Method for dynamically forming caption image data and caption data flow

Abstract

Present invention discloses method for dynamical generating caption image data and data stream. It contains 1, visiting caption user describing record obtaining source data, 2, proceed caption attributive resolving to source data of caption user record, obtaining generating caption data rule or listing promise, 3, utilizing step 2 obtained rule or listing promise automatically drawing generating caption image using computer graphic equipment through calculation, and obtaining caption each frame picture image data, single frame image continuously constituting a caption image data sequence, 4, encoding caption image data in step 3 and packaging to data stream fitting digit caption standard data stream. Present invention can enrich digit caption display form, raise data generation and broadcast mobility, diversity and self control performance without manual operation.

Description

technical field [0001] The present invention relates to the data service in the digital subtitle front-end system in the field of digital television, specifically, the present invention relates to the method for dynamically generating subtitle image data and subtitle data stream in the digital subtitle front-end system in the digital television field. Background technique [0002] In the field of digital television, digital subtitles are a service application that is generally carried out on terminal display devices such as televisions. At present, the digital subtitle technology generally adopts the Digital Video Broadcasting (DVB) Subtitling System standard (DVB Subtitle). This subtitle standard stipulates the method and processing process for terminal equipment to receive, analyze and display subtitle data, and defines the subtitle data stream should meet requirements. However, this standard does not specify how the front-end systems that generate these subtitle data str...

AI Technical Summary

Problems solved by technology

However, this standard does not specify how the front-end systems that generate these subtitle data streams can generate data streams that meet the subtitle standards and may have multiple subtitle formats. The richness of subtitle content in the stream and the subtitle forms that can be displayed are different, and the convenience of user operation is also different, so the system functions are different.

Under the condition of meeting the same terminal data standard, some subtitle systems can display subtitles in multiple formats and styles, while some systems only provide simpler and single subtitle services in the data

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