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avformat/avidec: Workaround broken initial frame
Fixes Ticket4851
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 3e2ef00394
)
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parent
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@ -1548,7 +1548,8 @@ static int avi_read_idx1(AVFormatContext *s, int size)
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ast = st->priv_data;
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if (first_packet && first_packet_pos) {
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data_offset = first_packet_pos - pos;
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if (avi->movi_list + 4 != pos || pos + 500 > first_packet_pos)
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data_offset = first_packet_pos - pos;
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first_packet = 0;
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}
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pos += data_offset;
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