Add ffmpeg4.4

[lazka]

The goal of this package is to provide ffmpeg 4.4.x and not conflict with ffmpeg 5.x etc.

Compared to the current 4.4 package this removes the frei0r-plugins dependency, since there is a dep cycle via frei0r-plugins -> opencv

edit:

# for packages switching to this:
depends=("${MINGW_PACKAGE_PREFIX}-ffmpeg4.4")
export PKG_CONFIG_PATH="${MINGW_PREFIX}/lib/ffmpeg4.4/pkgconfig:$PKG_CONFIG_PATH"

[wszqkzqk]

May we make a list of the packages depend on ffmpeg4.4? Thus others can use ffmpeg5.

[lazka]

I was planning to follow #10725 (comment), but the 4.4 packages there take very long to build, so I'm going to test with vlc first. Not today though.

[wszqkzqk]

I was planning to follow #10725 (comment), but the 4.4 packages there take very long to build, so I'm going to test with vlc first. Not today though.

Can we refer to archlinux?
ffmpeg4.4
ffmpeg5

The note of archlinux's vlc package

[wszqkzqk]

I was planning to follow #10725 (comment), but the 4.4 packages there take very long to build, so I'm going to test with vlc first. Not today though.

Can we refer to archlinux? ffmpeg4.4 ffmpeg5

The note of archlinux's vlc package

Arch Linux's VLC denpend on ffmpeg4.4 duo to vaapi, which is unavailable in windows, so we may have a try.

[lazka]

I did a bit of cleanup in #15760 and synced that in here.

Arch Linux's VLC denpend on ffmpeg4.4 duo to vaapi, which is unavailable in windows, so we may have a try.

It is supported in theory, see https://packages.msys2.org/base/mingw-w64-libva and https://devblogs.microsoft.com/directx/video-acceleration-api-va-api-now-available-on-windows/, but we don't used it in ffmpeg, yeah. I'm just using VLC for now as a test to see if linking works and there are no cycles.

[lazka]

pkgconf relocation is broken with the .pc files being in a subdirectory

[lazka]

Yay.. It worked