wcap: Support the other pixel format we may write
diff --git a/wcap/wcap-decode.c b/wcap/wcap-decode.c
index f6798c6..d6adc33 100644
--- a/wcap/wcap-decode.c
+++ b/wcap/wcap-decode.c
@@ -120,6 +120,7 @@
 			    PROT_READ, MAP_PRIVATE, decoder->fd, 0);
 		
 	header = decoder->map;
+	decoder->format = header->format;
 	decoder->width = header->width;
 	decoder->height = header->height;
 	decoder->p = header + 1;