Can't create video preview window -- the video stream freezes almost
immediately?
Sun, 29 Jun 2008 16:57:11 -0700 (PDT)
Hi guys,
In GraphEdit, I can view the output of my webcam by setting up a
simple graph like this:
1. Create webcam filter
2. Right-click on capture pin (the only pin), click "render"
3. Click play button
The preview window then pops up and shows the video from the camera.
It works fine in GraphEdit, ...
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using WM9 encoder to capture video cannot work with custom transform filter
Sat, 28 Jun 2008 12:38:14 +0800
Although this is for DirectShow mobile, I decided to post it here as there
have been no replies when I post on microsoft.public.pocketpc.developer.
I am using on the CameraCaptureSample to capture a video. Although the
sample on its own works well, I want to improved it to grab the raw camera
data and work ...
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Out of Video Memory
Fri, 27 Jun 2008 11:34:02 -0700
Hi,
I have an application that runs multithread with Direct3D and DirectShow.
When it try to initialize an image and a video file at the same time, I got
this D3DERR_OUTOFVIDEOMEMORY error. I can tell it is the video memory not
enough for the application, which the computer only set to 128MB video memory ...
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How to configure MPEG2 demultiplexer
Fri, 27 Jun 2008 01:52:01 -0700
Hi All,
I am creating an application which look like this.
File Souce filter(Push mode)->mpeg2demultiplexer->mpeg decoder->renderer
for file source filter I am using "TS File Source". all connections are
proper but when i run the graph i can not see any frame on window. I will be
very thankfull if any o ...
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Libgraph design questions and opinions needed...
Fri, 27 Jun 2008 00:18:14 -0700 (PDT)
Hi
Please do take a look at
http://groups.google.com/group/comp.lang.c++/browse_thread/thread/8957bbc264802af9#
and let me know what you dshow folks think...
Vivek ...
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Trying to wrap synchronous WM reader in filter
Thu, 26 Jun 2008 12:21:01 -0700
I have a simple source filter that uses the synchronous reader. The input
is a WMV file (no audio). My filter connects to the DMO WMV decoder.
However, when I run, I get no video. I used the Tee filter and dumped the
output and I see the the WMV payload is correct. I am concerned that I am
not getting th ...
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dynamic format change in transform filter
Wed, 25 Jun 2008 04:56:54 -0700 (PDT)
Hi,
In a transform filter on receiving first sample, is dynamic format
change possible ?
I want to change the width and height of my output, but this would
happen only when the graph is in running state.
I tried queryacccept on video renderer s input pin,
(m_pOutput->GetConnected())->queryaccept, it r ...
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Cleaning up resources after VMR9
Wed, 25 Jun 2008 04:32:38 -0700 (PDT)
Hello,
I'm using VMR9 in renderless mode, after using it and closing
(cleaning the surfaces it creates) I get a memory leak:
Direct3D9: (INFO) :MemFini!
Direct3D9: (ERROR) :Memory still allocated! Alloc count = 139
Direct3D9: (ERROR) :Current Process (pid) = 00000de8
Direct3D9: (ERROR) :Memory Address: 00 ...
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How to develop a encoder with 2 input pins and one output pin
Wed, 25 Jun 2008 00:16:55 -0700 (PDT)
Hi All,
I have been asked to develop an encoder for echo canceller.
In which, i have to take 2 streams and process it and provide one
stream as output.
So, i feel, i need a transform filter with 2 inputpins and one output
pin. I am not sure, am i correct or not.
Kindly suggest me, how i can proceed.
W ...
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Help on SampleGrabberCB.BufferCB
Wed, 25 Jun 2008 00:01:31 -0700 (PDT)
Dear all,
I am using SampleGrabberCB.BufferCB to capture frames from a
framegrabber.
My problem is that the processing I am performing takes more than
40ms
and so I have to skip some frames in order to maintain a real-time on
the video feed.
As far as I have understood, this method always acquire a frame ev ...
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