avcodec/avuienc: Initialize output data

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 2 insertions, 0 deletions

diff --git a/libavcodec/avuienc.c b/libavcodec/avuienc.c
index b91f782955..017619b4e4 100644
--- a/libavcodec/avuienc.c
+++ b/libavcodec/avuienc.c
@@ -71,6 +71,7 @@ static int avui_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
         return ret;
     dst = pkt->data;
     if (!interlaced) {
+        memset(dst, 0, avctx->width * skip);
         dst += avctx->width * skip;
     }
 
@@ -84,6 +85,7 @@ static int avui_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
         } else {
             src = pic->data[0] + i * pic->linesize[0];
         }
+        memset(dst, 0, avctx->width * skip + 4 * i);
         dst += avctx->width * skip + 4 * i;
         for (j = 0; j < avctx->height; j += interlaced + 1) {
             memcpy(dst, src, avctx->width * 2);