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• ffmpeg Video thumbnail Service

  26 avril 2014, par user3576217

  I need active FFMPEG Video thumbnail Service. I have installed just FFMPEG but see Video thumbnail Service not working. I checked ffmpeg version on SSH and got this

  ffmpeg version 2.2.1 Copyright (c) 2000-2014 the FFmpeg developers
    built on Apr 13 2014 13:00:18 with gcc 4.4.6 (GCC) 20120305 (Red Hat 4.4.6-4)
    configuration : —prefix=/usr —libdir=/usr/lib64 —shlibdir=/usr/lib64 —mandir=/usr/share/man —enable-shared —enable-runtime-cpudetect —enable-gpl —enable-version3 —enable-postproc —enable-avfilter —enable-pthreads —enable-x11grab —enable-vdpau —disable-avisynth —enable-frei0r —enable-libopencv —enable-libdc1394 —enable-libgsm —enable-libmp3lame —enable-libnut —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libopenjpeg —enable-librtmp —enable-libspeex —enable-libtheora —enable-libvorbis —enable-libvpx —enable-libx264 —enable-libxavs —enable-libxvid —extra-cflags=’-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector —param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC’ —disable-stripping

  is their any way to enable just video thumbnail service ?

• FFMPEG 2 Channel AIF files = fail

  23 avril 2014, par ImaginedDesign

  I wonder if anyone has a solution for AIF files that are "2 Channels", which do not compile in ffmpeg. But if you take the same aif file and open it up in a editor and recompile it as Stereo (L R), it works as expected.

  My ffmpeg command and console output :

  $ ffmpeg -i input.aif -ar 44100 -ab 128k -acodec libmp3lame -ac 2 -y output.mp3
  
  ffmpeg version 2.0.1 Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Mar  2 2014 19:58:58 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
  
    configuration: --enable-gpl --enable-version3 --enable-shared --enable-nonfree --enable-postproc --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid
  
    libavutil      52. 38.100 / 52. 38.100
  
    libavcodec     55. 18.102 / 55. 18.102
  
    libavformat    55. 12.100 / 55. 12.100
  
    libavdevice    55.  3.100 / 55.  3.100
  
    libavfilter     3. 79.101 /  3. 79.101
  
    libswscale      2.  3.100 /  2.  3.100
  
    libswresample   0. 17.102 /  0. 17.102
  
    libpostproc    52.  3.100 / 52.  3.100
  
  [aiff @ 0x1d94940] ID3v2.32 tag skipped, cannot handle version
  
  input.aif: Input/output error

• Retranslating video stream using ffmpeg

  6 mai 2014, par zdimon77

  I want to redirect video stream from rtmp to hls format using nginx rtmp-module.

  This my nginx config

      server {
  
      exec_options on;
  
      listen 1936;
  
      chunk_size 4000;
  
  
  
  
  
      application myapp {
  
       live on;
  
       exec /usr/bin/avconv -loglevel verbose -re -i rtmp://localhost:1936/myapp/$name -vcodec libx264 -vprofile baseline -acodec libmp3lame -ar 44100 -ac 1 -f flv rtmp://localhost:1935/hls/$name;
  
  
  
  
  
  }
  
  
  
  
  
  }
  
  
  
  server {
  
  
  
     listen 1935;
  
      chunk_size 4000;
  
  
  
      application hls {
  
          live on;
  
          hls on;
  
          hls_path /tmp/hls;
  
      }
  
  
  
  
  
  
  
  }

  But it doesnt work.
  When I try to publish my stream in console (without exec command in nginx.conf)

  ffmpeg -loglevel debug -re -i rtmp://localhost:1936/myapp/test -vcodec libx264 -vprofile baseline -acodec libmp3lame -ar 44100 -ac 1 -f flv rtmp://localhost:1935/hls/test

  I see this in console

  root@dcv23 :/usr/share/nginx/html# avconv -i rtmp ://localhost:1935/myapp/testname -vcodec copy -an -f flv rtmp ://localhost:1936/hls/testname

  avconv version 0.8.10-6:0.8.10-1, Copyright (c) 2000-2013 the Libav developers

  built on Feb 5 2014 17:15:30 with gcc 4.7.2

  [flv @ 0x98a3800] invalid stream

  [flv @ 0x98a3800] Estimating duration from bitrate, this may be inaccurate

  Input #0, flv, from ’rtmp ://localhost:1935/myapp/testname’ :

  Duration : N/A, start : 448.536000, bitrate : N/A

  Stream #0.0: Audio: nellymoser, 8000 Hz, mono, s16
  
  
  
  Stream #0.1: Video: flv, yuv420p, 800x600, 1k tbr, 1k tbn

  Output #0, flv, to ’rtmp ://localhost:1936/hls/testname’ :

  Metadata :

  encoder         : Lavf53.21.1
  
  
  
  Stream #0.0: Video: flv, yuv420p, 800x600, q=2-31, 1k tbn, 1k tbc

  Stream mapping :

  Stream #0:1 -> #0:0 (copy)

  Press ctrl-c to stop encoding

  ^Cframe= 200 fps= 7 q=-1.0 Lsize= 1031kB time=35.44 bitrate= 238.2kbits/s

  And process going but m3u8 files dont create.
  Can someone help me please ?
  Thank you.