OHOS-Audio-AudioCapturer.md - Openharmony v1.0 / docs / api / api-SmartVision-Devices - 最全华为鸿蒙分布式操作系统技术资料库，手册，指南

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OHOS-Audio-AudioCapturer.md

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# OHOS::Audio::AudioCapturer
## **Overview**
**Related Modules:**
[MultiMedia\_AudioCapturer](MultiMedia_AudioCapturer.md)
**Description:**
Provides functions for applications to implement audio capturing.
**Since:**
1.0
**Version:**
1.0
## **Summary**
## Public Member Functions

Public Member Function Name	Description
GetFrameCount ()	uint64_t Obtains the number of frames required in the current condition, in bytes per sample.
SetCapturerInfo (const AudioCapturerInfo info)	int32_t Sets audio capture parameters.
GetCapturerInfo (AudioCapturerInfo &info)	int32_t Obtains audio capture parameters.
Start ()	bool Starts audio recording.
Read (uint8_t *buffer, size_t userSize, bool isBlockingRead)	int32_t Reads audio data.
GetStatus ()	State Obtains the audio capture state.
GetAudioTime (Timestamp &timestamp, Timestamp::Timebase base)	bool Obtains the timestamp.
Stop ()	bool Stops audio recording.
Release ()	bool Releases a local AudioCapturer object.

## Static Public Member Functions

Static Public Member Function Name	Description
GetMinFrameCount (int32_t sampleRate, int32_t channelCount, AudioCodecFormat audioFormat, size_t &frameCount)	static bool Obtains the minimum number of frames required in a specified condition, in bytes per sample.

Static Public Member Function Name

Description

GetMinFrameCount (int32_t sampleRate, int32_t channelCount, AudioCodecFormat audioFormat, size_t &frameCount)

static bool

Obtains the minimum number of frames required in a specified condition, in bytes per sample.