vmaf: support android (#5887)

* vmaf: support android

* add check

* check ndk api level

packages/v/vmaf/xmake.lua

@@ -33,6 +33,18 @@ package("vmaf")
 
     add_deps("meson", "ninja")
 
+    if on_check then
+        on_check("android", function (package)
+            local ndk = package:toolchain("ndk")
+            local ndkver = ndk:config("ndkver")
+            assert(ndkver and tonumber(ndkver) > 22, "package(vmaf) require ndk version > 22")
+            if package:is_arch("armeabi-v7a") then
+                local ndk_sdkver = ndk:config("ndk_sdkver")
+                assert(ndk_sdkver and tonumber(ndk_sdkver) > 21, "package(vmaf/armeabi-v7a) require ndk api level > 21")
+            end
+        end)
+    end
+
     on_load(function (package)
         if package:config("asm") or package:config("avx512") then
             package:add("deps", "nasm")
@@ -47,7 +59,12 @@ package("vmaf")
         end
     end)
 
-    on_install("!windows and !android", function (package)
+    on_install("!windows", function (package)
+        os.cd("libvmaf")
+        if not package:config("tools") then
+            io.replace("meson.build", [[subdir('tools')]], "", {plain = true})
+        end
+
         local configs = {"-Denable_tests=false", "-Denable_docs=false"}
         table.insert(configs, "-Ddefault_library=" .. (package:config("shared") and "shared" or "static"))
 
@@ -57,11 +74,6 @@ package("vmaf")
         table.insert(configs, "-Denable_float=" .. (package:config("float") and "true" or "false"))
         table.insert(configs, "-Denable_cuda=" .. (package:config("cuda") and "true" or "false"))
         table.insert(configs, "-Denable_nvtx=" .. (package:config("nvtx") and "true" or "false"))
-
-        os.cd("libvmaf")
-        if not package:config("tools") then
-            io.replace("meson.build", [[subdir('tools')]], "", {plain = true})
-        end
         import("package.tools.meson").install(package, configs)
     end)