High CPU usage when looping over single invalid media file
steps to reproduce:
- create a file with a .mp3 or .mp4 extension
- open in text editor and set value to "this is not an mp4" or similar
- start VLC and add this file to the playlist
- set loop mode to "loop all" or "loop one"
- press play
- FOR LINUX USERS IF DESKTOP ENVIRONMENT FREEZES:
-
CTRL-ALT-F1
into a terminal, login, andkillall vlc
-
result:
- VLC increases CPU usage significantly (didn't test on high core count systems for limit)
- WINDOWS:
- VLC becomes unresponsive
- notification spam after killing VLC (takes a while to clear all notifications)
- LINUX(Ubuntu 20.04LTS / XFCE):
- desktop environment freezes
system info:
- Windows:
- Windows 10 home 20H2(Build:19042.1586)
- VLC 10.0.16 (latest as of filing)
- older version tested(10.0.10) with similar results
- Linux:
5.4.0-89-generic #100-Ubuntu SMP x86_64 x86_64 x86_64 x86_64 GNU/Linux
- Ubuntu 20.04.4 LTS
- VLC 3.0.9.2
- not the latest version, but I don't think this has changed
reason this is very annoying:
- VLC sets itself as the handler for lots of file extensions
- extensions also used by other programs for non-media files
- VLC remembers loop setting
- if you usually loop a playlist double clicking a file can freeze the system(Linux)