[FFmpeg-cvslog] r20178 - trunk/libavcodec/vc1dec.c

[kostya]

Author: kostya
Date: Tue Oct  6 17:30:08 2009
New Revision: 20178

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

Modified:
   trunk/libavcodec/vc1dec.c

Modified: trunk/libavcodec/vc1dec.c
==============================================================================
--- trunk/libavcodec/vc1dec.c	Tue Oct  6 08:33:18 2009	(r20177)
+++ trunk/libavcodec/vc1dec.c	Tue Oct  6 17:30:08 2009	(r20178)
@@ -3039,7 +3039,7 @@ static av_cold int vc1_decode_init(AVCod
         }
 
         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);