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/*
Copyright (C) 2009 Her Majesty the Queen in Right of Canada (Communications
Research Center Canada)
Copyright (C) 2013 Matthias P. Braendli
http://mpb.li
Base class for all file and fifo-based inputs.
*/
/*
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/>.
*/
#include "inputs/Input.h"
#ifdef HAVE_FORMAT_DABPLUS
#ifdef HAVE_INPUT_FILE
#include "mpeg.h"
#include "TcpLog.h"
#include <string>
#include <vector>
#include <cstring>
#include <cstdlib>
#include <cstdio>
#include <stdint.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#ifndef _WIN32
# define O_BINARY 0
#endif
extern TcpLog etiLog;
int InputDabplusFile::ReadSuperFrame(void* buffer, int size)
{
if (this->buffer.size() != size * 5) {
this->buffer.resize(size * 5);
this->bufferIndex = 0;
}
if (this->bufferIndex + size > this->buffer.size()) {
int ret = read(this->file, &this->buffer[0], this->buffer.size());
if (ret != this->buffer.size()) {
if (ret != 0) {
etiLog.print(TcpLog::CRIT, "ERROR: Incomplete DAB+ frame!\n");
}
return 0;
}
this->bufferIndex = 0;
}
memcpy(buffer, &this->buffer[this->bufferIndex], size);
this->bufferIndex += size;
return size;
}
int InputDabplusFile::ReadSource(void* buffer, int size)
{
int result;
uint8_t* dataOut = reinterpret_cast<uint8_t*>(buffer);
result = ReadSuperFrame(dataOut, size);
if (result == -1) {
etiLog.print(TcpLog::CRIT, "ERROR: Can't read file\n");
perror("");
return -1;
}
if (result < size) {
int sizeOut = result;
etiLog.print(TcpLog::NOTICE, "reach end of file -> rewinding\n");
if (Rewind() == -1) {
etiLog.print(TcpLog::CRIT, "ERROR: Can't rewind file\n");
return -1;
}
result = ReadSuperFrame(dataOut + sizeOut, size - sizeOut);
if (result == -1) {
etiLog.print(TcpLog::CRIT, "ERROR: Can't read file\n");
perror("");
return -1;
}
if (result < size) {
etiLog.print(TcpLog::CRIT, "ERROR: Not enought data in file\n");
return -1;
}
}
return size;
}
#endif
#endif
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