问题
I'm trying to get live feed from TPLink TL-SC3171G IP cam in C# app. I've tried using AForge.NET library but no luck. The sample code from AForge.NET doesn't work for me. I'm getting "The remote server returned an error: (401) unauthorized access."
I can access the cam via browser with basic ip adress: "http://192.168.168.20"
.
In app I've tried with:
"http://username:password@192.168.168.20"
"http://username:password@192.168.168.20:port"
Can you please help me with some direction. It really doesn't have to be AForge.NET library.
This is the code:
using AForge.Video;
using AForge.Video.DirectShow;
namespace Player
{
public partial class MainForm : Form
{
private Stopwatch stopWatch = null;
// Class constructor
public MainForm( )
{
InitializeComponent( );
}
private void MainForm_FormClosing( object sender, FormClosingEventArgs e )
{
CloseCurrentVideoSource( );
}
// "Exit" menu item clicked
private void exitToolStripMenuItem_Click( object sender, EventArgs e )
{
this.Close( );
}
// Open local video capture device
private void localVideoCaptureDeviceToolStripMenuItem_Click( object sender, EventArgs e )
{
VideoCaptureDeviceForm form = new VideoCaptureDeviceForm( );
if ( form.ShowDialog( this ) == DialogResult.OK )
{
// create video source
VideoCaptureDevice videoSource = form.VideoDevice;
// open it
OpenVideoSource( videoSource );
}
}
// Open video file using DirectShow
private void openVideofileusingDirectShowToolStripMenuItem_Click( object sender, EventArgs e )
{
if ( openFileDialog.ShowDialog( ) == DialogResult.OK )
{
// create video source
FileVideoSource fileSource = new FileVideoSource( openFileDialog.FileName );
// open it
OpenVideoSource( fileSource );
}
}
// Open JPEG URL
private void openJPEGURLToolStripMenuItem_Click( object sender, EventArgs e )
{
URLForm form = new URLForm( );
form.Description = "Enter URL of an updating JPEG from a web camera:";
form.URLs = new string[]
{
"http://195.243.185.195/axis-cgi/jpg/image.cgi?camera=1",
};
if ( form.ShowDialog( this ) == DialogResult.OK )
{
// create video source
JPEGStream jpegSource = new JPEGStream( form.URL );
// open it
OpenVideoSource( jpegSource );
}
}
// Open MJPEG URL
private void openMJPEGURLToolStripMenuItem_Click( object sender, EventArgs e )
{
URLForm form = new URLForm();
form.Description = "Enter URL of an MJPEG video stream:";
form.URLs = new string[]
{
"http://195.243.185.195/axis-cgi/mjpg/video.cgi?camera=4",
"http://195.243.185.195/axis-cgi/mjpg/video.cgi?camera=3",
"http://192.168.168.20:80",
};
if ( form.ShowDialog( this ) == DialogResult.OK )
{
// create video source
MJPEGStream mjpegSource = new MJPEGStream( form.URL );
// open it
OpenVideoSource( mjpegSource );
}
}
// Open video source
private void OpenVideoSource( IVideoSource source )
{
// set busy cursor
this.Cursor = Cursors.WaitCursor;
// stop current video source
CloseCurrentVideoSource( );
// start new video source
videoSourcePlayer.VideoSource = source;
videoSourcePlayer.Start( );
// reset stop watch
stopWatch = null;
// start timer
timer.Start( );
this.Cursor = Cursors.Default;
}
// Close video source if it is running
private void CloseCurrentVideoSource( )
{
if ( videoSourcePlayer.VideoSource != null )
{
videoSourcePlayer.SignalToStop( );
// wait ~ 3 seconds
for ( int i = 0; i < 30; i++ )
{
if ( !videoSourcePlayer.IsRunning )
break;
System.Threading.Thread.Sleep( 100 );
}
if ( videoSourcePlayer.IsRunning )
{
videoSourcePlayer.Stop( );
}
videoSourcePlayer.VideoSource = null;
}
}
// New frame received by the player
private void videoSourcePlayer_NewFrame( object sender, ref Bitmap image )
{
DateTime now = DateTime.Now;
Graphics g = Graphics.FromImage( image );
// paint current time
SolidBrush brush = new SolidBrush( Color.Red );
g.DrawString( now.ToString( ), this.Font, brush, new PointF( 5, 5 ) );
brush.Dispose( );
g.Dispose( );
}
// On timer event - gather statistics
private void timer_Tick( object sender, EventArgs e )
{
IVideoSource videoSource = videoSourcePlayer.VideoSource;
if ( videoSource != null )
{
// get number of frames since the last timer tick
int framesReceived = videoSource.FramesReceived;
if ( stopWatch == null )
{
stopWatch = new Stopwatch( );
stopWatch.Start( );
}
else
{
stopWatch.Stop( );
float fps = 1000.0f * framesReceived / stopWatch.ElapsedMilliseconds;
fpsLabel.Text = fps.ToString( "F2" ) + " fps";
stopWatch.Reset( );
stopWatch.Start( );
}
}
}
}
}
回答1:
For now I did it this way:
string sourceURL = "http://ipaddress/jpg/image.jpg";
byte[] buffer = new byte[100000];
int read, total = 0;
// create HTTP request
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(sourceURL);
req.Credentials = new NetworkCredential("username", "pass");
// get response
WebResponse resp = req.GetResponse();
// get response stream
Stream stream = resp.GetResponseStream();
// read data from stream
while ((read = stream.Read(buffer, total, 1000)) != 0)
{
total += read;
}
// get bitmap
Bitmap bmp = (Bitmap)Bitmap.FromStream(
new MemoryStream(buffer, 0, total));
pictureBox1.Image = bmp;
Of course I've put this code in a thread and I call it every 500 ms.
来源:https://stackoverflow.com/questions/15408404/ip-cam-live-feed-from-c-sharp