VAAPI acceleration not used

[roketscyntist 0]

Hi

 

I have recently taken the time to get Emby properly set up and all content sorted properly, so my setup is almost perfect. One last issue remains, VAAPI hardware transcoding.

Hardware transcoding is enabled in the server setup, and it's pointing to the correct device, /dev/dri/renderD128, but it seems Emby doesn't even try hardware encoding.

As a test, I'm working with an old TV episode encoded using xvid inside an avi container.

Some info: Emby 3.3.1.0 running on Arch, Ivy Bridge hardware. Emby using system ffmpeg (/usr/bin/ffmpeg)

 

Streaming the same file via my browser to force transcoding, it appears it doesn't try h264 hardware encoding.

 

Here are some tests I have done on the server, and my ffmpeg transcode log is attached. Any ideas?

emby@[member="Asgard"] ~]$ whoami
emby
[emby@[member="Asgard"] ~]$ vainfo 
error: can't connect to X server!
libva info: VA-API version 1.1.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_1_1
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.1 (libva 2.1.0)
vainfo: Driver version: Intel i965 driver for Intel(R) Ivybridge Desktop - 2.1.0
vainfo: Supported profile and entrypoints
      VAProfileMPEG2Simple            : VAEntrypointVLD
      VAProfileMPEG2Simple            : VAEntrypointEncSlice
      VAProfileMPEG2Main              : VAEntrypointVLD
      VAProfileMPEG2Main              : VAEntrypointEncSlice
      VAProfileH264ConstrainedBaseline: VAEntrypointVLD
      VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
      VAProfileH264Main               : VAEntrypointVLD
      VAProfileH264Main               : VAEntrypointEncSlice
      VAProfileH264High               : VAEntrypointVLD
      VAProfileH264High               : VAEntrypointEncSlice
      VAProfileH264StereoHigh         : VAEntrypointVLD
      VAProfileVC1Simple              : VAEntrypointVLD
      VAProfileVC1Main                : VAEntrypointVLD
      VAProfileVC1Advanced            : VAEntrypointVLD
      VAProfileNone                   : VAEntrypointVideoProc
      VAProfileJPEGBaseline           : VAEntrypointVLD

[emby@[member="Asgard"] ~]$ ffmpeg -vaapi_device /dev/dri/renderD128 -i test.avi -vf 'format=nv12,hwupload' -c:v h264_vaapi output.mp4           
ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 7.3.0 (GCC)
  configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-avisynth --enable-avresample --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libass --enable-libbluray --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-shared --enable-version3 --enable-omx
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
Input #0, avi, from 'test.avi':
  Metadata:
    encoder         : VirtualDubMod 1.5.4.1 (build 2178/release)
    IAS1            : English
  Duration: 00:22:22.01, start: 0.000000, bitrate: 1456 kb/s
    Stream #0:0: Video: mpeg4 (Advanced Simple Profile) (XVID / 0x44495658), yuv420p, 720x416 [SAR 1:1 DAR 45:26], 1333 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc
    Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 48000 Hz, stereo, s16p, 109 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (h264_vaapi))
  Stream #0:1 -> #0:1 (mp3 (native) -> aac (native))
Press [q] to stop, [?] for help
Output #0, mp4, to 'output.mp4':
  Metadata:
    IAS1            : English
    encoder         : Lavf57.83.100
    Stream #0:0: Video: h264 (h264_vaapi) (High) (avc1 / 0x31637661), vaapi_vld, 720x416 [SAR 1:1 DAR 45:26], q=0-31, 25 fps, 12800 tbn, 25 tbc
    Metadata:
      encoder         : Lavc57.107.100 h264_vaapi
    Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s
    Metadata:
      encoder         : Lavc57.107.100 aac
Invalid return value 0 for stream protocol time=00:22:20.37 bitrate=1743.0kbits/s dup=1 drop=0 speed=17.2x    
    Last message repeated 6 times
frame=33551 fps=431 q=-0.0 Lsize=  286193kB time=00:22:22.01 bitrate=1747.0kbits/s dup=1 drop=0 speed=17.2x    
video:264045kB audio:21232kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.321293%
[aac @ 0x55fcd2678f00] Qavg: 683.641
[emby@[member="Asgard"] ~]$ ls -alhtr
total 513M
drwxr-xr-x  2 emby emby 4.0K Apr 14 21:58 localization
drwxr-xr-x  3 emby emby 4.0K Apr 14 21:58 root
drwxr-xr-x  5 emby emby 4.0K Apr 14 22:27 metadata
drwxr-xr-x 13 emby emby 4.0K Apr 16 22:06 cache
drwxr-xr-x  4 emby emby 4.0K Apr 19 15:48 config
-rw-------  1 emby emby  437 Apr 19 17:54 .bash_history
drwxr-xr-x  7 emby emby 4.0K Apr 24 23:33 data
drwxr-xr-x  2 emby emby  60K Apr 26 14:46 transcoding-temp
drwxr-xr-x  2 emby emby 4.0K May  1 00:00 logs
drwxr-xr-x 23 root root 4.0K May  1 00:00 ..
drwxr-xr-x  2 emby emby 4.0K May  1 17:20 .ssh
-rwxr-xr-x  1 emby emby 234M May  1 17:24 test.avi
drwxr-xr-x 11 emby emby 4.0K May  1 17:24 .
-rw-r--r--  1 emby emby 280M May  1 17:26 output.mp4
[emby@[member="Asgard"] ~]$ file output.mp4 
output.mp4: ISO Media, MP4 Base Media v1 [IS0 14496-12:2003]
[emby@[member="Asgard"] ~]$ file test.avi  
test.avi: RIFF (little-endian) data, AVI, 720 x 416, 25.00 fps, video: XviD, audio: MPEG-1 Layer 3 (stereo, 48000 Hz)

ffmpeg-transcode-19a2708b-093f-45f1-834b-b6b92ca1307c.txt

Edited May 1, 2018 by roketscyntist

[Luke 37215]

It's not used when the input is mpeg4 as vaapi doesn't support that.

[roketscyntist 0]

Ah OK, so VAAPI has to support both the input and output formats?

[Luke 37215]

It appears so, yes.

[tdiguy 96]

One other thing to try since it was not noted here. Make sure emby is part of the video group. 

[Luke 37215]

Yes that's good advice as well, thanks.