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• lavc : add video/audio/encoding flags to global_quality option

  30 septembre 2011, par Anton Khirnov

  lavc : add video/audio/encoding flags to global_quality option

• ffmpeg unsupported video codec

  11 mars 2012, par user413734

  I tried to convert a .flv into an mpeg with this code :

  ffmpeg -i my.flv -target ntsc-dvd -aspect 4:3 my.mpg

  And I get a lot of these here :

  [flv @ 0x5597b8]Unsupported video codec (7)

  and then :

  Stream mapping:
  
      Stream #0.0 -> #0.0
  
      Stream #0.1 -> #0.1
  
  Unsupported codec (id=0) for input stream #0.0

  But when I ask ffmpeg for formats flv is supported.

  What is wrong ?

  Thanks !

• Combining two video from ffmpeg

  4 décembre 2014, par Astha

  I want to combine two mp4 videos to form a single mp4 video using ffmpeg.

  what i tried so far is

  ffmpeg -i input1.mp4 -i input2.mp4 output.mp4

  But, every time i get the video with video codec of first input and not the other. How can i combine them ? Any idea on this will be highly appreciated.