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• Diagonal Split using ffmpeg

  8 juillet 2017, par Jeffin

  I am trying to acheive the following effect using ffmpeg

  

  I have tried multiple options , but failed so far,

  I have referred the following questions , not happening for me

  • FFmpeg : Add alpha channel to a video using a PNG mask
  • FFMPEG Crop with side by side merge
  • https://superuser.com/questions/916431/ffmpeg-filter-to-boxblur-and-greyscale-a-video-using-alpha-mask?rq=1

  I have three videos but i have somewhat acheived the diagonal split for two videos using the following code , but still couldnt get the output for three videos or four

  ffmpeg -i input0 -i input1 -filter_complex \
  
  "[1:v][0:v]blend=all_expr=if(gt(X\,Y*(W/H))\,A\,B)" output

• ffmpeg get the audio stream from mp4 and send it to speech recognition

  12 juillet 2013, par user1896859

  I have few .mp4 video files in which at the start of each video file there is a word, I want to load these files get the audio check what is the spoken word and rename the file accordingly.

  Currently what i am doing is, converting all the mp4 files to wav and then sending the to speech recognition and then doing the renaming stuff.

  Is there a way to cut short the "converting to wav" part out and directly send the mp4 audio stream to speech recognition ??

  Thanks,

• Methods : Adding Smart Quotes to stripHTML's punctuation removal

  14 janvier 2014, par jamierytlewski

  Methods : Adding Smart Quotes to stripHTML's punctuation removal
  Addresses an issue with the word count where smart quotes were not
  
  removed, but the word count counted the words as the punctuation was not
  
  removed.
  Closes gh-811