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Video frequency source material synthesizing method

A material and video technology, applied in the field of radio and television broadcast control systems, can solve the problems of time-consuming synthesis, low work efficiency, and easily damaged tapes, etc., and achieve the effect of convenient modification and improved synthesis efficiency

Active Publication Date: 2006-08-02
BEIJING FOUNDER ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

However, since the video recorder is a linear playback device, it is troublesome to locate the in-point and out-point of the material, and the synthesis is time-consuming; if other personnel review the synthesized material and find that it is unqualified, they need to re-compose the material, which is inefficient; at the same time, Multiple playbacks of the tape can also easily damage the tape
However, in the broadcast television system, the video server is a non-linear playback device. It is easy to locate the material, has high playback control efficiency, and has no damage to the material video content and sound. However, it has no material synthesis function and cannot be previewed before it is actually generated.
In addition, when the materials are located on different video servers, how to quickly synthesize is a difficult problem

Method used

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  • Video frequency source material synthesizing method

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the drawings and specific embodiments:

[0020] Such as figure 1 As shown, a method for synthesizing video material includes the following steps:

[0021] (1) Locate the in-point and out-point information of the video material to be synthesized from the video material library of the video server;

[0022] Specifically, this embodiment is implemented as follows:

[0023] 1) First, according to the non-linear storage characteristics of the hard disk and the characteristics of the video file system, the unique identification of the file is used to quickly query and locate each element material to be edited;

[0024] 2) Then according to the video file compression coding algorithm, extract the coding features and key frame information, etc., generate a key frame index table, use the key frame index to quickly locate the entry and exit points of the meta material, and record the information;

[0025] (2) R...

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PUM

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Abstract

A method for synthesizing video material includes utilizing control property of video server to record entrance point and exit point of material positioning and to map them to be logic mapping table for realizing logic synthesized effect, only modifying entrance point and exit point information on logic mapping table when material is required to be modified.

Description

Technical field [0001] The invention belongs to the technical field of broadcast and television broadcast control systems, and specifically relates to a method for synthesizing video material. Background technique [0002] In the broadcast and television system, the various TV programs that the audience sees are the effects of processing and synthesizing various materials. Obviously, the production of materials is a prerequisite for broadcasting, and it is also a very important link. In the material production process, a large amount of work is the composition of the material, that is, the different contents of multiple different materials are combined into one material for broadcast. In the prior art, TV stations usually use video recorders to synthesize multiple materials. When synthesizing materials, the staff first locate the in and out points of the materials to be synthesized, preview the synthesized material effects, and if there is no problem with the preview, then genera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/937G11B27/02
Inventor 郭宗明张鲁平李春华
Owner BEIJING FOUNDER ELECTRONICS CO LTD
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