2021-10-11 17:16:26 +08:00
|
|
|
|
/*
|
2021-06-29 17:44:35 +08:00
|
|
|
|
* Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
|
|
|
|
|
|
*
|
|
|
|
|
|
* This file is part of ZLMediaKit(https://github.com/ZLMediaKit/ZLMediaKit).
|
|
|
|
|
|
*
|
|
|
|
|
|
* Use of this source code is governed by MIT license that can be found in the
|
|
|
|
|
|
* LICENSE file in the root of the source tree. All contributing project authors
|
|
|
|
|
|
* may be found in the AUTHORS file in the root of the source tree.
|
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
#ifndef SDLAUDIOMIXER_SDLAUDIODEVICE_H_
|
|
|
|
|
|
#define SDLAUDIOMIXER_SDLAUDIODEVICE_H_
|
|
|
|
|
|
|
|
|
|
|
|
#include <mutex>
|
|
|
|
|
|
#include <memory>
|
|
|
|
|
|
#include <stdexcept>
|
|
|
|
|
|
#include <unordered_set>
|
|
|
|
|
|
|
|
|
|
|
|
#define DEFAULT_SAMPLERATE 48000
|
|
|
|
|
|
#define DEFAULT_FORMAT AUDIO_S16
|
|
|
|
|
|
#define DEFAULT_CHANNEL 2
|
|
|
|
|
|
#define DEFAULT_SAMPLES 1024
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
class AudioSRC;
|
|
|
|
|
|
|
|
|
|
|
|
//该对象主要实现sdl混音与播放
|
|
|
|
|
|
class SDLAudioDevice : public std::enable_shared_from_this<SDLAudioDevice>{
|
|
|
|
|
|
public:
|
|
|
|
|
|
using Ptr = std::shared_ptr<SDLAudioDevice>;
|
|
|
|
|
|
|
|
|
|
|
|
~SDLAudioDevice();
|
|
|
|
|
|
static SDLAudioDevice &Instance();
|
|
|
|
|
|
|
|
|
|
|
|
void addChannel(AudioSRC *chn);
|
|
|
|
|
|
void delChannel(AudioSRC *chn);
|
|
|
|
|
|
|
|
|
|
|
|
private:
|
|
|
|
|
|
SDLAudioDevice();
|
|
|
|
|
|
void onReqPCM(char *stream, int len);
|
|
|
|
|
|
|
|
|
|
|
|
private:
|
|
|
|
|
|
std::shared_ptr<char> _play_buf;
|
|
|
|
|
|
SDL_AudioSpec _audio_config;
|
2022-02-02 20:34:50 +08:00
|
|
|
|
std::recursive_mutex _channel_mtx;
|
|
|
|
|
|
std::unordered_set<AudioSRC *> _channels;
|
2021-06-29 17:44:35 +08:00
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
#endif /* SDLAUDIOMIXER_SDLAUDIODEVICE_H_ */
|
