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Method and device for broadcasting caption primitives

A picture element and subtitle technology, applied in the field of subtitle picture element broadcasting method and device, can solve the problem that subtitle broadcasting cannot achieve real-time multi-type broadcasting uniformity, etc., and achieve the effect of ensuring fluency and real-time performance.

Inactive Publication Date: 2015-04-22
CHINA DIGITAL VIDEO BEIJING
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a subtitle graphic element broadcasting method and device to solve the problem that the existing subtitle broadcasting cannot achieve real-time performance and the unity of multi-type broadcasting

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  • Method and device for broadcasting caption primitives
  • Method and device for broadcasting caption primitives
  • Method and device for broadcasting caption primitives

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Embodiment Construction

[0044] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0045] For the broadcasting of programs with very high real-time requirements, such as stock consulting programs, the present invention proposes a subtitle broadcasting method, which can ensure the real-time performance of the program broadcast, and can also use a single subtitle machine to realize multiple types of subtitles Mixed playout of primitives.

[0046] The following will be described in detail through examples.

[0047] refer to figure 1 , is a flowchart of a method for playing subtitle graphic elements according to an embodiment of the present invention.

[0048] Step 101, preset multiple types of template graphic elements and the broadcasting mode of each type of graphic elements;

[0049] In the process of making ...

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Abstract

The invention provides a method and a device for broadcasting caption primitives, which is used for solving the problems that the real-time is not achieved when existing captions are broadcast and the unity for broadcasting multiple types of captions is not achieved. The method comprises the following steps: acquiring broadcasting primitives from a render queue in real time and rendering the acquired broadcasting primitives as well as adding the rendered broadcasting primitives to a broadcasting queue, wherein the broadcasting primitives comprise multiple types of primitives; and acquiring broadcasting primitives from the broadcasting queue in real time and broadcasting the broadcasting primitives in sequence, wherein the multiple types of broadcasting primitives are mixed into one-path signals for outputting. According to the method and device, the real-time for broadcasting the primitives is ensured, the fluency of broadcasting pictures is also ensured, and multiple types of primitives are broadcast on a signal caption machine in a mixed mode.

Description

technical field [0001] The invention relates to the technical field of subtitles, in particular to a method and device for playing subtitle graphics elements. Background technique [0002] The production of programs mainly includes the production of video and the production of subtitles, wherein the production of subtitles is usually completed by a subtitle machine. The subtitle machine is generally composed of a PC plus a professional subtitle superimposition card and corresponding software, which is used to superimpose graphic subtitles on the video signal. The characteristics of the subtitle machine are: real-time superimposition, no need to generate, bright colors, small signal loss, suitable for superimposing station logos, corner logos, left fly advertisements, etc. on TV stations. [0003] The basic unit of subtitle production is the graphic element. When the current subtitle machine broadcasts subtitles, it first renders all the broadcasting graphic elements at one ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/262
Inventor 吴定昉
Owner CHINA DIGITAL VIDEO BEIJING
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