386 lines
12 KiB
C++
386 lines
12 KiB
C++
/*
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* Original work: Copyright (c) 2014, Oculus VR, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* RakNet License.txt file in the licenses directory of this source tree. An additional grant
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* of patent rights can be found in the RakNet Patents.txt file in the same directory.
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*
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*
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* Modified work: Copyright (c) 2016-2020, SLikeSoft UG (haftungsbeschränkt)
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*
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* This source code was modified by SLikeSoft. Modifications are licensed under the MIT-style
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* license found in the license.txt file in the root directory of this source tree.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <memory.h>
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#include <limits> // used for std::numeric_limits
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#include "portaudio.h"
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#include "slikenet/Kbhit.h"
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#include "slikenet/peerinterface.h"
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#include "slikenet/MessageIdentifiers.h"
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#include "RakVoice.h"
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#include "slikenet/statistics.h"
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#include "slikenet/NatPunchthroughClient.h"
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#include "slikenet/BitStream.h"
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#include "slikenet/Getche.h"
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#include "slikenet/Gets.h"
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#include "slikenet/linux_adapter.h"
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#include "slikenet/osx_adapter.h"
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/// To test sending to myself. Also uncomment in RakVoice.cpp
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//#define _TEST_LOOPBACK
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// RakVoice only works with 16-bits sound data
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#define PA_SAMPLE_TYPE paInt16
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typedef short SAMPLE;
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// Reads and writes per second of the sound data
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// Speex only supports these 3 values
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#define SAMPLE_RATE (8000)
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//#define SAMPLE_RATE (16000)
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//#define SAMPLE_RATE (32000)
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SLNet::RakPeerInterface *rakPeer;
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// I think one buffer has to be full (of samples) before you hear the sound.
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// So higher frames per buffer means that there will be a larger latency before you hear the sound
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// However, it would lock and unlock the buffer more often, hindering performance.
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#define FRAMES_PER_BUFFER (2048 / (32000 / SAMPLE_RATE))
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bool mute;
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SLNet::RakVoice rakVoice;
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// inputBuffer and outputBuffer is an array of SAMPLE of count framesPerBuffer
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// A sample is one unit of sound.
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// The sample rate is the number of sound samples taken per second
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// I think one frame is a set of samples equal to the number of channels. I'm not sure though or how that sample is arranged.
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static int PACallback( void *inputBuffer, void *outputBuffer,
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unsigned long framesPerBuffer,
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PaTimestamp outTime, void *userData )
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{
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// unused parameters
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(void)framesPerBuffer;
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(void)outTime;
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(void)userData;
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if (inputBuffer && !mute)
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{
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// TODO - if the input data is mostly silence, don't send and save the bandwidth.
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#ifndef _TEST_LOOPBACK
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unsigned i;
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for (i=0; i < rakPeer->GetMaximumNumberOfPeers(); i++)
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{
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rakVoice.SendFrame(rakPeer->GetGUIDFromIndex(i), inputBuffer);
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}
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#else
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rakVoice.SendFrame(SLNet::UNASSIGNED_SYSTEM_ADDRESS, inputBuffer);
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#endif
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}
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rakVoice.ReceiveFrame(outputBuffer);
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return 0;
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}
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#define NAT_PUNCHTHROUGH_FACILITATOR_PORT 61111
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int main(void)
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{
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PortAudioStream *stream;
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PaError err;
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mute=false;
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bool quit;
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int ch;
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printf("A sample on how to use RakVoice. You need a microphone for this sample.\n");
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printf("RakVoice relies on Speex for voice encoding and decoding.\n");
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printf("See DependentExtensions/RakVoice/speex-1.1.12 for speex projects.\n");
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printf("For windows, I had to define HAVE_CONFIG_H, include win32/config.h,\n");
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printf("and include the files under libspeex, except those that start with test.\n");
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printf("PortAudio is also included and is used to read and write audio data. You\n");
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printf("can substitute whatever you want if you do not want to use portaudio.\n");
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printf("Difficulty: Advanced\n\n");
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// Since voice is peer to peer, we give the option to use the nat punchthrough client if desired.
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SLNet::NatPunchthroughClient natPunchthroughClient;
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char port[256];
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rakPeer = SLNet::RakPeerInterface::GetInstance();
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printf("Enter local port (enter for default): ");
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Gets(port, sizeof(port));
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if (port[0]==0)
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strcpy_s(port, "60000");
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const int intLocalPort = atoi(port);
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if ((intLocalPort < 0) || (intLocalPort > std::numeric_limits<unsigned short>::max())) {
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printf("Specified local port %d is outside valid bounds [0, %u]", intLocalPort, std::numeric_limits<unsigned short>::max());
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return 1;
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}
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SLNet::SocketDescriptor socketDescriptor(static_cast<unsigned short>(intLocalPort), 0);
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rakPeer->Startup(4, &socketDescriptor, 1);
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rakPeer->SetMaximumIncomingConnections(4);
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rakPeer->AttachPlugin(&rakVoice);
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rakPeer->AttachPlugin(&natPunchthroughClient);
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rakVoice.Init(SAMPLE_RATE, FRAMES_PER_BUFFER*sizeof(SAMPLE));
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err = Pa_Initialize();
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if( err != paNoError ) goto error;
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err = Pa_OpenStream(
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&stream,
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Pa_GetDefaultInputDeviceID(),
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1, // Num channels, whatever that means
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PA_SAMPLE_TYPE,
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nullptr,
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Pa_GetDefaultOutputDeviceID(),
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1, // Num channels
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PA_SAMPLE_TYPE,
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nullptr,
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SAMPLE_RATE,
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FRAMES_PER_BUFFER, /* frames per buffer */
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0, /* number of buffers, if zero then use default minimum */
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0, /* paDitherOff, // flags */
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PACallback,
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0 );
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if( err != paNoError ) goto error;
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err = Pa_StartStream( stream );
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if( err != paNoError ) goto error;
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printf("Support NAT punchthrough? (y/n)? ");
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bool useNatPunchthrough;
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useNatPunchthrough=(_getche()=='y');
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printf("\n");
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char facilitatorIP[256];
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{//Linux fix. Won't compile without it. Because of the goto error above, the scope is ambigious. Make it a block to define that it will not be used after the jump.
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//Doesn't change current logic
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SLNet::SystemAddress facilitator;
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if (useNatPunchthrough)
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{
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printf("My GUID is %s\n", rakPeer->GetGuidFromSystemAddress(SLNet::UNASSIGNED_SYSTEM_ADDRESS).ToString());
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printf("Enter IP of facilitator (enter for default): ");
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Gets(facilitatorIP,sizeof(facilitatorIP));
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if (facilitatorIP[0]==0)
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strcpy_s(facilitatorIP, "natpunch.slikesoft.com");
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facilitator.FromString(facilitatorIP);
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facilitator.SetPortHostOrder(NAT_PUNCHTHROUGH_FACILITATOR_PORT);
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rakPeer->Connect(facilitatorIP, NAT_PUNCHTHROUGH_FACILITATOR_PORT, 0, 0);
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printf("Connecting to facilitator...\n");
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}
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else
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{
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printf("Not supporting NAT punchthrough.\n");
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}
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SLNet::Packet *p;
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quit=false;
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if (useNatPunchthrough==false)
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printf("(Q)uit. (C)onnect. (D)isconnect. C(l)ose voice channels. (M)ute. ' ' for stats.\n");
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while (!quit)
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{
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if (_kbhit())
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{
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ch=_getch();
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if (ch=='y')
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{
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quit=true;
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}
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else if (ch=='c')
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{
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if (useNatPunchthrough)
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{
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SLNet::RakNetGUID destination;
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printf("Enter GUID of destination: ");
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char guidStr[256];
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for(;;)
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{
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Gets(guidStr,sizeof(guidStr));
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if (!destination.FromString(guidStr))
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printf("Invalid GUID format. Try again.\nEnter GUID of destination: ");
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else
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break;
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}
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printf("Starting NAT punch. Please wait...\n");
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natPunchthroughClient.OpenNAT(destination,facilitator);
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}
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else
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{
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char ip[256];
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printf("Enter IP of remote system: ");
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Gets(ip, sizeof(ip));
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if (ip[0]==0)
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strcpy_s(ip, "127.0.0.1");
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printf("Enter port of remote system: ");
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Gets(port, sizeof(port));
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if (port[0]==0)
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strcpy_s(port, "60000");
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const int intRemotePort = atoi(port);
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if ((intRemotePort < 0) || (intRemotePort > std::numeric_limits<unsigned short>::max())) {
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printf("Specified remote port %d is outside valid bounds [0, %u]", intRemotePort, std::numeric_limits<unsigned short>::max());
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return 2;
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}
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rakPeer->Connect(ip, static_cast<unsigned short>(intRemotePort), 0,0);
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}
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}
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else if (ch=='m')
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{
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mute=!mute;
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if (mute)
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printf("Now muted.\n");
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else
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printf("No longer muted.\n");
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}
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else if (ch=='d')
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{
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rakPeer->Shutdown(100,0);
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}
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else if (ch=='l')
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{
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rakVoice.CloseAllChannels();
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}
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else if (ch==' ')
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{
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char message[2048];
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SLNet::RakNetStatistics *rss=rakPeer->GetStatistics(rakPeer->GetSystemAddressFromIndex(0));
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StatisticsToString(rss, message, 2048, 2);
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printf("%s", message);
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}
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else if (ch=='q')
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quit=true;
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ch=0;
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}
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p=rakPeer->Receive();
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while (p)
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{
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if (p->data[0]==ID_CONNECTION_REQUEST_ACCEPTED)
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{
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if (p->systemAddress==facilitator)
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{
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printf("Connection to facilitator completed\n");
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printf("(Q)uit. (C)onnect. (D)isconnect. (M)ute. ' ' for stats.\n");
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}
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else
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{
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printf("ID_CONNECTION_REQUEST_ACCEPTED from %s\n", p->systemAddress.ToString());
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rakVoice.RequestVoiceChannel(p->guid);
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}
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}
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else if (p->data[0]==ID_CONNECTION_ATTEMPT_FAILED)
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{
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if (p->systemAddress==facilitator)
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{
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printf("Connection to facilitator failed. Using direct connections\n");
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useNatPunchthrough=false;
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printf("(Q)uit. (C)onnect. (D)isconnect. (M)ute. ' ' for stats.\n");
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}
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else
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{
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printf("ID_CONNECTION_ATTEMPT_FAILED\n");
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}
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}
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else if (p->data[0]==ID_RAKVOICE_OPEN_CHANNEL_REQUEST || p->data[0]==ID_RAKVOICE_OPEN_CHANNEL_REPLY)
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{
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printf("Got new channel from %s\n", p->systemAddress.ToString());
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}
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else if (p->data[0]==ID_NAT_TARGET_NOT_CONNECTED)
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{
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SLNet::RakNetGUID g;
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SLNet::BitStream b(p->data, p->length, false);
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b.IgnoreBits(8); // Ignore the ID_...
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b.Read(g);
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printf("ID_NAT_TARGET_NOT_CONNECTED for %s\n", g.ToString());
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}
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else if (p->data[0]==ID_NAT_TARGET_UNRESPONSIVE)
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{
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SLNet::RakNetGUID g;
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SLNet::BitStream b(p->data, p->length, false);
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b.IgnoreBits(8); // Ignore the ID_...
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b.Read(g);
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printf("ID_NAT_TARGET_UNRESPONSIVE for %s\n", g.ToString());
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}
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else if (p->data[0]==ID_NAT_CONNECTION_TO_TARGET_LOST)
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{
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SLNet::RakNetGUID g;
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SLNet::BitStream b(p->data, p->length, false);
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b.IgnoreBits(8); // Ignore the ID_...
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b.Read(g);
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printf("ID_NAT_CONNECTION_TO_TARGET_LOST for %s\n", g.ToString());
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}
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else if (p->data[0]==ID_NAT_ALREADY_IN_PROGRESS)
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{
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SLNet::RakNetGUID g;
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SLNet::BitStream b(p->data, p->length, false);
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b.IgnoreBits(8); // Ignore the ID_...
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b.Read(g);
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printf("ID_NAT_ALREADY_IN_PROGRESS for %s\n", g.ToString());
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}
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else if (p->data[0]==ID_NAT_PUNCHTHROUGH_FAILED)
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{
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printf("ID_NAT_PUNCHTHROUGH_FAILED for %s\n", p->guid.ToString());
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}
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else if (p->data[0]==ID_NAT_PUNCHTHROUGH_SUCCEEDED)
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{
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printf("ID_NAT_PUNCHTHROUGH_SUCCEEDED for %s. Connecting...\n", p->guid.ToString());
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rakPeer->Connect(p->systemAddress.ToString(false),p->systemAddress.GetPort(),0,0);
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}
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else if (p->data[0]==ID_ALREADY_CONNECTED)
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{
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printf("ID_ALREADY_CONNECTED\n");
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}
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else if (p->data[0]==ID_RAKVOICE_CLOSE_CHANNEL)
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{
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printf("ID_RAKVOICE_CLOSE_CHANNEL\n");
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}
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else if (p->data[0]==ID_DISCONNECTION_NOTIFICATION)
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{
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printf("ID_DISCONNECTION_NOTIFICATION\n");
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}
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else if (p->data[0]==ID_NEW_INCOMING_CONNECTION)
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{
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printf("ID_NEW_INCOMING_CONNECTION\n");
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}
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else
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{
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printf("Unknown packet ID %i\n", p->data[0]);
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}
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rakPeer->DeallocatePacket(p);
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p=rakPeer->Receive();
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}
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Pa_Sleep( 30 );
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}
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}
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err = Pa_CloseStream( stream );
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if( err != paNoError ) goto error;
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Pa_Terminate();
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rakPeer->Shutdown(300);
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SLNet::RakPeerInterface::DestroyInstance(rakPeer);
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return 0;
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error:
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Pa_Terminate();
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fprintf( stderr, "An error occured while using the portaudio stream\n" );
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fprintf( stderr, "Error number: %d\n", err );
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fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) );
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return -1;
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}
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