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/*
Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Her Majesty the Queen in
Right of Canada (Communications Research Center Canada)
Copyright (C) 2013 Matthias P. Braendli
http://mpb.li
*/
/*
This file is part of CRC-DabMux.
CRC-DabMux 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.
CRC-DabMux 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 CRC-DabMux. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _INPUT_H_
#define _INPUT_H_
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vector>
#include <string>
#include <stdint.h>
class InputBase {
public:
virtual int Open();
virtual int Lock(); // TODO get rid of lock/unlock
virtual int Unlock();
// ReadFrame must return exactly the right number of bytes
// for the format, which means it must fill the buffer to
// <size> bytes.
virtual int ReadFrame(void* buffer, int size);
// TODO: ehm, where do we need this ?
virtual int SetBitrate(int bitrate);
virtual int Close();
virtual int Clean(); // TODO destructor
};
/********************************************/
/** TEST INPUT ***********************/
/********************************************/
// Implement mostly everything, but don't do anything
class InputTest : InputBase {
public:
InputTest() : counter(0) {}
int Open();
int Lock();
int Unlock();
int ReadFrame(void* buffer, int size);
int SetBitrate(int bitrate);
int Close();
int Clean();
private:
unsigned long counter;
};
/********************************************/
/** FILE INPUTS ***********************/
/********************************************/
#ifdef HAVE_INPUT_FILE
// The InputFile is not used directly but defines some behaviour
// for Fifo, and also for different file types.
class InputFile : InputBase {
public:
InputFile(std::string fileName) : filename(fileName) {}
int Open();
int Close();
int Rewind();
protected:
long ReadData(void* data, size_t size, unsigned int tries);
std::string filename;
int file; // the file descriptor
};
#ifdef HAVE_FORMAT_MPEG
class InputMpegFile : InputFile {
public:
InputMpegFile(std::string fileName) : filename(fileName) {}
int ReadFrame(void* buffer, int size);
private:
bool parity;
};
#endif // HAVE_FORMAT_MPEG
#ifdef HAVE_FORMAT_DABPLUS
class InputDabplusFile : InputFile {
public:
InputMpegFile(std::string fileName) : filename(fileName) {}
int ReadFrame(void* buffer, int size);
private:
int Read(void* buffer, int size);
std::vector<uint8_t> buffer;
size_t bufferIndex;
};
#endif
#endif
#endif
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