/*
   Copyright (C) 2009 Red Hat, Inc.

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/

#ifndef _H_LINUX_RECORD
#define _H_LINUX_RECORD

#include <alsa/asoundlib.h>

#include "common.h"
#include "audio_devices.h"
#include "platform.h"

class WaveRecorder: public WaveRecordAbstract {
public:
    WaveRecorder(Platform::RecordClient& client,
                 uint32_t sampels_per_sec,
                 uint32_t bits_per_sample,
                 uint32_t channels);
    virtual ~WaveRecorder();

    virtual void start();
    virtual void stop();
    virtual bool abort();

private:
    bool init(uint32_t sampels_per_sec,
              uint32_t bits_per_sample,
              uint32_t channels);
    void cleanup();
    void on_event();

private:
    Platform::RecordClient& _client;
    snd_pcm_t* _pcm;
    snd_pcm_hw_params_t* _hw_params;
    snd_pcm_sw_params_t* _sw_params;
    uint32_t _sample_bytes;
    uint8_t* _frame;
    uint8_t* _frame_pos;
    uint8_t* _frame_end;
    class EventTrigger;
    EventTrigger* _event_trigger;
};

#endif