DV: check coded_width/height instead of width/height.

This makes the workaround also work with lowres.
Fixes issue #633.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

libavcodec/dvdata.c

@@ -300,7 +300,7 @@ const DVprofile* avpriv_dv_frame_profile2(AVCodecContext* codec, const DVprofile
         return &dv_profiles[2];
     }
 
-    if(stype == 0 && codec && codec->codec_tag==AV_RL32("dvsd") && codec->width==720 && codec->height==576)
+    if(stype == 0 && codec && codec->codec_tag==AV_RL32("dvsd") && codec->coded_width==720 && codec->coded_height==576)
         return &dv_profiles[1];
 
     for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++)