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/*
Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Her Majesty the Queen in
Right of Canada (Communications Research Center Canada)
*/
/*
This file is part of ODR-DabMux.
ODR-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.
ODR-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 ODR-DabMux. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DAB_INPUT_H
#define DAB_INPUT_H
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "Log.h"
#include "RemoteControl.h"
#include <string>
extern Logger etiLog;
// TODO replace usage of dabInputOperations by a
// class hierarchy
struct dabInputOperations {
int (*init)(void** args);
int (*open)(void* args, const char* name);
int (*setbuf)(void* args, int size);
int (*read)(void* args, void* buffer, int size);
int (*lock)(void* args);
int (*unlock)(void* args);
int (*readFrame)(dabInputOperations* ops, void* args, void* buffer, int size);
int (*setBitrate)(dabInputOperations* ops, void* args, int bitrate);
int (*close)(void* args);
int (*clean)(void** args);
int (*rewind)(void* args);
bool operator==(const dabInputOperations&);
};
/* New input object base */
class DabInputBase {
public:
virtual int open(const std::string name) = 0;
virtual int readFrame(void* buffer, int size) = 0;
virtual int setBitrate(int bitrate) = 0;
virtual int close() = 0;
virtual ~DabInputBase() {}
protected:
DabInputBase() {}
};
/* Wrapper class for old-style dabInputOperations inputs */
class DabInputCompatible : public DabInputBase {
public:
DabInputCompatible(dabInputOperations ops)
: m_ops(ops)
{ m_ops.init(&args); }
virtual ~DabInputCompatible()
{ m_ops.clean(&args); }
virtual int open(const std::string name)
{ return m_ops.open(args, name.c_str()); }
virtual int setbuf(int size)
{ return m_ops.setbuf(args, size); }
virtual int readFrame(void* buffer, int size)
{
if (m_ops.lock) {
m_ops.lock(args);
}
int result = m_ops.readFrame(&m_ops, args, buffer, size);
if (m_ops.unlock) {
m_ops.unlock(args);
}
return result;
}
virtual int setBitrate(int bitrate)
{ return m_ops.setBitrate(&m_ops, args, bitrate); }
virtual int close()
{ return m_ops.close(args); }
virtual int rewind()
{ return m_ops.rewind(args); }
virtual int read(void* buffer, int size)
{ return m_ops.read(args, buffer, size); }
virtual dabInputOperations getOpts() { return m_ops; }
private:
DabInputCompatible& operator=(const DabInputCompatible& other);
DabInputCompatible(const DabInputCompatible& other);
dabInputOperations m_ops;
void* args;
};
int dabInputSetbuf(void* args, int size);
int dabInputSetbitrate(dabInputOperations* ops, void* args, int bitrate);
#endif // DAB_INPUT_H
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