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• ERROR : libvpx decoder version must be >=0.9.1 [install ffmpeg in CentOS 6.3]

  4 septembre 2017, par Hu Le

  I want to install ffmpeg in CentOS 6.3
  It needs to install libvpx.

  I install libvpx before. Its version is 0.9.7.

  When I install ffmpeg, it indicates :

  [root@hostname ffmpeg]# PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure —prefix="$HOME/ffmpeg_build" —extra-cflags="-I$HOME/ffmpeg_build/include" —extra-ldflags="-L$HOME/ffmpeg_build/lib -ldl" —bindir="$HOME/bin" —pkg-config-flags="—static" —enable-gpl —enable-nonfree —enable-libfdk_aac —enable-libfreetype —enable-libmp3lame —enable-libopus —enable-libvorbis —enable-libvpx —enable-libx264 —enable-libx265

  ERROR: libvpx decoder version must be >=0.9.1

  If you think to configure made a mistake, make sure you are using the latest
  version from Git. If the latest version fails, report the problem to the
  ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
  Include the log file "ffbuild/config.log" produced by configuring as this will help
  solve the problem.

  Now my rpm and yum is :

  [root@hostname ]# yum list libvpx

  Loaded plugins : fastestmirror

  Loading mirror speeds from cached hostfile

  • nux-dextop : li.nux.ro

  • rpmforge : mirrors.neusoft.edu.cn

  Installed Packages

  libvpx.x86_64 1.3.0-5.el6_5 installed

  Available Packages

  libvpx.i686 0.9.7.1-3.el6.nux nux-dextop

  I want to remove libvpx.i686 in this way :

  [root@hostname ffmpeg]# yum remove libvpx.i686

  Loaded plugins : fastestmirror

  Setting up Remove Process

  No Match for argument : libvpx.i686

  Loading mirror speeds from cached hostfile

  • nux-dextop : li.nux.ro

  • rpmforge : mirrors.neusoft.edu.cn

  Package(s) libvpx.i686 available, but not installed.

  No Packages marked for removal

  How to remove libvpx.i686 completely ?

• declaration of referenced constant is not found in built-in library and project files

  2 août 2016, par Auguste Larrivé

  Hello on the server I’m working on a directory named home.
  In an other directory there’s the library ffmpeg.

  Now I’m trying to use ffmpeg in my "home" directory with php.

  This is my code line :

  <?php ffmpeg -f image2 -i image%d.jpg  video.mpg ?>

  I know "<" is missing. It is on my PHPstorm codeline.

  Unfortunately I can read an error which said declaration of referenced constant is not found in built-in library and project files about ffmpeg.
  Does anyone now anything about this ?

• How to display progress on user side in FFMPEG transcoding in rails ?

  21 décembre 2015, par Jiggs

  I am using Streamio-ffmpeg to process files. The gem shows the progress of the transcoding in the console. I want to display this progress to the user. Is there anyway of doing this ?

  This is my lib : (Where the transcoding is done)

  file = ::FFMPEG::Movie.new(tmpfile)
  
  
  
  encoded_file = File.join(directory, new_name)
  
  
  
  file.transcode(encoded_file) { |progress| progressing = (progress * 100).round(2); puts "#{progressing} %"; }

  The |progress| progressing = (progress * 100).round(2) ; puts "#progressing %" ; is responsible for printing the progress to the console. Can I display this in my views instead ?

  Output on console is :-

  I, [2015-12-21T12:48:55.322814 #19642]  INFO -- : Running transcoding...
  
  ffmpeg -y -i /home/tps/sites/demo_projects/blog/public/uploads/tmp/1450682335-19642-6992/tmpfile  /home/tps/sites/demo_projects/blog/public/uploads/tmp/1450682335-19642-6992/mp4_SampleVideo_1080x720_5mb.mp4
  
  
  
  0.0 %
  
  
  
  6.63 %
  
  
  
  9.57 %
  
  
  
  11.4 %
  
  
  
  13.46 %
  
  
  
  15.86 %
  
  
  
  18.3 %
  
  
  
  21.64 %
  
  
  
  25.03 %
  
  
  
  28.61 %
  
  
  
  32.09 %
  
  
  
  36.62 %
  
  
  
  43.29 %
  
  
  
  48.6 %
  
  
  
  53.23 %
  
  
  
  57.69 %
  
  
  
  61.68 %
  
  
  
  66.49 %
  
  
  
  70.1 %
  
  
  
  72.91 %
  
  
  
  75.75 %
  
  
  
  79.07 %
  
  
  
  83.73 %
  
  
  
  88.81 %
  
  
  
  93.07 %
  
  
  
  96.72 %
  
  
  
  99.05 %
  
  
  
  99.97 %
  
  
  
  100.0 %
  
  
  
  I, [2015-12-21T12:49:10.058592 #19642]  INFO -- : Transcoding of /home/tps/sites/demo_projects/blog/public/uploads/tmp/1450682335-19642-6992/tmpfile to /home/tps/sites/demo_projects/blog/public/uploads/tmp/1450682335-19642-6992/mp4_SampleVideo_1080x720_5mb.mp4 succeeded

  I tried out "using include ActionController::Live" but i don’t get any proper result. I don’t know to how to use "include ActionController::Live" in this situation.