From b347ca93412f43fb4593e1381b3b22e2fa20c0de Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Mon, 26 Dec 2016 03:16:01 +0100 Subject: [PATCH] avformat/matroskadec: Fix OOM on long streams Signed-off-by: Michael Niedermayer --- libavformat/matroskadec.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c index 58731aaaba..7e74348b2a 100644 --- a/libavformat/matroskadec.c +++ b/libavformat/matroskadec.c @@ -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 &&