kmvc decoder uses get_buffer, set CODEC_CAP_DR1

Originally committed as revision 19102 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/kmvc.c

@@ -410,5 +410,6 @@ AVCodec kmvc_decoder = {
     NULL,
     decode_end,
     decode_frame,
+    CODEC_CAP_DR1,
     .long_name = NULL_IF_CONFIG_SMALL("Karl Morton's video codec"),
 };