DecoderControl: use std::chrono::duration for start_ms and end_ms

src/PlayerThread.cxx

@@ -296,7 +296,7 @@ Player::StartDecoder(MusicPipe &_pipe)
 		start_time += pc.seek_time;
 
 	dc.Start(new DetachedSong(*pc.next_song),
-		 start_time.ToMS(), pc.next_song->GetEndTime().ToMS(),
+		 start_time, pc.next_song->GetEndTime(),
 		 buffer, _pipe);
 }
 

src/decoder/DecoderAPI.cxx

@@ -179,7 +179,7 @@ decoder_command_finished(Decoder &decoder)
 		assert(dc.pipe->IsEmpty());
 
 		decoder.initial_seek_running = false;
-		decoder.timestamp = dc.start_ms / 1000.;
+		decoder.timestamp = dc.start_time.ToDoubleS();
 		dc.Unlock();
 		return;
 	}
@@ -212,7 +212,7 @@ decoder_seek_time(Decoder &decoder)
 	assert(dc.pipe != nullptr);
 
 	if (decoder.initial_seek_running)
-		return SongTime(dc.start_ms);
+		return dc.start_time;
 
 	assert(dc.command == DecoderCommand::SEEK);
 
@@ -226,17 +226,7 @@ decoder_seek_where_frame(Decoder &decoder)
 {
 	const DecoderControl &dc = decoder.dc;
 
-	assert(dc.pipe != nullptr);
+	return decoder_seek_time(decoder).ToScale<uint64_t>(dc.in_audio_format.sample_rate);
-
-	if (decoder.initial_seek_running)
-		return uint64_t(dc.start_ms) * dc.in_audio_format.sample_rate
-			/ 1000;
-
-	assert(dc.command == DecoderCommand::SEEK);
-
-	decoder.seeking = true;
-
-	return dc.seek_time.ToScale<uint64_t>(dc.in_audio_format.sample_rate);
 }
 
 void decoder_seek_error(Decoder & decoder)
@@ -553,8 +543,8 @@ decoder_data(Decoder &decoder,
 		decoder.timestamp += (double)nbytes /
 			dc.out_audio_format.GetTimeToSize();
 
-		if (dc.end_ms > 0 &&
+		if (dc.end_time.IsPositive() &&
-		    decoder.timestamp >= dc.end_ms / 1000.0)
+		    decoder.timestamp >= dc.end_time.ToDoubleS())
 			/* the end of this range has been reached:
 			   stop decoding */
 			return DecoderCommand::STOP;

src/decoder/DecoderControl.cxx

@@ -70,7 +70,7 @@ DecoderControl::IsCurrentSong(const DetachedSong &_song) const
 
 void
 DecoderControl::Start(DetachedSong *_song,
-		      unsigned _start_ms, unsigned _end_ms,
+		      SongTime _start_time, SongTime _end_time,
 		      MusicBuffer &_buffer, MusicPipe &_pipe)
 {
 	assert(_song != nullptr);
@@ -78,8 +78,8 @@ DecoderControl::Start(DetachedSong *_song,
 
 	delete song;
 	song = _song;
-	start_ms = _start_ms;
+	start_time = _start_time;
-	end_ms = _end_ms;
+	end_time = _end_time;
 	buffer = &_buffer;
 	pipe = &_pipe;
 

src/decoder/DecoderControl.hxx

@@ -127,21 +127,20 @@ struct DecoderControl {
 	DetachedSong *song;
 
 	/**
-	 * The initial seek position (in milliseconds), e.g. to the
+	 * The initial seek position, e.g. to the start of a sub-track
-	 * start of a sub-track described by a CUE file.
+	 * described by a CUE file.
 	 *
 	 * This attribute is set by Start().
 	 */
-	unsigned start_ms;
+	SongTime start_time;
 
 	/**
-	 * The decoder will stop when it reaches this position (in
+	 * The decoder will stop when it reaches this position.  0
-	 * milliseconds).  0 means don't stop before the end of the
+	 * means don't stop before the end of the file.
-	 * file.
 	 *
 	 * This attribute is set by Start().
 	 */
-	unsigned end_ms;
+	SongTime end_time;
 
 	float total_time;
 
@@ -356,12 +355,12 @@ public:
 	 *
 	 * @param song the song to be decoded; the given instance will be
 	 * owned and freed by the decoder
-	 * @param start_ms see #DecoderControl
+	 * @param start_time see #DecoderControl
-	 * @param end_ms see #DecoderControl
+	 * @param end_time see #DecoderControl
 	 * @param pipe the pipe which receives the decoded chunks (owned by
 	 * the caller)
 	 */
-	void Start(DetachedSong *song, unsigned start_ms, unsigned end_ms,
+	void Start(DetachedSong *song, SongTime start_time, SongTime end_time,
 		   MusicBuffer &buffer, MusicPipe &pipe);
 
 	void Stop();

src/decoder/DecoderThread.cxx

@@ -360,7 +360,7 @@ static void
 decoder_run_song(DecoderControl &dc,
 		 const DetachedSong &song, const char *uri, Path path_fs)
 {
-	Decoder decoder(dc, dc.start_ms > 0,
+	Decoder decoder(dc, dc.start_time.IsPositive(),
 			new Tag(song.GetTag()));
 	int ret;