Re: [Motion-user] Gray pictures

[Angel C. <ac...@te...>]

Jeff , 

This new feature was added :
http://www.lavrsen.dk/foswiki/bin/view/Motion/ConfigOptionNetcamTolerantCheck

---------------- New Code ----------------------------------------
if ((cinfo->err->msg_code != JWRN_EXTRANEOUS_DATA) &&
        (cinfo->err->msg_code == JWRN_NOT_SEQUENTIAL) && (!
netcam->netcam_tolerant_check))
        netcam->jpeg_error |= 2;    /* Set flag to show problem */
------------------------------------------------------------------

---------------- Old Code ----------------------------------------
if (cinfo->err->msg_code != JWRN_EXTRANEOUS_DATA)
	netcam->jpeg_error |= 2;    /* Set flag to show problem*/
------------------------------------------------------------------

The patch was made to allow some cameras with broken of buggy firmware
work with motion ignoring JWRN_NOT_SEQUENTIAL warnings as errors.
That was a quick hack , a better solution could be create a leveled
option instead of binary ( on/off ). I had in mind to add this in new
logging feature of motion for 3.3.x but it's not easy without help from
people using network cameras , so any help is welcome.


Cheers,

El lun, 27-07-2009 a las 15:27 -0400, Jeff Groves escribió:
> Yeah, I've been seeing this as well. 
> 
> Apparently motion is no longer detecting incomplete or corrupted
> images.
> 
> A setting was added to motion to allow more suspect images to be
> accepted a while ago.  I would guess that perhaps that setting isn't
> obeying the configuration setting to turn that feature off.
> 
> Jeff G.
> 
> Steve Goldsmith wrote: 
> > Every once in a while I will get a false motion detection because I
> > get partial or full images with the rest of the image in gray (or
> > sometimes black). This happens on three different cameras using either
> > JPEG or MJPEG. The Cameras are as follows:
> > 
> > Trendnet TV IP100W
> > AirLink SkyIPCam AIC250W
> > AirLink SkyIPCam AIC500W
> > 
> > Would the lightswitch option work on this and if so what % should I use?
> > 
> >   

-- 
Angel Carpintero
ack ( at ) telefonica ( dot ) net

Key fingerprint = 3FD3 9C90 149E 7824 CECD  6BCF AC2C CA61 6EF1 B90D

"No basta saber, hay que aplicar lo que se sabe; 
no basta querer hacerlas cosas, hay que hacerlas".

"Knowing is not enough; we must apply. 
 Willing is not enough; we must do"

 Johann Wolfgang von Goethe