чт, 18 дек. 2025 г., 23:20 Phyllis Smith <[email protected]>:
> I would like to check Andrew's 3 attached patches in as: ffmpeg-8.0.V1 ... > V2 ... V3 so that they do not get lost. I built 3 different distros with > them in WITHOUT any vulkan stuff installed just to make sure no impact to > normalcy. What do you think? > I think this encoder still under development (as in - version I found *will* hang GPU if used for prores with alpha channel encoding ) and it probably will not apply itself clearly to our 8.0? Or did it? Place to watch now seems to be https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20477 but due to some long-running compile job (building packages for NetBSD/sparc via qemu) I am a bit afraid to test it right now ;) > On Tue, Dec 2, 2025 at 6:34 PM Andrew Randrianasulu via Cin < > [email protected]> wrote: > >> On Mon, Dec 1, 2025 at 8:09 PM Andrew Randrianasulu >> <[email protected]> wrote: >> > >> > Probably at patchwork also, but GSoC page links to this >> > >> > https://github.com/raphaelthegreat/FFmpeg/tree/prores-vk-encode >> > >> > page itself: >> > >> > https://summerofcode.withgoogle.com/archive/2025/projects/PHTgRqGg >> > >> > so I pulled tree into separate folder, switched to branch, extracted 3 >> last commits, git am them to ffmpeg.git (there was host copy vulkan fix in >> meantime) >> > >> > And .... >> > >> > it seems to work. >> > >> > At least for HQ profile ... >> > >> > at 4.5 fps, but this is faster than ffv1 (but not lossless, obviously). >> > >> > ./ffmpeg -init_hw_device vulkan=vulkan -hwaccel vulkan >> -filter_hw_device vulkan -i /dev/shm/Nature072-A006C0035_230328_4U1Q.mov >> -vf libplacebo -c:v prores_ks_vulkan -f matroska -noautoscale -pix_fmt >> vulkan 4k.mov >> > ffmpeg version N-120782-gc12bca52f8 Copyright (c) 2000-2025 the FFmpeg >> developers >> > built with gcc 11.2.0 (GCC) >> > configuration: --enable-opencl --disable-debug --enable-libx265 >> --enable-libx264 --enable-gpl --enable-libplacebo --enable-vulkan >> --enable-libshaderc --enable-libzimg --enable-libaom --enable-libdav1d >> --enable-libsoxr --enable-libfontconfig --enable-libfreetype >> --enable-libfribidi --enable-gnutls --enable-libass --enable-libbluray >> --enable-libcdio --enable-frei0r --enable-libgsm --enable-openal >> --enable-libopus --enable-librtmp --enable-libsnappy --enable-libspeex >> --enable-libssh --enable-libtheora --enable-libtwolame --enable-libv4l2 >> --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp >> > libavutil 60. 19.101 / 60. 19.101 >> > libavcodec 62. 21.100 / 62. 21.100 >> > libavformat 62. 6.103 / 62. 6.103 >> > libavdevice 62. 2.100 / 62. 2.100 >> > libavfilter 11. 10.101 / 11. 10.101 >> > libswscale 9. 3.100 / 9. 3.100 >> > libswresample 6. 2.100 / 6. 2.100 >> > Input #0, mov,mp4,m4a,3gp,3g2,mj2, from >> '/dev/shm/Nature072-A006C0035_230328_4U1Q.mov': >> > Metadata: >> > major_brand : qt >> > minor_version : 512 >> > compatible_brands: qt >> > creation_time : 2023-04-07T18:41:32.000000Z >> > encoder : Blackmagic Design DaVinci Resolve Studio >> > Duration: 00:00:08.00, start: 0.000000, bitrate: 1787424 kb/s >> > Stream #0:0[0x1]: Video: prores (HQ) (apch / 0x68637061), >> yuv422p10le(tv, bt709, progressive), 3840x2160, 1787418 kb/s, SAR 1:1 DAR >> 16:9, 60 fps, 60 tbr, 15360 tbn (default) >> > Metadata: >> > creation_time : 2023-04-07T18:41:32.000000Z >> > handler_name : VideoHandler >> > vendor_id : appl >> > encoder : Apple ProRes 422 HQ >> > timecode : 21:22:52:12 >> > Stream #0:1[0x2](eng): Data: none (tmcd / 0x64636D74), 0 kb/s >> > Metadata: >> > creation_time : 2023-04-07T18:41:32.000000Z >> > handler_name : TimeCodeHandler >> > timecode : 21:22:52:12 >> > File '4k.mov' already exists. Overwrite? [y/N] y >> > Stream mapping: >> > Stream #0:0 -> #0:0 (prores (native) -> prores (prores_ks_vulkan)) >> > Press [q] to stop, [?] for help >> > [prores_ks_vulkan @ 0xb299440] Autoselected HQ profile to keep best >> quality. It can be overridden through -profile option. >> > Output #0, matroska, to '4k.mov': >> > Metadata: >> > major_brand : qt >> > minor_version : 512 >> > compatible_brands: qt >> > encoder : Lavf62.6.103 >> > Stream #0:0: Video: prores (HQ) (apch / 0x68637061), vulkan(tv, >> bt709, progressive), 3840x2160 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 60 >> fps, 1k tbn (default) >> > Metadata: >> > encoder : Lavc62.21.100 prores_ks_vulkan >> > creation_time : 2023-04-07T18:41:32.000000Z >> > handler_name : VideoHandler >> > vendor_id : appl >> > timecode : 21:22:52:12 >> > [out#0/matroska @ 0xb29ddc0] video:1770722KiB audio:0KiB subtitle:0KiB >> other streams:0KiB global headers:0KiB muxing overhead: 0.001071% >> > frame= 480 fps=4.5 q=-0.0 Lsize= 1770741KiB time=00:00:08.00 >> bitrate=1813239.1kbits/s speed=0.0755x elapsed=0:01:45.90 >> > >> > >> > testing: >> > >> > bash-5.1$ mplayer 4k.mov >> > MPlayer SVN-r38660-11.2.0 (C) 2000-2024 MPlayer Team >> > 227 audio & 468 video codecs >> > do_connect: could not connect to socket >> > connect: No such file or directory >> > Failed to open LIRC support. You will not be able to use your remote >> control. >> > >> > Playing 4k.mov. >> > libavformat version 61.6.100 (internal) >> > libavformat file format detected. >> > [lavf] stream 0: video (prores), -vid 0 >> > VIDEO: [apch] 3840x2160 0bpp 60.000 fps 0.0 kbps ( 0.0 kbyte/s) >> > >> ========================================================================== >> > Opening video decoder: [qtvideo] Quicktime Video decoder >> > sh->ImageDesc not set, try -demuxer mov if this fails. >> > QuickTime6.3 DLLs found >> > QuickTime.qts patched!!! old entry=0x6693c3e0 >> > theQuickTimeDispatcher catched -> 0x6693c3e0 >> > WARNING! Invalid Ptr handle! >> > theQuickTimeDispatcher catched -> 0x6693c3e0 >> > theQuickTimeDispatcher catched -> 0x6693c3e0 >> > Movie-Aspect is 1.78:1 - prescaling to correct movie aspect. >> > VO: [vdpau] 3840x2160 => 3840x2160 Packed YUY2 >> > DecompressSequenceBegin result=-8961 >> > VDecoder init failed :( >> > Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family >> > libavcodec version 61.17.100 (internal) >> > Selected video codec: [ffprores] vfm: ffmpeg (FFmpeg Apple ProRes) >> > >> ========================================================================== >> > Clip info: >> > COMPATIBLE_BRANDS: qt >> > MAJOR_BRAND: qt >> > MINOR_VERSION: 512 >> > ENCODER: Lavf62.6.103 >> > Load subtitles in ./ >> > Audio: no sound >> > Starting playback... >> > Could not find matching colorspace - retrying with -vf scale... >> > Opening video filter: [scale] >> > Movie-Aspect is 1.78:1 - prescaling to correct movie aspect. >> > [swscaler @ 0x57a10180]bicubic scaler, from yuv422p10le to yuv420p >> using MMXEXT >> > VO: [vdpau] 3840x2160 => 3840x2160 Planar YV12 >> > [VD_FFMPEG] DRI failure. >> > Movie-Aspect is 1.78:1 - prescaling to correct movie aspect. >> > VO: [vdpau] 3840x2160 => 3840x2160 Planar YV12 >> > V: 0.0 0/ 0 ??% ??% ??,?% 0 0 >> > [VD_FFMPEG] DRI failure. >> > V: 0.3 0/ 0 ??% ??% ??,?% 0 0 >> > [ASPECT] Warning: No suitable new res found! >> > [ASPECT] Warning: No suitable new res found! >> > V: 1.9 0/ 0 47% 460% 0.0% 0 0 >> > >> > Exiting... (Quit) >> > >> > >> > >> > I wonder if Terje can replicate those results? Do not forgot to check >> if libplacebo was compiled in for your ffmpeg version ... >> >> It works with combination of two ffmpeg lines: >> >> >> ./ffmpeg -init_hw_device vulkan=vulkan -hwaccel vulkan >> -filter_hw_device vulkan -hwaccel_output_format vulkan -i >> /dev/shm/Nature072-A006C0035_230328_4U1Q.mov -c:v prores_ks_vulkan >> -f matroska -noautoscale -pix_fmt vulkan 4k.mov >> >> ffmpeg version N-120782-gc12bca52f8 Copyright (c) 2000-2025 the FFmpeg >> developers >> built with gcc 11.2.0 (GCC) >> configuration: --enable-opencl --disable-debug --enable-libx265 >> --enable-libx264 --enable-gpl --enable-libplacebo --enable-vulkan >> --enable-libshaderc --enable-libzimg --enable-libaom --enable-libdav1d >> --enable-libsoxr --enable-libfontconfig --enable-libfreetype >> --enable-libfribidi --enable-gnutls --enable-libass --enable-libbluray >> --enable-libcdio --enable-frei0r --enable-libgsm --enable-openal >> --enable-libopus --enable-librtmp --enable-libsnappy --enable-libspeex >> --enable-libssh --enable-libtheora --enable-libtwolame >> --enable-libv4l2 --enable-libvidstab --enable-libvorbis >> --enable-libvpx --enable-libwebp >> libavutil 60. 19.101 / 60. 19.101 >> libavcodec 62. 21.100 / 62. 21.100 >> libavformat 62. 6.103 / 62. 6.103 >> libavdevice 62. 2.100 / 62. 2.100 >> libavfilter 11. 10.101 / 11. 10.101 >> libswscale 9. 3.100 / 9. 3.100 >> libswresample 6. 2.100 / 6. 2.100 >> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from >> '/dev/shm/Nature072-A006C0035_230328_4U1Q.mov': >> Metadata: >> major_brand : qt >> minor_version : 512 >> compatible_brands: qt >> creation_time : 2023-04-07T18:41:32.000000Z >> encoder : Blackmagic Design DaVinci Resolve Studio >> Duration: 00:00:08.00, start: 0.000000, bitrate: 1787424 kb/s >> Stream #0:0[0x1]: Video: prores (HQ) (apch / 0x68637061), >> yuv422p10le(tv, bt709, progressive), 3840x2160, 1787418 kb/s, SAR 1:1 >> DAR 16:9, 60 fps, 60 tbr, 15360 tbn (default) >> Metadata: >> creation_time : 2023-04-07T18:41:32.000000Z >> handler_name : VideoHandler >> vendor_id : appl >> encoder : Apple ProRes 422 HQ >> timecode : 21:22:52:12 >> Stream #0:1[0x2](eng): Data: none (tmcd / 0x64636D74), 0 kb/s >> Metadata: >> creation_time : 2023-04-07T18:41:32.000000Z >> handler_name : TimeCodeHandler >> timecode : 21:22:52:12 >> Stream mapping: >> Stream #0:0 -> #0:0 (prores (native) -> prores (prores_ks_vulkan)) >> Press [q] to stop, [?] for help >> [prores_ks_vulkan @ 0xc9c7400] Autoselected HQ profile to keep best >> quality. It can be overridden through -profile option. >> Output #0, matroska, to '4k.mov': >> Metadata: >> major_brand : qt >> minor_version : 512 >> compatible_brands: qt >> encoder : Lavf62.6.103 >> Stream #0:0: Video: prores (HQ) (apch / 0x68637061), vulkan(tv, >> bt709, progressive), 3840x2160 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, >> 60 fps, 1k tbn (default) >> Metadata: >> encoder : Lavc62.21.100 prores_ks_vulkan >> creation_time : 2023-04-07T18:41:32.000000Z >> handler_name : VideoHandler >> vendor_id : appl >> timecode : 21:22:52:12 >> [out#0/matroska @ 0xc9cbb80] video:1744362KiB audio:0KiB subtitle:0KiB >> other streams:0KiB global headers:0KiB muxing overhead: 0.001087% >> frame= 480 fps=5.4 q=-0.0 Lsize= 1744381KiB time=00:00:08.00 >> bitrate=1786246.0kbits/s speed=0.0907x elapsed=0:01:28.16 >> >> testing: >> >> bash-5.1$ mpv 4k.mov >> Video --vid=1 (*) (prores 3840x2160 60 fps) >> [ffmpeg/video] prores: Unknown prores profile 0 >> [ffmpeg/video] prores: Unknown prores profile 0 >> [ffmpeg/video] prores: Unknown prores profile 0 >> [ffmpeg/video] prores: Unknown prores profile 0 >> [ffmpeg/video] prores: Unknown prores profile 0 >> VO: [gpu] 3840x2160 yuv422p10 >> V: 00:00:07.967 / 00:00:08.000 (100%) Dropped: 148 >> >> so, a bit faster than with libplacebo. >> >> >> Patches (git am) for ffmpeg git from >> >> git://git.videolan.org/ffmpeg.git >> >> at commit >> >> commit 413346bd06c33226254dacc829f128a6b6c337d7 (origin/master, >> origin/HEAD) >> >> attached .... >> _______________________________________________ >> Cin mailing list -- [email protected] >> To unsubscribe send an email to [email protected] >> >
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