V4L2-library July 2008

v4l2-library@linuxtv.org

7 participants
23 discussions

Announcing libv4l 0.3.8
by Hans de Goede 03 Aug '08

03 Aug '08

Hi All, Here is release 0.3.8: http://people.atrpms.net/~hdegoede/libv4l-0.3.8.tar.gz This release has the following changes (some small tweaks left and right for more to the spec behavior, none of this fixes any known bugs). libv4l-0.3.8 ------------ * work around wrong REQUEST_BUFFERS ioctl return code from certain drivers * add pkg-config (.pc) files for easier detection if libv4l is available * check capabilities for streaming, if the driver cannot do streaming don't insert ourselves between the application and the driver * intercept get capabilites and report read capability (which we always offer) * query buffer: indicate the mapping state of our (fake) buffer in the flags Regards, Hans

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Announcing libv4l 0.3.7
by Hans de Goede 29 Jul '08

29 Jul '08

Hi All, Here is release 0.3.7 nothing special really, just adding a few more cam specific formats to libv4lconvert. This release has the following changes: libv4l-0.3.7 ------------ * Add spca505/6 and spca508 cam specific formats (YUYV per line variations) Go grab it here: http://people.atrpms.net/~hdegoede/libv4l-0.3.7.tar.gz Regards, Hans

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Announcing libv4l 0.3.5
by Hans de Goede 12 Jul '08

12 Jul '08

Hi All, Here is 0.3.5: http://people.atrpms.net/~hdegoede/libv4l-0.3.5.tar.gz This release has the following changes: libv4l-0.3.5 ------------ * Make JPEG decoding more robust Regards, Hans

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Announcing libv4l 0.3.1 aka "the vlc release"
by Hans de Goede 07 Jul '08

07 Jul '08

Hi All, I'm happy to announce version 0.3.1 of libv4l: http://people.atrpms.net/~hdegoede/libv4l-0.3.tar.gz This release has the following changes (baby steps now): libv4l-0.3.1 ------------ * Only serialize V4L2_BUF_TYPE_VIDEO_CAPTURE type ioctls * Do not return an uninitialized variable as result code for GPICT (fixes vlc, but see below) * Add a patches directory which includes: * vlc-0.8.6-libv4l1.patch, modify vlc's v4l1 plugin to directly call into libv4l1, in the end we want all apps todo this as its better then LD_PRELOAD tricks, but for vlc this is needed as vlc's plugin system causes LD_PRELOAD to not work on symbols in the plugins * camorama-0.19-fixes.patch, small bugfixes to camorama's v4l1 support, this patch only fixes _real_ bugs in camorama and does not change it to work with v4l1compat. Although it does work better with these bugs fixed :) With this patch and LD_PRELOAD=<path>/v4l1compat.so it works flawless. Regards, Hans

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PATCH: libv4l-really-sync-with-0.3.4.patch
by Hans de Goede 07 Jul '08

07 Jul '08

Hi, This patch _really_ syncs mercurial with the 0.3.4 tarbal I've just released, at the last minute I got a bugreport that kopete was not working with the wrapper leading to the following changes: * Some apps (xawtv, kopete) use an ioctl wrapper internally for various reasons. This wrappers request argument is an int, but the real ioctl's request argument is an unsigned long. Passing the VIDIOC_xxx defines through to the wrapper, and then to the real ioctl, causes the request to get sign extended on 64 bit args. The kernel seems to ignore the upper 32 bits, causing the sign extension to not make a difference. libv4l now also ignores the upper 32 bits of the libv4lx_ioctl request argument on 64 bit archs * Add a bugfix patch for kopete in the appl-patches dir, currently it assumes that it got the width and height it asked for when doing a S_FMT, which is a wrong assumption Note that this applies on top of my previous 0.3.4 sync patch, and note that it adds a file under appl-patches ! Thanks & Regards, Hans

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Announcing libv4l 0.3.4
by Hans de Goede 07 Jul '08

07 Jul '08

Hi All, I'm afraid version 0.3.3 had a nasty bug, so here is 0.3.4: http://people.atrpms.net/~hdegoede/libv4l-0.3.4.tar.gz This release has the following changes: libv4l-0.3.4 (the brownpaperbag release) ---------------------------------------- * The mmap64 support in 0.3.3, has caused a bug in libv4l1 when running on 32 bit systems (who uses those now a days?), this bug caused v4l1 compatibility to not work at all, this release fixes this * Some apps (xawtv, kopete) use an ioctl wrapper internally for various reasons. This wrappers request argument is an int, but the real ioctl's request argument is an unsigned long. Passing the VIDIOC_xxx defines through to the wrapper, and then to the real ioctl, causes the request to get sign extended on 64 bit args. The kernel seems to ignore the upper 32 bits, causing the sign extension to not make a difference. libv4l now also ignores the upper 32 bits of the libv4lx_ioctl request argument on 64 bit archs * Add a bugfix patch for kopete in the appl-patches dir, currently it assumes that it got the width and height it asked for when doing a S_FMT, which is a wrong assumption Regards, Hans

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PATCH: libv4l-0.3.4-sync.patch
by Hans de Goede 07 Jul '08

07 Jul '08

Hi, This patch syncs mercurial with the 0.3.4 tarbal I've just released, which contains the following single (brownpaperbag) fix: * The mmap64 support in 0.3.3, has caused a bug in libv4l1 when running on 32 bit systems (who uses those now a days?), this bug caused v4l1 compatibility to not work at all, this release fixes this Regards, Hans

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PATCH: libv4l-sync-with-0.3.3-release.patch
by Hans de Goede 06 Jul '08

06 Jul '08

Hi, This patch syncs mercurial with the 0.3.3 tarbal I've just released. note, please "hg add" all the files under appl-patches, you forgot this the last time, so these files are not in mercurial yet. Let me know if you want this split up in 3 or 4 incremental patches. Regards, Hans

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Announcing libv4l 0.3.3
by Hans de Goede 06 Jul '08

06 Jul '08

Hi All, I'm happy to announce version 0.3.3 of libv4l: http://people.atrpms.net/~hdegoede/libv4l-0.3.3.tar.gz This release has the following changes (aka the xawtv release): libv4l-0.3.3 ------------ * Add open64 and mmap64 wrappers to the LD_PRELOAD wrapper libs, so that they also work for applications compiled with FILE_OFFSET_BITS=64, this fixes using them with v4l-info * While looking at xawtv in general, found a few bugs in xawtv itself, added a patch to fix those to the appl-patches dir * Talking about the appl-patches dir, restore that as it accidentally got dropped from 0.3.2 * Be more verbose in various places when it comes to logging (esp errors) * Change v4lconvert_enum_fmt code a bit, so that it is easier to add more supported destination formats to libv4lconvert * Don't return -EINVAL from try_fmt when we cannot convert because the cam doesn't have any formats we know. Instead just return as format whatever the cam returns from try_fmt, this new behavior is compliant with the v4l2 api as documented Regards, Hans

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PATCH: libv4l-0.3.2-release.patch
by Hans de Goede 04 Jul '08

04 Jul '08

Hi, The current mercurial has been released on my homepage as tarbal release 0.3.2, the only changes from the current mercurial + all patches already send (including the asm patch from Gregor Jasny) is updating of the ChangeLog file and updating the version in the Makefile, these changes are included in the attached patch. Signed-off-by: Hans de Goede <j.w.r.degoede(a)hhs.nl> Regards, Hans Current mercurial will be released on my homepage as tarbal release 0.3.2 Signed-off-by: Hans de Goede <j.w.r.degoede(a)hhs.nl> --- a/v4l2-apps/lib/libv4l/ChangeLog Fri Jul 04 14:13:03 2008 +0200 +++ b/v4l2-apps/lib/libv4l/ChangeLog Fri Jul 04 16:17:59 2008 +0200 @@ -1,3 +1,9 @@ +libv4l-0.3.2 +------------ +* Add support for converting from sn9c10x compressed data +* Add support for converting from pac207 compressed data +* Add "make install" Makefile target + libv4l-0.3.1 ------------ * Only serialize V4L2_BUF_TYPE_VIDEO_CAPTURE type ioctls --- a/v4l2-apps/lib/libv4l/Makefile Fri Jul 04 14:13:03 2008 +0200 +++ b/v4l2-apps/lib/libv4l/Makefile Fri Jul 04 16:21:04 2008 +0200 @@ -1,5 +1,5 @@ LIB_RELEASE=0 -V4L2_LIB_VERSION=$(LIB_RELEASE).3 +V4L2_LIB_VERSION=$(LIB_RELEASE).3.2 all clean install: $(MAKE) -C libv4lconvert $@

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V4L2-library July 2008