[FFmpeg-devel] [PATCH] avcodec/mfenc: fix memory leak with D3D11 input surfaces (PR #20383)

[cgutman via ffmpeg-devel <ffmpeg-devel@ffmpeg.org>]

PR #20383 opened by cgutman
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20383
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20383.patch

This should also cherry-pick cleanly to `release/8.0`

Fixes: d56522c6eb75 ("avcodec/mfenc: add support for D3D11 input surfaces")
Signed-off-by: Cameron Gutman <aicommander@gmail.com>


>From b2910ec92ef0f12f2cee56be331f8ae234ead4a4 Mon Sep 17 00:00:00 2001
From: Cameron Gutman <aicommander@gmail.com>
Date: Sun, 10 Aug 2025 16:11:55 -0500
Subject: [PATCH] avcodec/mfenc: fix memory leak with D3D11 input surfaces

Fixes: d56522c6eb75 ("avcodec/mfenc: add support for D3D11 input surfaces")
Signed-off-by: Cameron Gutman <aicommander@gmail.com>
---
 libavcodec/mfenc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavcodec/mfenc.c b/libavcodec/mfenc.c
index 942c75cb9d..6f79386404 100644
--- a/libavcodec/mfenc.c
+++ b/libavcodec/mfenc.c
@@ -1366,6 +1366,9 @@ static int mf_close(AVCodecContext *avctx)
     if (c->async_events)
         IMFMediaEventGenerator_Release(c->async_events);
 
+    if (c->dxgiManager)
+        IMFDXGIDeviceManager_Release(c->dxgiManager);
+
 #if !HAVE_UWP
     if (c->library)
         ff_free_mf(&c->functions, &c->mft);
-- 
2.49.1

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