libtgvoip/client/android/tg_voip_jni.cpp

//
// 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.
//

#include <jni.h>
#include <string.h>
#include <map>
#include <string>
#include <vector>
#include <libtgvoip/VoIPServerConfig.h>
#include "../../VoIPController.h"
#include "../../os/android/AudioOutputOpenSLES.h"
#include "../../os/android/AudioInputOpenSLES.h"
#include "../../os/android/AudioInputAndroid.h"
#include "../../os/android/AudioOutputAndroid.h"
#include "../../audio/Resampler.h"

JavaVM* sharedJVM;
jfieldID audioRecordInstanceFld=NULL;
jfieldID audioTrackInstanceFld=NULL;
jmethodID setStateMethod=NULL;
jmethodID setSignalBarsMethod=NULL;
jmethodID setSelfStreamsMethod=NULL;
jmethodID setParticipantAudioEnabledMethod=NULL;
jmethodID groupCallKeyReceivedMethod=NULL;
jmethodID groupCallKeySentMethod=NULL;
jmethodID callUpgradeRequestReceivedMethod=NULL;
jclass jniUtilitiesClass=NULL;

struct impl_data_android_t{
	jobject javaObject;
};

using namespace tgvoip;
using namespace tgvoip::audio;

namespace tgvoip {
	void updateConnectionState(VoIPController *cntrlr, int state){
		impl_data_android_t *impl=(impl_data_android_t *) cntrlr->implData;
		if(!impl->javaObject)
			return;
		JNIEnv *env=NULL;
		bool didAttach=false;
		sharedJVM->GetEnv((void **) &env, JNI_VERSION_1_6);
		if(!env){
			sharedJVM->AttachCurrentThread(&env, NULL);
			didAttach=true;
		}

		if(setStateMethod)
			env->CallVoidMethod(impl->javaObject, setStateMethod, state);

		if(didAttach){
			sharedJVM->DetachCurrentThread();
		}
	}

	void updateSignalBarCount(VoIPController *cntrlr, int count){
		impl_data_android_t *impl=(impl_data_android_t *) cntrlr->implData;
		if(!impl->javaObject)
			return;
		JNIEnv *env=NULL;
		bool didAttach=false;
		sharedJVM->GetEnv((void **) &env, JNI_VERSION_1_6);
		if(!env){
			sharedJVM->AttachCurrentThread(&env, NULL);
			didAttach=true;
		}

		if(setSignalBarsMethod)
			env->CallVoidMethod(impl->javaObject, setSignalBarsMethod, count);

		if(didAttach){
			sharedJVM->DetachCurrentThread();
		}
	}

	void updateGroupCallStreams(VoIPGroupController *cntrlr, unsigned char *streams, size_t len){
		impl_data_android_t *impl=(impl_data_android_t *) cntrlr->implData;
		if(!impl->javaObject)
			return;
		JNIEnv *env=NULL;
		bool didAttach=false;
		sharedJVM->GetEnv((void **) &env, JNI_VERSION_1_6);
		if(!env){
			sharedJVM->AttachCurrentThread(&env, NULL);
			didAttach=true;
		}

		if(setSelfStreamsMethod){
			jbyteArray jstreams=env->NewByteArray(len);
			jbyte *el=env->GetByteArrayElements(jstreams, NULL);
			memcpy(el, streams, len);
			env->ReleaseByteArrayElements(jstreams, el, 0);
			env->CallVoidMethod(impl->javaObject, setSelfStreamsMethod, jstreams);
		}


		if(didAttach){
			sharedJVM->DetachCurrentThread();
		}
	}

	void groupCallKeyReceived(VoIPController *cntrlr, unsigned char *key){
		impl_data_android_t *impl=(impl_data_android_t *) cntrlr->implData;
		if(!impl->javaObject)
			return;
		JNIEnv *env=NULL;
		bool didAttach=false;
		sharedJVM->GetEnv((void **) &env, JNI_VERSION_1_6);
		if(!env){
			sharedJVM->AttachCurrentThread(&env, NULL);
			didAttach=true;
		}

		if(groupCallKeyReceivedMethod){
			jbyteArray jkey=env->NewByteArray(256);
			jbyte *el=env->GetByteArrayElements(jkey, NULL);
			memcpy(el, key, 256);
			env->ReleaseByteArrayElements(jkey, el, 0);
			env->CallVoidMethod(impl->javaObject, groupCallKeyReceivedMethod, jkey);
		}

		if(didAttach){
			sharedJVM->DetachCurrentThread();
		}
	}

	void groupCallKeySent(VoIPController *cntrlr){
		impl_data_android_t *impl=(impl_data_android_t *) cntrlr->implData;
		if(!impl->javaObject)
			return;
		JNIEnv *env=NULL;
		bool didAttach=false;
		sharedJVM->GetEnv((void **) &env, JNI_VERSION_1_6);
		if(!env){
			sharedJVM->AttachCurrentThread(&env, NULL);
			didAttach=true;
		}

		if(groupCallKeySentMethod){
			env->CallVoidMethod(impl->javaObject, groupCallKeySentMethod);
		}

		if(didAttach){
			sharedJVM->DetachCurrentThread();
		}
	}

	void callUpgradeRequestReceived(VoIPController* cntrlr){
		impl_data_android_t *impl=(impl_data_android_t *) cntrlr->implData;
		if(!impl->javaObject)
			return;
		JNIEnv *env=NULL;
		bool didAttach=false;
		sharedJVM->GetEnv((void **) &env, JNI_VERSION_1_6);
		if(!env){
			sharedJVM->AttachCurrentThread(&env, NULL);
			didAttach=true;
		}

		if(groupCallKeySentMethod){
			env->CallVoidMethod(impl->javaObject, callUpgradeRequestReceivedMethod);
		}

		if(didAttach){
			sharedJVM->DetachCurrentThread();
		}
	}

	void updateParticipantAudioState(VoIPGroupController *cntrlr, int32_t userID, bool enabled){
		impl_data_android_t *impl=(impl_data_android_t *) cntrlr->implData;
		if(!impl->javaObject)
			return;
		JNIEnv *env=NULL;
		bool didAttach=false;
		sharedJVM->GetEnv((void **) &env, JNI_VERSION_1_6);
		if(!env){
			sharedJVM->AttachCurrentThread(&env, NULL);
			didAttach=true;
		}

		if(setParticipantAudioEnabledMethod){
			env->CallVoidMethod(impl->javaObject, setParticipantAudioEnabledMethod, userID, enabled);
		}


		if(didAttach){
			sharedJVM->DetachCurrentThread();
		}
	}
}

extern "C" JNIEXPORT jlong Java_org_telegram_messenger_voip_VoIPController_nativeInit(JNIEnv* env, jobject thiz, jint systemVersion){

	env->GetJavaVM(&sharedJVM);
	if(!AudioInputAndroid::jniClass){
		jclass cls=env->FindClass("org/telegram/messenger/voip/AudioRecordJNI");
		AudioInputAndroid::jniClass=(jclass) env->NewGlobalRef(cls);
		AudioInputAndroid::initMethod=env->GetMethodID(cls, "init", "(IIII)V");
		AudioInputAndroid::releaseMethod=env->GetMethodID(cls, "release", "()V");
		AudioInputAndroid::startMethod=env->GetMethodID(cls, "start", "()Z");
		AudioInputAndroid::stopMethod=env->GetMethodID(cls, "stop", "()V");

		cls=env->FindClass("org/telegram/messenger/voip/AudioTrackJNI");
		AudioOutputAndroid::jniClass=(jclass) env->NewGlobalRef(cls);
		AudioOutputAndroid::initMethod=env->GetMethodID(cls, "init", "(IIII)V");
		AudioOutputAndroid::releaseMethod=env->GetMethodID(cls, "release", "()V");
		AudioOutputAndroid::startMethod=env->GetMethodID(cls, "start", "()V");
		AudioOutputAndroid::stopMethod=env->GetMethodID(cls, "stop", "()V");
	}

	jclass thisClass=env->FindClass("org/telegram/messenger/voip/VoIPController");
	setStateMethod=env->GetMethodID(thisClass, "handleStateChange", "(I)V");
	setSignalBarsMethod=env->GetMethodID(thisClass, "handleSignalBarsChange", "(I)V");
	groupCallKeyReceivedMethod=env->GetMethodID(thisClass, "groupCallKeyReceived", "([B)V");
	groupCallKeySentMethod=env->GetMethodID(thisClass, "groupCallKeySent", "()V");
	callUpgradeRequestReceivedMethod=env->GetMethodID(thisClass, "callUpgradeRequestReceived", "()V");

	if(!jniUtilitiesClass)
		jniUtilitiesClass=(jclass) env->NewGlobalRef(env->FindClass("org/telegram/messenger/voip/JNIUtilities"));

	impl_data_android_t* impl=(impl_data_android_t*) malloc(sizeof(impl_data_android_t));
	impl->javaObject=env->NewGlobalRef(thiz);
	VoIPController* cntrlr=new VoIPController();
	cntrlr->implData=impl;
	VoIPController::Callbacks callbacks;
	callbacks.connectionStateChanged=updateConnectionState;
	callbacks.signalBarCountChanged=updateSignalBarCount;
	callbacks.groupCallKeyReceived=groupCallKeyReceived;
	callbacks.groupCallKeySent=groupCallKeySent;
	callbacks.upgradeToGroupCallRequested=callUpgradeRequestReceived;
	cntrlr->SetCallbacks(callbacks);
	return (jlong)(intptr_t)cntrlr;
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPController_nativeStart(JNIEnv* env, jobject thiz, jlong inst){
	((VoIPController*)(intptr_t)inst)->Start();
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPController_nativeConnect(JNIEnv* env, jobject thiz, jlong inst){
	((VoIPController*)(intptr_t)inst)->Connect();
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPController_nativeSetProxy(JNIEnv* env, jobject thiz, jlong inst, jstring _address, jint port, jstring _username, jstring _password){
	const char* address=env->GetStringUTFChars(_address, NULL);
	const char* username=_username ? env->GetStringUTFChars(_username, NULL) : NULL;
	const char* password=_password ? env->GetStringUTFChars(_password, NULL) : NULL;
	((VoIPController*)(intptr_t)inst)->SetProxy(PROXY_SOCKS5, address, (uint16_t)port, username ? username : "", password ? password : "");
	env->ReleaseStringUTFChars(_address, address);
	if(username)
		env->ReleaseStringUTFChars(_username, username);
	if(password)
		env->ReleaseStringUTFChars(_password, password);
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPController_nativeSetEncryptionKey(JNIEnv* env, jobject thiz, jlong inst, jbyteArray key, jboolean isOutgoing){
	jbyte* akey=env->GetByteArrayElements(key, NULL);
	((VoIPController*)(intptr_t)inst)->SetEncryptionKey((char *) akey, isOutgoing);
	env->ReleaseByteArrayElements(key, akey, JNI_ABORT);
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPController_nativeSetRemoteEndpoints(JNIEnv* env, jobject thiz, jlong inst, jobjectArray endpoints, jboolean allowP2p, jboolean tcp, jint connectionMaxLayer){
	size_t len=(size_t) env->GetArrayLength(endpoints);
//	voip_endpoint_t* eps=(voip_endpoint_t *) malloc(sizeof(voip_endpoint_t)*len);
	std::vector<Endpoint> eps;
	/*public String ip;
		public String ipv6;
		public int port;
		public byte[] peer_tag;*/
	jclass epClass=env->GetObjectClass(env->GetObjectArrayElement(endpoints, 0));
	jfieldID ipFld=env->GetFieldID(epClass, "ip", "Ljava/lang/String;");
	jfieldID ipv6Fld=env->GetFieldID(epClass, "ipv6", "Ljava/lang/String;");
	jfieldID portFld=env->GetFieldID(epClass, "port", "I");
	jfieldID peerTagFld=env->GetFieldID(epClass, "peer_tag", "[B");
	jfieldID idFld=env->GetFieldID(epClass, "id", "J");
	int i;
	for(i=0;i<len;i++){
		jobject endpoint=env->GetObjectArrayElement(endpoints, i);
		jstring ip=(jstring) env->GetObjectField(endpoint, ipFld);
		jstring ipv6=(jstring) env->GetObjectField(endpoint, ipv6Fld);
		jint port=env->GetIntField(endpoint, portFld);
		jlong id=env->GetLongField(endpoint, idFld);
		jbyteArray peerTag=(jbyteArray) env->GetObjectField(endpoint, peerTagFld);
		const char* ipChars=env->GetStringUTFChars(ip, NULL);
		std::string ipLiteral(ipChars);
		IPv4Address v4addr(ipLiteral);
		IPv6Address v6addr("::0");
		env->ReleaseStringUTFChars(ip, ipChars);
		if(ipv6 && env->GetStringLength(ipv6)){
			const char* ipv6Chars=env->GetStringUTFChars(ipv6, NULL);
			v6addr=IPv6Address(ipv6Chars);
			env->ReleaseStringUTFChars(ipv6, ipv6Chars);
		}
		unsigned char pTag[16];
		if(peerTag && env->GetArrayLength(peerTag)){
			jbyte* peerTagBytes=env->GetByteArrayElements(peerTag, NULL);
			memcpy(pTag, peerTagBytes, 16);
			env->ReleaseByteArrayElements(peerTag, peerTagBytes, JNI_ABORT);
		}
		eps.push_back(Endpoint((int64_t)id, (uint16_t)port, v4addr, v6addr, (char) (tcp ? Endpoint::TYPE_TCP_RELAY : Endpoint::TYPE_UDP_RELAY), pTag));
	}
	((VoIPController*)(intptr_t)inst)->SetRemoteEndpoints(eps, allowP2p, connectionMaxLayer);
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPController_nativeSetNativeBufferSize(JNIEnv* env, jclass thiz, jint size){
	AudioOutputOpenSLES::nativeBufferSize=(unsigned int) size;
	AudioInputOpenSLES::nativeBufferSize=(unsigned int) size;
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPController_nativeRelease(JNIEnv* env, jobject thiz, jlong inst){
	//env->DeleteGlobalRef(AudioInputAndroid::jniClass);

	VoIPController* ctlr=((VoIPController*)(intptr_t)inst);
	impl_data_android_t* impl=(impl_data_android_t*)ctlr->implData;
	ctlr->Stop();
	delete ctlr;
	env->DeleteGlobalRef(impl->javaObject);
	free(impl);
}


extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_AudioRecordJNI_nativeCallback(JNIEnv* env, jobject thiz, jobject buffer){
	if(!audioRecordInstanceFld)
		audioRecordInstanceFld=env->GetFieldID(env->GetObjectClass(thiz), "nativeInst", "J");

	jlong inst=env->GetLongField(thiz, audioRecordInstanceFld);
	AudioInputAndroid* in=(AudioInputAndroid*)(intptr_t)inst;
	in->HandleCallback(env, buffer);
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_AudioTrackJNI_nativeCallback(JNIEnv* env, jobject thiz, jbyteArray buffer){
	if(!audioTrackInstanceFld)
		audioTrackInstanceFld=env->GetFieldID(env->GetObjectClass(thiz), "nativeInst", "J");

	jlong inst=env->GetLongField(thiz, audioTrackInstanceFld);
	AudioOutputAndroid* in=(AudioOutputAndroid*)(intptr_t)inst;
	in->HandleCallback(env, buffer);
}

extern "C" JNIEXPORT jstring Java_org_telegram_messenger_voip_VoIPController_nativeGetDebugString(JNIEnv* env, jobject thiz, jlong inst){
	std::string str=((VoIPController*)(intptr_t)inst)->GetDebugString();
	return env->NewStringUTF(str.c_str());
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPController_nativeSetNetworkType(JNIEnv* env, jobject thiz, jlong inst, jint type){
	((VoIPController*)(intptr_t)inst)->SetNetworkType(type);
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPController_nativeSetMicMute(JNIEnv* env, jobject thiz, jlong inst, jboolean mute){
	((VoIPController*)(intptr_t)inst)->SetMicMute(mute);
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPController_nativeSetConfig(JNIEnv* env, jobject thiz, jlong inst, jdouble recvTimeout, jdouble initTimeout, jint dataSavingMode, jboolean enableAEC, jboolean enableNS, jboolean enableAGC, jstring logFilePath, jstring statsDumpPath){
	VoIPController::Config cfg;
	cfg.initTimeout=initTimeout;
	cfg.recvTimeout=recvTimeout;
	cfg.dataSaving=dataSavingMode;
	cfg.enableAEC=enableAEC;
	cfg.enableNS=enableNS;
	cfg.enableAGC=enableAGC;
	cfg.enableCallUpgrade=false;
	if(logFilePath){
		char* path=(char *) env->GetStringUTFChars(logFilePath, NULL);
		cfg.logFilePath=std::string(path);
		env->ReleaseStringUTFChars(logFilePath, path);
	}
	if(statsDumpPath){
		char* path=(char *) env->GetStringUTFChars(statsDumpPath, NULL);
		cfg.statsDumpFilePath=std::string(path);
		env->ReleaseStringUTFChars(logFilePath, path);
	}
	((VoIPController*)(intptr_t)inst)->SetConfig(cfg);
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPController_nativeDebugCtl(JNIEnv* env, jobject thiz, jlong inst, jint request, jint param){
	((VoIPController*)(intptr_t)inst)->DebugCtl(request, param);
}

extern "C" JNIEXPORT jstring Java_org_telegram_messenger_voip_VoIPController_nativeGetVersion(JNIEnv* env, jclass clasz){
	return env->NewStringUTF(VoIPController::GetVersion());
}

extern "C" JNIEXPORT jlong Java_org_telegram_messenger_voip_VoIPController_nativeGetPreferredRelayID(JNIEnv* env, jclass clasz, jlong inst){
	return ((VoIPController*)(intptr_t)inst)->GetPreferredRelayID();
}

extern "C" JNIEXPORT jint Java_org_telegram_messenger_voip_VoIPController_nativeGetLastError(JNIEnv* env, jclass clasz, jlong inst){
	return ((VoIPController*)(intptr_t)inst)->GetLastError();
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPController_nativeGetStats(JNIEnv* env, jclass clasz, jlong inst, jobject stats){
	VoIPController::TrafficStats _stats;
	((VoIPController*)(intptr_t)inst)->GetStats(&_stats);
	jclass cls=env->GetObjectClass(stats);
	env->SetLongField(stats, env->GetFieldID(cls, "bytesSentWifi", "J"), _stats.bytesSentWifi);
	env->SetLongField(stats, env->GetFieldID(cls, "bytesSentMobile", "J"), _stats.bytesSentMobile);
	env->SetLongField(stats, env->GetFieldID(cls, "bytesRecvdWifi", "J"), _stats.bytesRecvdWifi);
	env->SetLongField(stats, env->GetFieldID(cls, "bytesRecvdMobile", "J"), _stats.bytesRecvdMobile);
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPServerConfig_nativeSetConfig(JNIEnv* env, jclass clasz, jobjectArray keys, jobjectArray values){
	std::map<std::string, std::string> config;
	int len=env->GetArrayLength(keys);
	int i;
	for(i=0;i<len;i++){
		jstring jkey=(jstring)env->GetObjectArrayElement(keys, i);
		jstring jval=(jstring)env->GetObjectArrayElement(values, i);
		if(jkey==NULL|| jval==NULL)
			continue;
		const char* ckey=env->GetStringUTFChars(jkey, NULL);
		const char* cval=env->GetStringUTFChars(jval, NULL);
		std::string key(ckey);
		std::string val(cval);
		env->ReleaseStringUTFChars(jkey, ckey);
		env->ReleaseStringUTFChars(jval, cval);
		config[key]=val;
	}
	ServerConfig::GetSharedInstance()->Update(config);
}

extern "C" JNIEXPORT jstring Java_org_telegram_messenger_voip_VoIPController_nativeGetDebugLog(JNIEnv* env, jobject thiz, jlong inst){
	VoIPController* ctlr=((VoIPController*)(intptr_t)inst);
	std::string log=ctlr->GetDebugLog();
	return env->NewStringUTF(log.c_str());
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPController_nativeSetAudioOutputGainControlEnabled(JNIEnv* env, jclass clasz, jlong inst, jboolean enabled){
	((VoIPController*)(intptr_t)inst)->SetAudioOutputGainControlEnabled(enabled);
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPController_nativeSetEchoCancellationStrength(JNIEnv* env, jclass cls, jlong inst, jint strength){
	((VoIPController*)(intptr_t)inst)->SetEchoCancellationStrength(strength);
}

extern "C" JNIEXPORT jint Java_org_telegram_messenger_voip_Resampler_convert44to48(JNIEnv* env, jclass cls, jobject from, jobject to){
	return tgvoip::audio::Resampler::Convert44To48((int16_t *) env->GetDirectBufferAddress(from), (int16_t *) env->GetDirectBufferAddress(to), (size_t) (env->GetDirectBufferCapacity(from)/2), (size_t) (env->GetDirectBufferCapacity(to)/2));
}

extern "C" JNIEXPORT jint Java_org_telegram_messenger_voip_Resampler_convert48to44(JNIEnv* env, jclass cls, jobject from, jobject to){
	return tgvoip::audio::Resampler::Convert48To44((int16_t *) env->GetDirectBufferAddress(from), (int16_t *) env->GetDirectBufferAddress(to), (size_t) (env->GetDirectBufferCapacity(from)/2), (size_t) (env->GetDirectBufferCapacity(to)/2));
}

extern "C" JNIEXPORT jlong Java_org_telegram_messenger_voip_VoIPGroupController_nativeInit(JNIEnv* env, jobject thiz, jint timeDifference){
	env->GetJavaVM(&sharedJVM);
	if(!AudioInputAndroid::jniClass){
		jclass cls=env->FindClass("org/telegram/messenger/voip/AudioRecordJNI");
		AudioInputAndroid::jniClass=(jclass) env->NewGlobalRef(cls);
		AudioInputAndroid::initMethod=env->GetMethodID(cls, "init", "(IIII)V");
		AudioInputAndroid::releaseMethod=env->GetMethodID(cls, "release", "()V");
		AudioInputAndroid::startMethod=env->GetMethodID(cls, "start", "()Z");
		AudioInputAndroid::stopMethod=env->GetMethodID(cls, "stop", "()V");

		cls=env->FindClass("org/telegram/messenger/voip/AudioTrackJNI");
		AudioOutputAndroid::jniClass=(jclass) env->NewGlobalRef(cls);
		AudioOutputAndroid::initMethod=env->GetMethodID(cls, "init", "(IIII)V");
		AudioOutputAndroid::releaseMethod=env->GetMethodID(cls, "release", "()V");
		AudioOutputAndroid::startMethod=env->GetMethodID(cls, "start", "()V");
		AudioOutputAndroid::stopMethod=env->GetMethodID(cls, "stop", "()V");
	}

	setStateMethod=env->GetMethodID(env->GetObjectClass(thiz), "handleStateChange", "(I)V");
	setParticipantAudioEnabledMethod=env->GetMethodID(env->GetObjectClass(thiz), "setParticipantAudioEnabled", "(IZ)V");
	setSelfStreamsMethod=env->GetMethodID(env->GetObjectClass(thiz), "setSelfStreams", "([B)V");

	impl_data_android_t* impl=(impl_data_android_t*) malloc(sizeof(impl_data_android_t));
	impl->javaObject=env->NewGlobalRef(thiz);
	VoIPGroupController* cntrlr=new VoIPGroupController(timeDifference);
	cntrlr->implData=impl;

	VoIPGroupController::Callbacks callbacks;
	callbacks.connectionStateChanged=updateConnectionState;
	callbacks.updateStreams=updateGroupCallStreams;
	callbacks.participantAudioStateChanged=updateParticipantAudioState;
	callbacks.signalBarCountChanged=NULL;
	cntrlr->SetCallbacks(callbacks);

	return (jlong)(intptr_t)cntrlr;
}
/*
	private native void nativeSetGroupCallInfo(long inst, byte[] encryptionKey, byte[] reflectorGroupTag, byte[] reflectorSelfTag, byte[] reflectorSelfSecret, String reflectorAddress, String reflectorAddressV6, int reflectorPort);
	private native void addGroupCallParticipant(long inst, int userID, byte[] memberTagHash);
	private native void removeGroupCallParticipant(long inst, int userID);
 */

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPGroupController_nativeSetGroupCallInfo(JNIEnv* env, jclass cls, jlong inst, jbyteArray _encryptionKey, jbyteArray _reflectorGroupTag, jbyteArray _reflectorSelfTag, jbyteArray _reflectorSelfSecret, jbyteArray _reflectorSelfTagHash, jint selfUserID, jstring reflectorAddress, jstring reflectorAddressV6, jint reflectorPort){
	VoIPGroupController* ctlr=((VoIPGroupController*)(intptr_t)inst);
	jbyte* encryptionKey=env->GetByteArrayElements(_encryptionKey, NULL);
	jbyte* reflectorGroupTag=env->GetByteArrayElements(_reflectorGroupTag, NULL);
	jbyte* reflectorSelfTag=env->GetByteArrayElements(_reflectorSelfTag, NULL);
	jbyte* reflectorSelfSecret=env->GetByteArrayElements(_reflectorSelfSecret, NULL);
	jbyte* reflectorSelfTagHash=env->GetByteArrayElements(_reflectorSelfTagHash, NULL);


	const char* ipChars=env->GetStringUTFChars(reflectorAddress, NULL);
	std::string ipLiteral(ipChars);
	IPv4Address v4addr(ipLiteral);
	IPv6Address v6addr("::0");
	env->ReleaseStringUTFChars(reflectorAddress, ipChars);
	if(reflectorAddressV6 && env->GetStringLength(reflectorAddressV6)){
		const char* ipv6Chars=env->GetStringUTFChars(reflectorAddressV6, NULL);
		v6addr=IPv6Address(ipv6Chars);
		env->ReleaseStringUTFChars(reflectorAddressV6, ipv6Chars);
	}
	ctlr->SetGroupCallInfo((unsigned char *) encryptionKey, (unsigned char *) reflectorGroupTag, (unsigned char *) reflectorSelfTag, (unsigned char *) reflectorSelfSecret, (unsigned char*) reflectorSelfTagHash, selfUserID, v4addr, v6addr, (uint16_t)reflectorPort);

	env->ReleaseByteArrayElements(_encryptionKey, encryptionKey, JNI_ABORT);
	env->ReleaseByteArrayElements(_reflectorGroupTag, reflectorGroupTag, JNI_ABORT);
	env->ReleaseByteArrayElements(_reflectorSelfTag, reflectorSelfTag, JNI_ABORT);
	env->ReleaseByteArrayElements(_reflectorSelfSecret, reflectorSelfSecret, JNI_ABORT);
	env->ReleaseByteArrayElements(_reflectorSelfTagHash, reflectorSelfTagHash, JNI_ABORT);
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPGroupController_nativeAddGroupCallParticipant(JNIEnv* env, jclass cls, jlong inst, jint userID, jbyteArray _memberTagHash, jbyteArray _streams){
	VoIPGroupController* ctlr=((VoIPGroupController*)(intptr_t)inst);
	jbyte* memberTagHash=env->GetByteArrayElements(_memberTagHash, NULL);
	jbyte* streams=_streams ? env->GetByteArrayElements(_streams, NULL) : NULL;

	ctlr->AddGroupCallParticipant(userID, (unsigned char *) memberTagHash, (unsigned char *) streams, (size_t) env->GetArrayLength(_streams));

	env->ReleaseByteArrayElements(_memberTagHash, memberTagHash, JNI_ABORT);
	if(_streams)
		env->ReleaseByteArrayElements(_streams, streams, JNI_ABORT);

}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPGroupController_nativeRemoveGroupCallParticipant(JNIEnv* env, jclass cls, jlong inst, jint userID){
	VoIPGroupController* ctlr=((VoIPGroupController*)(intptr_t)inst);
	ctlr->RemoveGroupCallParticipant(userID);
}

extern "C" JNIEXPORT jfloat Java_org_telegram_messenger_voip_VoIPGroupController_nativeGetParticipantAudioLevel(JNIEnv* env, jclass cls, jlong inst, jint userID){
	return ((VoIPGroupController*)(intptr_t)inst)->GetParticipantAudioLevel(userID);
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPGroupController_nativeSetParticipantVolume(JNIEnv* env, jclass cls, jlong inst, jint userID, jfloat volume){
	((VoIPGroupController*)(intptr_t)inst)->SetParticipantVolume(userID, volume);
}

extern "C" JNIEXPORT jbyteArray Java_org_telegram_messenger_voip_VoIPGroupController_getInitialStreams(JNIEnv* env, jclass cls){
	unsigned char buf[1024];
	size_t len=VoIPGroupController::GetInitialStreams(buf, sizeof(buf));
	jbyteArray arr=env->NewByteArray(len);
	jbyte* arrElems=env->GetByteArrayElements(arr, NULL);
	memcpy(arrElems, buf, len);
	env->ReleaseByteArrayElements(arr, arrElems, 0);
	return arr;
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPGroupController_nativeSetParticipantStreams(JNIEnv* env, jclass cls, jlong inst, jint userID, jbyteArray _streams){
	jbyte* streams=env->GetByteArrayElements(_streams, NULL);

	((VoIPGroupController*)(intptr_t)inst)->SetParticipantStreams(userID, (unsigned char *) streams, (size_t) env->GetArrayLength(_streams));

	env->ReleaseByteArrayElements(_streams, streams, JNI_ABORT);
}

extern "C" JNIEXPORT jint Java_org_telegram_messenger_voip_VoIPController_nativeGetPeerCapabilities(JNIEnv* env, jclass cls, jlong inst){
	return ((VoIPController*)(intptr_t)inst)->GetPeerCapabilities();
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPController_nativeSendGroupCallKey(JNIEnv* env, jclass cls, jlong inst, jbyteArray _key){
	jbyte* key=env->GetByteArrayElements(_key, NULL);
	((VoIPController*)(intptr_t)inst)->SendGroupCallKey((unsigned char *) key);
	env->ReleaseByteArrayElements(_key, key, JNI_ABORT);
}

extern "C" JNIEXPORT void Java_org_telegram_messenger_voip_VoIPController_nativeRequestCallUpgrade(JNIEnv* env, jclass cls, jlong inst){
	((VoIPController*)(intptr_t)inst)->RequestCallUpgrade();
}