p->conf_p->num_invalid_param++; + return 0xFFFFFFFF; + } + return (attr_p->attr.rtcp_fb.param.trr_int); +} + +/* Function: sdp_attr_get_rtcp_fb_remb_enabled + * Description: Returns true if rtcp-fb:...goog-remb attribute exists + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * payload_type The payload to get the attribute for + * Returns: true if rtcp-fb:...goog-remb exists + */ +tinybool +sdp_attr_get_rtcp_fb_remb_enabled(sdp_t *sdp_p, + uint16_t level, + uint16_t payload_type) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_rtcp_fb_attr(sdp_p, level, payload_type, + SDP_RTCP_FB_REMB, + 1); // always check for 1st instance + return (attr_p? TRUE : FALSE); // either exists or not +} + +/* Function: sdp_attr_get_rtcp_fb_transport_cc_enabled + * Description: Returns true if rtcp-fb:...transport-cc attribute exists + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * payload_type The payload to get the attribute for + * Returns: true if rtcp-fb:...transport-cc exists + */ +tinybool +sdp_attr_get_rtcp_fb_transport_cc_enabled(sdp_t *sdp_p, + uint16_t level, + uint16_t payload_type) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_rtcp_fb_attr(sdp_p, level, payload_type, + SDP_RTCP_FB_TRANSPORT_CC, + 1); // always check for 1st instance + return (attr_p? TRUE : FALSE); // either exists or not +} + +/* Function: sdp_attr_get_rtcp_fb_ccm + * Description: Returns the value of the rtcp-fb:...ccm attribute + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * payload_type The payload to get the attribute for + * inst_num The attribute instance number to check. + * Returns: CCM type (SDP_RTCP_FB_CCM_NOT_FOUND if not present) + */ +sdp_rtcp_fb_ccm_type_e +sdp_attr_get_rtcp_fb_ccm(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, uint16_t inst) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_rtcp_fb_attr(sdp_p, level, payload_type, + SDP_RTCP_FB_CCM, inst); + if (!attr_p) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s rtcp-fb attribute, level %u, pt %u, " + "instance %u not found.", sdp_p->debug_str, (unsigned)level, + (unsigned)payload_type, (unsigned)inst); + } + sdp_p->conf_p->num_invalid_param++; + return SDP_RTCP_FB_CCM_NOT_FOUND; + } + return (attr_p->attr.rtcp_fb.param.ccm); +} + +/* Function: sdp_attr_set_rtcp_fb_ack + * Description: Sets the value of an rtcp-fb:...ack attribute + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to set the attribute. + * payload_type The value to set the payload type to for + * this attribute. Can be SDP_ALL_PAYLOADS. + * inst_num The attribute instance number to check. + * type The ack type to indicate + * Returns: SDP_SUCCESS Attribute param was set successfully. + * SDP_INVALID_PARAMETER Specified attribute is not defined. + */ +sdp_result_e +sdp_attr_set_rtcp_fb_ack(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, uint16_t inst, + sdp_rtcp_fb_ack_type_e type) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_RTCP_FB, inst); + if (!attr_p) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s rtcp_fb ack attribute, level %u " + "instance %u not found.", sdp_p->debug_str, (unsigned)level, + (unsigned)inst); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } + + attr_p->attr.rtcp_fb.payload_num = payload_type; + attr_p->attr.rtcp_fb.feedback_type = SDP_RTCP_FB_ACK; + attr_p->attr.rtcp_fb.param.ack = type; + attr_p->attr.rtcp_fb.extra[0] = '\0'; + return (SDP_SUCCESS); +} + + +/* Function: sdp_attr_set_rtcp_fb_nack + * Description: Sets the value of an rtcp-fb:...nack attribute + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to set the attribute. + * payload_type The value to set the payload type to for + * this attribute. Can be SDP_ALL_PAYLOADS. + * inst_num The attribute instance number to check. + * type The nack type to indicate + * Returns: SDP_SUCCESS Attribute param was set successfully. + * SDP_INVALID_PARAMETER Specified attribute is not defined. + */ +sdp_result_e +sdp_attr_set_rtcp_fb_nack(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, uint16_t inst, + sdp_rtcp_fb_nack_type_e type) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_RTCP_FB, inst); + if (!attr_p) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s rtcp_fb nack attribute, level %u " + "instance %u not found.", sdp_p->debug_str, (unsigned)level, + (unsigned)inst); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } + + attr_p->attr.rtcp_fb.payload_num = payload_type; + attr_p->attr.rtcp_fb.feedback_type = SDP_RTCP_FB_NACK; + attr_p->attr.rtcp_fb.param.nack = type; + attr_p->attr.rtcp_fb.extra[0] = '\0'; + return (SDP_SUCCESS); +} + +/* Function: sdp_attr_set_rtcp_fb_trr_int + * Description: Sets the value of an rtcp-fb:...trr-int attribute + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to set the attribute. + * payload_type The value to set the payload type to for + * this attribute. Can be SDP_ALL_PAYLOADS. + * inst_num The attribute instance number to check. + * interval The interval time to indicate + * Returns: SDP_SUCCESS Attribute param was set successfully. + * SDP_INVALID_PARAMETER Specified attribute is not defined. + */ +sdp_result_e +sdp_attr_set_rtcp_fb_trr_int(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, + uint16_t inst, uint32_t interval) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_RTCP_FB, inst); + if (!attr_p) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s rtcp_fb trr-int attribute, level %u " + "instance %u not found.", sdp_p->debug_str, (unsigned)level, + (unsigned)inst); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } + + attr_p->attr.rtcp_fb.payload_num = payload_type; + attr_p->attr.rtcp_fb.feedback_type = SDP_RTCP_FB_TRR_INT; + attr_p->attr.rtcp_fb.param.trr_int = interval; + attr_p->attr.rtcp_fb.extra[0] = '\0'; + return (SDP_SUCCESS); +} + +/* Function: sdp_attr_set_rtcp_fb_remb + * Description: Sets the value of an rtcp-fb:...goog-remb attribute + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to set the attribute. + * payload_type The value to set the payload type to for + * this attribute. Can be SDP_ALL_PAYLOADS. + * inst_num The attribute instance number to check. + * Returns: SDP_SUCCESS Attribute param was set successfully. + * SDP_INVALID_PARAMETER Specified attribute is not defined. + */ +sdp_result_e +sdp_attr_set_rtcp_fb_remb(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, + uint16_t inst) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_RTCP_FB, inst); + if (!attr_p) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s rtcp_fb goog-remb attribute, level %u " + "instance %u not found.", sdp_p->debug_str, (unsigned)level, + (unsigned)inst); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } + + attr_p->attr.rtcp_fb.payload_num = payload_type; + attr_p->attr.rtcp_fb.feedback_type = SDP_RTCP_FB_REMB; + return (SDP_SUCCESS); +} + +/* Function: sdp_attr_set_rtcp_fb_transport_cc + * Description: Sets the value of an rtcp-fb:...transport-cc attribute + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to set the attribute. + * payload_type The value to set the payload type to for + * this attribute. Can be SDP_ALL_PAYLOADS. + * inst_num The attribute instance number to check. + * Returns: SDP_SUCCESS Attribute param was set successfully. + * SDP_INVALID_PARAMETER Specified attribute is not defined. + */ +sdp_result_e +sdp_attr_set_rtcp_fb_transport_cc(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, + uint16_t inst) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_RTCP_FB, inst); + if (!attr_p) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s rtcp_fb transport-cc attribute, level %u " + "instance %u not found.", sdp_p->debug_str, (unsigned)level, + (unsigned)inst); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } + + attr_p->attr.rtcp_fb.payload_num = payload_type; + attr_p->attr.rtcp_fb.feedback_type = SDP_RTCP_FB_TRANSPORT_CC; + return (SDP_SUCCESS); +} + +/* Function: sdp_attr_set_rtcp_fb_ccm + * Description: Sets the value of an rtcp-fb:...ccm attribute + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to set the attribute. + * payload_type The value to set the payload type to for + * this attribute. Can be SDP_ALL_PAYLOADS. + * inst_num The attribute instance number to check. + * type The ccm type to indicate + * Returns: SDP_SUCCESS Attribute param was set successfully. + * SDP_INVALID_PARAMETER Specified attribute is not defined. + */ +sdp_result_e +sdp_attr_set_rtcp_fb_ccm(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, uint16_t inst, + sdp_rtcp_fb_ccm_type_e type) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_RTCP_FB, inst); + if (!attr_p) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s rtcp_fb ccm attribute, level %u " + "instance %u not found.", sdp_p->debug_str, (unsigned)level, + (unsigned)inst); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } + attr_p->attr.rtcp_fb.payload_num = payload_type; + attr_p->attr.rtcp_fb.feedback_type = SDP_RTCP_FB_CCM; + attr_p->attr.rtcp_fb.param.ccm = type; + attr_p->attr.rtcp_fb.extra[0] = '\0'; + return (SDP_SUCCESS); +} + +/* Function: sdp_attr_get_extmap_uri + * Description: Returns a pointer to the value of the encoding name + * parameter specified for the given attribute. Value is + * returned as a const ptr and so cannot be modified by the + * application. If the given attribute is not defined, NULL + * will be returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * inst_num The attribute instance number to check. + * Returns: Codec value or SDP_CODEC_INVALID. + */ +const char *sdp_attr_get_extmap_uri(sdp_t *sdp_p, uint16_t level, + uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_EXTMAP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s extmap attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return (NULL); + } else { + return (attr_p->attr.extmap.uri); + } +} + +/* Function: sdp_attr_get_extmap_id + * Description: Returns the id of the extmap specified for the given + * attribute. If the given attribute is not defined, 0xFFFF + * will be returned. + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to check for the attribute. + * inst_num The attribute instance number to check. + * Returns: The id of the extmap attribute. + */ +uint16_t sdp_attr_get_extmap_id(sdp_t *sdp_p, uint16_t level, + uint16_t inst_num) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_EXTMAP, inst_num); + if (attr_p == NULL) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s extmap attribute, level %u instance %u " + "not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num); + } + sdp_p->conf_p->num_invalid_param++; + return 0xFFFF; + } else { + return (attr_p->attr.extmap.id); + } +} + +/* Function: sdp_attr_set_extmap + * Description: Sets the value of an rtcp-fb:...ccm attribute + * Parameters: sdp_p The SDP handle returned by sdp_init_description. + * level The level to set the attribute. + * id The id to set the attribute. + * uri The uri to set the attribute. + * inst The attribute instance number to check. + * Returns: SDP_SUCCESS Attribute param was set successfully. + * SDP_INVALID_PARAMETER Specified attribute is not defined. + */ +sdp_result_e +sdp_attr_set_extmap(sdp_t *sdp_p, uint16_t level, uint16_t id, const char* uri, uint16_t inst) +{ + sdp_attr_t *attr_p; + + attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_EXTMAP, inst); + if (!attr_p) { + if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) { + SDPLogError(logTag, "%s extmap attribute, level %u " + "instance %u not found.", sdp_p->debug_str, (unsigned)level, + (unsigned)inst); + } + sdp_p->conf_p->num_invalid_param++; + return (SDP_INVALID_PARAMETER); + } + + attr_p->attr.extmap.id = id; + sstrncpy(attr_p->attr.extmap.uri, uri, SDP_MAX_STRING_LEN+1); + return (SDP_SUCCESS); +} + +const char *sdp_attr_get_msid_identifier(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst) +{ + sdp_attr_t *attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_MSID, inst); + if (!attr_p) { + return NULL; + } + return attr_p->attr.msid.identifier; +} + +const char *sdp_attr_get_msid_appdata(sdp_t *sdp_p, uint16_t level, + uint8_t cap_num, uint16_t inst) +{ + sdp_attr_t *attr_p = sdp_find_attr(sdp_p, level, cap_num, + SDP_ATTR_MSID, inst); + if (!attr_p) { + return NULL; + } + return attr_p->attr.msid.appdata; +} |