MP4 box types

The box types registered at mp4ra.org, ISO family, with the specification that defines each. $20 stands for a space. Many belong to formats that share the box structure, such as JPEG 2000, HEIF, OMAF and the DRM systems, and most MP4 files use only a few of them. Those not in ISO/IEC 14496-12 are defined by the specification named.

Type	Meaning	Specification
`2dqr`	2D region quality ranking	OMAF
`2dss`	Spatial relationship 2D source	OMAF
`3dpr`	MVD depth resolution	NALu Video
`ainf`	Asset information to identify, license and play	DECE
`aedb`	Audio element description	ISO
`aelm`	Audio element	ISO
`aepp`	Audio element positioning interactivity polar	ISO
`aepr`	Audio element prominence interactivity	ISO
`aesb`	Audio element selection	ISO
`aesd`	Audio element selection description	ISO
`ardi`	Audio rendering indication	ISO
`assp`	Alternative startup sequence properties	ISO
`avcn`	AVC NAL unit storage	DECE
`bidx`	Box index	ISO-Partial
`bloc`	Base location and purchase location for licence acquisition	DECE
`bmdm`	Buffer model description	JPXS
`bpcc`	Bits per component	JPEG2000
`brob`	Brotli-compressed box	JPEG XL
`buff`	Buffering information	NALu Video
`bxml`	Binary XML container	ISO
`ccid`	OMA DRM content ID	OMA DRM 2.1
`ccst`	Coding constraints	HEIF
`cdef`	Type and ordering of the components in the codestream	JPEG2000
`cinf`	Complete track information	ISO
`clip`	Reserved	ISO
`cmap`	Mapping between a palette and codestream components	JPEG2000
`co64`	64-bit chunk offset	ISO
`coif`	Composition information	OMAF
`coin`	Content information	DECE
`colr`	Colour space of the image	JPEG2000
`covi`	Coverage information	OMAF
`crgn`	Reserved	ISO
`crhd`	Reserved for clock reference stream header	MP4v2
`csgp`	Compact sample to group	ISO
`cslg`	Composition to decode timeline mapping	ISO
`cstb`	Corrected wall clock start time	ONVIF
`ctab`	Reserved	ISO
`ctts`	Composition time to sample	ISO
`cvru`	OMA DRM cover URI	OMA DRM 2.1
`dihd`	Data integrity hash	ISO-Partial
`dinf`	Data information container	ISO
`dint`	Data integrity	ISO-Partial
`dmon`	Mastering display metadata	JPXS
`dref`	Data reference: the sources of a track’s media data	ISO
`dsgd`	DVB sample group description	DVB
`dstg`	DVB sample to group	DVB
`edts`	Edit list container	ISO
`elng`	Extended language tag	ISO
`elst`	An edit list	ISO
`emsg`	Event message	DASH
`etyp`	Extended type and type combination	ISO
`evti`	Event information	ATSC 3.0 A337
`Exif`	Exif metadata	JPXS
`fdel`	File delivery information (item info extension)	ISO
`feci`	FEC information	ISO
`fecr`	FEC reservoir	ISO
`fidx`	Box file index	ISO-Partial
`fiin`	FD item information	ISO
`fire`	File reservoir	ISO
`fovd`	Fisheye omnidirectional video	OMAF
`fovi`	Fisheye video essential info	OMAF
`fpar`	File partition	ISO
`free`	Free space	ISO
`frma`	Original format	ISO
`frpa`	Front part	ISO-Partial
`ftyp`	File type and compatibility	ISO
`fvsi`	Fisheye video supplemental info	OMAF
`gitn`	Group ID to name	ISO
`grpi`	OMA DRM group ID	OMA DRM 2.0
`grpl`	Groups list	ISO
`hdlr`	Handler: declares the media type	ISO
`hmhd`	Hint media header	ISO
`hpix`	Hipix Rich Picture	Hipix
`icnu`	OMA DRM icon URI	OMA DRM 2.0
`ID32`	ID3 version 2 container	id3v2
`idat`	Item data	ISO
`ihdr`	Image header	JPEG2000
`iinf`	Item information	ISO
`iloc`	Item location	ISO
`imap`	Reserved	ISO
`imda`	Identified media data	ISO
`imif`	IPMP information	ISO
`infe`	Item information entry	ISO
`infu`	OMA DRM info URL	OMA DRM 2.0
`iods`	Object descriptor container	MP4v2
`ipco`	Item property container	ISO
`iphd`	Reserved for IPMP stream header	MP4v2
`ipma`	Item property association	ISO
`ipmc`	IPMP control	ISO
`ipro`	Item protection	ISO
`iprp`	Item properties	ISO
`iref`	Item reference	ISO
`iroi`	SVC region of interest	NALu Video
`j2kH`	JPEG 2000 header info	J2KHEIF
`j2kP`	JPEG 2000 prefix	J2KHEIF
`jbrd`	JPEG bitstream reconstruction data	JPEG XL
`jP$20$20`	JPEG 2000 signature	JPEG2000
`jp2c`	JPEG 2000 contiguous codestream	JPEG2000
`jp2h`	Header	JPEG2000
`jp2i`	Intellectual property information	JPEG2000
`jumb`	JPEG Universal Metadata Box Format (JUMBF)	JPEG Systems
`JXL$20`	JPEG XL signature	JPEG XL
`jxll`	JPEG XL level	JPEG XL
`jxlc`	JPEG XL codestream	JPEG XL
`jxli`	JPEG XL frame index	JPEG XL
`jxlp`	JPEG XL partial codestream	JPEG XL
`jpvi`	JPEG XS video information	JPXS
`jpvs`	JPEG XS video support	JPXS
`jptp`	JPEG XS video transport parameter	JPXS
`JXS$20`	JPEG XS signature	JPXS
`jxpl`	JPEG XS profile and level	JPXS
`kmat`	Reserved	ISO
`labl`	Label	ISO
`ldep`	Tier dependency	NALu Video
`leva`	Level assignment	ISO
`load`	Reserved	ISO
`loop`	Looping behaviour	WhatsApp
`lrcu`	OMA DRM lyrics URI	OMA DRM 2.1
`m7hd`	Reserved for MPEG-7 stream header	MP4v2
`matt`	Reserved	ISO
`md5i`	MD5 integrity	HEIF
`mdat`	Media data container	ISO
`mdhd`	Media header	ISO
`mdia`	Container for a track’s media information	ISO
`mdri`	Mutable DRM information	OMA DRM 2.0
`meco`	Additional metadata container	ISO
`mehd`	Movie extends header	ISO
`meof`	Media offset	OMAF
`mere`	Metabox relation	ISO
`mesh`	Mesh	OMAF
`meta`	Metadata container	ISO
`mfhd`	Movie fragment header	ISO
`mfra`	Movie fragment random access	ISO
`mfro`	Movie fragment random access offset	ISO
`mini`	Minimized image box: a compact MetaBox for some uses	HEIF
`minf`	Media information container	ISO
`mjhd`	Reserved for MPEG-J stream header	MP4v2
`mmvi`	Multimap video	V3C-SYS
`moof`	Movie fragment	ISO
`moov`	Container for all the metadata	ISO
`movd`	Mesh omnidirectional video	OMAF
`mstv`	MVC sub-track view	NALu Video
`mvcg`	Multiview group	NALu Video
`mvci`	Multiview information	NALu Video
`mvex`	Movie extends	ISO
`mvhd`	Movie header	ISO
`mvra`	Multiview relation attribute	NALu Video
`nmhd`	Null media header	ISO
`ochd`	Reserved for object content info stream header	MP4v2
`odaf`	OMA DRM access unit format	OMA DRM 2.0
`odda`	OMA DRM content object	OMA DRM 2.0
`odhd`	Reserved for object descriptor stream header	MP4v2
`odhe`	OMA DRM discrete media headers	OMA DRM 2.0
`odrb`	OMA DRM rights object	OMA DRM 2.0
`odrm`	OMA DRM container	OMA DRM 2.0
`odtt`	OMA DRM transaction tracking	OMA DRM 2.0
`ohdr`	OMA DRM common headers	OMA DRM 2.0
`otcf`	OMAF timed text configuration	OMAF
`otyp`	Original file type	ISO
`ovly`	Overlay configuration	OMAF
`padb`	Sample padding bits	ISO
`paen`	Partition entry	ISO
`pclr`	Palette mapping a component in index space to a multi-component image	JPEG2000
`pdat`	Partial data	ISO-Partial
`pdin`	Progressive download information	ISO
`pfhd`	Partial file header	ISO-Partial
`pfil`	Partial file	ISO-Partial
`pitm`	Primary item reference	ISO
`ploc`	Partial segment location	ISO-Partial
`pnot`	Reserved	ISO
`povd`	Projected omnidirectional video	OMAF
`prfr`	Projection format	OMAF
`prft`	Producer reference time	ISO
`pseg`	Partial segment	ISO-Partial
`pshd`	Partial segment header	ISO-Partial
`pssh`	Protection system specific header	CENC
`ptle`	Partial top level entry	ISO-Partial
`res$20`	Grid resolution	JPEG2000
`resc`	Grid resolution at which the image was captured	JPEG2000
`resd`	Default grid resolution for display	JPEG2000
`rinf`	Restricted scheme information	ISO
`rosc`	Sphere region configuration	OMAF
`rotn`	Rotation	OMAF
`rrgn`	SVC rect region	NALu Video
`rsot`	Redundant sample original timing	ISO
`rvif`	Recommended viewport information	OMAF
`rwpk`	Region-wise packing	OMAF
`saio`	Sample auxiliary information offsets	ISO
`saiz`	Sample auxiliary information sizes	ISO
`sbgp`	Sample to group	ISO
`schi`	Scheme information	ISO
`schm`	Scheme type	ISO
`sdep`	Sample dependency	NALu Video
`sdhd`	Reserved for scene description stream header	MP4v2
`sdp$20`	SDP information	ISO
`sdtp`	Independent and disposable samples	ISO
`sdvp`	SD profile	SDV
`segr`	File delivery session group	ISO
`seii`	SEI information	NALu Video
`senc`	Sample specific encryption data	CENC
`sgpd`	Sample group definition	ISO
`sidx`	Segment index	ISO
`sinf`	Protection scheme information	ISO
`skip`	Free space	ISO
`smhd`	Sound media header	ISO
`spki`	Sample packing information	ISO
`sprg`	Sub-picture region	OMAF
`srmb`	System renewability message	DVB
`srmc`	System renewability message container	DVB
`srpp`	STRP process	ISO
`srqr`	Sphere region quality ranking	OMAF
`ssix`	Sub-sample index	ISO
`ssrt`	Sub-sample reference table	ISO
`sstl`	SVC sub-track layer	NALu Video
`stbl`	Sample table: container for the time and space map	ISO
`stco`	Chunk offset	ISO
`stdp`	Sample degradation priority	ISO
`sthd`	Subtitle media header	ISO
`stmg`	MVC sub-track multiview group	NALu Video
`strd`	Sub-track definition	ISO
`stri`	Sub-track information	ISO
`stsc`	Sample to chunk	ISO
`stsd`	Sample descriptions (codec types, initialisation)	ISO
`stsg`	Sub-track sample grouping	ISO
`stsh`	Shadow sync sample table	ISO
`stss`	Sync sample table	ISO
`stsz`	Sample sizes	ISO
`stti`	Sub-track tier	NALu Video
`stts`	Decoding time to sample	ISO
`stvi`	Stereo video	ISO
`styp`	Segment type	ISO
`stz2`	Compact sample sizes	ISO
`subs`	Sub-sample information	ISO
`suep`	Signer identity information	ONVIF
`sumi`	Supplemental surveillance meta information	MPEG-VSAF
`surl`	Source URL	ISO-Partial
`svdr`	SVC dependency range	NALu Video
`svip`	Initial parameter sets for tiers	NALu Video
`svpr`	Priority range	NALu Video
`swtc`	Multiview group relation	NALu Video
`tenc`	Track encryption	CENC
`tfad`	Track fragment adjustment	3GPP
`tfdt`	Track fragment decode time	ISO
`tfhd`	Track fragment header	ISO
`tfma`	Track fragment media adjustment	3GPP
`tfra`	Track fragment random access	ISO
`tibr`	Tier bit rate	NALu Video
`tiri`	Tier information	NALu Video
`tkhd`	Track header	ISO
`traf`	Track fragment	ISO
`trak`	Container for an individual track	ISO
`tran`	SVC lightweight transcoding	NALu Video
`tref`	Track reference container	ISO
`trep`	Track extension properties	ISO
`trex`	Track extends defaults	ISO
`trgr`	Track grouping information	ISO
`trik`	Random access and trick play modes	DECE
`trun`	Track fragment run	ISO
`tstb`	Tile sub-track group	NALu Video
`ttyp`	Track type and compatibility	ISO
`tyco`	Type and combination	ISO
`udta`	User data	ISO
`uinf`	Access to additional information associated with a UUID	JPEG2000
`UITS`	Unique Identifier Technology Solution	Universal Music Group
`ulst`	A list of UUIDs	JPEG2000
`url$20`	A URL	JPEG2000
`uuid`	User extension	ISO
`v3sc`	V3C spatial region collection	V3C-SYS
`vipr`	View priority	NALu Video
`vmhd`	Video media header	ISO
`vpbb`	Volumetric media bounding box	V3C-SYS
`vssn`	Viewing space	OMAF
`vunt`	V3C unit header	V3C-SYS
`vvhd`	Volumetric visual media header	ISO
`vwdi`	Multiview scene information	NALu Video
`wmpi`	Segment position in the watermark pattern	DASH-IF watermarking
`xml$20`	XML container (ISO) or XML-formatted vendor information (JPEG 2000)	ISO, JPEG2000
`!mof`	Compressed movie fragment	ISO
`!mov`	Compressed movie	ISO
`!six`	Compressed segment index	ISO
`!ssx`	Compressed subsegment index	ISO

.MP4 File Format – Box types