app/build.gradle

 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion "25.0.2"
+    compileSdkVersion 26
+    buildToolsVersion "26.0.2"
 
     defaultConfig {
         applicationId "net.ossrs.yasea.demo"
-        minSdkVersion 16
+        minSdkVersion 21
         targetSdkVersion 22
         versionCode 1
         versionName "1.9"
         ndk {
-            abiFilters "armeabi-v7a", "x86"
+            abiFilters "armeabi-v7a", "arm64-v8a", "x86"
         }
     }
     buildTypes {
@@ -23,8 +23,8 @@ android {
 }
 
 dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
+    compile fileTree(dir: 'libx264.libs', include: ['*.jar'])
     testCompile 'junit:junit:4.12'
-    compile 'com.android.support:appcompat-v7:25.3.1'
+    compile 'com.android.support:appcompat-v7:26.1.0'
     compile project(path: ':library')
 }

build.gradle

@@ -3,9 +3,10 @@
 buildscript {
     repositories {
         jcenter()
+        google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -15,6 +16,7 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        google()
     }
 }
 

library/build.gradle

-apply plugin: 'com.android.library'
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
 
-android {
-    compileSdkVersion 25
-    buildToolsVersion "25.0.2"
-
-    defaultConfig {
-        minSdkVersion 16
-        targetSdkVersion 22
-        versionCode 1
-        versionName "1.9"
-
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
-        ndk {
-            abiFilters "armeabi-v7a", "x86"
-        }
+buildscript {
+    repositories {
+        jcenter()
+        google()
     }
-    buildTypes {
-        release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-        }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.0.0'
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
     }
-    externalNativeBuild {
-        ndkBuild {
-            path 'src/main/cpp/Android.mk'
-        }
+}
+
+allprojects {
+    repositories {
+        jcenter()
+        google()
     }
 }
 
-dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
-    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
-        exclude group: 'com.android.support', module: 'support-annotations'
-    })
-    compile 'com.android.support:appcompat-v7:25.3.1'
-    testCompile 'junit:junit:4.12'
+task clean(type: Delete) {
+    delete rootProject.buildDir
 }

library/src/main/cpp/Application.mk

-APP_ABI := armeabi-v7a x86
-APP_PLATFORM := android-19
+APP_ABI := armeabi-v7a arm64-v8a x86
+APP_PLATFORM := android-21

library/src/main/cpp/libenc/Android.mk

@@ -8,7 +8,5 @@ LOCAL_CFLAGS    :=
 LOCAL_C_INCLUDES += $(LOCAL_PATH)/../libyuv/include $(LOCAL_PATH)/../libx264
 LOCAL_STATIC_LIBRARIES := libx264
 LOCAL_SHARED_LIBRARIES := libyuv
-LOCAL_DISABLE_FORMAT_STRING_CHECKS := true
-LOCAL_DISABLE_FATAL_LINKER_WARNINGS := true
 include $(BUILD_SHARED_LIBRARY)

library/src/main/cpp/libx264/Android.mk

@@ -7,6 +7,10 @@ ifeq ($(TARGET_ARCH_ABI),armeabi-v7a)
     LOCAL_SRC_FILES := libs/armeabi-v7a/libx264.a
 endif
+ifeq ($(TARGET_ARCH_ABI),arm64-v8a)
+    LOCAL_SRC_FILES := libs/arm64-v8a/libx264.a
+endif
+
 ifeq ($(TARGET_ARCH_ABI),x86)
     LOCAL_SRC_FILES := libs/x86/libx264.a
 endif

library/src/main/cpp/libx264/android_build_armeabi_v7a.sh

 #!/bin/sh
 ANDROID_NDK=$HOME/Android/Sdk/ndk-bundle
-SYSROOT=$ANDROID_NDK/platforms/android-19/arch-arm
+SYSROOT=$ANDROID_NDK/platforms/android-21/arch-arm
 CROSS_PREFIX=$ANDROID_NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-
 EXTRA_CFLAGS="-march=armv7-a -mfloat-abi=softfp -mfpu=neon -D__ANDROID__ -D__ARM_ARCH_7__ -D__ARM_ARCH_7A__"
 EXTRA_LDFLAGS="-nostdlib"

library/src/main/cpp/libx264/android_build_x86.sh

 #!/bin/sh
 ANDROID_NDK=$HOME/Android/Sdk/ndk-bundle
-SYSROOT=$ANDROID_NDK/platforms/android-19/arch-x86
+SYSROOT=$ANDROID_NDK/platforms/android-21/arch-x86
 CROSS_PREFIX=$ANDROID_NDK/toolchains/x86-4.9/prebuilt/linux-x86_64/bin/i686-linux-android-
 EXTRA_CFLAGS="-D__ANDROID__ -D__i686__"
 EXTRA_LDFLAGS="-nostdlib"