### - a -

- AP4_ARRAY_INITIAL_COUNT : Ap4Array.h
- AP4_ATOM_HEADER_SIZE : Ap4Atom.h
- AP4_ATOM_HEADER_SIZE_64 : Ap4Atom.h
- AP4_ATOM_MAX_NAME_SIZE : Ap4Atom.h
- AP4_ATOM_MAX_URI_SIZE : Ap4Atom.h
- AP4_ATOM_TYPE_aART : Ap4MetaData.h
- AP4_ATOM_TYPE_akID : Ap4MetaData.h
- AP4_ATOM_TYPE_ALAC : Ap4Atom.h
- AP4_ATOM_TYPE_ALBM : Ap4MetaData.h
- AP4_ATOM_TYPE_apID : Ap4MetaData.h
- AP4_ATOM_TYPE_atID : Ap4MetaData.h
- AP4_ATOM_TYPE_AUTH : Ap4MetaData.h
- AP4_ATOM_TYPE_AVC1 : Ap4Atom.h
- AP4_ATOM_TYPE_AVCC : Ap4Atom.h
- AP4_ATOM_TYPE_cALB : Ap4MetaData.h
- AP4_ATOM_TYPE_cART : Ap4MetaData.h
- AP4_ATOM_TYPE_CATG : Ap4MetaData.h
- AP4_ATOM_TYPE_cCMT : Ap4MetaData.h
- AP4_ATOM_TYPE_cCOM : Ap4MetaData.h
- AP4_ATOM_TYPE_cDAY : Ap4MetaData.h
- AP4_ATOM_TYPE_CDSC : Ap4Atom.h
- AP4_ATOM_TYPE_cGEN : Ap4MetaData.h
- AP4_ATOM_TYPE_cGRP : Ap4MetaData.h
- AP4_ATOM_TYPE_CLSF : Ap4MetaData.h
- AP4_ATOM_TYPE_cLYR : Ap4MetaData.h
- AP4_ATOM_TYPE_cmID : Ap4MetaData.h
- AP4_ATOM_TYPE_cNAM : Ap4MetaData.h
- AP4_ATOM_TYPE_cnID : Ap4MetaData.h
- AP4_ATOM_TYPE_CO64 : Ap4Atom.h
- AP4_ATOM_TYPE_COVR : Ap4MetaData.h
- AP4_ATOM_TYPE_CPIL : Ap4MetaData.h
- AP4_ATOM_TYPE_CPRT : Ap4MetaData.h
- AP4_ATOM_TYPE_cTOO : Ap4MetaData.h
- AP4_ATOM_TYPE_CTTS : Ap4Atom.h
- AP4_ATOM_TYPE_CVRU : Ap4MetaData.h
- AP4_ATOM_TYPE_cWRT : Ap4MetaData.h
- AP4_ATOM_TYPE_DATA : Ap4MetaData.h
- AP4_ATOM_TYPE_DCFD : Ap4MetaData.h
- AP4_ATOM_TYPE_dddd : Ap4MetaData.h
- AP4_ATOM_TYPE_DESC : Ap4MetaData.h
- AP4_ATOM_TYPE_DINF : Ap4Atom.h
- AP4_ATOM_TYPE_DISK : Ap4MetaData.h
- AP4_ATOM_TYPE_DPND : Ap4Atom.h
- AP4_ATOM_TYPE_DREF : Ap4Atom.h
- AP4_ATOM_TYPE_DRMI : Ap4Atom.h
- AP4_ATOM_TYPE_DRMS : Ap4Atom.h
- AP4_ATOM_TYPE_DSCP : Ap4MetaData.h
- AP4_ATOM_TYPE_EDTS : Ap4Atom.h
- AP4_ATOM_TYPE_EGID : Ap4MetaData.h
- AP4_ATOM_TYPE_ELST : Ap4Atom.h
- AP4_ATOM_TYPE_ENCA : Ap4Atom.h
- AP4_ATOM_TYPE_ENCV : Ap4Atom.h
- AP4_ATOM_TYPE_ESDS : Ap4Atom.h
- AP4_ATOM_TYPE_FREE : Ap4Atom.h
- AP4_ATOM_TYPE_FRMA : Ap4Atom.h
- AP4_ATOM_TYPE_FTYP : Ap4Atom.h
- AP4_ATOM_TYPE_geID : Ap4MetaData.h
- AP4_ATOM_TYPE_GNRE : Ap4MetaData.h
- AP4_ATOM_TYPE_GRPI : Ap4Atom.h
- AP4_ATOM_TYPE_HDLR : Ap4Atom.h
- AP4_ATOM_TYPE_HINT : Ap4Atom.h
- AP4_ATOM_TYPE_HMHD : Ap4Atom.h
- AP4_ATOM_TYPE_HNTI : Ap4Atom.h
- AP4_ATOM_TYPE_ICNU : Ap4MetaData.h
- AP4_ATOM_TYPE_IKMS : Ap4Atom.h
- AP4_ATOM_TYPE_ILST : Ap4Atom.h
- AP4_ATOM_TYPE_INFU : Ap4MetaData.h
- AP4_ATOM_TYPE_IODS : Ap4Atom.h
- AP4_ATOM_TYPE_IPIR : Ap4Atom.h
- AP4_ATOM_TYPE_IPRO : Ap4Atom.h
- AP4_ATOM_TYPE_ISFM : Ap4Atom.h
- AP4_ATOM_TYPE_ISLT : Ap4Atom.h
- AP4_ATOM_TYPE_KEYW : Ap4MetaData.h
- AP4_ATOM_TYPE_KYWD : Ap4MetaData.h
- AP4_ATOM_TYPE_LOCI : Ap4MetaData.h
- AP4_ATOM_TYPE_LRCU : Ap4MetaData.h
- AP4_ATOM_TYPE_MDAT : Ap4Atom.h
- AP4_ATOM_TYPE_MDHD : Ap4Atom.h
- AP4_ATOM_TYPE_MDIA : Ap4Atom.h
- AP4_ATOM_TYPE_MDRI : Ap4Atom.h
- AP4_ATOM_TYPE_MEAN : Ap4MetaData.h
- AP4_ATOM_TYPE_META : Ap4Atom.h
- AP4_ATOM_TYPE_MINF : Ap4Atom.h
- AP4_ATOM_TYPE_MOOV : Ap4Atom.h
- AP4_ATOM_TYPE_MP4A : Ap4Atom.h
- AP4_ATOM_TYPE_MP4S : Ap4Atom.h
- AP4_ATOM_TYPE_MP4V : Ap4Atom.h
- AP4_ATOM_TYPE_MPOD : Ap4Atom.h
- AP4_ATOM_TYPE_MVHD : Ap4Atom.h
- AP4_ATOM_TYPE_NAME : Ap4MetaData.h
- AP4_ATOM_TYPE_NMHD : Ap4Atom.h
- AP4_ATOM_TYPE_ODAF : Ap4Atom.h
- AP4_ATOM_TYPE_ODDA : Ap4Atom.h
- AP4_ATOM_TYPE_ODHE : Ap4Atom.h
- AP4_ATOM_TYPE_ODKM : Ap4Atom.h
- AP4_ATOM_TYPE_ODRM : Ap4Atom.h
- AP4_ATOM_TYPE_OHDR : Ap4Atom.h
- AP4_ATOM_TYPE_PCST : Ap4MetaData.h
- AP4_ATOM_TYPE_PERF : Ap4MetaData.h
- AP4_ATOM_TYPE_PGAP : Ap4MetaData.h
- AP4_ATOM_TYPE_plID : Ap4MetaData.h
- AP4_ATOM_TYPE_PURD : Ap4MetaData.h
- AP4_ATOM_TYPE_PURL : Ap4MetaData.h
- AP4_ATOM_TYPE_RTNG : Ap4MetaData.h
- AP4_ATOM_TYPE_RTP_ : Ap4Atom.h
- AP4_ATOM_TYPE_SCHI : Ap4Atom.h
- AP4_ATOM_TYPE_SCHM : Ap4Atom.h
- AP4_ATOM_TYPE_SDP_ : Ap4Atom.h
- AP4_ATOM_TYPE_sfID : Ap4MetaData.h
- AP4_ATOM_TYPE_SINF : Ap4Atom.h
- AP4_ATOM_TYPE_SMHD : Ap4Atom.h
- AP4_ATOM_TYPE_SOAA : Ap4MetaData.h
- AP4_ATOM_TYPE_SOAL : Ap4MetaData.h
- AP4_ATOM_TYPE_SOAR : Ap4MetaData.h
- AP4_ATOM_TYPE_SOCO : Ap4MetaData.h
- AP4_ATOM_TYPE_SONM : Ap4MetaData.h
- AP4_ATOM_TYPE_SOSN : Ap4MetaData.h
- AP4_ATOM_TYPE_STBL : Ap4Atom.h
- AP4_ATOM_TYPE_STCO : Ap4Atom.h
- AP4_ATOM_TYPE_STIK : Ap4MetaData.h
- AP4_ATOM_TYPE_STSC : Ap4Atom.h
- AP4_ATOM_TYPE_STSD : Ap4Atom.h
- AP4_ATOM_TYPE_STSS : Ap4Atom.h
- AP4_ATOM_TYPE_STSZ : Ap4Atom.h
- AP4_ATOM_TYPE_STTS : Ap4Atom.h
- AP4_ATOM_TYPE_SYNC : Ap4Atom.h
- AP4_ATOM_TYPE_TIMS : Ap4Atom.h
- AP4_ATOM_TYPE_TITL : Ap4MetaData.h
- AP4_ATOM_TYPE_TKHD : Ap4Atom.h
- AP4_ATOM_TYPE_TMPO : Ap4MetaData.h
- AP4_ATOM_TYPE_TRAK : Ap4Atom.h
- AP4_ATOM_TYPE_TREF : Ap4Atom.h
- AP4_ATOM_TYPE_TRKN : Ap4MetaData.h
- AP4_ATOM_TYPE_TSEL : Ap4MetaData.h
- AP4_ATOM_TYPE_TVEN : Ap4MetaData.h
- AP4_ATOM_TYPE_TVES : Ap4MetaData.h
- AP4_ATOM_TYPE_TVNN : Ap4MetaData.h
- AP4_ATOM_TYPE_TVSH : Ap4MetaData.h
- AP4_ATOM_TYPE_TVSN : Ap4MetaData.h
- AP4_ATOM_TYPE_UDTA : Ap4Atom.h
- AP4_ATOM_TYPE_URL : Ap4Atom.h
- AP4_ATOM_TYPE_UUID : Ap4Atom.h
- AP4_ATOM_TYPE_VMHD : Ap4Atom.h
- AP4_ATOM_TYPE_WAVE : Ap4Atom.h
- AP4_ATOM_TYPE_WIDE : Ap4Atom.h
- AP4_ATOM_TYPE_YRRC : Ap4MetaData.h
- AP4_AVC_PROFILE_BASELINE : Ap4AvccAtom.h
- AP4_AVC_PROFILE_EXTENDED : Ap4AvccAtom.h
- AP4_AVC_PROFILE_HIGH : Ap4AvccAtom.h
- AP4_AVC_PROFILE_HIGH_10 : Ap4AvccAtom.h
- AP4_AVC_PROFILE_HIGH_422 : Ap4AvccAtom.h
- AP4_AVC_PROFILE_HIGH_444 : Ap4AvccAtom.h
- AP4_AVC_PROFILE_MAIN : Ap4AvccAtom.h
- AP4_CIPHER_BLOCK_SIZE : Ap4StreamCipher.h
- AP4_COMMAND_TAG_ES_DESCRIPTOR_REMOVE : Ap4Command.h
- AP4_COMMAND_TAG_ES_DESCRIPTOR_REMOVE_REF : Ap4Command.h
- AP4_COMMAND_TAG_ES_DESCRIPTOR_UPDATE : Ap4Command.h
- AP4_COMMAND_TAG_IPMP_DESCRIPTOR_REMOVE : Ap4Command.h
- AP4_COMMAND_TAG_IPMP_DESCRIPTOR_UPDATE : Ap4Command.h
- AP4_COMMAND_TAG_OBJECT_DESCRIPTOR_EXECUTE : Ap4Command.h
- AP4_COMMAND_TAG_OBJECT_DESCRIPTOR_REMOVE : Ap4Command.h
- AP4_COMMAND_TAG_OBJECT_DESCRIPTOR_UPDATE : Ap4Command.h
- AP4_DESCRIPTOR_TAG_DECODER_CONFIG : Ap4DecoderConfigDescriptor.h
- AP4_DESCRIPTOR_TAG_DECODER_SPECIFIC_INFO : Ap4DecoderSpecificInfoDescriptor.h
- AP4_DESCRIPTOR_TAG_ES : Ap4EsDescriptor.h
- AP4_DESCRIPTOR_TAG_ES_ID_INC : Ap4EsDescriptor.h
- AP4_DESCRIPTOR_TAG_ES_ID_REF : Ap4EsDescriptor.h
- AP4_DESCRIPTOR_TAG_IOD : Ap4ObjectDescriptor.h
- AP4_DESCRIPTOR_TAG_IPMP_DESCRIPTOR : Ap4Ipmp.h
- AP4_DESCRIPTOR_TAG_IPMP_DESCRIPTOR_POINTER : Ap4Ipmp.h
- AP4_DESCRIPTOR_TAG_MP4_IOD : Ap4ObjectDescriptor.h
- AP4_DESCRIPTOR_TAG_MP4_OD : Ap4ObjectDescriptor.h
- AP4_DESCRIPTOR_TAG_OD : Ap4ObjectDescriptor.h
- AP4_DESCRIPTOR_TAG_SL_CONFIG : Ap4SLConfigDescriptor.h
- AP4_ERROR_BUFFER_TOO_SMALL : Ap4Results.h
- AP4_ERROR_CANNOT_OPEN_FILE : Ap4Results.h
- AP4_ERROR_EOS : Ap4Results.h
- AP4_ERROR_INTERNAL : Ap4Results.h
- AP4_ERROR_INVALID_FORMAT : Ap4Results.h
- AP4_ERROR_INVALID_PARAMETERS : Ap4Results.h
- AP4_ERROR_INVALID_RTP_CONSTRUCTOR_TYPE : Ap4Results.h
- AP4_ERROR_INVALID_RTP_PACKET_EXTRA_DATA : Ap4Results.h
- AP4_ERROR_INVALID_STATE : Ap4Results.h
- AP4_ERROR_INVALID_TRACK_TYPE : Ap4Results.h
- AP4_ERROR_LIST_EMPTY : Ap4Results.h
- AP4_ERROR_LIST_OPERATION_ABORTED : Ap4Results.h
- AP4_ERROR_NO_SUCH_FILE : Ap4Results.h
- AP4_ERROR_NO_SUCH_ITEM : Ap4Results.h
- AP4_ERROR_NOT_ENOUGH_DATA : Ap4Results.h
- AP4_ERROR_NOT_SUPPORTED : Ap4Results.h
- AP4_ERROR_OUT_OF_MEMORY : Ap4Results.h
- AP4_ERROR_OUT_OF_RANGE : Ap4Results.h
- AP4_ERROR_PERMISSION_DENIED : Ap4Results.h
- AP4_ERROR_READ_FAILED : Ap4Results.h
- AP4_ERROR_WRITE_FAILED : Ap4Results.h
- AP4_ES_DESCRIPTOR_FLAG_OCR_STREAM : Ap4EsDescriptor.h
- AP4_ES_DESCRIPTOR_FLAG_STREAM_DEPENDENCY : Ap4EsDescriptor.h
- AP4_ES_DESCRIPTOR_FLAG_URL : Ap4EsDescriptor.h
- AP4_FAILURE : Ap4Results.h
- AP4_FILE_BRAND_3G2A : Ap4File.h
- AP4_FILE_BRAND_3GP1 : Ap4File.h
- AP4_FILE_BRAND_3GP2 : Ap4File.h
- AP4_FILE_BRAND_3GP3 : Ap4File.h
- AP4_FILE_BRAND_3GP4 : Ap4File.h
- AP4_FILE_BRAND_3GP5 : Ap4File.h
- AP4_FILE_BRAND_ISOM : Ap4File.h
- AP4_FILE_BRAND_M4A_ : Ap4File.h
- AP4_FILE_BRAND_M4P_ : Ap4File.h
- AP4_FILE_BRAND_MJP2 : Ap4File.h
- AP4_FILE_BRAND_MMP4 : Ap4File.h
- AP4_FILE_BRAND_MP41 : Ap4File.h
- AP4_FILE_BRAND_MP42 : Ap4File.h
- AP4_FILE_BRAND_QT__ : Ap4File.h
- AP4_FTYP_BRAND_ISOM : Ap4FtypAtom.h
- AP4_FULL_ATOM_HEADER_SIZE : Ap4Atom.h
- AP4_FULL_ATOM_HEADER_SIZE_64 : Ap4Atom.h
- AP4_HANDLER_TYPE_HINT : Ap4HdlrAtom.h
- AP4_HANDLER_TYPE_JPEG : Ap4HdlrAtom.h
- AP4_HANDLER_TYPE_MDIR : Ap4HdlrAtom.h
- AP4_HANDLER_TYPE_ODSM : Ap4HdlrAtom.h
- AP4_HANDLER_TYPE_SDSM : Ap4HdlrAtom.h
- AP4_HANDLER_TYPE_SOUN : Ap4HdlrAtom.h
- AP4_HANDLER_TYPE_TEXT : Ap4HdlrAtom.h
- AP4_HANDLER_TYPE_TX3G : Ap4HdlrAtom.h
- AP4_HANDLER_TYPE_VIDE : Ap4HdlrAtom.h
- AP4_MARLIN_BRAND_MGSV : Ap4Marlin.h
- AP4_MARLIN_IPMPS_TYPE_MGSV : Ap4Marlin.h
- AP4_MARLIN_SCHEME_TYPE_ACBC : Ap4Marlin.h
- AP4_MDHD_DEFAULT_GENERIC_TIMESCALE : Ap4MdhdAtom.h
- AP4_MDHD_DEFAULT_VIDEO_TIMESCALE : Ap4MdhdAtom.h
- AP4_MPEG4_AUDIO_OBJECT_TYPE_AAC_LC : Ap4SampleDescription.h
- AP4_MPEG4_AUDIO_OBJECT_TYPE_AAC_LTP : Ap4SampleDescription.h
- AP4_MPEG4_AUDIO_OBJECT_TYPE_AAC_MAIN : Ap4SampleDescription.h
- AP4_MPEG4_AUDIO_OBJECT_TYPE_AAC_SCALABLE : Ap4SampleDescription.h
- AP4_MPEG4_AUDIO_OBJECT_TYPE_AAC_SSR : Ap4SampleDescription.h
- AP4_MPEG4_AUDIO_OBJECT_TYPE_ER_AAC_LC : Ap4SampleDescription.h
- AP4_MPEG4_AUDIO_OBJECT_TYPE_ER_AAC_LD : Ap4SampleDescription.h
- AP4_MPEG4_AUDIO_OBJECT_TYPE_ER_AAC_LTP : Ap4SampleDescription.h
- AP4_MPEG4_AUDIO_OBJECT_TYPE_ER_AAC_SCALABLE : Ap4SampleDescription.h
- AP4_MPEG4_AUDIO_OBJECT_TYPE_ER_BSAC : Ap4SampleDescription.h
- AP4_MPEG4_AUDIO_OBJECT_TYPE_ER_TWINVQ : Ap4SampleDescription.h
- AP4_MPEG4_AUDIO_OBJECT_TYPE_LAYER_1 : Ap4SampleDescription.h
- AP4_MPEG4_AUDIO_OBJECT_TYPE_LAYER_2 : Ap4SampleDescription.h
- AP4_MPEG4_AUDIO_OBJECT_TYPE_LAYER_3 : Ap4SampleDescription.h
- AP4_MPEG4_AUDIO_OBJECT_TYPE_SBR : Ap4SampleDescription.h
- AP4_MPEG4_AUDIO_OBJECT_TYPE_TWINVQ : Ap4SampleDescription.h
- AP4_OMA_DCF_BRAND_ODCF : Ap4OmaDcf.h
- AP4_OMA_DCF_BRAND_OPF2 : Ap4OmaDcf.h
- AP4_OMA_DCF_ENCRYPTION_METHOD_AES_CBC : Ap4OhdrAtom.h
- AP4_OMA_DCF_ENCRYPTION_METHOD_AES_CTR : Ap4OhdrAtom.h
- AP4_OMA_DCF_ENCRYPTION_METHOD_NULL : Ap4OhdrAtom.h
- AP4_OMA_DCF_PADDING_SCHEME_NONE : Ap4OhdrAtom.h
- AP4_OMA_DCF_PADDING_SCHEME_RFC_2630 : Ap4OhdrAtom.h
- AP4_OTI_JPEG : Ap4SampleDescription.h
- AP4_OTI_MPEG1_AUDIO : Ap4SampleDescription.h
- AP4_OTI_MPEG1_VISUAL : Ap4SampleDescription.h
- AP4_OTI_MPEG2_AAC_AUDIO_LC : Ap4SampleDescription.h
- AP4_OTI_MPEG2_AAC_AUDIO_MAIN : Ap4SampleDescription.h
- AP4_OTI_MPEG2_AAC_AUDIO_SSRP : Ap4SampleDescription.h
- AP4_OTI_MPEG2_PART3_AUDIO : Ap4SampleDescription.h
- AP4_OTI_MPEG2_VISUAL_422 : Ap4SampleDescription.h
- AP4_OTI_MPEG2_VISUAL_HIGH : Ap4SampleDescription.h
- AP4_OTI_MPEG2_VISUAL_MAIN : Ap4SampleDescription.h
- AP4_OTI_MPEG2_VISUAL_SIMPLE : Ap4SampleDescription.h
- AP4_OTI_MPEG2_VISUAL_SNR : Ap4SampleDescription.h
- AP4_OTI_MPEG2_VISUAL_SPATIAL : Ap4SampleDescription.h
- AP4_OTI_MPEG4_AUDIO : Ap4SampleDescription.h
- AP4_OTI_MPEG4_SYSTEM : Ap4SampleDescription.h
- AP4_OTI_MPEG4_SYSTEM_COR : Ap4SampleDescription.h
- AP4_OTI_MPEG4_TEXT : Ap4SampleDescription.h
- AP4_OTI_MPEG4_VISUAL : Ap4SampleDescription.h
- AP4_PROTECTION_KEY_LENGTH : Ap4Protection.h
- AP4_PROTECTION_SCHEME_TYPE_IAEC : Ap4IsmaCryp.h
- AP4_PROTECTION_SCHEME_TYPE_ITUNES : Ap4Protection.h
- AP4_PROTECTION_SCHEME_TYPE_OMA : Ap4OmaDcf.h
- AP4_PROTECTION_SCHEME_VERSION_OMA_20 : Ap4OmaDcf.h
- AP4_RTP_CONSTRUCTOR_SIZE : Ap4RtpHint.h
- AP4_RTP_CONSTRUCTOR_TYPE_IMMEDIATE : Ap4RtpHint.h
- AP4_RTP_CONSTRUCTOR_TYPE_NOOP : Ap4RtpHint.h
- AP4_RTP_CONSTRUCTOR_TYPE_SAMPLE : Ap4RtpHint.h
- AP4_RTP_CONSTRUCTOR_TYPE_SAMPLE_DESC : Ap4RtpHint.h
- AP4_STREAM_TYPE_AUDIO : Ap4SampleDescription.h
- AP4_STREAM_TYPE_BIFS : Ap4SampleDescription.h
- AP4_STREAM_TYPE_CR : Ap4SampleDescription.h
- AP4_STREAM_TYPE_FORBIDDEN : Ap4SampleDescription.h
- AP4_STREAM_TYPE_IPMP : Ap4SampleDescription.h
- AP4_STREAM_TYPE_MPEG7 : Ap4SampleDescription.h
- AP4_STREAM_TYPE_MPEGJ : Ap4SampleDescription.h
- AP4_STREAM_TYPE_OCI : Ap4SampleDescription.h
- AP4_STREAM_TYPE_OD : Ap4SampleDescription.h
- AP4_STREAM_TYPE_TEXT : Ap4SampleDescription.h
- AP4_STREAM_TYPE_VISUAL : Ap4SampleDescription.h
- AP4_SUCCESS : Ap4Results.h
- AP4_SYNTHETIC_SAMPLE_TABLE_DEFAULT_CHUNK_SIZE : Ap4SyntheticSampleTable.h
- AP4_TKHD_FLAG_DEFAULTS : Ap4TkhdAtom.h
- AP4_TKHD_FLAG_TRACK_ENABLED : Ap4TkhdAtom.h
- AP4_TKHD_FLAG_TRACK_IN_MOVIE : Ap4TkhdAtom.h
- AP4_TKHD_FLAG_TRACK_IN_PREVIEW : Ap4TkhdAtom.h
- AP4_TRACK_DEFAULT_MOVIE_TIMESCALE : Ap4Track.h