mirror of
https://github.com/badaix/snapcast.git
synced 2025-05-03 20:26:38 +02:00
102 lines
2.6 KiB
C++
102 lines
2.6 KiB
C++
/***
|
|
This file is part of snapcast
|
|
Copyright (C) 2014-2016 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/>.
|
|
***/
|
|
|
|
#ifndef PCM_READER_H
|
|
#define PCM_READER_H
|
|
|
|
#include <thread>
|
|
#include <atomic>
|
|
#include <string>
|
|
#include <map>
|
|
#include "readerUri.h"
|
|
#include "../encoder/encoder.h"
|
|
#include "../json/json.hpp"
|
|
#include "message/sampleFormat.h"
|
|
#include "message/header.h"
|
|
|
|
|
|
class PcmReader;
|
|
|
|
enum ReaderState
|
|
{
|
|
kUnknown = 0,
|
|
kIdle = 1,
|
|
kPlaying = 2,
|
|
kDisabled = 3
|
|
};
|
|
|
|
|
|
/// Callback interface for users of PcmReader
|
|
/**
|
|
* Users of PcmReader should implement this to get the data
|
|
*/
|
|
class PcmListener
|
|
{
|
|
public:
|
|
virtual void onStateChanged(const PcmReader* pcmReader, const ReaderState& state) = 0;
|
|
virtual void onChunkRead(const PcmReader* pcmReader, const msg::PcmChunk* chunk, double duration) = 0;
|
|
virtual void onResync(const PcmReader* pcmReader, double ms) = 0;
|
|
};
|
|
|
|
|
|
/// Reads and decodes PCM data
|
|
/**
|
|
* Reads PCM and passes the data to an encoder.
|
|
* Implements EncoderListener to get the encoded data.
|
|
* Data is passed to the PcmListener
|
|
*/
|
|
class PcmReader : public EncoderListener
|
|
{
|
|
public:
|
|
/// ctor. Encoded PCM data is passed to the PcmListener
|
|
PcmReader(PcmListener* pcmListener, const ReaderUri& uri);
|
|
virtual ~PcmReader();
|
|
|
|
virtual void start();
|
|
virtual void stop();
|
|
|
|
/// Implementation of EncoderListener::onChunkEncoded
|
|
virtual void onChunkEncoded(const Encoder* encoder, msg::PcmChunk* chunk, double duration);
|
|
virtual std::shared_ptr<msg::Header> getHeader();
|
|
|
|
virtual const ReaderUri& getUri() const;
|
|
virtual const std::string& getName() const;
|
|
virtual const SampleFormat& getSampleFormat() const;
|
|
|
|
virtual ReaderState getState() const;
|
|
virtual json toJson() const;
|
|
|
|
|
|
protected:
|
|
virtual void worker() = 0;
|
|
void setState(const ReaderState& newState);
|
|
|
|
timeval tvEncodedChunk_;
|
|
std::atomic<bool> active_;
|
|
std::thread readerThread_;
|
|
PcmListener* pcmListener_;
|
|
ReaderUri uri_;
|
|
SampleFormat sampleFormat_;
|
|
size_t pcmReadMs_;
|
|
std::unique_ptr<Encoder> encoder_;
|
|
std::string name_;
|
|
ReaderState state_;
|
|
};
|
|
|
|
|
|
#endif
|