I am using the below command to create CMAF Dash segments of my mp4 file (as given in https://github.com/gpac/gpac/wiki/MP4Box) 

`MP4Box -dash 1000 bbb_300.mp4 -out live.mpd --dual --cmaf`

However I got the error  **"Option --dual unknown. Please check usage"**

I received a similar error when I removed --dual, but this time **"Option --cmaf unknown. Please check usage"**


(Running gpac and MP4Box on Ubuntu 20.01)



Using MP4Box to prepare CMAF MPEG-DASH
This is a GitHub Issue
repo:gpac
owner:gpac
Title : Using MP4Box to prepare CMAF MPEG-DASH
Issue date:

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I am using the below command to create CMAF Dash segments of my mp4 file (as given in https://github.com/gpac/gpac/wiki/MP4Box) 

`MP4Box -dash 1000 bbb_300.mp4 -out live.mpd --dual --cmaf`

However I got the error  **"Option --dual unknown. Please check usage"**

I received a similar error when I removed --dual, but this time **"Option --cmaf unknown. Please check usage"**


(Running gpac and MP4Box on Ubuntu 20.01)



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