gstreamer: add package (#2980)

* gstreamer: add package

* try shared glib

* fix includedirs

* fix libiconv

* fix macosx libintl

* fix meson option

* fix windows setup

* add pkgconf

* Update xmake.lua

packages/g/gstreamer/xmake.lua

@@ -0,0 +1,63 @@
+package("gstreamer")
+    set_homepage("https://gstreamer.freedesktop.org")
+    set_description("GStreamer is a development framework for creating applications like media players, video editors, streaming media broadcasters and so on")
+    set_license("LGPL-2.0-or-later")
+
+    add_urls("https://gstreamer.freedesktop.org/src/gstreamer/gstreamer-$(version).tar.xz", {alias = "home"})
+
+    add_versions("home:1.24.2", "9cafdd23bd180f1681c56cd3a6879a8497ccf24da6f422a6b6f356fa074a8481")
+
+    add_configs("tools", {description = "Build tools.", default = false, type = "boolean"})
+    add_configs("libunwind", {description = "Use libunwind to generate backtraces", default = false, type = "boolean"})
+
+    if is_plat("linux") then
+        add_extsources("pacman::gstreamer", "apt::libgstreamer1.0-dev")
+    elseif is_plat("macosx") then
+        add_extsources("brew::gstreamer")
+    elseif is_plat("mingw") and is_subhost("msys") then
+        add_extsources("pacman::gstreamer")
+    end
+
+    add_deps("meson", "ninja")
+    if is_plat("windows") then
+        add_deps("pkgconf", "winflexbison")
+    else
+        add_deps("flex", "bison")
+    end
+    add_deps("glib")
+
+    add_includedirs("include", "include/gstreamer-1.0")
+
+    on_load(function (package)
+        if package:config("libunwind") then
+            package:add("deps", "libunwind")
+        end
+        if not package:config("shared") then
+            package:add("defines", "GST_STATIC_COMPILATION")
+        end
+    end)
+
+    on_install("windows", "macosx", "linux", "cross", function (package)
+        local configs = {
+            "-Dexamples=disabled",
+            "-Dbenchmarks=disabled",
+            "-Dtests=disabled",
+        }
+        table.insert(configs, "-Dgst_debug=" .. (package:is_debug() and "true" or "false"))
+        table.insert(configs, "-Ddefault_library=" .. (package:config("shared") and "shared" or "static"))
+        table.insert(configs, "-Dlibunwind=" .. (package:config("libunwind") and "enabled" or "disabled"))
+        table.insert(configs, "-Dtools=" .. (package:config("tools") and "enabled" or "disabled"))
+
+        local packagedeps = {}
+        if not package:dep("glib"):config("shared") then
+            table.insert(packagedeps, "libiconv")
+        end
+        if package:is_plat("windows", "macosx") then
+            table.insert(packagedeps, "libintl")
+        end
+        import("package.tools.meson").install(package, configs, {packagedeps = packagedeps})
+    end)
+
+    on_test(function (package)
+        assert(package:has_cfuncs("gst_init", {includes = "gst/gst.h"}))
+    end)