added 422P and 444P formats (need to patch ffmpeg.c so that it is handled in all the program)

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@38 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavcodec/avcodec.h

@@ -26,6 +26,8 @@ enum PixelFormat {
     PIX_FMT_YUV422,
     PIX_FMT_RGB24,
     PIX_FMT_BGR24,
+    PIX_FMT_YUV422P,
+    PIX_FMT_YUV444P,
 };
 
 /* in bytes */