Am Samstag 14 März 2009 19:49:01 schrieb Brian Johnson: > yes the way saturation is now it does not work correctly. does anyone > have an issue with reverting the patch that added saturation support > in there since its right now broken? > > On Sat, Mar 14, 2009 at 2:43 PM, Stefan Krastanov > > <[email protected]> wrote: > > The new version of libv4l is working (dmesg reports yuv420) but there is > > another problem, this time with saturation. > > When I change sat to any value <=254 the image goes grey. When I set it > > to 255 it's to saturated. When I reset Brightens or Contrast it gets > > normal. When I reset Saturation it gets grey again. Is this to be > > expected with my chip 0C45:6270 MT9V011? > > Screenshoots are attached. > > > > Regards > > Stefan > > > > 2009/3/14 Stefan Krastanov <[email protected]> > > > >> For me jpeg is working but the quality of the picture is very low. I'm > >> installing new libv4l now. > >> > >> 2009/3/14 Boris Borisov <[email protected]> > >> > >>> my version of libV4l is: > >>> * media-libs/libv4l > >>> Latest version available: 0.5.3 > >>> Latest version installed: 0.5.3 > >>> with jpeg format brightest and contrast also not working > >>> I test with ekiga > >>> > >>> Brian Johnson wrote: > >>> > The brightness works on the older version since that comes before we > >>> > got proper format switching working and it was using one of the hard > >>> > coded bridge formats. anyways brightness/contrast do not work ewith > >>> > raw bayer format because the bridge uses its color matrix to control > >>> > those, the color matrix is what the bridge uses to convert the raw > >>> > rgb values to yuv, and since the bridge passing through the raw bayer > >>> > pattern as received from the sensor without converting to a yuv > >>> > format brightness and contrast will not work with bayer format. > >>> > > >>> > There are two wys to get this working right first if you insmod the > >>> > module with the jpeg=1 parameter > >>> > (insmod ./sn9c20x.ko jpeg=1) libv4l should choose to use the jpeg > >>> > format instead of bayer or make sure you are using version 0.5.8 or > >>> > greater of libv4l whcih supports the bridges custom yuv format and > >>> > will choose that over bayer > >>> > > >>> > 2009/3/14 Boris Borisov <[email protected]>: > >>> >> Because I write a part of old driver, special decoder for 6270 > >>> >> cameras. > >>> >> On new releases this is decoder is not included. In this case I use > >>> >> my old copy of repository May 2008. > >>> >> Because my implementations is using this functions (image > >>> >> processing) access via sys-fs tuning picture (normalization) is very > >>> >> important . New release is used for decoder v4l2convert but that is > >>> >> no very clear solution for my situation because this is library some > >>> >> time is generating core dump and stop production line (very often if > >>> >> is using with V4L1). Also converter is get more resources CPU and > >>> >> memory. On my visio systems based on Beagleboard the resources is > >>> >> very important for robotic speed. > >>> >> I post this issue because I can't solve for 20 minutes and not > >>> >> follow from long time new commitments. > >>> >> About git try with qgit or qgit4 graphics user interface program and > >>> >> save the time for understanding git. Yes is possible to get old > >>> >> revision. > >>> >> > >>> >> мЕЛ ДЕО > >>> >> Bobby > >>> >> > >>> >> Stefan Krastanov wrote: > >>> >>> Hello, > >>> >>> > >>> >>> On љ0C45:6270 with MT9V011 it's also not working(checked with > >>> >>> v4l2ucp). I have reported it, but failed to give details - I was > >>> >>> more interested in another problem. > >>> >>> > >>> >>> I have some time so I can check in exactly which version the > >>> >>> support regresses but I will need at least some initial time > >>> >>> interval in which > >>> >>> to begin the search. And also, I'll be happy if you can tell me how > >>> >>> to > >>> >>> row back to old versions using git (based on date if it's possible) > >>> >>> - if not I'll dig in the man page ;) > >>> >>> > >>> >>> Best Regards > >>> >>> Stefan Krastanov > >>> >>> > >>> >>> 2009/3/14 Boris Borisov <[email protected] > >>> >>> <mailto:[email protected]>> > >>> >>> > >>> >>> > >>> >>> љ љ Hello, > >>> >>> љ љ Can you check the brightness and contrast functions, because > >>> >>> for љ љ me this > >>> >>> љ љ functions is broken. > >>> >>> љ љ Really i call sn9c20x_set_contrast with different values of > >>> >>> brightness > >>> >>> љ љ and contrast via sys-fs and V4l functions (ekiga) but > >>> >>> brightness and > >>> >>> љ љ contrast is not changed. > >>> >>> љ љ On very old version (who I use) this functions is working. > >>> >>> > >>> >>> љ љ Best regards > >>> >>> љ љ Bobby > > --~--~---------~--~----~------------~-------~--~----~ > 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'm investigating the situation - let's at least wait till tomorrow. GWater
signature.asc
Description: This is a digitally signed message part.
