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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

DirectShow Virtual Video Capture Source Filter in C#

13 Oct 2012 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#

16 Jul 2012 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

20 Nov 2012 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.

7 Oct 2012 by Maxim Kartavenkov

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

VMR9 Allocator Presenter in C# with Direct3D Video Rendering

10 Jul 2012 by Maxim Kartavenkov

Articles describes how to make pure C# rendering video on VMR9 with custom allocator presenter over Direct3D in .NET

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.

Writing DirectShow Demultiplexors in C#. Part 2 - AVI File Source example

13 Oct 2012 by Maxim Kartavenkov

Article describes basic tasks for implementing your own File Source DirectShow filters.

Need help to Compare two images to identification

9 Jul 2011 by DaveAuld

There is a technical blog article on the subject;Face Recognition Project: Introduction To Face Recognition[^]

How to Scan Documents with your WPF Application

7 Sep 2012 by Dynamsoft

In this article, I’ll share with you how to utilize Dynamic .NET TWAIN in a WPF application to process your documents.

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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

how to display Directshow C++ preview in MFC

13 Mar 2011 by Espen Harlinn

This may help:Webcam with VISUAL C++ MFC[^]If that's not enough here is a few optional answers[^]RegardsEspen Harlinn

How to do fast bitmap stretching?

15 Mar 2011 by Olivier Levrey

If you want to really improve your image display, then consider using hardware accelerated functions. Use DirectX or OpenGL libraries.Once, I used DirectX and sprites to display a 2D image (and a few more things). I will copy the code that worked for me, but please note I am not a Direct3D...

compile success but link failed

28 Mar 2012 by Jochen Arndt

See How to avoid error "LNK2001 unresolved external" by using DEFINE_GUID[^].

directshow and cplus plus

9 Aug 2012 by Volynsky Alex

If you want simulate the printscreen in C++.Try this small example then...#include char EditText[256];int EditTextLength;/* Declare Windows procedure */LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);/* Make the class name into a global variable */char...

How to get the Average Time Per Frame?

15 Mar 2013 by Maxim Kartavenkov

You should get connected media type of your renderer and get information from VIDEOINFOHEADER structure.double GetFPS(IBaseFilter * _filter){ double _fps = 0; if (_filter) // Check if the filter passed { IEnumPins * _enum; // Query Enum pins if...

Can DirectShow convert pictures to a video?

6 Apr 2013 by Sergey Alexandrovich Kryukov

I saw this solution which I don't like very much: http://stackoverflow.com/questions/251467/how-can-i-create-a-video-from-a-directory-of-images-in-c[^].You can try to find some more: http://bit.ly/14NTPTx[^].I wouldn't to it. I would prefer to use FFmpeg which perfectly does this, as...

Two camera view simultaneously

12 Aug 2013 by Sergey Alexandrovich Kryukov

Please see my comment to the question, and then see the documentation:http://directshownet.sourceforge.net/faq.html[^].Basically, the Capture object expects the parameter representing the index of the device. Then you can use two different Capture objects exactly in the same way as you...

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...

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; }

Video Compression

28 Jan 2010 by Xmen Real

A Simple C# Wrapper for the AviFile Library[^]

How to save the capturing video file in mpeg1,mpeg2,mov,DV,wmv,avi

7 Jun 2010 by narmadha_s

This is Narmadha. Currently I am doing Video Capturing Project using Directshow. For this I Need Help for How to Save the video file in MPEG1,MPEG2,MOV,DV,WMV,AVI.Pls some body help me.Thanks in Advance.

How to access the Webcam in Windows 7

8 Jul 2010 by helianthus87

Try out OpenCV library which has very nice support for cameras and image processing at all and its for free ;)I'm not sure whats the web of this projectbut here's link to OpenCV wiki. You can find anything you need there.http://opencv.willowgarage.com/wiki/

CreatePosPassThru for multiple input pins

13 Jan 2011 by Kozlov_Sergey

What should I use instead of CreatePosPassThru for multiple input pins?STDMETHODIMP CTransformerOutputPin::NonDelegatingQueryInterface(REFIID riid, void **ppv){ CheckPointer(ppv,E_POINTER); ValidateReadWritePtr(ppv,sizeof(PVOID)); *ppv = NULL; if (riid ==...

[Solved] Avi splitter with multiple streams

26 Jan 2011 by Kozlov_Sergey

I have found "avisplitter.ax". It is perfect.

[Solved] Playing DVD using directshow

18 Mar 2011 by Kozlov_Sergey

I have got own video switcher filter. It has 20 input pins and 1 output pin. Every second only one input pin is active. Data from active input pin goes to output pin and next filter input pin.When i connect this filter after MPEG2 Decoder there is no image drawn by render filter. Without my...

rendering an audio stream (WASAPI / WINAPI )

21 Mar 2011 by cougar10

i'm currently reading the documentation of MSDN to render a stream to an audio renderer.. or in other word, to play my captured data from microphone.http://msdn.microsoft.com/en-us/library/dd316756%28v=vs.85%29.aspxthis example provides example.My problem now is that i couldn't...

video device on Dshow

4 Apr 2011 by MaulikDusara

use graphbuilder create a graph for that and add your device from external device

Play video and extract frame

20 Apr 2011 by Groulien

Hello all,Whilst working on a project, a strange little idea popped into my mind.I want to play a media file (any format but without a gui), allow the user to pause/resume the video and add the option to extract that frame as a bitmap (instead of making a screenshot).I've found the...

Need help to Compare two images to identification

9 Jul 2011 by thatraja

Addition to Dave's answer.Found a bunch in CPHuman Emotion Detection from Image[^]Pupil or Eyeball Detection and Extraction by C# from eye image[^]Face Detection in C#[^]Face and Eyes Detection Using OpenCV[^]Efficient Face Detection Algorithm using Viola Jones method[^]Face...

Realtime Direct Show rendering

20 Feb 2012 by weirdProgrammer-2

Hello,I have just started off a little bit of programming with Directshow.What I can do quiet easily is link up IGraphBuilder to a few filters such as IMediaControl, IBaseFilter, IVMRWindowlessControl, etc and play an avi file from the local harddrive by using a pGraph->RenderFile(..)...

Realtime Direct Show rendering

20 Feb 2012 by Sergey Alexandrovich Kryukov

Of course you should not use temporary files. This is a pretty big topic though.I hope this cycle of three CodeProject articles can help you to understand the techniques involved:DirectShow Filters Development Part 1: Video Rendering with Direct2D[^],DirectShow Filters Development Part...

what's wrong with my code?

27 Mar 2012 by OriginalGriff

Take out one of the close brackets and change the semicolon to a comma:OUR_GUID_ENTRY(CLSID_Sourcefilter_AVI_WAV, 0xd3588ab0, 0x0781,0x11ce, 0xb0,0x3a, 0x00 ,0x20, 0xaf ,0x0b,0xa7,0x70);x0b,0xa7,0x70);Becomes:OUR_GUID_ENTRY(CLSID_Sourcefilter_AVI_WAV, 0xd3588ab0,...

why it still reports no registered

29 Mar 2012 by barneyman

Looking at that filter in GraphEdit shows it to be a DMO - you need to wrap DMO's up in the IDMOWraperFilter[^] before you can use them as IBaseFiltersThe code in that web page is almost an exact replacement for your AddFilterByCLSID function

how can i add a Default Directsound Device to my filter graph

4 May 2012 by lanhxg

HRESULT CPlayer::AddDefaultDirectSoundDevice ( IFilterGraph *pfG,IBaseFilter ** ppF, LPCWSTR wszName){ HRESULT hr ; ICreateDevEnum *pSysDevEnum = NULL; hr =...

fail to enumerate putput pins in Async File Reader

8 May 2012 by Code-o-mat

I wanted to add this as a comment, but since that function seems to be gone (and i can't seem to be able to figure out how to send a "private message")...Did you specify the input for the filter? If not, try specifying the input (e.g. the URL or file name or whatever) and do the enumerating...

Capturing media stream using DirectShow

14 May 2012 by stib_markc

I have to capture the media stream coming from a website(say www.youtube.com). Are there any source filters for this task? If I have to write a filter myself for this task, then how to capture a stream that is coming from a website to my PC?

Document Processing SDK for .NET

2 Aug 2012 by Dynamsoft

In this article, I’ll show you how to embed document processing, such as image scanning, editing, and uploading, to your .NET application.

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Playing mp3 and aac using DirectSound or DirectShow

3 Oct 2012 by Maxim Kartavenkov

You are wrong abt DirectShow. That is possible to make using DirectShow without problems: you should write filter which will do providing data, you downloading, to upstream filters.DirectShow uses the DirectSound for playback, but standalone DirectSound does not performs the decoding (mp3...

How to choose a video capture device?

14 Oct 2012 by Maxim Kartavenkov

Hello,Devices are enumerated in your PC according they were initially appear in the system (Installed/USB Connected and so on). To identify the camera you can use moniker display name. Is contains full path to the device in a system, It can contains device PID and VID or other device key,...

convert graph edit diagram to c# code

27 Oct 2012 by Maxim Kartavenkov

Hello,Here you just need to insert your capture source ("Hauppauge WinTV PVR PCI II Capture") into filter graph, then render it via ICaptureGraphBuilder2 from pin "656" using RenderStream. So the brief graph building will be looks:ICaptureGraphBuilder2 _builder;IPin _output =...

Digital signal processor objects (DirectX)

30 Nov 2012 by Maxim Kartavenkov

Hello,#pragma comment(lib,"wmcodecdspuuid.lib")or __uuidof(CResizerDMO) instead of CLSID_CResizerDMORegards,Maxim

Digital signal processor objects (DirectX)

30 Nov 2012 by Maxim Kartavenkov

I post here as in comment it shows not formattedIBaseFilter * pYourFilter; // initialized int _numerator; // rate numeratorint _denominator; // rate denominatorIPropertyStore * _store;if (S_OK == pYourFilter->QueryInterface(IID_IPropertyStore,(void**)&_store)){ PROPVARIANT...

how can i add a Default Directsound Device to my filter graph

14 Mar 2013 by ud_

This is a solution from graph edit plus.CComPtr CreateFilterByName(const WCHAR* filterName, const GUID& category){ HRESULT hr = S_OK; CComPtr pSysDevEnum; hr = pSysDevEnum.CoCreateInstance(CLSID_SystemDeviceEnum); if (hrcheck(hr, "Can't create System...

How to change the filter property dynamically without opening the property dialog box?

24 Mar 2013 by Maxim Kartavenkov

I already anwering you abt that you should know filter interface which used to control it properties. After query that interface froom your filter object and use it methods to modify filter settings.IBaseFilter * _filter; // initialized by CoCreateInstanceIFilterControl * _interface;//...

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

28 Mar 2013 by Sergey Alexandrovich Kryukov

Please see: http://www.codeproject.com/search.aspx?doctypeid=1&q=%28Webcam+OR+%22Web+camera%22+OR+%22USB+Camera%22%29+%22.NET%22[^].You will find some decent solutions.—SA

How to draw, select, re-size & drop the drawing shapes?

11 Jun 2013 by JackDingler

There are two common methods for doing this.1. Check you cursor coordinates against each shape to see if it comes near any primitive. The downside of this technique is that the more shapes you have on the screen, the more need you'll have for optimizations to prune the selections down,...

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...

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...

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.

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...

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.

Sync two different cameras and show both using DirectShow

22 Nov 2009 by arash333

I am working with DirectShow. How can I work with two different types of cameras and read their data and render detail from both cameras in a synchronized way?I have already written a program that can read a camera's raw data but now I need to work with 2 cameras and synchronize them.

Need a unmanaged API that is similar to audiovideoplayback of managed code

1 Dec 2009 by Shivanand Gupta

audiovideoplay...

Need a unmanaged API that is similar to audiovideoplayback of managed code

27 Nov 2009 by Richard MacCutchan

Try this MSDN[^] section.

Sync two different cameras and show both using DirectShow

28 Nov 2009 by Matthew Tsay

Hi:You can add two camera source filters to your filter graph.And also two video render filters.Then connect them properly.Run the Filter Graph, then it is done. :laugh: In general, you don't have to purposely sync the two camera signal.Unless you need a precise control.Cheers!

Video Compression

28 Jan 2010 by Stephen Winch

Hi,This is the first C# program I've written and I'm having a slight problem trying to compress the video, I can get the video to display and save as an AVI, but it is uncompressed so takes a lot of disk space.I have added a snippet of code to show I am using the...

Rotate video in DirectShow

17 Feb 2010 by Fedos89

Good time of day!I have a problem, I need to rotate video in a window at an free angle. Is this possible (I am an dilettante in DirectShow), and how?Thank you.P.S. Sorry for my English)

Rotate video in DirectShow

18 Feb 2010 by Tim Yen

This has to be doable. You probably have to put a rotation filter into the DirectShow filter chain.Microsoft has a DirectShow player that rotates[^]Here's one that can claim to do it for...

DirectShow filter I wrote for Skype hangs after 10 to 24 seconds during video call

2 Apr 2010 by roschler

I've written a DirectShow push filter for use with Skype using Delphi Pro 6 and the DSPACK DirectShow library. In preview mode, when you test a video input device in the Skype client Video Settings window, my filter works flawlessly. I can leave it up and running for many minutes without an...

DirectShow filter I wrote for Skype hangs after 10 to 24 seconds during video call

3 Apr 2010 by E.F. Nijboer

Hello roschler,dropped udp packages? CoInitialize/CoInitializeEx propblems?My advice would be to wrap it into try..except and log into the system event log. You could also log the thread activity so you can detect if anything or nothing is happening. This could give you more info on...

DirectShow filter I wrote for Skype hangs after 10 to 24 seconds during video call

3 Apr 2010 by roschler

"dropped udp packages? CoInitialize/CoInitializeEx propblems?My advice would be to wrap it into try..except and log into the system event log. You could also log the thread activity so you can detect if anything or nothing is happening. This could give you more info on what's happening and...

DirectShow filter I wrote for Skype hangs after 10 to 24 seconds during video call

12 Apr 2010 by E.F. Nijboer

Hello Robert,On the skype website there is an interesting hotfix that addresses to your problem. With this hotfix we have resolved a security vulnerability in Skype's Extras Manager and fixed video freezing issues for some of our users who were experiencing...

DirectShow filter I wrote for Skype hangs after 10 to 24 seconds during video call

12 Apr 2010 by roschler

Hello E.F. Nijboer,It turns out it's a problem that they introduced in a version some time after version 4.1.0.179. That version works fine. But the the 4.2 variants I've tried all fail. I discovered this because fortunately I had 4.1.0.179 on another station I had not upgraded and it did...

DirectShow filter I wrote for Skype hangs after 10 to 24 seconds during video call

14 Apr 2010 by E.F. Nijboer

Hello Robert,My last answer was quite on the spot then :-D Hopefully they fix it soon and now you know it wasn't you.... and bet it makes you feel a hole lot better :) Etienne

DirectShow filter I wrote for Skype hangs after 10 to 24 seconds during video call

14 Apr 2010 by roschler

Only if they fix it soon, otherwise I'll still feel bad. :)

About DirctShowNet & C#

19 Apr 2010 by Darkcharm

For days ,I tried to capture video streams by Web Camara with DirectShowLib.DLL and I gone through the samples to find the way .At last I writed the codes like this:DsDevice[] theDevices;theDevices = DsDevice.GetDevicesOfCat(FilterCategory.VideoInputDevice );this .Text =theDevices...

how display a picture while playing a sound by DirectShow

19 Apr 2010 by oycw

I can display a picture or a sound via the method "RenderFile" of IGraphbuilder interface. But I want to display a picture and a sound at the same time。how do I?thanks.

how display a picture while playing a sound by DirectShow

20 Apr 2010 by mateusz.matyaszek

How about creating two instances of IGraphbuilder and using one for picture and other for sound. You will encouther problems with synchronization. There is a good article about this in The Code Project.

using self-writen samplegrabber filter and nullrenderer directshow

16 May 2010 by stonewind

Descritpion:...

Debug DirectShow

1 Jun 2010 by AndreBroz

How to debug DirectShow

How to save the capturing video file in mpeg1,mpeg2,mov,DV,wmv,avi

8 Jun 2010 by Dylan Morley

Nice article here...Video File Saving in Windows Media Video Format for the DirectX.Capture Class Library[^]Lots of links to other threads herehttp://www.dotnetspider.com/forum/160289-How-save-video-files-ASP-Net-using-C.aspx[^]

WaitForCompletion Error in Debuging Mode

23 Jun 2010 by Kim Mingon

Hello~~Is there anyone watch the World Cup 2010??I'm Korean so really really happy that Korean Team has gone to the Round of 16! Wow~!!Anyway...There is some Questions about DirectShow!I've made the program which could extract part of AVI from AVI file using...

Error_1_The name 'MainForm_ResizeMove' does not exist in the current context

3 Jul 2010 by btap_644

Hi, I tried to recreate the BitmapMixer sample from Directshow.NET in VS 2010 (The original sample works fine) and got the following errors in the Form1.csError 1 The name 'MainForm_ResizeMove' does not exist in the current context C:\Documents and Settings\TLNA\my documents\visual studio...

The name ‘Marshal’ does not exist in the current context

3 Jul 2010 by btap_644

I got the code below from the bitmapmixer sample (DirectShow.NET) and i tried to reimplement it. The original sample works fine. In my version when I try to compile i get errors.private void AddHandlers() { // Add handlers for VMR purpose this.Paint += new...

Displaying video capture in a picturebox in C# using directshow.net

29 Jun 2010 by btap_644

Hi, I have compiled the sample PLayCap (http://sourceforge.net/projects/directshownet/files/) from the directshow.NET (http://directshownet.sourceforge.net/) website in C#.PLayCap - This application creates a preview window for the first video capture device.Although the program works...

Displaying video capture in a picturebox in C# using directshow.net

29 Jun 2010 by William Winner

Well, just quickly looking at the source code, DirectShow uses an IVideoWindow.In the source code, it sets the owner of the IVideoWindow to the form.You could, instead, probably use a panel and just change the line:hr = this.videoWindow.put_Owner(this.Handle);to hr =...

The name ‘Marshal’ does not exist in the current context

3 Jul 2010 by Estys

Your previous question already covered the problem.All the methods and/or names present in the error messages need to be reachable by the compiler either through definition in your code or by reference to the assembly and namespace.Cheers

Error_1_The name 'MainForm_ResizeMove' does not exist in the current context

3 Jul 2010 by btap_644

Answer can be found at http://stackoverflow.com/questions/3171507/the-name-marshal-does-not-exist-in-the-current-context/3171515#3171515

recording video from TV via DirectShow

5 Jul 2010 by fanfanfyq

I'm working on a application recording video from TV via DirectShow. The function used is SetOutputFileName() parameter : MEDIASUBTYPE_AviIf compression filter (Cinepak Codec by Radius) is applied, the video recorded is suffering severe frame dropping. If no compression filter is applied,...

recording video from TV via DirectShow

5 Jul 2010 by Christian Graus

You need to use a better codec and get a faster machine, or use a lower image size or frame rate. You're dropping frames b/c your computer can't keep up, and you're out of sync because the codecs that come with windows all suck. DivX is a good codec. The other thing you can do with a slow...

How to access the Webcam in Windows 7

7 Jul 2010 by weylspinor

I am trying to write a a simple program that converts video from my webcam into ASCII text, like an ASCII art video. I currently have Visual Studio 2008, and will soon upgrade to VS 2010. My machine is Windows 7, 64 bit. My question is, which SDK can I use which will allow me to take frames...

using self-writen samplegrabber filter and nullrenderer directshow

3 Aug 2010 by Jarno Burger

I had also problems with the sample grabber towards a null renderer , to be used for direct3d surfaces , this is how i solved the samplegrabber part in c# ( i use directshow.net and c#):my sample grabber : /// /// a callback handler for samples /// The ISampleGrabberCB...

Snapshot of Video Overlay

10 Aug 2010 by Asif Bahrainwala

Taking snapshots of video overlay using DirectShow

Control the audio channel / track by using directshow

12 Sep 2010 by David Hey

hi,i have write(using vb.net) a small karaoke system which can play .mpeg, .AVI, .VOB 1 format video file by using directshow.but currently i'm facing a problem which i cant control the audio channel / track in the music video.Is that any methods or ways to allow me to control the audio...

Control the audio channel / track by using directshow

12 Sep 2010 by Abhinav S

Chcek these[^] links out.

Control the audio channel / track by using directshow??

19 Sep 2010 by David Hey

hi,i have write(using vb.net) a small karaoke system which can play .mpeg, .AVI, .VOB 1 format video file by using directshow.but currently i'm facing a problem which i cant control the audio channel / track in the music video.Is that any methods or ways to allow me to control the audio...

[Solved] WMV Splitter Filter

27 Jan 2011 by Kozlov_Sergey

Where can i take "WMV Splitter Filter"?First i will use it in "Graph Edit" from Direct eXtensions Software Development Kit, then in my program in C++.

DirectShow filter I wrote for Skype hangs after 10 to 24 seconds during video call

21 Sep 2010 by Kozlov_Sergey

It could be memory returning problems.

Control the audio channel/track by using directshow??

20 Sep 2010 by Sandeep Mewara

It's a 4th repost[^]! :doh: Whats the point? Stick to one. Wait for response. If needed edit/update it. (Just to add here, if you edit your question it will again pop it back at the top of questions stack.)

Control the audio channel/track by using directshow?

20 Sep 2010 by Sandeep Mewara

Its 2nd repost[^]!... :doh:

Creation copy of IMediaSample

29 Sep 2010 by Kozlov_Sergey

I try to create copy of IMediaSample from one of my two input pins of my Filter.Function HRESULT hr = m_pAllocator->GetBuffer(&pMediaSample->pOUTSBuffer_1,&start_time, &end_time,AM_GBF_NOTASYNCPOINT);returns 0x80040211.When using this function, Graph Edit hangs.

Creation copy of IMediaSample

29 Sep 2010 by Kozlov_Sergey

I decided to usepMediaSample->pINSSBuffer_1->QueryInterface(IID_IMediaSample,(void**)&pMediaSample->pOUTSBuffer_1);But i do not know, if QueryInterface creates new instance of desired object.

Modification of CTeeOutputPin::NonDelegatingQueryInterface for 2 input pins

30 Sep 2010 by Kozlov_Sergey

Graph Edit hangs because of this function, when begining to play movies.What is wrong?STDMETHODIMPCEncOutPin::NonDelegatingQueryInterface(REFIID riid, void **ppv){ CheckPointer(ppv,E_POINTER); ASSERT(ppv); *ppv = NULL; HRESULT hr = S_OK; // See what interface...

Modification of CTeeOutputPin::NonDelegatingQueryInterface for 2 input pins

1 Oct 2010 by Kozlov_Sergey

Here 2 interfaces for each pin must be returned. But we can return only 1 interface. That is the problem. To control seeking on 2 input pins, we must have 2 pairs of interfaces. But we can return only 1. So how can we get information of requiring pin?

Modification of CTeeOutputPin::NonDelegatingQueryInterface for 2 input pins

1 Oct 2010 by Kozlov_Sergey

I have modified project BaseClasses so now i can manage 2 pins. May be the desigion is to create 2 output pin (1 for each input pin) to set 1 input - 1 output. Output are same^ stereo picture.Any ideas?STDMETHODIMPCEncOutPin::NonDelegatingQueryInterface(REFIID riid, void **ppv){ ...

Modification of CTeeOutputPin::NonDelegatingQueryInterface for 2 input pins

4 Oct 2010 by Kozlov_Sergey

I tryed to implement IMediaSeeking in Filter class.I have implemented interface request, most of functions.When request of this interface is enabled in my Filter appears ASSERT message when creating Filter.When request of this interface is disabled Filter hungs on seeking operation.Why...

Modification of CTeeOutputPin::NonDelegatingQueryInterface for 2 input pins

4 Oct 2010 by Kozlov_Sergey

In the Filter the vector queue is used// Struct for queued samplesstruct Sample{ DWORD dwFlags; IMediaSample *pINSSBuffer_1; // Кадр от первого входного пина IMediaSample *pINSSBuffer_2; // Кадр от второго входного пина IMediaSample *pOUTSBuffer_1; // Кадр от первого...

Video with NVidia 3D Vision

20 Oct 2010 by Kozlov_Sergey

I have read presentation from NVidio about NVidia 3D Vision.I have got monitor, video board, glasses.I use the render video filter to display video in full screen with the simple video player.In this filter the image is drawing using Direct3D surfaces.I load it from IMediaSample to two...

Video with NVidia 3D Vision

20 Oct 2010 by Kozlov_Sergey

My second filter displays stereo image, when video consist of two images: left and right together.The question is: "Why sometimes aplication hangs when switching mode to windowed on the line with gImageSrc->Release();?"The code of rendering function is here:HRESULT...

[DirectShow] How to use VMR-9 to display video as "Nearest Neighbor"?

26 Oct 2010 by phongvm90

Dear Experts,I am currently using directShow to write a video player in school project. I use VMR-9 in windowless mode as my renderer filter.Every thing work fine, my video player can play videos! But when I resize (in my case is enlarging) the application (which means resize the video...