Calculate current time (in seconds) for current audio file position

src/Audio.cpp

@@ -1454,6 +1454,22 @@ uint32_t Audio::getAudioFileDuration(){
     }
     return m_audioFileDuration;
 }
+//---------------------------------------------------------------------------------------------------------------------
+    // return curent time in seconds
+uint32_t Audio::getAudioCurrentTime(){
+    uint32_t curTime = 0;
+    if ( mp3file)
+    {
+        uint32_t fileDuration = getAudioFileDuration();
+        float factor = ( mp3file.position() - m_id3Size ) / ( mp3file.size() - m_id3Size + 1.0f );
+        if(0.0 < factor)
+        {
+            curTime = fileDuration * factor;
+        }
+    }
+    return curTime;
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 bool Audio::setFilePos(uint32_t pos){
     if (!mp3file) return false;

src/Audio.h

@@ -56,6 +56,12 @@ class Audio  {
      * @return uint32_t file duration in seconds, 0 if no file active
      */
     uint32_t getAudioFileDuration();
+    /**
+     * @brief Get the current plying time in seconds
+     * 
+     * @return uint32_t current second of audio file, 0 if no file active
+     */
+    uint32_t getAudioCurrentTime();
     bool setFilePos(uint32_t pos);
     bool setPinout(uint8_t BCLK, uint8_t LRC, uint8_t DOUT);
     void stopSong();