mirror of
https://github.com/badaix/snapcast.git
synced 2025-05-24 22:46:14 +02:00
77 lines
1.7 KiB
C++
77 lines
1.7 KiB
C++
/***
|
|
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/>.
|
|
***/
|
|
|
|
#ifndef PLAYER_H
|
|
#define PLAYER_H
|
|
|
|
#include <string>
|
|
#include <thread>
|
|
#include <atomic>
|
|
#include <vector>
|
|
#include <alsa/asoundlib.h>
|
|
#include "stream.h"
|
|
#include "pcmDevice.h"
|
|
|
|
|
|
/// Audio Player
|
|
/**
|
|
* Audio player implementation using Alsa
|
|
*/
|
|
class Player
|
|
{
|
|
public:
|
|
Player(const PcmDevice& pcmDevice, Stream* stream);
|
|
virtual ~Player();
|
|
|
|
/// Set audio volume in range [0..1]
|
|
void setVolume(double volume);
|
|
void setMute(bool mute);
|
|
void start();
|
|
void stop();
|
|
|
|
/// List the system's audio output devices
|
|
static std::vector<PcmDevice> pcm_list(void);
|
|
|
|
private:
|
|
void initAlsa();
|
|
void uninitAlsa();
|
|
void worker();
|
|
|
|
template <typename T>
|
|
void adjustVolume(char *buffer, size_t count, double volume)
|
|
{
|
|
T* bufferT = (T*)buffer;
|
|
for (size_t n=0; n<count; ++n)
|
|
bufferT[n] *= volume;
|
|
}
|
|
|
|
snd_pcm_t* handle_;
|
|
snd_pcm_uframes_t frames_;
|
|
|
|
char *buff_;
|
|
std::atomic<bool> active_;
|
|
Stream* stream_;
|
|
std::thread playerThread_;
|
|
PcmDevice pcmDevice_;
|
|
double volume_;
|
|
bool muted_;
|
|
};
|
|
|
|
|
|
#endif
|
|
|