[FFmpeg-user] Changing the value of the parameters while encoding ?

Sai Balaji mynameisbaju at gmail.com
Thu Mar 7 14:04:17 EET 2019


I am new to FFmpeg and this community. For my institution project, I am
using FFmpeg to create MPEG Dash segments from my laptop camera for live

As a part of my project, I would like to change some parameters (For
example. Segment Size), while the encoding process is already running.

This is the command that I'll be using initially:

ffmpeg -f avfoundation -video_size 800x600 -framerate 30 -i 0  -vcodec
libx264 -acodec aac  -b:v 1M -b:a 192k -f dash  -use_template 0
-use_timeline 0 -single_file 0  -streaming 1  -seg_duration  1 -live 1
5 sai.mpd

But for my use case, I would like to change the segment duration to 2
seconds(Initially 1) after some time without terminating the current

Is that possible in FFmpeg to change the parameters dynamically or is there
any other way to handle this use case with FFmpeg?

Note: I am using Shaka Player to play the segments.

Thanks and regards,


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