PlayerThread: use SongTime for elapsed_time

src/PlayerControl.hxx

@@ -90,7 +90,7 @@ struct player_status {
 	uint16_t bit_rate;
 	AudioFormat audio_format;
 	SignedSongTime total_time;
-	float elapsed_time;
+	SongTime elapsed_time;
 };
 
 struct PlayerControl {
@@ -152,7 +152,7 @@ struct PlayerControl {
 	uint16_t bit_rate;
 	AudioFormat audio_format;
 	SignedSongTime total_time;
-	float elapsed_time;
+	SongTime elapsed_time;
 
 	/**
 	 * The next queued song.

src/PlayerThread.cxx

@@ -129,7 +129,7 @@ class Player {
 	 * value; the output thread can estimate the elapsed time more
 	 * precisely.
 	 */
-	float elapsed_time;
+	SongTime elapsed_time;
 
 public:
 	Player(PlayerControl &_pc, DecoderControl &_dc,
@@ -146,7 +146,7 @@ public:
 		 cross_fading(false),
 		 cross_fade_chunks(0),
 		 cross_fade_tag(nullptr),
-		 elapsed_time(0.0) {}
+		 elapsed_time(SongTime::zero()) {}
 
 private:
 	void ClearAndDeletePipe() {
@@ -342,7 +342,7 @@ Player::WaitForDecoder()
 
 	delete song;
 	song = pc.next_song;
-	elapsed_time = 0.0;
+	elapsed_time = SongTime::zero();
 
 	/* set the "starting" flag, which will be cleared by
 	   player_check_decoder_startup() */
@@ -574,7 +574,7 @@ Player::SeekDecoder()
 		return false;
 	}
 
-	elapsed_time = where.ToDoubleS();
+	elapsed_time = where;
 
 	player_command_finished(pc);
 
@@ -674,9 +674,9 @@ Player::ProcessCommand()
 			pc.Lock();
 		}
 
-		pc.elapsed_time = pc.outputs.GetElapsedTime();
-		if (pc.elapsed_time < 0.0)
-			pc.elapsed_time = elapsed_time;
+		pc.elapsed_time = pc.outputs.GetElapsedTime() >= 0
+			? SongTime::FromS(pc.outputs.GetElapsedTime())
+			: elapsed_time;
 
 		pc.CommandFinished();
 		break;
@@ -924,7 +924,7 @@ Player::Run()
 	pc.state = PlayerState::PLAY;
 
 	if (pc.command == PlayerCommand::SEEK)
-		elapsed_time = pc.seek_time.ToDoubleS();
+		elapsed_time = pc.seek_time;
 
 	pc.CommandFinished();
 

src/command/PlayerCommands.cxx

@@ -175,11 +175,11 @@ handle_status(Client &client,
 			      COMMAND_STATUS_TIME ": %i:%i\n"
 			      "elapsed: %1.3f\n"
 			      COMMAND_STATUS_BITRATE ": %u\n",
-			      (int)(player_status.elapsed_time + 0.5),
+			      player_status.elapsed_time.RoundS(),
 			      player_status.total_time.IsNegative()
 			      ? 0u
 			      : unsigned(player_status.total_time.RoundS()),
-			      player_status.elapsed_time,
+			      player_status.elapsed_time.ToDoubleS(),
 			      player_status.bit_rate);
 
 		if (player_status.audio_format.IsDefined()) {

src/queue/PlaylistControl.cxx

@@ -252,7 +252,7 @@ playlist::SeekCurrent(PlayerControl &pc,
 		    status.state != PlayerState::PAUSE)
 			return PlaylistResult::NOT_PLAYING;
 
-		seek_time += SignedSongTime::FromS(status.elapsed_time);
+		seek_time += status.elapsed_time;
 		if (seek_time.IsNegative())
 			seek_time = SignedSongTime::zero();
 	}

src/queue/PlaylistState.cxx

@@ -77,8 +77,8 @@ playlist_state_save(BufferedOutputStream &os, const struct playlist &playlist,
 		}
 		os.Format(PLAYLIST_STATE_FILE_CURRENT "%i\n",
 			  playlist.queue.OrderToPosition(playlist.current));
-		os.Format(PLAYLIST_STATE_FILE_TIME "%i\n",
-			  (int)player_status.elapsed_time);
+		os.Format(PLAYLIST_STATE_FILE_TIME "%f\n",
+			  player_status.elapsed_time.ToDoubleS());
 	} else {
 		os.Write(PLAYLIST_STATE_FILE_STATE_STOP "\n");
 
@@ -150,7 +150,7 @@ playlist_state_restore(const char *line, TextFile &file,
 
 	while ((line = file.ReadLine()) != nullptr) {
 		if (StringStartsWith(line, PLAYLIST_STATE_FILE_TIME)) {
-			unsigned seconds = atoi(&(line[strlen(PLAYLIST_STATE_FILE_TIME)]));
+			double seconds = atof(line + strlen(PLAYLIST_STATE_FILE_TIME));
 			seek_time = SongTime::FromS(seconds);
 		} else if (StringStartsWith(line, PLAYLIST_STATE_FILE_REPEAT)) {
 			playlist.SetRepeat(pc,
@@ -229,7 +229,7 @@ playlist_state_get_hash(const playlist &playlist,
 
 	return playlist.queue.version ^
 		(player_status.state != PlayerState::STOP
-		 ? ((int)player_status.elapsed_time << 8)
+		 ? (player_status.elapsed_time.ToS() << 8)
 		 : 0) ^
 		(playlist.current >= 0
 		 ? (playlist.queue.OrderToPosition(playlist.current) << 16)