diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index d6252b8..a8af654 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,14 +1,19 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     package="com.github.xch168.ffmpeg.invoker.demo">
 
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
-        android:theme="@style/AppTheme">
+        android:theme="@style/AppTheme"
+        tools:ignore="AllowBackup">
         <activity android:name=".MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -16,6 +21,7 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity android:name=".FFmpegTestActivity"/>
     </application>
 
 </manifest>
\ No newline at end of file
diff --git a/app/src/main/java/com/github/xch168/ffmpeg/invoker/demo/FFmpegTestActivity.java b/app/src/main/java/com/github/xch168/ffmpeg/invoker/demo/FFmpegTestActivity.java
new file mode 100644
index 0000000..e74b1b2
--- /dev/null
+++ b/app/src/main/java/com/github/xch168/ffmpeg/invoker/demo/FFmpegTestActivity.java
@@ -0,0 +1,72 @@
+package com.github.xch168.ffmpeg.invoker.demo;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Environment;
+import android.os.Looper;
+import android.view.View;
+import android.widget.Toast;
+
+import com.github.xch168.ffmpeg.invoker.FFmpegInvoker;
+
+import java.io.File;
+
+public class FFmpegTestActivity extends AppCompatActivity {
+    private String videoPath = "/storage/emulated/0/DCIM/Camera/fb639313f7f3d58cc793f20095439c88.mp4";
+
+    private FFmpegInvoker.Callback mCallback = new FFmpegInvoker.Callback() {
+        @Override
+        public void onSuccess() {
+            Looper.prepare();
+            Toast.makeText(FFmpegTestActivity.this, "处理成功", Toast.LENGTH_SHORT).show();
+            Looper.loop();
+        }
+
+        @Override
+        public void onFailure() {
+            Looper.prepare();
+            Toast.makeText(FFmpegTestActivity.this, "处理失败", Toast.LENGTH_SHORT).show();
+            Looper.loop();
+        }
+
+        @Override
+        public void onProgress(float progress) {
+
+        }
+    };
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_ffmpeg_test);
+    }
+
+    public static void open(Context context) {
+        Intent intent = new Intent(context, FFmpegTestActivity.class);
+        context.startActivity(intent);
+    }
+
+    public void cutVideo(View view) {
+        String savePath = getSaveDir() + "out.mp4";
+        String cmd = "ffmpeg -y -ss 1 -t 100 -accurate_seek -i " + videoPath + " -codec copy " + savePath;
+        FFmpegInvoker.exec(cmd.split(" "), 100, mCallback);
+    }
+
+    public void extractFrame(View view) {
+        String savePath = getSaveDir() + "out.png";
+        String cmd = "ffmpeg -ss 10 -i " + videoPath + " -vframes 1 -y " + savePath;
+        FFmpegInvoker.exec(cmd.split(" "), 100, mCallback);
+    }
+
+    public static String getSaveDir() {
+        String savePath = Environment.getExternalStorageDirectory().getPath() + "/FFmpegInvoker/";
+        File file = new File(savePath);
+        if (!file.exists()) {
+            file.mkdirs();
+        }
+        return savePath;
+    }
+}
diff --git a/app/src/main/java/com/github/xch168/ffmpeg/invoker/demo/MainActivity.java b/app/src/main/java/com/github/xch168/ffmpeg/invoker/demo/MainActivity.java
index b4458c1..7075c4a 100644
--- a/app/src/main/java/com/github/xch168/ffmpeg/invoker/demo/MainActivity.java
+++ b/app/src/main/java/com/github/xch168/ffmpeg/invoker/demo/MainActivity.java
@@ -60,4 +60,8 @@ public class MainActivity extends AppCompatActivity {
         }
         return configInfoBuilder.toString();
     }
+
+    public void toTestFFmpeg(View view) {
+        FFmpegTestActivity.open(this);
+    }
 }
diff --git a/app/src/main/res/layout/activity_ffmpeg_test.xml b/app/src/main/res/layout/activity_ffmpeg_test.xml
new file mode 100644
index 0000000..6c9b019
--- /dev/null
+++ b/app/src/main/res/layout/activity_ffmpeg_test.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context="com.github.xch168.ffmpeg.invoker.demo.FFmpegTestActivity">
+
+    <Button
+        android:id="@+id/btn_cut"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintLeft_toLeftOf="parent"
+        android:text="剪辑"
+        android:onClick="cutVideo"/>
+
+    <Button
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        app:layout_constraintTop_toTopOf="@+id/btn_cut"
+        app:layout_constraintLeft_toRightOf="@+id/btn_cut"
+        android:layout_marginLeft="10dp"
+        android:text="提取帧"
+        android:onClick="extractFrame"/>
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index d28a3c3..2e2173d 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -6,6 +6,14 @@
     android:layout_height="match_parent"
     tools:context="com.github.xch168.ffmpeg.invoker.demo.MainActivity">
 
+    <Button
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintLeft_toLeftOf="parent"
+        android:text="进入测试"
+        android:onClick="toTestFFmpeg"/>
+
     <TextView
         android:id="@+id/tv_cpu_abi"
         android:layout_width="wrap_content"