RIFF Chunk
Definition
Resource Interchange File Format: the container structure used by WAV and AVI files. A hierarchy of typed chunks, each with a four-character code, a length field, and a data payload. The fmt chunk defines audio parameters; the data chunk holds PCM samples; INFO and BEXT chunks carry metadata.
Related terms
- EXIF
- Exchangeable Image File Format: a binary metadata standard defined in the IFF/TIFF structure embedded in JPEG APP1 segment and TIFF file headers....
- IPTC IIM
- International Press Telecommunications Council Information Interchange Model: a legacy binary metadata standard embedded in JPEG APP13. Carries caption, credit, copyright, and editorial...
- Makernote
- A proprietary EXIF sub-block written by the camera manufacturer to record device-specific data not covered by the EXIF standard. Canon, Nikon, Sony,...
- Moov Atom
- The master index atom in an MP4 or MOV file. Contains all track sample tables, timing information, creation and modification timestamps, and...
- XMP
- Extensible Metadata Platform: Adobe's XML-based metadata container embedded as a text packet in image files. Can carry all standard EXIF and IPTC...
Explained in
- Metadata, EXIF, and File-Structure ForensicsResource Interchange File Format: the container structure used by WAV and AVI files. A hierarchy of typed chunks, each with a four-character code, a length fie...