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DirectShow Virtual Video Capture Source Filter in C#

by Maxim Kartavenkov

Articles describes how to create virtual video capture source directshow filter in pure C#

H.264 CUDA Encoder DirectShow Filter in C#

by Maxim Kartavenkov

Article describes how to make H.264 Video Encoder DirectShow Filter using NVIDIA encoder API in C#

Video Effects in Direct3D. Part 1

by Maxim Kartavenkov

Article shows how easy to make various video effects using PixelShaders in Direct3D.

Writing DirectShow Demultiplexors in C#. Part 1 - Windows Media Splitter example.

by Maxim Kartavenkov

Article describes basic task which are requre to solve for developing your own DirectShow Splitter filters.

Latest Articles

H264 Encoder DirectShow Filter in C# on AMD GPU

by Maxim Kartavenkov

Make H.264 Video Encoder DirectShow Filter in C# using AMF SDK API from AMD

Reboot or Not to Reboot?

by Maxim Kartavenkov

This is a guide on how to configure your application, service or driver to handle appearing the new devices or device removal avoiding reboot request.

Camera_Net Library

by free5lot

Camera_Net is a FLOSS library for using video-cameras and video-inputs in .NET projects easily

Capturing Images from Camera using Python and DirectShow

by Andreask84

In this article, I propose a simple application written entirely in Python that allows you to capture images from a camera using DirectShow and to perform simple processing on them using OpenCV.

All Articles

DirectShow

H264 Encoder DirectShow Filter in C# on AMD GPU

24 Jan 2024 by Maxim Kartavenkov

Make H.264 Video Encoder DirectShow Filter in C# using AMF SDK API from AMD

Reboot or Not to Reboot?

13 Oct 2023 by Maxim Kartavenkov

This is a guide on how to configure your application, service or driver to handle appearing the new devices or device removal avoiding reboot request.

How to pass HWND of winforms C# to cpp DLL which contains directshow and stream video?

18 Nov 2022 by subbu Subhash

Hello all, I'm trying build an app which need to stream USB cameras, for that, I'm utilizing a source code from codeProject:Versatile WebCam C# library[^] where GUI is developed in C# but the to handle USB camera it uses Directshow...

How to pass HWND of winforms C# to cpp DLL which contains directshow and stream video?

18 Nov 2022 by steveb

First and foremost you need to be aware on what architecture you are: 32 bit or 64 bit. Your function with void CameraMethods::setParent(Int32 hwnd) { ghwndApp =(HWND) hwnd; } Isn't going to work in 64 bit. Int32 in a signed 32 bit integer...

How to pass HWND of winforms C# to cpp DLL which contains directshow and stream video?

17 Nov 2022 by KarstenK

There are always a lot of reason why it may not work. At first check ALL return code of used function, because you may miss some access rights. Another plain reason and my best guess is always that your code is drawing at some invisible...

Camera_Net Library

28 Apr 2022 by free5lot

Camera_Net is a FLOSS library for using video-cameras and video-inputs in .NET projects easily

Vb.net aforge video capture - memory is consumed and the camera freezes

11 Aug 2021 by Eyadox

I wrote code using Aforge to capture the Video from the camera and its working fine. My problem is when I just start the Camera in the preview mode only without recording, the camera (preview window) freezes after 15 or 20 seconds. Then I noticed...

Load a directshow filter file

30 Sep 2020 by Gerry Schmitz

The original article was written in 2002. There is nothing that 2002 has to offer that cannot be done easier today using Windows Forms, WPF, UWP or the current flavor of DirectX.

Load a directshow filter file

30 Sep 2020 by lukeer

Hi there, this article on DirectShow.NET[^] provides a library to use the C++-centric DirectShow framework from within managed C#. There is a DirectShow filter graph that has been saved to a file from within Microsoft's graphedt.exe. That one...

Get a control's handle in XAML

29 Sep 2020 by Pete O'Hanlon

Getting the handle requires a little bit of PresentationSource trickery. Your code will look something like this:HwndSource hwnd = PresentationSource.FromVisual(theControl) as HwndSource; if (hwnd != null) { handle = hwnd.Handle; }

Get a control's handle in XAML

29 Sep 2020 by lukeer

Hi forum, there's a software written in Windows Forms that connects the output of a DirectShow filter graph to a panel. hr = videoWin.put_Owner( videoPanel.Handle ); How do I obtain the handle of a XAML Rectangle, MediaElement, Border or...

Get a control's handle in XAML

29 Sep 2020 by Sandeep Mewara

If I understand correctly, you seek to play video in WPF and need events possible with it. Have a look at these: Playing video - The complete WPF tutorial[^] MediaElement Class Events (Windows.UI.Xaml.Controls) - Windows UWP applications |...

Vb.net aforge video capture - memory is consumed and the camera freezes

23 Aug 2020 by Hank Williams

Have you tried using the Aforge VideoSourcePlayer control instead of the picturebox control? I think the VideoSourcePlayer control is more suited to your needs.

Add a file writer to the GSSF sample

21 Mar 2019 by Richard MacCutchan

See DirectShow .NET / Discussion / Open Discussion:GSSF sample and Color Space Converter[^]

Add a file writer to the GSSF sample

21 Mar 2019 by Nizar Belhiba

Hi, as I mentioned in the title I would like to add a File Writer into the graph of the GSSF Sample, instead of rendering it. Actually What I really try to accomplish is, to add a second file Source Filter, then connect the GSSF and File source filter to an AVI Mux and finally to a File...

Add a file writer to the GSSF sample

21 Mar 2019 by OriginalGriff

Don't post this under Quick Answers - if you got the code from an article, then there is a "Add a Comment or Question" button at the bottom of that article, which causes an email to be sent to the author. They are then alerted that you wish to speak to them. Posting this here relies on them...

Directshow change source file and reuse graph

12 Mar 2019 by Nizar Belhiba

I'm trying to make a Desktop Capture Video, and merge it at the same time with another video (already captured from a camera) and have both images side by side in a new video. With VideoMixingRenderer9 Filter I can achieve the above effect, from a video with two outputs, same I can generate a...

Where Can I Get Streams.H And Baseclasses?

8 Feb 2019 by Todd Hendrix

You don't need to install the samples. Just download this zip and make a folder for it. GitHub - pauldotknopf/WindowsSDK7-Samples: Repository that has all the samples from the Windows 7 SDK, untouched[

Capturing Images from Camera using Python and DirectShow

13 Jan 2019 by Andreask84

In this article, I propose a simple application written entirely in Python that allows you to capture images from a camera using DirectShow and to perform simple processing on them using OpenCV.

Create/trim a video file using directshow

10 Jan 2019 by Nizar Belhiba

And here we go, for those who need to do something similar It's not that difficult as I thought in the beginning, when you know what you have to do! And that was exactly my main issue. I had no idea what to do or how to approach the task. So to get started in DirectShow you need to build a graph...

Create/trim a video file using directshow

10 Jan 2019 by Nizar Belhiba

I need to cut a sequence/period of an avi video file. Let's say the video is 5min long. I need to create a new video for example from time 1min to 2min. only images are mandatory, I don't care about the audio (my videos are without audio) by using iMediaSeek. GetDuration (out duration) and...

Create/trim a video file using directshow

10 Jan 2019 by RickZeeland

See answers here: How to trim the video using Directshow!?[^] And here: C# Video TimeLine Control for DirectShow & VLC Like Adobe AfterEffects[^] It also might be needed to install an older DirectX version, like the DirectX 9 SDK. This should still be available for download as DXSDK_Jun10.exe.

Making scoreboards and other dynamic graphics in directshow

15 May 2018 by Christian Graus

I think you should look at WPF. It uses DirectX to display everything and makes it easy to superimpose video on things.

Making scoreboards and other dynamic graphics in directshow

15 May 2018 by Member 13752082

We're working on a system to stream live sports events from the local high school stadium. We're feeding three IP streaming cameras into a laptop and switching between them with a DirectShow application we built in Visual Studio. We would like to superimpose a scoreboard and subtitles...

How can you stream live video from a webcam using C#

23 Nov 2017 by Member 9927463

Greetings,I am currently working on a project in which we need to stream live video off of a USB device and I was wondering, how I could go about doing it. I was able to accomplish the task using dynamic web twain(Trial Version) but I was wondering if there's another way that would be less...

Yet another Web Camera control

5 Nov 2017 by Alexander Iacobciuc

In this article you will find yet another implementation of a web camera control.

Setalphabitmap not working

16 Jan 2017 by EsakkiRaja

Hi all,I am trying to draw a line over the live video streaming in direct show application. Am successfully drawing a line but if I continuously want to create a line by calling the below function, i got an error E_OUTOFMEMORY from the SetAlphaBitmap(). Am calling drawlineOverlay() function...

Setalphabitmap not working

16 Jan 2017 by KarstenK

Create and populate the bitmap and the other stuff once at program start. These operations are "expensive" so do them as less as possible.//Gobal bitmapBITMAP bm = {0};// init with zerosvoid drawlineOverlay(HWND m_hwndApp){ //run code once if( bm.bmWidth == 0 ) { // set...

How to draw a line over the video streaming?

9 Jan 2017 by EsakkiRaja

drawLine1(int xx1, int yy1, int xx2, int yy2,HDC hdcBmp) { RECT clntRc; int temp,s1,s2,swap; x = xx1; y = yy1; dx = abs(xx2 - xx1); dy = abs(yy2 - yy1); s1 = sign(xx2 - xx1); s2 = sign(yy2 - yy1); swap = 0; if (dy > dx) { temp = dx; dx = dy; dy = temp; swap...

How to draw a line over the video streaming?

9 Jan 2017 by EsakkiRaja

Hi, i want to draw a line over the live video streaming in the windows application made with directshow in c++.What I have tried:So far i tried to draw a rectangle over the streaming using FillRect function and also the output was came . but i need to draw a line from any point to any point.

How to draw a line over the video streaming?

7 Jan 2017 by KarstenK

The best way is to create a top-most window with transparent background and than draw the line in it.

Getting teletext data

13 Jul 2016 by Saman With You

Hello,I downloaded this[^] source code which is a DVB-T tuner (TV software) written in C# using DirectShowLib. But it doesn't support teletext. How can I get teletext streaming data. It seems that it won't be that difficult but I have no idea how to do it and how to add teletext...

Getting teletext data

13 Jul 2016 by Patrice T

Your question is by far beyond the scope of the forum.If you want help, I suggest to contact the author/team where you have found this software. At least he already know the internals of the software and should be able to give you guidance.By posting on the software's forum, you will be in...

Writing a directshow filter as default video filter for specific video extension

12 Jul 2016 by Member 12482864

Hi guys,I want to write a directshow filter which can be installed on my system and works on my players as default filter, certainly i want it for an specific video type (like *.Avi or *.mp4 extension). And I know that my players must be used DirectShow to realize this work.What I have...

Bindtoobject of comtype returing error insufficient memory

22 Apr 2016 by ananddhelawat

I am calling BindToObject method of System.Runtime.InteropServices.ComTypes of IMoniker interface. And it is returning Insufficient memory exception.I am writing code to capture Images from webcam using Imoniker.Below is code snippet.// create bind context if (...

How can I set a graph in graphedit to capture both audio and video to mp4 file ? I know how ot capture the audio to wave file.

15 Apr 2016 by chocolade

This is the graphedit screenshot of my graph now. I'm using grapheditplus.View image: mygrapheditscreen[^]I tried for hours but can't find:1. How to save/capture the video stream to avi file.2. How to save/capture both audio and video to one mp4 file.What I have tried:I...

Gdiplus and directshow video renderer

29 Feb 2016 by mOOmOOn_

Hi,I developped an application capable of playing video with DirectShow and scrolling text with layered windows. Text is drawn using GDIPlus.I remarked text was sometimes stuttering when using EVR renderer.I could point out that stuttering occurs exactly during the RenderFile method...

Sample c++ program ( using directshow apis in windows ) to record video of desktop and sound from pc sound.

25 Feb 2016 by sunil_rbc

I want to record the desktop screen and also the output from PC sound on windows.I have searched the internet and could not find a sample program which uses Directshow APIs.I am targeting Windows 7,8 and 10 PCs.Further if the recording is successful then I would like it to stream it to a...

Directshow queryinterface is crashing instead of returning an error as it should be.

14 Feb 2016 by sdancer75

Hi,Using the QueryInterface like the code below hr = m_pPISourceFilter->QueryInterface(IID_IFileOffset,(void **)&m_pFileOffset);I always check if it fails like thisif (FAILED(hr)) { ReportError(_T("Failed to initialize the filter (FileOffset)."),hr); return...

How to play 1 audio sample with the wav header in default audio output device?

24 Dec 2015 by Сергей Козлов

I have found CWave class and modified if for own purposes.CWave class is found on the link CWave - A Simple C++ Class to Manipulate WAV FilesIt seems the formula isif(local_work_time.GetSeconds()>=1) Sleep(1); else { HRESULT hr; AM_MEDIA_TYPE...

How to play 1 audio sample with the wav header in default audio output device?

24 Dec 2015 by Сергей Козлов

How to play 1 audio sample with the wav header in default audio output device?Solution with directshow source filter will long time, because i need to write own source filter and put data to it.But if there is an example of the source filter in c++ i will take it.That is why i would...

I need CImage like class for audio

23 Dec 2015 by User 59241

The common and complete way to deal with audio streams and conversions is FFmpeg which I mentioned in a comment above. You will need to spend some time with it and I'm sure it will do all you require and plenty more: FFmpeg[^]Using FFmpeg in Windows Applications | Building Apps for...

I need CImage like class for audio

23 Dec 2015 by Сергей Козлов

I have got following code:CImage local_image; CaptureWndShot(local_main_dialog->web_camera_dialog.m_hWnd,&local_image,ENGINE_WINDOWS_SIZE_CX/2,ENGINE_WINDOWS_SIZE_CY/2); IStream *local_stream; HRESULT local_create_IStream_result = CreateStreamOnHGlobal ( 0 , TRUE ,...

Audio Capture does not work in the application but works in GraphStudioNext.

23 Dec 2015 by Сергей Козлов

Here is the solution:One should use FALSE as argument to this function to do not stop the graph to capture all the audio frames.hr = pAudioGrabber->SetOneShot(FALSE);

Audio Capture does not work in the application but works in GraphStudioNext.

23 Dec 2015 by Сергей Козлов

Here is the C++ code:#include #include #include #pragma comment(lib, "Strmiids.lib")#include "Qedit.h" void init_capture(); CComPtr pGraph; //менеджер графа фильтров CComPtr pBuild; //граф фильтра...

Where Can I Get Streams.H And Baseclasses?

23 Dec 2015 by Сергей Козлов

I decided to install SDK for Windows 7 and .NET Framework 4 on clean users' notebook with Windows 7 operating system.In progress.Filling to get success.UDPATE:SUCCESSED!

Where Can I Get Qedit.H?

23 Dec 2015 by CHill60

I presume you are using the Windows 7 SDK for which the absence of Qedit.h is a known problem.This post[^] suggests some workarounds[EDIT]I recommend attempting the solution that has gained the most votes

Where Can I Get Streams.H And Baseclasses?

23 Dec 2015 by CHill60

If you have already installed all of the appropriate SDKs then you need to update your include path to include $(WindowsSDK)\Samples\multimedia\directshow\baseclassesIf you haven't installed the SDK then you should do so - read the Building DirectShow Applications (Windows)[^]...

Where Can I Get Streams.H And Baseclasses?

23 Dec 2015 by Сергей Козлов

Where can i get Streams.h and baseclasses?It is for FreeMediaType function.

Where Can I Get Qedit.H?

23 Dec 2015 by Сергей Козлов

Where can i get Qedit.h?It is for ISampleGrabber interface and CLSID_SampleGrabber definitions.

How can I use screen capture filter with linphone?

29 Nov 2015 by icma

I have downloaded "Directshow screen capture filter using C#" source code and executable versions.And it worked well in other programs, but I can not use it in linphone or Skype.I want to use this filter in linphone as screen capture plugins, but when I test it in linphone, the captures...

Video rendering using Directshow push source filters.

5 Sep 2015 by barneyman

playback sample[^]writing a dshow app is quite simplecreate an windows app, the boilerplate one is sufficientcreate a command which creates, builds and runs a filtergraph, tell it to render in your main windowplay

Video rendering using Directshow push source filters.

3 Sep 2015 by Marokonikov

http://flylib.com/books/en/4.2...

How to achieve playback of DirectShow filter at difference rates

26 Jul 2015 by parisonj

Hi,Does anyone have any good tips or practical experience on controlling the playback rate of video/audio streams?Using SetRate() doesn't seem to give me reliable (smooth) results, certainly above values of 2.0, and often locks up completely.Ideally, I need to typical rates of x1, x2,...

how to mix aforge and DirectShow

9 Jul 2015 by Member 7676801

hmm, so no ideas ? no comments ?I guess only thing I can think of is Aforge is opensource, maybe figureout how their videosource works and if I can add a filter myself or something.

How to add timestamp in captured video

3 Jul 2015 by Member 7676801

Depending on how you did your video capture. For example if your using the new frame event, you can then use a Pen object or brush to put the timestamp on the Bitmap, and display the resulting bitmaps in a picturebox or whatever and you will have a live video effect, but timestamped. Another...

How Do I Preview/Display The Video From A Usb Device ? (Not A Camera)

23 Jun 2015 by chocolade

This is my code using DirectShowLib. In form1 just a button click that instance and show a new form:private void button3_Click(object sender, EventArgs e) { Video_Capture vc = new Video_Capture(); vc.Show(); }Then in the new form i...

how to mix aforge and DirectShow

22 Jun 2015 by Member 7676801

So I never typically have struggled in C# until I came across video. It seems one trial after another.Capturing using a crossbar 8820 devicecamera produces PAL videoworse yet video is interlacedneed to grab a frame at a time from the video.So in Aforge, I can get everything I...

DirectShow and Mpeg-2 Transport Stream video files

21 Jan 2015 by radnix

Greetings, I'm using C++ DirectShow and also C# DirectShow.Net to try to process and display MPEG-2 TS (Transport Stream) video files. These videos do play with VLC. I've been successful with video file types *.avi, *.wmv and *.mpg (type-1) but fail on Mpeg-2 TS. Does anyone...

how to play a list of files from LIstbox1 consistently using DirectShow?

29 Dec 2014 by Didanddid

In this code I am just trying to play files in a loop, sending the log file path from listbox1. But they play not sequentially, and simultaneously, the question is how to do that, they played consistently? so clear?

how to play a list of files from LIstbox1 consistently using DirectShow?

29 Dec 2014 by Didanddid

so not working... urgently need help private void menuItem6_Click(object sender, EventArgs e) { CleanUp(); listBox1.Items.Clear(); OpenFileDialog openFileDialog = new OpenFileDialog(); openFileDialog.Multiselect = true; ...

DirectShow won't connect splitter to video decoder filter?

27 Dec 2014 by O'Doudarragh

I'm trying to build a video player application for specific purpose using DirectShow. I've got stuck quite early - I cannot even connect filters into a graph.1. filter is async file reader. Loading a file succeeds. It has one output pin with MEDIATYPE_Stream, as expected.2. filter is Haali...

Can we connect a sample grabber filter to a lame filter to be able to access the buffer..?

9 Dec 2014 by aj_scorpio

hii i have made a program in Directshow using Visual C++ to convert the microphone audio into MP3 by using LAME ENCODER. Now i would like to access the buffer so that i can use the encoded data for further processes. So my question is can i use the sample grabber to do so. Pls help me i'm new to...

Record Microphone audio in mp3 format

1 Dec 2014 by aj_scorpio

Hiiiiiiiii i want to capture MICROPHONE audio and convert it into MP3 format and save it on disk. I've done the same for WAV file using the AudioRecorder WAV Dest Filter but i'm not getting any filter to convert to MP3... pls help me i'm new in DIRECTSHOW programming

Directshow, How to load url '[ IFileSource::Load(L"url") ]' with username/password?

30 Nov 2014 by Praveen S

hi, I need to load an URL with its username and password credential by IFileSource Filter. I am trying to get the stream of axis IP-camera by directshow filters.am now using AxisMjpegSourceFilter from axis communication, i had queryied IFileSourceFilter from the axis sourcefilter for...

How to change the CLSID of a dll or .ax directshow filter?

26 Nov 2014 by Member 11266179

Hi all,for kindeness I need to modify the CLSID of a .dll file directly into the .dllI don't need to change the CLSID value into the registry: I need to change the internal value inside the .dll so when I register it it get the new value that I would like.For example I have a...

Record Microphone audio in mp3 format

25 Nov 2014 by Kornfeld Eliyahu Peter

There is a lot of patent-related problems with the MP3 format, so be careful...Anyway you should check these libraries:http://ffmpeg.org/[^]http://gstreamer.freedesktop.org/[^]

Add ISampleGrabber filter using GMFPreview in C#

19 Nov 2014 by Dominio777

m_sampleGrabber = (ISampleGrabber)new SampleGrabber(); SetupSampleGrabber(m_sampleGrabber);hr = m_pSourceGraph.AddFilter(m_sampleGrabber as IBaseFilter, "SampleGrabber");DsError.ThrowExceptionForHR(hr);Something like that

Audio Capture through Microphone using DirectShow API

11 Nov 2014 by aj_scorpio

hiii everyone, i've to make a program using visual c++ using the Directshow API, to capture the audio input using a Microphone and save it in a file. And i dont know how to do it, i'm a beginner in Coding, so please help me.

RTSP Server Made Easy with LEADTOOLS

1 Nov 2014 by LEADTOOLS Support

RTSP Server Made Easy with LEADTOOLS

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Using intel media sdk API in directshow application !!!

21 Aug 2014 by Member 11020981

I am declaring a structure in my directshow application :- mfxFrameInfo outFrameInfo;And when I try to build it, I get the following error :"Error 2 error C2065: mfxFrameInfo: undeclared identifier"I am may be failing to set the environment properly. Can anybody help me out...

How to add timestamp in captured video

20 Aug 2014 by sursarkar

I am using directshow framework for video capturing. Video capturing is done properly. But i can not figure it out how to add timestamp in the video. I am expecting your help..Thanks.

My first DirectShow app just got a blue screen , why?

29 Jul 2014 by niujian2358

I got DixX coder and decoder when i installed "DivX Pro".As below,it works well when i test in Graphedt.exe.ScreenCapture -----> DivX 5.2.1 Codec -----> DivX Decoder Filter -----> Video Renderer.I tried in code like below, but does not work , all i get just a blue...

How to capture 4 feed as a split screen to a file in DirectShow?

13 Jun 2014 by J.Surjith Kumar

I am displaying 4 feed at a time using vmr9 renderer filter by splitting up a screen as four parts [UpperLeft,UpperRight,LowerLeft and LowerRight]. I want to capture the 4 feed while am rendering the 4 video what i have to do if is it possibile!? Is there any free muxer to handle the multi feed...

How to redirect renderer's input to Virtual source filter's output in directshow !?

13 Jun 2014 by J.Surjith Kumar

I am trying to create directshow virtual source filter. Which is to deliver the video sample of what the renderer currently displays. Exactly like what e2evcam filters does. I tried using the sample of push source filter example from the sdk, its accessing the image from the particular location...

Tv Tuner RF samples grabber filter

10 Jun 2014 by bling

Your best course of action is to purchase a USB tuner that provides IQ sampled data. Your TV tuner's driver likely doesn't support IQ samples and I don't think Direct-X was ever designed for this.A Realtek RTL2832U USB tuner device can be purchased for USD $20 or less (and there are over a...

Tv Tuner RF samples grabber filter

9 Jun 2014 by Member 7660407

Hi,I have run My USB Tuner from DirectX filter graphs. My Tv Tuner Card has no FM support and does not provide I/Q samples(Low frequency) as Realtek RTL2832u based USB Tuners, so i need to get RF samples directly from TV Tuner Analog Audio out pin and store it in hard disk for digital signal...

How Can I develop my own DirectShow sync File source Filter ?

26 Apr 2014 by chikeneh

Hi,I am vb.net Developer,I am new in Directshow and C++.Issue is:I need to change a video file(change in bytes of file with hashing or ....)to be playable only with my own software.As if it was copied by someone not playable.so I need to write player for turn back file to original...

directshow play mp4, display isn't normal.

9 Apr 2014 by Maxim Kartavenkov

You have video decoder issue.If you uses the defalt decoder, try to specify it manually in filter graph, or specify other one if you already uses your own decoder.Regards,Maxim.

directshow transform filter runtime error

9 Apr 2014 by Maxim Kartavenkov

The upstream filter query to change media type at runtime you pass that and ignore in your code, but the upstream filter allocates buffer according changed media type and you get's an exception.Another reason: you specify buffer size for allocator which is not enougth for your needs, try to...

Slide Show Editor : What Represenation Of Graphical Objects Should I Use For Preview ?

2 Apr 2014 by sdancer75

Hi,I want to create an slide show editor,with 2d & 3d object support (including video and images). I need also animation support. For the preview layer mode what framework should I use A) GDI or B) OpenGL ?Does OpenGL support easy basic object creation, like circles, rectangles etc,...

image-processing

directshow play mp4, display isn't normal.

1 Apr 2014 by Jeffery Jiang

I'm just use directshow for some days, I directly use MPC-BE filters. After input file name,then click play button:void CAFPlayerDlg::OnBnClickedButtonPlay(){ HRESULT hr = NOERROR; CString fileName; m_edtFileName.GetWindowTextW(fileName); if(fileName.GetLength()

directshow transform filter runtime error

22 Mar 2014 by Bill_Hallahan

I'm guessing you already got your answer here?http://social.msdn.microsoft.com/Forums/en-US/05c404d9-ef00-4328-a283-26cfbd110f46/directshow-transform-filter-runtime-error?forum=windowsdirectshowdevelopment[^]

directshow transform filter runtime error

21 Mar 2014 by Member 10690290

i had developed directshow transform filter using Dshow app wizard, it is running fine while using with graphedit.i had created gui in mfc, and load a source file, this transform filter by changing the define guid's to static guid's in itranform.h file, the gui worked fine it loads and...

Issue using DirectShow (QuartzTypeLib C# Wrapper). Decrease/Increase Speed

10 Mar 2014 by Member 10368610

I am using the QuartzTypeLib in order to play MP4 videos. I have tried to increase/decreasing the speed by setting the rate: mPosition.Rate = 1.5; // Increase rate by 50%I am getting an exception: {"The method or operation is not implemented."}I tried multiple options such as stopping,...

How to implement CCTV functionality in .net C# with web cams

8 Feb 2014 by SOHAM_GANDHI

[^] [^] [^] refer these articles

How to capture 4 feed as a split screen to a file in DirectShow?

6 Feb 2014 by joginder-banger

what type of error you are getting, it's not clear question. Plz share more information or Try on google. http://lmgtfy.com/?q=what+are+you+asking[^]

How to play the video backward using directshow!?

13 Jan 2014 by Andrew Okunev

Our new DirectShow source filter supports reverse playback for all kinds of files, including those with temporal compression (H.264, MPEG-2, etc.).We were able to achieve this by implementing reading, file splitting and decoding in a single component, thus avoiding DirectShow complexities,...

Frame Grab, Help Code C# to VbNET

10 Jan 2014 by NicoMartiSlimm

This could help:RemoveHandler Me.capture.FrameEvent2, New Capture.HeFrame(AddressOf Captura_Realizada)

Wanted to add a button to capture Images and videos from tv tuner using direct show in vb

9 Jan 2014 by Raj Vijay

Hello everyone i am a noob here. I have a project called context aware tv and i wanted to add image and video capture to the project.Ive seen many projects but didnt get through anyone here can help me with it.Any code that i can insert into my project

Custom directshow filter using ATL

30 Nov 2013 by aasikRaja

I developed text overlay filter extends from CTransInplaceFilter which displays a default text given inside code. I want a text overlay filter which receives 'text while graph is running'. That is the filter displays text when i given any 'string' or else not..Can i develop this with ATL...

How to implement CCTV functionality in .net C# with web cams

11 Nov 2013 by Gertlaub2

Hi all.I'm working on a reservation system that runs on a device that is installed in a bus. A new requirement is to save video files on this device that is split into 1 hour files. At the end of the journey this files will be synched back via WIFI at the depot. Currently we are looking at...

How to implement CCTV functionality in .net C# with web cams

11 Nov 2013 by SoMad

You don't mention the parameters you need to record at, specifically image resolution and frame rate. The higher you go on those settings, the more you will be taxing that poor Atom processor if you insist on doing the compression on the PC.I have worked on a product for many years where video...

Extracting closed captions and teletext using directshow

7 Nov 2013 by Maxim Kartavenkov

Hello,The closed captions can be stored as separate stream in the media file container, or embedded into video stream.In case of separate stream it can be the well known format for the stream (example "text"), or user defined. All that things is described in the container format....

Extracting closed captions and teletext using directshow

4 Nov 2013 by RBoy

Hi,I'm trying to write a c# program that extracts and dumps (not decode) teletext and closed caption data from a video stream into a hex file.I came across this - apparently directshow has support for teletext and closed...

View or capture a live stream e.g. earthcam

7 Oct 2013 by Flavio Regosa

Hi all.I need some help.I would like to know how to view or capture a live streaming like earthcam in directshow or c#. Can you help me, please?Thank you in advance.

Peak, VU meter on WinXP

2 Oct 2013 by Eduard Keilholz

DirectX (DirectSound) should be a good solution for WindowXP. You need to create a Filter (see the examples of DirectX, there are a couple of filter examples) and then make sure sounds are being played using a graph that includes your filter.Your filter must then provide information about...

Peak, VU meter on WinXP

2 Oct 2013 by Member 10265930

Hello!I need your help!I need create peak meter (vu meter) on windows XP.I tried make it with WASAPI, EndPointVolume and other, but these techonogies doesn't support WinXPI tried learn DirectSound, MCI and it ended in failure.What i need use? And how i need use it?I use VS and...

Scan and Save Images to a Database in C# Using Dynamic .NET TWAIN

12 Sep 2013 by Dynamsoft

Scan and Save Images to a Database in C# Using Dynamic .NET TWAIN

WDM / VFW ...my definitive solution...

20 Aug 2013 by Fabio Durigon

A class to handle WDM (Windows Driver Mode).