A text interactive display method

An interactive display and text technology, which is applied to color TV parts, TV system parts, digital non-picture data transmission, etc., can solve the problems that text cannot be rendered and displayed, and end users cannot obtain text display effects, etc., to achieve Easily extendable effects

Inactive Publication Date: 2008-08-06
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1) The text description information can only be obtained from the code stream. Once the package where the description information is located is lost, the text cannot be rendered and displayed;
[0005] 2) End users cannot obtain the display effect of the text according to their own needs (such as the position where the text appears, the size of the font, the color, etc.)

Method used

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  • A text interactive display method
  • A text interactive display method
  • A text interactive display method

Examples

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0020] The present invention defines a text scene description structure (Text SceneDescription, referred to as TSD) at the decoding end, its structure see figure 2 ), TSD is a collection of all the information required for text display, and is used to describe various information required for text display (such as the position information of the text, the font color of the text, the font type, the font size, the background information, the special effect information, etc. ), the display module renders and positions the text currently to be displayed through the scene description information and then displays it on the display device. TSD can provide at least one interface to modify its content, which can be filled with the corresponding description information obtained from the code stream, or multiple interfaces from the outside (the externa...

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Abstract

The invention discloses a text interactive display method which defines a text scene describing structural body containing text describing information at a decoding end. The method comprises the following steps: step 1: a text stream is decoded through a text stream decoder to respectively obtain plain text information and text describing information; step 2: whether the text describing information is extracted from a code stream is judged; if the code stream containing new text describing information, the text describing information is selected by sifting, and assignment of the text scene describing structural body is completed; step 3: according to the text describing information contained in the text scene describing structural body, a current text is organized and is correctly displayed on a terminal display device. The text interactive display method ensures that a terminal sets a text display mode under the condition of describing information absence, and that a terminal user can organize and display text information according to personal preference and requirements.

Description

technical field [0001] The invention relates to the field of multimedia processing, in particular to a method for interactively displaying text. Background technique [0002] 3GPP defines a text transmission format (Timed Text Format), the text stream consists of two parts, one is the text description information (sample description) (such as font, display position, etc.), the other is the text sample (text sample), which consists of a string and some adjustment information (text modifiers) (not required). After receiving the text stream, the decoder obtains text information and text description information through decoding, and then displays the text information on the terminal by the composite display module. The text display process defined in the DVB subtitle system is also one-way, that is, the current coded text stream is obtained from the code stream (TS stream) through the preprocessing module, passes through the subtitle data storage, and then obtains the correspon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/52H04N7/025H04N5/278
Inventor 王翼林福辉
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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