54 lines
1.6 KiB
Markdown
54 lines
1.6 KiB
Markdown
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Write stream to Audio output {#audio_river_write}
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============================
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@tableofcontents
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Objectifs: {#audio_river_write_objectif}
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==========
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- Understand write audio stream
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The writing work nearly like the read turoral. Then we will just see what has change.
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File configuration: {#audio_river_write_config}
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===================
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@snippet write.cpp audio_river_sample_write_config_file
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Create your write interface: {#audio_river_write_interface}
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============================
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Generic code:
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@snippet write.cpp audio_river_sample_create_write_interface
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Here we create an interface with:
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- The frequency of 48000 Hz.
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- The default Low level definition channel
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- A data interface of 16 bits samples coded in [-32768..32767]
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- Select input interaface name "speaker"
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set data callback: {#audio_river_write_get_data}
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==================
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The best way to get data is to instanciate a simple callback.
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The callback is called when sample are needed and you have the nbChunk/frequency
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to generate the data, otherwise you can generate error in data stream.
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@snippet write.cpp audio_river_sample_set_callback
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Callback inplementation: {#audio_river_write_callback}
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========================
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Simply declare your function and do what you want inside.
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@snippet write.cpp audio_river_sample_callback_implement
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Full Sample: {#audio_river_write_full_sample}
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============
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@snippet write.cpp audio_river_sample_write_all
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