Feature request: the python decoder API should support error concealment

[barbibulle]

The C API for the decode supports some form of error concealment (passing a NULL input to lc3_decode() performs PLC). But when using the python Decoder.decode() API from lc3.py, there is no way to tell the decoder to perform PLC (neither with a single channel, nor with multiple channels).
It would be very useful to be able to do that (both for single and multi channel).

[asoulier]

Added None value #75.
Do you think there is usage for multi-channel?

[barbibulle]

It would be convenient, but not 100% necessary. In one of my apps, I do use the multi-channel decoder to decode stereo inputs in a single call, with interleaved PCM output. But if only single-channel is available, I can split that and do the interleaving manually.

[asoulier]

Thanks for your feedback.
I think the stereo input should come from a single ISO SDU and probably be lost in its entirety.
In the scheme of 2 ISO's connections, two mono decoder instance should be used.
I don't have good idea to have an interface for one particular PLC channel in multi-channel instance. Use preferably two instances and re-interleave as you said.