http://mitov.com/forum/ Sun, 17 May 2026 21:22:10 +0000 MyBB http://mitov.com/forum/thread-3112.html Mon, 10 Oct 2016 02:07:53 -0400 http://mitov.com/forum/thread-3112.html I'm using VideoLab .NET components in my C++/CLI project to recieve videostream from IP camera, save it to file adn show it in ImageDisplay component. I try to connect 4 cameras at once but I got 100% CPU loading while trying to save to file with compression. After checking mediainfo of file without compression I found out that I recieve stream with 500Mbit/s bit rate while camera gives 4Mbit bit rate stream. Guess that bit rate is cause of Bits/(Pixel*Frame) value that is 24.000 by default. Could I change this value somehow to recieve normal bit rate stream from camera? Or are there any other solutions of my problem?
I have Intel Core i5 750 2.67 GHz CPU

Thanks in advance.]]> I'm using VideoLab .NET components in my C++/CLI project to recieve videostream from IP camera, save it to file adn show it in ImageDisplay component. I try to connect 4 cameras at once but I got 100% CPU loading while trying to save to file with compression. After checking mediainfo of file without compression I found out that I recieve stream with 500Mbit/s bit rate while camera gives 4Mbit bit rate stream. Guess that bit rate is cause of Bits/(Pixel*Frame) value that is 24.000 by default. Could I change this value somehow to recieve normal bit rate stream from camera? Or are there any other solutions of my problem?
I have Intel Core i5 750 2.67 GHz CPU

Thanks in advance.]]> http://mitov.com/forum/thread-3104.html Tue, 02 Aug 2016 04:19:03 -0400 http://mitov.com/forum/thread-3104.html
we face another problem with the asfBroadcast component.

We can't manage to stream a live WebCam source. Avi-Files are working properly.
We tried every different encoding. We need support in this case.

Does someone maybe have a sample project with webcam broadcasting into network?

Thanks in advance

---

ErrorMessage is : "Failed to set input format"]]>
we face another problem with the asfBroadcast component.

We can't manage to stream a live WebCam source. Avi-Files are working properly.
We tried every different encoding. We need support in this case.

Does someone maybe have a sample project with webcam broadcasting into network?

Thanks in advance

---

ErrorMessage is : "Failed to set input format"]]> http://mitov.com/forum/thread-3103.html Wed, 22 Jun 2016 07:07:36 -0400 http://mitov.com/forum/thread-3103.html
i am struggeling with a Exception which occurs while trying to Open the BroadCast.

I just wanted to test out the asfBroadCast in a small Windows Forms Application, but always getting an Exception:

"An unhandled exception of type 'System.Runtime.InteropServices.SEHException' occurred in Mitov.VideoLab.dll

Additional information: Eine externe Komponente hat eine Ausnahme ausgelöst."

German Sentence means: "An external component has thrown a Exception".

I am currently using VS2015 Enterprise with VideoLab 7.6.0.0

Any help would be appreciated,

thanks!]]>
i am struggeling with a Exception which occurs while trying to Open the BroadCast.

I just wanted to test out the asfBroadCast in a small Windows Forms Application, but always getting an Exception:

"An unhandled exception of type 'System.Runtime.InteropServices.SEHException' occurred in Mitov.VideoLab.dll

Additional information: Eine externe Komponente hat eine Ausnahme ausgelöst."

German Sentence means: "An external component has thrown a Exception".

I am currently using VS2015 Enterprise with VideoLab 7.6.0.0

Any help would be appreciated,

thanks!]]> http://mitov.com/forum/thread-3090.html Tue, 19 May 2015 05:03:28 -0400 http://mitov.com/forum/thread-3090.html
Have any of ever work with the Blackmagic Ultrastudio or Deck link cards? Do you have any advice to try to make this work?


Any help will be very appreciate!

Thanks and best regards!]]>
Have any of ever work with the Blackmagic Ultrastudio or Deck link cards? Do you have any advice to try to make this work?


Any help will be very appreciate!

Thanks and best regards!]]> http://mitov.com/forum/thread-3087.html Fri, 27 Feb 2015 17:47:36 -0500 http://mitov.com/forum/thread-3087.html Mitov Library Version 7.5.1.0 (.NET)



No Source Code - only Openwire Editor!
(Win7 64bit, Visual Studio 2013 Ultimate)

Hardware Configuration (Signal Flow):

Laptop --> HDMI Out --> Datapath VisionRGB-E2S Capture Card HDMI IN
1920x1080 @60Hz
The Computer running the test-app is new installed with the latest Drivers

Playing Videos to the capture Card will result in a changing (!!!) latency of 1 to 4 seconds (sometimes even much more!).
4 seconds = 240 Frames Delay/Latency !!!
You also can only move the Mouse Pointer, and you will see that there is an extreme latency !!!

We have tested with several Apps and libraries from other manufacturers on the same Computer (we use different boot disks to completely seperate the different Software installations - but Keep the same Hardware !!!)
With all (!!!!!) other Apps / Libraries there is everytime (!) the same low latency (something about 5 Frames ...)

Please help - because this is a big Problem !!!]]> Mitov Library Version 7.5.1.0 (.NET)



No Source Code - only Openwire Editor!
(Win7 64bit, Visual Studio 2013 Ultimate)

Hardware Configuration (Signal Flow):

Laptop --> HDMI Out --> Datapath VisionRGB-E2S Capture Card HDMI IN
1920x1080 @60Hz
The Computer running the test-app is new installed with the latest Drivers

Playing Videos to the capture Card will result in a changing (!!!) latency of 1 to 4 seconds (sometimes even much more!).
4 seconds = 240 Frames Delay/Latency !!!
You also can only move the Mouse Pointer, and you will see that there is an extreme latency !!!

We have tested with several Apps and libraries from other manufacturers on the same Computer (we use different boot disks to completely seperate the different Software installations - but Keep the same Hardware !!!)
With all (!!!!!) other Apps / Libraries there is everytime (!) the same low latency (something about 5 Frames ...)

Please help - because this is a big Problem !!!]]> http://mitov.com/forum/thread-3003.html Wed, 31 Jul 2013 09:24:34 -0400 http://mitov.com/forum/thread-3003.html (Used MITOV Version: 6.0.0.9)

Starting this TestApp several times gives the following results.
- the videos are all flipped ...
- the videos will not start everytime ...
(testing with fullhd videos will also result in an application crash !)













Source:

Imports Mitov.VideoLab

Public Class Form1
Private Const m_ChannelCount As Integer = 12

Private Sub Form1_Load(sender As Object, e As System.EventArgs) Handles Me.Load
Dim IndexX As Integer
Dim ImageDisplayX As DSImageDisplay
Dim VideoPlayerX As DSVideoPlayer

For IndexX = 1 To m_ChannelCount
ImageDisplayX = New DSImageDisplay
ImageDisplayX.Stretch = True
ImageDisplayX.UseVMR = True
ImageDisplayX.Size = New System.Drawing.Size(200, 200)

FlowLayoutPanel1.Controls.Add(ImageDisplayX)

VideoPlayerX = New DSVideoPlayer
VideoPlayerX.OutputPin.Connect(ImageDisplayX.InputPin)
VideoPlayerX.Loop = True
'VideoPlayerX.FileName = "C:\Videos\" + CStr(IndexX) + ".avi" ' renamed "V0201-cinepak.avi" 1..12
VideoPlayerX.FileName = "C:\Videos\1.avi" ' renamed "V0201-cinepak.avi" 1
VideoPlayerX.Start()
Next
End Sub

Private Sub Form1_ResizeEnd(sender As Object, e As System.EventArgs) Handles Me.ResizeEnd
Me.Text = Me.Size.ToString
End Sub
End Class]]> (Used MITOV Version: 6.0.0.9)

Starting this TestApp several times gives the following results.
- the videos are all flipped ...
- the videos will not start everytime ...
(testing with fullhd videos will also result in an application crash !)













Source:

Imports Mitov.VideoLab

Public Class Form1
Private Const m_ChannelCount As Integer = 12

Private Sub Form1_Load(sender As Object, e As System.EventArgs) Handles Me.Load
Dim IndexX As Integer
Dim ImageDisplayX As DSImageDisplay
Dim VideoPlayerX As DSVideoPlayer

For IndexX = 1 To m_ChannelCount
ImageDisplayX = New DSImageDisplay
ImageDisplayX.Stretch = True
ImageDisplayX.UseVMR = True
ImageDisplayX.Size = New System.Drawing.Size(200, 200)

FlowLayoutPanel1.Controls.Add(ImageDisplayX)

VideoPlayerX = New DSVideoPlayer
VideoPlayerX.OutputPin.Connect(ImageDisplayX.InputPin)
VideoPlayerX.Loop = True
'VideoPlayerX.FileName = "C:\Videos\" + CStr(IndexX) + ".avi" ' renamed "V0201-cinepak.avi" 1..12
VideoPlayerX.FileName = "C:\Videos\1.avi" ' renamed "V0201-cinepak.avi" 1
VideoPlayerX.Start()
Next
End Sub

Private Sub Form1_ResizeEnd(sender As Object, e As System.EventArgs) Handles Me.ResizeEnd
Me.Text = Me.Size.ToString
End Sub
End Class]]> http://mitov.com/forum/thread-2990.html Fri, 21 Jun 2013 13:31:14 -0400 http://mitov.com/forum/thread-2990.html






Details (PDF Document):
http://www.rawvalue.at/merr/20130621_Err...videos.pdf]]>






Details (PDF Document):
http://www.rawvalue.at/merr/20130621_Err...videos.pdf]]> http://mitov.com/forum/thread-1331.html Mon, 07 Jan 2013 05:56:04 -0500 http://mitov.com/forum/thread-1331.html
Dscapture > mirror > snapshot > DSvideologger

Works great!! Only one problem. All the video seems to be saved in resolution 1280 X 720. I have tried to set the resolution to 1920 X 1080 (my HP HD-4410 is capable, It works with the oem software) but nothing changes. Tried all resolution but the result is always 1280 X 720.

BTW Great soft!!!]]>
Dscapture > mirror > snapshot > DSvideologger

Works great!! Only one problem. All the video seems to be saved in resolution 1280 X 720. I have tried to set the resolution to 1920 X 1080 (my HP HD-4410 is capable, It works with the oem software) but nothing changes. Tried all resolution but the result is always 1280 X 720.

BTW Great soft!!!]]> http://mitov.com/forum/thread-1265.html Sat, 15 Dec 2012 08:54:06 -0500 http://mitov.com/forum/thread-1265.html I have implemented an app using VideoLab that captures videos from the webcam using dsCapture (no audio/no video compression right now), shows the preview on a window and at the same time saves the captured video into a file by using aviLogger.

Sometimes I get two problems though:
1) At some point the audio gets desynchronized from the video with videos longer than 1 or 2 minutes (already checked that framerate of webcam corresponds to capture frame rate)

2) Sometimes when finishing recording and checking for the file just saved I realize the last 2/3 seconds of the recording are missing from the file. So, What is the proper way to close and save the file once recording is stopped by the user (via button on the GUI)?

Right now I am using the aviLogger Progress callback and when the "Args.currentFrame is >= currentFrame when recording was stopped"
I do the following in sequence (aviLogger is the member name of the component):
aviLogger.Close();
aviLogger.Enabled = false;
dsCapture.Enabled = false;

Any suggestion?
Thanks in advance,
Angelo]]> I have implemented an app using VideoLab that captures videos from the webcam using dsCapture (no audio/no video compression right now), shows the preview on a window and at the same time saves the captured video into a file by using aviLogger.

Sometimes I get two problems though:
1) At some point the audio gets desynchronized from the video with videos longer than 1 or 2 minutes (already checked that framerate of webcam corresponds to capture frame rate)

2) Sometimes when finishing recording and checking for the file just saved I realize the last 2/3 seconds of the recording are missing from the file. So, What is the proper way to close and save the file once recording is stopped by the user (via button on the GUI)?

Right now I am using the aviLogger Progress callback and when the "Args.currentFrame is >= currentFrame when recording was stopped"
I do the following in sequence (aviLogger is the member name of the component):
aviLogger.Close();
aviLogger.Enabled = false;
dsCapture.Enabled = false;

Any suggestion?
Thanks in advance,
Angelo]]> http://mitov.com/forum/thread-1223.html Fri, 30 Nov 2012 16:09:24 -0500 http://mitov.com/forum/thread-1223.html
1) Concatenate multiple videos into a single video

2) Overlap the videos by a small amount (perhaps 0.5s) with a fade transition between the videos

3) Compress the resulting single video to MP4 format

Can I do this with your VideoLab library? I'm thinking I have to create a DSVideoPlayer instance for each source video, wire them each to a single VideoMixer component, add a DSVideoCompressor component, and then use a DSVideoLogger component to write out the resulting file.

Is this about right?]]>
1) Concatenate multiple videos into a single video

2) Overlap the videos by a small amount (perhaps 0.5s) with a fade transition between the videos

3) Compress the resulting single video to MP4 format

Can I do this with your VideoLab library? I'm thinking I have to create a DSVideoPlayer instance for each source video, wire them each to a single VideoMixer component, add a DSVideoCompressor component, and then use a DSVideoLogger component to write out the resulting file.

Is this about right?]]> http://mitov.com/forum/thread-375.html Thu, 07 Jun 2012 05:44:30 -0400 http://mitov.com/forum/thread-375.html
I'm running DSVideSeekDemo project from supplied folder C#/VLDirectShowDemos

It works partly
The problem, that Progress event of DSVideoPlayer does not shoot, so the track bar is not updated and so on

My OS is Windows 7/64bit
Using Visual Studio 2008

Tanks in advance,
Alex]]>
I'm running DSVideSeekDemo project from supplied folder C#/VLDirectShowDemos

It works partly
The problem, that Progress event of DSVideoPlayer does not shoot, so the track bar is not updated and so on

My OS is Windows 7/64bit
Using Visual Studio 2008

Tanks in advance,
Alex]]> http://mitov.com/forum/thread-374.html Tue, 05 Jun 2012 10:15:55 -0400 http://mitov.com/forum/thread-374.html http://mitov.com/forum/thread-307.html Sun, 22 Apr 2012 10:25:05 -0400 http://mitov.com/forum/thread-307.html
when I try to alter the font style for drawing text using the DrawTextLayer class, I get a NullReferenceException:

var style = new Vcl.FontStyles();
style.Bold = font.Bold; // Here the exception is thrown

Is this a bug or is there another way to alter the font style?

I'm using version 5.0.2.0 of the VideoLab .Net components.

Thank you!
Christian]]>
when I try to alter the font style for drawing text using the DrawTextLayer class, I get a NullReferenceException:

var style = new Vcl.FontStyles();
style.Bold = font.Bold; // Here the exception is thrown

Is this a bug or is there another way to alter the font style?

I'm using version 5.0.2.0 of the VideoLab .Net components.

Thank you!
Christian]]> http://mitov.com/forum/thread-306.html Fri, 20 Apr 2012 04:07:08 -0400 http://mitov.com/forum/thread-306.html
is it possible to define a background color when displaying a text using the DrawTextLayer class? I'd like to do that in order to make the text more readable having a constant contrast.

Regards,
Christian]]>
is it possible to define a background color when displaying a text using the DrawTextLayer class? I'd like to do that in order to make the text more readable having a constant contrast.

Regards,
Christian]]> http://mitov.com/forum/thread-102.html Tue, 31 Jan 2012 06:17:48 -0500 http://mitov.com/forum/thread-102.html
Thank you!
Christian]]>
Thank you!
Christian]]> http://mitov.com/forum/thread-70.html Thu, 08 Dec 2011 04:13:12 -0500 http://mitov.com/forum/thread-70.html
I had previously used 4.5 without problems, yet now when I try and compile with 5.0.1 I get the following error:

Error 1 Could not load file or assembly 'file:///C:/Program Files (x86)/LabPacks/DotNET/Bin/2.0/Mitov.Native.AudioLabBasic.dll' or one of its dependencies. An attempt was made to load a program with an incorrect format. Line 130, position 5. C:\Program Files (x86)\LabPacks\DotNET\Demos\C#\VideoLabDemos\FreeFrameDemo\Form1.resx 130 5 FreeFrameDemo

The project is set to compile as x86 and not x64.

Any thoughts?

Best Regards
Chris]]>
I had previously used 4.5 without problems, yet now when I try and compile with 5.0.1 I get the following error:

Error 1 Could not load file or assembly 'file:///C:/Program Files (x86)/LabPacks/DotNET/Bin/2.0/Mitov.Native.AudioLabBasic.dll' or one of its dependencies. An attempt was made to load a program with an incorrect format. Line 130, position 5. C:\Program Files (x86)\LabPacks\DotNET\Demos\C#\VideoLabDemos\FreeFrameDemo\Form1.resx 130 5 FreeFrameDemo

The project is set to compile as x86 and not x64.

Any thoughts?

Best Regards
Chris]]> http://mitov.com/forum/thread-67.html Wed, 07 Dec 2011 04:03:35 -0500 http://mitov.com/forum/thread-67.html Is it possible to set
dsImageDisplay1.FullScreen = true
and showing the cursor shown (dsImageDisplay1.ShowCursor) ?

Best Regards.]]> Is it possible to set
dsImageDisplay1.FullScreen = true
and showing the cursor shown (dsImageDisplay1.ShowCursor) ?

Best Regards.]]> http://mitov.com/forum/thread-66.html Wed, 07 Dec 2011 02:31:58 -0500 http://mitov.com/forum/thread-66.html
When I press the left mouse button without moving the cursor - I do receive those events but with different locations (MouseEventArgs).
I think the offeset is consistent, and changed when the control is resized.

When pressing the right mouse button - the locations are equal.

The dsImageDisplay is docked (try also none docked) inside a tableLayoutPanel.

Any idea?
Best regards, Bodeg.]]>
When I press the left mouse button without moving the cursor - I do receive those events but with different locations (MouseEventArgs).
I think the offeset is consistent, and changed when the control is resized.

When pressing the right mouse button - the locations are equal.

The dsImageDisplay is docked (try also none docked) inside a tableLayoutPanel.

Any idea?
Best regards, Bodeg.]]> http://mitov.com/forum/thread-60.html Mon, 05 Dec 2011 09:10:47 -0500 http://mitov.com/forum/thread-60.html
Bitmap bmDest = gaussianBlur1.ProcessBitmap(bmSource);

where bmSource is a bitmap with pixel format Format32bppRgb.

All I get, is the exception "Attempted to read or write protected memory."

When testing for example with MorphFilter instead of GaussianBlur, it works correctly inside the same program code.


What might I do wrong?
Thank for any help,

Jüri Helekivi]]>
Bitmap bmDest = gaussianBlur1.ProcessBitmap(bmSource);

where bmSource is a bitmap with pixel format Format32bppRgb.

All I get, is the exception "Attempted to read or write protected memory."

When testing for example with MorphFilter instead of GaussianBlur, it works correctly inside the same program code.


What might I do wrong?
Thank for any help,

Jüri Helekivi]]> http://mitov.com/forum/thread-16.html Fri, 11 Nov 2011 08:28:41 -0500 http://mitov.com/forum/thread-16.html
i am checking out different video sdk's for a project. What i need to do is capture video from a webcam (or at least a capture source). But i should then be able to overlay flash file.

Can the vision sdk do this? At this moment we are thinking about using medialooks sdk for this, because that seems to be the only one that does it with an ok quality.

Regards,

Per]]>
i am checking out different video sdk's for a project. What i need to do is capture video from a webcam (or at least a capture source). But i should then be able to overlay flash file.

Can the vision sdk do this? At this moment we are thinking about using medialooks sdk for this, because that seems to be the only one that does it with an ok quality.

Regards,

Per]]>