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added PCM reader base class

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badaix 2015-11-04 19:47:59 +01:00
parent 6d1cc2d081
commit 2036477446
8 changed files with 166 additions and 80 deletions
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server/pcmreader/pcmReader.cpp Normal file
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/***
This file is part of snapcast
Copyright (C) 2015 Johannes Pohl
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 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 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 <memory>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include "pcmReader.h"
#include "../encoder/encoderFactory.h"
#include "common/log.h"
#include "common/snapException.h"
using namespace std;
PcmReader::PcmReader(PcmListener* pcmListener, const msg::SampleFormat& sampleFormat, const std::string& codec, const std::string& fifoName, size_t pcmReadMs) : pcmListener_(pcmListener), sampleFormat_(sampleFormat), pcmReadMs_(pcmReadMs)
{
EncoderFactory encoderFactory;
encoder_.reset(encoderFactory.createEncoder(codec));
}
PcmReader::~PcmReader()
{
stop();
close(fd_);
}
msg::Header* PcmReader::getHeader()
{
return encoder_->getHeader();
}
void PcmReader::start()
{
encoder_->init(this, sampleFormat_);
active_ = true;
readerThread_ = thread(&PcmReader::worker, this);
}
void PcmReader::stop()
{
if (active_)
{
active_ = false;
readerThread_.join();
}
}
void PcmReader::onChunkEncoded(const Encoder* encoder, msg::PcmChunk* chunk, double duration)
{
// logO << "onChunkEncoded: " << duration << " us\n";
if (duration <= 0)
return;
chunk->timestamp.sec = tvEncodedChunk_.tv_sec;
chunk->timestamp.usec = tvEncodedChunk_.tv_usec;
chronos::addUs(tvEncodedChunk_, duration * 1000);
pcmListener_->onChunkRead(this, chunk, duration);
}