diff options
Diffstat (limited to 'spa/plugins/avb/avbtp')
| -rw-r--r-- | spa/plugins/avb/avbtp/packets.h | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/spa/plugins/avb/avbtp/packets.h b/spa/plugins/avb/avbtp/packets.h new file mode 100644 index 0000000..3d4a652 --- /dev/null +++ b/spa/plugins/avb/avbtp/packets.h @@ -0,0 +1,220 @@ +/* Spa AVB support + * + * Copyright © 2022 Wim Taymans + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#ifndef SPA_AVB_PACKETS_H +#define SPA_AVB_PACKETS_H + +#define SPA_AVBTP_SUBTYPE_61883_IIDC 0x00 +#define SPA_AVBTP_SUBTYPE_MMA_STREAM 0x01 +#define SPA_AVBTP_SUBTYPE_AAF 0x02 +#define SPA_AVBTP_SUBTYPE_CVF 0x03 +#define SPA_AVBTP_SUBTYPE_CRF 0x04 +#define SPA_AVBTP_SUBTYPE_TSCF 0x05 +#define SPA_AVBTP_SUBTYPE_SVF 0x06 +#define SPA_AVBTP_SUBTYPE_RVF 0x07 +#define SPA_AVBTP_SUBTYPE_AEF_CONTINUOUS 0x6E +#define SPA_AVBTP_SUBTYPE_VSF_STREAM 0x6F +#define SPA_AVBTP_SUBTYPE_EF_STREAM 0x7F +#define SPA_AVBTP_SUBTYPE_NTSCF 0x82 +#define SPA_AVBTP_SUBTYPE_ESCF 0xEC +#define SPA_AVBTP_SUBTYPE_EECF 0xED +#define SPA_AVBTP_SUBTYPE_AEF_DISCRETE 0xEE +#define SPA_AVBTP_SUBTYPE_ADP 0xFA +#define SPA_AVBTP_SUBTYPE_AECP 0xFB +#define SPA_AVBTP_SUBTYPE_ACMP 0xFC +#define SPA_AVBTP_SUBTYPE_MAAP 0xFE +#define SPA_AVBTP_SUBTYPE_EF_CONTROL 0xFF + +struct spa_avbtp_packet_common { + uint8_t subtype; +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned sv:1; /* stream_id valid */ + unsigned version:3; + unsigned subtype_data1:4; +#elif __BYTE_ORDER == __LITTLE_ENDIAN + unsigned subtype_data1:4; + unsigned version:3; + unsigned sv:1; +#elif +#error "Unknown byte order" +#endif + uint16_t subtype_data2; + uint64_t stream_id; + uint8_t payload[0]; +} __attribute__ ((__packed__)); + +#define SPA_AVBTP_PACKET_SET_SUBTYPE(p,v) ((p)->subtype = (v)) +#define SPA_AVBTP_PACKET_SET_SV(p,v) ((p)->sv = (v)) +#define SPA_AVBTP_PACKET_SET_VERSION(p,v) ((p)->version = (v)) +#define SPA_AVBTP_PACKET_SET_STREAM_ID(p,v) ((p)->stream_id = htobe64(v)) + +#define SPA_AVBTP_PACKET_GET_SUBTYPE(p) ((p)->subtype) +#define SPA_AVBTP_PACKET_GET_SV(p) ((p)->sv) +#define SPA_AVBTP_PACKET_GET_VERSION(p) ((p)->version) +#define SPA_AVBTP_PACKET_GET_STREAM_ID(p) be64toh((p)->stream_id) + +struct spa_avbtp_packet_cc { + uint8_t subtype; +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned sv:1; + unsigned version:3; + unsigned control_data1:4; +#elif __BYTE_ORDER == __LITTLE_ENDIAN + unsigned control_data1:4; + unsigned version:3; + unsigned sv:1; +#endif + uint8_t status; + uint16_t control_frame_length; + uint64_t stream_id; + uint8_t payload[0]; +} __attribute__ ((__packed__)); + +#define SPA_AVBTP_PACKET_CC_SET_SUBTYPE(p,v) ((p)->subtype = (v)) +#define SPA_AVBTP_PACKET_CC_SET_SV(p,v) ((p)->sv = (v)) +#define SPA_AVBTP_PACKET_CC_SET_VERSION(p,v) ((p)->version = (v)) +#define SPA_AVBTP_PACKET_CC_SET_STREAM_ID(p,v) ((p)->stream_id = htobe64(v)) +#define SPA_AVBTP_PACKET_CC_SET_STATUS(p,v) ((p)->status = (v)) +#define SPA_AVBTP_PACKET_CC_SET_LENGTH(p,v) ((p)->control_frame_length = htons(v)) + +#define SPA_AVBTP_PACKET_CC_GET_SUBTYPE(p) ((p)->subtype) +#define SPA_AVBTP_PACKET_CC_GET_SV(p) ((p)->sv) +#define SPA_AVBTP_PACKET_CC_GET_VERSION(p) ((p)->version) +#define SPA_AVBTP_PACKET_CC_GET_STREAM_ID(p) be64toh((p)->stream_id) +#define SPA_AVBTP_PACKET_CC_GET_STATUS(p) ((p)->status) +#define SPA_AVBTP_PACKET_CC_GET_LENGTH(p) ntohs((p)->control_frame_length) + +/* AAF */ +struct spa_avbtp_packet_aaf { + uint8_t subtype; +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned sv:1; + unsigned version:3; + unsigned mr:1; + unsigned _r1:1; + unsigned gv:1; + unsigned tv:1; + + uint8_t seq_num; + + unsigned _r2:7; + unsigned tu:1; +#elif __BYTE_ORDER == __LITTLE_ENDIAN + unsigned tv:1; + unsigned gv:1; + unsigned _r1:1; + unsigned mr:1; + unsigned version:3; + unsigned sv:1; + + uint8_t seq_num; + + unsigned tu:1; + unsigned _r2:7; +#endif + uint64_t stream_id; + uint32_t timestamp; +#define SPA_AVBTP_AAF_FORMAT_USER 0x00 +#define SPA_AVBTP_AAF_FORMAT_FLOAT_32BIT 0x01 +#define SPA_AVBTP_AAF_FORMAT_INT_32BIT 0x02 +#define SPA_AVBTP_AAF_FORMAT_INT_24BIT 0x03 +#define SPA_AVBTP_AAF_FORMAT_INT_16BIT 0x04 +#define SPA_AVBTP_AAF_FORMAT_AES3_32BIT 0x05 + uint8_t format; + +#define SPA_AVBTP_AAF_PCM_NSR_USER 0x00 +#define SPA_AVBTP_AAF_PCM_NSR_8KHZ 0x01 +#define SPA_AVBTP_AAF_PCM_NSR_16KHZ 0x02 +#define SPA_AVBTP_AAF_PCM_NSR_32KHZ 0x03 +#define SPA_AVBTP_AAF_PCM_NSR_44_1KHZ 0x04 +#define SPA_AVBTP_AAF_PCM_NSR_48KHZ 0x05 +#define SPA_AVBTP_AAF_PCM_NSR_88_2KHZ 0x06 +#define SPA_AVBTP_AAF_PCM_NSR_96KHZ 0x07 +#define SPA_AVBTP_AAF_PCM_NSR_176_4KHZ 0x08 +#define SPA_AVBTP_AAF_PCM_NSR_192KHZ 0x09 +#define SPA_AVBTP_AAF_PCM_NSR_24KHZ 0x0A +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned nsr:4; + unsigned _r3:4; +#elif __BYTE_ORDER == __LITTLE_ENDIAN + unsigned _r3:4; + unsigned nsr:4; +#endif + uint8_t chan_per_frame; + uint8_t bit_depth; + uint16_t data_len; + +#define SPA_AVBTP_AAF_PCM_SP_NORMAL 0x00 +#define SPA_AVBTP_AAF_PCM_SP_SPARSE 0x01 +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned _r4:3; + unsigned sp:1; + unsigned event:4; +#elif __BYTE_ORDER == __LITTLE_ENDIAN + unsigned event:4; + unsigned sp:1; + unsigned _r4:3; +#endif + uint8_t _r5; + uint8_t payload[0]; +} __attribute__ ((__packed__)); + +#define SPA_AVBTP_PACKET_AAF_SET_SUBTYPE(p,v) ((p)->subtype = (v)) +#define SPA_AVBTP_PACKET_AAF_SET_SV(p,v) ((p)->sv = (v)) +#define SPA_AVBTP_PACKET_AAF_SET_VERSION(p,v) ((p)->version = (v)) +#define SPA_AVBTP_PACKET_AAF_SET_MR(p,v) ((p)->mr = (v)) +#define SPA_AVBTP_PACKET_AAF_SET_GV(p,v) ((p)->gv = (v)) +#define SPA_AVBTP_PACKET_AAF_SET_TV(p,v) ((p)->tv = (v)) +#define SPA_AVBTP_PACKET_AAF_SET_SEQ_NUM(p,v) ((p)->seq_num = (v)) +#define SPA_AVBTP_PACKET_AAF_SET_TU(p,v) ((p)->tu = (v)) +#define SPA_AVBTP_PACKET_AAF_SET_STREAM_ID(p,v) ((p)->stream_id = htobe64(v)) +#define SPA_AVBTP_PACKET_AAF_SET_TIMESTAMP(p,v) ((p)->timestamp = htonl(v)) +#define SPA_AVBTP_PACKET_AAF_SET_DATA_LEN(p,v) ((p)->data_len = htons(v)) +#define SPA_AVBTP_PACKET_AAF_SET_FORMAT(p,v) ((p)->format = (v)) +#define SPA_AVBTP_PACKET_AAF_SET_NSR(p,v) ((p)->nsr = (v)) +#define SPA_AVBTP_PACKET_AAF_SET_CHAN_PER_FRAME(p,v) ((p)->chan_per_frame = (v)) +#define SPA_AVBTP_PACKET_AAF_SET_BIT_DEPTH(p,v) ((p)->bit_depth = (v)) +#define SPA_AVBTP_PACKET_AAF_SET_SP(p,v) ((p)->sp = (v)) +#define SPA_AVBTP_PACKET_AAF_SET_EVENT(p,v) ((p)->event = (v)) + +#define SPA_AVBTP_PACKET_AAF_GET_SUBTYPE(p) ((p)->subtype) +#define SPA_AVBTP_PACKET_AAF_GET_SV(p) ((p)->sv) +#define SPA_AVBTP_PACKET_AAF_GET_VERSION(p) ((p)->version) +#define SPA_AVBTP_PACKET_AAF_GET_MR(p) ((p)->mr) +#define SPA_AVBTP_PACKET_AAF_GET_GV(p) ((p)->gv) +#define SPA_AVBTP_PACKET_AAF_GET_TV(p) ((p)->tv) +#define SPA_AVBTP_PACKET_AAF_GET_SEQ_NUM(p) ((p)->seq_num) +#define SPA_AVBTP_PACKET_AAF_GET_TU(p) ((p)->tu) +#define SPA_AVBTP_PACKET_AAF_GET_STREAM_ID(p) be64toh((p)->stream_id) +#define SPA_AVBTP_PACKET_AAF_GET_TIMESTAMP(p) ntohl((p)->timestamp) +#define SPA_AVBTP_PACKET_AAF_GET_DATA_LEN(p) ntohs((p)->data_len) +#define SPA_AVBTP_PACKET_AAF_GET_FORMAT(p) ((p)->format) +#define SPA_AVBTP_PACKET_AAF_GET_NSR(p) ((p)->nsr) +#define SPA_AVBTP_PACKET_AAF_GET_CHAN_PER_FRAME(p) ((p)->chan_per_frame) +#define SPA_AVBTP_PACKET_AAF_GET_BIT_DEPTH(p) ((p)->bit_depth) +#define SPA_AVBTP_PACKET_AAF_GET_SP(p) ((p)->sp) +#define SPA_AVBTP_PACKET_AAF_GET_EVENT(p) ((p)->event) + + +#endif /* SPA_AVB_PACKETS_H */ |