89 lines
2.1 KiB
C
89 lines
2.1 KiB
C
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//
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// libtgvoip is free and unencumbered public domain software.
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// For more information, see http://unlicense.org or the UNLICENSE file
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// you should have received with this source code distribution.
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//
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#ifndef LIBTGVOIP_MEDIASTREAMINPUT_H
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#define LIBTGVOIP_MEDIASTREAMINPUT_H
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#include <string.h>
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#include <vector>
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#include <memory>
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#include <stdint.h>
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#include "threading.h"
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#include "BlockingQueue.h"
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#include "Buffers.h"
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namespace tgvoip{
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class EchoCanceller;
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class MediaStreamItf{
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public:
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virtual void Start()=0;
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virtual void Stop()=0;
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void SetCallback(size_t (*f)(unsigned char*, size_t, void*), void* param);
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//protected:
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size_t InvokeCallback(unsigned char* data, size_t length);
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private:
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size_t (*callback)(unsigned char*, size_t, void*)=NULL;
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void* callbackParam;
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};
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class AudioMixer : public MediaStreamItf{
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public:
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AudioMixer();
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virtual ~AudioMixer();
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void SetOutput(MediaStreamItf* output);
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virtual void Start();
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virtual void Stop();
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void AddInput(std::shared_ptr<MediaStreamItf> input);
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void RemoveInput(std::shared_ptr<MediaStreamItf> input);
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void SetInputVolume(std::shared_ptr<MediaStreamItf> input, float volumeDB);
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void SetEchoCanceller(EchoCanceller* aec);
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private:
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void RunThread();
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struct MixerInput{
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std::shared_ptr<MediaStreamItf> source;
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float multiplier;
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};
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Mutex inputsMutex;
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void DoCallback(unsigned char* data, size_t length);
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static size_t OutputCallback(unsigned char* data, size_t length, void* arg);
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std::vector<MixerInput> inputs;
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Thread* thread;
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BufferPool bufferPool;
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BlockingQueue<unsigned char*> processedQueue;
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Semaphore semaphore;
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EchoCanceller* echoCanceller;
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bool running;
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};
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class CallbackWrapper : public MediaStreamItf{
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public:
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CallbackWrapper(){};
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virtual ~CallbackWrapper(){};
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virtual void Start(){};
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virtual void Stop(){};
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};
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class AudioLevelMeter{
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public:
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AudioLevelMeter();
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float GetLevel();
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void Update(int16_t* samples, size_t count);
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private:
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int16_t absMax;
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int16_t count;
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int8_t currentLevel;
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int16_t currentLevelFullRange;
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};
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};
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#endif //LIBTGVOIP_MEDIASTREAMINPUT_H
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