For bit rates, 1Mb/s = 1000 kb/s = 1000000 b/s the multipliers aren't 1024 (there is another prefix, KiB/s, which is 1024 B/s, but ffmpeg doesn't appear to use that).The desired size in MB needs to be multiplied by 8 to get bit rate.It's enough if it is reasonably close to what I want (maybe up to 5 or 10% lower or so) but it should be guaranteed that it will not exceed my target answer is close but missing several pieces: I could also clarify that I'm NOT looking for exactly the size I'm specifying. Uploading to an external link is not an option due to technical limitations, one of them being that the receiver does not have http access. Good advice in general, but it does not suit my usecase. If it's obvious that size will not be met, cancel the encode and adapt quality level accordingly. If you must encode it, set a quality level, leave the bitrate dynamic. Worrying too much about size and going for a fixed filesize regardless of video length / resolution / framerate / content will not give satisfactory results most of the time. Is there any good way to use ffmpeg (or another tool) to reduce the size of a video to a target size?
And also when doing this I had to finish of with manual trial and error. Problem is that I need to manually calculate the bitrate.
I looked at this question: How can I reduce a video's size with ffmpeg? where I got good advice on how to reduce it. I want to reduce the size of a video to be able to send it via email and such.
0 kommentar(er)
