Fix vp3_draw_horiz_band to calculate chroma offsets correctly
authorReimar Döffinger <Reimar.Doeffinger@gmx.de>
Tue, 8 Jun 2010 19:25:28 +0000 (19:25 +0000)
committerReimar Döffinger <Reimar.Doeffinger@gmx.de>
Tue, 8 Jun 2010 19:25:28 +0000 (19:25 +0000)
for 4:2:2 and 4:4:4 formats.

Originally committed as revision 23537 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/vp3.c

index 6c76269..28e1eac 100644 (file)
@@ -1329,7 +1329,7 @@ static void vp3_draw_horiz_band(Vp3DecodeContext *s, int y)
         y = s->height - y - h;
     }
 
-    cy = y >> 1;
+    cy = y >> s->chroma_y_shift;
     offset[0] = s->current_frame.linesize[0]*y;
     offset[1] = s->current_frame.linesize[1]*cy;
     offset[2] = s->current_frame.linesize[2]*cy;