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/*
Copyright (C) 2009 Her Majesty the Queen in Right of Canada (Communications
Research Center Canada)
*/
/*
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 "dabInputDabplusFile.h"
#include "dabInput.h"
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#ifndef _WIN32
# define O_BINARY 0
#endif
#ifdef HAVE_FORMAT_DABPLUS
# ifdef HAVE_INPUT_FILE
struct dabInputOperations dabInputDabplusFileOperations = {
dabInputDabplusFileInit,
dabInputDabplusFileOpen,
dabInputSetbuf,
dabInputDabplusFileRead,
NULL,
NULL,
dabInputDabplusFileReadFrame,
dabInputSetbitrate,
dabInputDabplusFileClose,
dabInputDabplusFileClean,
dabInputDabplusFileRewind
};
int dabInputDabplusFileInit(void** args)
{
dabInputDabplusFileData* data = new dabInputDabplusFileData;
data->file = -1;
data->buffer = NULL;
data->bufferSize = 0;
data->bufferIndex = 0;
*args = data;
return 0;
}
int dabInputDabplusFileOpen(void* args, const char* filename)
{
dabInputDabplusFileData* data = (dabInputDabplusFileData*)args;
data->file = open(filename, O_RDONLY | O_BINARY);
if (data->file == -1) {
perror(filename);
return -1;
}
return 0;
}
int dabInputDabplusFileRead(void* args, void* buffer, int size)
{
dabInputDabplusFileData* data = (dabInputDabplusFileData*)args;
if (data->bufferSize != size * 5) {
if (data->buffer == NULL) {
delete[] data->buffer;
}
data->buffer = new uint8_t[size * 5];
data->bufferSize = size * 5;
data->bufferIndex = 0;
}
if (data->bufferIndex + size > data->bufferSize) {
int ret = read(data->file, data->buffer, data->bufferSize);
if (ret != data->bufferSize) {
if (ret != 0) {
etiLog.log(alert, "ERROR: Incomplete DAB+ frame!\n");
}
return 0;
}
data->bufferIndex = 0;
}
memcpy(buffer, &data->buffer[data->bufferIndex], size);
data->bufferIndex += size;
return size;
}
int dabInputDabplusFileReadFrame(dabInputOperations* ops, void* args,
void* buffer, int size)
{
//dabInputDabplusFileData* data = (dabInputDabplusFileData*)args;
int result;
uint8_t* dataOut = reinterpret_cast<uint8_t*>(buffer);
result = ops->read(args, dataOut, size);
if (result == -1) {
etiLog.log(alert, "ERROR: Can't read file\n");
perror("");
return -1;
}
if (result < size) {
int sizeOut = result;
etiLog.log(info, "reach end of file -> rewinding\n");
if (ops->rewind(args) == -1) {
etiLog.log(alert, "ERROR: Can't rewind file\n");
return -1;
}
result = ops->read(args, dataOut + sizeOut, size - sizeOut);
if (result == -1) {
etiLog.log(alert, "ERROR: Can't read file\n");
perror("");
return -1;
}
if (result < size) {
etiLog.log(alert, "ERROR: Not enought data in file\n");
return -1;
}
}
return size;
}
int dabInputDabplusFileClose(void* args)
{
dabInputDabplusFileData* data = (dabInputDabplusFileData*)args;
if (data->file != -1) {
close(data->file);
}
return 0;
}
int dabInputDabplusFileClean(void** args)
{
dabInputDabplusFileData* data = (dabInputDabplusFileData*)*args;
if (data->buffer != NULL) {
delete[] data->buffer;
}
delete data;
return 0;
}
int dabInputDabplusFileRewind(void* args)
{
dabInputDabplusFileData* data = (dabInputDabplusFileData*)args;
return lseek(data->file, 0, SEEK_SET);
}
# endif
#endif
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