From 4cc03af9a9ef811f85ffc0ec17351adcf589a7f8 Mon Sep 17 00:00:00 2001
From: sirius <sirius.ustc@gmail.com>
Date: Sat, 2 Nov 2019 18:32:48 +0800
Subject: [PATCH] remove useless functions for previous audio sync

---
 src/engine/client/video.h  | 2 --
 src/engine/shared/demo.cpp | 4 ----
 src/engine/shared/video.h  | 4 ----
 3 files changed, 10 deletions(-)

diff --git a/src/engine/client/video.h b/src/engine/client/video.h
index 9b1d2014e..7e69070d8 100644
--- a/src/engine/client/video.h
+++ b/src/engine/client/video.h
@@ -71,8 +71,6 @@ public:
 
 	static void Init() { av_log_set_level(AV_LOG_DEBUG); avcodec_register_all(); av_register_all(); }
 
-	bool GetSync() { if(m_Recording) return (double)(m_vframe/m_FPS) <= m_AudioStream.enc->frame_number*m_AudioStream.enc->frame_size/m_AudioStream.enc->sample_rate; }
-
 private:
 	void fill_video_frame();
 	void read_rgb_from_gl();
diff --git a/src/engine/shared/demo.cpp b/src/engine/shared/demo.cpp
index 6f9cbe328..45848ba89 100644
--- a/src/engine/shared/demo.cpp
+++ b/src/engine/shared/demo.cpp
@@ -932,10 +932,6 @@ int CDemoPlayer::Update(bool RealTime)
 				break;
 
 			// do one more tick
-#if defined(CONF_VIDEORECORDER)
-			if(IVideo::Current())
-				IVideo::Current()->SetBreak((double)m_Info.m_Info.m_Speed);
-#endif
 			DoTick();
 
 			if(m_Info.m_Info.m_Paused)
diff --git a/src/engine/shared/video.h b/src/engine/shared/video.h
index 416a3921b..c47093b90 100644
--- a/src/engine/shared/video.h
+++ b/src/engine/shared/video.h
@@ -17,7 +17,6 @@ public:
 
 	virtual void nextAudioFrame(void (*Mix)(short *pFinalOut, unsigned Frames)) = 0;
 	virtual void nextAudioFrame_timeline() = 0;
-	virtual bool GetSync() = 0;
 
 
 	static IVideo* Current() { return ms_pCurrentVideo; }
@@ -27,9 +26,6 @@ public:
 	static void SetLocalStartTime(int64 LocalStartTime) { ms_LocalStartTime = LocalStartTime; }
 	static void SetFPS(int fps) { ms_TickTime = time_freq() / fps; }
 
-	void SetBreak(double Speed) { m_Break += 4.0/Speed; } // I think this 4 is related to `Len/2/2` in `Mix` function of /expand/teeworlds/demo/video_3/src/engine/client/sound.cpp
-	double GetBreak() { return m_Break; }
-
 protected:
 	static IVideo* ms_pCurrentVideo;
 	static int64 ms_Time;