initial buildroot for linux 5.15

package/gstreamer1/gst1-python/Config.in

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+config BR2_PACKAGE_GST1_PYTHON
+	bool "gst1-python"
+	depends on BR2_USE_MMU # libglib2, gobject-introspection
+	depends on BR2_PACKAGE_GOBJECT_INTROSPECTION_ARCH_SUPPORTS # gobject-introspection
+	depends on BR2_HOST_GCC_AT_LEAST_8 # gobject-introspection -> host-qemu
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # gobject-introspection
+	depends on BR2_TOOLCHAIN_USES_GLIBC # gobject-introspection
+	depends on BR2_PACKAGE_PYTHON3 # gobject-introspection
+	select BR2_PACKAGE_GOBJECT_INTROSPECTION
+	select BR2_PACKAGE_GST1_PLUGINS_BASE
+	select BR2_PACKAGE_LIBGLIB2
+	select BR2_PACKAGE_PYTHON_GOBJECT
+	help
+	  GStreamer python overrides for the gobject-introspection-based
+	  pygst bindings.
+
+	  https://gstreamer.freedesktop.org/modules/gst-python.html
+
+comment "gst1-python needs python3"
+	depends on !BR2_PACKAGE_PYTHON3
+
+comment "gst1-python needs a glibc toolchain, gcc >= 4.9, host gcc >= 8"
+	depends on BR2_USE_MMU
+	depends on BR2_PACKAGE_GOBJECT_INTROSPECTION_ARCH_SUPPORTS
+	depends on !BR2_TOOLCHAIN_USES_GLIBC || \
+		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || !BR2_HOST_GCC_AT_LEAST_8

package/gstreamer1/gst1-python/gst1-python.hash

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+# From https://gstreamer.freedesktop.org/src/gst-python/gst-python-1.18.5.tar.xz.sha256sum
+sha256  533685871305959d6db89507f3b3aa6c765c2f2b0dacdc32c5a6543e72e5bc52  gst-python-1.18.5.tar.xz
+sha256  ea3ad127610e5ded2210b3a86a46314f2b3b28e438eccffdae19a4d6fbcdb0c2  COPYING

package/gstreamer1/gst1-python/gst1-python.mk

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+################################################################################
+#
+# gst1-python
+#
+################################################################################
+
+GST1_PYTHON_VERSION = 1.18.5
+GST1_PYTHON_SOURCE = gst-python-$(GST1_PYTHON_VERSION).tar.xz
+GST1_PYTHON_SITE = https://gstreamer.freedesktop.org/src/gst-python
+GST1_PYTHON_INSTALL_STAGING = YES
+GST1_PYTHON_LICENSE_FILES = COPYING
+GST1_PYTHON_LICENSE = LGPL-2.1+
+
+GST1_PYTHON_DEPENDENCIES = \
+	gst1-plugins-base \
+	gstreamer1 \
+	python-gobject
+
+# A sysconfigdata_name must be manually specified or the resulting .so
+# will have a x86_64 prefix, which causes "from gi.repository import Gst"
+# to fail. A pythonpath must be specified or the host python path will be
+# used resulting in a "not a valid python" error.
+GST1_PYTHON_CONF_ENV += \
+	_PYTHON_SYSCONFIGDATA_NAME=$(PKG_PYTHON_SYSCONFIGDATA_NAME) \
+	PYTHONPATH=$(PYTHON3_PATH)
+
+# Due to the CONF_ENV options, libpython-dir must be set manually
+# or else the error: "Python dynamic library path could not be determined"
+# occurs. We set the libpython-dir to /usr/lib as this path is hard-coded
+# into the resulting .so file as /usr/lib/python3.$(PYTHON3_VERSION_MAJOR).so.
+# Because we provide PYTHONPATH=$(PYTHON3_PATH) above, the logic in the meson
+# file uses the above python path to determine if /usr/lib/ has the proper .so
+# file. Because Buildroot provides the appropriate paths, the meson file finds
+# the correct .so file, and the resulting compiled library has the appropriate
+# path of /usr/lib/python3.$(PYTHON3_VERSION_MAJOR).so
+GST1_PYTHON_CONF_OPTS += \
+	-Dlibpython-dir=/usr/lib/
+
+$(eval $(meson-package))