Write stream to Audio output

@tableofcontents

Objectifs:

Understand write audio stream

The writing work nearly like the read turoral. Then we will just see what has change.

File configuration:

@snippet write.cpp audio_river_sample_write_config_file

Create your write interface:

Generic code: @snippet write.cpp audio_river_sample_create_write_interface

Here we create an interface with:

The frequency of 48000 Hz.
The default Low level definition channel
A data interface of 16 bits samples coded in [-32768..32767]
Select input interaface name "speaker"

set data callback:

The best way to get data is to instanciate a simple callback. The callback is called when sample are needed and you have the nbChunk/frequency to generate the data, otherwise you can generate error in data stream.

@snippet write.cpp audio_river_sample_set_callback

Callback inplementation:

Simply declare your function and do what you want inside.

@snippet write.cpp audio_river_sample_callback_implement

Full Sample:

@snippet write.cpp audio_river_sample_write_all

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