Reference number
ISO/IEC 14496-18:2004
© ISO 2024
International Standard
ISO/IEC 14496-18:2004
Information technology — Coding of audio-visual objects — Part 18: Font compression and streaming
Edition 1
2004-07
Preview
No disponible en español
Publicado (Edición 1, 2004)
Esta publicación se revisó y confirmó por última vez en 2019. Por lo tanto, esta versión es la actual.
Esta norma tiene 1 modificaciones.

ISO/IEC 14496-18:2004

Idioma
Formato
CHF 96
Convertir Franco suizo (CHF) a tu moneda

Resumen

ISO/IEC 14496-18:2004 is part of the MPEG-4 suite of International Standards. It specifies font data representation, compression and streaming, providing an efficient mechanism to embed font data in MPEG-4 encoded presentations. It also defines MPEG-4 Text profiles and levels.

The ISO/IEC 14496 (MPEG-4) series has been developed by MPEG (Motion Picture Experts Group) and defines the set of technologies for compression, encoding and delivery of complex audio-visual scenes composed of different media objects:

  • video objects (natural or synthetic video);
  • audio objects;
  • still images;
  • text and vector graphics;
  • computer-animated images.

MPEG-4 provides a standardized way to:

  • represent the content of audio-visual objects;
  • describe the composition of these objects in compound media scenes;
  • encode, multiplex and synchronize the data associated with the media objects;
  • transport the media presentation over different channels;
  • interact with the audio-visual scene at the receiver's end.

An essential part of almost any media presentation involves text objects that are created using specific or custom fonts. Font selection determines the appearance of text in multimedia content and also plays a critical role in the overall scene composition, since the metric properties of a font are used for textual parts of multimedia content layout. Many thousands of fonts are available today for use in content creation. In order to assure the readability and legibility of text as well as the correct appearance and layout of content, the font data must be included (embedded) with the text objects as part of the multimedia presentation.

Informaciones generales

  • Estado
     : Publicado
    Fecha de publicación
     : 2004-07
    Etapa
    : Norma Internacional en proceso de revisión sistemática [90.20]
  • Edición
     : 1
    Número de páginas
     : 18
  • Comité Técnico :
    ISO/IEC JTC 1/SC 29
    ICS :
    35.040.40 
  • RSS actualizaciones

 Modificaciones

Las enmiendas se emiten cuando se decide que puede ser necesario agregar nuevo material a un documento de normalización existente. También pueden incluir correcciones editoriales o técnicas que deban aplicarse al documento existente.

Amendment 1

Updated semantics of decoderSpecificInfo and font data description for ISOBMFF

Edición 2014

Idioma
Formato
CHF 18
Convertir Franco suizo (CHF) a tu moneda

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