Re: [libvidcap-devel] [win32] listing device modes

[Peter G. <jpg...@gm...>]

Hi,

On Wed, Jun 25, 2008 at 4:19 AM, Jean Charles MAMMANA
<jc_...@ho...> wrote:
> I'm using the exemple.cpp source code to list all connected cameras and all
> modes for them. The list is the same for all camera and doesn't give the
> right available modes. (It seems the lib always return me the 44 first
> mode.

Are you using simplegrab or vidcapTester? There is no example.cpp.

What platform are you using? Windows? Mac? Linux?

Why do you suspect that the mode output is wrong? What other tools are
you using to query the device capabilities?

One thing to note is that libvidcap is reporting the modes it can
achieve using this video device, not all the modes that the video
device itself can achieve. For example, libvidcap does not know how to
convert motion jpeg into either rgb32, yuy2, or i420.

Pete

> Exemple :
> Device 00: USB Video Device
> Mode 00: 640x480 @ 15 fps (rgb32)
> Mode 01: 320x240 @ 15 fps (rgb32)
> Mode 02: 160x120 @ 15 fps (rgb32)
> Mode 03: 640x480 @ 30 fps (rgb32)
> Mode 04: 320x240 @ 30 fps (rgb32)
> Mode 05: 160x120 @ 30 fps (rgb32)
> Mode 06: 640x480 @ 29 fps (rgb32)
> Mode 07: 320x240 @ 29 fps (rgb32)
> Mode 08: 160x120 @ 29 fps (rgb32)
> Mode 09: 640x480 @ 10 fps (rgb32)
> Mode 10: 320x240 @ 10 fps (rgb32)
> Mode 11: 160x120 @ 10 fps (rgb32)
> Mode 12: 640x480 @ 1 fps (rgb32)
> Mode 13: 320x240 @ 1 fps (rgb32)
> Mode 14: 160x120 @ 1 fps (rgb32)
> Mode 15: 640x480 @ 15 fps (i420)
> Mode 16: 320x240 @ 15 fps (i420)
> Mode 17: 160x120 @ 15 fps (i420)
> Mode 18: 640x480 @ 30 fps (i420)
> Mode 19: 320x240 @ 30 fps (i420)
> Mode 20: 160x120 @ 30 fps (i420)
> Mode 21: 640x480 @ 29 fps (i420)
> Mode 22: 320x240 @ 29 fps (i420)
> Mode 23: 160x120 @ 29 fps (i420)
> Mode 24: 640x480 @ 10 fps (i420)
> Mode 25: 320x240 @ 10 fps (i420)
> Mode 26: 160x120 @ 10 fps (i420)
> Mode 27: 640x480 @ 1 fps (i420)
> Mode 28: 320x240 @ 1 fps (i420)
> Mode 29: 160x120 @ 1 fps (i420)
> Mode 30: 640x480 @ 15 fps (yuy2)
> Mode 31: 320x240 @ 15 fps (yuy2)
> Mode 32: 160x120 @ 15 fps (yuy2)
> Mode 33: 640x480 @ 30 fps (yuy2)
> Mode 34: 320x240 @ 30 fps (yuy2)
> Mode 35: 160x120 @ 30 fps (yuy2)
> Mode 36: 640x480 @ 29 fps (yuy2)
> Mode 37: 320x240 @ 29 fps (yuy2)
> Mode 38: 160x120 @ 29 fps (yuy2)
> Mode 39: 640x480 @ 10 fps (yuy2)
> Mode 40: 320x240 @ 10 fps (yuy2)
> Mode 41: 160x120 @ 10 fps (yuy2)
> Mode 42: 640x480 @ 1 fps (yuy2)
> Mode 43: 320x240 @ 1 fps (yuy2)
> Mode 44: 160x120 @ 1 fps (yuy2)
>
> For this camera I should have only these modes :
> Device 00: USB Video Device
> Mode 00: 720x480 @ 25 fps (YUY2)
> Mode 01: 704x576 @ 25 fps (YUY2)
> Mode 02: 160x120 @ 30 fps (YUY2)
> Mode 03: 176x144 @ 30 fps (YUY2)
> Mode 04: 320x240 @ 30 fps (YUY2)
> Mode 05: 352x288 @ 30 fps (YUY2)
> Mode 06: 640x480 @ 30 fps (YUY2)
> Mode 07: 1280x1024 @ 30 fps (MJPG)
> Mode 08: 1280x960 @ 30 fps (MJPG)
> Mode 09: 1280x720 @ 30 fps (MJPG)
> Mode 10: 1024x768 @ 30 fps (MJPG)
> Mode 11: 1024x576 @ 30 fps (MJPG)
> Mode 12: 800x600 @ 30 fps (MJPG)
> Mode 13: 720x480 @ 30 fps (MJPG)
> Mode 14: 640x480 @ 30 fps (MJPG)
> ________________________________
> Centralisez tous vos comptes mails dans Hotmail ! Créez un compte Hotmail,
> c'est gratuit !
> -------------------------------------------------------------------------
> Check out the new SourceForge.net Marketplace.
> It's the best place to buy or sell services for
> just about anything Open Source.
> http://sourceforge.net/services/buy/index.php
> _______________________________________________
> libvidcap-devel mailing list
> lib...@li...
> https://lists.sourceforge.net/lists/listinfo/libvidcap-devel
>
>