271 lines
9.4 KiB
Objective-C
271 lines
9.4 KiB
Objective-C
/*************************************************************************/
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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) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2022 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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#import "native_video_view.h"
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#import <AVFoundation/AVFoundation.h>
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@interface GodotNativeVideoView ()
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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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@end
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@implementation GodotNativeVideoView
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- (instancetype)initWithFrame:(CGRect)frame {
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self = [super initWithFrame:frame];
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if (self) {
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[self godot_commonInit];
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}
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return self;
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}
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- (instancetype)initWithCoder:(NSCoder *)coder {
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self = [super initWithCoder:coder];
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if (self) {
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[self godot_commonInit];
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}
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return self;
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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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[self observeVideoAudio];
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}
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- (void)layoutSubviews {
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[super layoutSubviews];
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self.avPlayerLayer.frame = self.bounds;
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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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- (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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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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// MARK: Video Audio
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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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NSInteger routeChangeReason = [[interuptionDict valueForKey:AVAudioSessionRouteChangeReasonKey] integerValue];
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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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// MARK: Native Video Player
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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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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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- (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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NSLog(@" . . . PAUSED (or just started)");
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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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self.avPlayerItem = [AVPlayerItem playerItemWithAsset:self.avAsset];
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[self.avPlayerItem addObserver:self forKeyPath:@"status" options:0 context:nil];
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self.avPlayer = [AVPlayer playerWithPlayerItem:self.avPlayerItem];
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self.avPlayerLayer = [AVPlayerLayer playerLayerWithPlayer:self.avPlayer];
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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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[self.avPlayer addObserver:self forKeyPath:@"rate" options:NSKeyValueObservingOptionNew context:0];
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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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AVMediaSelectionGroup *audioGroup = [self.avAsset mediaSelectionGroupForMediaCharacteristic:AVMediaCharacteristicAudible];
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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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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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AVMutableAudioMix *audioMix = [AVMutableAudioMix audioMix];
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[audioMix setInputParameters:allAudioParams];
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[self.avPlayer.currentItem selectMediaOption:track inMediaSelectionGroup:audioGroup];
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[self.avPlayer.currentItem setAudioMix:audioMix];
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break;
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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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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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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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self.isVideoCurrentlyPlaying = YES;
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return true;
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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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- (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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- (void)unfocusVideo {
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[self.avPlayer pause];
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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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- (void)playerItemDidReachEnd:(NSNotification *)notification {
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[self stopVideo];
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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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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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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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self.avAsset = nil;
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self.isVideoCurrentlyPlaying = NO;
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}
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- (void)stopVideo {
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[self finishPlayingVideo];
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[self removeFromSuperview];
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}
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@end
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