mirror of https://github.com/oxen-io/session-ios
Add audio attachment player.
* Fix two bugs around play/pause button appearance. * Fix bugs around stopping playback when leaving view/entering background. * Fix bugs around cleaning up playback state when leaving view/entering background. * Fix audio playback vs. hardware mute button. * Improve handling of invalid audio attachments. // FREEBIEpull/1/head
Matthew Chen
8 years ago
parent
61d72f8e95
commit
980d726a48
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//
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// Copyright (c) 2017 Open Whisper Systems. All rights reserved.
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//
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#import <AVFoundation/AVFoundation.h>
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@class TSVideoAttachmentAdapter;
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@class YapDatabaseConnection;
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@interface OWSAudioAttachmentPlayer : NSObject <AVAudioPlayerDelegate>
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@property (nonatomic, readonly) TSVideoAttachmentAdapter *mediaAdapter;
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- (instancetype)initWithMediaAdapter:(TSVideoAttachmentAdapter *)mediaAdapter
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databaseConnection:(YapDatabaseConnection *)databaseConnection;
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- (void)play;
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- (void)pause;
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- (void)stop;
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- (void)togglePlayState;
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@end
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//
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// Copyright (c) 2017 Open Whisper Systems. All rights reserved.
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//
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#import "OWSAudioAttachmentPlayer.h"
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#import "TSAttachment.h"
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#import "TSAttachmentStream.h"
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#import "TSVideoAttachmentAdapter.h"
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#import "ViewControllerUtils.h"
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#import <YapDatabase/YapDatabaseConnection.h>
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@interface OWSAudioAttachmentPlayer ()
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@property (nonatomic) TSAttachmentStream *attachmentStream;
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@property (nonatomic, nullable) AVAudioPlayer *audioPlayer;
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@property (nonatomic, nullable) NSTimer *audioPlayerPoller;
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@end
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#pragma mark -
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@implementation OWSAudioAttachmentPlayer
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- (instancetype)initWithMediaAdapter:(TSVideoAttachmentAdapter *)mediaAdapter
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databaseConnection:(YapDatabaseConnection *)databaseConnection
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{
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self = [super init];
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if (!self) {
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return self;
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}
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OWSAssert(mediaAdapter);
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OWSAssert([mediaAdapter isAudio]);
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OWSAssert(mediaAdapter.attachmentId);
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OWSAssert(databaseConnection);
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_mediaAdapter = mediaAdapter;
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__block TSAttachment *attachment = nil;
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[databaseConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
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attachment = [TSAttachment fetchObjectWithUniqueID:mediaAdapter.attachmentId transaction:transaction];
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}];
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OWSAssert(attachment);
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if ([attachment isKindOfClass:[TSAttachmentStream class]]) {
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self.attachmentStream = (TSAttachmentStream *)attachment;
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}
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OWSAssert(self.attachmentStream);
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(applicationDidEnterBackground:)
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name:UIApplicationDidEnterBackgroundNotification
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object:nil];
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return self;
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}
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- (void)dealloc
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{
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[[NSNotificationCenter defaultCenter] removeObserver:self];
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[self stop];
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}
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- (void)applicationDidEnterBackground:(NSNotification *)notification
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{
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[self stop];
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}
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#pragma mark - Methods
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- (void)play
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{
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OWSAssert(self.attachmentStream);
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OWSAssert(![self.mediaAdapter isAudioPlaying]);
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[ViewControllerUtils setAudioIgnoresHardwareMuteSwitch:YES];
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[self.audioPlayerPoller invalidate];
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self.mediaAdapter.isAudioPlaying = YES;
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self.mediaAdapter.isPaused = NO;
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[self.mediaAdapter setAudioIconToPause];
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if (!self.audioPlayer) {
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NSError *error;
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self.audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:self.attachmentStream.mediaURL error:&error];
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if (error) {
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DDLogError(@"%@ error: %@", self.tag, error);
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[self stop];
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return;
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}
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self.audioPlayer.delegate = self;
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}
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[self.audioPlayer prepareToPlay];
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[self.audioPlayer play];
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self.audioPlayerPoller = [NSTimer scheduledTimerWithTimeInterval:.05
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target:self
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selector:@selector(audioPlayerUpdated:)
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userInfo:nil
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repeats:YES];
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}
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- (void)pause
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{
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OWSAssert(self.attachmentStream);
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self.mediaAdapter.isAudioPlaying = NO;
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self.mediaAdapter.isPaused = YES;
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[self.audioPlayer pause];
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[self.audioPlayerPoller invalidate];
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double current = [self.audioPlayer currentTime] / [_audioPlayer duration];
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[self.mediaAdapter setAudioProgressFromFloat:(float)current];
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[self.mediaAdapter setAudioIconToPlay];
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}
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- (void)stop
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{
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OWSAssert(self.attachmentStream);
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[self.audioPlayer pause];
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[self.audioPlayerPoller invalidate];
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[self.mediaAdapter setAudioProgressFromFloat:0];
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[self.mediaAdapter setDurationOfAudio:_audioPlayer.duration];
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[self.mediaAdapter setAudioIconToPlay];
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self.mediaAdapter.isAudioPlaying = NO;
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self.mediaAdapter.isPaused = NO;
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}
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- (void)togglePlayState
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{
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OWSAssert(self.attachmentStream);
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if (self.mediaAdapter.isAudioPlaying) {
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[self pause];
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} else {
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[self play];
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}
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}
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#pragma mark - Events
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- (void)audioPlayerUpdated:(NSTimer *)timer
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{
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OWSAssert(self.audioPlayer);
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OWSAssert(self.audioPlayerPoller);
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double current = [self.audioPlayer currentTime] / [self.audioPlayer duration];
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double interval = [self.audioPlayer duration] - [self.audioPlayer currentTime];
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[self.mediaAdapter setDurationOfAudio:interval];
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[self.mediaAdapter setAudioProgressFromFloat:(float)current];
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}
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- (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag
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{
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[self stop];
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}
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#pragma mark - Logging
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+ (NSString *)tag
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{
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return [NSString stringWithFormat:@"[%@]", self.class];
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}
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- (NSString *)tag
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{
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return self.class.tag;
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}
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@end
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