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• Running frei0r filters with ffmpeg - "Could not find module 'pixeliz0r'."

  4 avril 2016, par ksloan

  I installed frei0r using homebrew

  MacK:tmp kevin$ brew list frei0r
  
  /usr/local/Cellar/frei0r/1.4/include/frei0r.h
  
  /usr/local/Cellar/frei0r/1.4/lib/frei0r-1/ (119 files)
  
  /usr/local/Cellar/frei0r/1.4/lib/pkgconfig/frei0r.pc
  
  /usr/local/Cellar/frei0r/1.4/share/doc/ (4 files)

  Then I installed ffmpeg with the --with-frei0r flag, and everything compiled fine

  brew install ffmpeg --with-fdk-aac --with-ffplay --with-freetype --with-libass --with-libquvi --with-libvorbis --with-libvpx --with-opus --with-x265 --with-frei0r

  I tried telling ffmpeg where my frie0r filters were installed with

  export FREI0R_PATH=/usr/local/Cellar/frei0r/1.4/lib/frei0r-1/

  I even created symlinks from the default locations ffmpeg checks...

  MacK:tmp kevin$ ls -l  /usr/local/lib/frei0r-1
  
  lrwxr-xr-x  1 kevin  admin  33  4 Apr 04:43 /usr/local/lib/frei0r-1 -> ../Cellar/frei0r/1.4/lib/frei0r-1

  But I’m still seeing this error :

  [Parsed_frei0r_0 @ 0x7f8938f003c0] Could not find module 'perspective'.
  
  [AVFilterGraph @ 0x7f8938f00160] Error initializing filter 'frei0r' with args 'perspective'
  
  Error initializing complex filters.
  
  Invalid argument

  Full output :

  MacK:tmp kevin$ ffmpeg -i 1.mp4 -filter_complex "frei0r=perspective" out.mp4
  
  ffmpeg version 3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
  
    built with Apple LLVM version 7.0.2 (clang-700.1.81)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/3.0.1 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-opencl --enable-libx264 --enable-libmp3lame --enable-libxvid --enable-libfreetype --enable-libvorbis --enable-libvpx --enable-libass --enable-ffplay --enable-libfdk-aac --enable-libopus --enable-frei0r --enable-libx265 --enable-nonfree --enable-vda
  
    libavutil      55. 17.103 / 55. 17.103
  
    libavcodec     57. 24.102 / 57. 24.102
  
    libavformat    57. 25.100 / 57. 25.100
  
    libavdevice    57.  0.101 / 57.  0.101
  
    libavfilter     6. 31.100 /  6. 31.100
  
    libavresample   3.  0.  0 /  3.  0.  0
  
    libswscale      4.  0.100 /  4.  0.100
  
    libswresample   2.  0.101 /  2.  0.101
  
    libpostproc    54.  0.100 / 54.  0.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf57.25.100
  
    Duration: 00:00:08.34, start: 0.023220, bitrate: 4293 kb/s
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 4161 kb/s, 60 fps, 60 tbr, 15360 tbn, 120 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 129 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  [Parsed_frei0r_0 @ 0x7f8938f003c0] Could not find module 'perspective'.
  
  [AVFilterGraph @ 0x7f8938f00160] Error initializing filter 'frei0r' with args 'perspective'
  
  Error initializing complex filters.
  
  Invalid argument

  I’ve run out of ideas to try next, what am I missing ? Any help would be greatly appreciated.

• why is this intel hardware accellerated transcoding in ffmpeg not working ?

  1er avril 2016, par Jabb

  I compiled ffmpeg with intel hardware accelleration, but I cannot transcode the simpsons 720p video from http://www.h264info.com/clips.html with success.

  this is the error I get :

  Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

  and this is the full output from ffmpeg. What could be wrong ?

  root@ubuntu:/tmp# ffmpeg -i test.mp4 -vcodec h264_qsv out1.yuv
  
  ffmpeg version N-79177-ga677121 Copyright (c) 2000-2016 the FFmpeg developers
  
    built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.1)
  
    configuration: --prefix=/root/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-libmfx
  
    libavutil      55. 19.100 / 55. 19.100
  
    libavcodec     57. 32.100 / 57. 32.100
  
    libavformat    57. 29.101 / 57. 29.101
  
    libavdevice    57.  0.101 / 57.  0.101
  
    libavfilter     6. 40.102 /  6. 40.102
  
    libswscale      4.  0.100 /  4.  0.100
  
    libswresample   2.  0.101 /  2.  0.101
  
    libpostproc    54.  0.100 / 54.  0.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 1
  
      compatible_brands: isomavc1
  
      creation_time   : 2007-02-19 05:03:04
  
    Duration: 00:02:17.30, start: 0.000000, bitrate: 4283 kb/s
  
      Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x544, 4221 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
  
      Metadata:
  
        creation_time   : 2007-02-19 05:03:04
  
        handler_name    : GPAC ISO Video Handler
  
      Stream #0:1(und): Audio: aac (HE-AAC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 64 kb/s (default)
  
      Metadata:
  
        creation_time   : 2007-02-19 05:03:08
  
        handler_name    : GPAC ISO Audio Handler
  
  [h264_qsv @ 0x2f626a0] Error initializing an internal MFX session
  
  Output #0, rawvideo, to 'out1.yuv':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 1
  
      compatible_brands: isomavc1
  
      Stream #0:0(und): Video: h264, none, q=2-31, 128 kb/s, 23.98 fps (default)
  
      Metadata:
  
        creation_time   : 2007-02-19 05:03:04
  
        handler_name    : GPAC ISO Video Handler
  
        encoder         : Lavc57.32.100 h264_qsv
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (h264_qsv))
  
  Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

• Framerate live streaming webm with dash and ffmpeg

  14 mai 2016, par Jones

  I am streaming a live video with ffmpeg and dash.js using
  these instructions. It works well except that the video is playing at a too high framerate. No framerate is specified in the manifest.
  Creating the Chunks :

  SET VP9_LIVE_PARAMS=-speed 6 -threads 8 -static-thresh 0 -max-intra-rate 300 -deadline realtime -lag-in-frames 0 -error-resilient 1
  
  ffmpeg -re -r 25 -i tcp://localhost:8891 ^
  
  -map 0:0 ^
  
    -pix_fmt yuv420p ^
  
    -c:v libvpx-vp9 ^
  
      -s 800x600 -keyint_min 25 -g 25 %VP9_LIVE_PARAMS% ^
  
      -f webm_chunk ^
  
      -header "webm_live/glass_360.hdr" ^
  
      -chunk_start_index 1 ^
  
    webm_live\glass_360_%%d.chk ^

  Creating the Manifest :

  ffmpeg ^
  
    -f webm_dash_manifest -live 1 ^
  
     -r 25 ^
  
    -i webm_live/glass_360.hdr ^
  
    -c copy ^
  
    -map 0 ^
  
    -r 25 ^
  
    -framerate 25 ^
  
    -f webm_dash_manifest -live 1 ^
  
      -adaptation_sets "id=0,streams=0" ^
  
      -chunk_start_index 1 ^
  
      -chunk_duration_ms 1000 ^
  
      -time_shift_buffer_depth 7200 ^
  
      -minimum_update_period 7200 ^
  
    webm_live/glass_live_manifest.mpd

  Manifest :

  <?xml version="1.0" encoding="UTF-8"?>
  
  <mpd xmlns="urn:mpeg:DASH:schema:MPD:2011" type="dynamic" minbuffertime="PT1S" profiles="urn:mpeg:dash:profile:isoff-live:2011" availabilitystarttime="2016-03-30T13:02:53Z" timeshiftbufferdepth="PT7200S" minimumupdateperiod="PT7200S">
  
  <period start="PT0S">
  
  <adaptationset mimetype="video/webm" codecs="vp9" bitstreamswitching="true" subsegmentalignment="true" subsegmentstartswithsap="1">
  
  <contentcomponent type="video"></contentcomponent>
  
  <segmenttemplate timescale="1000" duration="1000" media="glass_$RepresentationID$_$Number$.chk" startnumber="1" initialization="glass_$RepresentationID$.hdr"></segmenttemplate>
  
  <representation bandwidth="1000000" width="800" height="600" codecs="vp9" mimetype="video/webm" startswithsap="1"></representation>
  
  </adaptationset>
  
  </period>
  
  </mpd>

  Any Ideas how to fix this ?