set supported pixel formats for a few encoders (fixes crashes with grayscale)

Originally committed as revision 6303 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/asv1.c

@@ -632,6 +632,7 @@ AVCodec asv1_encoder = {
     encode_init,
     encode_frame,
     //encode_end,
+    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
 };
 
 AVCodec asv2_encoder = {
@@ -642,6 +643,7 @@ AVCodec asv2_encoder = {
     encode_init,
     encode_frame,
     //encode_end,
+    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
 };
 
 #endif //CONFIG_ENCODERS

libavcodec/ffv1.c

@@ -1027,5 +1027,6 @@ AVCodec ffv1_encoder = {
     encode_init,
     encode_frame,
     common_end,
+    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV444P, PIX_FMT_YUV422P, PIX_FMT_YUV411P, PIX_FMT_YUV410P, PIX_FMT_RGBA32, -1},
 };
 #endif

libavcodec/h261.c

@@ -1026,6 +1026,7 @@ AVCodec h261_encoder = {
     MPV_encode_init,
     MPV_encode_picture,
     MPV_encode_end,
+    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
 };
 #endif
 

libavcodec/wmv2.c

@@ -848,5 +848,6 @@ AVCodec wmv2_encoder = {
     wmv2_encode_init,
     MPV_encode_picture,
     MPV_encode_end,
+    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUVJ420P, -1},
 };
 #endif