WPFMediaKit Discussions Rss Feed

New Post: namspac nt defined VS 2012

kartik93abc — Mon, 10 Jun 2013 13:57:45 GMT

I am noob in this field pls hlp
I have added reference to WPFmdiakit.dll and ShaderEffectLibrary.dll System.Windows.Interactivity.dll but still in xaml

<WPFMediaKit:DvdPlayerElement x:Name="dvdPlayer" Stretch="Fill"  Volume="1" PlayOnInsert="true"  LoadedBehavior="Play"/>

it says namespace prefix <WPFMdiaKit> not defined

New Post: VS2012 IDE errors?

jarvis01123 — Wed, 05 Jun 2013 22:41:04 GMT

Glad it worked out for you. If you can get sample grabbing to work with RGB-10 let me know :)

New Post: VS2012 IDE errors?

JosiahB — Wed, 05 Jun 2013 21:26:40 GMT

I don't know what I did, either a combination of building, rebuilding or relinking but its working now.

Weird.

New Post: VS2012 IDE errors?

jarvis01123 — Wed, 05 Jun 2013 21:12:21 GMT

Yeah recompile direct show lib and then reference the new dll when you recompile wpfmediakit and then reference the new dll

New Post: VS2012 IDE errors?

JosiahB — Wed, 05 Jun 2013 20:53:41 GMT

I have removed the offending controls, but now im getting this:

Error 1 Could not load file or assembly 'DirectShowLib-2005, Version=2.0.0.0, Culture=neutral, PublicKeyToken=67e7b740cdfc2d3f' or one of its dependencies. The system cannot find the file specified.

I am not sure is this is something in the WPFMediaKit or what.

Issues everywhere!

New Post: VS2012 IDE errors?

jarvis01123 — Wed, 05 Jun 2013 20:35:49 GMT

right click in your toolbox and choose items -> all wpf controls, browse to the .dll and add them.

New Post: Webcam capture

jarvis01123 — Wed, 05 Jun 2013 20:34:48 GMT

Been banging my head against a wall for about 2 days trying to figure this one out, pretty much to the point where I'm going to have to abandon WPFMediaKit if I can't get an answer soon. It's really too bad because it works flawlessly when I'm using a RBG24 camera but when I switch to an RBG10 camera I run into this scenario where the event never fires. Any help would be greatly appreciated.

New Post: VS2012 IDE errors?

JosiahB — Wed, 05 Jun 2013 20:34:45 GMT

the controls never show up in my toolbox, do i need to do something to add them? I was just using code from another example:

xmlns:Controls="clr-namespace:WPFMediaKit.DirectShow.Controls;assembly=WPFMediaKit"

New Post: Webcam capture

jarvis01123 — Wed, 05 Jun 2013 20:17:37 GMT

grpBuilder.RenderStream(PinCategory.Capture, MediaType.Video, this.capDev, null, (IBaseFilter)smpGrabber

where did you put this code? i don't have any reference to grpBuilder anywhere in the solution.

New Post: VS2012 IDE errors?

jarvis01123 — Wed, 05 Jun 2013 19:49:35 GMT

Not real sure about the XAML end of things, I have just been setting those with C#. Can you drag and drop the control on and let VS take care of that stuff?

New Post: VS2012 IDE errors?

JosiahB — Wed, 05 Jun 2013 19:46:11 GMT

Alright, that fixed most of the errors except two.

I have created a new project with the recompiled WPFMediaKit and Directshow2005 dlls. and im still getting these errors on these controls:

Error 1 The member "VideoCaptureDevice" is not recognized or is not accessible.
Error 2 The member "VideoInputDevices" is not recognized or is not accessible.

    <Controls:VideoCaptureElement Grid.ColumnSpan="2" DesiredPixelWidth="320"
                                              DesiredPixelHeight="240"
                                              FPS="30"
                                              Width="640"
                                              Height="480"
                                              VideoCaptureDevice="{Binding Path=SelectedItem, ElementName=videoCapDevices}"
                                              x:Name="videoElement" Stretch="Fill" 
                                              EnableSampleGrabbing="True"/>
    <ComboBox x:Name="videoCapDevices"
                      ItemsSource="{Binding Source={x:Static Controls:MultimediaUtil.VideoInputDevices}}"
                      DisplayMemberPath="Name"
                      Foreground="Black"
                      FontSize="20"
                      VerticalAlignment="Top"
                      Margin="0, 30, 0,0" Grid.Row="1"/>

New Post: VS2012 IDE errors?

jarvis01123 — Wed, 05 Jun 2013 17:15:01 GMT

I had the same errors and I grabbed all the source for this and DirectShowLib-2005 and recompiled both of them together and it it resolved the issues. It's better to do that anyway because then you have the source. You'll have to update all references.

New Post: 10-bit RGB With SampleGrabber

jarvis01123 — Wed, 05 Jun 2013 17:10:49 GMT

Hey I've been tinkering with this for a couple days and I'm having trouble grabbing a sample frame with a camera that uses 10-bit RGB instead of RGB24. The application works fine with a webcam using RGB24, but if I set the MediaSubType of the samplegrabber to anything other than null the NewVideoSample event never fires, and if I set it to null then the frame is hopelessly scrambled and apparently truncated somewhere upstream.

Any help would be appreciated! This is a great little library, thanks for creating it.

New Post: VS2012 IDE errors?

JosiahB — Tue, 04 Jun 2013 20:16:08 GMT

Hello!

I am a bit of a noob when it comes to xmal and code, but perhaps you could help. I am looking through the code example for the sample applications and the IDE is giving me errors like:

Error 1 The name "VideoCaptureElement" does not exist in the namespace "clr-namespace:WPFMediaKit.DirectShow.Controls;assembly=WPFMediaKit"

the program compiles and runs fine but the gui editor complains about invalid markup. is there anything I can do to fix these "errors"?

New Post: No video when running using graphics card in switchable graphics laptops

steveg89 — Tue, 28 May 2013 16:09:13 GMT

I've noticed an issue in our application where the system will display a blank screen when using the graphics card on laptops with switchable graphics. This happens with both NVIDIA and AMD cards. To be sure, I ran the demo application and saw the same results. Switching the applications to run in power saver (Intel HD graphics) causes video to work perfectly in both cases. Any idea what might be the cause of this?

New Post: EnhancedVideoRender shows nothing

alex_prvn — Mon, 27 May 2013 12:31:54 GMT

Hi GEN3RIC
i did what you told on that link i installed DirectX March 2009 runtimes also i registered EVRPresenter32.dll and EVRPresenter64.dll also
where i am using a 64 bit system after that i added the EVRPresenter64.dll reference then i choose VideoRenderer = EnhancedVideoRenderer
still nothing plays.

Can you help me how to do it.

Thank you

New Post: Fixed the flickering with multiple control instances

mparente — Sat, 25 May 2013 15:27:02 GMT

Thank you! This patch is greatly appreciated! :)

New Post: Play a video in fast forward or reverse

schungx — Mon, 20 May 2013 05:26:56 GMT

It depends on the video format. I believe some formats (like MPEG-1 VCD) can play at up to 4x SpeedRatio. Most newer formats just ignore SpeedRatio. I think for some video chipsets, MPEG4 videos support SpeedRatio up to 2x.

I have never seen a chipset or format that supports negative SpeedRatio...

The way I do it is to jump-seek.

New Post: Play a video in fast forward or reverse

markmacumber — Fri, 17 May 2013 02:35:09 GMT

I dont think that I did actually, sorry about that...but it was 3 years ago, so I cant 100% remember to be honest

New Post: Play a video in fast forward or reverse

frogger3d — Thu, 16 May 2013 13:07:28 GMT

Did you get this working? Whatever I set the SpeedRatio to the video plays at the default speed (1x).