d2phap
gif playback is slower than it should be
System information
- Windows OS version: Windows 11 23H2
- ImageGlass version: 9.1.8.723
- ImageGlass release: Classic, portable
To Reproduce
Steps to reproduce the behavior:
- Open any gif file that has a fast playback speed (around <100ms per frame)
Actual behavior
- Playback happens at what seems like a constant frame timing, but is slower than it should be
Expected behavior
The gif should play at the speeds specified in the file
Screenshots / Video / Sample image file
https://github.com/user-attachments/assets/474eaf69-36f6-4b76-b878-ab259a4fd596
This video displays ImageGlass side by side with Aseprite both playing the same gif file (with 20ms/frame timing). I start the playback in aseprite slightly too early, but regardless it takes very few loops for the playback in aseprite to overtake the one in ImageGlass entirely.
Here is the file in question
Additional context
This effect is very hard to notice with gif files that have longer frames. Playback also seems to be even slower than usual when the file has a higher resolution.
Edit: I've recently found that this issue also applies to .webp animated pictures. Haven't checked but this may potentially also apply to other animated image formats.
Agreed. ImageGlass 8 and below worked perfectly fine. Almost all GIFs in IG 9.0+ play at around 60-80% speed.
