AtomicString InbandTextTrackPrivateAVCF::label() const
{
if (!m_mediaSelectionOption)
return emptyAtom;
RetainPtr<CFStringRef> title;
RetainPtr<CFArrayRef> commonMetaData = adoptCF(AVCFMediaSelectionOptionCopyCommonMetadata(mediaSelectionOption()));
RetainPtr<CFArrayRef> titles = adoptCF(AVCFMetadataItemCopyItemsWithKeyAndKeySpace(commonMetaData.get(), AVCFMetadataCommonKeyTitle, AVCFMetadataKeySpaceCommon));
CFIndex titlesCount = CFArrayGetCount(titles.get());
if (!titlesCount)
return emptyAtom;
// If possible, return a title in one of the user's preferred languages.
RetainPtr<CFArrayRef> preferredLanguages = CFLocaleCopyPreferredLanguages();
RetainPtr<CFArrayRef> titlesForPreferredLanguages = AVCFMediaSelectionCopyOptionsFromArrayFilteredAndSortedAccordingToPreferredLanguages(titles.get(), preferredLanguages.get());
CFIndex preferredTitlesCount = CFArrayGetCount(titlesForPreferredLanguages.get());
if (preferredTitlesCount) {
AVCFMetadataItemRef titleMetadata = static_cast<AVCFMetadataItemRef>(CFArrayGetValueAtIndex(titlesForPreferredLanguages.get(), 0));
title = adoptCF(AVCFMetadataItemCopyStringValue(titleMetadata));
}
if (!title) {
AVCFMetadataItemRef titleMetadata = static_cast<AVCFMetadataItemRef>(CFArrayGetValueAtIndex(titles.get(), 0));
title = adoptCF(AVCFMetadataItemCopyStringValue(titleMetadata));
}
return title ? AtomicString(title.get()) : emptyAtom;
}
AtomicString InbandTextTrackPrivateLegacyAVCF::label() const
{
if (!m_playerItemTrack)
return emptyAtom;
RetainPtr<CFStringRef> title;
RetainPtr<AVCFAssetTrackRef> assetTrack = adoptCF(AVCFPlayerItemTrackCopyAssetTrack(m_playerItemTrack.get()));
RetainPtr<CFArrayRef> commonMetaData = adoptCF(AVCFAssetTrackCopyCommonMetadata(assetTrack.get()));
RetainPtr<CFArrayRef> titles = adoptCF(AVCFMetadataItemCopyItemsWithKeyAndKeySpace(commonMetaData.get(), AVCFMetadataCommonKeyTitle, AVCFMetadataKeySpaceCommon));
CFIndex titlesCount = CFArrayGetCount(titles.get());
if (titlesCount) {
RetainPtr<CFLocaleRef> currentLocale = adoptCF(CFLocaleCopyCurrent());
RetainPtr<CFArrayRef> titlesForPreferredLanguages = adoptCF(AVCFMetadataItemCopyItemsWithLocale(titles.get(), currentLocale.get()));
CFIndex preferredTitlesCount = CFArrayGetCount(titlesForPreferredLanguages.get());
if (preferredTitlesCount) {
AVCFMetadataItemRef titleMetadata = static_cast<AVCFMetadataItemRef>(CFArrayGetValueAtIndex(titlesForPreferredLanguages.get(), 0));
title = adoptCF(AVCFMetadataItemCopyStringValue(titleMetadata));
}
if (!title) {
AVCFMetadataItemRef titleMetadata = static_cast<AVCFMetadataItemRef>(CFArrayGetValueAtIndex(titles.get(), 0));
title = adoptCF(AVCFMetadataItemCopyStringValue(titleMetadata));
}
}
return title ? AtomicString(title.get()) : emptyAtom;
}
