v4l-utils-1.26.0

[Douglas R. Reno]

New minor version

[Xi Ruoyao]

The tarball is now in xz instead of bz2.

[Xi Ruoyao]

The building system is now meson. I'm pretty sure LLVM is not required. Clang is only used for the BPF target if libbpf is found, but libbpf is not a BLFS package.

In configuration log I have:

BPF IR decoders : NO

And in meson.build there is:

ir_bpf_enabled = prog_clang.found() and dep_libbpf.found() and dep_libelf.found()

[Tim Tassonis]

Ariel D'Alessandro (3):

• Add support for meson building
• Copy Doxygen configuration file to doc/
• meson: Add support for doxygen documentation

Benjamin Gaignard (1):

• v4l2-compliance: Test queue maximum buffers allocation

Daniel Lundberg Pedersen (1):

• v4l2-ctl: Add --get/--set-ctrl support for INTEGER and INTEGER64 arrays

Deborah Brouwer (18):

• v4l2-tracer: print only if debugging option is set
• v4l2-tracer: add macros to print debug info
• v4l2-tracer: stop stringifying v4l2_input "tuner"
• v4l2-tracer: add G/S TUNER ioctls
• v4l2-tracer: add VIDIOC_ENUM_FRAMESIZES
• v4l2-tracer: add VIDIOC_ENUM_FRAMEINTERVALS
• v4l2-tracer: stringify target in v4l2_selection
• v4l2-tracer: add event tracing/retracing
• v4l2-compliance: call select before dequeuing event
• v4l2-tracer: fix autogen script for AV1
• v4l2-info/v4l2-tracer: add macro to mark the trace
• v4l2-tracer: replace buftype2s with val2s
• v4l2-tracer: remove buffers by type and index
• v4l2-tracer: remove compress_frame_count
• v4l2-tracer: get decoded bytesused from DQBUF
• v4l2-tracer: create an option to trace userspace args
• v4l2-tracer: stop retracing failed ioctls
• v4l2-tracer: auto generate flags for DECODER_CMD

Dikshita Agarwal (1):

• v4l2-compliance: Add handling for QC08C and QC10C format

Gregor Jasny (4):

• buildsystem: Start v4l-utils 1.25.0 development cycle
• build: conditionally retrieve Git repo information
• build: do not fall back to libbpf header lookup
• manpages: fix groff warnings

Hans Verkuil (53):

• v4l2-tracer: use s64 instead of long
• v4l2-ctl: improve --stream-sleep functionality
• v4l2-ctl: reset fps counter when using --stream-sleep with streamoff/on
• v4l2-ctl: support random sleep times
• cec-ctl: store state changes in pin file
• configure.ac: fix gconv directory search
• v4l2-ctl: improve --stream-sleep
• sync-with-kernel.sh: regenerate utils/keytable/rc_keymaps/meson.build
• .gitignore: add back '*.pc' pattern
• v4l-utils: sync with upstream media staging kernel.
• gen_dvb_structs.pl: drop copy of dvb-frontend.h
• cec-ctl.1.in: clarify that you configure *your* device
• utils/libcecutil: drop spurious dep_libv4lconvert
• cec-ctl: add --test-random-power-states stress test
• cec/v4l2-compliance, cec-follower: use FILE_NAME if available
• v4l2-tracer: add quotes to -DLIBTRACER_PATH="@0@"
• v4l2-ctl: show field value in print_concise_buffer()
• cec-ctl: rename power-cycle to standby-wakeup-cycle
• v4l-utils: sync with latest media staging tree
• cec-ctl: always log timestamp in show_msg if not-OK
• Update old email address
• cec-compliance: get_power_status(): fix valid RX test
• cec-compliance: get_power_status(): check cec_msg_status_is_abort
• v4l-utils: libdvbv5: fix doxygen warnings
• libcecutil: fix performance inefficiencies
• lib/libdvbv5/dvb-file.c: check for valid entry pointer
• media-ctl: 1 -> 1ULL
• v4l2-ctl: add missing > in aspect option usage message
• v4l2-ctl: fix handling the premul-alpha sub-option
• v4l2-ctl: improve --silent support
• cec-ctl: add hpd-may-be-low suboption for the CEC tests
• cec-ctl.1.in: for hpd-may-be-low option: <0,1> -> <0/1>
• test-media: cec-pwr enables cec variable as well
• v4l2-ctl/compliance: add include cstdint
• test-media: log utils versions
• cec-follower: add --exclusive option
• common/media-info: add MEDIA_ENT_F_PROC_VIDEO_ISP
• common/media-info: fail for unknown entity function values
• sync-with-kernel.sh: don't filter V4L2_PIX_FMT_HEVC_SLICE
• v4l-utils: sync with latest kernel headers
• v4l2-ctl: add support for AV1 stateless control types
• v4l2-compliance: support V4L2_PIX_FMT_AV1_FRAME
• v4l2-compliance: pass media_fd when walking topology
• test-media: 'mc' argument didn't select vidtv
• test-media: use -m instead of -M for vicodec and vidtv
• README.md: drop qt5-default, add libsdl2-dev libbpf-dev llvm clang
• v4l2-ctl: fix alignment meta formats usage message
• v4l2-ctl.1.in: add missing --help-meta
• v4l2-compliance: improve error message
• v4l-utils: sync with latest kernel headers
• v4l-utils: sync with latest kernel headers
• v4l2-info.cpp: fix _SUPPORTS_MAX_NUM_BUFFERS description
• v4l-utils: sync with latest kernel headers

Jorge Maidana (1):

• qv4l2: fix SDR format error message

Laurent Pinchart (3):

• Drop autoconf/automake support
• meson: Fix libbpf detection
• meson: Fix install location of doxygen's man pages

Mauro Carvalho Chehab (4):

• libdvbv5: dvb-scan: fix DVB-S2 checks for DVB-S tuning
• meson.build: backport it to version 0.56
• v4l-utils.spec.in: update it to work with meson
• meson: make it backward-compatible with version 0.54

Michael Tretter (1):

• v4l2-compliance: Add gadget. as bus_info prefix

Nicolas Dufresne (1):

• v4l2-tracer: Fix libv4l2tracer.so loader

Paul Kocialkowski (1):

• v4l2-compliance: codecs: Add stateless (TRY_)DECODER_CMD tests

Peter Seiderer (19):

• meson: re-enable qv4l2 without Qt OpenGL support
• qv4l2: remove leagcy alsa_stream.h include (ENABLE_ALSA protected)
• qv4l2: fix qmake project file
• qv4l2: update qmake project file for Qt6 (core5compat module)
• qv4l2: fix Qt6 compile (QDesktopWidget: No such file or directory)
• qv4l2: fix Qt6 compile (QHBoxLayout/QVBoxLayout has no member setMargin)
• qv4l2: fix Qt6 compile (ambiguous overload for operator!=)
• qv4l2: fix Qt6 compile (missing QActionGroup header)
• qv4l2: fix Qt6 compile (no matching function for call to QString::split(QRegExp))
• qv4l2: fix Qt6 warnings (QKeyCombination operator+ is deprecated)
• qv4l2: fix Qt6 warning (QMenu::addAction() is deprecated)
• qvidcap: fix qmake project file
• v4l2-tracer: fix trace path name creation
• v4l2-tracer: wrap open64/mmap64 functions only if linux && GLIBC
• libv4l1/libv4l2/v4l2-tracer: use common meson c_args/cpp_args to disable transparent large file support
• qv4l2: remove unused local variables 'QString what'
• qv4l2: enable Qt6 compile with Qt OpenGL support
• qvidcap: fix v4l2_convert_hook (add PRE_TARGETDEPS)
• qvidcap: enable Qt6 compile with Qt OpenGL support

Sakari Ailus (1):

• utils: libv4l2subdev: Set stream for g_selection

Sean Young (2):

• keytable: open lirc for read/write for attaching/detaching bpf programs
• ir-ctl: fix sharp encoding

Tomi Valkeinen (9):

• meson: Use -include to include config.h instead of -I.
• v4l2-ctl: Improve sub-device options help text
• v4l2-ctl: Add routing and streams support
• media-ctl: Add support for routes and streams
• v4l2-ctl/compliance: Add routing and streams multiplexed streams
• v4l2-ctl/compliance: Add simple routing test
• media-ctl: Check for Streams API support
• utils/common: Set V4L2_SUBDEV_CLIENT_CAP_STREAMS for subdevs
• v4l2-ctl: Check for Streams API support

Vince Ricosti (1):

• keytable: fix repeat formatting

[Tim Tassonis]

Seems not too difficult. This worked fine:

mkdir build
cd build || exit
meson setup --prefix=/usr -Ddoxygen-doc=disabled --buildtype=release ..

ninja || exit
DESTDIR=$DESTDIR ninja install

cd ..

[Xi Ruoyao]

Please be careful doing this. This package overwrites /usr/lib/gconv/gconv-modules (from Glibc) and breaks iconv.

I'll send a mail to upstream for complaining.

[Xi Ruoyao]

​https://lore.kernel.org/linux-media/3ffb1568a9ff6c0b6f5424de3a0fafb24e7b3ac0.camel@xry111.site/

[Tim Tassonis]

Yeah, I saw that, too, my little package manager prevented this hower.

Specifiying

-Dgconv=disabled

will fix this. Shall I wait for upstream, or just add that to the instructions?

[Bruce Dubbs]

Add it to the instructions with a comment about it in the xml.

[Tim Tassonis]

Fixed in commit dfd3e911fe

[Douglas R. Reno]

Hi Tim,

I'm taking a look at this update at the moment and wanted to bring a few things up.

Can you reformat the 'meson setup' line to be similar to other pages? I was thinking we could do something like

meson setup --prefix=/usr          \
            --buildtype=release    \
            -Dgconv=disabled       \
            -Ddoxygen-doc=disabled .. &&
ninja

Later in the page I noticed the addition of

If you also wish to install the contrib programs, add:

for prog in sdlcam  v4l2gl  v4l2grab
do
        cp -v contrib/test/$prog $DESTDIR/usr/bin/.
done

When looking at my build tree, I don't see sdlcam as being compiled:

renodr [ /sources/v4l-utils-1.26.0/v4l-utils-1.26.0/build/contrib/test ]$ ls -l
total 368
-rwxrwxr-x 1 renodr renodr 26144 Dec  1 00:18 capture-example
drwxrwxr-x 2 renodr renodr  4096 Dec  1 00:18 capture-example.p
-rwxrwxr-x 1 renodr renodr 35168 Dec  1 00:18 driver-test
drwxrwxr-x 2 renodr renodr  4096 Dec  1 00:18 driver-test.p
-rwxrwxr-x 1 renodr renodr 37304 Dec  1 00:18 ioctl-test
drwxrwxr-x 2 renodr renodr  4096 Dec  1 00:18 ioctl-test.p
-rwxrwxr-x 1 renodr renodr 39520 Dec  1 00:18 mc-nextgen-test
drwxrwxr-x 2 renodr renodr  4096 Dec  1 00:18 mc-nextgen-test.p
-rwxrwxr-x 1 renodr renodr 40600 Dec  1 00:18 pixfmt-test
drwxrwxr-x 2 renodr renodr  4096 Dec  1 00:18 pixfmt-test.p
-rwxrwxr-x 1 renodr renodr 20944 Dec  1 00:18 sliced-vbi-detect
drwxrwxr-x 2 renodr renodr  4096 Dec  1 00:18 sliced-vbi-detect.p
-rwxrwxr-x 1 renodr renodr 21472 Dec  1 00:18 sliced-vbi-test
drwxrwxr-x 2 renodr renodr  4096 Dec  1 00:18 sliced-vbi-test.p
-rwxrwxr-x 1 renodr renodr 21144 Dec  1 00:18 stress-buffer
drwxrwxr-x 2 renodr renodr  4096 Dec  1 00:18 stress-buffer.p
-rwxrwxr-x 1 renodr renodr 27096 Dec  1 00:18 v4l2gl
drwxrwxr-x 2 renodr renodr  4096 Dec  1 00:18 v4l2gl.p
-rwxrwxr-x 1 renodr renodr 44168 Dec  1 00:18 v4l2grab
drwxrwxr-x 2 renodr renodr  4096 Dec  1 00:18 v4l2grab.p

Do you have sdl2_image on your system? I think this might be resulting in this utility being built on your system, but not on mine (since sdl2_image isn't installed and it's not in the book):

Run-time dependency libbpf found: NO (tried pkgconfig and cmake)
Run-time dependency sdl2 found: YES 2.28.5
Run-time dependency sdl2_image found: NO (tried pkgconfig and cmake)
Has header "SDL2/SDL_image.h" : NO

That instruction block will need a bit of work as well. There is a tab character in there rather than spaces, and the "$DESTDIR/usr/bin/." text should be replaced with "/usr/bin"

Since we're documenting installing the contrib utlities now too, we should probably add those to the list of installed programs and add short descriptions for them

sdl2_image should be added as an optional external dependency as well

Thank you for working on this!

[Tim Tassonis]

Hi Douglas

Ok, will do the re-formatting stuff.

About the contrib stuff: Yes, I have sdl2_image installed, will document that. I actually was most interested in the v4l2grab, as it allows to shoot single pictures with a webcam.

We can also leave the contrib stuff, if nobody wants those?