From bf1fd59c6a22854ddc601f3125ff55ba5f82ad24 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Mon, 20 Jul 2015 02:10:40 +0200 Subject: avformat/avidec: Fix demuxing avi with broken index Fixes: genio-avi Signed-off-by: Michael Niedermayer --- libavformat/avidec.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'libavformat/avidec.c') diff --git a/libavformat/avidec.c b/libavformat/avidec.c index 73d1d166ea..2f637225e9 100644 --- a/libavformat/avidec.c +++ b/libavformat/avidec.c @@ -1681,9 +1681,13 @@ static int guess_ni_flag(AVFormatContext *s) if (n >= 2) { int64_t pos = st->index_entries[0].pos; - avio_seek(s->pb, pos + 4, SEEK_SET); + unsigned tag[2]; + avio_seek(s->pb, pos, SEEK_SET); + tag[0] = avio_r8(s->pb); + tag[1] = avio_r8(s->pb); + avio_rl16(s->pb); size = avio_rl32(s->pb); - if (pos + size > st->index_entries[1].pos) + if (get_stream_idx(tag) == i && pos + size > st->index_entries[1].pos) last_start = INT64_MAX; } -- cgit v1.2.3