Merge commit '8136f234445862c94d1c081606b2d1e3d44fccf3'

[ffmpeg] / libavcodec / cdgraphics.c

diff --git a/libavcodec/cdgraphics.c b/libavcodec/cdgraphics.c
index 71d9da7ee23d1a876bd31fc08710d8d3364f5865..6d957f31d138a939997e00b21879420d79d8c6c3 100644 (file)
--- a/libavcodec/cdgraphics.c
+++ b/libavcodec/cdgraphics.c
@@ -291,6 +291,8 @@ static int cdg_decode_frame(AVCodecContext *avctx,
         av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
         return ret;
     }
+    if (!avctx->frame_number)
+        memset(cc->frame.data[0], 0, cc->frame.linesize[0] * avctx->height);
 
     command = bytestream_get_byte(&buf);
     inst    = bytestream_get_byte(&buf);