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From: Hans de Goede <hdegoede@redhat.com>
libv4l: update upside down devices table
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
libv4l: beginning of 0.6.2 dev cycle
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
libv4l: Report V4L2_FMT_FLAG_EMULATED in v4l2_fmtdesc flags for emulated formats
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Theodore Kilgore <kilgota@banach.math.auburn.edu>
libv4l: support decompressing sn9c2028 compressed bayer
Priority: normal
Signed-off-by: Theodore Kilgore <kilgota@banach.math.auburn.edu>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Gregor Jasny <gjasny@googlemail.com>
Change controls shm segment name to include the username, as it is only
writable by the user (this means libv4l controls are per user)
Priority: normal
Signed-off-by: Gregor Jasny <gjasny@googlemail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
Some applications want to use jpg format if possible, so do not hide
it from the apps (do not assume it always needs conversion)
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
Some applications such as v4l2-apps/test/capture-example.c, in read mode
use select() together with read() and do a select() before the first read().
This causes issues together with certain drivers (gspca for example),
do not allow switching from read mode to mmap mode and they assume read()
mode if a select or poll() is done before any buffers are requested.
When not using libv4l2, this is not an issue but libv4l2 uses mmap mode
under the hood when converting as that safes a memcpy for each frame read.
This fails with such drivers when the application has done a select() before
the first read() as the driver now is in "read mode" and disallows switching
to mmap mode.
This patch fixes this by falling back to using read() for v4l2_read() when
using mmap mode fails.
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: bifferos <bifferos@yahoo.co.uk>
libv4l: README improvements
Priority: normal
Signed-off-by: bifferos <bifferos@yahoo.co.uk>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
libv4l: fixup 320x240 output for pac7302 cameras
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Gregor Jasny <gjasny@googlemail.com>
While studying the Debian library package name, I noticed that private
So /usr/lib/libv4l should become /usr/lib/libv4l0. As this would break
existing scripts, I suggest to start versioning with the next soname bump.
The line in the makefiles will then read:
ifeq ($(LIBSUBDIR),)
LIBSUBDIR = libv4l$(LIB_RELEASE)
endif
Unfortunately, the private subdirs in Debian must be named after the library
package, which would be libv4l-0. Therefore I need to configure the
LIBSUBDIR at compile time.
Priority: normal
Signed-off-by: Gregor Jasny <gjasny@googlemail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
libv4l: update upside down devices table
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
Improved pac207 decompression code to also support higher compression
modes of the pac207, which enables us to use higher framerates.
Many many thanks to Bertrik Sikken for figuring the decompression out!
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
libv4l: update upside down devices table
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
libv4l: whitebalance fix divide by 0 and avoid abrupt changes
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
Fix a bug in the always report widths which are a multiple of 8 code added
in 0.5.97
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
libv4l: add support for decompressing ov511 compressed frames
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
Change support for decompressing ov518 "JPEG" to piping data through an
external helper as I've failed to contact Mark W. McClelland to get
permission to relicense the code. If you know a working email address for
Mark W. McClelland, please let me know.
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 decompressing ov518 "JPEG", note this code is not
LGPL yet, I'm waiting for a license change permission. If I do not
get one this will be moved to an external helper and the data
will be piped through this, to keep libv4l2.so LGPL
Priority: normal
Signed-off-by: Hans de Goede
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From: Hans de Goede <hdegoede@redhat.com>
libv4l: recognize when controls are disabled
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans Petter Selasky <hselasky@freebsd.org>
Add a patch by Hans Petter Selasky <hselasky@freebsd.org>, which should
lead to allowing use of libv4l (and the Linux webcam drivers ported
to userspace usb drivers) on FreeBSd, this is a work in progress
Priority: normal
Signed-off-by: Hans Petter Selasky <hselasky@freebsd.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
libv4l: Fix black screen on devices with hardware gamma control
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Gregor Jasny <gjasny@googlemail.com>
libv4l: Link libv4lconvert with -lm for powf
Priority: normal
Signed-off-by: Gregor Jasny <gjasny@googlemail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
libv4l: 0.5.98 release
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
add gamma correction to the video processing, and enable it by default
(correct for a display gamma of 1.5) for pac207 based cams.
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
The V4L2_ENABLE_ENUM_FMT_EMULATION v4l2_fd_open flag is obsolete, libv4l2
now *always* reports emulated formats through the ENUM_FMT ioctl
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
Add software autogain / exposure, for camera's which have gain and
exposure controls but do not contain the ability to calculate the average
lumination in hardware (which is needed to do this in the kernel). This
patch enables this for the spca561 rev12a, but it should be usefull for
other cameras too.
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
Add the capability to provide 320x240 to apps if the cam can only
do 320x232 (some zc3xx cams) by adding black borders. And more in
general the capability to make certain standard resolutions available
by adding black borders to slightly smaller resolutions, in case we
encounter more cams which have a hardware limitation which makes them do
a resolution slightly smaller then the standard ones.
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
libv4l: fix detection of conversion mode in v4l2_buffers_mapped()
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
Rewrite video processing code to make it easier to add more video filters
(and with little extra processing cost). As part of this the normalize
filter has been removed as it wasn't functioning satisfactory anyways
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
When we need to go through the fake mmap buffer anyways, we can add
fake controls at no cost. So in the case of webcams which only
support non standard pixformats, export fake flipping controls, as this
can be done at no (performace) cost (until the user activates them).
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
Before this patch libv4l only support 180 degree rotation, which is
hflip and vflip combined, this patch adds support for separate
hflipping and vflipping.
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
libv4l: add Changelog entry for last 3 commits (I should really learn
to do this before comitting)
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
libv4l: Add sq905 to the list of devices which benefit from whitebalancing
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
libv4l: Only created shared memory segment when we have fake v4l2 controls
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
/ is not allowed inside shm names, so if the card name contains a /
replace it with a -
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
libv4l: link libv4lcontrol against rt, not libv4l2
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
Some applications / libs (*cough* gstreamer *cough*) will not work
correctly with planar YUV formats when the width is not a multiple of 8,
so crop widths which are not a multiple of 8 to the nearest multiple of 8
when converting to planar YUV
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
Fix reading outside of the source memory when doing yuv420->rgb conversion.
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: Adam Baker <linux@baker-net.org.uk>
Add check to libv4l of the sensor orientation as reported by
VIDIOC_ENUMINPUT
Priority: normal
Signed-off-by: Adam Baker <linux@baker-net.org.uk>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
* adjust libv4l's upside down cam detection to also work with devices
which have the usb interface as parent instead of the usb device
* fix libv4l upside down detection for the new v4l minor numbering scheme
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Brian Johnson <brijohn@gmail.com>
sn9c20x cams have occasional bad jpeg frames, drop these to avoid the
flickering effect they cause, by: Brian Johnson <brijohn@gmail.com>
Priority: normal
Signed-off-by: Brian Johnson <brijohn@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
prep for 0.5.9 release.
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Vasily Khoruzhick <anarsoul@gmail.com>
Recent sn9c20x driver written by microdia project
(http://groups.goolge.com/group/microdia) introduce new output format -
sn9c20x-i420. This format is actually scrambled yuv420, so it's very easy and
fast to convert it to yuv420. This patch adds sn9c20x-i420 decoder to the
libv4l-0.5.7
This decoder is much faster than jpeg one (sn9c20x supports JPEG too):
sn9c20x-i420 decoder eats only 10% of 1GHz CPU at 640x480x25fps vs 40% of
1GHz CPU in jpeg at same frame size/rate.
This format should be preffered for sn9c20x, because sn9c20x driver supports
SBGGR8 too, so it should go before SBGGR8 in supported_src_pixfmts.
Priority: normal
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com
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From: Hans de Goede <hdegoede@redhat.com>
Switch to using USB-id's instead of USB product string, as not all devices
set a unique product string. This fixes the upside down issues with
genius e-messenger 112 cams
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Gregor Jasny <gjasny@web.de>
Use Requires.private where appropiate in .pc files.
Priority: normal
Signed-off-by: Gregor Jasny <gjasny@web.de>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
Remove v4lconvert_yvyu_to_yuv420 function as its functionality is
duplicate with v4lconvert_yuyv_to_yuv420
Priority: normal
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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From: Julien BLACHE <jb@jblache.org>
Attached is a patch to add UYVY support to libv4lconvert. It's
obviously a shameless respin of the YVYU conversion routines :P
Tested on a USB Apple iSight, which only supports UYVY.
Priority: normal
Signed-off-by: Julien BLACHE <jb@jblache.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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