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• Bash : bash script to download trimmed mp3 from youtube url

  25 août 2017, par Bhishan Poudel

  I would like to download the initially x seconds trimmed mp3 from a video url of youtube.
  I found that youtube-dl can download the video from youtube to local machine. But, when I looked at the man pages of youtube-dl, I could not find any trim options.

  So I tried to use the ffmpeg to trim downloaded mp3 file.
  Instead of doing this is two steps, I like to write one bash script which does the same thing.
  My attempt is given below.

  However, I was stuck at one place :
  "HOW TO GET THE VARIABLE NAME OF OUTPUT MP3 FILE FROM YOUTUBE-DL ?"
  The script is given below :

  # trim initial x seconds of mp3 file
  
  # e.g. mytrim https://www.youtube.com/watch?v=dD5RgCf1hrI 30
  
  function mytrim() {
  
      youtube-dl --extract-audio --embed-thumbnail --audio-format mp3 -o "%(title)s.%(ext)s" $1
  
      ffmpeg -ss $2 -i $OUTPUT_MP3 -acodec copy -y temp.mp3
  
      mv temp.mp3 $OUTPUT_MP3
  
      }

  How to get the variable value $OUTPUT_MP3 ?
  echo "%(title)s.%(ext)s" gives the verbatim output, does not give the output filename.

  How could we make the script work ?

  The help will be appreciated.

• ffmpeg best settings for youtube live

  24 mars 2023, par Mariano

  I have this settings for ffmpeg

  


  ffmpeg -f lavfi -i anullsrc -rtsp_transport tcp -i "rtsp://" -c:v libx264 -b:a 384k -ac 2 -preset slow -crf 18 -profile:v high -bf 2 -pix_fmt yuv420p -movflags +faststart -threads 4 -cpu-used 0 -b:v 5M -r 30 -g 15 -coder 1 -f flv "rtmp://a.rtmp.youtube.com/live2/"


  


  but the quality and speed is not very good,
could some one tell me what at the best settings

  


  thanks

  


• Youtube-dl Python3 ERROR : audio conversion failed : No such file or directory

  21 avril 2020, par WhiteAB

  I was building a small executable, using the youtube-dl module and it is giving me the following error, and I have tried several things and nothing has worked for me

  



  import pyperclip

url=pyperclip.paste()

os.system('''youtube-dl  --no-playlist -x --prefer-ffmpeg --audio-format mp3 --audio-quality 0  '''+ url)


  



  when i try to run it does this

  



  [youtube] Ak6ynwcCv1Q: Downloading webpage
[youtube] Downloading just video Ak6ynwcCv1Q because of --no-playlist
[download] Bad Computer - Disarray [Monstercat Release]-Ak6ynwcCv1Q.webm has already been downloaded
[download] 100% of 4.49MiB
[ffmpeg] Destination: Bad Computer - Disarray [Monstercat Release]-Ak6ynwcCv1Q.mp3
ERROR: audio conversion failed: file:Bad Computer - Disarray [Monstercat Release]-Ak6ynwcCv1Q.mp3: No such file or directory


  



  I believe that I need define a path to the mp3 file but I don't know where this path should be defined