double time_scale;
uint64_t default_duration;
uint64_t flag_default;
+ uint64_t flag_forced;
MatroskaTrackVideo video;
MatroskaTrackAudio audio;
EbmlList encodings;
int num_levels;
MatroskaLevel levels[EBML_MAX_DEPTH];
int level_up;
+ uint32_t current_id;
uint64_t time_scale;
double duration;
AVPacket *prev_pkt;
int done;
- int has_cluster_id;
/* What to skip before effectively reading a packet. */
int skip_to_keyframe;
{ MATROSKA_ID_TRACKDEFAULTDURATION, EBML_UINT, 0, offsetof(MatroskaTrack,default_duration) },
{ MATROSKA_ID_TRACKTIMECODESCALE, EBML_FLOAT,0, offsetof(MatroskaTrack,time_scale), {.f=1.0} },
{ MATROSKA_ID_TRACKFLAGDEFAULT, EBML_UINT, 0, offsetof(MatroskaTrack,flag_default), {.u=1} },
+ { MATROSKA_ID_TRACKFLAGFORCED, EBML_UINT, 0, offsetof(MatroskaTrack,flag_forced), {.u=0} },
{ MATROSKA_ID_TRACKVIDEO, EBML_NEST, 0, offsetof(MatroskaTrack,video), {.n=matroska_track_video} },
{ MATROSKA_ID_TRACKAUDIO, EBML_NEST, 0, offsetof(MatroskaTrack,audio), {.n=matroska_track_audio} },
{ MATROSKA_ID_TRACKCONTENTENCODINGS,EBML_NEST, 0, 0, {.n=matroska_track_encodings} },
{ MATROSKA_ID_TRACKFLAGENABLED, EBML_NONE },
- { MATROSKA_ID_TRACKFLAGFORCED, EBML_NONE },
{ MATROSKA_ID_TRACKFLAGLACING, EBML_NONE },
{ MATROSKA_ID_CODECNAME, EBML_NONE },
{ MATROSKA_ID_CODECDECODEALL, EBML_NONE },
{ MATROSKA_ID_TAGSTRING, EBML_UTF8, 0, offsetof(MatroskaTag,string) },
{ MATROSKA_ID_TAGLANG, EBML_STR, 0, offsetof(MatroskaTag,lang), {.s="und"} },
{ MATROSKA_ID_TAGDEFAULT, EBML_UINT, 0, offsetof(MatroskaTag,def) },
+ { MATROSKA_ID_TAGDEFAULT_BUG, EBML_UINT, 0, offsetof(MatroskaTag,def) },
{ MATROSKA_ID_SIMPLETAG, EBML_NEST, sizeof(MatroskaTag), offsetof(MatroskaTag,sub), {.n=matroska_simpletag} },
{ 0 }
};
{ MATROSKA_ID_CUES, EBML_NEST, 0, 0, {.n=matroska_index } },
{ MATROSKA_ID_TAGS, EBML_NEST, 0, 0, {.n=matroska_tags } },
{ MATROSKA_ID_SEEKHEAD, EBML_NEST, 0, 0, {.n=matroska_seekhead } },
- { MATROSKA_ID_CLUSTER, EBML_STOP, 0, offsetof(MatroskaDemuxContext,has_cluster_id) },
+ { MATROSKA_ID_CLUSTER, EBML_STOP },
{ 0 }
};
if (matroska->num_levels > 0) {
MatroskaLevel *level = &matroska->levels[matroska->num_levels - 1];
- if (pos - level->start >= level->length) {
+ if (pos - level->start >= level->length || matroska->current_id) {
matroska->num_levels--;
return 1;
}
* are supposed to be sub-elements which can be read separately.
* 0 is success, < 0 is failure.
*/
-static int ebml_read_master(MatroskaDemuxContext *matroska, int length)
+static int ebml_read_master(MatroskaDemuxContext *matroska, uint64_t length)
{
ByteIOContext *pb = matroska->ctx->pb;
MatroskaLevel *level;
for (i=0; syntax[i].id; i++)
if (id == syntax[i].id)
break;
+ if (!syntax[i].id && id == MATROSKA_ID_CLUSTER &&
+ matroska->num_levels > 0 &&
+ matroska->levels[matroska->num_levels-1].length == 0xffffffffffffff)
+ return 0; // we reached the end of an unknown size cluster
if (!syntax[i].id && id != EBML_ID_VOID && id != EBML_ID_CRC32)
av_log(matroska->ctx, AV_LOG_INFO, "Unknown entry 0x%X\n", id);
return ebml_parse_elem(matroska, &syntax[i], data);
static int ebml_parse(MatroskaDemuxContext *matroska, EbmlSyntax *syntax,
void *data)
{
- uint64_t id;
- int res = ebml_read_num(matroska, matroska->ctx->pb, 4, &id);
- id |= 1 << 7*res;
- return res < 0 ? res : ebml_parse_id(matroska, syntax, id, data);
+ if (!matroska->current_id) {
+ uint64_t id;
+ int res = ebml_read_num(matroska, matroska->ctx->pb, 4, &id);
+ if (res < 0)
+ return res;
+ matroska->current_id = id | 1 << 7*res;
+ }
+ return ebml_parse_id(matroska, syntax, matroska->current_id, data);
}
static int ebml_parse_nest(MatroskaDemuxContext *matroska, EbmlSyntax *syntax,
list->nb_elem++;
}
- if (syntax->type != EBML_PASS && syntax->type != EBML_STOP)
+ if (syntax->type != EBML_PASS && syntax->type != EBML_STOP) {
+ matroska->current_id = 0;
if ((res = ebml_read_num(matroska, pb, 8, &length)) < 0)
return res;
+ }
switch (syntax->type) {
case EBML_UINT: res = ebml_read_uint (pb, length, data); break;
matroska->segment_start = url_ftell(matroska->ctx->pb);
return ebml_parse_nest(matroska, syntax->def.n, data);
case EBML_PASS: return ebml_parse_id(matroska, syntax->def.n, id, data);
- case EBML_STOP: *(int *)data = 1; return 1;
+ case EBML_STOP: return 1;
default: return url_fseek(pb,length,SEEK_CUR)<0 ? AVERROR(EIO) : 0;
}
if (res == AVERROR_INVALIDDATA)
MatroskaSeekhead *seekhead = seekhead_list->elem;
uint32_t level_up = matroska->level_up;
int64_t before_pos = url_ftell(matroska->ctx->pb);
+ uint32_t saved_id = matroska->current_id;
MatroskaLevel level;
int i;
+ // we should not do any seeking in the streaming case
+ if (url_is_streamed(matroska->ctx->pb) ||
+ (matroska->ctx->flags & AVFMT_FLAG_IGNIDX))
+ return;
+
for (i=0; i<seekhead_list->nb_elem; i++) {
int64_t offset = seekhead[i].pos + matroska->segment_start;
level.length = (uint64_t)-1;
matroska->levels[matroska->num_levels] = level;
matroska->num_levels++;
+ matroska->current_id = 0;
ebml_parse(matroska, matroska_segment, matroska);
/* seek back */
url_fseek(matroska->ctx->pb, before_pos, SEEK_SET);
matroska->level_up = level_up;
+ matroska->current_id = saved_id;
}
static int matroska_aac_profile(char *codec_id)
uint64_t max_start = 0;
Ebml ebml = { 0 };
AVStream *st;
- int i, j;
+ int i, j, res;
matroska->ctx = s;
if (i >= FF_ARRAY_ELEMS(matroska_doctypes)) {
av_log(s, AV_LOG_WARNING, "Unknown EBML doctype '%s'\n", ebml.doctype);
}
- av_metadata_set2(&s->metadata, "doctype", ebml.doctype, 0);
ebml_free(ebml_syntax, &ebml);
/* The next thing is a segment. */
- if (ebml_parse(matroska, matroska_segments, matroska) < 0)
- return -1;
+ if ((res = ebml_parse(matroska, matroska_segments, matroska)) < 0)
+ return res;
matroska_execute_seekhead(matroska);
if (!matroska->time_scale)
if (track->flag_default)
st->disposition |= AV_DISPOSITION_DEFAULT;
+ if (track->flag_forced)
+ st->disposition |= AV_DISPOSITION_FORCED;
if (track->default_duration)
av_reduce(&st->codec->time_base.num, &st->codec->time_base.den,
if (matroska->prev_pkt &&
timecode != AV_NOPTS_VALUE &&
matroska->prev_pkt->pts == timecode &&
- matroska->prev_pkt->stream_index == st->index)
+ matroska->prev_pkt->stream_index == st->index &&
+ st->codec->codec_id == CODEC_ID_SSA)
matroska_merge_packets(matroska->prev_pkt, pkt);
else {
dynarray_add(&matroska->packets,&matroska->num_packets,pkt);
int i, res;
int64_t pos = url_ftell(matroska->ctx->pb);
matroska->prev_pkt = NULL;
- if (matroska->has_cluster_id){
- /* For the first cluster we parse, its ID was already read as
- part of matroska_read_header(), so don't read it again */
- res = ebml_parse_id(matroska, matroska_clusters,
- MATROSKA_ID_CLUSTER, &cluster);
+ if (matroska->current_id)
pos -= 4; /* sizeof the ID which was already read */
- matroska->has_cluster_id = 0;
- } else
- res = ebml_parse(matroska, matroska_clusters, &cluster);
+ res = ebml_parse(matroska, matroska_clusters, &cluster);
blocks_list = &cluster.blocks;
blocks = blocks_list->elem;
for (i=0; i<blocks_list->nb_elem; i++)
- if (blocks[i].bin.size > 0) {
+ if (blocks[i].bin.size > 0 && blocks[i].bin.data) {
int is_keyframe = blocks[i].non_simple ? !blocks[i].reference : -1;
res=matroska_parse_block(matroska,
blocks[i].bin.data, blocks[i].bin.size,
projects / ffmpeg / blobdiff