DOM Tree Linking for Transport Media Stream Control
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Solution Overview
Problem
Current web browsers cannot directly access presentation control information from transport media streams embedded in HTML 5 documents, limiting the ability to control and display multimedia content effectively.
Innovation Solution
A reception device and method that generates a DOM tree for an HTML document, linking the presentation control information from a transport media stream beneath the video element, allowing access and display control of multimedia content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If web browsers use standard HTML parsing to generate DOM trees, then web page display is achieved, but access to presentation control information in transport media streams is not enabled
Solution Approach 1:
The patent embeds the second DOM tree (generated from presentation control information in transport media streams) within the first DOM tree (generated from HTML document) by linking it beneath the video element node. This nesting structure allows the browser to access presentation control information through the existing DOM interface while maintaining the original HTML parsing workflow, thus enabling information access without significantly increasing system complexity.
2Adaptability or versatility
If transport media streams are referenced from external sources, then multimedia content is displayed, but integration with HTML application side is limited
Solution Approach 1:
The patent introduces a DOM tree as an intermediary structure that bridges the HTML application side and the transport media stream. By generating a DOM tree from the presentation control information (second HTML document) and linking it to the video element, the system creates a standardized interface that allows HTML applications to access and control multimedia content using familiar DOM manipulation methods, thus improving both adaptability and ease of operation.
Data Source
AI summary
It is possible to access a presentation control information (HTML document) element contained in a transport media stream from an HTML application side.A first HTML document for displaying a web page is received. In addition, the transport media stream which contains a predetermined number of transport media and a second HTML document as the presentation control information of the transport media is received. A DOM tree of the first HTML document is generated. When a video element that references the transport media stream is present in the first HTML document, the DOM tree that is generated according to the second HTML document contained in the transport media stream is linked beneath a node of the video element.