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/*
Copyright (C) 2009 Her Majesty the Queen in Right of Canada (Communications
Research Center Canada)
Copyright (C) 2022 Matthias P. Braendli
http://www.opendigitalradio.org
*/
/*
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/>.
*/
#pragma once
#include <vector>
#include <array>
#include <string>
#include <cstdint>
#include "input/inputs.h"
#include "ManagementServer.h"
namespace Inputs {
class FileBase : public InputBase {
public:
virtual void open(const std::string& name);
virtual size_t readFrame(uint8_t *buffer, size_t size) = 0;
virtual size_t readFrame(uint8_t *buffer, size_t size, std::time_t seconds, int utco, uint32_t tsta);
virtual int setBitrate(int bitrate);
virtual void close();
virtual void setNonblocking(bool nonblock);
virtual void setLoadEntireFile(bool load_entire_file);
protected:
/* Rewind the file
* Returns -1 on failure, 0 on success
*/
virtual ssize_t rewind();
/* Read len bytes from the file into buf, and return
* the number of bytes read, or -1 in case of error.
*/
virtual ssize_t readFromFile(uint8_t* buf, size_t len);
virtual ssize_t load_entire_file();
// We use unix open() instead of fopen() because
// of non-blocking I/O
int m_fd = -1;
std::string m_filename;
bool m_nonblock = false;
bool m_load_entire_file = false;
std::vector<uint8_t> m_nonblock_buffer;
size_t m_file_contents_offset = 0;
std::vector<uint8_t> m_file_contents;
bool m_file_open_alert_shown = false;
};
class MPEGFile : public FileBase {
public:
virtual size_t readFrame(uint8_t *buffer, size_t size);
virtual int setBitrate(int bitrate);
private:
bool m_parity = false;
};
class RawFile : public FileBase {
public:
virtual size_t readFrame(uint8_t *buffer, size_t size);
};
class PacketFile : public FileBase {
public:
PacketFile(bool enhancedPacketMode);
virtual size_t readFrame(uint8_t *buffer, size_t size);
protected:
std::array<uint8_t, 96> m_packetData;
size_t m_packetLength = 0;
/* Enhanced packet mode enables FEC for MSC packet mode
* as described in EN 300 401 Clause 5.3.5
*/
bool m_enhancedPacketEnabled = false;
std::array<std::array<uint8_t, 204>,12> m_enhancedPacketData;
size_t m_enhancedPacketWaiting = 0;
size_t m_enhancedPacketLength = 0;
};
};
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