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Code Issues Releases Activity

avfilter/vf_chromakey_cuda: specify alpha_mode of output

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Fix assert failure with:

ffmpeg -init_hw_device cuda=gpu -filter_hw_device gpu \
	-i input.mp4 -an \
	-vf hwupload,format=cuda,chromakey_cuda=color=black,hwdownload,format=yuva420p,alphaextract \
	-f null -

Assertion frame->alpha_mode == link->alpha_mode failed at src/libavfilter/avfilter.c:1085
This commit is contained in:
Zhao Zhili
2025-09-26 21:06:24 +08:00
committed by Zhao Zhili
parent 027497891b
commit ba9c635784
1 changed files with 2 additions and 0 deletions
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2
libavfilter/vf_chromakey_cuda.c
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@@ -259,6 +259,7 @@ static av_cold int cudachromakey_config_props(AVFilterLink *outlink)
s->cu_stream = s->hwctx->stream;
outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
outlink->alpha_mode = AVALPHA_MODE_STRAIGHT;
ret = cudachromakey_load_functions(ctx);
if (ret < 0)
@@ -389,6 +390,7 @@ static int cudachromakey_filter_frame(AVFilterLink *link, AVFrame *in)
ret = av_frame_copy_props(out, in);
if (ret < 0)
goto fail;
out->alpha_mode = outlink->alpha_mode;
ret = CHECK_CU(cu->cuCtxPopCurrent(&context));
if (ret < 0)