#7774 Video file selection required

"Video file selection required" means you clicked Start without selecting any input file.

pyVideoTrans cannot begin any task until at least one audio/video file (or a folder) is chosen.

Steps to fix:

1. Click the Select Video/Audio button at the top-left of the main window.
2. In the file dialog, pick one or more supported files (mp4/mkv/avi/mov/wav/mp3...).
   
   Hold Ctrl to multi-select.
3. If you want to process an entire directory, check the Folder box instead and choose the folder.
4. Confirm the filename now appears in the input field, then click Start.

Additional checks:

• If a file was selected but the field still shows empty, your file path likely contains special symbols or non-English characters.
  
  Move/rename the file to a simple path such as D:/pyVideoTrans/test.mp4 and reselect.
• Do not run from inside the compressed archive.
  
  Your sp.exe is located at C:/Users/ADMIN/Downloads/Compressed/win-pyvideotrans-v4.14, i.e.
  
  still inside a Compressed folder — extract the whole package to a shallow, pure-English path like D:/pyVideoTrans and run sp.exe from there, otherwise file dialogs may fail to return a valid selection.
• Also make sure the Clear Output option is not the only thing checked; it does not select a video.