This MedLibrary.org supplementary page on 3GP is provided directly from the open source Wikipedia as a service to our readers. Please see the note below on authorship of this content, as well as the Wikipedia usage guidelines. To search for other content from our encyclopedia supplement, please use the form below:
Related Sponsors
3GP is a multimedia container format defined by the Third Generation Partnership Project (3GPP) for use on 3G mobile phones but can also be played on some 2G and 4G phones.
| Filename extension | .3gp .3g2 |
|---|---|
| Internet media type | video/3gpp audio/3gpp |
| Type of format | media container |
Technical details
3GP is a simplified version of the MPEG-4 Part 14 (MP4) container format, designed to decrease storage and bandwidth requirements in order to accommodate mobile phones. It stores video streams as MPEG-4 Part 2 or H.263 or MPEG-4 Part 10 (AVC/H.264), and audio streams as AMR-NB, AMR-WB, AMR-WB+, AAC-LC or HE-AAC. A 3GP file is always big-endian, storing and transferring the most significant bytes first. It also contains descriptions of image sizes and bitrate. There are two different standards for this format:
- 3GPP (for GSM-based Phones, may have filename extension .3gp)
- 3GPP2 (for CDMA-based Phones, may have filename extension .3g2)
Both are based on MPEG-4 and H.263 video, and AAC or AMR audio.
When transferred to a computer, 3GP movies can be viewed on Linux, Mac, and Windows platforms with MPlayer and VLC media player. Programs such as Media Player Classic, Totem, RealPlayer, QuickTime, and GOM Player can also be used. Some cell phones use the .mp4 extension for 3GP video.
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).
- Some newer/higher-end phones without 3G capabilities may also playback and record in this format (again, with said limitations).
- In iMovie '08, a movie exported using the "Tiny" setting is saved as a .3gp file and can be played on a Mac, an iPhone (as well as any other handset able to load and play the file), an iPod touch or using Apple's .Mac Web Gallery service.
- Audio imported from CD onto a PlayStation 3 will copy onto USB devices in the 3GP format.
External links
|
|||||||||||||||||||||||||||||||||||||||||||
Wikipedia content modification information:
- This page was last modified on 3 January 2009, at 09:16.
Wikipedia Authorship and Review
Wikipedia content provided here is not reviewed directly by MedLibrary.org. Wikipedia content is authored by an open community of volunteers and is not produced by or in any way affiliated with MedLibrary.org.
Wikipedia Usage Guidelines
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article on "3GP".
The URL for this specific entry is:
All Wikipedia text is available under the terms of the GNU Free Documentation License. (See Copyrights for details). Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc.