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/*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* ShowSaver.cpp
* Writes show data to a file.
* Copyright (C) 2011 Simon Newton
*
* The data file is in the form:
* universe-number channel1,channel2,channel3
* delay-in-ms
* universe-number channel1,channel2,channel3
*/
#include <errno.h>
#include <string.h>
#include <ola/DmxBuffer.h>
#include <ola/Logging.h>
#include <fstream>
#include <iostream>
#include <string>
#include "examples/ShowSaver.h"
using std::string;
using ola::DmxBuffer;
using std::endl;
const char ShowSaver::OLA_SHOW_HEADER[] = "OLA Show";
ShowSaver::ShowSaver(const string &filename)
: m_filename(filename) {
}
ShowSaver::~ShowSaver() {
Close();
}
/**
* Open the show file for writing.
* @returns true if we could open the file, false otherwise.
*/
bool ShowSaver::Open() {
m_show_file.open(m_filename.data());
if (!m_show_file.is_open()) {
OLA_FATAL << "Can't open " << m_filename << ": " << strerror(errno);
return false;
}
m_show_file << OLA_SHOW_HEADER << endl;
return true;
}
/**
* Close the show file
*/
void ShowSaver::Close() {
if (m_show_file.is_open()) {
m_show_file.close();
}
}
/**
* Write a new frame
*/
bool ShowSaver::NewFrame(const ola::TimeStamp &arrival_time,
unsigned int universe,
const ola::DmxBuffer &data) {
// TODO(simon): add much better error handling here
if (m_last_frame.IsSet()) {
// this is not the first frame so write the delay in ms
const ola::TimeInterval delta = arrival_time - m_last_frame;
m_show_file << delta.InMilliSeconds() << endl;
}
m_last_frame = arrival_time;
m_show_file << universe << " " << data.ToString() << endl;
return true;
}
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