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3GP and 3G2

February 22, 2023

3GP (3GPP file format) is a multimedia container format defined by the Third Generation Partnership Project (3GPP) for 3G UMTS multimedia services. It is used on 3G mobile phones but can also be played on some 2G and 4G phones.

3GP
Filename extension
.3gp
Internet media type
video/3gpp, audio/3gpp
Uniform Type Identifier (UTI)public.3gpp
Developed by3GPP
Initial release4 April 2003; 19 years ago (2003-04-04)[1]
Latest release
17.0.0[1]
7 April 2022; 10 months ago (2022-04-07)
Type of formatContainer format
Container foraudio, video, text
Extended fromMPEG-4 Part 12
Open format?Yes
Free format?No
3G2
Filename extension
.3g2
Internet media type
video/3gpp2, audio/3gpp2
Uniform Type Identifier (UTI)public.3gpp2
Developed by3GPP2
Initial releaseJanuary 2004; 19 years ago (2004-01)[2]
Latest release
C.S0050-B v1.0[2]
June 2007; 15 years ago (2007-06)
Type of formatContainer format
Container foraudio, video, text
Extended fromMPEG-4 Part 12
Open format?Yes
Free format?No

3G2 (3GPP2 file format) is a multimedia container format defined by the 3GPP2 for 3G CDMA2000 multimedia services. It is very similar to the 3GP file format but consumes less space & bandwidth, and has some extensions and limitations in comparison to 3GP.

Specifications

3GP is defined in the ETSI 3GPP technical specification.[1] 3GP is a required file format for video and associated speech/audio media types and timed text in ETSI 3GPP technical specifications for IP Multimedia Subsystem (IMS), Multimedia Messaging Service (MMS), Multimedia Broadcast/Multicast Service (MBMS) and Transparent end-to-end Packet-switched Streaming Service (PSS).[3][4][5][6]

3G2 is defined in the 3GPP2 technical specification.[2]

Technical details

 
Relations between ISO Base Media File Format, MP4 File Format, 3GPP file format and 3GPP2 file format. Based on the 3GPP2 technical specification published on 18 May 2007.[7]

The 3GP and 3G2 file formats are both structurally based on the ISO base media file format defined in ISO/IEC 14496-12 – MPEG-4 Part 12,[8][9][10] but older versions of the 3GP file format did not use some of its features.[7] 3GP and 3G2 are container formats similar to MPEG-4 Part 14 (MP4), which is also based on MPEG-4 Part 12. The 3GP and 3G2 file format were designed to decrease storage and bandwidth requirements to accommodate mobile phones. They are good for lower end smartphones for faster streaming & download.

3GP and 3G2 are similar standards, but with some differences:

  • 3GPP file format was designed for GSM-based phones and may have the filename extension .3gp
  • 3GPP2 file format was designed for CDMA-based phones and may have the filename extension .3g2

Some cell phones use the .mp4 extension for 3GP video.

3GP

The 3GP file format stores video streams as MPEG-4 Part 2, H.263, or MPEG-4 Part 10 (AVC/H.264), and audio streams as AMR-NB, AMR-WB, AMR-WB+, AAC-LC, HE-AAC v1 or Enhanced aacPlus (HE-AAC v2). 3GPP allowed use of AMR and H.263 codecs in the ISO base media file format (MPEG-4 Part 12), because 3GPP specified the usage of the Sample Entry and template fields in the ISO base media file format as well as defining new boxes to which codecs refer. These extensions were registered by the registration authority for code-points in ISO base media file format ("MP4 Family" files).[11][12] For the storage of MPEG-4 media specific information in 3GP files, the 3GP specification refers to MP4 and the AVC file format, which are also based on the ISO base media file format. The MP4 and the AVC file format specifications described usage of MPEG-4 content in the ISO base media file format.[8]

A 3GP file is always big-endian, storing and transferring the most significant bytes first.[citation needed]

3G2

The 3G2 file format can store the same video streams and most of the audio streams used in the 2007 3GP file format. In addition, 3G2 stores audio streams as EVRC, EVRC-B, EVRC-WB, 13K (QCELP), SMV or VMR-WB, which was specified by 3GPP2 for use in ISO base media file format.[12] The 3G2 specification also defined some enhancements to 3GPP Timed Text. 3G2 file format does not store Enhanced aacPlus (HE-AAC v2) and AMR-WB+ audio streams.[7] For the storage of MPEG-4 media (AAC audio, MPEG-4 Part 2 video, MPEG-4 Part 10 – H.264/AVC) in 3G2 files, the 3G2 specification refers to the MP4 file format and the AVC file format specification, which described usage of this content in the ISO base media file format. For the storage of H.263 and AMR content 3G2 specification refers to the 3GP file format specification.[13]

Device support

  • Most 3G capable mobile phones support the playback and recording of video in 3GP format (memory, maximum filesize for playback and recording, and resolution limits exist and vary).[citation needed]
  • Some newer/higher-end phones without 3G capabilities may also playback and record in this format (again, with said limitations).[citation needed]
  • Audio imported from CD onto a PlayStation 3 when it is set to encode to the MPEG-4 AAC format copies onto USB devices in the 3GP format.[citation needed]
  • The Nintendo 3DS used 3GP technology to play YouTube videos.
  • Apple iDevices used to support files for playback only as passthrough files, hence no editing ability, but since iOS 9 this has been deprecated meaning files of this format have to be manually converted to H.264.[citation needed]

Software support

When transferred to a computer, 3GP movies can be viewed on Microsoft Windows, Apple macOS, and the various Linux-based operating systems; on the former two with Windows Media Player[14] and Apple QuickTime[15] respectively (their built-in media players), and on all three with VLC media player.[16] Programs such as Media Player Classic, K-Multimedia Player, Totem, RealPlayer, MPlayer, and GOM Player can also be used.

3GP and 3G2 files can be encoded and decoded with open source software FFmpeg.[17]

See also

References

  1. ^ a b c ETSI 3GPP 3GPP TS 26.244; Transparent end-to-end packet switched streaming service (PSS); 3GPP file format (3GP) Retrieved on 2009-06-02.
  2. ^ a b c 3GPP2 (2003). "3GPP2 C.S0050, 3GPP2 File Formats for Multimedia Services, File Format for Multimedia Services for cdma2000". 3GPP2. Retrieved 2009-06-12.
  3. ^ ETSI (2009-04) ETSI TS 126 234 V8.2.0 (2009-04); 3GPP TS 26.234; Transparent end-to-end Packet-switched Streaming Service (PSS); Protocols and codecs Page 58. Retrieved on 2009-06-02.
  4. ^ ETSI (2009-01) ETSI TS 126 140 V8.0.0 (2009-01); 3GPP TS 26.140; Multimedia Messaging Service (MMS); Media formats and codes Page 11. Retrieved on 2009-06-02.
  5. ^ ETSI (June 2009). "ETSI TS 126 346 V8.3.0 (2009-06); 3GPP TS 26.346; Multimedia Broadcast/Multicast Service (MBMS); Protocols and codecs". ETSI. p. 85. Retrieved 2009-10-13.
  6. ^ ETSI (2009-01) ETSI TS 126 141 V8.0.0 (2009-01); 3GPP TS 26.141; IP Multimedia System (IMS) Messaging and Presence; Media formats and codecs Page 10. Retrieved on 2009-06-02.
  7. ^ a b c (PDF). 3GPP2. 18 May 2007: 67, 68. Archived from the original (PDF) on 7 October 2009. Retrieved 2009-06-12. {{cite journal}}: Cite journal requires |journal= (help)
  8. ^ a b "3GPP TS 26.244; Transparent end-to-end packet switched streaming service (PSS); 3GPP file format (3GP)" (PDF). ETSI 3GPP. 2008-12-11: 9. Retrieved 2009-05-30. {{cite journal}}: Cite journal requires |journal= (help)
  9. ^ ISO (April 2006). . Archived from the original on 2008-07-14. Retrieved 2009-12-26. {{cite journal}}: Cite journal requires |journal= (help)
  10. ^ ISO (October 2009). "ISO Base Media File Format white paper – Proposal". Chiariglione. Retrieved 2009-12-26. {{cite journal}}: Cite journal requires |journal= (help)
  11. ^ International Organization for Standardization (2008). "ISO/IEC 14496-12:2008, Information technology -- Coding of audio-visual objects -- Part 12: ISO base media file format" (PDF). International Organization for Standardization: 95. Retrieved 2009-05-30. {{cite journal}}: Cite journal requires |journal= (help)
  12. ^ a b . Registration authority for code-points in "MP4 Family" files – mp4ra.org. 2008. Archived from the original on 2009-04-19. Retrieved 2009-05-31. {{cite journal}}: Cite journal requires |journal= (help)
  13. ^ 3GPP2 (18 May 2007). (PDF). 3GPP2: 21. Archived from the original (PDF) on 7 October 2009. Retrieved 2009-06-12. {{cite journal}}: Cite journal requires |journal= (help)
  14. ^ "File types supported by Windows Media Player". Microsoft. Retrieved 2020-07-25.
  15. ^ "What's New in QuickTime 6.3 + 3GPP". Apple, Inc. Retrieved 2020-07-25.
  16. ^ "VLC Media Player features". VLC. Retrieved 2020-07-25.
  17. ^ "FFmpeg, General Documentation, Supported File Formats and Codecs". FFmpeg. Retrieved 2009-06-11.

External links

  • 3GPP codecs specifications; 3G and beyond / GSM, 26 series
  • 3GPP file format (3GP); 3GPP TS 26.244; Transparent end-to-end packet switched streaming service (PSS) - specification
  • 3GPP2 specifications
  • RFC 3839, MIME Type Registrations for 3rd Generation Partnership Project (3GPP) Multimedia files
  • RFC 4393, MIME Type Registrations for 3GPP2 Multimedia Files
  • RFC 4281, The Codecs Parameter for "Bucket" Media Types
  • 3GP & 3G2 File Formats


February 22, 2023
this, article, includes, list, general, references, lacks, sufficient, corresponding, inline, citations, please, help, improve, this, article, introducing, more, precise, citations, september, 2017, learn, when, remove, this, template, message, 3gpp, file, for. This article includes a list of general references but it lacks sufficient corresponding inline citations Please help to improve this article by introducing more precise citations September 2017 Learn how and when to remove this template message 3GP 3GPP file format is a multimedia container format defined by the Third Generation Partnership Project 3GPP for 3G UMTS multimedia services It is used on 3G mobile phones but can also be played on some 2G and 4G phones 3GPFilename extension 3gpInternet media typevideo 3gpp audio 3gppUniform Type Identifier UTI public 3gppDeveloped by3GPPInitial release4 April 2003 19 years ago 2003 04 04 1 Latest release17 0 0 1 7 April 2022 10 months ago 2022 04 07 Type of formatContainer formatContainer foraudio video textExtended fromMPEG 4 Part 12Open format YesFree format No3G2Filename extension 3g2Internet media typevideo 3gpp2 audio 3gpp2Uniform Type Identifier UTI public 3gpp2Developed by3GPP2Initial releaseJanuary 2004 19 years ago 2004 01 2 Latest releaseC S0050 B v1 0 2 June 2007 15 years ago 2007 06 Type of formatContainer formatContainer foraudio video textExtended fromMPEG 4 Part 12Open format YesFree format No3G2 3GPP2 file format is a multimedia container format defined by the 3GPP2 for 3G CDMA2000 multimedia services It is very similar to the 3GP file format but consumes less space amp bandwidth and has some extensions and limitations in comparison to 3GP Contents 1 Specifications 2 Technical details 2 1 3GP 2 2 3G2 3 Device support 4 Software support 5 See also 6 References 7 External linksSpecifications Edit3GP is defined in the ETSI 3GPP technical specification 1 3GP is a required file format for video and associated speech audio media types and timed text in ETSI 3GPP technical specifications for IP Multimedia Subsystem IMS Multimedia Messaging Service MMS Multimedia Broadcast Multicast Service MBMS and Transparent end to end Packet switched Streaming Service PSS 3 4 5 6 3G2 is defined in the 3GPP2 technical specification 2 Technical details EditThe factual accuracy of parts of this article those related to 3GP codec list see release 12 of 2016 p 65 may be compromised due to out of date information The reason given is 3GP has expanded codec lists while 3G2 has stagnated Please help update this article to reflect recent events or newly available information February 2021 Relations between ISO Base Media File Format MP4 File Format 3GPP file format and 3GPP2 file format Based on the 3GPP2 technical specification published on 18 May 2007 7 The 3GP and 3G2 file formats are both structurally based on the ISO base media file format defined in ISO IEC 14496 12 MPEG 4 Part 12 8 9 10 but older versions of the 3GP file format did not use some of its features 7 3GP and 3G2 are container formats similar to MPEG 4 Part 14 MP4 which is also based on MPEG 4 Part 12 The 3GP and 3G2 file format were designed to decrease storage and bandwidth requirements to accommodate mobile phones They are good for lower end smartphones for faster streaming amp download 3GP and 3G2 are similar standards but with some differences 3GPP file format was designed for GSM based phones and may have the filename extension 3gp 3GPP2 file format was designed for CDMA based phones and may have the filename extension 3g2Some cell phones use the mp4 extension for 3GP video 3GP Edit The 3GP file format stores video streams as MPEG 4 Part 2 H 263 or MPEG 4 Part 10 AVC H 264 and audio streams as AMR NB AMR WB AMR WB AAC LC HE AAC v1 or Enhanced aacPlus HE AAC v2 3GPP allowed use of AMR and H 263 codecs in the ISO base media file format MPEG 4 Part 12 because 3GPP specified the usage of the Sample Entry and template fields in the ISO base media file format as well as defining new boxes to which codecs refer These extensions were registered by the registration authority for code points in ISO base media file format MP4 Family files 11 12 For the storage of MPEG 4 media specific information in 3GP files the 3GP specification refers to MP4 and the AVC file format which are also based on the ISO base media file format The MP4 and the AVC file format specifications described usage of MPEG 4 content in the ISO base media file format 8 A 3GP file is always big endian storing and transferring the most significant bytes first citation needed 3G2 Edit The 3G2 file format can store the same video streams and most of the audio streams used in the 2007 3GP file format In addition 3G2 stores audio streams as EVRC EVRC B EVRC WB 13K QCELP SMV or VMR WB which was specified by 3GPP2 for use in ISO base media file format 12 The 3G2 specification also defined some enhancements to 3GPP Timed Text 3G2 file format does not store Enhanced aacPlus HE AAC v2 and AMR WB audio streams 7 For the storage of MPEG 4 media AAC audio MPEG 4 Part 2 video MPEG 4 Part 10 H 264 AVC in 3G2 files the 3G2 specification refers to the MP4 file format and the AVC file format specification which described usage of this content in the ISO base media file format For the storage of H 263 and AMR content 3G2 specification refers to the 3GP file format specification 13 Device support EditMost 3G capable mobile phones support the playback and recording of video in 3GP format memory maximum filesize for playback and recording and resolution limits exist and vary citation needed Some newer higher end phones without 3G capabilities may also playback and record in this format again with said limitations citation needed Audio imported from CD onto a PlayStation 3 when it is set to encode to the MPEG 4 AAC format copies onto USB devices in the 3GP format citation needed The Nintendo 3DS used 3GP technology to play YouTube videos Apple iDevices used to support files for playback only as passthrough files hence no editing ability but since iOS 9 this has been deprecated meaning files of this format have to be manually converted to H 264 citation needed Software support EditWhen transferred to a computer 3GP movies can be viewed on Microsoft Windows Apple macOS and the various Linux based operating systems on the former two with Windows Media Player 14 and Apple QuickTime 15 respectively their built in media players and on all three with VLC media player 16 Programs such as Media Player Classic K Multimedia Player Totem RealPlayer MPlayer and GOM Player can also be used 3GP and 3G2 files can be encoded and decoded with open source software FFmpeg 17 See also Edit computer programming portalComparison of audio video container formatsReferences Edit a b c ETSI 3GPP 3GPP TS 26 244 Transparent end to end packet switched streaming service PSS 3GPP file format 3GP Retrieved on 2009 06 02 a b c 3GPP2 2003 3GPP2 C S0050 3GPP2 File Formats for Multimedia Services File Format for Multimedia Services for cdma2000 3GPP2 Retrieved 2009 06 12 ETSI 2009 04 ETSI TS 126 234 V8 2 0 2009 04 3GPP TS 26 234 Transparent end to end Packet switched Streaming Service PSS Protocols and codecs Page 58 Retrieved on 2009 06 02 ETSI 2009 01 ETSI TS 126 140 V8 0 0 2009 01 3GPP TS 26 140 Multimedia Messaging Service MMS Media formats and codes Page 11 Retrieved on 2009 06 02 ETSI June 2009 ETSI TS 126 346 V8 3 0 2009 06 3GPP TS 26 346 Multimedia Broadcast Multicast Service MBMS Protocols and codecs ETSI p 85 Retrieved 2009 10 13 ETSI 2009 01 ETSI TS 126 141 V8 0 0 2009 01 3GPP TS 26 141 IP Multimedia System IMS Messaging and Presence Media formats and codecs Page 10 Retrieved on 2009 06 02 a b c 3GPP2 C S0050 B Version 1 0 3GPP2 File Formats for Multimedia Services PDF 3GPP2 18 May 2007 67 68 Archived from the original PDF on 7 October 2009 Retrieved 2009 06 12 a href Template Cite journal html title Template Cite journal cite journal a Cite journal requires journal help a b 3GPP TS 26 244 Transparent end to end packet switched streaming service PSS 3GPP file format 3GP PDF ETSI 3GPP 2008 12 11 9 Retrieved 2009 05 30 a href Template Cite journal html title Template Cite journal cite journal a Cite journal requires journal help ISO April 2006 ISO Base Media File Format white paper Proposal Archived from the original on 2008 07 14 Retrieved 2009 12 26 a href Template Cite journal html title Template Cite journal cite journal a Cite journal requires journal help ISO October 2009 ISO Base Media File Format white paper Proposal Chiariglione Retrieved 2009 12 26 a href Template Cite journal html title Template Cite journal cite journal a Cite journal requires journal help International Organization for Standardization 2008 ISO IEC 14496 12 2008 Information technology Coding of audio visual objects Part 12 ISO base media file format PDF International Organization for Standardization 95 Retrieved 2009 05 30 a href Template Cite journal html title Template Cite journal cite journal a Cite journal requires journal help a b Registered types Codecs Registration authority for code points in MP4 Family files mp4ra org 2008 Archived from the original on 2009 04 19 Retrieved 2009 05 31 a href Template Cite journal html title Template Cite journal cite journal a Cite journal requires journal help 3GPP2 18 May 2007 3GPP2 C S0050 B Version 1 0 3GPP2 File Formats for Multimedia Services PDF 3GPP2 21 Archived from the original PDF on 7 October 2009 Retrieved 2009 06 12 a href Template Cite journal html title Template Cite journal cite journal a Cite journal requires journal help File types supported by Windows Media Player Microsoft Retrieved 2020 07 25 What s New in QuickTime 6 3 3GPP Apple Inc Retrieved 2020 07 25 VLC Media Player features VLC Retrieved 2020 07 25 FFmpeg General Documentation Supported File Formats and Codecs FFmpeg Retrieved 2009 06 11 External links Edit3GPP codecs specifications 3G and beyond GSM 26 series 3GPP file format 3GP 3GPP TS 26 244 Transparent end to end packet switched streaming service PSS specification 3GPP2 specifications 3GPP2 File Formats for Multimedia Services 3GPP2 C S0050 B Version 1 0 specification RFC 3839 MIME Type Registrations for 3rd Generation Partnership Project 3GPP Multimedia files RFC 4393 MIME Type Registrations for 3GPP2 Multimedia Files RFC 4281 The Codecs Parameter for Bucket Media Types 3GP amp 3G2 File Formats Retrieved from https en wikipedia org w index php title 3GP and 3G2 amp oldid 1138829419, wikipedia, wiki, book, books, library,

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