mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-27 05:38:31 +08:00
75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
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/*
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* MIT License
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*
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* Copyright (c) 2017 xiongziliang <771730766@qq.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef SDLAUDIOMIXER_AUDIOSRC_H_
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#define SDLAUDIOMIXER_AUDIOSRC_H_
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#include <memory>
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#include <string>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "SDL2/SDL.h"
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#ifdef __cplusplus
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}
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#endif
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#if defined(_WIN32)
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#pragma comment(lib,"SDL2.lib")
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#endif //defined(_WIN32)
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using namespace std;
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class AudioSRCDelegate{
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public:
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virtual ~AudioSRCDelegate(){};
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virtual void setPCMBufferSize(int bufsize) = 0;
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virtual int getPCMSampleBit() = 0;
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virtual int getPCMSampleRate() = 0;
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virtual int getPCMChannel() = 0;
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virtual int getPCMData(char *buf, int bufsize) = 0;
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};
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class AudioSRC
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{
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public:
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typedef std::shared_ptr<AudioSRC> Ptr;
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AudioSRC(AudioSRCDelegate *);
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virtual ~AudioSRC();
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void setEnableMix(bool flag);
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void setOutputAudioConfig(const SDL_AudioSpec &cfg);
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//此处buf大小务必要比bufsize大的多
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int getPCMData(char *buf, int bufsize);
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private:
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AudioSRCDelegate *_delegate;
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SDL_AudioCVT _audioCvt;
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bool _enableMix = true;
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int _pcmSize = 0;
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string _pcmBuf;
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};
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#endif /* SDLAUDIOMIXER_AUDIOSRC_H_ */
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