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Diffstat (limited to 'v4l2-apps/libv4l/ChangeLog')
| -rw-r--r-- | v4l2-apps/libv4l/ChangeLog | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/v4l2-apps/libv4l/ChangeLog b/v4l2-apps/libv4l/ChangeLog index 11f6ca2fd..e69a8c8f4 100644 --- a/v4l2-apps/libv4l/ChangeLog +++ b/v4l2-apps/libv4l/ChangeLog @@ -1,3 +1,73 @@ +libv4l-0.6.0 +------------ +* Recognize disabled controls and replace with fake equivalents where + available +* Add support for decompressing ov511 and ov518 "JPEG", by 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. +* Fix a bug in the always report widths which are a multiple of 8 code added + in 0.5.97 + +libv4l-0.5.99 +------------- +* Link libv4lconvert with -lm for powf by Gregor Jasny +* Fix black screen on devices with hardware gamma control +* Fix crash with devices on which we do not emulate fake controls +* 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 + +libv4l-0.5.98 +------------- +* Add software gamma correction +* Add software auto gain / exposure +* Add support for separate vflipping and hflipping +* Add fake controls controlling the software h- and v-flipping +* Add ability to determine upside down cams based on DMI info +* Add the capability to provide 320x240 to apps if the cam can only + do 320x232 (some zc3xx cams) by adding black borders +* 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 +* Support V4L2_CTRL_FLAG_NEXT_CTRL for fake controls by Adam Baker +* Some makefile improvements by Gregor Jasny +* Various small bugfixes and tweaks +* The V4L2_ENABLE_ENUM_FMT_EMULATION v4l2_fd_open flag is obsolete, libv4l2 + now *always* reports emulated formats through the ENUM_FMT ioctl + +libv4l-0.5.97 +------------- +* As the version number shows this is a beta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 +* Currently whitebalancing gets enabled based on USB-ID's and it only gets + enabled for Pixart webcam's. You can force it being enabled with other + webcams by setting the environment variable LIBV4LCONTROL_CONTROLS, this + sets a bitmask enabling certain v4l2 controls which control the video + processing set it to 15 to enable both whitebalancing and normalize. You + can then change the settings using a v4l2 control panel like v4l2ucp +* Only report / allow supported destination formats in enum_fmt / try_fmt / + g_fmt / s_fmt when processing, rotating or flipping. +* 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 +* Add dependency generation to libv4l by: Gilles Gigan <gilles.gigan@gmail.com> +* Add support to use orientation from VIDIOC_ENUMINPUT by: + Adam Baker <linux@baker-net.org.uk> +* sn9c20x cams have occasional bad jpeg frames, drop these to avoid the + flickering effect they cause, by: Brian Johnson <brijohn@gmail.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 +* fix reading outside of the source memory when doing yuv420->rgb conversion + libv4l-0.5.9 ------------ * Add support for MR97310A decompression by Kyle Guinn <elyk03@gmail.com> |