#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
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| #define | MIC_SAMPLE_RATE (16000) |
| | Sample rate of the captured audio, in Hz.
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| |
| #define | MIC_DEFAULT_VOLUME (-1) |
| | Volume value meaning the driver default; not used by the drivers.
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| |
|
| typedef const struct MicDevice | MicDevice |
| | Microphone device, defined by the driver implementation.
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| |
| typedef void(* | MicDataHandlerCB) (int16_t *samples, size_t sample_count, void *context) |
| | Handler for a full buffer of captured audio.
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| |
| typedef void(* | MicDataReadyCB) (void *context) |
| | Notification that a frame is ready for mic_poll().
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| |
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| void | mic_init (MicDevice *this) |
| | Initialize the microphone driver.
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| |
| void | mic_set_volume (MicDevice *this, uint16_t volume) |
| | Set the capture gain.
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| |
| bool | mic_start (MicDevice *this, MicDataHandlerCB data_handler, void *context, int16_t *audio_buffer, size_t audio_buffer_len) |
| | Start capturing.
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| |
| bool | mic_start_polling (MicDevice *this, MicDataHandlerCB data_handler, void *context, int16_t *audio_buffer, size_t audio_buffer_len, MicDataReadyCB ready) |
| | Start capturing with realtime dispatch.
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| |
| void | mic_poll (MicDevice *this) |
| | Deliver the pending frames to the data handler.
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| bool | mic_get_frame_time (MicDevice *this, uint32_t *sample_time) |
| | Get the capture time of the frame being delivered.
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| void | mic_stop (MicDevice *this) |
| | Stop capturing.
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| bool | mic_is_running (MicDevice *this) |
| | Check whether the microphone is running.
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| uint32_t | mic_get_channels (MicDevice *this) |
| | Get the number of audio channels.
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