Module symphonia_core::meta

The meta module defines basic metadata elements, and management structures.

Structs

• Metadata
  A reference to the metadata inside of a MetadataLog.
• MetadataBuilder
  MetadataBuilder is the builder for Metadata revisions.
• MetadataLog
  MetadataLog is a container for time-ordered Metadata revisions.
• MetadataOptions
  MetadataOptions is a common set of options that all metadata readers use.
• MetadataRevision
  Metadata is a container for a single discrete revision of metadata information.
• Size
  A 2 dimensional (width and height) size type.
• Tag
  A Tag encapsulates a key-value pair of metadata.
• VendorData
  VendorData is any binary metadata that is proprietary to a certain application or vendor.
• Visual
  A Visual is any 2 dimensional graphic.

Enums

• ColorMode
  ColorMode indicates how the color of a pixel is encoded in a Visual.
• Limit
  Limit defines an upper-bound on how much of a resource should be allocated when the amount to be allocated is specified by the media stream, which is untrusted. A limit will place an upper-bound on this allocation at the risk of breaking potentially valid streams. Limits are used to prevent denial-of-service attacks.
• StandardTagKey
  StandardTagKey is an enumeration providing standardized keys for common tag types. A tag reader may assign a StandardTagKey to a Tag if the tag’s key is generally accepted to map to a specific usage.
• StandardVisualKey
  StandardVisualKey is an enumeration providing standardized keys for common visual dispositions. A demuxer may assign a StandardVisualKey to a Visual if the disposition of the attached visual is known and can be mapped to a standard key.
• Value
  A Tag value.

Traits

• MetadataReader