I got this build error:

| Run-time dependency gstreamer-plugins-base-1.0 found: NO (tried pkgconfig and cmake)
|
| ../gst-python-1.18.0/testsuite/meson.build:32:2: ERROR: 'not-found' is not a pkgconfig dependency


This fixed it:

--- a/meta/recipes-multimedia/gstreamer/gstreamer1.0-python_1.18.0.bb
+++ b/meta/recipes-multimedia/gstreamer/gstreamer1.0-python_1.18.0.bb
@@ -9,7 +9,7 @@ SRC_URI = "https://gstreamer.freedesktop.org/src/${PNREAL}/${PNREAL}-${PV}.tar.x
 SRC_URI[md5sum] = "2d55c22fcd57cae4fad55a07019aa334"
 SRC_URI[sha256sum] = "76bfe8b85a9c4a6ddfb81874f2635fd0da38c3f39d9d2a0b175213218516dd45"
 
-DEPENDS = "gstreamer1.0 python3-pygobject"
+DEPENDS = "gstreamer1.0 python3-pygobject gstreamer1.0-plugins-base"
 RDEPENDS_${PN} += "gstreamer1.0 python3-pygobject"
 
 PNREAL = "gst-python"


On 18.10.20 14:09, Jose Quaresma wrote:
    * 0001-meson.build-fix-builds-with-python-3.8.patch
      Removed since these are included in 1.18.0

DEPENDS:
RDEPENDS:
 - Upstream now depends gstreamer1.0-plugins-base

Signed-off-by: Jose Quaresma <quaresma.jose@gmail.com>
---
 ...son.build-fix-builds-with-python-3.8.patch | 24 -------------------
 ....16.2.bb => gstreamer1.0-python_1.18.0.bb} | 14 +++++------
 2 files changed, 6 insertions(+), 32 deletions(-)
 delete mode 100644 meta/recipes-multimedia/gstreamer/gstreamer1.0-python/0001-meson.build-fix-builds-with-python-3.8.patch
 rename meta/recipes-multimedia/gstreamer/{gstreamer1.0-python_1.16.2.bb => gstreamer1.0-python_1.18.0.bb} (72%)

diff --git a/meta/recipes-multimedia/gstreamer/gstreamer1.0-python/0001-meson.build-fix-builds-with-python-3.8.patch b/meta/recipes-multimedia/gstreamer/gstreamer1.0-python/0001-meson.build-fix-builds-with-python-3.8.patch
deleted file mode 100644
index 053108ad50..0000000000
--- a/meta/recipes-multimedia/gstreamer/gstreamer1.0-python/0001-meson.build-fix-builds-with-python-3.8.patch
+++ /dev/null
@@ -1,24 +0,0 @@
-From 61cfd1b49dc82baf14bb36d88b6c5be7b8c3d23a Mon Sep 17 00:00:00 2001
-From: Alexander Kanavin <alex.kanavin@gmail.com>
-Date: Mon, 2 Dec 2019 18:16:41 +0100
-Subject: [PATCH] meson.build: fix builds with python 3.8
-
-Upstream-Status: Submitted [https://gitlab.freedesktop.org/gstreamer/gst-python/merge_requests/14]
-Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
----
- meson.build | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/meson.build b/meson.build
-index 1da81d5..3e0db38 100644
---- a/meson.build
-+++ b/meson.build
-@@ -24,7 +24,7 @@ pygobject_dep = dependency('pygobject-3.0', fallback: ['pygobject', 'pygobject_d
- 
- pymod = import('python')
- python = pymod.find_installation(get_option('python'))
--python_dep = python.dependency(required : true)
-+python_dep = dependency('python3-embed', required : true)
- 
- python_abi_flags = python.get_variable('ABIFLAGS', '')
- pylib_loc = get_option('libpython-dir')
diff --git a/meta/recipes-multimedia/gstreamer/gstreamer1.0-python_1.16.2.bb b/meta/recipes-multimedia/gstreamer/gstreamer1.0-python_1.18.0.bb
similarity index 72%
rename from meta/recipes-multimedia/gstreamer/gstreamer1.0-python_1.16.2.bb
rename to meta/recipes-multimedia/gstreamer/gstreamer1.0-python_1.18.0.bb
index 9e024eb9f3..f13f9c5a44 100644
--- a/meta/recipes-multimedia/gstreamer/gstreamer1.0-python_1.16.2.bb
+++ b/meta/recipes-multimedia/gstreamer/gstreamer1.0-python_1.18.0.bb
@@ -5,14 +5,12 @@ SECTION = "multimedia"
 LICENSE = "LGPLv2.1"
 LIC_FILES_CHKSUM = "file://COPYING;md5=c34deae4e395ca07e725ab0076a5f740"
 
-SRC_URI = "https://gstreamer.freedesktop.org/src/${PNREAL}/${PNREAL}-${PV}.tar.xz \
-           file://0001-meson.build-fix-builds-with-python-3.8.patch \
-           "
-SRC_URI[md5sum] = "6ac709767334d8d0a71cb4e016f6abeb"
-SRC_URI[sha256sum] = "208df3148d73d9f416d016564737585d8ea763d91201732d44b5fe688c6288a8"
-
-DEPENDS = "gstreamer1.0 python3-pygobject"
-RDEPENDS_${PN} += "gstreamer1.0 python3-pygobject"
+SRC_URI = "https://gstreamer.freedesktop.org/src/${PNREAL}/${PNREAL}-${PV}.tar.xz"
+SRC_URI[md5sum] = "2d55c22fcd57cae4fad55a07019aa334"
+SRC_URI[sha256sum] = "76bfe8b85a9c4a6ddfb81874f2635fd0da38c3f39d9d2a0b175213218516dd45"
+
+DEPENDS = "gstreamer1.0 gstreamer1.0-plugins-base python3-pygobject"
+RDEPENDS_${PN} += "gstreamer1.0 gstreamer1.0-plugins-base python3-pygobject"
 
 PNREAL = "gst-python"