AllowedFormatReaders com.apple.coremedia.formatreader.quicktime-iso ValidationType IgnoreUnrecognized TrackTypes vide soun clcp sbtl text meta text wvtt svtt AudioCodecs aac VideoCodecs avc1 hvc1 VideoCodecProfiles hvc1 SupportedProfiles 1 2 PerProfileConstraints 1 MaxAverageMegabits 160 2 MaxAverageMegabits 160 MaxTier 1 MaxLevel 153 avc1 SupportedProfiles 66 77 100 MaxLevel 99 VideoNoFrameReordering TimecodeMustBeInvisible VideoNoInterlacing AllowNonSelfContained