64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
/*
|
|
AudioFileSourceBuffer
|
|
Double-buffered input file using system RAM
|
|
|
|
Copyright (C) 2017 Earle F. Philhower, III
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef _AUDIOFILESOURCEBUFFER_H
|
|
#define _AUDIOFILESOURCEBUFFER_H
|
|
|
|
#include "AudioFileSource.h"
|
|
|
|
|
|
class AudioFileSourceBuffer : public AudioFileSource
|
|
{
|
|
public:
|
|
AudioFileSourceBuffer(AudioFileSource *in, uint32_t bufferBytes);
|
|
AudioFileSourceBuffer(AudioFileSource *in, void *buffer, uint32_t bufferBytes); // Pre-allocated buffer by app
|
|
virtual ~AudioFileSourceBuffer() override;
|
|
|
|
virtual uint32_t read(void *data, uint32_t len) override;
|
|
virtual bool seek(int32_t pos, int dir) override;
|
|
virtual bool close() override;
|
|
virtual bool isOpen() override;
|
|
virtual uint32_t getSize() override;
|
|
virtual uint32_t getPos() override;
|
|
virtual bool loop() override;
|
|
|
|
virtual bool fill(uint32_t len, uint32_t max_delay);
|
|
virtual uint32_t getFillLevel();
|
|
|
|
enum { STATUS_FILLING=2, STATUS_UNDERFLOW };
|
|
|
|
private:
|
|
virtual void fill();
|
|
|
|
private:
|
|
AudioFileSource *src;
|
|
uint32_t buffSize;
|
|
uint8_t *buffer;
|
|
bool deallocateBuffer;
|
|
uint32_t writePtr;
|
|
uint32_t readPtr;
|
|
uint32_t length;
|
|
bool filled;
|
|
};
|
|
|
|
|
|
#endif
|
|
|