amv decoder uses get_buffer, set CODEC_CAP_DR1

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@19093 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavcodec/sp5xdec.c

@@ -216,5 +216,6 @@ AVCodec amv_decoder = {
     NULL,
     ff_mjpeg_decode_end,
     sp5x_decode_frame,
+    CODEC_CAP_DR1,
     .long_name = NULL_IF_CONFIG_SMALL("AMV Video"),
 };