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drop blocks which are part of unsupported tracks

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Originally committed as revision 9416 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Aurelien Jacobs 2007-06-24 21:49:13 +00:00
parent 0c84e74400
commit 2def9cd94d
1 changed files with 5 additions and 1 deletions
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6
libavformat/matroskadec.c
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@ -41,7 +41,7 @@ typedef struct Track {
* the calling app uses for this track. */
uint32_t num;
uint32_t uid;
uint32_t stream_index;
int stream_index;
char *name;
char *language;
@ -2021,6 +2021,7 @@ matroska_read_header (AVFormatContext *s,
int extradata_size = 0;
int extradata_offset = 0;
track = matroska->tracks[i];
track->stream_index = -1;
/* libavformat does not really support subtitles.
* Also apply some sanity checks. */
@ -2213,6 +2214,7 @@ matroska_read_header (AVFormatContext *s,
MatroskaDemuxIndex *idx = &matroska->index[i];
track = matroska_find_track_by_num(matroska, idx->track);
stream = matroska->tracks[track]->stream_index;
if (stream >= 0)
av_add_index_entry(matroska->ctx->streams[stream],
idx->pos, idx->time/matroska->time_scale,
0, 0, AVINDEX_KEYFRAME);
@ -2260,6 +2262,8 @@ matroska_parse_block(MatroskaDemuxContext *matroska, uint8_t *data, int size,
av_free(origdata);
return res;
}
if (matroska->tracks[track]->stream_index < 0)
return res;
st = matroska->ctx->streams[matroska->tracks[track]->stream_index];
if (st->discard >= AVDISCARD_ALL) {
av_free(origdata);