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• Can you stream multiple video clips to youtube or twitch with a separate audio track with a different length than the video clips with FFMPEG ?

  8 juin 2020, par Fight Fire With Fire

  What I'd like to do is stream a set of video clips to youtube or twitch using FFMPEG. Right now i loop thru the videos file names in a list called DIRECTORY. video[0] is the file name and send to stream_url with the audio for the video attached.

  



  What i would love to figure out, is there a way I could mux in a single audio track streaming to youtube/twitch but switch the video clips out live. Here is the code I am working with right now :

  



  
     for video in directory:
            command = [
            "ffmpeg" , "-re" , "-i" , video[0] ,
            "-vcodec" , "libx264", "-pix_fmt", "yuv420p",
            "-preset" , "medium" , "-r" , "30" , "-g" , "48" , "-b:v" , "2500k" ,
            "-acodec" , "libmp3lame" , "-ar" , "44100", "-threads" , "6" ,
            "-q:a" , "3" , "-b:a" , "712000" ,"-bufsize", "512k" , "-f" ,
            "flv" , STREAM_URL,
        ]
             subprocess.run(command)



  


• streaming audio output from pulse over network with ffmpeg and ffserver

  12 juillet 2012, par Aniket Awati

  I have different virtual machines running on the server. I have pulse as an audio backend.
  Now I want to stream the audio output of each virtual machine over the network. VNC doesnt allow that.
  I have come across ffmpeg and ffserver.

  I have managed to understand that I can grab the audio source and apply a coded and stream it using ffserver.

  My ffmpeg command is :

  ffmpeg -f pulse -i #sourceNo http://localhost:8090/feed1.ffm

  In ffserver.conf i have this configuration

  <stream>
  
  Feed feed1.ffm
  
  Format mp2
  
  AudioCodec libmp3lame
  
  AudioBitRate 128
  
  AudioChannels 2
  
  AudioSampleRate 44100
  
  NoVideo
  
  </stream>

  So now when I try to play using

  http://localhost:8090/test.mp3

  i can't hear anything.
  But if save the output using ffmpeg, i can play the output file.

  What should be the error here, or else is there is better way to stream audio output keeping latency low.

• Installing FFMPEG using LinuxBrew in Cloudlinux VPS ?

  27 juillet 2016, par Brahma Kumar Krishna

  I use Homebrew in my Mac to manage my essential PHP packages (for local development) and love the simplicity it provides in doing so.

  Now, I want to deploy my local PHP project which deals with some video processing using the FFMPEG package into my Cloudlinux based VPS. So, to install FFMPEG, I first installed LinuxBrew following this tutorial.

  Finally, when I hit brew install ffmpeg or brew install ffmpeg —with-ffplay —with-freetype —with-openjpeg —with-x265 —with-rubberband then it simply halts as in this image.

  I also checked LinuxBrew’s official documentation and their troubleshooting checklist but could not get any solution to my problem.

  So, I would be very much thankful if anyone could kindly help me to solve the issue or at least point me to the right direction.

  Thanks in advance.