Add support to multiple channel output options

[avelad]

I want to be able to generate an output with audio 2.0 and 5.1.

Now, only one channel configuration is supported.

[joeyparrish]

To clarify, do you want to have one 2-channel input and one 6-channel input and have those turn into 2-channel and 6-channel output, respectively? Or do you want one 6-channel input turned into both a 6-channel input and a 2-channel output (downmixed)?

[avelad]

I want the second option.

Eg:
input

• AC3 6 channels

output

• AC3 6 channels
• AC3 2 channels (downmixed)
• AAC 6 channels
• AAC 2 channels (downmixed)

Note: It would also be nice to be able to select the bitrate of the audio. Eg: AAC 96kbps and AAC 128kbps

[joeyparrish]

You can already change the output bitrates and redefine the resolutions with today's master branch, and in the upcoming v0.3.0 release. It's done through an additional config file. See config_files/bitrate_config.yaml and the -b option on the command-line.

The downmixing of input to various output channels isn't supported yet, but I'll add this as an enhancement for v1.0.

[avelad]

Yes it is true that this configuration exists, but I think that in my previous comment I was not clear.

I wish I could configure this:

• AAC 2 channels at 96kpbs
• AAC 2 channels at 128kbps

In the configuration example, it is only possible to establish an stereo configuration, or at least I understood that. I need 2 configurations for stereo

[joeyparrish]

Ah, I see. Let's make that a separate feature request.