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.
> Hans V, can you take a look at this?
Not until I am back to Oslo at the beginning of January as all my webcams are
there.
Regards,
Hans
--
Hans Verkuil - video4linux developer - sponsored by Cisco
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
