[FFmpeg-devel] [PATCH v2 2/2] avfilter: add vf_overlay_cuda

[Yaroslav Pogrebnyak]

Oh, I didn't noticed that h264_cuvid is legacy.

It seems the problem in this line:

ret = av_frame_make_writable(input_main);

If removed, it starts to work with -hwaccel cuda.

I'll take a closed look why and what happens but any advice would be 
helpful. Thanks!


On 19.03.20 21:15, Timo Rothenpieler wrote:
> I'm currently trying to get this to work with nvdec, but seemingly can't:
>
> ./ffmpeg_g.exe -v verbose
> -hwaccel_output_format cuda -hwaccel cuda -i test_h264.mp4 
> -hwaccel_output_format cuda -hwaccel cuda -i test2_h264.mp4
> -filter_complex
> "[0:v]scale_cuda=640:-2[p],[1:v][p]overlay_cuda=x=100:y=100:shortest=true" 
>
> -an -c:v h264_nvenc -y out.mp4
>
> It works with legacy h264_cuvid, but definitely also needs to work 
> with the proper nvdec hwaccel.
>
> I'm currently investigating as to why, but the error it produces is 
> very hard to track down:
>
> Error while filtering 2: Invalid argument
> Failed to inject frame into filter network: Invalid argument
> Error while processing the decoded data for stream #1:0
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