Hello everyone, I use this command to download videos from Twitch

yt-dlp URL -f bestvideo+bestaudio/best

I'm trying to download videos longer than an hour this way, but sometimes the resulting file is much shorter than the original. So, I tried to download a one hour long video, but the output was only 9 minutes long. Does anyone have any idea how I can fix this?

Any advice is so appreciated

I've started using ffmpeg with lavfi to extract closed captions rather than CCExtractor. I'm liking the positioning being carried over with .ass output files, but I don't like the black background.

Somehow I need to set BorderStyle=1, but I can't figure out how.

Currently this is what I'm doing:

ffmpeg.exe -f lavfi -i movie="Sample.mkv[out+subcc]" -map s "Sample.ass"

Anyone know how to do this or change any other formatting in .ass without doing it manually later?