Pojęcia - DASH
0 21 карточка michalesq
Вопрос  |
Ответ |
|||
|---|---|---|---|---|
|
access unit
|
unit of a media stream with an assigned Media Presentation time
|
|||
|
accessibility
|
degree to which a media content or certain media content components are available to as many people as possible
|
|||
|
Adaptation Set
|
set of interchangeable encoded versions of one or several media content components
|
|||
|
asset
|
content including media and metadata together with the rights to use the content by the content provider
|
|||
|
available Segment
|
Segment that is accessible at its assigned HTTP-URL and a possibly assigned byte range that is the request with an HTTP GET results in a reply of the Segment and 2xx status code
|
|||
|
Bitstream Switching Segment
|
Segment that if present contains essential data to switch to the Representation it is assigned to
|
|||
|
complementary Representation
|
Representation which complements at least one dependent Representation
|
|||
|
continuous media
|
media with an inherent notion of time, for example, speech, audio, video, timed text or timed metadata
|
|||
|
DASH metric
|
metric identified by a key and defined in this part of ISO/IEC 23009
|
|||
|
dependent Representation
|
Representation for which Segments from its complementary Representations are necessary for presentation and/or decoding of the contained media content components
|
|||
|
earliest presentation time
|
smallest presentation time of any access unit of a Media Segment or Subsegment for a media stream
|
|||
|
event
|
aperiodic sparse media-time related auxiliary information to the DASH client or to an application
|
|||
|
event stream
|
sequence of related events
|
|||
|
group
|
collection of Adaptation Sets that are not expected to be presented simultaneously
|
|||
|
HTTP-URL
|
URL with a fixed scheme of “http” or “https”
|
|||
|
Index Segment
|
Segment that primarily contains indexing information for Media Segments
|
|||
|
Initialization Segment
|
Segment containing metadata that is necessary to present the media streams encapsulated in Media Segments
|
|||
|
media content
|
one media content period or a contiguous sequence of media content periods
|
|||
|
media content component
|
one continuous component of the media content with an assigned media component type that can be encoded individually into a media stream
|
|||
|
media content component type
|
single type of media content such as audio, video, or text
|
|||
|
media content period
|
set of media content components that have a common timeline as well as relationships on how they can be presented
|
|||
