Question

我将mpg视频流传输到Windows管道时遇到问题。我用命令ffmpeg.exe将视频解码到Windows管道，并使用C＃连接到该管道，并在Winform上显示视频。我已经尝试了许多命令，但是没有一个起作用。

FFmpeg命令：

ffmpeg -i Day Flight.mpg -f image2pipe pipe：1> //./ pipe / ffpipe

C＃代码：

using System;
using System.Drawing;
using System.Windows.Forms;
using System.IO;
using System.IO.Pipes;
using System.Threading;
using System.Runtime.InteropServices;
using System.Text;

namespace WindowsFormsApplication1
{

public partial class Form1 : Form
{

    String readLine_;
    private void readThread()
    {

        while (true)
        {
            readLine_ = reader_.ReadLine();
            if (readLine_ != null)
            {

                byte[] bytes = Encoding.Unicode.GetBytes(readLine_);
                //Console.WriteLine(readLine_);
                //Console.ReadLine();
                var ms = new MemoryStream(bytes);
                // Bitmap bm = new Bitmap(ms);
                Image im = (Bitmap)((new ImageConverter()).ConvertFrom(bytes));
            }
            else
                Console.WriteLine("empty string");

            //



        }
    }
    private NamedPipeServerStream server_;
    StreamReader reader_;


    public Form1()
    {
        InitializeComponent();
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        AllocConsole();
        server_ = new NamedPipeServerStream("ffpipe", PipeDirection.In, 1, PipeTransmissionMode.Byte);
        server_.WaitForConnection();
        reader_ = new StreamReader(server_);
        Thread t = new Thread(readThread);
        t.Start();


    }


    [DllImport("kernel32.dll", SetLastError = true)]
    [return: MarshalAs(UnmanagedType.Bool)]
    static extern bool AllocConsole();
}

}

我无法在C＃中获取图像，我的程序在行中崩溃图片im =（位图）（（（新ImageConverter（））。ConvertFrom（字节））;

而且我不知道自己在哪里出错-在ffmpeg管道中还是在C＃程序中 https://image.ibb.co/eGDymp/Przechwytywanie.png https://image.ibb.co/hWpM6p/Przechwytywanie.png

示例视频： http://samples.ffmpeg.org/MPEG2/mpegts-klv/Day%20Flight.mpg

FFMPEG流.mpg到Windows管道并以C＃显示视频

0 个答案: