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Since some junk may be or may be not present before actual VC-1 extradata,

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search for real extradata start instead of always skipping one byte.

Patch by Andrew Dennison gmailify(${name}d, lists)
Thread: [PATCH] Fix VC1 "Incomplete extradata" for mkv files generated by eac3to

Originally committed as revision 20178 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Andrew Dennison 2009-10-06 15:30:08 +00:00 committed by Kostya Shishkov
parent 01418506a2
commit 95ce961d88
1 changed files with 1 additions and 1 deletions
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2
libavcodec/vc1dec.c
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@ -3039,7 +3039,7 @@ static av_cold int vc1_decode_init(AVCodecContext *avctx)
}
buf2 = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
if(start[0]) start++; // in WVC1 extradata first byte is its size
start = find_next_marker(start, end); // in WVC1 extradata first byte is its size, but can be 0 in mkv
next = start;
for(; next < end; start = next){
next = find_next_marker(start + 4, end);