[FFmpeg-user] init_hw_device qsv for hwaccel on Skylake iGPU + Nvidia GF GPU
Wang, Fei W
fei.w.wang at intel.com
Mon Sep 2 08:01:39 EEST 2024
On Sun, 2024-09-01 at 10:53 +0200, Terje J. Hanssen wrote:
> I have not succeeded yet to configure ffmpeg QSV access to an enabled
> iGPU onboard an Intel Core i7-6700K (Skylake). This is a legacy,
> rebuilt workstation with additional, discrete Nvidia GeForce GTX 960
> GPU
> on a MSI-Z170-A Pro mobo.
>
> Any suggestions how to solve this?
You can use vainfo to find the Intel gpu device correctly:
"vainfo --display drm --device /dev/dri/renderD12X"
Then specify device in ffmpeg cmdline with "-qsv_device
/dev/dri/renderD12X"
BTW, for legacy platforms, suggest to use libvpl with Media SDK for the
runtime implementation:
https://github.com/intel/libvpl
https://github.com/Intel-Media-SDK/MediaSDK
Thanks
Fei
>
> My tested ffmpeg code lines and system information below.
>
> 1) Tested first this simple ffmpeg decode bencmark code line from
> https://trac.ffmpeg.org/wiki/Hardware/QuickSync#Decode-only
> This works fine on single GPU Caby Lake/UHD 620 and on Alder Lake/Arc
> A750, but on Skylake with dual iGPU HD 530 and a Nvidia GeForce GTX
> 960
> card, these errors are reported:
>
> ffmpeg -hide_banner -hwaccel qsv -hwaccel_output_format qsv -i
> h264_8bit_yuv420p.mp4 -f null -
> ....
> [AVHWDeviceContext @ 0x55bed1a7c500] Error creating a MFX
> session: -9.
> Device creation failed: -1313558101.
> [vist#0:0/h264 @ 0x55bed1a656c0] [dec:h264_qsv @ 0x55bed1a64300]
> No
> device available for decoder: device type qsv needed for codec
> h264_qsv.
> [vist#0:0/h264 @ 0x55bed1a656c0] [dec:h264_qsv @ 0x55bed1a64300]
> Hardware device setup failed for decoder: Unknown error occurred
> [vost#0:0/wrapped_avframe @ 0x55bed1a63740] Error initializing a
> simple filtergraph
> Error opening output file -.
> Error opening output files: Unknown error occurred
> bench: maxrss=59076KiB
>
>
>
> 2) Additional tests where I experimented to apply suggestions from
> https://trac.ffmpeg.org/wiki/Hardware/QuickSync#Transcode
>
> -qsv_device is an qsv customized option can be used to specify
> a
> hardware device and avoid the default device initialization
> failure
> when multiple devices usable (eg: an Intel integrated GPU and an
> AMD/Nvidia discrete graphics card).
>
>
> ffmpeg -hide_banner -hwaccel qsv -qsv_device /dev/dri/renderD128
> -i
> h264_8bit_yuv420p.mp4 -f null -
> DRM_IOCTL_VERSION, unsupported drm device by media driver: nvid
> DRM_IOCTL_VERSION, unsupported drm device by media driver: nvid
> [AVHWDeviceContext @ 0x56330da80dc0] libva:
> /usr/lib64/dri/iHD_drv_video.so init failed
> [AVHWDeviceContext @ 0x56330da80dc0] Failed to initialise VAAPI
> connection: 18 (invalid parameter).
> Device creation failed: -5.
> Failed to set value '/dev/dri/renderD128' for option
> 'qsv_device':
> Input/output error
> Error parsing global options: Input/output error
>
>
> ffmpeg -hide_banner -hwaccel qsv -qsv_device /dev/dri/renderD129
> -i
> h264_8bit_yuv420p.mp4 -f null -
> [AVHWDeviceContext @ 0x55deafcbcec0] Error creating a MFX
> session: -9.
> Device creation failed: -1313558101.
> Failed to set value '/dev/dri/renderD129' for option
> 'qsv_device':
> Unknown error occurred
> Error parsing global options: Unknown error occurred
>
>
> ffmpeg -hide_banner -init_hw_device qsv=hw -filter_hw_device hw
> -hwaccel_output_format qsv -hwaccel qsv -qsv_device
> /dev/dri/renderD128 -i h264_8bit_yuv420p.mp4 -f null -
> [AVHWDeviceContext @ 0x563f568e7e00] Error creating a MFX
> session: -9.
> Device creation failed: -1313558101.
> Failed to set value 'qsv=hw' for option 'init_hw_device': Unknown
> error occurred
> Error parsing global options: Unknown error occurred
>
>
> 3) and also tried to apply the answer from
> https://stackoverflow.com/questions/44747381/i-cant-use-hw-encoder-of-qsv-by-ffmpeg#47145215
>
> <https://stackoverflow.com/posts/47145215/timeline>
>
> It looks like ffmpeg is looking in its list of devices for a qsv
> type device and not finding it. You can create a ffmpeg hardware
> device with -init_hw_device qsv=qsv:MFX_IMPL_hw and then choose
> it
> with -hwaccel qsv -hwaccel_device qsv. You should only need to do
> the init once.
>
>
> ffmpeg -hide_banner -init_hw_device qsv=qsv:MFX_IMPL_hw
> -hwaccel_device qsv -hwaccel_output_format qsv -i
> h264_8bit_yuv420p.mp4 -f null -
> [AVHWDeviceContext @ 0x555f1a59ee00] Error creating a MFX
> session: -9.
> Device creation failed: -1313558101.
> Failed to set value 'qsv=qsv:MFX_IMPL_hw' for option
> 'init_hw_device': Unknown error occurred
> Error parsing global options: Unknown error occurred
>
>
> ffmpeg -hide_banner -init_hw_device qsv=qsv:MFX_IMPL_hw -hwaccel
> qsv
> -hwaccel_output_format qsv -i h264_8bit_yuv420p.mp4 -f null -
> [AVHWDeviceContext @ 0x557b2d5ede00] Error creating a MFX
> session: -9.
> Device creation failed: -1313558101.
> Failed to set value 'qsv=qsv:MFX_IMPL_hw' for option
> 'init_hw_device': Unknown error occurred
> Error parsing global options: Unknown error occurred
>
> --------------------------
>
> System info and drivers:
>
>
> inxi -CGMSz
> System:
> Kernel: 6.10.5-1-default arch: x86_64 bits: 64
> Desktop: GNOME v: 46.3.1 Distro: openSUSE Tumbleweed-Slowroll
> 20240803
> Machine:
> Type: Desktop Mobo: MSI model: Z170-A PRO (MS-7971) v: 1.0
> serial: <superuser required> UEFI: American Megatrends v:
> 1.K0
> date: 07/10/2018
> CPU:
> Info: quad core model: Intel Core i7-6700K bits: 64 type: MT
> MCP
> cache:
> L2: 1024 KiB
> Speed (MHz): avg: 800 min/max: 800/4200 cores: 1: 800 2: 800
> 3:
> 800 4: 800
> 5: 800 6: 800 7: 800 8: 800
> Graphics:
> Device-1: Intel HD Graphics 530 driver: i915 v: kernel
> Device-2: NVIDIA GM206 [GeForce GTX 960] driver: nvidia v:
> 550.100
> Display: wayland server: X.org v: 1.21.1.12 with: Xwayland v:
> 24.1.1
> compositor: gnome-shell driver: X: loaded: modesetting
> unloaded: fbdev,vesa
> gpu: nvidia,nvidia-nvswitch resolution: 1920x1080~60Hz
> API: OpenGL v: 4.6.0 vendor: nvidia v: 550.100 renderer:
> NVIDIA
> GeForce
> GTX 960/PCIe/SSE2
> API: Vulkan v: 1.3.290 drivers: N/A surfaces: xcb,xlib,wayland
> API: EGL Message: EGL data requires eglinfo. Check --
> recommends.
>
>
> lspci -k | grep -EA3 'VGA|3D|Display'
> 00:02.0 Display controller: Intel Corporation HD Graphics 530
> (rev 06)
> DeviceName: Onboard IGD
> Subsystem: Micro-Star International Co., Ltd. [MSI] Device
> 7971
> Kernel driver in use: i915
> --
> 01:00.0 VGA compatible controller: NVIDIA Corporation GM206
> [GeForce
> GTX 960] (rev a1)
> Subsystem: Micro-Star International Co., Ltd. [MSI] Device
> 3201
> Kernel driver in use: nvidia
> Kernel modules: nouveau, nvidia_drm, nvidia
>
>
>
>
>
>
>
>
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