[Cin] [Libav-user] Dynamic_input filters and avfilter_pad_get_type

[Andrew Randrianasulu]

сб, 10 мая 2025 г., 16:20 Andrea paz <gamberucci.andrea at gmail.com>:

> >> Andrea, can you test attached patch +  this opts file put alongside
> >> test 4k HDR video  decodable by hardware?
>
> I compiled with the patch and put the opts in .../bin/ffmpeg.
> I don't think I know what and how to test. I loaded the
> iPhone13_tonemapping_checker_rev2.mp4 file you had provided. The
> playback performance is good (even in reverse, with only a few
> freezes). However, the video card does not activate and the CPU (not
> particularly busy) does everything. The behavior is the same even
> removing the opts. Suggestions?
>
> PS: the same is true with the lines for zscale that you asked to put
> in the manual. Do I have to do an opts on it? How do I text it?
> I also don't quite understand how the line you report works.
>

you create file with .opts extension in same folder where your
main_media_file.mov located.

You name it main_media_file.opts

You put test lines there.

You might need

RADV_PERFTEST=video_decode set before you launch cin. I usually just launch
cin path_to_test_media/main_media_file.mov
It should pick up .opts file from there.

I did not try to put those lines in global decode.opts

you also need to set cin to Vulkan decoding (should be already in git).
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