Add libx264 library file

Signed-off-by: Leo Ma <begeekmyfriend@gmail.com>

library/build.gradle

@@ -21,6 +21,11 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
+    externalNativeBuild {
+        ndkBuild {
+            path 'src/main/cpp/Android.mk'
+        }
+    }
 }
 
 dependencies {

library/src/main/cpp/libx264/x264_config.h

+#define X264_BIT_DEPTH     8
+#define X264_GPL           1
+#define X264_INTERLACED    1
+#define X264_CHROMA_FORMAT 0
+#define X264_VERSION ""
+#define X264_POINTVER "0.148.x"