85 lines
3.2 KiB
C
85 lines
3.2 KiB
C
/*
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*******************************************************************************
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* Copyright (c) 2010-2022 VATICS(KNERON) Inc. All rights reserved.
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*
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* +-----------------------------------------------------------------+
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* | THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY ONLY BE USED |
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* | AND COPIED IN ACCORDANCE WITH THE TERMS AND CONDITIONS OF SUCH |
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* | A LICENSE AND WITH THE INCLUSION OF THE THIS COPY RIGHT NOTICE. |
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* | THIS SOFTWARE OR ANY OTHER COPIES OF THIS SOFTWARE MAY NOT BE |
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* | PROVIDED OR OTHERWISE MADE AVAILABLE TO ANY OTHER PERSON. THE |
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* | OWNERSHIP AND TITLE OF THIS SOFTWARE IS NOT TRANSFERRED. |
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* | |
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* | THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT |
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* | ANY PRIOR NOTICE AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY |
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* | VATICS(KNERON) INC. |
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* +-----------------------------------------------------------------+
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*
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*******************************************************************************
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*/
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#ifndef AUDIO_CAPTURE_MMAP_H
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#define AUDIO_CAPTURE_MMAP_H
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wpedantic"
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#include <alsa/asoundlib.h>
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#pragma GCC diagnostic pop
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#include <sys/time.h>
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#include <audiotk/audio_common.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct ATK_AUDIOCAP_HANDLE_T ATK_AUDIOCAP_HANDLE_T;
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typedef struct
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{
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int bIsInterleaved; /**< Interleaved mode. */
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unsigned int dwChannels; /**< Channels. */
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unsigned char *ppbyAudioBufs[ATK_AUDIO_MAX_CHANNELS]; /**< Buffer pointers to point audio data. */
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size_t dwDataBytes; /**< The number of bytes of data. */
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size_t dwOneFrameBytes; /**< The number of bytes of one frame. */
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struct timeval tDataTimestamp; /**< The timestamp of data frame. */
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} ATK_AUDIO_NOTIFY_DATA_INFO_T;
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typedef void (*ATK_AUDIO_CAP_DATA_FUNC)(const ATK_AUDIO_NOTIFY_DATA_INFO_T*, void*);
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typedef struct
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{
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const char *szPcmName; /**< The PCM name for audio device. */
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int bUseSimpleConfig; /**< If it is non-zero, we just use pcm_name, is_interleaved, format, channels_count, sample_rate and first callback to configure. */
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int bIsInterleaved; /**< Interleaved mode. */
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snd_pcm_format_t eFormat; /**< Sample format. */
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unsigned int dwChannelsCount; /**< Channels. */
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unsigned int dwSampleRate; /**< Sample rate. */
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unsigned int dwPeriodsPerBuffer; /**< Periods per buffer. */
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unsigned long dwPeriodSizeInFrames; /**< Distance between interrupts is # frames. */
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ATK_AUDIO_CAP_DATA_FUNC pfnCallback; /**< Callback function for receiving audio data. */
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void *pUserData; /**< Use private data. This data will be passed to callback function. */
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} ATK_AUDIOCAP_CONFIG_T;
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/**
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* @brief Function to initialize audio capture device.
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*
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* @param[in] ptConfig The audio capture device's configuration.
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* @return The handle of audio capture device (tk). If it is NULL, it fails.
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*/
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ATK_AUDIOCAP_HANDLE_T* ATK_AudioCap_Init(ATK_AUDIOCAP_CONFIG_T* ptConfig);
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/**
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* @brief Function to release audio capture device
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*
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* @param[in] ptHandle The handle of audio capture device (tk).
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*/
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void ATK_AudioCap_Release(ATK_AUDIOCAP_HANDLE_T *ptHandle);
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#ifdef __cplusplus
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}
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#endif
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#endif
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