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• ffmpeg for browser side ? [on hold]

  18 janvier 2016, par Allan

  I want to be able to use ffmpeg browser side for my web app and have done some research on the Internet and have found this. And there are 2 problems with that ffmpeg.js :

  1. It is much slower than the native ffmpeg
  2. The ffmpeg.js file is too big to be downloaded each time by a user

  I was wondering if anyone has any experience to use any version of ffmpeg browser side like the above but got any faster results please( close to native ffmpeg’s speed).

  Any ideas to make the ffmpeg.js like an extension for chrome or cache it on the browser or any other ways around this using node cluster or anything else please ?! Any ideas would be greatly appreciated !

• Stream microphone from client browser to remote server and pass audio in real time to ffmpeg to combine with a second video source

  4 mai 2021, par fakeguybrushthreepwood

  As a beginner at working with these kinds of real-time streaming services, I've spent hours trying to work out how this is possible, but can't seem to work out I'd precisely go about it.

  


  I'm prototyping a personal basic web app that does the following :

  


  


  1. In a web browser, the web application has a button that says 'Stream Microphone' - when pressed it streams the audio from the user's microphone (the user obviously has to consent to give permission to send their microphone audio) through to the server which I was presuming would be running node.js (no specific reason at this point, just thought this is how I'd go about doing it).

     


  


  2. The server receives the audio close enough to real-time somehow (not sure how I'd do this).

     


  


  3. I can then run ffmpeg on the command line and take the real-time audio coming in real-time and add it as the sound to a video file (let's just say I'm going to play testmovie.mp4) that I want to play.

     


  


  


  I've looked at various solutions - such as maybe using WebRTC, RTP/RTSP, Piping audio into ffmpeg, Gstreamer, Kurento, Flashphoner and/or Wowza - but somehow they look overly complicated and usually seem to focus on video along with audio. I just need to work with audio.

  


• Correct settings for streaming audio and video to YouTube

  27 novembre 2020, par Claus

  I'm using this script to stream an .mp4 video file with a sound track in .mp3 format :

  


  ffmpeg \
-re \
-i "$VIDEO_SOURCE" \
-thread_queue_size 512 \
-i "$AUDIO_SOURCE" \
-c:v libx264  -pix_fmt yuv420p -preset $QUAL -r $FPS -g $(($FPS *2)) -b:v $VBR \
-c:a $AUDIO_ENCODER -threads 6 -ar 44100 -b:a 128k -bufsize 512k -pix_fmt yuv420p \
-f flv $YOUTUBE_URL/$YOUTUBE_KEY


  


  the video gets displayed correctly on the channel but I cannot get any audio played.

  


  No error message on the console. What am I missing ?