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plugin: Add clapper GStreamer plugin

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Add new GStreamer plugin with custom video sink for Clapper video player.

The main difference is that unlike the old one, this does not operate using `GtkGLArea`
anymore, but processes and displays `GdkTextures` directly through `GtkPicture` widget.
Also this one is installed like any other GStreamer plugin, thus can be used via
`gst-launch-1.0` binary or even by other GTK4 apps if they wish to integrate it.

In order to not depend on GL stuff at build time, this plugin uses seperate GModules
called "importers" in order to import different kind of memories into GdkTexture. This
allows expanding its capabilities further then we were able to do before.
This commit is contained in:
Rafostar
2022-05-01 16:48:23 +02:00
committed by Rafał Dzięgiel
parent f771e0320c
commit 044710f97e
17 changed files with 2824 additions and 18 deletions
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24
lib/meson.build vendored
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@@ -1,5 +1,5 @@
glib_req = '>= 2.56.0'
gst_req = '>= 1.18.0'
glib_req = '>= 2.68.0'
gst_req = '>= 1.20.0'
api_version = '1.0'
libversion = meson.project_version()
@@ -42,10 +42,6 @@ endif
# Symbol visibility
if cc.get_id() == 'msvc'
export_define = '__declspec(dllexport) extern'
elif cc.has_argument('-fvisibility=hidden')
add_project_arguments('-fvisibility=hidden', language: 'c')
add_project_arguments('-fvisibility=hidden', language: 'cpp')
export_define = 'extern __attribute__ ((visibility ("default")))'
else
export_define = 'extern'
endif
@@ -132,7 +128,7 @@ cdata.set('SIZEOF_SHORT', cc.sizeof('short'))
cdata.set('SIZEOF_VOIDP', cc.sizeof('void*'))
cdata.set_quoted('VERSION', libversion)
cdata.set_quoted('PACKAGE', 'gst-plugins-clapper')
cdata.set_quoted('PACKAGE', 'clapper')
cdata.set_quoted('PACKAGE_VERSION', libversion)
cdata.set_quoted('PACKAGE_BUGREPORT', 'https://github.com/Rafostar/clapper/issues/new')
cdata.set_quoted('PACKAGE_NAME', 'GStreamer Clapper Libs')
@@ -184,7 +180,7 @@ foreach extra_arg : warning_flags
endif
endforeach
cdata.set_quoted('GST_PACKAGE_NAME', 'GStreamer Plugins Clapper')
cdata.set_quoted('GST_PACKAGE_NAME', 'gst-plugin-clapper')
cdata.set_quoted('GST_PACKAGE_ORIGIN', 'https://github.com/Rafostar/clapper')
# Mandatory GST deps
@@ -251,21 +247,21 @@ giounix_dep = dependency('gio-unix-2.0', version: glib_req, fallback: ['glib', '
cdata.set('DISABLE_ORC', 1)
cdata.set('GST_ENABLE_EXTRA_CHECKS', get_option('devel-checks'))
cdata.set_quoted('GST_PACKAGE_RELEASE_DATETIME', 'Unknown')
configinc = include_directories('.')
libsinc = include_directories('gst')
gir = find_program('g-ir-scanner', required: true)
if not gir.found()
error('Clapper requires GI bindings to be compiled')
endif
gir = find_program('g-ir-scanner')
gir_init_section = ['--add-init-section=extern void gst_init(gint*,gchar**);' + \
'g_setenv("GST_REGISTRY_1.0", "@0@", TRUE);'.format(meson.current_build_dir() + '/gir_empty_registry.reg') + \
'g_setenv("GST_PLUGIN_PATH_1_0", "", TRUE);' + \
'g_setenv("GST_PLUGIN_SYSTEM_PATH_1_0", "", TRUE);' + \
'gst_init(NULL,NULL);', '--quiet'
]
gst_clapper_plugin_libdir = join_paths(get_option('prefix'), libdir, 'clapper-0.0', 'gst', 'plugin')
gst_clapper_importers_libdir = join_paths(gst_clapper_plugin_libdir, 'importers')
cdata.set_quoted('CLAPPER_SINK_IMPORTER_PATH', gst_clapper_importers_libdir)
subdir('gst')
configure_file(output: 'config.h', configuration: cdata)