[ffmpeg] add support in portfile for NVIDIA hardware acceleration

[marcbertola]

Hello,

FFmpeg has support for NVIDIA hardware decode and encode acceleration for H.264 and H.265 (HEVC). However, the existing portfile does not expose this functionality via the features described in the CONTROL file.

I have successfully managed to make a few small modifications to the existing CONTROL and portfile.cmake to accomplish this, and have already compiled successfully for x64-windows, x64-linux and cross-compiled from x64-linux to aarch64-linux (NVIDIA Jetson Xavier board). What is the correct procedure to perform a code review of the changes and pull request?

Also worth noting: ffmpeg's scripts depend on the presence of the header-only FFmpeg/nv-codec-headers repo. To implement my fix, I needed to add a new port for this, and create a dependency on it in the CONTROL file.
https://github.com/FFmpeg/nv-codec-headers

[cenit]

Just open a Pull request containing all your fixes, you will be guided in case any modification is necessary

[marcbertola]

Ok, I need to get some other dependencies compiled before I can try this, but if testing goes well, I'll kick off the process.

[zhuohekeji]

Ok, I need to get some other dependencies compiled before I can try this, but if testing goes well, I'll kick off the process.

Hi, marcbertola. Does the ffmpeg in vcpkg support ffnvcodec now? I didn't find any change in portfile.cmake and CONTROL. How can I compile ffmpeg with NVIDIA hardware acceleration? Thanks!

[marcbertola]

Sorry - haven't gotten around to publishing it, but it works. I'll get a PR together asap and let you know as soon as it's ready.

[marcbertola]

Pull request has been submitted.
#9171

[NancyLi1013]

Hi @marcbertola

Thanks for your great effors and patience.
Since the PR has been merged,I close this issue now.