/*

 * Copyright (c) 2022 Huawei Device Co., Ltd.

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */



#ifndef ALSA_SND_CAPTURE_H

#define ALSA_SND_CAPTURE_H



#include "alsa_soundcard.h"



#ifdef __cplusplus

extern "C" {

#endif



typedef void* CapturePriData;



struct AlsaCapture {

    struct AlsaSoundCard soundCard;

    enum AudioPortPin descPins;

    bool muteState;

    bool periodEvent; /* produce poll event after each period */

    snd_pcm_sframes_t bufferSize;

    snd_pcm_sframes_t periodSize;

    unsigned int bufferTime;    /* (0.5s): ring buffer length in us */

    unsigned int periodTime;    /* (0.1s): period time in us */

    int resample;    /* enable alsa-lib resampling */

    CapturePriData priData;



    /* Capture scene */

    int32_t (*Init)(struct AlsaCapture*);

    int32_t (*Open)(struct AlsaCapture *);

    int32_t (*SelectScene)(struct AlsaCapture *, enum AudioPortPin, const struct PathDeviceInfo *);

    int32_t (*Start)(struct AlsaCapture *);

    int32_t (*Stop)(struct AlsaCapture *);

    int32_t (*Close)(struct AlsaCapture *);

    int32_t (*Read)(struct AlsaCapture *, struct AudioHwCaptureParam *);

    int32_t (*GetMmapPosition)(struct AlsaCapture *);

    int32_t (*MmapRead)(struct AlsaCapture *, const struct AudioHwCaptureParam *);



    /* volume operation */

    int32_t (*GetVolThreshold)(struct AlsaCapture *, long *, long *);

    int32_t (*GetVolume)(struct AlsaCapture *, long *);

    int32_t (*SetVolume)(struct AlsaCapture *, long);



    /* gain operation */

    int32_t (*GetGainThreshold)(struct AlsaCapture *, float *, float *);

    int32_t (*GetGain)(struct AlsaCapture *, float *);

    int32_t (*SetGain)(struct AlsaCapture *, float);



    /* mute operation */

    bool  (*GetMute)(struct AlsaCapture *);

    int32_t (*SetMute)(struct AlsaCapture *, bool);



    /* set pause or resume state */

    int32_t (*SetPauseState)(struct AlsaCapture *, bool);

};



struct AlsaCapture *CaptureCreateInstance(const char* adapterName);

struct AlsaCapture *CaptureGetInstance(const char *adapterName);

int32_t CaptureSetParams(struct AlsaCapture *captureIns, const struct AudioHwCaptureParam *handleData);

void  CaptureSetPriData(struct AlsaCapture *captureIns, CapturePriData data);

CapturePriData CaptureGetPriData(struct AlsaCapture *captureIns);



/*

    Different platforms implement this function rewriting capture implementation

 */

int32_t CaptureOverrideFunc(struct AlsaCapture *captureIns);



#ifdef __cplusplus

}

#endif



#endif /* ALSA_SND_CAPTURE_H */