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• How can I use ffmpeg and youtube-dl to download the first frame of every video in a playlist ?

  18 janvier, par Chi Long Qua

  I'm trying to download only the first frame of every video in a large playlist on YouTube. Does anybody know how I can use ffmpeg and youtube-dl to do this ?

  


• Batch Script to Download Video with youtube-dl and Convert with FFmpeg

  24 octobre 2019, par Matt McManis

  I’m trying to

  1. Using a single batch script to
  2. Download an mp4 video using youtube-dl
  3. Save the video’s original title to a batch variable
  4. Convert the video to webm with FFmpeg

  I want to keep the original title, so it needs to read the title with youtube-dl, save it to a variable, and use that variable for FFmpeg input/output filename.

  ---

  CMD Batch

  1. Download Video

  youtube-dl -f best "https://www.youtube.com/watch?v=TWNhqCHw0qc" -o "C:\Users\Matt\Downloads\%%(title)s.mp4" --merge-output-format mp4

  ---

  2. Download Video using Loop

  This is used to save the title to a variable %%a.

  for /f "delims=" %%a in ('youtube-dl -f best "https://www.youtube.com/watch?v=TWNhqCHw0qc" -o @"C:\Users\Matt\Downloads\%%(title)s.mp4" --merge-output-format mp4') do (echo example)

  ---

  3. Final Script
  Download Video, Save Title, Convert with FFmpeg

  Sorted

  for /f "delims=" %%a in ('
  
      youtube-dl 
  
      -f best "https://www.youtube.com/watch?v=TWNhqCHw0qc" 
  
      -o @"C:\Users\Matt\Downloads\%%(title)s.mp4" 
  
      --merge-output-format mp4
  
      ')
  
  
  
  do (ffmpeg -y 
  
      -i "C:\Users\Matt\Downloads\%%a.mp4" 
  
      -c:v libvpx -b:v 1300K -crf 16 -pix_fmt yuv420p 
  
      -map 0:v:0? -sn 
  
      -c:a libvorbis -q:a 6 -ac 2 -map 0:a:0? 
  
      -f webm
  
      "C:\Users\Matt\Downloads\%%a.webm"
  
      )

  Inline

  for /f "delims=" %%a in ('youtube-dl -f best "https://www.youtube.com/watch?v=TWNhqCHw0qc" -o @"C:\Users\Matt\Downloads\%%(title)s.mp4" --merge-output-format mp4') do (ffmpeg -y -i "C:\Users\Matt\Downloads\%%a.mp4" -c:v libvpx -b:v 1300K -crf 16 -pix_fmt yuv420p -map 0:v:0? -sn -c:a libvorbis -q:a 6 -ac 2 -map 0:a:0? -f webm "C:\Users\Matt\Downloads\%%a.webm")

  ---

  Error

  Before the script can ever reach FFmpeg, youtube-dl fails to download the file. It says the file has already been downloaded, even when there is no file in the directory.

  [download] @C#\Users\Matt\Downloads\Color Balloons.mp4 has already
  been downloaded

• ffmpeg hangs during download on network lags

  30 juin 2016, par VladimirLenin

  ffmpeg hangs infinitely when cutting off wifi while downloading m3u8 (which goes through http actually). Same happens occasionaly when trying to download multiple files from script probably due to network lags. Tried -tiemout option but with no avail.

  ffmpeg -y -i 'http://c.brightcove.com/services/mobile/streaming/index/rendition.m3u8?assetId=5005890079001&videoId=5005830251001' -c copy -f mp4 -bsf:a aac_adtstoasc 'file:/home/serj/.mirror0/OUT_DATA2/www.watoday.com.au/title-page/Sydney v Western Bulldogs: Scoring woes could cost Swans, Dogs a flag/00001-FootyFix - Can the Doggies upset the Swans again.mp4' -timeout 1000000