我是团结的新手。
我正在尝试将来自麦克风的音频和实时视频从一个应用程序流传输到另一个应用程序，目前，我有2个应用程序。应用1是服务器/发送方，而应用2是客户端/接收方。应用内1我已成功将视频字节发送到客户端。在客户端，我也收到了所有字节。我正在使用套接字和TCP。
现在的问题是我不知道如何将麦克风的音频和视频从服务器发送到客户端。
以下代码非常适合从服务器端进行实时视频流传输
using UnityEngine;
using System.Collections;
using System.IO;
using UnityEngine.UI;
using System;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.Collections.Generic;
public class Connecting : MonoBehaviour
{
WebCamTexture webCam;
public RawImage myImage;
public bool enableLog = false;
Texture2D currentTexture;
private TcpListener listner;
private const int port = 8010;
private bool stop = false;
private List<TcpClient> clients = new List<TcpClient>();
//This must be the-same with SEND_COUNT on the client
const int SEND_RECEIVE_COUNT = 15;
private void Start()
{
Application.runInBackground = true;
//Start WebCam coroutine
StartCoroutine(initAndWaitForWebCamTexture());
}
//Converts the data size to byte array and put result to the fullBytes array
void byteLengthToFrameByteArray(int byteLength, byte[] fullBytes)
{
//Clear old data
Array.Clear(fullBytes, 0, fullBytes.Length);
//Convert int to bytes
byte[] bytesToSendCount = BitConverter.GetBytes(byteLength);
//Copy result to fullBytes
bytesToSendCount.CopyTo(fullBytes, 0);
}
//Converts the byte array to the data size and returns the result
int frameByteArrayToByteLength(byte[] frameBytesLength)
{
int byteLength = BitConverter.ToInt32(frameBytesLength, 0);
return byteLength;
}
IEnumerator initAndWaitForWebCamTexture()
{
// Open the Camera on the desired device, in my case IPAD pro
webCam = new WebCamTexture();
// Get all devices , front and back camera
webCam.deviceName = WebCamTexture.devices[WebCamTexture.devices.Length - 1].name;
// request the lowest width and heigh possible
webCam.requestedHeight = 10;
webCam.requestedWidth = 10;
myImage.texture = webCam;
webCam.Play();
currentTexture = new Texture2D(webCam.width, webCam.height);
// Connect to the server
listner = new TcpListener(IPAddress.Any, port);
listner.Start();
while (webCam.width < 100)
{
yield return null;
}
//Start sending coroutine
StartCoroutine(senderCOR());
}
WaitForEndOfFrame endOfFrame = new WaitForEndOfFrame();
IEnumerator senderCOR()
{
bool isConnected = false;
TcpClient client = null;
NetworkStream stream = null;
// Wait for client to connect in another Thread
Loom.RunAsync(() =>
{
while (!stop)
{
// Wait for client connection
client = listner.AcceptTcpClient();
// We are connected
clients.Add(client);
isConnected = true;
stream = client.GetStream();
}
});
//Wait until client has connected
while (!isConnected)
{
yield return null;
}
LOG("Connected!");
bool readyToGetFrame = true;
byte[] frameBytesLength = new byte[SEND_RECEIVE_COUNT];
while (!stop)
{
//Wait for End of frame
yield return endOfFrame;
currentTexture.SetPixels(webCam.GetPixels());
byte[] pngBytes = currentTexture.EncodeToPNG();
//Fill total byte length to send. Result is stored in frameBytesLength
byteLengthToFrameByteArray(pngBytes.Length, frameBytesLength);
//Set readyToGetFrame false
readyToGetFrame = false;
Loom.RunAsync(() =>
{
//Send total byte count first
stream.Write(frameBytesLength, 0, frameBytesLength.Length);
LOG("Sent Image byte Length: " + frameBytesLength.Length);
//Send the image bytes
stream.Write(pngBytes, 0, pngBytes.Length);
LOG("Sending Image byte array data : " + pngBytes.Length);
//Sent. Set readyToGetFrame true
readyToGetFrame = true;
});
//Wait until we are ready to get new frame(Until we are done sending data)
while (!readyToGetFrame)
{
LOG("Waiting To get new frame");
yield return null;
}
}
}
void LOG(string messsage)
{
if (enableLog)
Debug.Log(messsage);
}
private void Update()
{
myImage.texture = webCam;
}
// stop everything
private void OnApplicationQuit()
{
if (webCam != null && webCam.isPlaying)
{
webCam.Stop();
stop = true;
}
if (listner != null)
{
listner.Stop();
}
foreach (TcpClient c in clients)
c.Close();
}
}
以下代码非常适合从客户端进行实时视频流传输
using UnityEngine;
using System.Collections;
using UnityEngine.UI;
using System.Net.Sockets;
using System.Net;
using System.IO;
using System;
public class reciver : MonoBehaviour
{
public RawImage image;
public bool enableLog = false;
const int port = 8010;
public string IP = "192.168.1.165";
TcpClient client;
Texture2D tex;
private bool stop = false;
//This must be the-same with SEND_COUNT on the server
const int SEND_RECEIVE_COUNT = 15;
// Use this for initialization
void Start()
{
Application.runInBackground = true;
tex = new Texture2D(0, 0);
client = new TcpClient();
//Connect to server from another Thread
Loom.RunAsync(() =>
{
LOGWARNING("Connecting to server...");
// if on desktop
client.Connect(IPAddress.Loopback, port);
// if using the IPAD
//client.Connect(IPAddress.Parse(IP), port);
LOGWARNING("Connected!");
imageReceiver();
});
}
void imageReceiver()
{
//While loop in another Thread is fine so we don't block main Unity Thread
Loom.RunAsync(() =>
{
while (!stop)
{
//Read Image Count
int imageSize = readImageByteSize(SEND_RECEIVE_COUNT);
LOGWARNING("Received Image byte Length: " + imageSize);
//Read Image Bytes and Display it
readFrameByteArray(imageSize);
}
});
}
//Converts the data size to byte array and put result to the fullBytes array
void byteLengthToFrameByteArray(int byteLength, byte[] fullBytes)
{
//Clear old data
Array.Clear(fullBytes, 0, fullBytes.Length);
//Convert int to bytes
byte[] bytesToSendCount = BitConverter.GetBytes(byteLength);
//Copy result to fullBytes
bytesToSendCount.CopyTo(fullBytes, 0);
}
//Converts the byte array to the data size and returns the result
int frameByteArrayToByteLength(byte[] frameBytesLength)
{
int byteLength = BitConverter.ToInt32(frameBytesLength, 0);
return byteLength;
}
/////////////////////////////////////////////////////Read Image SIZE from Server///////////////////////////////////////////////////
private int readImageByteSize(int size)
{
bool disconnected = false;
NetworkStream serverStream = client.GetStream();
byte[] imageBytesCount = new byte[size];
var total = 0;
do
{
var read = serverStream.Read(imageBytesCount, total, size - total);
//Debug.LogFormat("Client recieved {0} bytes", total);
if (read == 0)
{
disconnected = true;
break;
}
total += read;
} while (total != size);
int byteLength;
if (disconnected)
{
byteLength = -1;
}
else
{
byteLength = frameByteArrayToByteLength(imageBytesCount);
}
return byteLength;
}
/////////////////////////////////////////////////////Read Image Data Byte Array from Server///////////////////////////////////////////////////
private void readFrameByteArray(int size)
{
bool disconnected = false;
NetworkStream serverStream = client.GetStream();
byte[] imageBytes = new byte[size];
var total = 0;
do
{
var read = serverStream.Read(imageBytes, total, size - total);
//Debug.LogFormat("Client recieved {0} bytes", total);
if (read == 0)
{
disconnected = true;
break;
}
total += read;
} while (total != size);
bool readyToReadAgain = false;
//Display Image
if (!disconnected)
{
//Display Image on the main Thread
Loom.QueueOnMainThread(() =>
{
displayReceivedImage(imageBytes);
readyToReadAgain = true;
});
}
//Wait until old Image is displayed
while (!readyToReadAgain)
{
System.Threading.Thread.Sleep(1);
}
}
void displayReceivedImage(byte[] receivedImageBytes)
{
tex.LoadImage(receivedImageBytes);
image.texture = tex;
}
// Update is called once per frame
void Update()
{
}
void LOG(string messsage)
{
if (enableLog)
Debug.Log(messsage);
}
void LOGWARNING(string messsage)
{
if (enableLog)
Debug.LogWarning(messsage);
}
void OnApplicationQuit()
{
LOGWARNING("OnApplicationQuit");
stop = true;
if (client != null)
{
client.Close();
}
}
}
下面是我到目前为止的视频成就，下面的代码是通过麦克风成功播放音频
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class Audio1 : MonoBehaviour
{
const int FREQUENCY = 44100;
AudioClip mic;
int lastPos, pos;
// Use this for initialization
void Start()
{
mic = Microphone.Start(null, true, 10, FREQUENCY);
AudioSource audio = GetComponent<AudioSource>();
audio.clip = AudioClip.Create("test", 10 * FREQUENCY, mic.channels, FREQUENCY, false);
audio.loop = true;
}
// Update is called once per frame
void Update()
{
if ((pos = Microphone.GetPosition(null)) > 0)
{
if (lastPos > pos) lastPos = 0;
if (pos - lastPos > 0)
{
// Allocate the space for the sample.
float[] sample = new float[(pos - lastPos) * mic.channels];
// Get the data from microphone.
mic.GetData(sample, lastPos);
// Put the data in the audio source.
AudioSource audio = GetComponent<AudioSource>();
audio.clip.SetData(sample, lastPos);
if (!audio.isPlaying) audio.Play();
lastPos = pos;
}
}
}
void OnDestroy()
{
Microphone.End(null);
}
}
答案 0 :(得分：0)
过去几周我一直在忙于音频流传输，我想在这里分享我的解决方案。
我有一个项目，要求捕获游戏中的音频并通过TCP流传输到客户端。麦克风应该也可以在游戏中捕获。
步骤1。使用“ OnAudioFilterRead（）”捕获游戏中的音频数据。它会返回float []。
步骤2。缓冲并转换为byte []，以便通过TCP发送。
步骤3。在客户端计算机上的“ OnAudioFilterRead（）”上分配每组音频数据。它也需要一个空的音频源组件。
但是，我遇到了一些与采样率和发言人人数有关的挑战。更改采样率或更改扬声器编号时，音频数据大小将完全不同。不幸的是，我的服务器和客户端的采样率和扬声器号完全不同。我正遭受这个挑战。
我在下面的论坛上找到了Okey解决方案，该解决方案确实满足我的需求。 https://forum.unity.com/threads/670270/
当机器之间的采样率不同时，这不是一个完美的解决方案，但这是我的项目中有效的解决方案。
答案 1 :(得分：0)
就我而言，我使用FM Exhibition Tool Pack在AR / VR耳机上向多个客户端进行音频和视频流传输。它确实捕获了场景摄像机视图和场景音频以供游戏视图流传输。