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@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!