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/*
Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Her Majesty the
Queen in Right of Canada (Communications Research Center Canada)
Copyright (C) 2017
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 "ModPlugin.h"
#include "PcDebug.h"
#include "Utils.h"
#include <stdexcept>
#include <string>
#define MODASSERT(cond) \
if (not (cond)) { \
throw std::runtime_error("Assertion failure: " #cond " for " + \
std::string(name())); \
}
int ModInput::process(
std::vector<Buffer*> dataIn,
std::vector<Buffer*> dataOut)
{
MODASSERT(dataIn.empty());
MODASSERT(dataOut.size() == 1);
return process(dataOut[0]);
}
int ModCodec::process(
std::vector<Buffer*> dataIn,
std::vector<Buffer*> dataOut)
{
MODASSERT(dataIn.size() == 1);
MODASSERT(dataOut.size() == 1);
return process(dataIn[0], dataOut[0]);
}
int ModMux::process(
std::vector<Buffer*> dataIn,
std::vector<Buffer*> dataOut)
{
MODASSERT(not dataIn.empty());
MODASSERT(dataOut.size() == 1);
return process(dataIn, dataOut[0]);
}
int ModOutput::process(
std::vector<Buffer*> dataIn,
std::vector<Buffer*> dataOut)
{
MODASSERT(dataIn.size() == 1);
MODASSERT(dataOut.empty());
return process(dataIn[0]);
}
PipelinedModCodec::PipelinedModCodec() :
ModCodec(),
m_input_queue(),
m_output_queue(),
m_metadata_fifo(),
m_running(false),
m_thread()
{
}
PipelinedModCodec::~PipelinedModCodec()
{
m_input_queue.push({});
if (m_thread.joinable()) {
m_thread.join();
}
}
void PipelinedModCodec::start_pipeline_thread()
{
m_running = true;
m_thread = std::thread(&PipelinedModCodec::process_thread, this);
}
int PipelinedModCodec::process(Buffer* dataIn, Buffer* dataOut)
{
if (!m_running) {
return 0;
}
std::shared_ptr<Buffer> inbuffer =
std::make_shared<Buffer>(dataIn->getLength(), dataIn->getData());
m_input_queue.push(inbuffer);
if (m_ready_to_output_data) {
std::shared_ptr<Buffer> outbuffer;
m_output_queue.wait_and_pop(outbuffer);
dataOut->setData(outbuffer->getData(), outbuffer->getLength());
}
else {
dataOut->setLength(dataIn->getLength());
memset(dataOut->getData(), 0, dataOut->getLength());
m_ready_to_output_data = true;
}
return dataOut->getLength();
}
meta_vec_t PipelinedModCodec::process_metadata(const meta_vec_t& metadataIn)
{
m_metadata_fifo.push_back(metadataIn);
if (m_metadata_fifo.size() == 2) {
auto r = std::move(m_metadata_fifo.front());
m_metadata_fifo.pop_front();
return r;
}
else {
return {};
}
}
void PipelinedModCodec::process_thread()
{
set_thread_name(name());
set_realtime_prio(1);
while (m_running) {
std::shared_ptr<Buffer> dataIn;
m_input_queue.wait_and_pop(dataIn);
if (!dataIn or dataIn->getLength() == 0) {
break;
}
std::shared_ptr<Buffer> dataOut = std::make_shared<Buffer>();
dataOut->setLength(dataIn->getLength());
if (internal_process(dataIn.get(), dataOut.get()) == 0) {
m_running = false;
}
m_output_queue.push(dataOut);
}
m_running = false;
}
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