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Yggdrasil

Member

Registered: 2009-07-21

Posts: 37

blur faces with ffmpeg and frei0r

Hi,

can anybody get the facebl0r filter of frei0r in ffmpeg working? Or knows of any other way to get blur faces in ffmpeg.

I have rebuild the ffmpeg package with frei0r support by just adding "--enable-frei0r". Then i used the following command, but it just crashes:

$ ffmpeg -i example.webm -vf 'frei0r=facebl0r' -t 01:00 -an -c:v libx264 -crf 0 -preset:v ultrafast test.mkv
ffmpeg version 2.8.3 Copyright (c) 2000-2015 the FFmpeg developers
  built with gcc 5.2.0 (GCC)
  configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-avisynth --enable-avresample --enable-fontconfig --enable-gnutls --enable-gpl --enable-ladspa --enable-libass --enable-libbluray --enable-libdcadec --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-shared --enable-version3 --enable-x11grab --enable-nonfree --enable-libfdk-aac --enable-libaacplus --enable-frei0r
  libavutil      54. 31.100 / 54. 31.100
  libavcodec     56. 60.100 / 56. 60.100
  libavformat    56. 40.101 / 56. 40.101
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 40.101 /  5. 40.101
  libavresample   2.  1.  0 /  2.  1.  0
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  2.101 /  1.  2.101
  libpostproc    53.  3.100 / 53.  3.100
Input #0, matroska,webm, from 'example.webm':
  Metadata:
    encoder         : Lavf56.40.101
  Duration: 01:34:06.70, start: 0.007000, bitrate: 336 kb/s
    Stream #0:0(eng): Video: vp9 (Profile 0), yuv420p(tv), 854x480, SAR 1:1 DAR 427:240, 29.97 fps, 29.97 tbr, 1k tbn, 1k tbc (default)
    Stream #0:1(eng): Audio: opus, 48000 Hz, stereo, fltp (default)
OpenCV Error: Unspecified error (The node does not represent a user object (unknown type?)) in cvRead, file /build/opencv/src/opencv-2.4.12.2/modules/core/src/persistence.cpp, line 5008
terminate called after throwing an instance of 'cv::Exception'
  what():  /build/opencv/src/opencv-2.4.12.2/modules/core/src/persistence.cpp:5008: error: (-2) The node does not represent a user object (unknown type?) in function cvRead

The same happens with the facedetect filter.

Anyone any idea? Is it a bug in the packages, frei0r-plugins or opencv? Or is it an upstream bug?

Last edited by Yggdrasil (2015-12-09 16:43:51)