[FFmpeg-user] CLI for low fps high resolution streaming?

2020-12-07 Thread Rocky Ji
Hi all! tl;dr What's the best codec & fps (and other CLI config) to minimize bandwidth usage for streaming text editor videos? Specifically: * high res (as close to original as possible) * low fps (< 8 is fine) * low color count * no audio _ Details: I want to stream video from a U

[FFmpeg-user] How to get 4-bit PNG frames?

2021-01-01 Thread Rocky Ji
Hi, I am using: ffmpeg -i /dev/video2 -r 4 -vf format=pal8 -pix_fmt pal8 -f image2 s-%04d.png to get 4 8-bit PNG screenshots every second from game capture device (if I am understanding it correctly). For my purposes, I need to reduce size further. So I want to get 4-bit PNGs (or 5-bit is also o

Re: [FFmpeg-user] How to get 4-bit PNG frames?

2021-01-01 Thread Rocky Ji
gives least size at native resolution. Happy New Year, thanks. On Friday, January 1, 2021, Rocky Ji wrote: > Hi, > > I am using: > > ffmpeg -i /dev/video2 -r 4 -vf format=pal8 -pix_fmt pal8 -f image2 > s-%04d.png > > to get 4 8-bit PNG screenshots every second from game c

[FFmpeg-user] How to have dynamic FPS to only capture changes in i-frame

2024-02-18 Thread Rocky Ji
Hi, I have to record lectures to preserve quality (i.e. legibility of letters) and reduce file size, both to maximum possible extent. In our lectures, only 2 things happen - either tutor is full screen or the slides are fullscreen. Obviously, there is no time pattern when slides come and when tea