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avformat/avidec: Workaround broken initial frame

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Fixes Ticket4851

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 3e2ef00394)
This commit is contained in:
Michael Niedermayer 2015-09-15 04:01:27 +02:00 committed by Carl Eugen Hoyos
parent 4edb236c49
commit 6b4a22b5e9
1 changed files with 2 additions and 1 deletions
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libavformat/avidec.c
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@ -1544,7 +1544,8 @@ static int avi_read_idx1(AVFormatContext *s, int size)
ast = st->priv_data;
if (first_packet && first_packet_pos) {
data_offset = first_packet_pos - pos;
if (avi->movi_list + 4 != pos || pos + 500 > first_packet_pos)
data_offset = first_packet_pos - pos;
first_packet = 0;
}
pos += data_offset;