Em 24-12-2010 12:41, Hans de Goede escreveu: > Hi, > > On 12/24/2010 03:20 PM, Hans Verkuil wrote: >> On Friday, December 24, 2010 15:19:26 Hans de Goede wrote: >>> Hi, >>> >>> On 12/22/2010 12:30 PM, Mauro Carvalho Chehab wrote: >>>> Hans V/Hans G, >>>> >>>> There's a nasty bug at qv4l2 or at libv4l: it is not properly updating >>>> all info, if you change the video device. On my tests with uvcvideo (video0) >>>> and a gspca camera (pac7302, video1), it was showing the supported formats >>>> for the uvcvideo camera when I changed from video0 to video1. >>>> >>>> The net result is that the image were handled with the wrong decoder >>>> (instead of using fourcc V4L2_PIX_FMT_PJPG, it were using BGR3), producing >>>> a wrong decoding. >>>> >>>> Could you please take a look on it? >>> >>> I'm pretty sure this is not a libv4l issue (other apps which allows witching >>> the source work fine), but rather a qv4l2 problem, esp. as it uses libv4lconvert >>> directly rather then going through libv4l (iirc). >> >> And I'm pretty sure it isn't a qv4l2 issue :-) >> >> For the record: qv4l2 can open a device node either in 'raw' mode bypassing libv4l >> and using v4lconvert to convert unsupported pixformats, or in 'wrapped' mode where >> libv4l is used for all device node accesses. >> > > Interesting, how does it switch between the modes? Mauro were you using wrapped mode > or raw mode when you saw this ? I have no idea, as I also didn't know about this feature, nor how to switch from one mode to the other ;) > > Regards, > > hans -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
