MPEG-4 Part 17

MPEG-4 Part 17

:

MPEG-4 is a suite of standards which has many "parts", where each part standardizes various entities related to multimedia, such as audio, video, and file formats. To know more about various parts and what they mean, please see the entry for MPEG-4.

MPEG-4 Part 17, or MPEG-4 Timed Text is the text based subtitle format for MPEG-4. It is also streamable, which was one of the main aspects when creating the format. It is mainly aimed for use in the .mp4 container, but can also be used in the .3gp container (as 3GPP Timed Text), which is technically almost identical with .mp4 but more used in cell phones. 3GPP Timed Text is exactly the same as MPEG-4 Timed Text when used in the .mp4 container. QuickTime Pro and MP4Box can create or produce these kind of subtitle streams out of various subtitle input formats. MP4Box uses the fourcc tx3g for MPEG-4 Timed Text because of its inherently higher compatibility. MPEG-4 Timed Text is heavily based on XML semantics.

The ISO document defining the Timed Text format is ISO 14496-17.

upporting implementations

On October 7, 2005, VideoLAN added decoding support for MPEG-4 Timed Text subtitles in VLC. [http://forum.videolan.org/viewtopic.php?t=9507]

On October 30, 2005, Gabest added decoding support for MPEG-4 Timed Text subtitles in MPC. [http://forum.doom9.org/showthread.php?t=101835]

ee also

*Ogg Writ

External links

* [http://gpac.sourceforge.net/doc_ttxt.php GPAC MP4Box explanation of 3GPP Timed Text]


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • MPEG-4 Part 14 — (MP4) …   Википедия

  • MPEG-4 Part 2 — is a video compression technology developed by MPEG. It belongs to the MPEG 4 ISO/IEC standard (ISO/IEC 14496 2). It is a discrete cosine transform compression standard, similar to previous standards such as MPEG 1 and MPEG 2. Several popular… …   Wikipedia

  • MPEG-4 Part 3 — MPEG 4 is a suite of standards which has many parts , where each part standardizes various entities related to multimedia, such as audio, video, and file formats. To know more about various parts and what they mean, please see the entry for MPEG… …   Wikipedia

  • Mpeg-4 part 2 — ou MPEG 4 ASP (Advanced Simple Profile) est la partie 2 de la norme MPEG 4 pour la compression vidéo. Elle est utilisée entre autres par les codecs DivX 3 à 6 (propriétaire), et Xvid (sous licence GNU GPL). La partie 10 de la norme MPEG 4… …   Wikipédia en Français

  • MPEG-4 Part 3 — Norme de compression audio. Développé par MPEG Type de format Compression audio. Extension du MPEG 4 Standard(s) ISO/IEC 14496 3 …   Wikipédia en Français

  • MPEG-4 Part 14 — MPEG 4 Part 14, ou MP4, également appelé ISO/IEC 14496 14, est une partie de la norme MPEG 4 spécifiant un format conteneur pour encapsuler des données de type multimédia (audio ou vidéo essentiellement). L extension de nom de fichier… …   Wikipédia en Français

  • MPEG-4 Part 11 — MPEG 4 is a suite of standards which has many parts , where each part standardizes various entities related to multimedia, such as audio, video, and file formats. To know more about various parts and what they mean, please see the entry for MPEG… …   Wikipedia

  • MPEG-4 Part 20 — MPEG 4 Part 20, or MPEG 4 Lightweight Application Scene Representation (LASeR) is the new rich mediastandard dedicated to the mobile, embedded and consumer electronics industries specified by the MPEG standardization group.LASeR is based on SVG… …   Wikipedia

  • MPEG-4 Part 2 — ou MPEG 4 Visual est la partie 2 de la norme MPEG 4 pour la compression vidéo. Elle est utilisée entre autres par les codecs DivX 3 à 6 (propriétaire), et Xvid (sous licence GNU GPL). Elle comprend deux profils : le Simple Profile (MPEG 4… …   Wikipédia en Français

  • MPEG-2 Part 2 — (formally, ISO/IEC 13818 2) or H.262, is a video compression standard developed in a joint partnership between the ITU T and the ISO/IEC Moving Picture Experts Group organizations.It was approved in 1994 but in 1996 it was extended and was added… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”