ср, 10 июл. 2024 г., 01:45 Terje J. Hanssen <terjejhanssen@gmail.com>:


Den 09.07.2024 02:24, skrev Phyllis Smith via Cin:

Will it be possible to add the version info here?


well, it was working in the past with configure switches enabling x264/x265 multibit versions compilation. Now x264 should be always multibit and x265 patched manually ... I'll think about something but not sure if there easy way to get this info, esp. for external ffmpeg.

So far simplest way to test seems to be just trying to render 10-bit x265 and see if it works ...

This is EXACTLY what I do !


Some sample steps here would be useful and worth having for simple testing ;)

And, one needs to load a 10-bit video file (fx prores, cfhd or other) to be able to render a 10-bit output?



for just testing you probably can load any video/image - it will error out at rendering time if libx265 does not support those high depths. 

I have read somewhere that at least with x264 even normal, originally 8bit content  showed less visible gradients in flatly colored areas (like anime/cartoons) if encoded as 10bit h264. 

You can run your own test and see if it holds true for footage you have. 

Which 10-bit/12-bit output formats are currently supported in CinGG or potential actual to add support for with profiles etc. ?
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I looked into which pixel formats current ffmpeg-7 encoders in question do support as follows:

Cineform
ffmpeg -hide_banner -h encoder=cfhd | grep Supported
    Supported pixel formats: yuv422p10le gbrp12le gbrap12le

Prores
ffmpeg -hide_banner -h encoder=cfhd | grep Supported
    Supported pixel formats: yuv422p10le gbrp12le gbrap12le

x264
ffmpeg -hide_banner -h encoder=libx264 | grep Supported
    Supported pixel formats: yuv420p yuvj420p yuv422p yuvj422p yuv444p yuvj444p nv12 nv16 nv21 yuv420p10le yuv422p10le yuv444p10le nv20le gray gray10le

x265
ffmpeg -hide_banner -h encoder=libx265 | grep Supported
    Supported pixel formats: yuv420p yuvj420p yuv422p yuvj422p yuv444p yuvj444p gbrp yuv420p10le yuv422p10le yuv444p10le gbrp10le yuv420p12le yuv422p12le yuv444p12le gbrp12le gray gray10le gray12le

AV1
ffmpeg -hide_banner -h encoder=libsvtav1 | grep Supported
    Supported pixel formats: yuv420p yuv420p10le

ffmpeg -hide_banner -h encoder=av1_nvenc | grep Supported
    Supported hardware devices: cuda cuda
    Supported pixel formats: yuv420p nv12 p010le yuv444p p016le yuv444p16le bgr0 bgra rgb0 rgba x2rgb10le x2bgr10le gbrp gbrp16le cuda

ffmpeg -hide_banner -h encoder=av1_qsv | grep Supported
    Supported hardware devices: qsv qsv qsv
    Supported pixel formats: nv12 p010le qsv

ffmpeg -hide_banner -h encoder=av1_vaapi | grep Supported
    Supported hardware devices: vaapi
    Supported pixel formats: vaapi

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Earlier topics as background references:

[CinCV TNG] 10-bit ProRes 422 (HQ) and matching Cinelerra Color models?
https://lists.cinelerra-cv.org/pipermail/cinelerra/2016q1/004083.html

[CinCV TNG] 10-Bit Cinelerra-GG version - CINX
https://lists.cinelerra-cv.org/pipermail/cinelerra/2018q2/008888.html

[Cin] Cinx - 10-bit h264 and/or h265
https://lists.cinelerra-gg.org/pipermail/cin/2019-January/000113.html

UHD and 10-bit (forum 2019)
https://www.cinelerra-gg.org/forum/help-video/uhd-and-10-bit/