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• Heroku ffmpeg buildpack

  20 octobre 2015, par Manuel Quintanilla

  Putting together the video upload section in my rails app and am having some issues with video play on mobile phones. Im using

  paperclip-av-transcoder, s3 and  Heroku

  On my laptop I can visit the page and see the video thumbnails and play the videos only because I have previously installed ffmpeg to my machine.

  Remotely on Heroku I’ve set the appropriate buildpacks for ffmpeg and have run push heroku master to install the buildpacks - Now when I visit the page on my mobile iPhone I don’t get a thumbnail but when I play the video it plays - on the other hand when I visit the page on my Android phone I don’t get a thumbnail and the video dose not play but I can upload mp4s on Android.

  Check out my set up here : Heroku ffmpeg buildpacks for video uploads

  It seems I don’t have the proper buildpack setup or some other heroku setting with ffmpeg.

  Any suggestions ? Thanks in advance !

• Converting jpg's to mp4 using FFmPy

  30 juin 2018, par Matt

  I have a file full of jpg images that I would like to convert into an mp4 video. I have managed to do this on the command line using

  cat path/to/pictures/%d.jpg | ffmpeg -f image2pipe -i - output.mp4

  However when I try and go about doing it via FFmPy :

  ff = ffmpy.FFmpeg(
  
  inputs={'path/to/pictures/%d.jpg': None},
  
  outputs={'output.mp4': None})
  
  
  
  ff.cmd
  
  ff.run()

  I will run into the error :

      FFRuntimeError: `ffmpeg -i path/to/pictures/1.jpg -f output.mp4` exited with status 1
  
  
  
  STDOUT:
  
  
  
  
  
  STDERR:

  I’m really not sure what the issue is here, any change I make results in the same error. Any help would be appreciated, thanks.

• Send command to terminal with appelscript

  16 mars 2017, par Björn

  I have this ffmpeg command that I would like to send to terminal through appelscript. It works when I run it directly in terminal.

  ffmpeg -i score.mov -i palette.png -filter_complex \
  
  "fps=8,scale=600:-1:flags=lanczos[x];[x][1:v]paletteuse" -f image2pipe -vcodec ppm - | convert -delay 15 -loop 0 -layers Optimize - output39.gif

  This doesn’t compile in scripteditor.

  tell application "Terminal"
  
      do script "ffmpeg -i score.mov -i palette.png -filter_complex \
  
  "fps=8,scale=600:-1:flags=lanczos[x];[x][1:v]paletteuse" -f image2pipe -vcodec ppm - | convert -delay 15 -loop 0 -layers Optimize - output39.gif"
  
  end tell

  I get "Expected end of line but found identifier"

  Anyone have an idea what to do ?