CMMediaType Constants that represent media types. Declarationtypealias CMMediaType = FourCharCode TopicsConstantskCMMediaType_AudiokCMMediaType_AuxiliaryPicturekCMMediaType_ClosedCaptionkCMMediaType_MetadatakCMMediaType_MuxedkCMMediaType_SubtitlekCMMediaType_TextkCMMediaType_TimeCodekCMMediaType_VideokCMMediaType_TaggedBufferGroup See AlsoData TypesCMVideoDimensionsCMAudioFormatDescriptionMaskCMAudioCodecTypeCMVideoCodecTypeCMTextDisplayFlagsCMTextJustificationValueMedia Type ConstantsMuxed Stream TypesAudio Codec Types