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C# ONVIF如何處理音頻數(shù)據(jù)

c#
小樊
93
2024-07-08 21:27:31
欄目: 編程語言

在C#中處理ONVIF音頻數(shù)據(jù),您可以使用ONVIF的Media服務(wù)來獲取音頻流數(shù)據(jù)。首先,您需要使用ONVIF的設(shè)備管理服務(wù)來發(fā)現(xiàn)并連接到網(wǎng)絡(luò)攝像機(jī)。然后,使用Media服務(wù)來獲取音頻流數(shù)據(jù)。以下是一個(gè)簡單的示例代碼,演示如何處理ONVIF音頻數(shù)據(jù):

using System;
using System.ServiceModel;
using System.ServiceModel.Channels;
using System.ServiceModel.Description;
using System.Xml;
using System.Net;

class Program
{
    static void Main(string[] args)
    {
        // 通過ONVIF設(shè)備管理服務(wù)查找設(shè)備
        var discoveryClient = new DiscoveryClient(new UdpDiscoveryEndpoint());
        var findCriteria = new FindCriteria(typeof(DevmgmtDevice));
        var findResult = discoveryClient.Find(findCriteria);

        // 連接到設(shè)備
        var deviceAddress = findResult.Endpoints[0].Address;
        var deviceServiceAddress = new Uri($"http://{deviceAddress}/onvif/device_service");
        var deviceServiceClient = new DeviceServiceClient("DeviceBinding", new EndpointAddress(deviceServiceAddress));
        var deviceInfo = deviceServiceClient.GetDeviceInformation();

        // 獲取Media服務(wù)地址
        var mediaServiceAddress = deviceServiceClient.GetServices(true).FirstOrDefault(s => s.Namespace == "http://www.onvif.org/ver10/media/wsdl")?.XAddr;
        var mediaServiceClient = new MediaClient("Media", new EndpointAddress(mediaServiceAddress));

        // 獲取音頻流URI
        var profileToken = mediaServiceClient.GetProfiles().FirstOrDefault()?.token;
        var streamUri = mediaServiceClient.GetStreamUri(profileToken, StreamSetup.CreateRtspStream("RTP-Unicast", null));

        // 處理音頻數(shù)據(jù)
        var rtspClient = new RtspClient(streamUri.Uri);
        rtspClient.DataReceived += (sender, e) =>
        {
            byte[] audioData = e.Data;
            // 處理音頻數(shù)據(jù)
        };

        rtspClient.Start();
        Console.ReadLine();
        rtspClient.Stop();
    }
}

在上面的示例中,我們首先通過ONVIF設(shè)備管理服務(wù)發(fā)現(xiàn)設(shè)備并連接到設(shè)備。然后獲取Media服務(wù)地址并獲取音頻流URI。最后,我們使用一個(gè)RtspClient來接收音頻數(shù)據(jù)并進(jìn)行處理。您可以根據(jù)您的實(shí)際需求自定義處理音頻數(shù)據(jù)的邏輯。

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