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| author | Niklas Haas <git@haasn.dev> | 2025-08-07 22:07:32 +0200 |
|---|---|---|
| committer | Niklas Haas <ffmpeg@haasn.dev> | 2025-08-08 11:29:27 +0000 |
| commit | 62893fb94ec19583daf0d6cd65bb6e392fb416cb (patch) | |
| tree | d96e97f9638c4acc55b3d2ee2b5d2f23cf94335b | |
| parent | 3091bca3edb339a4d2ec8c64e52fa7e67a7d5005 (diff) | |
| download | ffmpeg-62893fb94ec19583daf0d6cd65bb6e392fb416cb.tar.gz | |
avfilter/vf_libplacebo: flush render cache when input is invisible
This prevents leaking stale metadata from previous frames, for example if
an overlay temporarily obscures this input and then un-obscures it again. It
is worth pointing out that this does change the semantics subtly, because of
the smoothing period on detected HDR metadata, but I argue that the new
behavior is an improvement, as it will avoid leaking past metadata that is
definitely no longer relevant after an image is unobscured.
| -rw-r--r-- | libavfilter/vf_libplacebo.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavfilter/vf_libplacebo.c b/libavfilter/vf_libplacebo.c index e62114199b..d15c89b51e 100644 --- a/libavfilter/vf_libplacebo.c +++ b/libavfilter/vf_libplacebo.c @@ -1049,8 +1049,10 @@ static int output_frame(AVFilterContext *ctx, int64_t pts) FilterLink *il = ff_filter_link(ctx->inputs[i]); FilterLink *ol = ff_filter_link(outlink); int high_fps = av_cmp_q(il->frame_rate, ol->frame_rate) >= 0; - if (in->qstatus != PL_QUEUE_OK || !in->mix.num_frames || i < idx_start) + if (in->qstatus != PL_QUEUE_OK || !in->mix.num_frames || i < idx_start) { + pl_renderer_flush_cache(in->renderer); continue; + } opts->params.skip_caching_single_frame = high_fps; update_crops(ctx, in, &target, target_pts); pl_render_image_mix(in->renderer, &in->mix, &target, &opts->params); |