insert thumbnail into video

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

@@ -132,7 +132,8 @@ public class VideoHandleActivity extends BaseActivity {
                 R.id.btn_pip,
                 R.id.btn_moov,
                 R.id.btn_speed,
-                R.id.btn_flv
+                R.id.btn_flv,
+                R.id.btn_thumbnail
         );
     }
 
@@ -321,6 +322,15 @@ public class VideoHandleActivity extends BaseActivity {
                 String outputPath = PATH + File.separator + "frame_index.flv";
                 commandLine = FFmpegUtil.buildFlvIndex(srcFile, outputPath);
                 break;
+            case R.id.btn_thumbnail:// insert thumbnail into video
+                String thumbSuffix = FileUtil.getFileSuffix(srcFile);
+                if (thumbSuffix == null || thumbSuffix.isEmpty()) {
+                    return;
+                }
+                String thumbnailPath = PATH + File.separator + "thumb.jpg";
+                String thumbVideoPath = PATH + File.separator + "thumbnailVideo" + thumbSuffix;
+                commandLine = FFmpegUtil.insertPicIntoVideo(srcFile, thumbnailPath, thumbVideoPath);
+                break;
             default:
                 break;
         }

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

@@ -535,7 +535,7 @@ public class FFmpegUtil {
      * Rebuild the keyframe index of FLV, make it seekable
      * @param inputPath inputFile
      * @param outputPath targetFile
-     * @return command of build flv index
+     * @return command of building flv index
      */
     public static String[] buildFlvIndex(String inputPath, String outputPath) {
         String buildIndex = "ffmpeg -i %s -flvflags add_keyframe_index %s";
@@ -543,6 +543,19 @@ public class FFmpegUtil {
         return buildIndex.split(" ");
     }
 
+    /**
+     * Insert the picture into the header of video, which as a thumbnail
+     * @param inputPath inputFile
+     * @param picturePath the path of thumbnail
+     * @param outputPath targetFile
+     * @return command of inserting picture
+     */
+    public static String[] insertPicIntoVideo(String inputPath, String picturePath, String outputPath) {
+        String buildIndex = "ffmpeg -i %s -i %s -map 0 -map 1 -c copy -c:v:1 png -disposition:v:1 attached_pic %s";
+        buildIndex = String.format(buildIndex, inputPath, picturePath, outputPath);
+        return buildIndex.split(" ");
+    }
+
     /**
      * Using one input file to push multi streams.
      * After publish the streams, you could use VLC to play it

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

@@ -135,6 +135,13 @@
                 android:layout_marginTop="4dp"
                 android:text="@string/video_flv"/>
 
+            <Button
+                android:id="@+id/btn_thumbnail"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="4dp"
+                android:text="@string/video_thumbnail"/>
+
         </LinearLayout>
     </ScrollView>
 

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

@@ -52,6 +52,7 @@
     <string name="video_moov">MOOV move ahead</string>
     <string name="video_speed">Playing speed</string>
     <string name="video_flv">FLV index</string>
+    <string name="video_thumbnail">Insert thumbnail</string>
 
     <string name="swap">Swap</string>
     <string name="start">Start</string>

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

@@ -52,6 +52,7 @@
     <string name="video_moov">MOOV前移</string>
     <string name="video_speed">播放倍率</string>
     <string name="video_flv">FLV索引</string>
+    <string name="video_thumbnail">插入封面</string>
 
     <string name="swap">切换</string>
     <string name="start">开始</string>