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FFMPEG bitrate not editable for all codecs
Closed, ResolvedPublic

Description

System Information
Ubuntu 17.10
Nvidia GeForce GTX 580

Blender Version
Broken: 2.79 5bd8ac9cbfa
Worked: 2.78 3c043732d3f

Short description of error
After the remake of the Encoding settings in Render tab the Rate: settings is greyed out and non editable.

If a blend is saved in 2.78, with custom bitrate set, that file is opened as normal editable in 2.79, but any additional scenes created there have greyed out rate settings.

(Tested with 2.79 and 2.79a, default settings and startup scene)

Event Timeline

Brecht Van Lommel (brecht) triaged this task as Confirmed, Medium priority.Mar 19 2018, 8:02 PM
Brecht Van Lommel (brecht) renamed this task from Rate: settings non editable to FFMPEG bitrate not editable for all codecs.

As a quick workaround, you can select a codec that has a Constant Rate Factor (CRF) labeled 'Output quality' (e.g. H.264) set it to 'None; use constant bit-rate' and switch back.