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• ffmpeg batch retains old filetype in name

  8 février 2015, par InsertDisplayNameHere

  I’m using the following ffmpeg script to convert all .mp4 files in the folder to .webm.

  for %%A IN (*.mp4) DO ffmpeg -i "%%A" -c:v libvpx -crf 4 -b:v 3M -c:a libvorbis "%%A.webm"

  I am trying to make it go from "xxx.mp4" to "xxx.webm"

  However when I run the script the file name goes from "xxx.mp4" to "xxx.mp4.webm"

  Any suggestions are highly appreciated.

• FFMPEG errors with non-English characters

  1er avril 2021, par Mingli Yang

  When I tried to use the command-line to catch a chrome window with non-English characters such as ¥, or any other 中文页面, an I/O error will occur with the message "Can't find window "¥中文页面。 - Google Chrome", aborting." When the non-English characters are replaced by English ones, the errors will disappear. Environment : Windows 10, ffmpeg version 2021-03-24

  


  This works fine :
ffmpeg -f gdigrab -i title="$ English Page - Google Chrome" -pix_fmt yuv420p grab.mp4

  


  This has errors :
ffmpeg -f gdigrab -i title="¥中文页面。 - Google Chrome" -pix_fmt yuv420p grab.mp4

  


  "Can't find window "¥中文页面。 - Google Chrome", aborting."

  


  Any ideas to solve this ?

  


• Create multiple videos from URL image arrays. Excel, CSV, SQL > FFmpeg or NumPy ?

  11 avril 2021, par kymadic

  I have a large Excel spreadsheet (example below) and I'm looking for an efficient way to generate a video for each row using the first column as the filename videoID.mp4 and with a framerate of 1

  


  Is it possible to use this as an input into FFmpeg somehow ? Perhaps via an SQL database ? I have zero experience with NumPy but it came up during my research. Any suggestions would be much appreciated.

  


  





  


  


  


  


  



  


  


  


  


  


  


  


  


  Video ID	URL Image Array
  1	https://learning-services-media.brightcove.com/doc-assets/player-development/player-customization/modal-dialog/display-thumbnails/thumb1.png ;https://learning-services-media.brightcove.com/doc-assets/player-development/player-customization/modal-dialog/display-thumbnails/thumb2.png ;https://learning-services-media.brightcove.com/doc-assets/player-development/player-customization/modal-dialog/display-thumbnails/thumb3.png
  2	https://learning-services-media.brightcove.com/doc-assets/player-development/player-customization/modal-dialog/display-thumbnails/thumb1.png ;https://learning-services-media.brightcove.com/doc-assets/player-development/player-customization/modal-dialog/display-thumbnails/thumb2.png ;https://learning-services-media.brightcove.com/doc-assets/player-development/player-customization/modal-dialog/display-thumbnails/thumb3.png