wpf实现FFmpeg获取摄像头实时画面

1. gitee地址如下

源码地址

2. 如何获取摄像头验证码和ip

首先获取摄像头底部的验证码及ip(测试使用的是萤石摄像头，需要PC下载萤石客户端查看ip)

3. 未连接之前可以通过VLC进行测试

在左上角（媒体）--》（流）--》（网络）--》输入rtsp链接

如下就是rtsp链接

rtsp://admin:[email protected]:554/h264/ch1/main/av_stream

测试还可以使用该rtsp链接

rtmp://mobliestream.c3tv.com:554/live/goodtv.sdp

4. 项目结构

5. 源码

（1）MainWindow.xaml.cs

using FFmpeg.AutoGen;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Interop;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace FFmpegPlayRtspDemo
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            player1.RtspUrl = "rtsp://admin:[email protected]:554/h264/ch1/main/av_stream";
           //player1.RtspUrl = "rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mp4";
        }
    }
}

(2)MainWindow.xaml

<Window x:Class="FFmpegPlayRtspDemo.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:FFmpegPlayRtspDemo"
        mc:Ignorable="d"
        Title="FFmpeg播放" Height="480" Width="800" WindowStartupLocation="CenterScreen" ResizeMode="NoResize">
    <Grid>
        <local:FFmpegPlayer x:Name="player1"/>

        
    </Grid>
</Window>

(3)FFmpegPlayer.xaml

<UserControl x:Class="FFmpegPlayRtspDemo.FFmpegPlayer"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:FFmpegPlayRtspDemo"
             mc:Ignorable="d" 
             d:DesignHeight="450" d:DesignWidth="800">
    <Grid>
        <Image Name="videodest01" Tag="01" Margin="386,210,0,-3"></Image>
        <Image Name="videodest02" Tag="02" Margin="0,211,427,3"></Image>
        <Image Name="videodest03" Tag="03" Margin="385,4,0,234"></Image>
        <Image Name="videodest04" Tag="04" Margin="0,0,428,236"></Image>
    </Grid>
</UserControl>

(4)FfmpegPlayer.xaml.cs

using FFmpeg.AutoGen;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Interop;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace FFmpegPlayRtspDemo
{
    /// <summary>
    /// FFmpegPlayer.xaml 的交互逻辑
    /// </summary>
    public partial class FFmpegPlayer : UserControl
    {
        private string _RtspUrl;

        public string RtspUrl
        {
            get { return _RtspUrl; }
            set
            {
                _RtspUrl = value;
                Play();
            }
        }

        public bool CanRun;
        Thread thPlayer;

        public FFmpegPlayer()
        {
            InitializeComponent();
        }

        private void Play()
        {
            if (string.IsNullOrEmpty(RtspUrl))
                return;
            thPlayer = new Thread(DeCoding);
            thPlayer.SetApartmentState(ApartmentState.MTA);//设置单线程
            thPlayer.IsBackground = true;
            thPlayer.Start();
        }

        object _bitMapLocker = new object();
        private unsafe void DeCoding()
        {
            try
            {
                //if (ClassHelp.Instance.SysSettingModel.Camera1 != 0)
                //{
                ClassHelp.Instance.FFmpegHelp = new FFmpegHelp();
                ClassHelp.Instance.FFmpegHelp.Register();
                //}
                string strResult = "";
                lock (_bitMapLocker)
                {
                    // 更新图片显示
                    FFmpegHelp.ShowBitmap show = (bmp) =>
                    {
                        Dispatcher.BeginInvoke(new Action(() =>
                        {
                            Bitmap oldBitMap;
                            Bitmap autobitmap;

                            if (bmp != null)
                            {
                                oldBitMap = bmp;
                                autobitmap = bmp;
                                ImageSource videSource = ImageSourceForBitmap(oldBitMap);
                                this.videodest01.Source = videSource;
                                this.videodest02.Source = videSource;
                                this.videodest03.Source = videSource;
                                this.videodest04.Source = videSource;
                                ClassHelp.Instance.IsAlert = false;
                            }
                            else
                            {
                                ClassHelp.Instance.IsAlert = true;
                                ClassHelp.Instance.IsNetwork = true;
                            }
                        }));
                    };
                    ClassHelp.Instance.FFmpegHelp.Start(show, RtspUrl, out strResult);
                    //Start(show, RtspUrl, out strResult);
                    if (!string.IsNullOrEmpty(strResult) && ClassHelp.Instance.IsAlert == true)
                    {
                        ClassHelp.Instance.IsAlert = false;
                        ClassHelp.Instance.IsNetwork = false;
                        this.Dispatcher.Invoke(new Action(() =>
                        {
                            MessageBox.Show($"错误信息:{strResult}");
                        }));
                    }
                }
            }
            finally
            {
                thPlayer.DisableComObjectEagerCleanup();
                thPlayer = null;
                thPlayer = new Thread(DeCoding);
                thPlayer.IsBackground = true;
                thPlayer.Start();
            }
        }

        [DllImport("gdi32.dll", EntryPoint = "DeleteObject")]
        [return: MarshalAs(UnmanagedType.Bool)]
        public static extern bool DeleteObject([In] IntPtr hObject);

        public ImageSource ImageSourceForBitmap(Bitmap bmp)
        {
            var handle = bmp.GetHbitmap();
            try
            {
                ImageSource newSource = Imaging.CreateBitmapSourceFromHBitmap(handle, IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
                DeleteObject(handle);
                return newSource;
            }
            catch (Exception ex)
            {
                DeleteObject(handle);
                return null;
            }
        }
    }
}

6. 截图