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avformat/matroskadec: Fix OOM on long streams 

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-12-26 03:16:01 +01:00
parent a7946c8964
commit b347ca9341
1 changed files with 3 additions and 1 deletions
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4
libavformat/matroskadec.c
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@ -3234,9 +3234,11 @@ static int matroska_parse_block(MatroskaDemuxContext *matroska, uint8_t *data,
if (track->type == MATROSKA_TRACK_TYPE_SUBTITLE &&
timecode < track->end_timecode)
is_keyframe = 0; /* overlapping subtitles are not key frame */
if (is_keyframe)
if (is_keyframe) {
ff_reduce_index(matroska->ctx, st->index);
av_add_index_entry(st, cluster_pos, timecode, 0, 0,
AVINDEX_KEYFRAME);
}
}
if (matroska->skip_to_keyframe &&