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• Video (generated with FFMPEG) scrambled after upload to YouTube

  12 mai 2023, par user2338826

  I am generating short videos from screenshots (e.g. 900 screenshots for a 30 seconds clip) with ffmpeg.

  


  It works great and I can play the videos in different video players on Windows without a problem.
When I upload the video to my YouTube channel it still works fine in the small preview under studio.youtube.com. But as soon as I preview the video on YouTube the whole video is "scrambled" (see attached image).

  


  Other YouTube videos uploaded by other users play fine in my Chrome.

  


  I am using Chrome and if I deactivate Hardware Acceleration in Chrome settings the video plays fine on YouTube. But that obviously is not a viable solution. Users should be able to watch the videos on YouTube without changing settings.

  


  The video also plays fine in the Android YouTube app and in Firefox on Windows.

  


  I have tried a lot of settings for ffmpeg - no success.

  


  This is one of the commands I have tried. The parameters are used according to YouTube's best practice requirements :

  


  ffmpeg -r 30 -s 1080x1920 -i storage/screenshot-%03d.jpg -pix_fmt yuv420p -c:v libx264 -profile:v high -preset slow -crf 18 -g 30 -bf 2 storage/testvideo.mp4


  


  Has anybody successfully generated YouTube videos that also run in Chrome ?
Any idea appreciated.

  


  

  


• FFMPEG Audio Issues Youtube Live

  2 mars 2018, par Geige V

  This issue may have more to do with youtube than ffmpeg, but hopefully someone can help anyway.

  I am having the exact issue described in this post https://productforums.google.com/forum/# !topic/youtube/nHTb7ilKvrw. I would have added to it, but it is locked for some reason.

  I create a stream from a local webm file on my computer using ffmpeg. This file sounds perfectly fine, and still sounds fine when it is sent to platforms other than youtube live (twitch/facebook). On youtube live, however, the audio has static and crackles during the live feed, but the archive of the video on youtube (after processing) sounds perfectly fine. The ffmpeg command is

  ffmpeg -re -i test.webm -acodec aac -vcodec libx264 -ar 44100 -f flv rtmp://a.rtmp.youtube.com/live2/${your_key}

  Webm files from this fiddle (https://jsfiddle.net/2rgv7pgj/) will have the issue.

  If someone could offer advice it would be greatly appreciated.

• Download a youtube video without storing it on the server

  6 mai 2019, par Baraque Obahamas

  I have a personal php script that allows me to download the videos of my choice. Currently, this runs youtube-dl and if necessary convert the video, ffmpeg then.

  I’m looking for a way to allow my script to download/convert the video without even storing it on the server. Make sure that youtube-dl/ffmpeg acts as a gateway but without downloading the file.

  Do you have any idea how to do this ? The idea would be to run ffmpeg on the youtube link and not on the video after it has been downloaded, and allow the user to download it at the same time as the conversion is in progress.

  We can see that this site for example www.onlinevideoconverter.com uses this method, because if we ask for a video of 2 hours or more, it allows us to download it immediately.