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vamp-sdk/RealTime.h
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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/*
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Vamp
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An API for audio analysis and feature extraction plugins.
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Centre for Digital Music, Queen Mary, University of London.
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Copyright 2006 Chris Cannam.
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation
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files (the "Software"), to deal in the Software without
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restriction, including without limitation the rights to use, copy,
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modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
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ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the names of the Centre for
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Digital Music; Queen Mary, University of London; and Chris Cannam
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shall not be used in advertising or otherwise to promote the sale,
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use or other dealings in this Software without prior written
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authorization.
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*/
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/*
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This is a modified version of a source file from the
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Rosegarden MIDI and audio sequencer and notation editor.
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This file copyright 2000-2006 Chris Cannam.
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Relicensed by the author as detailed above.
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*/
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#ifndef _VAMP_REAL_TIME_H_
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#define _VAMP_REAL_TIME_H_
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#include <iostream>
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#include <string>
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#ifndef _WIN32
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struct
timeval;
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#endif
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#include "
plugguard.h
"
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_VAMP_SDK_PLUGSPACE_BEGIN
(RealTime.h)
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namespace Vamp {
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struct
RealTime
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{
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int
sec
;
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int
nsec
;
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int
usec
()
const
{
return
nsec / 1000; }
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int
msec
()
const
{
return
nsec / 1000000; }
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RealTime
(): sec(0), nsec(0) {}
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RealTime
(
int
s,
int
n);
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RealTime
(
const
RealTime
&r) :
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sec(r.sec), nsec(r.nsec) { }
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static
RealTime
fromSeconds(
double
sec);
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static
RealTime
fromMilliseconds(
int
msec);
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#ifndef _WIN32
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static
RealTime
fromTimeval(
const
struct
timeval &);
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#endif
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RealTime
&
operator=
(
const
RealTime
&r) {
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sec = r.
sec
; nsec = r.
nsec
;
return
*
this
;
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}
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RealTime
operator+
(
const
RealTime
&r)
const
{
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return
RealTime
(sec + r.
sec
, nsec + r.
nsec
);
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}
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RealTime
operator-
(
const
RealTime
&r)
const
{
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return
RealTime
(sec - r.
sec
, nsec - r.
nsec
);
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}
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RealTime
operator-
()
const
{
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return
RealTime
(-sec, -nsec);
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}
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bool
operator <(
const
RealTime
&r)
const
{
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if
(sec == r.
sec
)
return
nsec < r.
nsec
;
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else
return
sec < r.
sec
;
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}
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bool
operator >(
const
RealTime
&r)
const
{
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if
(sec == r.
sec
)
return
nsec > r.
nsec
;
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else
return
sec > r.
sec
;
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}
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bool
operator==
(
const
RealTime
&r)
const
{
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return
(sec == r.
sec
&& nsec == r.
nsec
);
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}
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bool
operator!=
(
const
RealTime
&r)
const
{
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return
!(r == *
this
);
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}
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bool
operator>=
(
const
RealTime
&r)
const
{
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if
(sec == r.
sec
)
return
nsec >= r.
nsec
;
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else
return
sec >= r.
sec
;
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}
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bool
operator<=
(
const
RealTime
&r)
const
{
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if
(sec == r.
sec
)
return
nsec <= r.
nsec
;
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else
return
sec <= r.
sec
;
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}
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RealTime
operator/(
int
d)
const
;
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double
operator/(
const
RealTime
&r)
const
;
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std::string toString()
const
;
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std::string toText(
bool
fixedDp =
false
)
const
;
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static
long
realTime2Frame(
const
RealTime
&r,
unsigned
int
sampleRate);
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static
RealTime
frame2RealTime(
long
frame,
unsigned
int
sampleRate);
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static
const
RealTime
zeroTime
;
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};
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std::ostream &
operator<<
(std::ostream &out,
const
RealTime
&rt);
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}
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_VAMP_SDK_PLUGSPACE_END
(RealTime.h)
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#endif
vamp-sdk
RealTime.h
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