gstreamer-sharp: Query duration async

Vocaluxe/Base/CBackgroundMusic.cs

@@ -198,7 +198,7 @@ namespace Vocaluxe.Base
                     timeToPlay = _CurrentPlaylistElement.Finish - CSound.GetPosition(_CurrentMusicStream);
 
                 bool finished = CSound.IsFinished(_CurrentMusicStream);
-                if (IsPlaying && (timeToPlay <= CSettings.BackgroundMusicFadeTime || finished))
+                if (IsPlaying && ((timeToPlay <= CSettings.BackgroundMusicFadeTime && timeToPlay > 0) || finished))
                 {
                     if (_RepeatSong)
                     {

Vocaluxe/Lib/Sound/CGstreamerSharpAudio.cs

@@ -169,7 +169,7 @@ namespace Vocaluxe.Lib.Sound
         public bool IsPaused(int stream)
         {
             if (!Streams.ContainsKey(stream))
-                return true;
+                return false;
             return Streams[stream].Paused;
         }
 
@@ -206,8 +206,8 @@ namespace Vocaluxe.Lib.Sound
         {
             private Element _Element;
             private bool _Loop;
-            public bool _Closed;
+            public volatile bool _Closed;
-            public bool _Finished;
+            public volatile bool _Finished;
 
             private bool _Fading;
             private bool _CloseStreamAfterFade;
@@ -219,6 +219,10 @@ namespace Vocaluxe.Lib.Sound
             private float _Volume = 100f;
 
             public float _MaxVolume = 100f;
+
+            private volatile float _Duration = -1f;
+            private volatile float _Position = 0f;
+            private volatile bool _QueryingDuration = false;
             public CGstreamerSharpAudioStream(string media, bool prescan)
             {
                 var convert = ElementFactory.Make("audioconvert", "convert");
@@ -250,8 +254,14 @@ namespace Vocaluxe.Lib.Sound
                 _Element["uri"] = new Uri(media).AbsoluteUri;
                 _Element.SetState(State.Paused);
 
-                if (prescan)
+                // Passing CLOCK_TIME_NONE here causes the pipeline to block for a long time so with
-                    _Element.Bus.TimedPopFiltered(0xffffffffffffffff, MessageType.AsyncDone);
+                // prescan enabled the pipeline will wait 500ms for stream to initialize and then continue
+                /*if (prescan)
+                {
+                    var msg = _Element.Bus.TimedPopFiltered(100L * Constants.MSECOND, MessageType.DurationChanged);
+                    if(msg.Handle != IntPtr.Zero)
+                        UpdateDuration();
+                }*/
             }
 
             private void OnMessage(Message msg)
@@ -269,7 +279,10 @@ namespace Vocaluxe.Lib.Sound
                         string debug;
                         msg.ParseError(out error, out debug);
                         CLog.LogError("Gstreamer error: message" + error.Message + ", code" + error.Code + " ,debug information" + debug);
-                        break;                     
+                        break;
+                    case MessageType.DurationChanged:
+                        UpdateDuration();
+                        break;
                 }
                 msg.Unref();
             }
@@ -277,12 +290,21 @@ namespace Vocaluxe.Lib.Sound
 
             public void Close()
             {
-                if (_Element != null)
+                if (!_Closed)
                 {
-                    _Element.SetState(State.Null);
+
+                    _Closed = true;
+                    _Finished = true;
+                    var t = new System.Threading.Thread(TerminateStream);
+                    t.Start();
                 }
-                _Closed = true;
+                
-                _Finished = true;
+            }
+
+            private void TerminateStream()
+            {
+                if (_Element != null)
+                    ; //_Element.SetState(State.Null);
             }
 
             public void Play(bool loop = false)
@@ -356,11 +378,12 @@ namespace Vocaluxe.Lib.Sound
             {
                 get
                 {
-                    long duration = 0;
+                    if (_Duration < 0 && !_QueryingDuration)
-                    if (_Element != null)
+                    {
-                        if (!_Element.QueryDuration(Format.Time, out duration))
+                        var t = new System.Threading.Thread(UpdateDuration);
-                            CLog.LogError("Could not query duration");
+                        t.Start();
-                    return duration > 0 ? (duration / (long)Constants.SECOND) : 100;
+                    }
+                    return _Duration > 0 ? _Duration : -1;
                 }
             }
 
@@ -369,10 +392,11 @@ namespace Vocaluxe.Lib.Sound
                 get
                 {
                     long position = 0;
-                    if (_Element != null)
+                    if (!_Element.QueryPosition(Format.Time, out position))
-                        if (!_Element.QueryPosition(Format.Time, out position))
+                        CLog.LogError("Could not query position");
-                            CLog.LogError("Could not query position");
+                    else
-                    return (float)(position / (double)Constants.SECOND);
+                        _Position = (float)(position / (double)Constants.SECOND);
+                    return _Position;
                 }
                 set
                 {
@@ -385,7 +409,7 @@ namespace Vocaluxe.Lib.Sound
             {
                 get
                 {
-                    return _Element != null ? _Element.CurrentState == State.Paused : true;
+                    return _Element != null ? _Element.TargetState == State.Paused : true;
                 }
                 set
                 {
@@ -398,7 +422,7 @@ namespace Vocaluxe.Lib.Sound
             {
                 get
                 {
-                    return _Element != null ? _Element.CurrentState == State.Playing : false;
+                    return _Element != null ? _Element.TargetState == State.Playing : false;
                 }
                 set
                 {
@@ -436,6 +460,18 @@ namespace Vocaluxe.Lib.Sound
                     }
                 }
             }
+
+            private void UpdateDuration()
+            {
+                _QueryingDuration = true;
+                long duration = -1;
+                while (duration < 0 && !_Closed && !_Finished && _Element != null)
+                {
+                    if (_Element.QueryDuration(Format.Time, out duration))
+                        _Duration = (float)(duration / (long)Constants.SECOND);
+                }
+                _QueryingDuration = false;
+            }
         }
     }
 }

Vocaluxe/Screens/CScreenSing.cs

@@ -94,6 +94,7 @@ namespace Vocaluxe.Screens
 
         private int _CurrentBeat;
         private int _CurrentStream = -1;
+        private float _Length = -1f;
         //private int _NextStream = -1;
         private const float _Volume = 100f;
         private int _CurrentVideo = -1;
@@ -417,6 +418,7 @@ namespace Vocaluxe.Screens
             _CurrentBeat = -100;
             _CurrentTime = 0f;
             _FinishTime = 0f;
+            _Length = -1f;
             _TimeToFirstNote = 0f;
             _TimeToFirstNoteDuet = 0f;
             _Pause = false;
@@ -1302,6 +1304,9 @@ namespace Vocaluxe.Screens
             totalTime -= song.Start;
             float currentTime = _CurrentTime - song.Start;
 
+            if (_Length < 0 && totalTime > 0)
+                _PrepareTimeLine();
+
             if (totalTime <= 0f)
                 return;
 
@@ -1382,6 +1387,8 @@ namespace Vocaluxe.Screens
                     if (totalTime <= 0f)
                         return;
 
+                    _Length = totalTime;
+
                     foreach (CVoice voice in song.Notes.Voices)
                     {
                         foreach (CSongLine line in voice.Lines.Where(line => line.VisibleInTimeLine))

VocaluxeLib/Menu/SongMenu/CSongMenuTileBoard.cs

@@ -58,6 +58,8 @@ namespace VocaluxeLib.Menu.SongMenu
 
         private bool _SmallView;
 
+        private float _Length = -1f;
+
         public CSongMenuTileBoard(int partyModeID)
             : base(partyModeID) {}
 
@@ -132,6 +134,9 @@ namespace VocaluxeLib.Menu.SongMenu
                 for (int i = 0; i < _Tiles.Count; i++)
                     _Tiles[i].Selected = _Locked == i + _Offset;
             }
+
+            if (_Length < 0 && CBase.Sound.GetLength(_PreviewSongStream) > 0 && CBase.Songs.IsInCategory())
+                UpdateLength(CBase.Songs.GetVisibleSong(_PreviewId));
         }
 
         private void _UpdatePreview()
@@ -145,6 +150,7 @@ namespace VocaluxeLib.Menu.SongMenu
             _VideoIcon.Visible = false;
             _MedleyCalcIcon.Visible = false;
             _MedleyTagIcon.Visible = false;
+            _Length = -1f;
 
             //Check if nothing is selected (for preview)
             if (_PreviewId < 0)
@@ -173,14 +179,7 @@ namespace VocaluxeLib.Menu.SongMenu
                 _MedleyCalcIcon.Visible = song.Medley.Source == EDataSource.Calculated;
                 _MedleyTagIcon.Visible = song.Medley.Source == EDataSource.Tag;
 
-                float time = CBase.Sound.GetLength(_PreviewSongStream);
+                UpdateLength(song);
-                if (Math.Abs(song.Finish) > 0.001)
-                    time = song.Finish;
-
-                time -= song.Start;
-                var min = (int)Math.Floor(time / 60f);
-                var sec = (int)(time - min * 60f);
-                _SongLength.Text = min.ToString("00") + ":" + sec.ToString("00");
             }
             else
             {
@@ -197,6 +196,23 @@ namespace VocaluxeLib.Menu.SongMenu
             }
         }
 
+        private void UpdateLength(CSong song)
+        {
+            float time = CBase.Sound.GetLength(_PreviewSongStream);
+            if (Math.Abs(song.Finish) > 0.001)
+                time = song.Finish;
+
+            // The audiobackend is not yet ready to return the length
+            if (time > 0)
+            {
+                time -= song.Start;
+                var min = (int)Math.Floor(time / 60f);
+                var sec = (int)(time - min * 60f);
+                _SongLength.Text = min.ToString("00") + ":" + sec.ToString("00");
+                _Length = time;
+            }
+        }
+
         public override void OnShow()
         {
             if (CBase.Songs.GetTabs() == EOffOn.TR_CONFIG_OFF && CBase.Songs.GetNumCategories() > 0 && !CBase.Songs.IsInCategory())