Support loading multiple sideloaded text tracks
This commit is contained in:
Hampton Maxwell
parent
572c11a1dc
commit
93ce4d6b9f
124
ios/RCTVideo.m
124
ios/RCTVideo.m
@ -47,7 +47,6 @@ static NSString *const timedMetadata = @"timedMetadata";
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BOOL _allowsExternalPlayback;
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NSArray * _textTracks;
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NSDictionary * _selectedTextTrack;
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NSDictionary * _selectedText;
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BOOL _playbackStalled;
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BOOL _playInBackground;
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BOOL _playWhenInactive;
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@ -352,67 +351,67 @@ static NSString *const timedMetadata = @"timedMetadata";
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bool isNetwork = [RCTConvert BOOL:[source objectForKey:@"isNetwork"]];
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bool isAsset = [RCTConvert BOOL:[source objectForKey:@"isAsset"]];
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NSString *uri = [source objectForKey:@"uri"];
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NSString *subtitleUri = _selectedText[@"uri"];
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NSString *type = [source objectForKey:@"type"];
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NSDictionary *headers = [source objectForKey:@"requestHeaders"];
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AVURLAsset *asset;
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AVURLAsset *subAsset;
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NSMutableDictionary *assetOptions = [[NSMutableDictionary alloc] init];
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if (isNetwork) {
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NSMutableDictionary *assetOptions = [[NSMutableDictionary alloc]init];
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/* Per #1091, this is not a public API. We need to either get approval from Apple to use this
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* or use a different approach.
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NSDictionary *headers = [source objectForKey:@"requestHeaders"];
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if ([headers count] > 0) {
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[assetOptions setObject:headers forKey:@"AVURLAssetHTTPHeaderFieldsKey"];
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}
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*/
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NSArray *cookies = [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies];
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[assetOptions setObject:cookies forKey:AVURLAssetHTTPCookiesKey];
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asset = [AVURLAsset URLAssetWithURL:[NSURL URLWithString:uri] options:assetOptions];
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subAsset = [AVURLAsset URLAssetWithURL:[NSURL URLWithString:subtitleUri] options:assetOptions];
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}
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else if (isAsset) // assets on iOS have to be in the Documents folder
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{
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} else if (isAsset) { // assets on iOS have to be in the Documents folder
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asset = [AVURLAsset URLAssetWithURL:[self urlFilePath:uri] options:nil];
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subAsset = [AVURLAsset URLAssetWithURL:[self urlFilePath:subtitleUri] options:nil];
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}
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else // file passed in through JS, or an asset in the Xcode project
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{
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} else { // file passed in through JS, or an asset in the Xcode project
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asset = [AVURLAsset URLAssetWithURL:[[NSURL alloc] initFileURLWithPath:[[NSBundle mainBundle] pathForResource:uri ofType:type]] options:nil];
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}
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if (!_textTracks || !_selectedText) return [AVPlayerItem playerItemWithAsset:asset];
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// otherwise sideload text tracks
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AVAssetTrack *videoAsset = [asset tracksWithMediaType:AVMediaTypeVideo].firstObject;
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AVAssetTrack *audioAsset = [asset tracksWithMediaType:AVMediaTypeAudio].firstObject;
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AVAssetTrack *textAsset = [subAsset tracksWithMediaType:AVMediaTypeText].firstObject;
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NSLog(@"assets: %@,%@,%@", videoAsset, audioAsset, textAsset);
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if (!_textTracks) {
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return [AVPlayerItem playerItemWithAsset:asset];
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}
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// sideload text tracks
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AVMutableComposition *mixComposition = [[AVMutableComposition alloc] init];
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AVAssetTrack *videoAsset = [asset tracksWithMediaType:AVMediaTypeVideo].firstObject;
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AVMutableCompositionTrack *videoCompTrack = [mixComposition addMutableTrackWithMediaType:AVMediaTypeVideo preferredTrackID:kCMPersistentTrackID_Invalid];
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AVMutableCompositionTrack *audioCompTrack = [mixComposition addMutableTrackWithMediaType:AVMediaTypeAudio preferredTrackID:kCMPersistentTrackID_Invalid];
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AVMutableCompositionTrack *subtitleCompTrack = [mixComposition addMutableTrackWithMediaType:AVMediaTypeText preferredTrackID:kCMPersistentTrackID_Invalid];
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[videoCompTrack insertTimeRange:CMTimeRangeMake(kCMTimeZero, videoAsset.timeRange.duration)
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ofTrack:videoAsset
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atTime:kCMTimeZero
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error:nil];
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ofTrack:videoAsset
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atTime:kCMTimeZero
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error:nil];
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AVAssetTrack *audioAsset = [asset tracksWithMediaType:AVMediaTypeAudio].firstObject;
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AVMutableCompositionTrack *audioCompTrack = [mixComposition addMutableTrackWithMediaType:AVMediaTypeAudio preferredTrackID:kCMPersistentTrackID_Invalid];
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[audioCompTrack insertTimeRange:CMTimeRangeMake(kCMTimeZero, videoAsset.timeRange.duration)
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ofTrack:audioAsset
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atTime:kCMTimeZero
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error:nil];
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[subtitleCompTrack insertTimeRange:CMTimeRangeMake(kCMTimeZero, videoAsset.timeRange.duration)
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ofTrack:textAsset
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atTime:kCMTimeZero
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error:nil];
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ofTrack:audioAsset
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atTime:kCMTimeZero
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error:nil];
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for (int i = 0; i < _textTracks.count; ++i) {
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AVURLAsset *textURLAsset;
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NSString *textUri = [_textTracks objectAtIndex:i][@"uri"];
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if ([[textUri lowercaseString] hasPrefix:@"http"]) {
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textURLAsset = [AVURLAsset URLAssetWithURL:[NSURL URLWithString:textUri] options:assetOptions];
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} else {
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textURLAsset = [AVURLAsset URLAssetWithURL:[self urlFilePath:textUri] options:nil];
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}
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AVAssetTrack *textTrackAsset = [textURLAsset tracksWithMediaType:AVMediaTypeText].firstObject;
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AVMutableCompositionTrack *textCompTrack = [mixComposition
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addMutableTrackWithMediaType:AVMediaTypeText
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preferredTrackID:kCMPersistentTrackID_Invalid];
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[textCompTrack insertTimeRange:CMTimeRangeMake(kCMTimeZero, videoAsset.timeRange.duration)
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ofTrack:textTrackAsset
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atTime:kCMTimeZero
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error:nil];
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}
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return [AVPlayerItem playerItemWithAsset:mixComposition];
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}
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@ -425,7 +424,7 @@ static NSString *const timedMetadata = @"timedMetadata";
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if (items && ![items isEqual:[NSNull null]] && items.count > 0) {
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NSMutableArray *array = [NSMutableArray new];
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for (AVMetadataItem *item in items) {
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NSString *value = item.value;
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NSString *value = (NSString *)item.value;
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NSString *identifier = item.identifier;
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if (![value isEqual: [NSNull null]]) {
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@ -729,30 +728,36 @@ static NSString *const timedMetadata = @"timedMetadata";
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}
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- (void)setSelectedTextTrack:(NSDictionary *)selectedTextTrack {
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_selectedTextTrack = selectedTextTrack;
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if (_textTracks) {
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[self setSideloadedText];
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}
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else [self setStreamingText];
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_selectedTextTrack = selectedTextTrack;
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if (_textTracks) {
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[self setSideloadedText];
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} else {
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[self setStreamingText];
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}
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}
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- (void) setSideloadedText {
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NSString *type = _selectedTextTrack[@"type"];
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NSArray* textTracks = [self getTextTrackInfo];
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_selectedText = nil;
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// The first few tracks will be audio & video track
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int firstTextIndex = 0;
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for (firstTextIndex = 0; firstTextIndex < _player.currentItem.tracks.count; ++firstTextIndex) {
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if ([_player.currentItem.tracks[firstTextIndex].assetTrack hasMediaCharacteristic:AVMediaCharacteristicLegible]) {
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break;
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}
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}
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int selectedTrackIndex = -1;
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if ([type isEqualToString:@"disabled"]) {
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// Do nothing. We want to ensure option is nil
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} else if ([type isEqualToString:@"language"]) {
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NSString *selectedValue = _selectedTextTrack[@"value"];
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for (int i = 0; i < textTracks.count; ++i) {
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NSDictionary *currentTextTrack = [textTracks objectAtIndex:i];
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if ([selectedValue isEqualToString:currentTextTrack[@"language"]]) {
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_selectedText = currentTextTrack;
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selectedTrackIndex = i;
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break;
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}
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}
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@ -760,9 +765,8 @@ static NSString *const timedMetadata = @"timedMetadata";
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NSString *selectedValue = _selectedTextTrack[@"value"];
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for (int i = 0; i < textTracks.count; ++i) {
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NSDictionary *currentTextTrack = [textTracks objectAtIndex:i];
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if ([selectedValue isEqualToString:currentTextTrack[@"title"]]) {
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_selectedText = currentTextTrack;
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selectedTrackIndex = i;
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break;
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}
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}
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@ -770,30 +774,34 @@ static NSString *const timedMetadata = @"timedMetadata";
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if ([_selectedTextTrack[@"value"] isKindOfClass:[NSNumber class]]) {
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int index = [_selectedTextTrack[@"value"] intValue];
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if (textTracks.count > index) {
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_selectedText = [textTracks objectAtIndex:index];
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selectedTrackIndex = index;
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}
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}
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}
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// user's selected language might not be available, or system defaults have captions enabled
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if (_selectedText==nil || [type isEqualToString:@"default"]) {
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if (selectedTrackIndex == -1 || [type isEqualToString:@"default"]) {
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CFArrayRef captioningMediaCharacteristics = MACaptionAppearanceCopyPreferredCaptioningMediaCharacteristics(kMACaptionAppearanceDomainUser);
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NSArray *captionSettings = (__bridge NSArray*)captioningMediaCharacteristics;
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if ([captionSettings containsObject: AVMediaCharacteristicTranscribesSpokenDialogForAccessibility]) {
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// iterate through the textTracks to find a matching option, or default to the first object.
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_selectedText = textTracks.firstObject;
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selectedTrackIndex = firstTextIndex;
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NSString * systemLanguage = [[NSLocale preferredLanguages] firstObject];
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for (int i = 0; i < textTracks.count; ++i) {
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NSDictionary *currentTextTrack = [textTracks objectAtIndex:i];
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if ([systemLanguage isEqualToString:currentTextTrack[@"language"]]) {
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_selectedText = currentTextTrack;
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selectedTrackIndex = i;
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break;
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}
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}
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}
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}
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for (int i = firstTextIndex; i < _player.currentItem.tracks.count; ++i) {
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BOOL isEnabled = i == selectedTrackIndex + firstTextIndex;
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[_player.currentItem.tracks[i] setEnabled:isEnabled];
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}
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}
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-(void) setStreamingText {
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