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Hook up new Fwd/Rev system

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This commit is contained in:
Matthias Neeracher 2011-08-29 02:41:04 +02:00
parent 61fffbe00c
commit f083ae9857
4 changed files with 293 additions and 339 deletions
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557
English.lproj/VLDocument.xib
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File diff suppressed because it is too large Load Diff

29
Sources/VLDocument.mm
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@ -598,35 +598,12 @@
- (IBAction) playMusic:(id)sender
{
const float kUpScale = 1.41f;
const float kDownScale = 1.0f/kUpScale;
bool nowPlaying = VLSoundOut::Instance()->Playing();
const float tempoRate = [songTempo floatValue] / baseTempo;
switch (int tag = [sender tag]) {
case 0: // Play
VLSoundOut::Instance()->SetPlayRate(playRate = 1.0f);
if (!hasMusicSequence || !nowPlaying)
[self play:sender];
else if (VLSoundOut::Instance()->AtEnd())
VLSoundOut::Instance()->SetTime(0);
break;
case 1: // Fwd
VLSoundOut::Instance()->Fwd();
break;
case -1: // Rew
if (tag * playRate < 0)
playRate = tag;
else if ([[NSApp currentEvent] modifierFlags] & NSAlternateKeyMask)
playRate *= kDownScale;
else
playRate *= kUpScale;
VLSoundOut::Instance()->SetPlayRate(playRate*tempoRate);
break;
case -2: // To Start
if (playRate < 0)
VLSoundOut::Instance()->SetPlayRate(playRate = -playRate);
VLSoundOut::Instance()->SetTime(0);
break;
case 2: // To End
VLSoundOut::Instance()->SetTime(0x7FFFFFFF);
VLSoundOut::Instance()->Bck();
break;
}
}

43
Sources/VLSoundOut.cpp
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@ -17,8 +17,9 @@
#include <memory>
#include <vector>
#include <dispatch/dispatch.h>
#define R(x) if (OSStatus r = (x)) fprintf(stderr, "%s -> %ld\n", #x, r);
#define R(x) if (OSStatus r = (x)) fprintf(stderr, "%s -> %d\n", #x, r);
class VLAUSoundOut : public VLSoundOut {
public:
@ -31,7 +32,8 @@ public:
virtual bool Playing();
virtual bool AtEnd();
virtual void SetPlayRate(float rate);
virtual void SetTime(MusicTimeStamp time);
virtual void Fwd();
virtual void Bck();
virtual ~VLAUSoundOut();
protected:
@ -40,6 +42,7 @@ protected:
void InitSoundOutput(bool fileOutput);
virtual void SetupOutput(AUNode outputNode);
MusicTimeStamp SequenceLength(MusicSequence music);
void SkipTimeInterval();
AUGraph fGraph;
MusicPlayer fPlayer;
@ -217,9 +220,41 @@ void VLAUSoundOut::SetPlayRate(float rate)
MusicPlayerSetPlayRateScalar(fPlayer, fabsf(rate));
}
void VLAUSoundOut::SetTime(MusicTimeStamp time)
static MusicTimeStamp sLastSkip = 0.0;
static dispatch_source_t sResetTimer;
void VLAUSoundOut::SkipTimeInterval()
{
MusicPlayerSetTime(fPlayer, time);
MusicTimeStamp time;
MusicPlayerGetTime(fPlayer, &time);
time += sLastSkip;
sLastSkip *= 1.1;
if (!sResetTimer) {
sResetTimer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0,
dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0));
dispatch_source_set_event_handler(sResetTimer, ^{
sLastSkip = 0.0;
});
dispatch_source_set_timer(sResetTimer, DISPATCH_TIME_FOREVER, INT64_MAX, 1000*NSEC_PER_USEC);
dispatch_resume(sResetTimer);
}
dispatch_source_set_timer(sResetTimer, dispatch_time(DISPATCH_TIME_NOW, 500*NSEC_PER_MSEC),
INT64_MAX, 10*NSEC_PER_MSEC);
MusicPlayerSetTime(fPlayer, time);
}
void VLAUSoundOut::Fwd()
{
if (sLastSkip <= 0.0)
sLastSkip = 0.1;
SkipTimeInterval();
}
void VLAUSoundOut::Bck()
{
if (sLastSkip >= 0.0)
sLastSkip = -0.1;
SkipTimeInterval();
}
void VLAUSoundOut::Stop(bool pause)

3
Sources/VLSoundOut.h
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@ -43,7 +43,8 @@ public:
virtual bool Playing() = 0;
virtual bool AtEnd() = 0;
virtual void SetPlayRate(float rate) = 0;
virtual void SetTime(MusicTimeStamp time) = 0;
virtual void Fwd() = 0;
virtual void Bck() = 0;
virtual ~VLSoundOut();
};