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• FFMPEG : Is it possible to merge video clips but cutout overlapping frames ?

  18 avril 2019, par Muhammad Umer

  I’ve got clips of video game. These clips are highlights and recorded automatically when some event happens. I can find solutions to merge them using cli and ffmpeg. Clips are 3 minutes recordings. So if 2 events happen closely, < 3 min apart, then there is overlap. Is it possible to ignore/subtract/delete subsequent clips upto point where last frame that’s overlapping.

  EX: 
  
  Clips= A(1-4), B(7-11), C(9-13).
  
  
  
  B and C are overlapping. 
  
  
  
  Can ffmpeg detect overlapping frames in C and only merge (12-13).
  
  
  
  Clips are alphabetically sortable. 

• building MobileVLC -> armc7 + ffmpeg issue

  28 septembre 2012, par Shamil

  I'm trying to build MobileVLC on OS X Lion, against iOS SDK 5.0. So far, no dice.

  Followed the given instructions, however, build stops and fails here :
  [info] Building contrib for iOS in '/Users/shamil/Documents/MobileVLC/ImportedSources/vlc/contrib-builddir-ios-i686-apple-darwin10

  Current log :
  ./buildMobileVLC.sh -s
  [info] Preparing build dirs
  [info] Building
  [info] Building vlc
  [info] Building libvlc for the iOS
  [info] Using i386 with SDK version 4.2
  [info] Building contrib for iOS in '/Users/shamil/Documents/MobileVLC/ImportedSources/vlc/contrib-builddir-ios-i686-apple-darwin10'

  The error is given as follows :

  make[1]: *** [.ffmpeg] Error 1
  
  make: *** [using-src] Error 2

  /ImportedSources/vlc/contrib-builddir-ios-arm-apple-darwin10/build-src/ffmpeg/config.log tells me :

  ld: warning: directory not found for option 'L/Users/shamil/Documents/MobileVLC/ImportedSources/vlc/contrib-ios-arm-apple-darwin10/lib'
  
  ld: warning: directory not found for option '-L/Users/shamil/Documents/MobileVLC/ImportedSources/vlc/contrib-ios-arm-apple-darwin10/lib'
  
  **ld: in /usr/lib/system/libcache.dylib, missing required architecture armv7 in file for architecture armv7**
  
  collect2: ld returned 1 exit status
  
  C compiler test failed.

  I've bolded the one which I think is causing it to fail. Now - how do I fix THIS error ?

• Using ffmpeg to change video framerate without video quality loss and keep audio ?

  31 mai 2020, par Johnny

  I recorded some game videos with my Samsung Galaxy S7 device. When I now add these videos to blender 3d in video editing, I get different video and audio frames.

  &#xA;&#xA;

  I think, that this is an fps problem, because on every recorded video I get different fps :&#xA;59.01, 59.80 etc.

  &#xA;&#xA;

  Now I want to change frame rate on all videos to 60 fps without video quality loss and keeping audio.

  &#xA;&#xA;

  So I would not have any problems in video editing.

  &#xA;&#xA;

  Does somebody have any tips ?

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