Valerii Zapodovnikov

> And the luma vs luminance changes Well, technically we do support linear transfer (so Y of YCbCr is indeed Y of XYZ) just not in ffplay directly (strange open...

> `git` only provides a method for automatically adding `--signoff` for _patches_, What about git send-email -1??? It needs sign-off-by too! WTF.

> replaced by BT.709-6 in 2015 Actually those new coeff. are from BT.709-2 from 1995. They do not make a difference for 8 bit BTW.

I do not understand. Does not minGW emulate this stuff on windows? Glibc is absent on windows, unless you install that genious git compiled that brings whole coreutils which is...

> * 32-bit OS installed over 64-bit hardware Well, technically you can bypass OS and still run 64 bit instructions on 32 bit OS and in 32 bit APP, you...

> This? Yes, but that still uses NT kernel API, that Microsoft calls Heaven's gate. I am talking ahout actually attacking the kernel and getting access to CPU hyperviser style.

You still did not migrate to w64? Oh.

> Not sure which of the three tags is the key. God... It is matrix (-colorspace bt709). `ffmpeg.exe -i file.mp4 -vf scale=out_color_matrix=bt709:out_range=tv,format=yuv420p -color_primaries bt709 -colorspace bt709 -color_trc bt709 -color_range pc...

> [There](https://github.com/felx/ffmbc/issues/114#issuecomment-213794071)'s [just](https://ffmpeg-user.ffmpeg.narkive.com/kyjUT8Ox/rgb-yuv-color-shift) [one](https://ffmpeg-user.ffmpeg.narkive.com/GWQG61UD/ffmpeg-introduces-color-shift-to-dnxhd-movs) [problem](https://lists.libav.org/pipermail/ffmpeg-user/2010-February/024095.html): every time That is not a problem. The default is always 601 limited mtrix if input and output are untagged. JPEG uses full 601 only,...

> being able to write color profiles to [png](https://github.com/FFmpeg/FFmpeg/commit/888a33c070f1e96b683e13e7b0b6af891428c6c3) if you wanted That did not work for a long time due to bug in sidedata of png. It is wrong...