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• How to setup ffmpeg for CentOS release 6.5 server

  23 juillet 2015, par hitesh

  I need to create a screen shot from video,

  I have followed this tutorial to do the intial setup in window 8, php 5.3

  1) I downloaded the ffmpeg from here -[
  http://ffmpeg.zeranoe.com/builds/ ] for 64 bit operating system.

  2) I followed the https://www.youtube.com/watch?v=gU49GiWGGAI , video and did all configuration successfully and phpinfo() shows that ffmpeg has been installed.

  3) Then I tried this to find out whether it is working or not,

  It worked successfully

  4) Next I followed this video tutorial here and thumbnails were created successfully.

  below is my code

  /**
  
   * FFMPEG-PHP Test Script
  
   *
  
   * Special thanks to http://www.sajithmr.me/ffmpeg-sample-code for this code example!
  
   * See the tutorial at http://myownhomeserver.com on how to install ffmpeg-php.
  
   */
  
  error_reporting(1);
  
  error_reporting(E_ALL ^ E_NOTICE);
  
  // Check if the ffmpeg-php extension is loaded first
  
  extension_loaded('ffmpeg') or die('Error in loading ffmpeg');
  
  
  
  // Determine the full path for our video
  
  $vid = realpath('./videos/myvideo.mp4');
  
  $videosize = filesize($vid);
  
  $remoteVideo = 'http://video-js.zencoder.com/oceans-clip.mp4';
  
  
  
  //ffmpeg
  
  
  
  $ffmpeg = dirname(__FILE__) . "\\ffmpeg\\bin\\ffmpeg";
  
  $imageFile = "1.png";
  
  $image2 = "2.png";
  
  $size = "120x90";
  
  $getfromsecond = 7;
  
  $cmd = "$ffmpeg -i $vid -an -ss $getfromsecond -s $size $imageFile";
  
  $cmd2 = "$ffmpeg -i $remoteVideo -an -ss $getfromsecond -s $size $image2";
  
  if(!shell_exec($cmd)){
  
      echo "Thumbnail created";
  
  }else{
  
      echo "Error Creating thumbnail";
  
  }
  
  
  
  if(!shell_exec($cmd2)){
  
      echo "Thumbnail for remote url was created";
  
  }else{
  
      echo "Error Creating thumbnail for remote url ";
  
  }

  ---

    OUTPUT
  
      Thumbnail created
  
      Thumbnail for remote url was created

  Now above code works as expected in my local, in window machine , I need to do it in my server environment(Linux server) with php 5.5. How do I do the configuration for ffmpeg in CentOS release 6.5 server with php 5.5.

  I have followed this tutorial to install it in server

  1.http://supportlobby.com/blog/ffmpeg-installation-on-centos-6-5/

  2.http://tecadmin.net/install-ffmpeg-on-linux/

  OUTPUT IN CONSOLE

  [root@BRANDWEB01D ~]# ffmpeg -version
  
  ffmpeg version 2.2.1
  
  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
  
  libavutil      52. 66.100 / 52. 66.100
  
  libavcodec     55. 52.102 / 55. 52.102
  
  libavformat    55. 33.100 / 55. 33.100
  
  libavdevice    55. 10.100 / 55. 10.100
  
  libavfilter     4.  2.100 /  4.  2.100
  
  libswscale      2.  5.102 /  2.  5.102
  
  libswresample   0. 18.100 /  0. 18.100
  
  libpostproc    52.  3.100 / 52.  3.100
  
  [root@BRANDWEB01D ~]# which ffmpeg
  
  /usr/bin/ffmpeg
  
  [root@BRANDWEB01D ~]# ffmpeg -formats
  
  ffmpeg version 2.2.1 Copyright (coffee) 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
  
    libavutil      52. 66.100 / 52. 66.100
  
    libavcodec     55. 52.102 / 55. 52.102
  
    libavformat    55. 33.100 / 55. 33.100
  
    libavdevice    55. 10.100 / 55. 10.100
  
    libavfilter     4.  2.100 /  4.  2.100
  
    libswscale      2.  5.102 /  2.  5.102
  
    libswresample   0. 18.100 /  0. 18.100
  
    libpostproc    52.  3.100 / 52.  3.100
  
  File formats:
  
   D. = Demuxing supported
  
   .E = Muxing supported

  But in server when I open my php file I am getting this error Error in loading ffmpeg

  Also I have checked phpinfo(), It shows ffmpeg installed in my local but not in server.

  What else I need to do to configure ffmpeg in Cent Os 6.5 php 5.5.

• Converting FLAC to AAC outputs no sound using ffmpeg

  29 décembre 2023, par Aleksandar

  I am trying to convert a FLAC audio input file to AAC using ffmpeg, but the output .aac seems to have no sound when opening in VLC. The input container is a .mka containing only the one single audio stream.

  


  I am using this command :

  


  ffmpeg -i en.mka -c:a aac -b:a 512k -map 0:a:0 en4.aac

  


  I tried with map -0 and both 320k and 512k - nothing seems to produce an output file with sound and VLC seemingly can't even determine the length of the file constantly shifting how long it is ?

  


• avformat/mxfdec : Detect XYZ pixel format for digital cinema files

  4 mars 2015, par Vilius Grigaliūnas

  avformat/mxfdec : Detect XYZ pixel format for digital cinema files
  While the native jpeg2000 decoder can determine pixel format correctly
  
  from the codestream, libopenjpeg wrapper cannot. To make sure that
  
  the output is correct when using libopenjpeg to decode digital
  
  cinema files, we do detection from the metadata included in the MXF
  
  wrapper.
  If the container has "JPEG 2000 Coding Parameters" metadata element
  
  with Rsiz value set to one of digital cinema profiles, we can safely
  
  assume that the given input file is DCI compliant, therefore the
  
  pixel format should be XYZ.
  Reviewed-by : Tomas Härdin <tomas.hardin@codemill.se>
  
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavformat/mxfdec.c