Merge branch 'v0.16.x'

Conflicts:
	src/player_thread.c

src/decoder_internal.h

@@ -36,6 +36,25 @@ struct decoder {
 	 */
 	double timestamp;
 
+	/**
+	 * Is the initial seek (to the start position of the sub-song)
+	 * pending, or has it been performed already?
+	 */
+	bool initial_seek_pending;
+
+	/**
+	 * Is the initial seek currently running?  During this time,
+	 * the decoder command is SEEK.  This flag is set by
+	 * decoder_get_virtual_command(), when the virtual SEEK
+	 * command is generated for the first time.
+	 */
+	bool initial_seek_running;
+
+	/**
+	 * This flag is set by decoder_seek_where(), and checked by
+	 * decoder_command_finished().  It is used to clean up after
+	 * seeking.
+	 */
 	bool seeking;
 
 	/**