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diff --git a/lv2/ns/ext/time/time.h b/lv2/ns/ext/time/time.h
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+++ b/lv2/ns/ext/time/time.h
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+/*
+  Copyright 2011 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file time.h C header for the LV2 Time extension
+   <http://lv2plug.in/ns/ext/time>.
+*/
+
+#ifndef LV2_TIME_H
+#define LV2_TIME_H
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+   Time states.
+*/
+typedef enum {
+	LV2_TIME_STOPPED  = 0,  /**< Transport halted */
+	LV2_TIME_ROLLING  = 1,  /**< Transport playing */
+} LV2_Time_State;
+
+/**
+   Bits indicating properties of an LV2_Time_Position.
+*/
+typedef enum {
+	LV2_TIME_HAS_BBT = 1  /**< Has Bar, Beat, Tick */
+} LV2_Time_Flags;
+
+/**
+   Description of a position and/or tempo.
+
+   This struct is used as the payload of an event to notify the plugin about
+   time state, such as position and tempo.
+*/
+typedef struct {
+	/**
+	   @{
+	   @name Mandatory Fields
+	*/
+
+	/**
+	   Frame number on the timeline.
+	*/
+	uint64_t frame;
+
+	/**
+	   Bit field of LV2_Time_Flags values indicating which fields
+	   of this struct are valid.
+	*/
+	uint32_t flags;
+
+	/**
+	   Transport state.
+	*/
+	LV2_Time_State state;
+
+	/**
+	   @}
+	   @{
+	   @name LV2_TIME_BBT fields
+	   These fields are valid iff the LV2_TIME_BBT bit is set in @ref flags.
+	*/
+
+	/**
+	   Current bar.
+	   The first bar is number 0 (but should be represented in a UI as bar 1).
+	*/
+	int64_t bar;
+
+	/**
+	   Beat within the current bar.
+	   The first beat is number 0.
+	   Always <= @ref beats_per_bar.
+	*/
+	int32_t beat;
+
+	/**
+	   Tick within the current beat.
+	   The first tick is number 0.
+	   Always <= @ref ticks_per_beat.
+	*/
+	int32_t tick;
+
+	/**
+	   Number of beats per bar (top of time signature).
+	*/
+	int32_t beats_per_bar;
+
+	/**
+	   Type of note that counts as one beat (bottom of time signature).
+	*/
+	int32_t beat_type;
+
+	/**
+	   Number of ticks per beat.
+	   Typically this is a large integer with many even divisors.
+	*/
+	int32_t ticks_per_beat;
+
+	/**
+	   Current tempo, in beats per minute.
+	*/
+	double beats_per_minute;
+
+	/**
+	   @}
+	*/
+} LV2_Time_Position;
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif  /* LV2_TIME_H */