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Old 06-11-2019, 10:10 AM   #100
bommaren
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Join Date: Nov 2008
Posts: 19
Default Opus coding, channel mapping family 2 and 3

Is it possible to make opus encode to family 2, I assume family 255 is used now?

Opus coding, channel mapping family 2 and 3 is now a ietf standard for ambisonic channel mapping.


Bosse
Quote:
Originally Posted by mespotine View Post
I updated the render-code-docs. They include now, how to way to go to generate all render-codes; new additions WavPack, OGG, GIF, LCF AudioCD.. M4A is still missing, as this is Mac-only and I don't have a Mac to document that:

Render-CFG-Codes



I also made a more complete ini-file of render-codes, that can be put together with the information included.
Video render codes
The rendercfg-codes as an ini-file, for many formats like DDP, AIF, MP3, FLAC, Video, OPUS and OGG.
The sections are the file-formats (like [OGG] or [FLAC]).
You can find in all sections a key called Renderstring, in which the renderstring-template is stored.
All changeable parts are replaced by [FormatAlterID].
e.g. for OPUS:
Code:
Renderstring=U2dnTwAA[KBPS][MODE][Complexity]AAAA==
Replace the [KBPS] [MODE] [Complexity] with the values of the corresponding keys in the section OPUS.
e.g.:
KBPS_xxx - where xxx is the bitrate-number
MODE_xxx - where xxx is the mode
Complexity_xxx - where xxx is the complexity-number.

So a renderstring with OPUS, Mode:VBR, Bitrate: 24kbps, Complexity:5 would result in this string:
Code:
U2dnTwAAwEEABQAAAA==
MODE_VBR=A
KBPS_24=wEE
Complexity_5=BQ
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