ISO/IEC 14478-3:1998
(Main)Information technology - Computer graphics and image processing - Presentation Environment for Multimedia Objects (PREMO) - Part 3: Multimedia Systems Services
Information technology - Computer graphics and image processing - Presentation Environment for Multimedia Objects (PREMO) - Part 3: Multimedia Systems Services
This part of ISO/IEC 14478 defines a standard set of multimedia system services that can be used by multimedia application developers in a variety of computing environments. The focus is on enabling multimedia applications in a heterogeneous, distributed computing environment. Throughout this part of ISO/IEC 14478, this component will also be referred to as "Multimedia Systems Services", and abbreviated as MSS. The Multimedia Systems Services constitutes a framework of "middleware" - system software components lying in the region between the generic operating system and specific applications. As middleware, the Multimedia Systems Services marshals lower-level system resources to the task of supporting multimedia processing, providing a set of common services which can be used by multimedia application developers. The Multimedia Systems Services encompasses the following characteristics: a) provision of an abstract type for a media processing node, extensible through subtyping to support abstractions of real media processing hardware or software; b) provision of an abstract type for the data flow path or the connection between media processing nodes, encapsulating low-level connection and transport semantics; c) grouping of multiple processing nodes and connections into a single unit for purposes of resource reservation and stream control; d) provision or a media dataflow abstraction. with support for a variety of position, time and/or synchronization capabilities; e) separation of the media format abstractions from the dataflow abstraction; f) synchronous exceptions and asynchronous events; g) application visible characterization of object capabilities; h) registration of objects in a distributed environment by location and capabilities; i) retrieval of objects in a distributed environment by location and constraints; j) definition of a Media Stream Protocol to support media independent transport and synchronization. The Multimedia Systems Services rely on the object model of ISO/IEC 14478-1 (Fundamentals of PREMO) and the object types and non-object data types defined in TSO/IEC 14478-2 (PREMO Foundation Component).
Technologies de l'information — Infographie et traitement d'images — Environnement de présentation d'objets multimédia (PREMO) — Partie 3: Services pour les systèmes multimédia
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ISO/IEC 14478-3:1998 is a standard published by the International Organization for Standardization (ISO). Its full title is "Information technology - Computer graphics and image processing - Presentation Environment for Multimedia Objects (PREMO) - Part 3: Multimedia Systems Services". This standard covers: This part of ISO/IEC 14478 defines a standard set of multimedia system services that can be used by multimedia application developers in a variety of computing environments. The focus is on enabling multimedia applications in a heterogeneous, distributed computing environment. Throughout this part of ISO/IEC 14478, this component will also be referred to as "Multimedia Systems Services", and abbreviated as MSS. The Multimedia Systems Services constitutes a framework of "middleware" - system software components lying in the region between the generic operating system and specific applications. As middleware, the Multimedia Systems Services marshals lower-level system resources to the task of supporting multimedia processing, providing a set of common services which can be used by multimedia application developers. The Multimedia Systems Services encompasses the following characteristics: a) provision of an abstract type for a media processing node, extensible through subtyping to support abstractions of real media processing hardware or software; b) provision of an abstract type for the data flow path or the connection between media processing nodes, encapsulating low-level connection and transport semantics; c) grouping of multiple processing nodes and connections into a single unit for purposes of resource reservation and stream control; d) provision or a media dataflow abstraction. with support for a variety of position, time and/or synchronization capabilities; e) separation of the media format abstractions from the dataflow abstraction; f) synchronous exceptions and asynchronous events; g) application visible characterization of object capabilities; h) registration of objects in a distributed environment by location and capabilities; i) retrieval of objects in a distributed environment by location and constraints; j) definition of a Media Stream Protocol to support media independent transport and synchronization. The Multimedia Systems Services rely on the object model of ISO/IEC 14478-1 (Fundamentals of PREMO) and the object types and non-object data types defined in TSO/IEC 14478-2 (PREMO Foundation Component).
This part of ISO/IEC 14478 defines a standard set of multimedia system services that can be used by multimedia application developers in a variety of computing environments. The focus is on enabling multimedia applications in a heterogeneous, distributed computing environment. Throughout this part of ISO/IEC 14478, this component will also be referred to as "Multimedia Systems Services", and abbreviated as MSS. The Multimedia Systems Services constitutes a framework of "middleware" - system software components lying in the region between the generic operating system and specific applications. As middleware, the Multimedia Systems Services marshals lower-level system resources to the task of supporting multimedia processing, providing a set of common services which can be used by multimedia application developers. The Multimedia Systems Services encompasses the following characteristics: a) provision of an abstract type for a media processing node, extensible through subtyping to support abstractions of real media processing hardware or software; b) provision of an abstract type for the data flow path or the connection between media processing nodes, encapsulating low-level connection and transport semantics; c) grouping of multiple processing nodes and connections into a single unit for purposes of resource reservation and stream control; d) provision or a media dataflow abstraction. with support for a variety of position, time and/or synchronization capabilities; e) separation of the media format abstractions from the dataflow abstraction; f) synchronous exceptions and asynchronous events; g) application visible characterization of object capabilities; h) registration of objects in a distributed environment by location and capabilities; i) retrieval of objects in a distributed environment by location and constraints; j) definition of a Media Stream Protocol to support media independent transport and synchronization. The Multimedia Systems Services rely on the object model of ISO/IEC 14478-1 (Fundamentals of PREMO) and the object types and non-object data types defined in TSO/IEC 14478-2 (PREMO Foundation Component).
ISO/IEC 14478-3:1998 is classified under the following ICS (International Classification for Standards) categories: 35.140 - Computer graphics. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO/IEC 14478-3:1998 has the following relationships with other standards: It is inter standard links to ISO 13385-2:2011. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
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ISO/IEC 14478-3:1998は、コンピューターグラフィックスと画像処理向けのPREMO（Presentation Environment for Multimedia Objects）の一部であるマルチメディアシステムサービスの標準を定義しています。これは、様々なコンピューティング環境でマルチメディアアプリケーション開発者が使用できるサービスセットを意味します。主な目的は、異種かつ分散されたコンピューティング環境でのマルチメディアアプリケーションを可能にすることです。ISO/IEC 14478のこの部分では、「マルチメディアシステムサービス」とも呼ばれ、MSSと略されます。マルチメディアシステムサービスは、汎用オペレーティングシステムと特定のアプリケーションの間に位置する「ミドルウェア」フレームワークとして構成されます。ミドルウェアとして、マルチメディアシステムサービスは低レベルなシステムリソースをマルチメディア処理のサポートに利用し、マルチメディアアプリケーション開発者が使用できる共通のサービスを提供します。マルチメディアシステムサービスには、以下の特徴があります：a）メディア処理ノードの抽象型の提供。リアルなメディア処理ハードウェアやソフトウェアの抽象化をサポートするためにサブタイプ化が可能。b）メディア処理ノード間のデータフローパスまたは接続の抽象型の提供。低レベルの接続と輸送のセマンティクスをカプセル化。c）複数の処理ノードと接続をリソース予約とストリーム制御の目的で1つの単位にグループ化。d）位置、時間、または同期の機能をサポートするメディアデータフローの抽象化の提供。e）メディア形式の抽象化をデータフローの抽象化から分離。f）同期的な例外と非同期的なイベント。g）オブジェクトの機能をアプリケーションから見えるように特徴付け。h）分散環境でのオブジェクトの位置と機能による登録。i）分散環境でのオブジェクトの位置と制約による検索。j）メディア独立な輸送と同期をサポートするメディアストリームプロトコルの定義。マルチメディアシステムサービスは、ISO/IEC 14478-1のオブジェクトモデルとISO/IEC 14478-2で定義されたオブジェクト型と非オブジェクトデータ型を利用しています。
ISO/IEC 14478-3:1998 is a standard that defines a set of multimedia system services for developers of multimedia applications. These services are designed to support multimedia processing in a distributed computing environment. The Multimedia Systems Services, also known as MSS, act as middleware between the operating system and specific applications. It provides common services for multimedia processing and includes features such as media processing node abstractions, connection abstractions, resource reservation, media dataflow abstractions, separation of media formats from dataflow, exception handling, object capabilities, distributed object registration and retrieval, and a Media Stream Protocol for transport and synchronization. The Multimedia Systems Services are based on the object model defined in ISO/IEC 14478-1 and utilize object types and data types defined in ISO/IEC 14478-2.
ISO/IEC 14478-3:1998는 컴퓨터 그래픽 및 이미지 처리를 위한 PREMO(Presentation Environment for Multimedia Objects)의 일부인 멀티미디어 시스템 서비스에 대한 표준을 정의합니다. 이는 다양한 컴퓨팅 환경에서 멀티미디어 응용 프로그램 개발자가 사용할 수 있는 서비스 세트를 의미합니다. 주요 목표는 이질적이고 분산된 컴퓨팅 환경에서 멀티미디어 응용 프로그램을 가능하게 하는 것입니다. ISO/IEC 14478의 이 부분에서는 "멀티미디어 시스템 서비스"라고도 불리며, MSS로 약어화됩니다. 멀티미디어 시스템 서비스는 일반 운영 체제와 구체적인 응용 프로그램 사이에 위치한 "미들웨어" 프레임워크로 구성됩니다. 미들웨어로서 멀티미디어 시스템 서비스는 하위 수준 시스템 리소스를 멀티미디어 처리를 지원하는 작업에 활용하여 멀티미디어 응용 프로그램 개발자가 사용할 수 있는 공통 서비스를 제공합니다. 멀티미디어 시스템 서비스는 다음과 같은 특성을 포함합니다: a) 매체 처리 노드에 대한 추상 유형 제공, 하위 유형 확장을 통해 실제 매체 처리 하드웨어나 소프트웨어에 대한 추상화 지원; b) 매체 처리 노드 간의 데이터 흐름 경로 또는 연결에 대한 추상 유형 제공, 저수준 연결 및 전송 의미론 캡슐화; c) 자원 예약 및 스트림 제어를 위해 여러 처리 노드 및 연결을 단일 유닛으로 그룹화; d) 다양한 위치, 시간 및/또는 동기화 기능을 지원하는 미디어 데이터 흐름 추상화 제공; e) 미디어 형식 추상화와 데이터 흐름 추상화의 분리; f) 동기식 예외 처리 및 비동기식 이벤트; g) 객체 기능의 애플리케이션 가시화; h) 위치 및 기능에 따른 분산 환경에서 개체 등록; i) 위치 및 제약 조건에 따른 분산 환경에서 개체 검색; j) 미디어 독립적인 전송 및 동기화를 지원하기 위한 미디어 스트림 프로토콜의 정의. 멀티미디어 시스템 서비스는 ISO/IEC 14478-1의 객체 모델과 ISO/IEC 14478-2에서 정의된 객체 유형 및 비객체 데이터 유형을 기반으로합니다.
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