From 0f2a7226fb36b3b04b1fa408882a8f0920081850 Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Wed, 27 Aug 2014 18:50:16 +0200
Subject: PlayerControl: use std::chrono::duration for Seek()

---
 src/PlayerControl.cxx         |  4 ++--
 src/PlayerControl.hxx         |  5 +++--
 src/PlayerThread.cxx          | 19 ++++++++++---------
 src/queue/PlaylistControl.cxx |  3 ++-
 4 files changed, 17 insertions(+), 14 deletions(-)

diff --git a/src/PlayerControl.cxx b/src/PlayerControl.cxx
index 244b64f5c..4f1c3d2ac 100644
--- a/src/PlayerControl.cxx
+++ b/src/PlayerControl.cxx
@@ -221,7 +221,7 @@ PlayerControl::EnqueueSong(DetachedSong *song)
 }
 
 bool
-PlayerControl::Seek(DetachedSong *song, float seek_time)
+PlayerControl::Seek(DetachedSong *song, SongTime t)
 {
 	assert(song != nullptr);
 
@@ -229,7 +229,7 @@ PlayerControl::Seek(DetachedSong *song, float seek_time)
 
 	delete next_song;
 	next_song = song;
-	seek_where = seek_time;
+	seek_time = t;
 	SynchronousCommand(PlayerCommand::SEEK);
 	Unlock();
 
diff --git a/src/PlayerControl.hxx b/src/PlayerControl.hxx
index b60227d23..ac5e6602d 100644
--- a/src/PlayerControl.hxx
+++ b/src/PlayerControl.hxx
@@ -26,6 +26,7 @@
 #include "thread/Thread.hxx"
 #include "util/Error.hxx"
 #include "CrossFade.hxx"
+#include "Chrono.hxx"
 
 #include <stdint.h>
 
@@ -161,7 +162,7 @@ struct PlayerControl {
 	 */
 	DetachedSong *next_song;
 
-	double seek_where;
+	SongTime seek_time;
 
 	CrossFadeSettings cross_fade;
 
@@ -434,7 +435,7 @@ public:
 	 * @return true on success, false on failure (e.g. if MPD isn't
 	 * playing currently)
 	 */
-	bool Seek(DetachedSong *song, float seek_time);
+	bool Seek(DetachedSong *song, SongTime t);
 
 	void SetCrossFade(float cross_fade_seconds);
 
diff --git a/src/PlayerThread.cxx b/src/PlayerThread.cxx
index 00f8007a1..0aa8d105d 100644
--- a/src/PlayerThread.cxx
+++ b/src/PlayerThread.cxx
@@ -293,7 +293,7 @@ Player::StartDecoder(MusicPipe &_pipe)
 
 	unsigned start_ms = pc.next_song->GetStartMS();
 	if (pc.command == PlayerCommand::SEEK)
-		start_ms += (unsigned)(pc.seek_where * 1000);
+		start_ms += pc.seek_time.ToMS();
 
 	dc.Start(new DetachedSong(*pc.next_song),
 		 start_ms, pc.next_song->GetEndMS(),
@@ -561,19 +561,20 @@ Player::SeekDecoder()
 
 	/* send the SEEK command */
 
-	double where = pc.seek_where;
-	if (pc.total_time > 0 && where > pc.total_time)
-		where = pc.total_time - 0.1;
-	if (where < 0.0)
-		where = 0.0;
+	SongTime where = pc.seek_time;
+	if (pc.total_time > 0) {
+		const SongTime total_time = SongTime::FromS(pc.total_time);
+		if (where > total_time)
+			where = total_time;
+	}
 
-	if (!dc.Seek(SongTime::FromS(where) + SongTime::FromMS(start_ms))) {
+	if (!dc.Seek(where + SongTime::FromMS(start_ms))) {
 		/* decoder failure */
 		player_command_finished(pc);
 		return false;
 	}
 
-	elapsed_time = where;
+	elapsed_time = where.ToDoubleS();
 
 	player_command_finished(pc);
 
@@ -923,7 +924,7 @@ Player::Run()
 	pc.state = PlayerState::PLAY;
 
 	if (pc.command == PlayerCommand::SEEK)
-		elapsed_time = pc.seek_where;
+		elapsed_time = pc.seek_time.ToDoubleS();
 
 	pc.CommandFinished();
 
diff --git a/src/queue/PlaylistControl.cxx b/src/queue/PlaylistControl.cxx
index db0b8a25d..5d4a910b0 100644
--- a/src/queue/PlaylistControl.cxx
+++ b/src/queue/PlaylistControl.cxx
@@ -215,7 +215,8 @@ playlist::SeekSongPosition(PlayerControl &pc, unsigned song, float seek_time)
 		queued_song = nullptr;
 	}
 
-	if (!pc.Seek(new DetachedSong(queue.GetOrder(i)), seek_time)) {
+	if (!pc.Seek(new DetachedSong(queue.GetOrder(i)),
+		     SongTime::FromS(seek_time))) {
 		UpdateQueuedSong(pc, queued_song);
 
 		return PlaylistResult::NOT_PLAYING;
-- 
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