3GP
From Wikipedia, the free encyclopedia
3GP is a multimedia container format defined by the Third Generation Partnership Project (3GPP) for use on 3G mobile phones.
| File extension: | .3gp .3g2 |
|---|---|
| MIME type: | video/3gpp |
| Type of format: | media container |
Contents |
[edit] 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 or H.263, and audio streams as AMR-NB or AAC-LC. 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 H263 video, and AAC or AMR audio.
[edit] Hardware Support
- Most 3G capable mobile phones support the playback and recording of video in 3GP format.
- Some newer phones without 3G capabilities may also playback and record in this format.
[edit] Software Support
[edit] Playback
[edit] Encoding/Decoding
[edit] External links
| Multimedia compression formats | ||||||
|---|---|---|---|---|---|---|
| Video compression formats | ISO/IEC | MPEG-1 | MPEG-2 | MPEG-4 | MPEG-4/AVC | ITU-T | H.261 | H.262 | H.263 | H.264 | Others | AVS | Dirac | Indeo | MJPEG | RealVideo | VC-1 | Theora | VP6 | VP7 | WMV |
| Audio compression formats | ISO/IEC MPEG | MPEG-1 Layer III (MP3) | MPEG-1 Layer II | AAC | HE-AAC | ITU-T | G.711 | G.722 | G.722.1 | G.722.2 | G.723 | G.723.1 | G.726 | G.728 | G.729 | G.729.1 | G.729a | Others | AC3 | ATRAC | FLAC | iLBC | Monkey's Audio | Musepack | RealAudio | SHN | Speex | Vorbis | WavPack | WMA |
| Image compression formats | ISO/IEC/ITU-T | JPEG | JPEG 2000 | JPEG-LS | JBIG | JBIG2 | -- | -- | Others | BMP | GIF | ILBM | PCX | PNG | TGA | TIFF | WMP |
| Media container formats | General | 3GP | ASF | AVI | FLV | Matroska | MP4 | MXF | NUT | Ogg | Ogg Media | QuickTime | RealMedia | Audio only | AIFF | AU | WAV | -- | -- |
