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DarkBASIC Professional Discussion / Video Capture Firewire

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AlexI
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Posted: 29th Apr 2005 04:15
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i have asked this question before but with a lot of limaitations like no dlls and with usb converter

How can i show live camera footage from a sony camera threw a fire wire card?

Any dlls known
Any code
Any way at all
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Manson_NS
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Posted: 29th Apr 2005 04:35
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nope,
nope,
and nope,

video capturing in Windows generaly require use of avicap32.dll, which then again requires the use of a callback function to your prog - which the nice people who made DB won't help you with, and noone have ever got working, though there's been a few attempts.

However avicap32.dll has a function which copies a frame to the clipboard, at a very low fps, and costs you your CPU performance.
I have the last solution working around 10 fps if I recall correctly, but when connecting to more than two cams get your fps down to about 0.5
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AlexI
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Posted: 29th Apr 2005 04:38 Edited at: 29th Apr 2005 04:38
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Can i see the code for
Quote: "
I have the last solution working around 10 fps
"
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Sinistar
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Posted: 29th Apr 2005 06:38
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YEah me too!
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NoteJam
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Posted: 29th Apr 2005 15:01
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I have run several video editors on my computer, and I notice the capture options of one sometimes shows up as an option in another, but it was not there as option until I installed the second editor.

So I think maybe they have their own code, maybe hopefully its a dll we can get at?

Anyway, Pinnacle Studio av/dv comes with a firewire card.
Maybe if you ask them real nice, if there is any capture dll, would they share the docs on it, they just might. If that does not work, maybe contact the manufacture of some of these other capture programs that appear in not only their own editor, but in other editors as option.


Pinnacle is at www.pinnaclesys.com

PS: Their editor is cool, has support for vst audio plugins. can play mp3 and cds.

They have probably more video effects around than most editors.
You can also buy a program from them to create your own pinnacle video effects.

Thats part of the reason they have so many of them, people keep making new ones on their web site.

Firewire card and editor is about $80
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Nicholas Thompson
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Posted: 29th Apr 2005 19:45
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Quote: "
Maybe if you ask them real nice, if there is any capture dll, would they share the docs on it, they just might.
"


And maybe microsoft might release their next OS as Open Source :-P

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AlexI
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Posted: 29th Apr 2005 20:17
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once i have dll how would i use it?

never used DLLs before
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PowerSoft
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Posted: 1st May 2005 22:35
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hehe

[b]PowerScript: Currently Working on Expression Evaluating, thanks alot DavidT for the help
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Baggers
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Posted: 1st May 2005 22:41
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I think what powersoft is trying to say is it might be wise to find another project !

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Nicholas Thompson
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Posted: 2nd May 2005 00:54 Edited at: 2nd May 2005 00:54
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Baggers - why is Jazz humping a carrot?

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AlexI
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Posted: 2nd May 2005 00:57
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ha

Still Once i have DLL how would i use it?
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AndyPandy
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Posted: 2nd May 2005 02:22
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There is some webcam capture code using windows api's in the code section somewhere. Just select the firewire driver as capture device and it should work, u can also save an avi.
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Nicholas Thompson
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Posted: 2nd May 2005 02:30
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I have tried the webcam one.. What it does is save each frame as a BMP/DIB file in "C:\" and then loads it as an image in DBP.

Problem here is that even a 320x200 image is Über slow. A 720x576 image (standard DV input size from a camcorder) will absolutely slaughter DBP. I cant see how you'll be able to do anything usefull with it, unless you have a grid setup in your house thus spreading the processing load over around 20 PC's using gigabit LAN, or maybe fibre optics.. You might then reach about 20fps :-P

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AlexI
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Posted: 2nd May 2005 02:42
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well can somone post the code for the webcam thing and the driver.
PLEASE it my be awfull but, just something!
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Baggers
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Posted: 2nd May 2005 03:55
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Because he likes them !...arbeit maybe a little to much but thats his business !...but now youve embarrased him so ive changed it !

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Nicholas Thompson
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Posted: 2nd May 2005 05:32 Edited at: 2nd May 2005 05:32
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@!hi: Ok you're just being plain lazy now.. Type the word "webcam" into the perfectly good subject search box at the bottom and your answer is TOP OF THE LIST!!!

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NoteJam
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Posted: 2nd May 2005 13:59
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You can get the vgap dll for video capture, but its beta. You might need a different video card for it to work.
http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=2939&objectType=file
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NoteJam
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Posted: 2nd May 2005 14:04
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Here's a video capture tutorial on the capture dll lua. Think its visual basic.

http://www.technotecture.com/projects/libTAP/view.php/page/tut_video_lua
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NoteJam
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Posted: 2nd May 2005 14:14
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Tutorial on video capture.
http://babek.info/libertybasicfiles/lbnews/nl127/vidcap.htm
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AlexI
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Posted: 3rd May 2005 22:47
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Cool Thanks ill have a look at the dll
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