<?xml version="1.0" encoding="utf-8"?>
<PRONOM-Report xmlns="http://pronom.nationalarchives.gov.uk">
  <report_format_detail>
    <FileFormat>
      <FormatID>1103</FormatID>
      <FormatName>3GPP Audio/Video File</FormatName>
      <FormatVersion>
      </FormatVersion>
      <FormatAliases>
      </FormatAliases>
      <FormatFamilies>
      </FormatFamilies>
      <FormatTypes>Audio, Video</FormatTypes>
      <FormatDisclosure>
      </FormatDisclosure>
      <FormatDescription>An audiovisual container typically associated with 3G mobile phones and is developed by the Third Generation Partnership Project. May contain video/audio or audio only.</FormatDescription>
      <BinaryFileFormat>
      </BinaryFileFormat>
      <ByteOrders>
      </ByteOrders>
      <ReleaseDate>
      </ReleaseDate>
      <WithdrawnDate>
      </WithdrawnDate>
      <ProvenanceSourceID>1</ProvenanceSourceID>
      <ProvenanceName>Digital Preservation Department / The National Archives</ProvenanceName>
      <ProvenanceSourceDate>21 Jun 2011</ProvenanceSourceDate>
      <ProvenanceDescription>04/2024 (v.117)- Description created and notes added. Submitted by The Church of Jesus Christ of Latter-Day Saints as part of PRONOM Research Week 2023.</ProvenanceDescription>
      <LastUpdatedDate>16 Apr 2024</LastUpdatedDate>
      <FormatNote>http://fileformats.archiveteam.org/wiki/3GP
https://fileinfo.com/extension/3gpp https://en.wikipedia.org/wiki/3GP_and_3G2
http://3gpp.org/
http://www.3gpp.org/ftp/Specs/html-info/26244.htm</FormatNote>
      <FormatRisk>
      </FormatRisk>
      <TechnicalEnvironment>
      </TechnicalEnvironment>
      <FileFormatIdentifier>
        <Identifier>audio/3gpp</Identifier>
        <IdentifierType>MIME</IdentifierType>
      </FileFormatIdentifier>
      <FileFormatIdentifier>
        <Identifier>fmt/357</Identifier>
        <IdentifierType>PUID</IdentifierType>
      </FileFormatIdentifier>
      <FileFormatIdentifier>
        <Identifier>video/3gpp</Identifier>
        <IdentifierType>MIME</IdentifierType>
      </FileFormatIdentifier>
      <ExternalSignature>
        <ExternalSignatureID>1125</ExternalSignatureID>
        <Signature>3gp</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <ExternalSignature>
        <ExternalSignatureID>1126</ExternalSignatureID>
        <Signature>3gpp</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <InternalSignature>
        <SignatureID>526</SignatureID>
        <SignatureName>3GPP Audio/Video File</SignatureName>
        <SignatureNote>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.</SignatureNote>
        <ByteSequence>
          <ByteSequenceID>648</ByteSequenceID>
          <PositionType>Absolute from BOF</PositionType>
          <Offset>4</Offset>
          <MaxOffset>
          </MaxOffset>
          <IndirectOffsetLocation>
          </IndirectOffsetLocation>
          <IndirectOffsetLength>
          </IndirectOffsetLength>
          <Endianness>
          </Endianness>
          <ByteSequenceValue>667479703367(65|67|68|70|72|73|74)[34:39]0000[00:03]00</ByteSequenceValue>
        </ByteSequence>
      </InternalSignature>
      <RelatedFormat>
        <RelationshipType>Can contain</RelationshipType>
        <RelatedFormatID>1102</RelatedFormatID>
        <RelatedFormatName>Adaptive Multi-Rate Audio</RelatedFormatName>
        <RelatedFormatVersion>
        </RelatedFormatVersion>
      </RelatedFormat>
      <RelatedFormat>
        <RelationshipType>Has priority over</RelationshipType>
        <RelatedFormatID>924</RelatedFormatID>
        <RelatedFormatName>MPEG-4 Media File</RelatedFormatName>
        <RelatedFormatVersion>
        </RelatedFormatVersion>
      </RelatedFormat>
    </FileFormat>
    <SearchCriteria>Criteria</SearchCriteria>
  </report_format_detail>
</PRONOM-Report>
