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• Streaming a WebPage to YouTube using FFMpeg

  30 mars 2020, par Pedro Lobito

  I’m trying to stream a webpage to YouTube using phantomjs and ffmpeg.
  Long question short :

  This works. The video is saved to test.flv :

  phantomjs runner.js|ffmpeg -y -f image2pipe -r 10 -s 1280x720 -i - -deinterlace -vcodec libx264 -pix_fmt yuv420p -preset ultrafast -r 10 -g 20 -vb 400k -maxrate 400k -minrate 400k -bufsize 800k -threads 6 -q:v 0 -t 10 -f flv test.flv

  This doesn’t. Despite no errors, nothing is streamed to YouTube.

  phantomjs runner.js|ffmpeg -f image2pipe -r 10 -s 1280x720 -i - -deinterlace -vcodec libx264 -pix_fmt yuv420p -preset ultrafast -r 10 -g 2 -vb 400k -maxrate 400k -minrate 400k -bufsize 800k -threads 6 -q:v 0 -f flv rtmp://a.rtmp.youtube.com/live2/xxxxxxx

  ---

  Remarks :

  1. I’m aware phantomjs isn’t actively developed anymore, but this doesn’t seem
     relevant since the phantomjs script works as intended ;
  2. phantomjs script : runner.js ;
  3. I’ve tried different ffmpeg settings, like frame-rates, bit-rates and bufsize to no avail.
  4. Both commands are similar, but the 1st outputs to local-file test.flv while 2nd to YouTube ;
  5. I’ve used the YouTube streaming key on OBS Studio and it works normally ;
  6. ffmpeg output while streaming to YouTube :

  frame=   13 fps=0.0 q=42.0 size=      94kB time=00:00:00.50 bitrate=1531.0kbits/                                                                   frame=   18 fps= 16 q=40.0 size=     130kB time=00:00:01.00 bitrate=1063.6kbits/                                                                   frame=   23 fps= 14 q=44.0 size=     149kB time=00:00:01.50 bitrate= 810.8kbits/

  7. ffmpeg version 4.2.1-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2019 the FFmpeg developers running on Ubuntu-1804

  Any idea of what can be wrong ?

• ffmpeg won't livestream to youtube

  4 novembre 2019, par HeyItsDan

  I’m trying to write a simple "script" that allows me to stream a music radio to YouTube or any other platform but whenever I’m trying to test it, it won’t let me livestream at all, if anyone got a solution to this it would be very appreciated !

  StreamURL="xxxxxxxxxxxxxxxxxxxx"
  
  Key="xxxxxxxxxxxxxxxxxxxxxxxx"
  
  BackgroundPath="bg.jpg"
  
  NPPath="np.txt"
  
  
  
  ffmpeg \
  
  -re \
  
  -loop 1 \
  
  -framerate $FPS \
  
  -i $BackgroundPath \
  
  -s 1920x1080 \
  
  -ab 128k \
  
  -maxrate 2048k \
  
  -bufsize 2048k \
  
  -vf "drawbox=0:0:1920:100:black:fill, drawtext='fontfile=Arial\:style=Bold Italic:text=Now Playing':fontcolor=white:fontsize=35:x=20:y=20, drawtext=textfile='$NPPath':fontcolor=white:fontsize=28:x=20:y=58" \
  
  -c:a aac \
  
  -f flv $StreamURL$Key```

• youtube-dl python script postprocessing error : FFMPEG codecs aren't being recognized

  23 septembre 2016, par stackPusher

  My python script is trying to download youtube videos with youtube-dl.py. Works fine unless postprocessing is required. The code :

  import youtube_dl
  
  
  
  options = {
  
      'format':'bestaudio/best',
  
      'extractaudio':True,
  
      'audioformat':'mp3',
  
      'outtmpl':'%(id)s',     #name the file the ID of the video
  
      'noplaylist':True,
  
      'nocheckcertificate':True,
  
      'postprocessors': [{
  
          'key': 'FFmpegExtractAudio',
  
          'preferredcodec': 'mp3',
  
          'preferredquality': '192',
  
      }]
  
  }
  
  
  
  with youtube_dl.YoutubeDL(options) as ydl:
  
      ydl.download(['http://www.youtube.com/watch?v=BaW_jenozKc'])

  Below is the output I receive :

  I get a similar error if I try setting ’preferredcodec’ to ’opus’ or ’best’.
  I’m not sure if this is relevant, but I can run the command line counterpart fine :

  youtube-dl -o 'test2.%(ext)s' --extract-audio --audio-format mp3 --no-check-certificate https://www.youtube.com/watch?v=BaW_jenozKc

  I’ve gotten a few clues from the internet and other questions and from what i understand this is most likely an issue with my ffmpeg, which isn’t a python module right ? Here is my ffmpeg version and configuration :
  

  If the answer to my problem is to add some configuration setting to my ffmpeg please explain how i go about doing that.