[API] buffer size query or indication from audio encoders to upstream how many samples to produce per buffer
Submitted by Stefan Kost @ensonic
Link to original bug (#572973)
Description
It would be useful if (audio) encoders could send a buffer-size-request event upstream. Sources can use that to configure the size of the buffers that they will send in push mode. Basesource can implement that and configure the "blocksize" property.
It would free encoders from using the adapter.