From 238614de679a71970c20d7c3fee08a322967ec40 Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Sat, 26 Jan 2013 22:02:19 +0100
Subject: cdgraphics: do not rely on get_buffer() initializing the frame.

Setting it to zero (instead of 128, as the default get_buffer() does)
also produces more correctly-looking output.
---
 libavcodec/cdgraphics.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'libavcodec/cdgraphics.c')

diff --git a/libavcodec/cdgraphics.c b/libavcodec/cdgraphics.c
index e4ed83b9d4..9f402cae21 100644
--- a/libavcodec/cdgraphics.c
+++ b/libavcodec/cdgraphics.c
@@ -287,6 +287,8 @@ 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);
-- 
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