How to set bitrate limit in FFMPEG

Question

How can I limit bitrate of a transcoding video in FFMPEG to keep it under a limit value?

score 18 · Accepted Answer · edited Oct 22 '20 at 03:38

18

You can use this code

ffmpeg -i myfile.avi -b 4000k -minrate 4000k -maxrate 4000k -bufsize 1835k out.m2v

edited Oct 22 '20 at 03:38

Giacomo1968

answered Apr 16 '17 at 09:25

4

Thank you! exactly I needed `minrate` and `maxrate` – Mahdi Ataollahi Apr 16 '17 at 09:38
1

-b set video and audio's average bit rate per second – alireza akbaribayat Mar 12 '18 at 15:00
Note: "maxrate integer (encoding,audio,video) - Set max bitrate tolerance (in bits/s). Requires bufsize to be set." - see also https://trac.ffmpeg.org/wiki/Limiting%20the%20output%20bitrate – Avatar Dec 24 '21 at 08:40

Saeed Ludeen · Answer 2 · 2017-04-20T13:37:37.203

7

To set the video bitrate of the output file to 64 kbit/s:

 ffmpeg -i input.avi -b:v 64k -bufsize 64k output.avi

edited Apr 20 '17 at 13:37

answered Apr 16 '17 at 09:24

Saeed Ludeen

2 Answers2