视频反序倒播

视频反序倒播（纯视频）

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

@@ -69,6 +69,7 @@ public class VideoHandleActivity extends AppCompatActivity implements View.OnCli
         findViewById(R.id.btn_combine_video).setOnClickListener(this);
         findViewById(R.id.btn_play_video).setOnClickListener(this);
         findViewById(R.id.btn_multi_video).setOnClickListener(this);
+        findViewById(R.id.btn_reverse_video).setOnClickListener(this);
     }
 
     private void setVisible() {
@@ -82,6 +83,7 @@ public class VideoHandleActivity extends AppCompatActivity implements View.OnCli
         findViewById(R.id.btn_combine_video).setVisibility(View.VISIBLE);
         findViewById(R.id.btn_play_video).setVisibility(View.VISIBLE);
         findViewById(R.id.btn_multi_video).setVisibility(View.VISIBLE);
+        findViewById(R.id.btn_reverse_video).setVisibility(View.VISIBLE);
     }
 
     private void setGone() {
@@ -95,6 +97,7 @@ public class VideoHandleActivity extends AppCompatActivity implements View.OnCli
         findViewById(R.id.btn_combine_video).setVisibility(View.GONE);
         findViewById(R.id.btn_play_video).setVisibility(View.GONE);
         findViewById(R.id.btn_multi_video).setVisibility(View.GONE);
+        findViewById(R.id.btn_reverse_video).setVisibility(View.GONE);
     }
 
     @Override
@@ -131,6 +134,9 @@ public class VideoHandleActivity extends AppCompatActivity implements View.OnCli
             case R.id.btn_multi_video:
                 handleType = 9;
                 break;
+            case R.id.btn_reverse_video:
+                handleType = 10;
+                break;
             default:
                 handleType = 0;
                 break;
@@ -219,6 +225,11 @@ public class VideoHandleActivity extends AppCompatActivity implements View.OnCli
                 String outputFile = PATH + File.separator + "multi.mp4";
                 commandLine = FFmpegUtil.multiVideo(input1, input2, outputFile, VideoLayout.LAYOUT_HORIZONTAL);
                 break;
+            case 10://视频反序倒播
+                String input = PATH + File.separator + "beyond.mp4";
+                String output = PATH + File.separator + "reverse.mp4";
+                commandLine = FFmpegUtil.reverseVideo(input, output);
+                break;
             default:
                 break;
         }

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

@@ -249,4 +249,19 @@ public class FFmpegUtil {
         return multiVideo.split(" ");
     }
 
+    /**
+     * 视频反序倒播
+     * @param inputFile 输入文件
+     * @param targetFile 反序文件
+     *
+     * @return 视频反序的命令行
+     */
+    public static  String[] reverseVideo(String inputFile, String targetFile){
+        //FIXME 音频也反序
+//        String reverseVideo = "ffmpeg -i %s -filter_complex [0:v]reverse[v];[0:a]areverse[a] -map [v] -map [a] %s";
+        String reverseVideo = "ffmpeg -i %s -filter_complex [0:v]reverse[v] -map [v] %s";//单纯视频反序
+        reverseVideo = String.format(reverseVideo, inputFile, targetFile);
+        return reverseVideo.split(" ");
+    }
+
 }

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

@@ -10,7 +10,7 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_centerHorizontal="true"
-        android:layout_marginTop="20dp"
+        android:layout_marginTop="10dp"
         android:text="@string/video_transform"/>
 
     <Button
@@ -103,4 +103,13 @@
         android:layout_marginTop="10dp"
         android:text="@string/video_multi"/>
 
+    <Button
+        android:id="@+id/btn_reverse_video"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerHorizontal="true"
+        android:layout_below="@id/btn_multi_video"
+        android:layout_marginTop="10dp"
+        android:text="@string/video_reverse"/>
+
 </RelativeLayout>

app/src/main/res/values/strings.xml

@@ -35,6 +35,7 @@
     <string name="video_slow">慢放</string>
     <string name="video_fast">快进</string>
     <string name="video_multi">画面拼接</string>
+    <string name="video_reverse">视频倒播</string>
 
     <string name="swap">切换</string>
     <string name="start">开始</string>