3GP and 3GPP Mobile Video Formats
Submitted by Pocketcine on February 9, 2007 - 4:36pm.
3GPP is an acronym for 3rd Generation Partnership Project, a telecom industry partnership formed in 1998 to promote collaboration around communication standards. A sister project is 3GPP2, the International Telecommunication Union's (ITU) International Mobile Telecommunications "IMT-2000" initiaitive. It's a co-operation between ARIB/TTC (Japan), CCSA (China), TIA (North America) and TTA (South Korea). Both standards try to establish uniform delivery of rich media (like pocket videos) over 3rd generation broadband cellular networks. Both standards are based on MPEG-4. See our overview article on MPEG-4.
3GPP standards have been developed for GSM (Global System for Mobile Communication networks, whereas 3GPP2 standards were developed for CDMA (Code Division Multiple Access) 2000 networks. The respective standards committees have worked closely to ensure interoperability. Both support MPEG-4 and H.263 video, AAC and AMC audio, and 3G text. 3GPP2 has the additional ability to use QCELP audio Movie Fragments, allowing content to be delivered incrementally over standard TCP networks.
3GP is a file format defined by 3GPP for multimedia on mobile phones, based on MPEG-4. (See our related "MPEG-4 Overview" article.) 3GP stores video streams as MPEG-4, and audio streams as AMR-NB or AAC-LC formats. 3GP also defines image sizes and bandwidth, so content is optimized for mobile display screens.
3GP files can be viewed on PCs with the latest RealPlayer or QuickTime players.
Extensions
.3gp 3GPP standard, GSM Network, Video: MPEG-4, H.263, Audio: AAC, AMR
.3g2 3GPP2 standard, CDMA2000 Network, Video: MPEG-4, H.263, Audio: AAC, AMR, QCELP.
Note that not all cellular networks support the 3GPP or 3GPP2 specifications, using 10 proprietary systems instead.
More information about 3GPP can be found here. More information about 3GPP2 can be found here.
3GPP standards have been developed for GSM (Global System for Mobile Communication networks, whereas 3GPP2 standards were developed for CDMA (Code Division Multiple Access) 2000 networks. The respective standards committees have worked closely to ensure interoperability. Both support MPEG-4 and H.263 video, AAC and AMC audio, and 3G text. 3GPP2 has the additional ability to use QCELP audio Movie Fragments, allowing content to be delivered incrementally over standard TCP networks.
3GP is a file format defined by 3GPP for multimedia on mobile phones, based on MPEG-4. (See our related "MPEG-4 Overview" article.) 3GP stores video streams as MPEG-4, and audio streams as AMR-NB or AAC-LC formats. 3GP also defines image sizes and bandwidth, so content is optimized for mobile display screens.
3GP files can be viewed on PCs with the latest RealPlayer or QuickTime players.
Extensions
.3gp 3GPP standard, GSM Network, Video: MPEG-4, H.263, Audio: AAC, AMR
.3g2 3GPP2 standard, CDMA2000 Network, Video: MPEG-4, H.263, Audio: AAC, AMR, QCELP.
Note that not all cellular networks support the 3GPP or 3GPP2 specifications, using 10 proprietary systems instead.
More information about 3GPP can be found here. More information about 3GPP2 can be found here.
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