[FFmpeg-devel] [PATCH 17/18] avformat/webpenc: Fix memleak when trailer is never written
Andreas Rheinhardt
andreas.rheinhardt at gmail.com
Fri Mar 19 07:59:03 EET 2021
When the trailer is never written (or when a stream switches from
non-animation mode to animation mode mid-stream), a cached packet
(if existing) would leak. Fix this by adding a deinit function.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at gmail.com>
---
AVFormatInternal.parse_pkt is completely unused for muxers, so it can be
reused in this muxer and this deinit function removed again. See
https://github.com/mkver/FFmpeg/commits/packet_reuse for more.
libavformat/webpenc.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/libavformat/webpenc.c b/libavformat/webpenc.c
index d5edf89289..ed8325c02d 100644
--- a/libavformat/webpenc.c
+++ b/libavformat/webpenc.c
@@ -191,6 +191,13 @@ static int webp_write_trailer(AVFormatContext *s)
return 0;
}
+static void webp_deinit(AVFormatContext *s)
+{
+ WebpContext *w = s->priv_data;
+
+ av_packet_unref(&w->last_pkt);
+}
+
#define OFFSET(x) offsetof(WebpContext, x)
#define ENC AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
@@ -214,6 +221,7 @@ AVOutputFormat ff_webp_muxer = {
.init = webp_init,
.write_packet = webp_write_packet,
.write_trailer = webp_write_trailer,
+ .deinit = webp_deinit,
.priv_class = &webp_muxer_class,
.flags = AVFMT_VARIABLE_FPS,
};
--
2.27.0
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