From 7997d78643797d6d26babc4eabbda71049457169 Mon Sep 17 00:00:00 2001
From: James Almer <jamrial@gmail.com>
Date: Wed, 27 Aug 2014 15:39:50 -0300
Subject: [PATCH] lavc/libwebpenc: use WebPMemoryWriterClear()

WebPMemoryWriterClear() must be used instead of free() when libwebp ABI version is > 0x0203

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>
---
 libavcodec/libwebpenc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libavcodec/libwebpenc.c b/libavcodec/libwebpenc.c
index 5283da5070..4cb8dc384e 100644
--- a/libavcodec/libwebpenc.c
+++ b/libavcodec/libwebpenc.c
@@ -231,7 +231,11 @@ static int libwebp_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
     *got_packet = 1;
 
 end:
+#if (WEBP_ENCODER_ABI_VERSION > 0x0203)
+    WebPMemoryWriterClear(&mw);
+#else
     free(mw.mem); /* must use free() according to libwebp documentation */
+#endif
     WebPPictureFree(pic);
     av_freep(&pic);
     av_frame_free(&alt_frame);