[Cin] Mesa 24.3 and Vulkan

[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 !!


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