[Cin] Mesa 24.3 and Vulkan

[Terje J. Hanssen]

Den 28.11.2024 00:00, skrev Terje J. Hanssen:
>
>
>
> Den 27.11.2024 23:40, skrev Andrew Randrianasulu:
>>
>>
>> чт, 28 нояб. 2024 г., 01:22 Terje J. Hanssen via Cin 
>> <cin at lists.cinelerra-gg.org>:
>>
>>     In August this year we had a thread "h264 vulkan encoding"
>>     initiated by Andrea
>>     https://lists.cinelerra-gg.org/pipermail/cin/2024-August/008517.html
>>
>>     Mesa 24.3 is released with many Vulkan Driver Improvement, and
>>     implementations are expected around the corner in rolling
>>     distributions.
>>
>>     Some articles about this in Phoronix
>>     https://www.phoronix.com/news/Mesa-24.3-Released
>>     https://www.phoronix.com/news/Mesa-24.3-rc2
>>     https://www.phoronix.com/news/Mesa-24.3-rc1-Released
>>     https://www.phoronix.com/news/Intel-Vulkan-Video-H264-H265
>>
>>     With ffmpeg (7.1) h264/5 vulkan encoder support, I wonder if
>>     Cingg is ready to put them into use?
>>
>>     ffmpeg -hide_banner -encoders | grep vulkan
>>      V....D h264_vulkan          H.264/AVC (Vulkan) (codec h264)
>>      V....D hevc_vulkan          H.265/HEVC (Vulkan) (codec hevc)
>>
>>
>>
>> you can try already (on system's ffmpeg), can't you?
>
> Not Mesa 24.3 and vulkan encoding quite yet:
>
> API: OpenGL v: 4.6 vendor: intel mesa v: 24.2.7 renderer: Mesa Intel Arc
>     A750 Graphics (DG2)
>   API: Vulkan v: 1.3.296 drivers: N/A surfaces: xcb,xlib
>   API: EGL Message: EGL data requires eglinfo. Check --recommends.
>
>
> # export ANV_VIDEO_DECODE=1
>
> # vulkaninfo | grep VK_KHR_video
>     VK_KHR_video_decode_h264                      : extension revision 9
>     VK_KHR_video_decode_h265                      : extension revision 8
>     VK_KHR_video_decode_queue                     : extension revision 8
>     VK_KHR_video_queue
>
> So assume the FFmpeg benchmarks sample was vulkan decoding only, as 
> they work for hdv (mpeg2) input also:
>
> ffmpeg -hide_banner -init_hw_device "vulkan=vk:0" -hwaccel vulkan 
> -hwaccel_output_format vulkan -i hdv09_04.m2t -f null - -benchmark
> frame= 5963 fps=3503 q=-0.0 Lsize=N/A time=00:03:58.77 bitrate=N/A 
> speed= 140x
> bench: utime=19.045s stime=0.313s rtime=1.702s
>
> ffmpeg -hide_banner -init_hw_device "vulkan=vk:0" -hwaccel vulkan 
> -hwaccel_output_format vulkan -i hdv09_04_h264_qsv.mp4 -f null - 
> -benchmark
> frame= 5969 fps=988 q=-0.0 Lsize=N/A time=00:03:58.76 bitrate=N/A 
> speed=39.5x
> bench: utime=1.397s stime=1.390s rtime=6.042s
> bench: maxrss=164700KiB
>
> fmpeg -hide_banner -init_hw_device "vulkan=vk:0" -hwaccel vulkan 
> -hwaccel_output_format vulkan -i hdv09_04_hevc_qsv_8b420.mp4 -f null - 
> -benchmark
> frame=  248 fps=2.0 q=-0.0 size=N/A time=00:00:09.92 bitrate=N/A 
> speed=0.0787x
> hevc terrible slow !!
>
And I found a sample encoding on reddit, which failed as assumed for me 
as follows (similar for h264_vulkan):

ffmpeg -init_hw_device vulkan=vkdev:0 -filter_hw_device vkdev -i 
hdv09_04.m2t -filter:v "format=nv12,hwupload" -c:v h264_vulkan 
hdv09_04_h264_vulkan_8b420.mp4

ffmpeg version 7.1 Copyright (c) 2000-2024 the FFmpeg developers
   built with gcc 14 (SUSE Linux)
   configuration: --prefix=/usr --libdir=/usr/lib64 
--shlibdir=/usr/lib64 --incdir=/usr/include/ffmpeg --extra-cflags='-O2 
-Wall -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=3 -fstack-protector-strong 
-funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection 
-Werror=return-type -flto=auto -ffat-lto-objects -g' --optflags='-O2 
-Wall -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=3 -fstack-protector-strong 
-funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection 
-Werror=return-type -flto=auto -ffat-lto-objects -g' --disable-htmlpages 
--enable-pic --disable-stripping --enable-shared --disable-static 
--enable-gpl --enable-version3 --enable-libsmbclient --disable-openssl 
--enable-gnutls --enable-ladspa --enable-libshaderc --enable-vulkan 
......................
..........
[hevc_vulkan @ 0x55c32f8df6c0] Device does not support the 
VK_KHR_video_encode_queue extension!
[vost#0:0/hevc_vulkan @ 0x55c32fa0cf00] Error while opening encoder - 
maybe incorrect parameters such as bit_rate, rate, width or height.
[vf#0:0 @ 0x55c32f8adcc0] Error sending frames to consumers: Function 
not implemented
[vf#0:0 @ 0x55c32f8adcc0] Task finished with error code: -38 (Function 
not implemented)
[vf#0:0 @ 0x55c32f8adcc0] Terminating thread with return code -38 
(Function not implemented)
[vost#0:0/hevc_vulkan @ 0x55c32fa0cf00] Could not open encoder before EOF
[vost#0:0/hevc_vulkan @ 0x55c32fa0cf00] Task finished with error code: 
-22 (Invalid argument)
[vost#0:0/hevc_vulkan @ 0x55c32fa0cf00] Terminating thread with return 
code -22 (Invalid argument)
[out#0/mp4 @ 0x55c32f8b2c80] Nothing was written into output file, 
because at least one of its streams received no packets.
frame=    0 fps=0.0 q=0.0 Lsize=       0KiB time=N/A bitrate=N/A speed=N/A
[aac @ 0x55c32f90c640] Qavg: 441.163
Conversion failed!





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