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Method for switching scenes

A scene switching and scene technology, applied in the multimedia field, can solve problems such as black scenes

Inactive Publication Date: 2009-12-02
CHINA DIGITAL VIDEO BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a scene switching method, which solves the black field problem in the graphic information system when switching scenes, and realizes smooth switching between multiple scenes

Method used

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Embodiment Construction

[0015] Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the present invention is described in further detail: as figure 1 As shown, it is a flow chart of the scene switching method in the embodiment of the present invention, including the following steps:

[0016] Step 101, switch the image and video IO card from the hybrid mode to the bypass mode.

[0017] When the image and video IO (Input Output, input and output) card works in mixed mode, the image and video IO card outputs the direct external video connected to the card, and outputs graphic and text information. The scene played can be multi-region graphic and text combination, active video Window and scrolling subtitles and other information; when the image video IO card works in bypass mode, the image video IO card only outputs the direct external video connected to the card, does not output graphic information, and the scene played is a single video output. Video output scenes ...

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Abstract

The embodiment of the invention discloses a method for switching scenes, which comprises the following steps: switching a blending mode of an image video input output (IO) card to a bypass mode; stopping broadcasting the current scene by using the bypass mode; starting to broadcast next scene by using the bypass mode; switching the bypass mode of the image video IO card to the blending mode, and outputting the next scene through the image video IO card; after switching the image video IO card from the bypass mode to the blending mode, broadcasting the next scene by using the blending mode. The technical scheme of the embodiment of the invention achieves the smooth switch effect among a plurality of scenes by switching the operation modes of the image video IO card.

Description

technical field [0001] The invention relates to the field of multimedia technology, in particular to a scene switching method. Background technique [0002] With the advent of the information age and the impact of network media, TV stations need more innovative programs and faster and richer information to attract more viewers. The emergence of the graphic information broadcasting system provides a more flexible solution to meet the needs of TV stations. The graphic information broadcasting system not only enriches the way of program expression and brings brand-new visual experience to the audience, but also provides richer information resources and attracts more audiences. The graphic information broadcasting system divides the screen into several areas, realizing fully automatic multi-channel information, subtitles, animation, station logo, clock, and video broadcasting on the same screen, suitable for financial information, sports live broadcast, weather forecast, real-t...

Claims

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Application Information

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IPC IPC(8): H04N5/268H04N5/262
Inventor 冯永
Owner CHINA DIGITAL VIDEO BEIJING
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