mirror of
https://github.com/badaix/snapcast
synced 2025-02-22 23:24:29 +01:00
86 lines
3.2 KiB
C++
86 lines
3.2 KiB
C++
/***
|
|
This file is part of snapcast
|
|
Copyright (C) 2014-2024 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/>.
|
|
***/
|
|
|
|
#pragma once
|
|
|
|
|
|
// local headers
|
|
#include "common/resampler.hpp"
|
|
#include "pcm_stream.hpp"
|
|
|
|
// standard headers
|
|
#include <memory>
|
|
|
|
namespace streamreader
|
|
{
|
|
|
|
// Mixing digital audio:
|
|
// https://www.vttoth.com/CMS/technical-notes/?view=article&id=68
|
|
|
|
/// 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 PcmStream::Listener
|
|
*/
|
|
class MetaStream : public PcmStream, public PcmStream::Listener
|
|
{
|
|
public:
|
|
/// ctor. Encoded PCM data is passed to the PcmStream::Listener
|
|
MetaStream(PcmStream::Listener* pcmListener, const std::vector<std::shared_ptr<PcmStream>>& streams, boost::asio::io_context& ioc,
|
|
const ServerSettings& server_settings, const StreamUri& uri);
|
|
virtual ~MetaStream();
|
|
|
|
void start() override;
|
|
void stop() override;
|
|
|
|
// Setter for properties
|
|
void setShuffle(bool shuffle, ResultHandler handler) override;
|
|
void setLoopStatus(LoopStatus status, ResultHandler handler) override;
|
|
void setVolume(uint16_t volume, ResultHandler handler) override;
|
|
void setMute(bool mute, ResultHandler handler) override;
|
|
void setRate(float rate, ResultHandler handler) override;
|
|
|
|
// Control commands
|
|
void setPosition(std::chrono::milliseconds position, ResultHandler handler) override;
|
|
void seek(std::chrono::milliseconds offset, ResultHandler handler) override;
|
|
void next(ResultHandler handler) override;
|
|
void previous(ResultHandler handler) override;
|
|
void pause(ResultHandler handler) override;
|
|
void playPause(ResultHandler handler) override;
|
|
void stop(ResultHandler handler) override;
|
|
void play(ResultHandler handler) override;
|
|
|
|
protected:
|
|
/// Implementation of PcmStream::Listener
|
|
void onPropertiesChanged(const PcmStream* pcmStream, const Properties& properties) override;
|
|
void onStateChanged(const PcmStream* pcmStream, ReaderState state) override;
|
|
void onChunkRead(const PcmStream* pcmStream, const msg::PcmChunk& chunk) override;
|
|
void onChunkEncoded(const PcmStream* pcmStream, std::shared_ptr<msg::PcmChunk> chunk, double duration) override;
|
|
void onResync(const PcmStream* pcmStream, double ms) override;
|
|
|
|
protected:
|
|
std::vector<std::shared_ptr<PcmStream>> streams_;
|
|
std::recursive_mutex active_mutex_;
|
|
std::shared_ptr<PcmStream> active_stream_;
|
|
std::unique_ptr<Resampler> resampler_;
|
|
bool first_read_;
|
|
std::chrono::time_point<std::chrono::steady_clock> next_tick_;
|
|
};
|
|
|
|
} // namespace streamreader
|