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/*
Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011 Her Majesty
the Queen in Right of Canada (Communications Research Center Canada)
Copyright (C) 2018
Matthias P. Braendli, matthias.braendli@mpb.li
http://opendigitalradio.org
*/
/*
This file is part of ODR-DabMod.
ODR-DabMod 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-DabMod 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-DabMod. If not, see <http://www.gnu.org/licenses/>.
*/
#include "OutputFile.h"
#include "PcDebug.h"
#include "Log.h"
#include <string>
#include <chrono>
#include <stdexcept>
#include <cassert>
#include <cmath>
using namespace std;
OutputFile::OutputFile(const std::string& filename, bool show_metadata) :
ModOutput(), ModMetadata(),
myShowMetadata(show_metadata),
myFilename(filename)
{
PDEBUG("OutputFile::OutputFile(filename: %s) @ %p\n",
filename.c_str(), this);
FILE* fd = fopen(filename.c_str(), "w");
if (fd == nullptr) {
perror(filename.c_str());
throw std::runtime_error(
"OutputFile::OutputFile() unable to open file!");
}
myFile.reset(fd);
}
int OutputFile::process(Buffer* dataIn)
{
PDEBUG("OutputFile::process(%p)\n", dataIn);
assert(dataIn != nullptr);
if (fwrite(dataIn->getData(), dataIn->getLength(), 1, myFile.get()) == 0) {
throw std::runtime_error(
"OutputFile::process() unable to write to file!");
}
return dataIn->getLength();
}
meta_vec_t OutputFile::process_metadata(const meta_vec_t& metadataIn)
{
if (myShowMetadata) {
stringstream ss;
frame_timestamp first_ts;
for (const auto& md : metadataIn) {
if (md.ts) {
// The following code assumes TM I, where we get called every 96ms.
// Support for other transmission modes skipped because this is mostly
// debugging code.
if (md.ts->fp == 0 or md.ts->fp == 4) {
first_ts = *md.ts;
}
ss << " FCT=" << md.ts->fct <<
" FP=" << (int)md.ts->fp;
if (md.ts->timestamp_valid) {
ss << " TS=" << md.ts->timestamp_sec << " + " <<
std::fixed
<< (double)md.ts->timestamp_pps / 163840000.0 << ";";
}
else {
ss << " TS invalid;";
}
}
else {
ss << " void, ";
}
}
if (myLastTimestamp.timestamp_valid) {
if (first_ts.timestamp_valid) {
uint32_t timestamp = myLastTimestamp.timestamp_pps;
timestamp += 96 << 14; // Shift 96ms by 14 to Timestamp level 2
if (timestamp > 0xf9FFff) {
timestamp -= 0xfa0000; // Substract 16384000, corresponding to one second
myLastTimestamp.timestamp_sec += 1;
}
myLastTimestamp.timestamp_pps = timestamp;
if (myLastTimestamp.timestamp_sec != first_ts.timestamp_sec or
myLastTimestamp.timestamp_pps != first_ts.timestamp_pps) {
ss << " TS wrong interval; ";
}
myLastTimestamp = first_ts;
}
else {
ss << " TS of FP=0 MISSING; ";
myLastTimestamp.timestamp_valid = false;
}
}
else {
// Includes invalid and valid cases
myLastTimestamp = first_ts;
}
if (metadataIn.empty()) {
etiLog.level(debug) << "Output File got no metadata";
}
else {
using namespace std::chrono;
const auto now = system_clock::now();
const int64_t ticks_now = duration_cast<milliseconds>(now.time_since_epoch()).count();
//const int64_t first_ts_ticks = first_ts.timestamp_sec * 1000 + first_ts.timestamp_pps / 16384;
const int64_t first_ts_ticks = std::llrint(first_ts.get_real_secs() * 1000);
ss << " DELTA: " << first_ts_ticks - ticks_now << "ms;";
etiLog.level(debug) << "Output File metadata: " << ss.str();
}
}
return {};
}
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