Continued and extracted from
[Cin] Video accelerators support, builds and use
https://lists.cinelerra-gg.org/pipermail/cin/2024-December/009226.html
Den 12.12.2024 00:54, skrev Terje J. Hanssen:
Den 11.12.2024 23:56, skrev Andrew Randrianasulu:
To clarify some pieces once again, I
put up some basic statements or questions:
..........snip
So what happened when adding
oneVPL (qsv) support to the build
system; dynamic linked to system
or static added embedded into the
build?
dynamic
.....snip
Could in principle similar
methods be extended to include
broader video acceleration support
for AMD/amf and NVIDIA/nvenc?
nvenc already supported, I
think? At some point I tried it with
GF710 on livedvd and it was working for
me. try to test it if you have
proprietary nvidia drivers.
Apparently Cingg then should supports NVENC via some
dynamic linked external Nvidia lib, equivalent to what
we did for for QSV via oneVPL support.
While h264_nvenc.mp4 rendering works, h265_nvenc.mp4
fails with the following errors, see detail below:
[hevc_nvenc
@ 0x7ff79c015640] No capable devices found
FFMPEG::open_encoder err: Generic error in an
external library
Yes, seemingly:
Cin/bin/ffmpeg/video> ls *nvenc*
h264_nvenc.mp4 h264_nvenc.qt h265_nvenc.mp4
NVENC Presets
cat
h264_nvenc.mp4
mp4 h264_nvenc
# encode for nvidia graphics hw only
preset medium
profile main
cat h265_nvenc.mp4
mp4 hevc_nvenc
# encode for nvidia graphics hw only
preset medium
profile main
Maybe I can do an attempt later, if I get life in the
old GeForce GTX 960 in my Skylake workstation.
Setup
----------
Booted BIOS and checked that the integrated Intel gpu
and multimonitor setup were enabled.
Installed the suse-prime package for
nvidia/intel
gpu selection (for NVIDIA optimus laptops with
bbswitch support) and could then run the command
prime-select on-demand
and verified that both the Intel and Nvidia drivers
were available
inxi -G
Graphics:
Device-1: Intel HD Graphics 530 driver: i915 v:
kernel
Device-2: NVIDIA GM206 [GeForce GTX 960] driver:
nvidia v: 550.135
Display: wayland server: X.org v: 1.21.1.14 with:
Xwayland v: 24.1.4
compositor: gnome-shell v: 47.2 driver: X: loaded:
modesetting,nvidia
unloaded: fbdev,vesa dri: iris gpu: i915
resolution: 1920x1080~60Hz
API: OpenGL v: 4.6 vendor: intel mesa v: 24.3.1
renderer: Mesa Intel HD
Graphics 530 (SKL GT2)
API: EGL Message: EGL data requires eglinfo. Check
--recommends.
==============
Test h264_nvenc.mp4
-------------------
OK
./CinGG-20241120-x86_64.AppImage
Cinelerra Infinity - built: Nov 20 2024 22:06:05
Loads hdv09_04.m27
Shift-R
mp4
h264_nvenc (video preset)
pixels: yuv420p (default)
** rendered 5972 frames in 27.391 secs, 218.028 fps
ffprobe -hide_banner hdv09_04_h264_nvenc_yuv420p.mp4
Stream #0:0[0x1](und): Video: h264 (Main) (avc1 /
0x31637661), yuvj420p(pc, smpte170m/unknown/unknown),
1440x1080 [SAR 4:3 DAR 16:9], 2156 kb/s, 25 fps, 25
tbr, 12800 tbn (default)
-------
Tried also h264_nvenc with
pixels: nv12
which for slowed down to 45% speed !?
Render::render_single: Session finished.
** rendered 5972 frames in 60.368 secs, 98.927 fps
ffprobe -hide_banner hdv09_04_h264_nvenc_nv12.mp4
Stream #0:0[0x1](und): Video: h264 (Main) (avc1 /
0x31637661), yuvj420p(pc, smpte170m/unknown/unknown),
1440x1080 [SAR 4:3 DAR 16:9], 2154 kb/s, 25 fps, 25
tbr, 12800 tbn (default)
===================
Test h265_nvenc.mp4
-------------------
Did not render, neither with pixels yuv420p nor nv12:
FFMPEG::open_encoder
err: Generic error in an external library
[hevc_nvenc @ 0x7ff79c015640] No capable devices found
FFMPEG::open_encoder err: Generic error in an
external library
int FFMPEG::open_encoder(const char*, const char*):
open failed
hevc_nvenc:/run/media/terje/video/hdv09_04_h265_nvenc_yuv420p.mp4
Render::render_single: Session finished.
===================
GeForce GTX 960 (GM206) should be capable to manage
NVENC h265/hevc YUV 420 encoding
https://en.wikipedia.org/wiki/Nvidia_NVENC#Third_generation,_Maxwell_GM20x
https://developer.nvidia.com/video-encode-and-decode-gpu-support-matrix-new
Tested hevc_nvenc full transcoding with FFmpeg 7.1
ffmpeg -hide_banner -hwaccel cuda
-hwaccel_output_format cuda -i hdv09_04.m2t -c:v
hevc_nvenc hdv09_04_ff_hevc_nvenc.mp4
frame= 5963 fps=270 q=34.0 Lsize= 64316KiB
time=00:03:58.77 bitrate=2206.6kbits/s speed=10.8x
[aac @ 0x55a38d4c4d40] Qavg: 488.890
------------------
ffprobe -hide_banner hdv09_04_ff_hevc_nvenc.mp4
Stream #0:0[0x1](und): Video: hevc (Main) (hev1 /
0x31766568), yuv420p(tv, bt709, top coded first
(swapped)), 1440x1080 [SAR 4:3 DAR 16:9], 2074 kb/s,
24.99 fps, 25 tbr, 12800 tbn (default)