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Questions tagged [directshow]

The Microsoft DirectShow application programming interface (API) is a media-streaming architecture for Microsoft Windows. Using DirectShow, your applications can perform high-quality video and audio playback or capture.

The Microsoft DirectShow application programming interface (API) is a media-streaming architecture for Microsoft Windows. Using DirectShow, your applications can perform high-quality video and audio playback or capture.

DirectShow is a part of Windows SDK. Earlier, it was a part of DirectX 9.0 SDK (the last version outside of Windows SDK was dated February 2005).

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How to process raw UDP packets so that they can be decoded by a decoder filter in a directshow source filter

Long Story: There is an H264/MPEG-4 Source I can able to connect this source with RTSP protocol. I can able to get raw UDP packets with RTP protocol. Then send those raw UDP packets to a Decoder[h264/mpeg-4] [DS Source Filter] But those "raw" UDP…
Novalis
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How to create virtual webcam in Windows 10?

I would like to take video from a webcam, render some text on the frames and do some motion tracking and pass it on to a virtual webcam so it can be streamed easily. I found some answers on stackoverflow suggesting that I should use DirectShow.…
Lukáš Neoproud
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Virtual Webcam Driver

I want to develop a virtual webcam driver which from User mode I'll pass image to it and it will display as webcam output. I don't want to use DirectX filter and CSourceStream etc. Because they don't work on some programs which doesn't use DirectX…
Franklin
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Forcing Mpeg2Demultiplexer to use ffdshow to render H264 Digital TV Video

I spend a lot of time trying to make DTVViewer sample of DirectShow work unfortunately with no success. The video format of DVBT network is H264 and I found that the IntelliConnect behavior of IFilterGraph prefers to use Mpeg2 Video format. For…
Bakhshi
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How to detect if HDMI cable is plugged into PCMCIA card / no signal?

I'm trying to write a simple helper application that is used to prompt the user to turn on a camcorder if no signal is detected, which in this case would mean the camcorder is off and/or the HDMI cable is not plugged into the PCMCIA capture card. If…
klcjr89
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Including a .idl file in a C++ project

I'm building a project in C++ which uses DirectShow's video capture library to connect to a camera. The video card manufacturer (BlackMagic) has provided .idl (Interface Definition Language) files which add new capture graphs to the standard…
wyatt
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DirectShow vs. Media Foundation for video capture?

I'm trying to choose between these two APIs for a Video Capture/Monitoring/Streaming application, and I'm not sure which is going to be the best bet. A bit of background: I need it to work with a wide range of video capture cards/dongles. The app…
Roddy
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GStreamer or DirectShow for Windows development?

I'm implementing a lecture-capture project for a local university. Multiple video streams will arrive at one PC: the presenter's desktop slides, a video camera image of the presenter himself and optionally a digital whiteboard capture. These…
StackedCrooked
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How can I reverse engineer a DirectShow graph?

I have a DirectShow graph to render MPEG2/4 movies from a network stream. When I assemble the graph by connecting the pins manually it doesn't render. But when I call Render on the GraphBuilder it renders fine. Obviously there is some setup step…
ZebZiggle
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What does regsvr32 filename.ax actually do?

regsvr32 filename.ax I just see it said something installed successfully,but what's the whole story?
wamp
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How can I create a video from a directory of images in C#?

I have a directory of bitmaps that are all of the same dimension. I would like to convert these bitmaps into a video file. I don't care if the video file (codec) is wmv or avi. My only requirement is that I specify the frame rate. This does not…
JP Richardson
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Virtual webcam input as byte stream

I dont have webcam. And I want to implement virtual webcam (or fake device driver may be) that would work as normal webcam(virtual webcam) and takes memory stream or bytes as input. How can I develop this? Can DirectShow be helpful in this? I dont…
Nikunj Patel
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Where can I find a thorough DirectShow tutorial?

I've read through the MSDN documentation on DirectShow and it's still confusing. I feel like I need more context for what the objects are: Graphs, Pins, Filters...etc. A Google search doesn't give me much to work with. What do I need to grok…
JimDaniel
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FFmpeg Hardware Acceleration -> GPU + DirectShow

Is there a hardware accelerated version of FFmpeg (e.g. a version that utilizes the GPU)? Also, does anybody use FFmpeg with GPU support? Possibly for scaling and converting video format? Or, for example, use DirectShow for image scaling and…
NoviceAndNovice
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Video Capture output always in 320x240 despite changing resolution

Ok I have been at this for 2 days and need help with this last part. I have a Microsoft LifeCam Cinema camera and I use the .NET DirectShowLib to capture the video stream. Well actually I use WPFMediaKit, but I am in the source code of that dealing…
Adam
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