src/playbin.vala

@@ -43,6 +43,9 @@ public class Playbin : GLib.Object {
     // signalled when the last track is over
     public signal void stopped ();
 
+    // set to false when manually switching tracks
+    private bool inc_position;
+
     // these are mostly synced with mpv
     public double position { get; private set; default = 0.0; }
     public double duration { get; private set; default = 0.0; }
@@ -140,6 +143,11 @@ public class Playbin : GLib.Object {
 
                     case Mpv.EventId.START_FILE:
                         debug ("START_FILE received");
+                        if (this.inc_position) {
+                            this.play_queue_position += 1;
+                        } else {
+                            this.inc_position = true;
+                        }
 
                         // estimate duration from api data
                         // while mpv doesn't know it
@@ -149,23 +157,18 @@ public class Playbin : GLib.Object {
                         break;
 
                     case Mpv.EventId.END_FILE:
+                        debug ("END_FILE received");
                         var data = event.parse_end_file ();
-                        debug (@"END_FILE received (reason: $(data.reason))");
-
                         if (data.error < 0) {
                             warning ("playback of track aborted: %s", data.error.to_string ());
                         }
 
-                        if (data.reason == Mpv.EndFileReason.EOF) {
+                        if (this.inc_position && this.play_queue_position+1 == this._play_queue.get_n_items ()) {
-                            // assume this is a proper transition
-                            this.play_queue_position += 1;
-
-                            if (this.play_queue_position == this._play_queue.get_n_items ()) {
                             // reached the end (?)
+                            this.play_queue_position += 1;
                             this.state = PlaybinState.STOPPED;
                             this.stopped ();
                         }
-                        }
 
                         break;
                       
@@ -182,12 +185,8 @@ public class Playbin : GLib.Object {
     }
 
     public void seek (double position) {
-        var rc = this.mpv.command ({"seek", position.to_string (), "absolute"});
-        if (rc < 0) {
-            warning (@"could not seek to $position: $rc");
-        } else {
         this.position = position;
-        }
+        assert (this.mpv.command ({"seek", position.to_string (), "absolute"}) >= 0);
     }
 
     // manually changes which track in the play queue to play
@@ -197,6 +196,7 @@ public class Playbin : GLib.Object {
         assert (this.mpv.command ({"playlist-play-index", position.to_string ()}) >= 0);
         this.state = PlaybinState.PLAYING;
         this.play_queue_position = position;
+        this.inc_position = false;
     }
 
     public void pause () {
@@ -224,6 +224,7 @@ public class Playbin : GLib.Object {
             requires (this.state != PlaybinState.STOPPED)
     {
         if (this.play_queue_position+1 < this._play_queue.get_n_items ()) {
+            this.inc_position = false;
             this.play_queue_position += 1;
             assert (this.mpv.command ({"playlist-next-playlist"}) >= 0);
         } else {
@@ -235,6 +236,7 @@ public class Playbin : GLib.Object {
             requires (this.state != PlaybinState.STOPPED)
     {
         if (this.play_queue_position > 0) {
+            this.inc_position = false;
             this.play_queue_position -= 1;
             assert (this.mpv.command ({"playlist-prev-playlist"}) >= 0);
         } else {