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• How to integrate shared object file of libx264 while using ffmpeg for android ?

  5 août 2014, par user3665376

  I am working with integrating ffmpeg for android .

  Since I needed H.264 encoding I need to integrate libx264 with ffmpeg . Given below are the steps I followed .

  1) Build the latest libx264 using android compiler tool-chain to obtain libx264.so.142 .

  2) Build ffmpeg v 2.3 referring to this with —enable -libx264 option while configuring ffmpeg . The method explained in the blog included some editing in configure file of ffmpeg to generate shared object files with extension format [lib name].so rather than the generating shared object file with extension format [lib name].so.[version] (Since android build system supports files with extension .so only).

  The building process was successful but since the generated .so files (after building ffmpeg) has dynamic dependency with libx264.so.142,I need to package libx264.so.142 also with the android .apk file . But since the above format (.so.142) is not supported with android apk building system I cannot package it with the .apk .

  So I think the only option I have is to make some changes in configure file of ffmpeg to change the dynamic dependency of libx264.so.142 to libx264.so . Am I right ??

  What changes do I need to make to ffmpeg configure file to achieve this ?

• How to integrate shared object file of libx264 while using ffmpeg for android ?

  5 août 2014, par user3665376

  I am working with integrating ffmpeg for android .

  Since I needed H.264 encoding I need to integrate libx264 with ffmpeg . Given below are the steps I followed .

  1) Build the latest libx264 using android compiler tool-chain to obtain libx264.so.142 .

  2) Build ffmpeg v 2.3 referring to this with —enable -libx264 option while configuring ffmpeg . The method explained in the blog included some editing in configure file of ffmpeg to generate shared object files with extension format [lib name].so rather than the generating shared object file with extension format [lib name].so.[version] (Since android build system supports files with extension .so only).

  The building process was successful but since the generated .so files (after building ffmpeg) has dynamic dependency with libx264.so.142,I need to package libx264.so.142 also with the android .apk file . But since the above format (.so.142) is not supported with android apk building system I cannot package it with the .apk .

  So I think the only option I have is to make some changes in configure file of ffmpeg to change the dynamic dependency of libx264.so.142 to libx264.so . Am I right ??

  What changes do I need to make to ffmpeg configure file to achieve this ?

• Using ffprobe with Powershell

  5 mars 2014, par sebastian

  I need your help (again). I was using ffprobe with Windows PowerShell and wanted to do something similar as it is explained in this link here :

  http://spreadys.wordpress.com/2012/12/03/ffprobe-and-windows-powershell/

  It works really fantastic but I wanted to integrate a script in another script that starts ffprobe automatically with PowerShell. Said and done, I tried to write a few script-lines like you can see.

  $title = "A_Day_for_Cake_and_Accidents"
  
  $ffprobecommand = 'ffprobe -show_streams -select_streams v -print_format xml -count_frames C:\Users\Administrator\Desktop\dcp_bearbeitet\'+$title+'\'+$title+'.mov > C:\Users\Administrator\Desktop\dcp_bearbeitet\'+$title+'\totalframes.xml'
  
  
  
  $ffprobepath = 'C:\ffmpeg\ff-prompt.bat'
  
  $ffprobepathprop = 'C:\ffmpeg\ff-prompt.prop'
  
  
  
  Add-Content -Value $ffprobecommand -Path $ffprobepath
  
  
  
  $ffprobestart = "C:\ffmpeg\ff-prompt.bat -p C:\ffmpeg\ff-prompt.prop"
  
  
  
  Invoke-Expression $ffprobestart

  If I am running it I get something like this :

  "C :\Users\Administrator>ECHO OFF
   bin\ffmpeg.exe could not be found."

  Of course the script must know where to find the ffmpeg.exe but the problem for me is, that I do not know where to put the path in my script and how to run the script successfully. Does anybody know a way to solve this ?