sdrangel/plugins/channelrx/demoddatv/datvudpstream.cpp

79 wiersze
2.9 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2019 F4EXB //
// written by Edouard Griffiths //
// //
// 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 as version 3 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 General Public License V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#include <algorithm>
#include "datvudpstream.h"
const int DATVUDPStream::m_tsBlocksPerFrame = 7; // The usual value
DATVUDPStream::DATVUDPStream(int tsBlockSize) :
m_active(false),
m_address(QHostAddress::LocalHost),
m_port(8882),
m_tsBlockSize(tsBlockSize),
m_tsBlockIndex(0),
m_dataBytes(0),
m_totalBytes(0),
m_fifoSignalCount(0)
{
m_tsBuffer = new char[m_tsBlocksPerFrame*m_tsBlockSize];
}
DATVUDPStream::~DATVUDPStream()
{
delete[] m_tsBuffer;
}
void DATVUDPStream::pushData(const char *chrData, int nbTSBlocks)
{
if (!m_active) {
return;
}
for (int i = 0; i < nbTSBlocks; i++)
{
std::copy(chrData + i*m_tsBlockSize, chrData + (i+1)*m_tsBlockSize, m_tsBuffer + m_tsBlockIndex*m_tsBlockSize);
if (m_tsBlockIndex < m_tsBlocksPerFrame - 1)
{
m_tsBlockIndex++;
}
else
{
m_udpSocket.writeDatagram(m_tsBuffer, m_tsBlocksPerFrame*m_tsBlockSize, m_address, m_port);
m_dataBytes += m_tsBlocksPerFrame*m_tsBlockSize;
m_totalBytes += m_tsBlocksPerFrame*m_tsBlockSize;
if (++m_fifoSignalCount == 10)
{
emit fifoData(m_dataBytes, 0, m_totalBytes);
m_fifoSignalCount = 0;
}
m_dataBytes = 0;
m_tsBlockIndex = 0;
}
}
}
void DATVUDPStream::resetTotalReceived()
{
m_totalBytes = 0;
emit fifoData(m_dataBytes, 0, m_totalBytes);
}