diff options
Diffstat (limited to '')
| -rw-r--r-- | media/ffvpx/libavcodec/avpacket.c | 751 |
1 files changed, 0 insertions, 751 deletions
diff --git a/media/ffvpx/libavcodec/avpacket.c b/media/ffvpx/libavcodec/avpacket.c deleted file mode 100644 index 0f8c9b77ae..0000000000 --- a/media/ffvpx/libavcodec/avpacket.c +++ /dev/null @@ -1,751 +0,0 @@ -/* - * AVPacket functions for libavcodec - * Copyright (c) 2000, 2001, 2002 Fabrice Bellard - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <string.h> - -#include "libavutil/avassert.h" -#include "libavutil/avutil.h" -#include "libavutil/intreadwrite.h" -#include "libavutil/mathematics.h" -#include "libavutil/mem.h" -#include "libavutil/rational.h" - -#include "defs.h" -#include "packet.h" -#include "packet_internal.h" - -#if FF_API_INIT_PACKET -void av_init_packet(AVPacket *pkt) -{ - pkt->pts = AV_NOPTS_VALUE; - pkt->dts = AV_NOPTS_VALUE; - pkt->pos = -1; - pkt->duration = 0; - pkt->flags = 0; - pkt->stream_index = 0; - pkt->buf = NULL; - pkt->side_data = NULL; - pkt->side_data_elems = 0; - pkt->opaque = NULL; - pkt->opaque_ref = NULL; - pkt->time_base = av_make_q(0, 1); -} -#endif - -static void get_packet_defaults(AVPacket *pkt) -{ - memset(pkt, 0, sizeof(*pkt)); - - pkt->pts = AV_NOPTS_VALUE; - pkt->dts = AV_NOPTS_VALUE; - pkt->pos = -1; - pkt->time_base = av_make_q(0, 1); -} - -AVPacket *av_packet_alloc(void) -{ - AVPacket *pkt = av_malloc(sizeof(AVPacket)); - if (!pkt) - return pkt; - - get_packet_defaults(pkt); - - return pkt; -} - -void av_packet_free(AVPacket **pkt) -{ - if (!pkt || !*pkt) - return; - - av_packet_unref(*pkt); - av_freep(pkt); -} - -static int packet_alloc(AVBufferRef **buf, int size) -{ - int ret; - if (size < 0 || size >= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE) - return AVERROR(EINVAL); - - ret = av_buffer_realloc(buf, size + AV_INPUT_BUFFER_PADDING_SIZE); - if (ret < 0) - return ret; - - memset((*buf)->data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE); - - return 0; -} - -int av_new_packet(AVPacket *pkt, int size) -{ - AVBufferRef *buf = NULL; - int ret = packet_alloc(&buf, size); - if (ret < 0) - return ret; - - get_packet_defaults(pkt); - pkt->buf = buf; - pkt->data = buf->data; - pkt->size = size; - - return 0; -} - -void av_shrink_packet(AVPacket *pkt, int size) -{ - if (pkt->size <= size) - return; - pkt->size = size; - memset(pkt->data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE); -} - -int av_grow_packet(AVPacket *pkt, int grow_by) -{ - int new_size; - av_assert0((unsigned)pkt->size <= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE); - if ((unsigned)grow_by > - INT_MAX - (pkt->size + AV_INPUT_BUFFER_PADDING_SIZE)) - return AVERROR(ENOMEM); - - new_size = pkt->size + grow_by + AV_INPUT_BUFFER_PADDING_SIZE; - if (pkt->buf) { - size_t data_offset; - uint8_t *old_data = pkt->data; - if (pkt->data == NULL) { - data_offset = 0; - pkt->data = pkt->buf->data; - } else { - data_offset = pkt->data - pkt->buf->data; - if (data_offset > INT_MAX - new_size) - return AVERROR(ENOMEM); - } - - if (new_size + data_offset > pkt->buf->size || - !av_buffer_is_writable(pkt->buf)) { - int ret; - - // allocate slightly more than requested to avoid excessive - // reallocations - if (new_size + data_offset < INT_MAX - new_size/16) - new_size += new_size/16; - - ret = av_buffer_realloc(&pkt->buf, new_size + data_offset); - if (ret < 0) { - pkt->data = old_data; - return ret; - } - pkt->data = pkt->buf->data + data_offset; - } - } else { - pkt->buf = av_buffer_alloc(new_size); - if (!pkt->buf) - return AVERROR(ENOMEM); - if (pkt->size > 0) - memcpy(pkt->buf->data, pkt->data, pkt->size); - pkt->data = pkt->buf->data; - } - pkt->size += grow_by; - memset(pkt->data + pkt->size, 0, AV_INPUT_BUFFER_PADDING_SIZE); - - return 0; -} - -int av_packet_from_data(AVPacket *pkt, uint8_t *data, int size) -{ - if (size >= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE) - return AVERROR(EINVAL); - - pkt->buf = av_buffer_create(data, size + AV_INPUT_BUFFER_PADDING_SIZE, - av_buffer_default_free, NULL, 0); - if (!pkt->buf) - return AVERROR(ENOMEM); - - pkt->data = data; - pkt->size = size; - - return 0; -} - -void av_packet_free_side_data(AVPacket *pkt) -{ - int i; - for (i = 0; i < pkt->side_data_elems; i++) - av_freep(&pkt->side_data[i].data); - av_freep(&pkt->side_data); - pkt->side_data_elems = 0; -} - -int av_packet_add_side_data(AVPacket *pkt, enum AVPacketSideDataType type, - uint8_t *data, size_t size) -{ - AVPacketSideData *tmp; - int i, elems = pkt->side_data_elems; - - for (i = 0; i < elems; i++) { - AVPacketSideData *sd = &pkt->side_data[i]; - - if (sd->type == type) { - av_free(sd->data); - sd->data = data; - sd->size = size; - return 0; - } - } - - if ((unsigned)elems + 1 > AV_PKT_DATA_NB) - return AVERROR(ERANGE); - - tmp = av_realloc(pkt->side_data, (elems + 1) * sizeof(*tmp)); - if (!tmp) - return AVERROR(ENOMEM); - - pkt->side_data = tmp; - pkt->side_data[elems].data = data; - pkt->side_data[elems].size = size; - pkt->side_data[elems].type = type; - pkt->side_data_elems++; - - return 0; -} - - -uint8_t *av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type, - size_t size) -{ - int ret; - uint8_t *data; - - if (size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) - return NULL; - data = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE); - if (!data) - return NULL; - - ret = av_packet_add_side_data(pkt, type, data, size); - if (ret < 0) { - av_freep(&data); - return NULL; - } - - return data; -} - -uint8_t *av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type, - size_t *size) -{ - int i; - - for (i = 0; i < pkt->side_data_elems; i++) { - if (pkt->side_data[i].type == type) { - if (size) - *size = pkt->side_data[i].size; - return pkt->side_data[i].data; - } - } - if (size) - *size = 0; - return NULL; -} - -const char *av_packet_side_data_name(enum AVPacketSideDataType type) -{ - switch(type) { - case AV_PKT_DATA_PALETTE: return "Palette"; - case AV_PKT_DATA_NEW_EXTRADATA: return "New Extradata"; - case AV_PKT_DATA_PARAM_CHANGE: return "Param Change"; - case AV_PKT_DATA_H263_MB_INFO: return "H263 MB Info"; - case AV_PKT_DATA_REPLAYGAIN: return "Replay Gain"; - case AV_PKT_DATA_DISPLAYMATRIX: return "Display Matrix"; - case AV_PKT_DATA_STEREO3D: return "Stereo 3D"; - case AV_PKT_DATA_AUDIO_SERVICE_TYPE: return "Audio Service Type"; - case AV_PKT_DATA_QUALITY_STATS: return "Quality stats"; - case AV_PKT_DATA_FALLBACK_TRACK: return "Fallback track"; - case AV_PKT_DATA_CPB_PROPERTIES: return "CPB properties"; - case AV_PKT_DATA_SKIP_SAMPLES: return "Skip Samples"; - case AV_PKT_DATA_JP_DUALMONO: return "JP Dual Mono"; - case AV_PKT_DATA_STRINGS_METADATA: return "Strings Metadata"; - case AV_PKT_DATA_SUBTITLE_POSITION: return "Subtitle Position"; - case AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL: return "Matroska BlockAdditional"; - case AV_PKT_DATA_WEBVTT_IDENTIFIER: return "WebVTT ID"; - case AV_PKT_DATA_WEBVTT_SETTINGS: return "WebVTT Settings"; - case AV_PKT_DATA_METADATA_UPDATE: return "Metadata Update"; - case AV_PKT_DATA_MPEGTS_STREAM_ID: return "MPEGTS Stream ID"; - case AV_PKT_DATA_MASTERING_DISPLAY_METADATA: return "Mastering display metadata"; - case AV_PKT_DATA_CONTENT_LIGHT_LEVEL: return "Content light level metadata"; - case AV_PKT_DATA_SPHERICAL: return "Spherical Mapping"; - case AV_PKT_DATA_A53_CC: return "A53 Closed Captions"; - case AV_PKT_DATA_ENCRYPTION_INIT_INFO: return "Encryption initialization data"; - case AV_PKT_DATA_ENCRYPTION_INFO: return "Encryption info"; - case AV_PKT_DATA_AFD: return "Active Format Description data"; - case AV_PKT_DATA_PRFT: return "Producer Reference Time"; - case AV_PKT_DATA_ICC_PROFILE: return "ICC Profile"; - case AV_PKT_DATA_DOVI_CONF: return "DOVI configuration record"; - case AV_PKT_DATA_S12M_TIMECODE: return "SMPTE ST 12-1:2014 timecode"; - case AV_PKT_DATA_DYNAMIC_HDR10_PLUS: return "HDR10+ Dynamic Metadata (SMPTE 2094-40)"; - case AV_PKT_DATA_IAMF_MIX_GAIN_PARAM: return "IAMF Mix Gain Parameter Data"; - case AV_PKT_DATA_IAMF_DEMIXING_INFO_PARAM: return "IAMF Demixing Info Parameter Data"; - case AV_PKT_DATA_IAMF_RECON_GAIN_INFO_PARAM: return "IAMF Recon Gain Info Parameter Data"; - } - return NULL; -} - -uint8_t *av_packet_pack_dictionary(AVDictionary *dict, size_t *size) -{ - uint8_t *data = NULL; - *size = 0; - - if (!dict) - return NULL; - - for (int pass = 0; pass < 2; pass++) { - const AVDictionaryEntry *t = NULL; - size_t total_length = 0; - - while ((t = av_dict_iterate(dict, t))) { - for (int i = 0; i < 2; i++) { - const char *str = i ? t->value : t->key; - const size_t len = strlen(str) + 1; - - if (pass) - memcpy(data + total_length, str, len); - else if (len > SIZE_MAX - total_length) - return NULL; - total_length += len; - } - } - if (pass) - break; - data = av_malloc(total_length); - if (!data) - return NULL; - *size = total_length; - } - - return data; -} - -int av_packet_unpack_dictionary(const uint8_t *data, size_t size, - AVDictionary **dict) -{ - const uint8_t *end; - int ret; - - if (!dict || !data || !size) - return 0; - end = data + size; - if (size && end[-1]) - return AVERROR_INVALIDDATA; - while (data < end) { - const uint8_t *key = data; - const uint8_t *val = data + strlen(key) + 1; - - if (val >= end || !*key) - return AVERROR_INVALIDDATA; - - ret = av_dict_set(dict, key, val, 0); - if (ret < 0) - return ret; - data = val + strlen(val) + 1; - } - - return 0; -} - -int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type, - size_t size) -{ - int i; - - for (i = 0; i < pkt->side_data_elems; i++) { - if (pkt->side_data[i].type == type) { - if (size > pkt->side_data[i].size) - return AVERROR(ENOMEM); - pkt->side_data[i].size = size; - return 0; - } - } - return AVERROR(ENOENT); -} - -int av_packet_copy_props(AVPacket *dst, const AVPacket *src) -{ - int i, ret; - - dst->pts = src->pts; - dst->dts = src->dts; - dst->pos = src->pos; - dst->duration = src->duration; - dst->flags = src->flags; - dst->stream_index = src->stream_index; - dst->opaque = src->opaque; - dst->time_base = src->time_base; - dst->opaque_ref = NULL; - dst->side_data = NULL; - dst->side_data_elems = 0; - - ret = av_buffer_replace(&dst->opaque_ref, src->opaque_ref); - if (ret < 0) - return ret; - - for (i = 0; i < src->side_data_elems; i++) { - enum AVPacketSideDataType type = src->side_data[i].type; - size_t size = src->side_data[i].size; - uint8_t *src_data = src->side_data[i].data; - uint8_t *dst_data = av_packet_new_side_data(dst, type, size); - - if (!dst_data) { - av_buffer_unref(&dst->opaque_ref); - av_packet_free_side_data(dst); - return AVERROR(ENOMEM); - } - memcpy(dst_data, src_data, size); - } - - return 0; -} - -void av_packet_unref(AVPacket *pkt) -{ - av_packet_free_side_data(pkt); - av_buffer_unref(&pkt->opaque_ref); - av_buffer_unref(&pkt->buf); - get_packet_defaults(pkt); -} - -int av_packet_ref(AVPacket *dst, const AVPacket *src) -{ - int ret; - - dst->buf = NULL; - - ret = av_packet_copy_props(dst, src); - if (ret < 0) - goto fail; - - if (!src->buf) { - ret = packet_alloc(&dst->buf, src->size); - if (ret < 0) - goto fail; - av_assert1(!src->size || src->data); - if (src->size) - memcpy(dst->buf->data, src->data, src->size); - - dst->data = dst->buf->data; - } else { - dst->buf = av_buffer_ref(src->buf); - if (!dst->buf) { - ret = AVERROR(ENOMEM); - goto fail; - } - dst->data = src->data; - } - - dst->size = src->size; - - return 0; -fail: - av_packet_unref(dst); - return ret; -} - -AVPacket *av_packet_clone(const AVPacket *src) -{ - AVPacket *ret = av_packet_alloc(); - - if (!ret) - return ret; - - if (av_packet_ref(ret, src)) - av_packet_free(&ret); - - return ret; -} - -void av_packet_move_ref(AVPacket *dst, AVPacket *src) -{ - *dst = *src; - get_packet_defaults(src); -} - -int av_packet_make_refcounted(AVPacket *pkt) -{ - int ret; - - if (pkt->buf) - return 0; - - ret = packet_alloc(&pkt->buf, pkt->size); - if (ret < 0) - return ret; - av_assert1(!pkt->size || pkt->data); - if (pkt->size) - memcpy(pkt->buf->data, pkt->data, pkt->size); - - pkt->data = pkt->buf->data; - - return 0; -} - -int av_packet_make_writable(AVPacket *pkt) -{ - AVBufferRef *buf = NULL; - int ret; - - if (pkt->buf && av_buffer_is_writable(pkt->buf)) - return 0; - - ret = packet_alloc(&buf, pkt->size); - if (ret < 0) - return ret; - av_assert1(!pkt->size || pkt->data); - if (pkt->size) - memcpy(buf->data, pkt->data, pkt->size); - - av_buffer_unref(&pkt->buf); - pkt->buf = buf; - pkt->data = buf->data; - - return 0; -} - -void av_packet_rescale_ts(AVPacket *pkt, AVRational src_tb, AVRational dst_tb) -{ - if (pkt->pts != AV_NOPTS_VALUE) - pkt->pts = av_rescale_q(pkt->pts, src_tb, dst_tb); - if (pkt->dts != AV_NOPTS_VALUE) - pkt->dts = av_rescale_q(pkt->dts, src_tb, dst_tb); - if (pkt->duration > 0) - pkt->duration = av_rescale_q(pkt->duration, src_tb, dst_tb); -} - -int avpriv_packet_list_put(PacketList *packet_buffer, - AVPacket *pkt, - int (*copy)(AVPacket *dst, const AVPacket *src), - int flags) -{ - PacketListEntry *pktl = av_malloc(sizeof(*pktl)); - int ret; - - if (!pktl) - return AVERROR(ENOMEM); - - if (copy) { - get_packet_defaults(&pktl->pkt); - ret = copy(&pktl->pkt, pkt); - if (ret < 0) { - av_free(pktl); - return ret; - } - } else { - ret = av_packet_make_refcounted(pkt); - if (ret < 0) { - av_free(pktl); - return ret; - } - av_packet_move_ref(&pktl->pkt, pkt); - } - - pktl->next = NULL; - - if (packet_buffer->head) - packet_buffer->tail->next = pktl; - else - packet_buffer->head = pktl; - - /* Add the packet in the buffered packet list. */ - packet_buffer->tail = pktl; - return 0; -} - -int avpriv_packet_list_get(PacketList *pkt_buffer, - AVPacket *pkt) -{ - PacketListEntry *pktl = pkt_buffer->head; - if (!pktl) - return AVERROR(EAGAIN); - *pkt = pktl->pkt; - pkt_buffer->head = pktl->next; - if (!pkt_buffer->head) - pkt_buffer->tail = NULL; - av_freep(&pktl); - return 0; -} - -void avpriv_packet_list_free(PacketList *pkt_buf) -{ - PacketListEntry *tmp = pkt_buf->head; - - while (tmp) { - PacketListEntry *pktl = tmp; - tmp = pktl->next; - av_packet_unref(&pktl->pkt); - av_freep(&pktl); - } - pkt_buf->head = pkt_buf->tail = NULL; -} - -int ff_side_data_set_encoder_stats(AVPacket *pkt, int quality, int64_t *error, int error_count, int pict_type) -{ - uint8_t *side_data; - size_t side_data_size; - int i; - - side_data = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_STATS, &side_data_size); - if (!side_data) { - side_data_size = 4+4+8*error_count; - side_data = av_packet_new_side_data(pkt, AV_PKT_DATA_QUALITY_STATS, - side_data_size); - } - - if (!side_data || side_data_size < 4+4+8*error_count) - return AVERROR(ENOMEM); - - AV_WL32(side_data , quality ); - side_data[4] = pict_type; - side_data[5] = error_count; - for (i = 0; i<error_count; i++) - AV_WL64(side_data+8 + 8*i , error[i]); - - return 0; -} - -int ff_side_data_set_prft(AVPacket *pkt, int64_t timestamp) -{ - AVProducerReferenceTime *prft; - uint8_t *side_data; - size_t side_data_size; - - side_data = av_packet_get_side_data(pkt, AV_PKT_DATA_PRFT, &side_data_size); - if (!side_data) { - side_data_size = sizeof(AVProducerReferenceTime); - side_data = av_packet_new_side_data(pkt, AV_PKT_DATA_PRFT, side_data_size); - } - - if (!side_data || side_data_size < sizeof(AVProducerReferenceTime)) - return AVERROR(ENOMEM); - - prft = (AVProducerReferenceTime *)side_data; - prft->wallclock = timestamp; - prft->flags = 0; - - return 0; -} - -const AVPacketSideData *av_packet_side_data_get(const AVPacketSideData *sd, int nb_sd, - enum AVPacketSideDataType type) -{ - for (int i = 0; i < nb_sd; i++) - if (sd[i].type == type) - return &sd[i]; - - return NULL; -} - -static AVPacketSideData *packet_side_data_add(AVPacketSideData **psd, int *pnb_sd, - enum AVPacketSideDataType type, - void *data, size_t size) -{ - AVPacketSideData *sd = *psd, *tmp; - int nb_sd = *pnb_sd; - - for (int i = 0; i < nb_sd; i++) { - if (sd[i].type != type) - continue; - - av_free(sd[i].data); - sd[i].data = data; - sd[i].size = size; - return &sd[i]; - } - - if (nb_sd == INT_MAX) - return NULL; - - tmp = av_realloc_array(sd, nb_sd + 1, sizeof(*tmp)); - if (!tmp) - return NULL; - - *psd = sd = tmp; - sd[nb_sd].type = type; - sd[nb_sd].data = data; - sd[nb_sd].size = size; - *pnb_sd = nb_sd + 1; - - return &sd[nb_sd]; -} - -AVPacketSideData *av_packet_side_data_add(AVPacketSideData **psd, int *pnb_sd, - enum AVPacketSideDataType type, - void *data, size_t size, int flags) -{ - return packet_side_data_add(psd, pnb_sd, type, data, size); -} - -AVPacketSideData *av_packet_side_data_new(AVPacketSideData **psd, int *pnb_sd, - enum AVPacketSideDataType type, - size_t size, int flags) -{ - AVPacketSideData *sd = NULL; - uint8_t *data; - - if (size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) - return NULL; - - data = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE); - if (!data) - return NULL; - memset(data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE); - - sd = packet_side_data_add(psd, pnb_sd, type, data, size); - if (!sd) - av_freep(&data); - - return sd; -} - -void av_packet_side_data_remove(AVPacketSideData *sd, int *pnb_sd, - enum AVPacketSideDataType type) -{ - int nb_sd = *pnb_sd; - - for (int i = nb_sd - 1; i >= 0; i--) { - if (sd[i].type != type) - continue; - av_free(sd[i].data); - sd[i] = sd[--nb_sd]; - break; - } - - *pnb_sd = nb_sd; -} - -void av_packet_side_data_free(AVPacketSideData **psd, int *pnb_sd) -{ - AVPacketSideData *sd = *psd; - int nb_sd = *pnb_sd; - - for (int i = 0; i < nb_sd; i++) - av_free(sd[i].data); - - av_freep(psd); - *pnb_sd = 0; -} |