fix(linux): play sound, when initialized

packages/audioplayers_linux/linux/audio_player.cc

@@ -60,13 +60,14 @@ void AudioPlayer::SetSourceUrl(std::string url) {
     if (_url != url) {
         _url = url;
         gst_element_set_state(playbin, GST_STATE_NULL);
+        _isInitialized = false;
+        _isPlaying = false;
         if (!_url.empty()) {
             g_object_set(playbin, "uri", _url.c_str(), NULL);
             if (playbin->current_state != GST_STATE_READY) {
                 gst_element_set_state(playbin, GST_STATE_READY);
             }
         }
-        _isInitialized = false;
     }
 }
 
@@ -146,7 +147,11 @@ void AudioPlayer::OnMediaStateChange(GstObject *src, GstState *old_state,
         if (*new_state >= GST_STATE_READY) {
             if (!this->_isInitialized) {
                 this->_isInitialized = true;
-                Pause(); // Need to set to pause state, in order to get duration
+                if (this->_isPlaying) {
+                    Resume();
+                } else {
+                    Pause(); // Need to set to pause state, in order to get duration
+                }
             }
         } else if (this->_isInitialized) {
             this->_isInitialized = false;
@@ -211,8 +216,8 @@ void AudioPlayer::OnPlaybackEnded() {
 
 void AudioPlayer::SetBalance(float balance) {
     if (!panorama) {
-       Logger::Error(std::string("Audiopanorama was not initialized"));
-       return;
+        Logger::Error(std::string("Audiopanorama was not initialized"));
+        return;
     }
 
     if (balance > 1.0f) {
@@ -327,14 +332,12 @@ int64_t AudioPlayer::GetDuration() {
 }
 
 void AudioPlayer::Play() {
-    if (!_isInitialized) {
-        return;
-    }
     SetPosition(0);
     Resume();
 }
 
 void AudioPlayer::Pause() {
+    _isPlaying = false;
     GstStateChangeReturn ret = gst_element_set_state(playbin, GST_STATE_PAUSED);
     if (ret == GST_STATE_CHANGE_FAILURE) {
         Logger::Error(
@@ -345,6 +348,7 @@ void AudioPlayer::Pause() {
 }
 
 void AudioPlayer::Resume() {
+    _isPlaying = true;
     if (!_isInitialized) {
         return;
     }
@@ -356,7 +360,7 @@ void AudioPlayer::Resume() {
         return;
     }
     // Update position and duration when start playing, as no event is emitted elsewhere
-    OnPositionUpdate(); 
+    OnPositionUpdate();
     OnDurationUpdate();
 }
 

packages/audioplayers_linux/linux/audio_player.h

@@ -59,6 +59,7 @@ class AudioPlayer {
     GstBus *bus;
 
     bool _isInitialized = false;
+    bool _isPlaying = false;
     bool _isLooping = false;
     bool _isSeekCompleted = true;
     double _playbackRate = 1.0;