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• mkv extract full DTS HD Master and Dolby True HD in flac or wav

  11 novembre 2016, par esposito

  I have some mkv files with audio in DTS Master 5.1 / 7.1 and Dolby True HD.

  I like to extract the full lossless audio 24/96 (core + residual part) in one flac or wav.

  If I do this :

  ffmpeg.exe -i input.mkv -map 0:2 output.dts

  or this :

   ffmpeg.exe -i input.mkv -map 0:2 output.flac

  it will extact only a lossy part. For dolby true HD there is the some problem I suppose.

  There is a way to extact full "lossless" audio in flac or wav directly ?

  I don’t like extact 2 files (core + residual) but "merge" All in one flac/wav file.

  thank you !

• recompiling audio from a movie source

  4 novembre 2016, par jkushner

  Is it possible to recompile movie files to re-stream the audio so they all have the same volume level ? We’ve got users submitting videos and to me it seems some are higher in volume whereas others are not, and they all have the same volume level on the controls, and i’d like to standardize this so all movie files have the same volume levels.

  I was thinking of ffmpeg although I only have novice knowledge of this technology and haven’t done my research in it yet.

  Anyway if there’s anything available I’d love to know.

  Thanks !

• Python - saving movie with ffmpeg - alternative syntax

  12 octobre 2016, par Honigdachs

  I want to save a real time plot using ffmpeg using a common python syntax below :

  with writer.saving(fig, "anim.mp4", 100):
  
      ...
  
      ...
  
      writer.grab_frame()

  Question : Is there an alternative way like possible for saving file in python ?

  Instead of using the code above, similar to :

  with open('Failed.py', 'w') as file:
  
      file.write('whatever')

  I would like to use for saving the movie something similar to :

  file = open('Failed.py', 'w')
  
  file.write('whatever')
  
  file.close()