Am Sonntag 03 Mai 2009 20:42:39 schrieb Brian Johnson: > Ok here are they patches i've been working on. > > Patch 1: > Fixes bug when you pass a height or width less then the minimum resolution > > Patch 2: > Adds in support for ENUM_FRAMESIZES ioctl. This allows applications to > get a list of the supported resolutions. Cheese actually uses this > determine the list of available resolutions. > > Patch 3: > This is the patch that actually adds preliminary SXGA support. Right > now it only works at all for ov965x sensors. To add support for other > sensors it is necessary to right a function to switch that sensor > between VGA and SXGA modes. Also mplayer due to a bug in mplayer will > only let you use up 640x480 even when specify a SXGA resolution. This > is due to the way in whcih mplayer sets the width and height > independently of each other. One more thing as of now i can only get > this working with the raw bayer format. When using jpeg I'm getting > frame sizes of about 1k and the S920 format gives frame sizes of 12096 > both of which are obviously too small. I'm pretty sure it should be > possible to get this working in the other formats but i've been unable > to get it working in any other format then bayer so far and am not > sure what exactly is wrong. > > > Greywater are you sure the windows driver actually does that while > looking through the usb log files 62b3 that have been uploaded it > appears that the windows driving while swithching to SXGA mode is > actually writing the same set of values for the windowing on the > bridge that are being used by our driver when set to SXGA mode. Of > course as far as i can it is also using the S920 format as well whcih > i haven;t yet been able to get working. > > On Sun, May 3, 2009 at 1:13 PM, Josua Grawitter <[email protected]> wrote: > > Am Sonntag 03 Mai 2009 00:18:10 schrieb Brian Johnson: > >> Look at this attached picture I captured using cheese. Pay attention > >> to the size of the image :-) > > > > I'm impressed. Pray tell - how did you achieve this? > > > > You may remember I concluded this was impossible because the windows > > driver cheated in the process (transferrring the SXGA compressed as VGA > > and recreating the high resolution by software means). Therefore your > > implementation would actually add a feature to our driver which the > > windows driver lacks. :) > > > > And of course: stupid me. > > > > GWater > > --~--~---------~--~----~------------~-------~--~----~ > Lets make microdia webcams plug'n play, (currently plug'n pray) > To post to this group, send email to [email protected] > Visit us online https://groups.google.com/group/microdia > -~----------~----~----~----~------~----~------~--~---
I never thought of skipping image processing. I thought JPEG was the only way to do it properly. (more data -> Compress!) GWater
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