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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /media/ffvpx/libavcodec/avpacket.c
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'media/ffvpx/libavcodec/avpacket.c')
-rw-r--r--media/ffvpx/libavcodec/avpacket.c664
1 files changed, 664 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/avpacket.c b/media/ffvpx/libavcodec/avpacket.c
new file mode 100644
index 000000000..921868923
--- /dev/null
+++ b/media/ffvpx/libavcodec/avpacket.c
@@ -0,0 +1,664 @@
+/*
+ * 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/common.h"
+#include "libavutil/internal.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/mem.h"
+#include "avcodec.h"
+#include "bytestream.h"
+#include "internal.h"
+
+void av_init_packet(AVPacket *pkt)
+{
+ pkt->pts = AV_NOPTS_VALUE;
+ pkt->dts = AV_NOPTS_VALUE;
+ pkt->pos = -1;
+ pkt->duration = 0;
+#if FF_API_CONVERGENCE_DURATION
+FF_DISABLE_DEPRECATION_WARNINGS
+ pkt->convergence_duration = 0;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+ pkt->flags = 0;
+ pkt->stream_index = 0;
+ pkt->buf = NULL;
+ pkt->side_data = NULL;
+ pkt->side_data_elems = 0;
+}
+
+AVPacket *av_packet_alloc(void)
+{
+ AVPacket *pkt = av_mallocz(sizeof(AVPacket));
+ if (!pkt)
+ return pkt;
+
+ av_packet_unref(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;
+
+ av_init_packet(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 -1;
+
+ 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 -1;
+ }
+
+ if (new_size + data_offset > pkt->buf->size) {
+ int 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);
+ 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;
+}
+
+#if FF_API_AVPACKET_OLD_API
+FF_DISABLE_DEPRECATION_WARNINGS
+#define ALLOC_MALLOC(data, size) data = av_malloc(size)
+#define ALLOC_BUF(data, size) \
+do { \
+ av_buffer_realloc(&pkt->buf, size); \
+ data = pkt->buf ? pkt->buf->data : NULL; \
+} while (0)
+
+#define DUP_DATA(dst, src, size, padding, ALLOC) \
+ do { \
+ void *data; \
+ if (padding) { \
+ if ((unsigned)(size) > \
+ (unsigned)(size) + AV_INPUT_BUFFER_PADDING_SIZE) \
+ goto failed_alloc; \
+ ALLOC(data, size + AV_INPUT_BUFFER_PADDING_SIZE); \
+ } else { \
+ ALLOC(data, size); \
+ } \
+ if (!data) \
+ goto failed_alloc; \
+ memcpy(data, src, size); \
+ if (padding) \
+ memset((uint8_t *)data + size, 0, \
+ AV_INPUT_BUFFER_PADDING_SIZE); \
+ dst = data; \
+ } while (0)
+
+/* Makes duplicates of data, side_data, but does not copy any other fields */
+static int copy_packet_data(AVPacket *pkt, const AVPacket *src, int dup)
+{
+ pkt->data = NULL;
+ pkt->side_data = NULL;
+ if (pkt->buf) {
+ AVBufferRef *ref = av_buffer_ref(src->buf);
+ if (!ref)
+ return AVERROR(ENOMEM);
+ pkt->buf = ref;
+ pkt->data = ref->data;
+ } else {
+ DUP_DATA(pkt->data, src->data, pkt->size, 1, ALLOC_BUF);
+ }
+ if (pkt->side_data_elems && dup)
+ pkt->side_data = src->side_data;
+ if (pkt->side_data_elems && !dup) {
+ return av_copy_packet_side_data(pkt, src);
+ }
+ return 0;
+
+failed_alloc:
+ av_packet_unref(pkt);
+ return AVERROR(ENOMEM);
+}
+
+int av_copy_packet_side_data(AVPacket *pkt, const AVPacket *src)
+{
+ if (src->side_data_elems) {
+ int i;
+ DUP_DATA(pkt->side_data, src->side_data,
+ src->side_data_elems * sizeof(*src->side_data), 0, ALLOC_MALLOC);
+ if (src != pkt) {
+ memset(pkt->side_data, 0,
+ src->side_data_elems * sizeof(*src->side_data));
+ }
+ for (i = 0; i < src->side_data_elems; i++) {
+ DUP_DATA(pkt->side_data[i].data, src->side_data[i].data,
+ src->side_data[i].size, 1, ALLOC_MALLOC);
+ pkt->side_data[i].size = src->side_data[i].size;
+ pkt->side_data[i].type = src->side_data[i].type;
+ }
+ }
+ pkt->side_data_elems = src->side_data_elems;
+ return 0;
+
+failed_alloc:
+ av_packet_unref(pkt);
+ return AVERROR(ENOMEM);
+}
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+int av_dup_packet(AVPacket *pkt)
+{
+ AVPacket tmp_pkt;
+
+ if (!pkt->buf && pkt->data) {
+ tmp_pkt = *pkt;
+ return copy_packet_data(pkt, &tmp_pkt, 1);
+ }
+ return 0;
+}
+
+int av_copy_packet(AVPacket *dst, const AVPacket *src)
+{
+ *dst = *src;
+ return copy_packet_data(dst, src, 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;
+}
+
+#if FF_API_AVPACKET_OLD_API
+FF_DISABLE_DEPRECATION_WARNINGS
+void av_free_packet(AVPacket *pkt)
+{
+ if (pkt) {
+ if (pkt->buf)
+ av_buffer_unref(&pkt->buf);
+ pkt->data = NULL;
+ pkt->size = 0;
+
+ av_packet_free_side_data(pkt);
+ }
+}
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+int av_packet_add_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
+ uint8_t *data, size_t size)
+{
+ int elems = pkt->side_data_elems;
+
+ if ((unsigned)elems + 1 > INT_MAX / sizeof(*pkt->side_data))
+ return AVERROR(ERANGE);
+
+ pkt->side_data = av_realloc(pkt->side_data,
+ (elems + 1) * sizeof(*pkt->side_data));
+ if (!pkt->side_data)
+ return AVERROR(ENOMEM);
+
+ 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,
+ int size)
+{
+ int ret;
+ uint8_t *data;
+
+ if ((unsigned)size > INT_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(AVPacket *pkt, enum AVPacketSideDataType type,
+ int *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;
+ }
+ }
+ 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_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";
+ }
+ return NULL;
+}
+
+#define FF_MERGE_MARKER 0x8c4d9d108e25e9feULL
+
+int av_packet_merge_side_data(AVPacket *pkt){
+ if(pkt->side_data_elems){
+ AVBufferRef *buf;
+ int i;
+ uint8_t *p;
+ uint64_t size= pkt->size + 8LL + AV_INPUT_BUFFER_PADDING_SIZE;
+ AVPacket old= *pkt;
+ for (i=0; i<old.side_data_elems; i++) {
+ size += old.side_data[i].size + 5LL;
+ }
+ if (size > INT_MAX)
+ return AVERROR(EINVAL);
+ buf = av_buffer_alloc(size);
+ if (!buf)
+ return AVERROR(ENOMEM);
+ pkt->buf = buf;
+ pkt->data = p = buf->data;
+ pkt->size = size - AV_INPUT_BUFFER_PADDING_SIZE;
+ bytestream_put_buffer(&p, old.data, old.size);
+ for (i=old.side_data_elems-1; i>=0; i--) {
+ bytestream_put_buffer(&p, old.side_data[i].data, old.side_data[i].size);
+ bytestream_put_be32(&p, old.side_data[i].size);
+ *p++ = old.side_data[i].type | ((i==old.side_data_elems-1)*128);
+ }
+ bytestream_put_be64(&p, FF_MERGE_MARKER);
+ av_assert0(p-pkt->data == pkt->size);
+ memset(p, 0, AV_INPUT_BUFFER_PADDING_SIZE);
+ av_packet_unref(&old);
+ pkt->side_data_elems = 0;
+ pkt->side_data = NULL;
+ return 1;
+ }
+ return 0;
+}
+
+int av_packet_split_side_data(AVPacket *pkt){
+ if (!pkt->side_data_elems && pkt->size >12 && AV_RB64(pkt->data + pkt->size - 8) == FF_MERGE_MARKER){
+ int i;
+ unsigned int size;
+ uint8_t *p;
+
+ p = pkt->data + pkt->size - 8 - 5;
+ for (i=1; ; i++){
+ size = AV_RB32(p);
+ if (size>INT_MAX - 5 || p - pkt->data < size)
+ return 0;
+ if (p[4]&128)
+ break;
+ if (p - pkt->data < size + 5)
+ return 0;
+ p-= size+5;
+ }
+
+ pkt->side_data = av_malloc_array(i, sizeof(*pkt->side_data));
+ if (!pkt->side_data)
+ return AVERROR(ENOMEM);
+
+ p= pkt->data + pkt->size - 8 - 5;
+ for (i=0; ; i++){
+ size= AV_RB32(p);
+ av_assert0(size<=INT_MAX - 5 && p - pkt->data >= size);
+ pkt->side_data[i].data = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
+ pkt->side_data[i].size = size;
+ pkt->side_data[i].type = p[4]&127;
+ if (!pkt->side_data[i].data)
+ return AVERROR(ENOMEM);
+ memcpy(pkt->side_data[i].data, p-size, size);
+ pkt->size -= size + 5;
+ if(p[4]&128)
+ break;
+ p-= size+5;
+ }
+ pkt->size -= 8;
+ pkt->side_data_elems = i+1;
+ return 1;
+ }
+ return 0;
+}
+
+uint8_t *av_packet_pack_dictionary(AVDictionary *dict, int *size)
+{
+ AVDictionaryEntry *t = NULL;
+ uint8_t *data = NULL;
+ *size = 0;
+
+ if (!dict)
+ return NULL;
+
+ while ((t = av_dict_get(dict, "", t, AV_DICT_IGNORE_SUFFIX))) {
+ const size_t keylen = strlen(t->key);
+ const size_t valuelen = strlen(t->value);
+ const size_t new_size = *size + keylen + 1 + valuelen + 1;
+ uint8_t *const new_data = av_realloc(data, new_size);
+
+ if (!new_data)
+ goto fail;
+ data = new_data;
+ if (new_size > INT_MAX)
+ goto fail;
+
+ memcpy(data + *size, t->key, keylen + 1);
+ memcpy(data + *size + keylen + 1, t->value, valuelen + 1);
+
+ *size = new_size;
+ }
+
+ return data;
+
+fail:
+ av_freep(&data);
+ *size = 0;
+ return NULL;
+}
+
+int av_packet_unpack_dictionary(const uint8_t *data, int size, AVDictionary **dict)
+{
+ const uint8_t *end = data + size;
+ int ret = 0;
+
+ if (!dict || !data || !size)
+ return ret;
+ 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)
+ return AVERROR_INVALIDDATA;
+
+ ret = av_dict_set(dict, key, val, 0);
+ if (ret < 0)
+ break;
+ data = val + strlen(val) + 1;
+ }
+
+ return ret;
+}
+
+int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
+ int 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;
+
+ dst->pts = src->pts;
+ dst->dts = src->dts;
+ dst->pos = src->pos;
+ dst->duration = src->duration;
+#if FF_API_CONVERGENCE_DURATION
+FF_DISABLE_DEPRECATION_WARNINGS
+ dst->convergence_duration = src->convergence_duration;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+ dst->flags = src->flags;
+ dst->stream_index = src->stream_index;
+
+ for (i = 0; i < src->side_data_elems; i++) {
+ enum AVPacketSideDataType type = src->side_data[i].type;
+ int 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_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->buf);
+ av_init_packet(pkt);
+ pkt->data = NULL;
+ pkt->size = 0;
+}
+
+int av_packet_ref(AVPacket *dst, const AVPacket *src)
+{
+ int ret;
+
+ ret = av_packet_copy_props(dst, src);
+ if (ret < 0)
+ return ret;
+
+ if (!src->buf) {
+ ret = packet_alloc(&dst->buf, src->size);
+ if (ret < 0)
+ goto fail;
+ 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_free_side_data(dst);
+ return ret;
+}
+
+AVPacket *av_packet_clone(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;
+ av_init_packet(src);
+ src->data = NULL;
+ src->size = 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);
+#if FF_API_CONVERGENCE_DURATION
+FF_DISABLE_DEPRECATION_WARNINGS
+ if (pkt->convergence_duration > 0)
+ pkt->convergence_duration = av_rescale_q(pkt->convergence_duration, src_tb, dst_tb);
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+}
+
+int ff_side_data_set_encoder_stats(AVPacket *pkt, int quality, int64_t *error, int error_count, int pict_type)
+{
+ uint8_t *side_data;
+ int 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;
+}