cog/Application/PlaybackController.m

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#import "PlaybackController.h"
#import "PlaylistView.h"
#import <Foundation/NSTimer.h>
#import "CogAudio/Status.h"
#import "CogAudio/Helper.h"
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#import "PlaylistController.h"
#import "PlaylistEntry.h"
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#import "PlaylistLoader.h"
#import <MediaPlayer/MPNowPlayingInfoCenter.h>
#import <MediaPlayer/MPRemoteCommandCenter.h>
#import <MediaPlayer/MPRemoteCommand.h>
#import <MediaPlayer/MPMediaItem.h>
#import <MediaPlayer/MPRemoteCommandEvent.h>
#import "Logging.h"
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@implementation PlaybackController
#define DEFAULT_SEEK 5
NSString *CogPlaybackDidBeginNotficiation = @"CogPlaybackDidBeginNotficiation";
NSString *CogPlaybackDidPauseNotficiation = @"CogPlaybackDidPauseNotficiation";
NSString *CogPlaybackDidResumeNotficiation = @"CogPlaybackDidResumeNotficiation";
NSString *CogPlaybackDidStopNotficiation = @"CogPlaybackDidStopNotficiation";
@synthesize playbackStatus;
+ (NSSet *)keyPathsForValuesAffectingSeekable
{
return [NSSet setWithObjects:@"playlistController.currentEntry",@"playlistController.currentEntry.seekable",nil];
}
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- (id)init
{
self = [super init];
if (self)
{
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[self initDefaults];
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seekable = NO;
fading = NO;
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audioPlayer = [[AudioPlayer alloc] init];
[audioPlayer setDelegate:self];
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[self setPlaybackStatus: CogStatusStopped];
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}
return self;
}
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- (void)initDefaults
{
NSDictionary *defaultsDictionary = [NSDictionary dictionaryWithObjectsAndKeys:
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[NSNumber numberWithDouble:100.0], @"volume",
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nil];
[[NSUserDefaults standardUserDefaults] registerDefaults:defaultsDictionary];
}
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- (void)awakeFromNib
{
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double volume = [[NSUserDefaults standardUserDefaults] doubleForKey:@"volume"];
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[volumeSlider setDoubleValue:logarithmicToLinear(volume)];
[audioPlayer setVolume:volume];
[self setSeekable:NO];
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}
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- (IBAction)playPauseResume:(id)sender
{
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if (playbackStatus == CogStatusStopped || playbackStatus == CogStatusStopping)
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{
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[self play:self];
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}
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else
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{
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[self pauseResume:self];
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}
[self sendMetaData];
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}
- (IBAction)pauseResume:(id)sender
{
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if (playbackStatus == CogStatusPaused)
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[self resume:self];
else
[self pause:self];
}
- (IBAction)pause:(id)sender
{
[audioPlayer pause];
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[self setPlaybackStatus: CogStatusPaused];
[self sendMetaData];
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}
- (IBAction)resume:(id)sender
{
[audioPlayer resume];
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}
- (IBAction)stop:(id)sender
{
[audioPlayer stop];
[self sendMetaData];
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}
//called by double-clicking on table
- (void)playEntryAtIndex:(NSInteger)i
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{
[self playEntryAtIndex:i startPaused:NO andSeekTo:[NSNumber numberWithDouble:0.0]];
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}
- (void)playEntryAtIndex:(NSInteger)i startPaused:(BOOL)paused
{
PlaylistEntry *pe = [playlistController entryAtIndex:i];
[self playEntry:pe startPaused:paused andSeekTo:[NSNumber numberWithDouble:0.0]];
}
- (void)playEntryAtIndex:(NSInteger)i startPaused:(BOOL)paused andSeekTo:(id)offset
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{
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PlaylistEntry *pe = [playlistController entryAtIndex:i];
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[self playEntry:pe startPaused:paused andSeekTo:offset];
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}
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- (IBAction)play:(id)sender
{
if ([playlistView selectedRow] == -1)
[playlistView selectRowIndexes:[NSIndexSet indexSetWithIndex:0] byExtendingSelection:NO];
if ([playlistView selectedRow] > -1)
[self playEntryAtIndex:(int)[playlistView selectedRow]];
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}
NSDictionary * makeRGInfo(PlaylistEntry *pe)
{
NSMutableDictionary * dictionary = [NSMutableDictionary dictionary];
if ([pe replayGainAlbumGain] != 0)
[dictionary setObject:[NSNumber numberWithFloat:[pe replayGainAlbumGain]] forKey:@"replayGainAlbumGain"];
if ([pe replayGainAlbumPeak] != 0)
[dictionary setObject:[NSNumber numberWithFloat:[pe replayGainAlbumPeak]] forKey:@"replayGainAlbumPeak"];
if ([pe replayGainTrackGain] != 0)
[dictionary setObject:[NSNumber numberWithFloat:[pe replayGainTrackGain]] forKey:@"replayGainTrackGain"];
if ([pe replayGainTrackPeak] != 0)
[dictionary setObject:[NSNumber numberWithFloat:[pe replayGainTrackPeak]] forKey:@"replayGainTrackPeak"];
if ([pe volume] != 1)
[dictionary setObject:[NSNumber numberWithFloat:[pe volume]] forKey:@"volume"];
return dictionary;
}
- (void)playEntry:(PlaylistEntry *)pe
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{
[self playEntry:pe startPaused:NO andSeekTo:[NSNumber numberWithDouble:0.0]];
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}
- (void)playEntry:(PlaylistEntry *)pe startPaused:(BOOL)paused
{
[self playEntry:pe startPaused:paused andSeekTo:[NSNumber numberWithDouble:0.0]];
}
- (void)playEntry:(PlaylistEntry *)pe startPaused:(BOOL)paused andSeekTo:(id)offset
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{
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if (playbackStatus != CogStatusStopped && playbackStatus != CogStatusStopping)
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[self stop:self];
DLog(@"PLAYLIST CONTROLLER: %@", [playlistController class]);
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[playlistController setCurrentEntry:pe];
[self setPosition:[offset doubleValue]];
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if (pe == nil)
return;
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BOOL loadData = YES;
NSString * urlScheme = [[pe URL] scheme];
if ([urlScheme isEqualToString:@"http"] ||
[urlScheme isEqualToString:@"https"])
loadData = NO;
#if 0
// Race here, but the worst that could happen is we re-read the data
if ([pe metadataLoaded] != YES) {
[pe performSelectorOnMainThread:@selector(setMetadata:) withObject:[playlistLoader readEntryInfo:pe] waitUntilDone:YES];
}
#elif 0
// Racing with this version is less likely to jam up the main thread
if ([pe metadataLoaded] != YES) {
NSArray * entries = [NSArray arrayWithObject:pe];
[playlistLoader loadInfoForEntries:entries];
}
#else
// Let's do it this way instead
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if ([pe metadataLoaded] != YES && loadData == YES) {
NSArray *entries = [NSArray arrayWithObject:pe];
[playlistLoader performSelectorInBackground:@selector(loadInfoForEntries:) withObject:entries];
}
#endif
[self sendMetaData];
[audioPlayer play:[pe URL] withUserInfo:pe withRGInfo:makeRGInfo(pe) startPaused:paused andSeekTo:[offset doubleValue]];
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}
- (IBAction)next:(id)sender
{
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if ([playlistController next] == NO)
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return;
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[self playEntry:[playlistController currentEntry]];
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}
- (IBAction)prev:(id)sender
{
if ([playlistController prev] == NO)
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return;
[self playEntry:[playlistController currentEntry]];
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}
- (void)updatePosition:(id)sender
{
double pos = [audioPlayer amountPlayed];
[self setPosition:pos];
[[playlistController currentEntry] setCurrentPosition:pos];
[self sendMetaData];
}
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- (IBAction)seek:(id)sender
{
double time = [sender doubleValue];
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[audioPlayer seekToTime:time];
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[self setPosition:time];
[[playlistController currentEntry] setCurrentPosition:time];
[self sendMetaData];
}
- (IBAction)seek:(id)sender toTime:(NSTimeInterval)position
{
double time = (double)(position);
[audioPlayer seekToTime:time];
[self setPosition:time];
[[playlistController currentEntry] setCurrentPosition:time];
}
- (IBAction)spam
{
NSPasteboard *pboard = [NSPasteboard generalPasteboard];
[pboard clearContents];
[pboard writeObjects:[NSArray arrayWithObjects:[[playlistController currentEntry] spam], nil]];
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}
- (IBAction)eventSeekForward:(id)sender
{
[self seekForward:DEFAULT_SEEK];
}
- (void)seekForward:(double)amount
{
double seekTo = [audioPlayer amountPlayed] + amount;
if (seekTo > [[[playlistController currentEntry] length] doubleValue])
{
[self next:self];
}
else
{
[audioPlayer seekToTime:seekTo];
[self setPosition:seekTo];
}
[self sendMetaData];
}
- (IBAction)eventSeekBackward:(id)sender
{
[self seekBackward:DEFAULT_SEEK];
}
- (void)seekBackward:(double)amount
{
double seekTo = [audioPlayer amountPlayed] - amount;
if (seekTo < 0)
seekTo = 0;
[audioPlayer seekToTime:seekTo];
[self setPosition:seekTo];
[self sendMetaData];
}
/*
- (void)changePlayButtonImage:(NSString *)name
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{
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NSImage *img = [NSImage imageNamed:name];
// [img retain];
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if (img == nil)
{
DLog(@"Error loading image!");
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}
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[playbackButtons setImage:img forSegment:1];
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}
*/
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- (IBAction)changeVolume:(id)sender
{
DLog(@"VOLUME: %lf, %lf", [sender doubleValue], linearToLogarithmic([sender doubleValue]));
[audioPlayer setVolume:linearToLogarithmic([sender doubleValue])];
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[[NSUserDefaults standardUserDefaults] setDouble:[audioPlayer volume] forKey:@"volume"];
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}
/* selector for NSTimer - gets passed the Timer object itself
and the appropriate userInfo, which in this case is an NSNumber
containing the current volume before we start fading. */
- (void)audioFadeDown:(NSTimer *)audioTimer
{
double volume = [audioPlayer volume];
double originalVolume = [[audioTimer userInfo] doubleValue];
double down = originalVolume/10;
DLog(@"VOLUME IS %lf", volume);
if (volume > 0.0001) //YAY! Roundoff error!
{
[audioPlayer volumeDown:down];
}
else // volume is at 0 or below, we are ready to release the timer and move on
{
[audioPlayer pause];
[audioPlayer setVolume:originalVolume];
[volumeSlider setDoubleValue: logarithmicToLinear(originalVolume)];
[audioTimer invalidate];
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fading = NO;
}
}
- (void)audioFadeUp:(NSTimer *)audioTimer
{
double volume = [audioPlayer volume];
double originalVolume = [[audioTimer userInfo] doubleValue];
double up = originalVolume/10;
DLog(@"VOLUME IS %lf", volume);
if (originalVolume - volume > 0.0001)
{
if ((volume + up) > originalVolume)
[audioPlayer volumeUp:(originalVolume - volume)];
else
[audioPlayer volumeUp:up];
}
else // volume is at or near original level, we are ready to release the timer and move on
{
[audioPlayer setVolume:originalVolume];
[volumeSlider setDoubleValue: logarithmicToLinear(originalVolume)];
[audioTimer invalidate];
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fading = NO;
}
}
- (IBAction)fade:(id)sender
{
double time = 0.1;
// we can not allow multiple fade timers to be registered
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if (YES == fading)
return;
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fading = YES;
NSNumber *originalVolume = [NSNumber numberWithDouble: [audioPlayer volume]];
NSTimer *fadeTimer;
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if (playbackStatus == CogStatusPlaying) {
fadeTimer = [NSTimer timerWithTimeInterval:time
target:self
selector:@selector(audioFadeDown:)
userInfo:originalVolume
repeats:YES];
[[NSRunLoop currentRunLoop] addTimer:fadeTimer forMode:NSRunLoopCommonModes];
}
else
{
[audioPlayer setVolume:0];
fadeTimer = [NSTimer timerWithTimeInterval:time
target:self
selector:@selector(audioFadeUp:)
userInfo:originalVolume
repeats:YES];
[[NSRunLoop currentRunLoop] addTimer:fadeTimer forMode:NSRunLoopCommonModes];
[self pauseResume:self];
}
}
- (IBAction)skipToNextAlbum:(id)sender
{
BOOL found = NO;
NSInteger index = [[playlistController currentEntry] index];
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NSString *origAlbum = [[playlistController currentEntry] album];
NSInteger i;
NSString *curAlbum;
PlaylistEntry *pe;
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for (i = 1; i < [[playlistController arrangedObjects] count]; i++)
{
pe = [playlistController entryAtIndex:index + i];
if (pe == nil)
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break;
curAlbum = [pe album];
// check for untagged files, and just play the first untagged one
// we come across
if (curAlbum == nil)
{
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found = YES;
break;
}
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if ([curAlbum caseInsensitiveCompare:origAlbum] != NSOrderedSame)
{
found = YES;
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break;
}
}
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if (found)
{
[self playEntryAtIndex:i + index];
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}
}
- (IBAction)skipToPreviousAlbum:(id)sender
{
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BOOL found = NO;
BOOL foundAlbum = NO;
NSInteger index = [[playlistController currentEntry] index];
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NSString *origAlbum = [[playlistController currentEntry] album];
NSString *curAlbum;
NSInteger i;
PlaylistEntry *pe;
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for (i = 1; i < [[playlistController arrangedObjects] count]; i++)
{
pe = [playlistController entryAtIndex:index - i];
if (pe == nil)
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break;
curAlbum = [pe album];
if (curAlbum == nil)
{
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found = YES;
break;
}
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if ([curAlbum caseInsensitiveCompare:origAlbum] != NSOrderedSame)
{
if (foundAlbum == NO)
{
foundAlbum = YES;
// now we need to move up to the first song in the album, so we'll
// go till we either find index 0, or the first song in the album
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origAlbum = curAlbum;
continue;
}
else
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{
found = YES; // terminate loop
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break;
}
}
}
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if (found || foundAlbum)
{
if (foundAlbum == YES)
i--;
[self playEntryAtIndex:index - i];
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}
}
- (IBAction)volumeDown:(id)sender
{
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double newVolume = [audioPlayer volumeDown:DEFAULT_VOLUME_DOWN];
[volumeSlider setDoubleValue:logarithmicToLinear(newVolume)];
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[[NSUserDefaults standardUserDefaults] setDouble:[audioPlayer volume] forKey:@"volume"];
}
- (IBAction)volumeUp:(id)sender
{
double newVolume;
newVolume = [audioPlayer volumeUp:DEFAULT_VOLUME_UP];
[volumeSlider setDoubleValue:logarithmicToLinear(newVolume)];
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[[NSUserDefaults standardUserDefaults] setDouble:[audioPlayer volume] forKey:@"volume"];
}
- (void)audioPlayer:(AudioPlayer *)player willEndStream:(id)userInfo
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{
PlaylistEntry *curEntry = (PlaylistEntry *)userInfo;
PlaylistEntry *pe;
if (curEntry.stopAfter)
pe = nil;
else
{
pe = [playlistController getNextEntry:curEntry];
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if (pe && [pe metadataLoaded] != YES) {
NSArray * entries = [NSArray arrayWithObject:pe];
[playlistLoader performSelectorInBackground:@selector(loadInfoForEntries:) withObject:entries];
}
}
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if (pe)
[player setNextStream:[pe URL] withUserInfo:pe withRGInfo:makeRGInfo(pe)];
else
[player setNextStream:nil];
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}
- (void)audioPlayer:(AudioPlayer *)player didBeginStream:(id)userInfo
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{
PlaylistEntry *pe = (PlaylistEntry *)userInfo;
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[playlistController setCurrentEntry:pe];
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[self setPosition:0];
[[NSNotificationCenter defaultCenter] postNotificationName:CogPlaybackDidBeginNotficiation object:pe];
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}
- (void)audioPlayer:(AudioPlayer *)player didChangeStatus:(NSNumber *)s userInfo:(id)userInfo
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{
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int status = [s intValue];
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if (status == CogStatusStopped || status == CogStatusPaused)
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{
if (positionTimer)
{
[positionTimer invalidate];
positionTimer = NULL;
}
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if (status == CogStatusStopped)
{
[self setPosition:0];
[self setSeekable:NO]; // the player stopped, disable the slider
[[NSNotificationCenter defaultCenter] postNotificationName:CogPlaybackDidStopNotficiation object:nil];
}
else // paused
{
[[NSNotificationCenter defaultCenter] postNotificationName:CogPlaybackDidPauseNotficiation object:nil];
}
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}
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else if (status == CogStatusPlaying)
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{
if (!positionTimer) {
positionTimer = [NSTimer timerWithTimeInterval:0.2 target:self selector:@selector(updatePosition:) userInfo:nil repeats:YES];
[[NSRunLoop currentRunLoop] addTimer:positionTimer forMode:NSRunLoopCommonModes];
}
[[NSNotificationCenter defaultCenter] postNotificationName:CogPlaybackDidResumeNotficiation object:nil];
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}
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if (status == CogStatusStopped) {
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[playlistController setCurrentEntry:nil];
[self setSeekable:NO]; // the player stopped, disable the slider
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}
else {
[self setSeekable:YES];
}
switch (status) {
case CogStatusPlaying:
DLog(@"PLAYING!");
break;
case CogStatusPaused:
DLog(@"PAUSED!");
break;
default:
DLog(@"STOPED!");
break;
}
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if (status == CogStatusStopped) {
status = CogStatusStopping;
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 3 * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
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if ([self playbackStatus] == CogStatusStopping)
[self setPlaybackStatus:CogStatusStopped];
});
}
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[self setPlaybackStatus:status];
// If we don't send it here, if we've stopped, then the NPIC will be stuck at the last file we played.
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[self sendMetaData];
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}
- (void)playlistDidChange:(PlaylistController *)p
{
[audioPlayer resetNextStreams];
}
- (void)setPosition:(double)p
{
position = p;
[[playlistController currentEntry] setCurrentPosition:p];
}
- (double)position
{
return position;
}
- (void)setSeekable:(BOOL)s
{
seekable = s;
}
- (BOOL)seekable
{
return seekable && [[playlistController currentEntry] seekable];
}
- (void)sendMetaData {
MPNowPlayingInfoCenter * defaultCenter = [MPNowPlayingInfoCenter defaultCenter];
PlaylistEntry * entry = [playlistController currentEntry];
NSMutableDictionary *songInfo = [[NSMutableDictionary alloc] init];
if (entry) {
if ([entry title])
[songInfo setObject:[entry title] forKey:MPMediaItemPropertyTitle];
if ([entry artist])
[songInfo setObject:[entry artist] forKey:MPMediaItemPropertyArtist];
if ([entry album])
[songInfo setObject:[entry album] forKey:MPMediaItemPropertyAlbumTitle];
if ([entry albumArt]) {
// can't do && with @available
if (@available(macOS 10.13.2, *)) {
CGSize artworkSize = CGSizeMake(500, 500);
MPMediaItemArtwork *mpArtwork = [[MPMediaItemArtwork alloc] initWithBoundsSize:artworkSize requestHandler:^NSImage * _Nonnull(CGSize size) {
return [entry albumArt];
}];
[songInfo setObject:mpArtwork forKey:MPMediaItemPropertyArtwork];
}
}
// I don't know what NPIC does with these since they aren't exposed in UI, but if we have them, use it.
// There's a bunch of other metadata, but PlaylistEntry can't represent a lot of it.
if ([entry genre])
[songInfo setObject:[entry genre] forKey:MPMediaItemPropertyGenre];
if ([entry year]) {
// If PlaylistEntry can represent a full date like some tag formats can do, change it
NSCalendar *calendar = [NSCalendar currentCalendar];
NSDate *releaseYear = [calendar dateWithEra:1 year:[[entry year] intValue] month:0 day:0 hour:0 minute:0 second:0 nanosecond:0];
[songInfo setObject:releaseYear forKey:MPMediaItemPropertyReleaseDate];
}
[songInfo setObject:[NSNumber numberWithFloat:[entry currentPosition]] forKey:MPNowPlayingInfoPropertyElapsedPlaybackTime];
[songInfo setObject:[entry length] forKey:MPMediaItemPropertyPlaybackDuration];
[songInfo setObject:[NSNumber numberWithFloat:[entry index]] forKey:MPMediaItemPropertyPersistentID];
}
switch (playbackStatus) {
case CogStatusPlaying:
defaultCenter.playbackState = MPNowPlayingPlaybackStatePlaying;
break;
case CogStatusPaused:
defaultCenter.playbackState = MPNowPlayingPlaybackStatePaused;
break;
default:
defaultCenter.playbackState = MPNowPlayingPlaybackStateStopped;
break;
}
[defaultCenter setNowPlayingInfo:songInfo];
}
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@end