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From: Hans de Goede <hdegoede@redhat.com>
Since all things fake controls enable (such as whitebalancing) depend upon
libv4lconvert_convert being called, do not fake controls when conversion
is disabled.
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
Only report / allow supported destination formats in enum_fmt / try_fmt /
g_fmt / s_fmt when processing, rotating or flipping.
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
As the version number shows this work is the basis for a beta release of the
0.6.x series, the big change here is the addition of video processing to libv4l
currently this only does whitebalance and normalizing (which turns out
to be useless for most cams) but the basic framework for doing video
processing, and being able to control it through fake v4l2 controls using
for example v4l2ucp is there.
The initial version of this code was written by 3 of my computer science
students: Elmar Kleijn, Sjoerd Piepenbrink and Radjnies Bhansingh.
This initial hg commit is a cleaned up and somewhat bug fixed version of
their code.
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
* Fix a nasty (and stupid) bug in the special try_fmt handling for UVC cams
* Add some more verbose logging of various calls when asking libv4l to log
calls to a file, to assist in (future) debugging
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
Always do a s_fmt on uvc cams even if this changes nothing, as not doing
the s_fmt triggers a bug in the uvcvideo driver in kernel <= 2.6.28
(with certain cams)
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
Avoid the use of try_fmt as much as possible on UVC cams, instead use the
results of the enum_framesizes ioctl. This is because:
1) try_fmt actually causes IO with UVC cams making apps which do lot of
querying of device capabilities slow (cheese)
2) some buggy cams don't like getting lots of UVC video probes and crash
when they do
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
Don't report DQBUF errors when errno is EAGAIN, this fixes flooding the
screen with errors when applications use non blocking mode
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
Check that s_fmt atleast gives us the width, height and pixelformat try_fmt
promised us, and if not disable conversion
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
Some drivers (pwc) do not properly reflect what one really gets
after a s_fmt in their try_fmt answer. So update dest format (which we
report as result from s_fmt / g_fmt to the app) with all info from the src
format not changed by conversion.
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
* Add support for software cropping from 352x288 -> 320x240 / 176x144 ->
160x120, so that apps which will only work with vga resolutions like
320x240 (Skype!) will work with cams/drivers which do not support cropping
CIF resolutions to VGA resolutions in hardware. This makes all 2.6.27 gspca
supported cams, except for the pac7302 which only does 640x480 (and skype
wants 320x240), work with skype
* The v4lconvert_convert function was becoming a bit of a mess, so split the
functionailiy into seperate v4lconvert_convert_pixfmt, v4lconvert_rotate and
v4lconvert_crop functions, and make v4lconvert_convert a frontend to
these
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Instead of having libv4l2util in v4l2-apps/lib and libv4l in v4l2-apps/lib/libv4l,
both are now moved to v4l2-apps/libv4l2util and v4l2-apps/libv4l.
This is much cleaner and less confusing.
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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