When the packet size is known in advance like here, one can avoid
an intermediate buffer for the packet data.

Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com>
---
 libavcodec/xwdenc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/xwdenc.c b/libavcodec/xwdenc.c
index 81cca6c963..04db2ceabc 100644
--- a/libavcodec/xwdenc.c
+++ b/libavcodec/xwdenc.c
@@ -147,7 +147,7 @@ static int xwd_encode_frame(AVCodecContext *avctx, AVPacket 
*pkt,
     header_size = XWD_HEADER_SIZE + WINDOW_NAME_SIZE;
     out_size    = header_size + ncolors * XWD_CMAP_SIZE + avctx->height * 
lsize;
 
-    if ((ret = ff_alloc_packet2(avctx, pkt, out_size, 0)) < 0)
+    if ((ret = ff_alloc_packet2(avctx, pkt, out_size, out_size)) < 0)
         return ret;
     buf = pkt->data;
 
-- 
2.27.0

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