So i have video file mp4, and without changing its quality i want to add ass hardsubs. i am doin this with ffmpeg: on windows:
ffmpeg -i input.mp4 -c:v libx264 -preset:v medium -profile:v baseline -level 3.0 -movflags +faststart -vf ass=insubs.ass -bufsize 4000k -qp 27 result.mp4
But it takes long time, or quality is bad. It have to be most compatible, so baseline, and good for web.
How to do it faster? When i change preset to ultrafast quality is very very bad.
I dont want to use mkvtoolnix and handbrake or avisynth. And it has to be on Windows. It has to be something, possible to do with one simple bat file, very fast, good quality,small size, just like original mp4 only with subs hardcoded. Thanks.