It's not so much a technical problem as a challenge; for a little project of my own I wanted a sort of Star Wars crawl, and I know this can be achieved through Windows Movie Maker on Windows XP. But I've been trying to come up with a better way of doing it, and I think it might just be possible to write an ASS script that does it. Any ideas on how to achieve this through ass? I plan to add it to the video through ffmpeg's libass video filter.
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Thread: Star Wars crawl
the 'Scroll up'-effect allows scrolling text, not sure if this is what you aim for
means that the text/picture will scroll up the screen. The parameters after the words "Scroll up" are separated by semicolons.
The y1 and y2 values define a vertical region on the screen in which the text will scroll. The values are in pixels, and it doesn't matter which value (top or bottom) comes first. If the values are zeroes then the text will scroll up the full height of the screen.
The delay value can be a number from 1 to 100, and it slows down the speed of the scrolling - zero means no delay and the scrolling will be as fast as possible.
No, a simple scroll won't do.
On the other hand, the Youtube video seems to point in the right direction; however, it seems to use Aegisub. I would prefer to accomplish this using ffmpeg's libass filter alone, if possible. Any thoughts on how that can be achieved? Or how the script accompanying the Youtube video might be modified into a working ass subtitle?