VC-1 postproc field is 2 bits wide while decoder read only single bit.

Spotted by Stephen Warren.

Originally committed as revision 16725 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavcodec/vc1.c b/libavcodec/vc1.c
index e329ac9..78b76d1 100644 (file)
--- a/libavcodec/vc1.c
+++ b/libavcodec/vc1.c
@@ -1407,7 +1407,7 @@ static int vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
     if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
         v->pquantizer = get_bits1(gb);
     if(v->postprocflag)
     if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
         v->pquantizer = get_bits1(gb);
     if(v->postprocflag)

-        v->postproc = get_bits1(gb);
+        v->postproc = get_bits(gb, 2);

 
     if(v->s.pict_type == FF_I_TYPE || v->s.pict_type == FF_P_TYPE) v->use_ic = 0;
 
 
     if(v->s.pict_type == FF_I_TYPE || v->s.pict_type == FF_P_TYPE) v->use_ic = 0;