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-/*************************************************************************/
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-/* native_video_view.m */
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-/*************************************************************************/
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-/* This file is part of: */
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-/* GODOT ENGINE */
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-/* https://godotengine.org */
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-/*************************************************************************/
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-/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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-/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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-/* */
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-/* Permission is hereby granted, free of charge, to any person obtaining */
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-/* a copy of this software and associated documentation files (the */
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-/* "Software"), to deal in the Software without restriction, including */
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-/* without limitation the rights to use, copy, modify, merge, publish, */
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-/* distribute, sublicense, and/or sell copies of the Software, and to */
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-/* permit persons to whom the Software is furnished to do so, subject to */
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-/* the following conditions: */
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-/* */
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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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-/* */
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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 NONINFRINGEMENT.*/
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-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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-/*************************************************************************/
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-
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-#import "native_video_view.h"
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-#import <AVFoundation/AVFoundation.h>
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-
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-@interface GodotNativeVideoView ()
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-
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-@property(strong, nonatomic) AVAsset *avAsset;
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-@property(strong, nonatomic) AVPlayerItem *avPlayerItem;
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-@property(strong, nonatomic) AVPlayer *avPlayer;
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-@property(strong, nonatomic) AVPlayerLayer *avPlayerLayer;
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-@property(assign, nonatomic) CMTime videoCurrentTime;
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-@property(assign, nonatomic) BOOL isVideoCurrentlyPlaying;
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-
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-@end
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-
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-@implementation GodotNativeVideoView
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-
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-- (instancetype)initWithFrame:(CGRect)frame {
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- self = [super initWithFrame:frame];
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-
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- if (self) {
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- [self godot_commonInit];
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- }
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-
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- return self;
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-}
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-
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-- (instancetype)initWithCoder:(NSCoder *)coder {
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- self = [super initWithCoder:coder];
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-
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- if (self) {
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- [self godot_commonInit];
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- }
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-
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- return self;
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-}
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-
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-- (void)godot_commonInit {
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- self.isVideoCurrentlyPlaying = NO;
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- self.videoCurrentTime = kCMTimeZero;
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-
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- [self observeVideoAudio];
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-}
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-
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-- (void)layoutSubviews {
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- [super layoutSubviews];
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-
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- self.avPlayerLayer.frame = self.bounds;
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-}
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-
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-- (void)observeVideoAudio {
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- printf("******** adding observer for sound routing changes\n");
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- [[NSNotificationCenter defaultCenter]
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- addObserver:self
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- selector:@selector(audioRouteChangeListenerCallback:)
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- name:AVAudioSessionRouteChangeNotification
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- object:nil];
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-}
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-
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-- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
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- if (object == self.avPlayerItem && [keyPath isEqualToString:@"status"]) {
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- [self handleVideoOrPlayerStatus];
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- }
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-
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- if (object == self.avPlayer && [keyPath isEqualToString:@"rate"]) {
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- [self handleVideoPlayRate];
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- }
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-}
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-
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-// MARK: Video Audio
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-
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-- (void)audioRouteChangeListenerCallback:(NSNotification *)notification {
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- printf("*********** route changed!\n");
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- NSDictionary *interuptionDict = notification.userInfo;
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-
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- NSInteger routeChangeReason = [[interuptionDict valueForKey:AVAudioSessionRouteChangeReasonKey] integerValue];
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-
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- switch (routeChangeReason) {
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- case AVAudioSessionRouteChangeReasonNewDeviceAvailable: {
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- NSLog(@"AVAudioSessionRouteChangeReasonNewDeviceAvailable");
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- NSLog(@"Headphone/Line plugged in");
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- } break;
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- case AVAudioSessionRouteChangeReasonOldDeviceUnavailable: {
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- NSLog(@"AVAudioSessionRouteChangeReasonOldDeviceUnavailable");
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- NSLog(@"Headphone/Line was pulled. Resuming video play....");
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- if ([self isVideoPlaying]) {
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- dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 0.5f * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
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- [self.avPlayer play]; // NOTE: change this line according your current player implementation
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- NSLog(@"resumed play");
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- });
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- }
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- } break;
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- case AVAudioSessionRouteChangeReasonCategoryChange: {
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- // called at start - also when other audio wants to play
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- NSLog(@"AVAudioSessionRouteChangeReasonCategoryChange");
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- } break;
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- }
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-}
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-
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-// MARK: Native Video Player
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-
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-- (void)handleVideoOrPlayerStatus {
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- if (self.avPlayerItem.status == AVPlayerItemStatusFailed || self.avPlayer.status == AVPlayerStatusFailed) {
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- [self stopVideo];
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- }
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-
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- if (self.avPlayer.status == AVPlayerStatusReadyToPlay && self.avPlayerItem.status == AVPlayerItemStatusReadyToPlay && CMTimeCompare(self.videoCurrentTime, kCMTimeZero) == 0) {
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- // NSLog(@"time: %@", self.video_current_time);
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- [self.avPlayer seekToTime:self.videoCurrentTime];
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- self.videoCurrentTime = kCMTimeZero;
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- }
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-}
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-
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-- (void)handleVideoPlayRate {
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- NSLog(@"Player playback rate changed: %.5f", self.avPlayer.rate);
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- if ([self isVideoPlaying] && self.avPlayer.rate == 0.0 && !self.avPlayer.error) {
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- dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 0.5f * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
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- [self.avPlayer play]; // NOTE: change this line according your current player implementation
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- NSLog(@"resumed play");
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- });
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-
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- NSLog(@" . . . PAUSED (or just started)");
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- }
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-}
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-
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-- (BOOL)playVideoAtPath:(NSString *)filePath volume:(float)videoVolume audio:(NSString *)audioTrack subtitle:(NSString *)subtitleTrack {
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- self.avAsset = [AVAsset assetWithURL:[NSURL fileURLWithPath:filePath]];
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-
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- self.avPlayerItem = [AVPlayerItem playerItemWithAsset:self.avAsset];
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- [self.avPlayerItem addObserver:self forKeyPath:@"status" options:0 context:nil];
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-
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- self.avPlayer = [AVPlayer playerWithPlayerItem:self.avPlayerItem];
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- self.avPlayerLayer = [AVPlayerLayer playerLayerWithPlayer:self.avPlayer];
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-
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- [self.avPlayer addObserver:self forKeyPath:@"status" options:0 context:nil];
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- [[NSNotificationCenter defaultCenter]
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- addObserver:self
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- selector:@selector(playerItemDidReachEnd:)
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- name:AVPlayerItemDidPlayToEndTimeNotification
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- object:[self.avPlayer currentItem]];
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-
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- [self.avPlayer addObserver:self forKeyPath:@"rate" options:NSKeyValueObservingOptionNew context:0];
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-
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- [self.avPlayerLayer setFrame:self.bounds];
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- [self.layer addSublayer:self.avPlayerLayer];
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- [self.avPlayer play];
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-
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- AVMediaSelectionGroup *audioGroup = [self.avAsset mediaSelectionGroupForMediaCharacteristic:AVMediaCharacteristicAudible];
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-
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- NSMutableArray *allAudioParams = [NSMutableArray array];
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- for (id track in audioGroup.options) {
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- NSString *language = [[track locale] localeIdentifier];
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- NSLog(@"subtitle lang: %@", language);
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-
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- if ([language isEqualToString:audioTrack]) {
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- AVMutableAudioMixInputParameters *audioInputParams = [AVMutableAudioMixInputParameters audioMixInputParameters];
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- [audioInputParams setVolume:videoVolume atTime:kCMTimeZero];
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- [audioInputParams setTrackID:[track trackID]];
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- [allAudioParams addObject:audioInputParams];
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-
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- AVMutableAudioMix *audioMix = [AVMutableAudioMix audioMix];
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- [audioMix setInputParameters:allAudioParams];
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-
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- [self.avPlayer.currentItem selectMediaOption:track inMediaSelectionGroup:audioGroup];
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- [self.avPlayer.currentItem setAudioMix:audioMix];
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-
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- break;
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- }
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- }
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-
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- AVMediaSelectionGroup *subtitlesGroup = [self.avAsset mediaSelectionGroupForMediaCharacteristic:AVMediaCharacteristicLegible];
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- NSArray *useableTracks = [AVMediaSelectionGroup mediaSelectionOptionsFromArray:subtitlesGroup.options withoutMediaCharacteristics:[NSArray arrayWithObject:AVMediaCharacteristicContainsOnlyForcedSubtitles]];
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-
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- for (id track in useableTracks) {
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- NSString *language = [[track locale] localeIdentifier];
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- NSLog(@"subtitle lang: %@", language);
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-
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- if ([language isEqualToString:subtitleTrack]) {
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- [self.avPlayer.currentItem selectMediaOption:track inMediaSelectionGroup:subtitlesGroup];
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- break;
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- }
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- }
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-
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- self.isVideoCurrentlyPlaying = YES;
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-
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- return true;
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-}
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-
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-- (BOOL)isVideoPlaying {
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- if (self.avPlayer.error) {
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- printf("Error during playback\n");
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- }
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- return (self.avPlayer.rate > 0 && !self.avPlayer.error);
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-}
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-
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-- (void)pauseVideo {
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- self.videoCurrentTime = self.avPlayer.currentTime;
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- [self.avPlayer pause];
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- self.isVideoCurrentlyPlaying = NO;
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-}
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-
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-- (void)unpauseVideo {
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- [self.avPlayer play];
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- self.isVideoCurrentlyPlaying = YES;
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-}
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-
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-- (void)playerItemDidReachEnd:(NSNotification *)notification {
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- [self stopVideo];
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-}
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-
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-- (void)finishPlayingVideo {
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- [self.avPlayer pause];
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- [self.avPlayerLayer removeFromSuperlayer];
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- self.avPlayerLayer = nil;
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-
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- if (self.avPlayerItem) {
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- [self.avPlayerItem removeObserver:self forKeyPath:@"status"];
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- self.avPlayerItem = nil;
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- }
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-
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- if (self.avPlayer) {
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- [self.avPlayer removeObserver:self forKeyPath:@"status"];
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- self.avPlayer = nil;
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- }
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-
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- self.avAsset = nil;
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-
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- self.isVideoCurrentlyPlaying = NO;
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-}
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-
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-- (void)stopVideo {
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- [self finishPlayingVideo];
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-
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- [self removeFromSuperview];
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-}
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-
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-@end
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Rémi Verschelde