[Buildroot] [PATCH v1 2/2] package/libcamera-apps: new package

[Peter Seiderer <ps.report@gmx.net>]

Hello Thomas,

On Sun, 31 Jan 2021 23:20:48 +0100, Thomas Petazzoni <thomas.petazzoni@bootlin.com> wrote:

> Hello Peter,
>
> On Sat, 30 Jan 2021 00:04:18 +0100
> Peter Seiderer <ps.report@gmx.net> wrote:
>
> >  DEVELOPERS                                    |  1 +
> >  package/Config.in                             |  1 +
> >  ...afe-host-include-path-for-libdrm-use.patch | 29 ++++++++++
> >  ...unrecognized-gcc-command-line-option.patch | 32 ++++++++++
> >  ...ra_vid-fix-getline-call-needs-size_t.patch | 37 ++++++++++++
> >  ..._still-fix-getline-call-needs-size_t.patch | 35 +++++++++++
> >  ...-libcamera_app-fix-int64_t-constants.patch | 38 ++++++++++++
> >  ...006-cmake-fix-linking-with-exif-jpeg.patch | 47 +++++++++++++++
> >  .../0007-cmake-add-install-target.patch       | 24 ++++++++
> >  ...e-no-need-to-link-against-ipa_rpi.so.patch | 58 +++++++++++++++++++
>
> Loooots of patches. I suppose you submitted them upstream already ?

Yes, see [1]...., and more patches to come to fix test-pkg failures...

>
> > diff --git a/package/libcamera-apps/Config.in b/package/libcamera-apps/Config.in
> > new file mode 100644
> > index 0000000000..482e1186a0
> > --- /dev/null
> > +++ b/package/libcamera-apps/Config.in
> > @@ -0,0 +1,33 @@
> > +config BR2_PACKAGE_LIBCAMERA_APPS
> > +	bool "libcamera-apps"
> > +	depends on BR2_PACKAGE_LIBCAMERA_ARCH_SUPPORTS # libcamera
> > +	depends on BR2_INSTALL_LIBSTDCPP # libcamera/boost
> > +	depends on BR2_TOOLCHAIN_HAS_THREADS # libcamera/boost/libdrm
> > +	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_7 # C++17/libcamera
> > +	depends on !BR2_STATIC_LIBS # gnutls/libcamera
> > +	depends on BR2_USE_WCHAR # gnutls/libcamera/boost
> > +	depends on BR2_PACKAGE_XORG7
> > +	depends on BR2_PACKAGE_HAS_LIBEGL || BR2_PACKAGE_HAS_LIBGL # libepoxy
>
> To be honest, I am wondering if we shouldn't do a "depends on
> BR2_PACKAGE_LIBCAMERA" to simplify this a bit. Indeed, if you want
> libcamera-apps, most likely you know you should enable libcamera as
> well.

The experienced buildroot user will do...., but the average RPi user?

>
> > +	select BR2_PACKAGE_XLIB_LIBX11
>
> It really only works with X11 ? A new project in 2021 is X11 only ?

Yes, see [2]:

	find_package(X11 REQUIRED)

But maybe time to ask/suggest upstream for an X11 enable/disable option...

>
> > +	select BR2_PACKAGE_LIBEPOXY
> > +	select BR2_PACKAGE_LIBDRM
> > +	select BR2_PACKAGE_BOOST
> > +        select BR2_PACKAGE_BOOST_PROGRAM_OPTIONS
>
> Indentation issue.

Ups, will fix...

>
> > +	select BR2_PACKAGE_LIBEXIF
> > +	select BR2_PACKAGE_JPEG
> > +	select BR2_PACKAGE_TIFF
> > +	select BR2_PACKAGE_LIBPNG
> > +	select BR2_PACKAGE_LIBCAMERA
>
> Alphabetic ordering is not correct for this long list of selects.

Ups, still in the 'developer' ordering taken from the CMakeLists.txt
file, will fix on next patch iteration...

>
> > --- /dev/null
> > +++ b/package/libcamera-apps/libcamera-apps.hash
> > @@ -0,0 +1,2 @@
> > +# Locally computed
> > +sha256  bf8589f560796327088e7172cf36942c668a3380f0bd6220238ea2b932e40faa  libcamera-apps-b1ca8997530f1f0290b291a956de359f2d4ce3e2-br1.tar.gz
> > diff --git a/package/libcamera-apps/libcamera-apps.mk b/package/libcamera-apps/libcamera-apps.mk
> > new file mode 100644
> > index 0000000000..5ab2bf1bd6
> > --- /dev/null
> > +++ b/package/libcamera-apps/libcamera-apps.mk
> > @@ -0,0 +1,24 @@
> > +################################################################################
> > +#
> > +# libcamera-apps
> > +#
> > +################################################################################
> > +
> > +LIBCAMERA_APPS_SITE = https://github.com/raspberrypi/libcamera-apps.git
> > +LIBCAMERA_APPS_VERSION = b1ca8997530f1f0290b291a956de359f2d4ce3e2
>
> Use the github macro ?

Yes, will do...

>
> > +LIBCAMERA_APPS_SITE_METHOD = git
> > +LIBCAMERA_APPS_LICENSE = BSD-2-Clause
>
> No license file ?

No (only a hint/link in the README.md file and SPDX license identifiers
in the source files), will ask upstream...

>
> Thanks!
>
> Thomas

Regards,
Peter

[1] https://github.com/raspberrypi/libcamera-apps/pull/1
[2] https://github.com/raspberrypi/libcamera-apps/blob/main/CMakeLists.txt#L39