视频反序倒播

视频反序倒播

README.md

@@ -18,6 +18,7 @@ android端基于FFmpeg库的使用。<br>
 - #### 视频转GIF动图
 - #### 视频添加水印
 - #### 视频画面拼接
+- #### 视频反序倒播
 - #### 图片合成视频
 - #### 视频解码播放
 - #### 本地直播推流
@@ -52,7 +53,10 @@ android端基于FFmpeg库的使用。<br>
 ![静态图片](https://github.com/xufuji456/FFmpegAndroid/blob/master/picture/filter_grid.png)
 
 视频画面拼接：
-![视频](https://github.com/xufuji456/FFmpegAndroid/blob/master/gif/horizontal.gif)
+![动态图片](https://github.com/xufuji456/FFmpegAndroid/blob/master/gif/horizontal.gif)
+
+视频倒播：
+![动态图片](https://github.com/xufuji456/FFmpegAndroid/blob/master/gif/reverse.gif)
 
 ***
 

app/src/main/AndroidManifest.xml

@@ -36,26 +36,31 @@
         <!-- 视频解码播放 -->
         <activity
             android:name=".activity.VideoPlayerActivity"
-            android:theme="@style/Theme.AppCompat.DayNight.NoActionBar"
+            android:screenOrientation="landscape"
-            android:screenOrientation="landscape" />
+            android:theme="@style/Theme.AppCompat.DayNight.NoActionBar" />
         <!-- 音视频解码播放 -->
         <activity
             android:name=".activity.MediaPlayerActivity"
-            android:theme="@style/Theme.AppCompat.DayNight.NoActionBar"
+            android:screenOrientation="landscape"
-            android:screenOrientation="landscape" />
+            android:theme="@style/Theme.AppCompat.DayNight.NoActionBar" />
         <!-- 本地推流直播 -->
-        <activity android:name=".activity.PushActivity"
+        <activity
-            android:theme="@style/Theme.AppCompat.DayNight.NoActionBar"/>
+            android:name=".activity.PushActivity"
+            android:theme="@style/Theme.AppCompat.DayNight.NoActionBar" />
         <!-- 实时推流直播 -->
         <activity
             android:name=".activity.LiveActivity"
-            android:theme="@style/Theme.AppCompat.DayNight.NoActionBar"
+            android:screenOrientation="landscape"
-            android:screenOrientation="landscape" />
+            android:theme="@style/Theme.AppCompat.DayNight.NoActionBar" />
-        <!--滤镜特效-->
+        <!-- 滤镜特效 -->
         <activity
             android:name=".activity.FilterActivity"
-            android:theme="@style/Theme.AppCompat.DayNight.NoActionBar"
+            android:screenOrientation="landscape"
-            android:screenOrientation="landscape" />
+            android:theme="@style/Theme.AppCompat.DayNight.NoActionBar" />
+        <!--视频倒播-->
+        <activity android:name=".activity.VideoReverseActivity"
+            android:screenOrientation="landscape"
+            android:theme="@style/Theme.AppCompat.DayNight.NoActionBar" />
     </application>
 
 </manifest>

app/src/main/java/com/frank/ffmpeg/activity/MainActivity.java

@@ -38,6 +38,7 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
         findViewById(R.id.btn_push).setOnClickListener(this);
         findViewById(R.id.btn_live).setOnClickListener(this);
         findViewById(R.id.btn_filter).setOnClickListener(this);
+        findViewById(R.id.btn_reverse).setOnClickListener(this);
     }
 
     @Override
@@ -65,6 +66,9 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
             case R.id.btn_filter://滤镜特效
                 intent.setClass(MainActivity.this, FilterActivity.class);
                 break;
+            case R.id.btn_reverse://视频倒播
+                intent.setClass(MainActivity.this, VideoReverseActivity.class);
+                break;
             default:
                 break;
         }

app/src/main/java/com/frank/ffmpeg/activity/VideoReverseActivity.java

@@ -0,0 +1,118 @@
+package com.frank.ffmpeg.activity;
+
+import android.annotation.SuppressLint;
+import android.os.Environment;
+import android.os.Handler;
+import android.os.Message;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.widget.LinearLayout;
+import android.widget.VideoView;
+import com.frank.ffmpeg.FFmpegCmd;
+import com.frank.ffmpeg.R;
+import com.frank.ffmpeg.util.FFmpegUtil;
+import com.frank.ffmpeg.util.FileUtil;
+import java.io.File;
+
+/**
+ * 先处理视频反序，再视频倒播
+ * Created by frank on 2018/9/12.
+ */
+
+public class VideoReverseActivity extends AppCompatActivity {
+
+    private final static String TAG = VideoReverseActivity.class.getSimpleName();
+    private final static String ROOT_PATH = Environment.getExternalStorageDirectory().getPath();
+    private final static String VIDEO_NORMAL_PATH = ROOT_PATH + File.separator + "beyond.mp4";
+    private final static String VIDEO_REVERSE_PATH = ROOT_PATH + File.separator + "reverse.mp4";
+
+    private LinearLayout loading;
+    private VideoView videoNormal;
+    private VideoView videoReverse;
+
+    private final static int MSG_PLAY = 7777;
+    @SuppressLint("HandlerLeak")
+    private Handler mHandler = new Handler(){
+        @Override
+        public void handleMessage(Message msg) {
+            super.handleMessage(msg);
+            if (msg.what == MSG_PLAY){
+                changeVisibility();
+                startPlay();
+            }
+        }
+    };
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_video_reverse);
+
+        initView();
+        initPlayer();
+        videoReverse();
+
+    }
+
+    private void initView() {
+        loading = (LinearLayout) findViewById(R.id.layout_loading);
+        videoNormal = (VideoView) findViewById(R.id.video_normal);
+        videoReverse = (VideoView) findViewById(R.id.video_reverse);
+    }
+
+    private void changeVisibility(){
+        loading.setVisibility(View.GONE);
+        videoNormal.setVisibility(View.VISIBLE);
+        videoReverse.setVisibility(View.VISIBLE);
+    }
+
+    private void initPlayer(){
+        videoNormal.setVideoPath(VIDEO_NORMAL_PATH);
+        videoReverse.setVideoPath(VIDEO_REVERSE_PATH);
+    }
+
+    /**
+     * 开始视频正序、反序播放
+     */
+    private void startPlay(){
+        videoNormal.start();
+        videoReverse.start();
+    }
+
+
+    /**
+     * 执行ffmpeg命令行
+     * @param commandLine commandLine
+     */
+    private void executeFFmpegCmd(final String[] commandLine){
+        if(commandLine == null){
+            return;
+        }
+        FFmpegCmd.execute(commandLine, new FFmpegCmd.OnHandleListener() {
+            @Override
+            public void onBegin() {
+                Log.i(TAG, "handle video onBegin...");
+            }
+
+            @Override
+            public void onEnd(int result) {
+                Log.i(TAG, "handle video onEnd...");
+                mHandler.sendEmptyMessage(MSG_PLAY);
+            }
+        });
+    }
+
+    /**
+     * 视频反序处理
+     */
+    private void videoReverse(){
+        if (!FileUtil.checkFileExist(VIDEO_NORMAL_PATH)){
+            return;
+        }
+        String[] commandLine = FFmpegUtil.reverseVideo(VIDEO_NORMAL_PATH, VIDEO_REVERSE_PATH);
+        executeFFmpegCmd(commandLine);
+    }
+
+}

app/src/main/java/com/frank/ffmpeg/util/FileUtil.java

@@ -66,4 +66,20 @@ public class FileUtil {
         return true;
     }
 
+    /**
+     * 判断文件是否存在
+     * @param path 文件路径
+     * @return 文件是否存在
+     */
+    public static boolean checkFileExist(String path){
+        if (TextUtils.isEmpty(path)) {
+            throw new NullPointerException(path + "is null!");
+        }
+        File file = new File(path);
+        if(!file.exists()){
+            throw new NullPointerException(path + " is not exist!");
+        }
+        return true;
+    }
+
 }

app/src/main/res/layout/activity_main.xml

@@ -7,7 +7,7 @@
         android:id="@+id/btn_audio"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_marginTop="80dp"
+        android:layout_marginTop="10dp"
         android:layout_centerHorizontal="true"
         android:text="@string/audio_handle"/>
 
@@ -65,4 +65,13 @@
         android:layout_centerHorizontal="true"
         android:layout_below="@+id/btn_live"/>
 
+    <Button
+        android:id="@+id/btn_reverse"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/video_reverse"
+        android:layout_marginTop="10dp"
+        android:layout_centerHorizontal="true"
+        android:layout_below="@+id/btn_filter"/>
+
 </RelativeLayout>

app/src/main/res/layout/activity_video_reverse.xml

@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context="com.frank.ffmpeg.activity.VideoReverseActivity"
+    android:orientation="horizontal">
+
+    <VideoView
+        android:id="@+id/video_normal"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:layout_marginEnd="10dp"
+        android:visibility="invisible"/>
+
+    <LinearLayout
+        android:id="@+id/layout_loading"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:orientation="vertical">
+        <ProgressBar
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_horizontal"/>
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="10dp"
+            android:text="视频转换中..."
+            android:textColor="@color/colorPrimary"
+            android:textSize="18dp"/>
+    </LinearLayout>
+
+    <VideoView
+        android:id="@+id/video_reverse"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:layout_marginStart="10dp"
+        android:visibility="invisible"/>
+
+</LinearLayout>