show the result of silence detection

app/src/main/cpp/ffmpeg_cmd.c

@@ -54,6 +54,16 @@ FFMPEG_FUNC(void, cancelTaskJni, jint cancel) {
     cancel_task(cancel);
 }
 
+void msg_callback(const char* format, va_list args) {
+    if (ff_env && msg_method) {
+        char *ff_msg = (char*) malloc(sizeof(char) * 1024);
+        vsprintf(ff_msg, format, args);
+        jstring jstr = (*ff_env)->NewStringUTF(ff_env, ff_msg);
+        (*ff_env)->CallStaticVoidMethod(ff_env, ff_class, msg_method, jstr);
+        free(ff_msg);
+    }
+}
+
 void log_callback(void* ptr, int level, const char* format, va_list args) {
     switch (level) {
         case AV_LOG_WARNING:
@@ -61,16 +71,13 @@ void log_callback(void* ptr, int level, const char* format, va_list args) {
             break;
         case AV_LOG_INFO:
             ALOGI(FFMPEG_TAG, format, args);
+            if (format && strncmp("silence", format, 7) == 0) {
+                msg_callback(format, args);
+            }
             break;
         case AV_LOG_ERROR:
             ALOGE(FFMPEG_TAG, format, args);
-            if (ff_env && msg_method) {
-                char *ff_msg = (char*) malloc(sizeof(char) * 1024);
-                vsprintf(ff_msg, format, args);
-                jstring jstr = (*ff_env)->NewStringUTF(ff_env, ff_msg);
-                (*ff_env)->CallStaticVoidMethod(ff_env, ff_class, msg_method, jstr);
-                free(ff_msg);
-            }
+            msg_callback(format, args);
             break;
         default:
             break;

app/src/main/java/com/frank/ffmpeg/FFmpegCmd.java

@@ -180,6 +180,11 @@ public class FFmpegCmd {
     public static void onMsgCallback(String msg) {
         if (msg != null && !msg.isEmpty()) {
             Log.e(TAG, "from native msg=" + msg);
+
+            // silence detect callback
+            if (msg.startsWith("silence") && mProgressListener != null) {
+                mProgressListener.onMsg(msg);
+            }
         }
     }
 

app/src/main/java/com/frank/ffmpeg/activity/AudioHandleActivity.kt

@@ -11,6 +11,7 @@ import android.util.Log
 import android.view.View
 import android.widget.LinearLayout
 import android.widget.TextView
+import android.widget.Toast
 
 import java.io.File
 import java.util.ArrayList
@@ -22,9 +23,11 @@ import com.frank.ffmpeg.handler.FFmpegHandler
 import com.frank.ffmpeg.util.FFmpegUtil
 import com.frank.ffmpeg.util.FileUtil
 
+import com.frank.ffmpeg.handler.FFmpegHandler.MSG_INFO
 import com.frank.ffmpeg.handler.FFmpegHandler.MSG_BEGIN
 import com.frank.ffmpeg.handler.FFmpegHandler.MSG_FINISH
 import com.frank.ffmpeg.handler.FFmpegHandler.MSG_PROGRESS
+import java.lang.StringBuilder
 
 /**
  * Using ffmpeg command to handle audio
@@ -43,6 +46,7 @@ class AudioHandleActivity : BaseActivity() {
     private val outputPath1 = PATH + File.separator + "output1.mp3"
     private val outputPath2 = PATH + File.separator + "output2.mp3"
     private var isJointing = false
+    private var infoBuilder: StringBuilder? = null
 
     @SuppressLint("HandlerLeak")
     private val mHandler = object : Handler() {
@@ -61,6 +65,11 @@ class AudioHandleActivity : BaseActivity() {
                         FileUtil.deleteFile(outputPath1)
                         FileUtil.deleteFile(outputPath2)
                     }
+                    if (infoBuilder != null) {
+                        Toast.makeText(this@AudioHandleActivity,
+                                infoBuilder.toString(), Toast.LENGTH_LONG).show()
+                        infoBuilder = null
+                    }
                 }
                 MSG_PROGRESS -> {
                     val progress = msg.arg1
@@ -72,6 +81,10 @@ class AudioHandleActivity : BaseActivity() {
                         txtProgress!!.visibility = View.INVISIBLE
                     }
                 }
+                MSG_INFO -> {
+                    if (infoBuilder == null) infoBuilder = StringBuilder()
+                    infoBuilder?.append(msg.obj)
+                }
                 else -> {
                 }
             }

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

@@ -8,6 +8,8 @@ import com.frank.ffmpeg.listener.OnHandleListener;
 import com.frank.ffmpeg.model.MediaBean;
 import com.frank.ffmpeg.tool.JsonParseTool;
 
+import org.jetbrains.annotations.NotNull;
+
 import java.util.List;
 
 /**
@@ -26,7 +28,9 @@ public class FFmpegHandler {
 
     public final static int MSG_CONTINUE = 2012;
 
-    public final static int MSG_TOAST = 4562;
+    public final static int MSG_TOAST = 5432;
+
+    public final static int MSG_INFO = 2222;
 
     private Handler mHandler;
 
@@ -56,6 +60,11 @@ public class FFmpegHandler {
                 mHandler.obtainMessage(MSG_BEGIN).sendToTarget();
             }
 
+            @Override
+            public void onMsg(@NotNull String msg) {
+                mHandler.obtainMessage(MSG_INFO, msg).sendToTarget();
+            }
+
             @Override
             public void onProgress(int progress, int duration) {
                 mHandler.obtainMessage(MSG_PROGRESS, progress, duration).sendToTarget();
@@ -97,6 +106,11 @@ public class FFmpegHandler {
                 mHandler.obtainMessage(MSG_BEGIN).sendToTarget();
             }
 
+            @Override
+            public void onMsg(@NotNull String msg) {
+
+            }
+
             @Override
             public void onProgress(int progress, int duration) {
                 mHandler.obtainMessage(MSG_PROGRESS, progress, duration).sendToTarget();
@@ -130,6 +144,11 @@ public class FFmpegHandler {
                 mHandler.obtainMessage(MSG_BEGIN).sendToTarget();
             }
 
+            @Override
+            public void onMsg(@NotNull String msg) {
+
+            }
+
             @Override
             public void onProgress(int progress, int duration) {
 

app/src/main/java/com/frank/ffmpeg/listener/OnHandleListener.kt

@@ -6,6 +6,7 @@ package com.frank.ffmpeg.listener
  */
 interface OnHandleListener {
     fun onBegin()
+    fun onMsg(msg: String)
     fun onProgress(progress: Int, duration: Int)
     fun onEnd(resultCode: Int, resultMsg: String)
 }