SSA Subtitles that change scale/size don't scale smoothly.
Pre-bugreport info:
Version: 2.2.1 Terry Pratchett (Weatherwax) (Intel 64bit)
Preferences: On a clean install (also tested on multiple computers)
Nightly build: Tested, issue still prevails in 3.0.0-git Vetinari (Intel 64bit)
New features, Closed bugs, and Forums: Searched, nothing found along these lines.
Bugreport:
Info
Subtitles that change size (scale from small to large, or vice versa) are choppy. Subtitle format used is .ass, and the subtitle tags used to change the font size are “{\fs10\t(\fs40)}text” or “{\fscx50\fscy50\t(\fscx200\fscy200)}”.
Repro Steps
- Play a file with a subtitle in it that changes scale (example here: https://dl.dropboxusercontent.com/u/2659201/Movies/bugreports/VLC/subtitle_scale/example.mkv )
Expected occurrence
Screen recording of the intended result in Aegisub: https://dl.dropboxusercontent.com/u/2659201/Movies/bugreports/VLC/subtitle_scale/Aegisub.m4v
Actual occurrence
Screen recording of it in action in VLC: https://dl.dropboxusercontent.com/u/2659201/Movies/bugreports/VLC/subtitle_scale/VLC.mp4
Impact on user
Jittery subtitles instead of smooth scaling.
Repro success-rate
100%
Computer used/tested
- MacBook Pro (Early 2015): 2,7 GHz Intel Core i5, 8 GB 1867 MHz DDR3 (OS X 10.10.4)
- MacBook (Early 2008): 2.4 GHz Intel Core 2 Duo, 2 GB 667 MHz DDR2 (OS X 10.7.5)
- Acer Extensa 5635G: 2.1 GHz Intel Core 2 Duo, 4 GB RAM (Windows 7 SP1)
VLC version
2.2.1 and 3.0.0