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*Details: File format summary

    
 

 

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Details for: 3GPP Audio/Video File

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Go to:  Summary  |  Documentation  |  Signatures |  Compression  |  Character encoding  |  Rights  |  Reference files   Properties  
 

Signatures
External signatures File extension: 3gp
File extension: 3gpp
Internal signatures
Name 3GPP Audio/Video File
Description Header: The 4 letters 'ftyp' identifies the atom/box type as an ftyp box, the next 4 indicate the ftyp code for the "major brand". The brand sequence indicates the 'best use' of the file, and has several different profiles: basic, streaming-server, progressive-download, extended-presentation, media stream recording, file delivery, adaptive streaming.
Byte sequences
Position type Absolute from BOF
Offset 4
Byte order  
Value 667479703367(65|67|68|70|72|73|74)[34:39]0000[00:03]00
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