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On Mon, 23 Feb 2009 12:42:55 -0800 (PST), Xiaohan <wangxiaohan@gmail.com
Hi,
Saw a lot of data structures with starting from "A" in directshow
SDK. Just curious what does this "A" stand for?
Thanks
Started by Xiaohan on
, 4 posts
by 3 people.
Answer Snippets (Read the full thread at omgili):
Roman On Mon, 23 Feb 2009 12:59:03 -0800 (PST), Xiaohan <wangxiaohan@gmail... .
On Mon, 23 Feb 2009 12:55:03 -0800 (PST), "Roman Ryl..." <ryltsov@gmail.com
Hi,
AM stands for ActiveMovie, an ancestor technology for what is known as
DirectShow .
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On Sat, 25 Apr 2009 07:36:20 +0700, "James Duy Trinh \(VietDoor\)" <vietdoor@gmail.com
Hi all,
I used DirectShow to render a video file or webcam. With webcam, i can get
IID_IAMStreamConfig to change resolution, but not video file.
Any way to ...
Started by James Duy Trinh \(VietDoor\) on
, 3 posts
by 2 people.
Answer Snippets (Read the full thread at omgili):
However you might loose....
On Sat, 25 Apr 2009 02:48:30 -0700 (PDT), Ralf Globisch <Ralf.Globisch@gmail.com
You can't change the resolution of a video file using that interface
but you could alternatively scale the video to your desired
resolution .
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On Mon, 17 Nov 2008 17:17:07 -0800 (PST), Denis Gorodetskiy <noufos@gmail.com
Thanks for the answer, Alessandro!
I use standard microsoft baseclasses library. My filter class starts
like this:
class CAviSourceFilter
: public CSource /* IMediaFilter...
Started by Denis Gorodetskiy on
, 4 posts
by 3 people.
Answer Snippets (Read the full thread at omgili):
Are you saying that it is
called twice on the... .
On Tue, 18 Nov 2008 10:43:33 -0500, "Alessandro Angeli" <nobody@nowhere.in.the.net
From: "Denis Gorodetskiy"
IFileSourceFilter::Load() can only be called once in the
lifetime of a filter instance .
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On Thu, 27 Nov 2008 18:01:21 -0800, "Reve" <Reve@gmail.com
Data from a AVI file enters a graph as a stream of RIFF chunks or video
frames.
Is there any difference between RIFF chunks and video frames?
How to tell video frames are compressed or...
Started by Reve on
, 4 posts
by 3 people.
Answer Snippets (Read the full thread at omgili):
On Thu, 27 Nov 2008 20:19:23 -0600, "Thore Karlsen [DShow MVP]" <sid@6581.com
On Thu, 27 Nov 2008 18:01:21 -0800, "Reve" <Reve@gmail.com
A RIFF chunk could be anything, including things that are not video
frames, so yes there is a difference... .
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I would like to open a small video file and map every frames in memory (to apply some custom filter). I don't want to handle the video codec, I would rather let the library handle that for me.
I've tried to use Direct Show with the SampleGrabber filter...
Started by Steve Gury on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
This guide has a section....
It definitely has the capabilities you require.
Try using the OpenCV library.
It's also handy for many types of video processing including those useful for computer vision .
I have used OpenCV to load video files and process them .
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On Thu, 29 Jan 2009 04:57:00 -0800, mechi <mechi@discussions.microsoft.com
Hi!
MPC (MediaPlayerClassic) called SetFormat changed m_mt - to RGB32 320x240.
Then it tried to connect - but all of the formats it sent to CheckMediaType
were in RGB...
Started by mechi on
, 4 posts
by 2 people.
Answer Snippets (Read the full thread at omgili):
On Thu, 29 Jan 2009 09:35:58 -0800 (PST), "Roman Ryl..." <ryltsov@gmail.com
Mechi,
As long as you are using BaseClasses base and implemented SetFormat -
you accepted media type but default connection sequence on the output
pin does the following... .
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On Tue, 25 Nov 2008 02:41:01 -0800, Jon E <JonE@discussions.microsoft.com
Having used IAMStreamConfig for years I'm now finding cards that I can't seem
to set up.
Looking at the detail, it seems that I'm getting configuration settings that
are...
Started by Jon E on
, 6 posts
by 3 people.
Answer Snippets (Read the full thread at omgili):
Instead, use the AM_MEDIA_TYPE structure returned.
If they all do this then
assume mode selection is by forcing the AM_MEDIA_TYPE of
the pin (within avoid using the values in this structure.
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Есть приблизительно такой код.
Кто с этим работал, то всё очевидно. Получаем указатель на IAMStreamConfig и вызываем SetFormat().
Функция возвращает S_OK, но, если пытаемся сразу после этого вызвать GetFormat(), то находим,
что ничего не изменилось.
Код...
Started by DP on
, 9 posts
by 4 people.
Answer Snippets (Read the full thread at privet):
[2];
if(FAILED(hr)) goto after_set_format;
AM_MEDIA_TYPE* fmt = 0;
VIDEOINFOHEADER* pvi = NULL.
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On Tue, 14 Jul 2009 06:02:44 -0700 (PDT), Mechi <mechif@gmail.com
Hi!
The hardest problems are those that happen sometimes, but don't always
happen - well that's the situation here.
I've written an application in VC++ 2005 based on Amcap. I can...
Started by Mechi on
, 4 posts
by 2 people.
Answer Snippets (Read the full thread at omgili):
On Wed, 15 Jul 2009 11:26:55 -0700 (PDT), Jeremy Noring <kidjan@gmail.com
On Jul 14, 6:02 am, Mechi <mec...@gmail.com
It does sound like a timing issue to me; if it's anything like the
webcams I've worked with, they typically take a bit of time... .
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On Mon, 14 Jul 2008 16:46:01 -0700, Kris <Kris@discussions.microsoft.com
I am using VS2005 Pro, Directx9, WMV 9 Encoder/Decoder and DirectShow. I am
using two platforms; WindowsMobile (on a PocketPC) and XP(PC). I am sending a
live video stream...
Started by Kris on
, 13 posts
by 2 people.
Answer Snippets (Read the full thread at omgili):
So you are saying that the DMO encoder can change .
In any case, you *must* transfer the AM_MEDIA_TYPE from the
client to see if the
AM_MEDIA_TYPE is changing.
[1] + 5;
newData[0] = ...
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