Repo created

TMessagesProj/jni/voip/libtgvoip/OpusDecoder.h

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+//
+// libtgvoip is free and unencumbered public domain software.
+// For more information, see http://unlicense.org or the UNLICENSE file
+// you should have received with this source code distribution.
+//
+
+#ifndef LIBTGVOIP_OPUSDECODER_H
+#define LIBTGVOIP_OPUSDECODER_H
+
+
+#include "MediaStreamItf.h"
+#include "threading.h"
+#include "BlockingQueue.h"
+#include "Buffers.h"
+#include "EchoCanceller.h"
+#include "JitterBuffer.h"
+#include "utils.h"
+#include <stdio.h>
+#include <vector>
+#include <memory>
+
+struct OpusDecoder;
+
+namespace tgvoip{
+class OpusDecoder {
+public:
+	TGVOIP_DISALLOW_COPY_AND_ASSIGN(OpusDecoder);
+	virtual void Start();
+
+	virtual void Stop();
+
+	OpusDecoder(const std::shared_ptr<MediaStreamItf>& dst, bool isAsync, bool needEC);
+	OpusDecoder(const std::unique_ptr<MediaStreamItf>& dst, bool isAsync, bool needEC);
+	OpusDecoder(MediaStreamItf* dst, bool isAsync, bool needEC);
+	virtual ~OpusDecoder();
+	size_t HandleCallback(unsigned char* data, size_t len);
+	void SetEchoCanceller(EchoCanceller* canceller);
+	void SetFrameDuration(uint32_t duration);
+	void SetJitterBuffer(std::shared_ptr<JitterBuffer> jitterBuffer);
+	void SetDTX(bool enable);
+	void SetLevelMeter(AudioLevelMeter* levelMeter);
+	void AddAudioEffect(effects::AudioEffect* effect);
+	void RemoveAudioEffect(effects::AudioEffect* effect);
+
+private:
+	void Initialize(bool isAsync, bool needEC);
+	static size_t Callback(unsigned char* data, size_t len, void* param);
+	void RunThread();
+	int DecodeNextFrame();
+	::OpusDecoder* dec;
+	::OpusDecoder* ecDec;
+	BlockingQueue<unsigned char*>* decodedQueue;
+	BufferPool* bufferPool;
+	unsigned char* buffer;
+	unsigned char* lastDecoded;
+	unsigned char* processedBuffer;
+	size_t outputBufferSize;
+	bool running;
+    Thread* thread;
+	Semaphore* semaphore;
+	uint32_t frameDuration;
+	EchoCanceller* echoCanceller;
+	std::shared_ptr<JitterBuffer> jitterBuffer;
+	AudioLevelMeter* levelMeter;
+	int consecutiveLostPackets;
+	bool enableDTX;
+	size_t silentPacketCount;
+	std::vector<effects::AudioEffect*> postProcEffects;
+	bool async;
+	unsigned char nextBuffer[8192];
+	unsigned char decodeBuffer[8192];
+	size_t nextLen;
+	unsigned int packetsPerFrame;
+	ptrdiff_t remainingDataLen;
+	bool prevWasEC;
+	int16_t prevLastSample;
+};
+}
+
+#endif //LIBTGVOIP_OPUSDECODER_H