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• Title : FFmpeg and yt-dlp not working on Render.com deployment - Node.js YouTube video processing app

  23 mai, par minhquan lavo

  I'm building a video processing application that :

  


  

  1. Downloads YouTube videos using yt-dlp

  


  2. Processes these videos with FFmpeg for :

     

     • Cutting clips from the original video

     


     • Adding captions/subtitles to the clips

     


     


  


  


  I'm struggling with getting both tools to work on Render.com deployment. Here's my setup :

  


  Backend Stack :

  


  

  • Node.js

  


  • Express

  


  • FFmpeg-related packages :

    

    • @ffmpeg-installer/ffmpeg : ^1.1.0

    


    • @ffprobe-installer/ffprobe : ^2.1.2

    


    • ffmpeg-static : ^5.2.0

    


    • fluent-ffmpeg : ^2.1.2

    


    


  


  • yt-dlp (installed via pip in postinstall)

  


  


  What I've tried :

  


  

  1. Added FFmpeg installation in render.yaml :

  


  


  services:
  - type: web
    name: clipthat-backend
    env: node
    buildCommand: |
      apt-get update && apt-get install -y ffmpeg
      npm install
    startCommand: npm start


  


  

  2. Installing yt-dlp through npm postinstall :

  


  


  "scripts": {
    "postinstall": "pip install yt-dlp"
}


  


  The issues :

  


  

  1. FFmpeg commands fail on Render deployment :

     

     • Can't process video editing tasks (cutting clips)

     


     • Can't add captions to videos

     


     


  


  2. yt-dlp fails to download YouTube videos on deployment
Both tools work perfectly in my local development environment, but fail after deployment to Render.

  


  


  Questions :

  


  

  1. Has anyone successfully deployed a Node.js application using both FFmpeg and yt-dlp on Render.com for video processing ?

  


  2. Are there specific configurations needed for Python-based tools (like yt-dlp) on Render with Node.js apps ?

  


  3. Do I need to modify the build process to properly install Python and pip before the yt-dlp installation ?

  


  4. Is Render.com suitable for this kind of video processing application, or should I consider alternatives like DigitalOcean, AWS, etc.?

  


  


  Any help or guidance would be greatly appreciated ! Let me know if you need any additional information.

  


• 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 ?

  


• Streaming - How do you re-encode (fps, bit rate, codec) a live stream (e:g twitch/youtube) to another live stream ? [on hold]

  10 février 2017, par shayan

  For example I could receive a twitch 720p/60fps stream and encode it down to 360p/60fps for live viewing(hls preferably). I have used ffmpeg and youtube-dl for simple tasks but i don’t know how I can achieve this.