[FFmpeg-user] Green line with vaapi scaling

[André Hänsel]

> Can you retest with git head?
> 
> Build FFmpeg from source and retest.

I don't think I can do that easily, but I found a static build on the FFmpeg website. It's supposed to support VAAPI:

# ./ffmpeg -hwaccels

ffmpeg version N-46272-g3a56ade1f-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
  configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg
  libavutil      56. 18.102 / 56. 18.102
  libavcodec     58. 20.100 / 58. 20.100
  libavformat    58. 17.100 / 58. 17.100
  libavdevice    58.  4.100 / 58.  4.100
  libavfilter     7. 25.100 /  7. 25.100
  libswscale      5.  2.100 /  5.  2.100
  libswresample   3.  2.100 /  3.  2.100
  libpostproc    55.  2.100 / 55.  2.100
Hardware acceleration methods:
vdpau
vaapi


However, when I try this command:

# ./ffmpeg -loglevel trace -vaapi_device /dev/dri/renderD128 -hwaccel vaapi -i bbb.mp4 out.mp4

ffmpeg version N-46272-g3a56ade1f-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
  configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg
  libavutil      56. 18.102 / 56. 18.102
  libavcodec     58. 20.100 / 58. 20.100
  libavformat    58. 17.100 / 58. 17.100
  libavdevice    58.  4.100 / 58.  4.100
  libavfilter     7. 25.100 /  7. 25.100
  libswscale      5.  2.100 /  5.  2.100
  libswresample   3.  2.100 /  3.  2.100
  libpostproc    55.  2.100 / 55.  2.100
Splitting the commandline.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'trace'.
Reading option '-vaapi_device' ... matched as option 'vaapi_device' (set VAAPI hardware device (DRM path or X11 display name)) with argument '/dev/dri/renderD128'.
Reading option '-hwaccel' ... matched as option 'hwaccel' (use HW accelerated decoding) with argument 'vaapi'.
Reading option '-i' ... matched as input url with argument 'bbb.mp4'.
Reading option 'out.mp4' ... matched as output url.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option loglevel (set logging level) with argument trace.
Applying option vaapi_device (set VAAPI hardware device (DRM path or X11 display name)) with argument /dev/dri/renderD128.
[AVHWDeviceContext @ 0x6189cc0] No VA display found for device: /dev/dri/renderD128.
Device creation failed: -22.
Failed to set value '/dev/dri/renderD128' for option 'vaapi_device': Invalid argument
Error parsing global options: Invalid argument


According to strace it doesn't even try to open the device.