Easy playback library for PwmOutSpeaker.

EasyPlaybackPWM.h

Committer:
dkato
Date:
2017-07-06
Revision:
0:41ab76b22961

File content as of revision 0:41ab76b22961:

/* mbed EasyPlaybackPWM Library
 * Copyright (C) 2017 dkato
 *
 * 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 __EASY_PLAYBACK_PWM_H__
#define __EASY_PLAYBACK_PWM_H__

#include <string>
#include <map>
#include "EasyDecoder.h"
#include "PwmOutSpeaker.h"

class EasyPlaybackPWM
{
public:
    EasyPlaybackPWM(PinName pwm_l, PinName pwm_r);
    ~EasyPlaybackPWM();
    bool get_tag(const char* filename, char* p_title, char* p_artist, char* p_album, uint16_t tag_size);
    bool play(const char* filename);
    bool is_paused(void);
    void pause(void);
    void pause(bool type);
    void skip(void);
    bool outputVolume(float VolumeOut);

    template<typename T>
    void add_decoder(const string& extension) {
        m_lpDecoders[extension] = &T::inst;
    }

private:
    #define AUDIO_WRITE_BUFF_SIZE  (4096)
    PwmOutSpeaker audio;
    bool _skip;
    bool _pause;
    uint8_t *_audio_buf;
    std::map<std::string, EasyDecoder*(*)()> m_lpDecoders;

    EasyDecoder * create_decoer_class(const char* filename);
};

#endif