use superfast of preset to improve speed

app/src/main/java/com/frank/ffmpeg/handler/FFmpegHandler.java

@@ -36,6 +36,8 @@ public class FFmpegHandler {
 
     private boolean isContinue = false;
 
+    private long startTimestamp = 0;
+
     public FFmpegHandler(Handler mHandler) {
         this.mHandler = mHandler;
     }
@@ -60,6 +62,7 @@ public class FFmpegHandler {
             public void onBegin() {
                 Log.i(TAG, "handle onBegin...");
                 mHandler.obtainMessage(MSG_BEGIN).sendToTarget();
+                startTimestamp = System.currentTimeMillis();
             }
 
             @Override
@@ -74,7 +77,16 @@ public class FFmpegHandler {
 
             @Override
             public void onEnd(int resultCode, String resultMsg) {
-                Log.i(TAG, "handle onEnd...");
+                long time = System.currentTimeMillis() - startTimestamp;
+                long seconds = time / 1000;
+                long minute = seconds / 60;
+                long second = seconds % 60;
+                long millisecond = time % 1000;
+                if (minute > 0) {
+                    Log.i(TAG, "handle onEnd time=" + minute + ":" + second + "." + millisecond);
+                } else {
+                    Log.i(TAG, "handle onEnd time=" + second + "." + millisecond);
+                }
                 if (isContinue) {
                     mHandler.obtainMessage(MSG_CONTINUE).sendToTarget();
                 } else {

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

@@ -305,13 +305,8 @@ public class FFmpegUtil {
      * @return transform video success or not
      */
     public static String[] transformVideo(String inputPath, String outputPath) {
-        //just copy codec
-//        String transformVideoCmd = "ffmpeg -i %s -vcodec copy -acodec copy %s";
-        // assign the frameRate, bitRate and resolution
-//        String transformVideoCmd = "ffmpeg -i %s -r 25 -b 200 -s 1080x720 %s";
-        // assign the encoder
-//        ffmpeg -i %s -vcodec libx264 -acodec libmp3lame %s
-        String transformVideoCmd = "ffmpeg -i -vcodec libx264 -acodec libmp3lame";
+        // preset: ultrafast > superfast > veryfast > fast > medium > slow > veryslow
+        String transformVideoCmd = "ffmpeg -i -vcodec libx264 -acodec libmp3lame -threads 8 -preset superfast";
         return insert(transformVideoCmd.split(" "), 2, inputPath, outputPath);
     }
 
@@ -339,9 +334,9 @@ public class FFmpegUtil {
         String transformVideoCmd;
         if (width > 0 && height > 0) {
             String scale = "-vf scale=" + width + ":" + height;
-            transformVideoCmd = "ffmpeg -i -vcodec libx264 -acodec aac " + scale;
+            transformVideoCmd = "ffmpeg -i -vcodec libx264 -threads 8 -preset superfast -acodec aac " + scale;
         } else {
-            transformVideoCmd = "ffmpeg -i -vcodec libx264 -acodec aac";
+            transformVideoCmd = "ffmpeg -i -vcodec libx264 -threads 8 -preset superfast -acodec aac";
         }
         return insert(transformVideoCmd.split(" "), 2, inputPath, outputPath);
     }
@@ -572,7 +567,6 @@ public class FFmpegUtil {
      * @return reverse success or not
      */
     public static String[] reverseVideo(String inputPath, String outputPath) {
-        //-vf reverse: only video reverse, -an: disable audio
         //tip: reverse will cost a lot of time, only short video are recommended
         String reverseVideo = "ffmpeg -i -vf reverse -an";
         return insert(reverseVideo.split(" "), 2, inputPath, outputPath);