[FFmpeg-devel] [PATCH] avfilter/vf_libplacebo: clear linear target before use (PR #20486)

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

PR #20486 opened by ronag
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20486
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20486.patch

Otherwise the target contains data from the previous frame.


>From 69aa9b91b3983c0da9dfee1e3880277435aa8c25 Mon Sep 17 00:00:00 2001
From: Robert Nagy <ronagy@icloud.com>
Date: Wed, 10 Sep 2025 12:31:06 +0200
Subject: [PATCH] avfilter/vf_libplacebo: clear linear target before use

---
 libavfilter/vf_libplacebo.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavfilter/vf_libplacebo.c b/libavfilter/vf_libplacebo.c
index 5e0a678ff2..ba1971fb02 100644
--- a/libavfilter/vf_libplacebo.c
+++ b/libavfilter/vf_libplacebo.c
@@ -1035,6 +1035,7 @@ props_done:
         };
         target.color.transfer = PL_COLOR_TRC_LINEAR;
         use_linear_compositor = true;
+        pl_render_image(s->linear_rr, NULL, &target, &opts->params);
     }
 
     /* Draw first frame opaque, others with blending */
-- 
2.49.1

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