AHI

Audio Hardware Interface (AHI) module provides uniform API to use platform's audio input / output interface for audio capture and playback.

Types

• Luna::AHI::WaveFormat

  Describes format of one sound wave.

• Luna::AHI::IAdapter

  Represents one audio adapter that can be used to create one device.

• Luna::AHI::DeviceIODesc

  Describes properties of the playback or capture audio data stream of one device.

• Luna::AHI::DeviceDesc

  Describes one audio device.

• Luna::AHI::IDevice

  Represents one audio device that can playback sounds.

Enumerations

• Luna::AHI::BitDepth

  Specifies bit depth of audio samples.

• Luna::AHI::DeviceFlag

  Additional flags specified when creating one device.

Alias types

• using playback_callback_t = u32(void* dst_buffer, const WaveFormat& format, u32 num_frames)

  Called when audio data is required by the audio driver. The user should write audio frames to the provided audio buffer for playback.

• using capture_callback_t = void(const void* src_buffer, const WaveFormat& format, u32 num_frames)

  Called when audio data is captured by the audio driver. The user should process such audio data (like coping them to application memory) if needed.

Functions

• constexpr usize get_frame_size(BitDepth bit_depth, u32 num_channels)

  Gets the size of one audio frame in bytes.

• RV get_adapters(Vector< Ref< IAdapter > > playback_adapters, Vector< Ref< IAdapter > > capture_adapters)

  Gets a list of adapters (driver-provided audio devices) present on the platform.

• R< Ref< IDevice > > new_device(const DeviceDesc &desc)

  Creates one new audio device.