SVQ3 uses the JPEG variant of YUV 4:2:0.

Fixes issue256


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@14257 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavcodec/h264.c

@@ -2200,6 +2200,10 @@ static av_cold int decode_init(AVCodecContext *avctx){
 //    s->decode_mb= ff_h263_decode_mb;
     s->quarter_sample = 1;
     s->low_delay= 1;
+
+    if(avctx->codec_id == CODEC_ID_SVQ3)
+        avctx->pix_fmt= PIX_FMT_YUVJ420P;
+    else
     avctx->pix_fmt= PIX_FMT_YUV420P;
 
     decode_init_vlc();