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/*
Copyright (C) 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/>.
*/
#include "dabInputDmbFile.h"
#include "dabInputFifo.h"
#include "Dmb.h"
#include "UdpSocket.h"
#include <string.h>
#include <stdio.h>
#ifdef HAVE_FORMAT_DMB
struct dabInputDmbFileData {
FILE* file;
Dmb* dmb;
dabInputFifoStats stats;
unsigned char buffer[188];
unsigned bufferLength;
};
struct dabInputOperations dabInputDmbFileOperations = {
dabInputDmbFileInit,
dabInputDmbFileOpen,
dabInputSetbuf,
NULL,
NULL,
NULL,
dabInputDmbFileRead,
dabInputSetbitrate,
dabInputDmbFileClose,
dabInputDmbFileClean,
NULL
};
int dabInputDmbFileInit(void** args)
{
dabInputDmbFileData* input = new dabInputDmbFileData;
memset(&input->stats, 0, sizeof(input->stats));
input->stats.id = dabInputFifoData::nb++;
input->file = NULL;
input->bufferLength = 0;
input->dmb = new Dmb();
*args = input;
return 0;
}
int dabInputDmbFileOpen(void* args, const char* inputName)
{
int returnCode = 0;
dabInputDmbFileData* input = (dabInputDmbFileData*)args;
input->file = fopen(inputName, "r");
if (input->file == NULL) {
perror(inputName);
returnCode = -1;
}
return returnCode;;
}
int dabInputDmbFileRead(dabInputOperations* ops, void* args, void* buffer, int size)
{
int nbBytes = 0;
dabInputDmbFileData* input = (dabInputDmbFileData*)args;
dabInputFifoStats* stats = (dabInputFifoStats*)&input->stats;
input->stats.frameRecords[input->stats.frameCount].curSize = 0;
input->stats.frameRecords[input->stats.frameCount].maxSize = size;
if (input->bufferLength == 0) {
input->bufferLength = fread(input->buffer, 188, 1, input->file);
}
/* while ((nbBytes = writePacket(input->packet->getData(),
input->packet->getLength(), buffer, size, input->info))
!= 0) {
input->stats.frameRecords[input->stats.frameCount].curSize = nbBytes;
input->socket->receive(*input->packet);
}*/
while ((nbBytes = input->dmb->encode(input->buffer,
input->bufferLength * 188, buffer, size))
!= 0) {
input->stats.frameRecords[input->stats.frameCount].curSize = nbBytes;
input->bufferLength = fread(input->buffer, 188, 1, input->file);
if (input->bufferLength == 0) {
etiLog.log(info, "reach end of file -> rewinding\n");
if (fseek(input->file, 0, SEEK_SET) == 0) {
input->bufferLength = fread(input->buffer, 188, 1, input->file);
}
}
//++mpgFrameNb;
}
//++dmbFrameNb;
if (input->bufferLength != 0) {
input->stats.frameRecords[input->stats.frameCount].curSize = size;
}
if (++stats->frameCount == NB_RECORDS) {
etiLog.log(info, "Data subchannel usage: (%i)",
stats->id);
for (int i = 0; i < stats->frameCount; ++i) {
etiLog.log(info, " %i/%i",
stats->frameRecords[i].curSize,
stats->frameRecords[i].maxSize);
}
etiLog.log(info, "\n");
stats->frameCount = 0;
}
return size;
}
int dabInputDmbFileClose(void* args)
{
dabInputDmbFileData* input = (dabInputDmbFileData*)args;
if (input->file != NULL) {
if (fclose(input->file)) {
perror("");
return -1;
}
}
return 0;
}
int dabInputDmbFileClean(void** args)
{
dabInputDmbFileData* input = (dabInputDmbFileData*)(*args);
dabInputDmbFileClose(args);
delete input->dmb;
delete input;
return 0;
}
#endif //HAVE_FORMAT_DMB
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