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Method and device for storing and playing additional information in video code stream

A technology of additional information and code stream, which is applied in the field of video processing, can solve the problem of large amount of information, and achieve the effect of ensuring security, convenient retrieval, and low cost

Active Publication Date: 2014-07-16
HANGZHOU HIKVISION DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, the inventors of the present invention have found that we need to record the exercise information in the video file of the vehicle-mounted hard disk video recorder, such as position, speed, direction, acceleration, etc., the amount of information is large, and it is changing every moment. This method of indexing files is not feasible

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  • Method and device for storing and playing additional information in video code stream
  • Method and device for storing and playing additional information in video code stream
  • Method and device for storing and playing additional information in video code stream

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Embodiment Construction

[0042] In the following description, many technical details are proposed in order to enable readers to better understand the application. However, those skilled in the art can understand that without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.

[0043] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.

[0044] The first embodiment of the present invention relates to a method for storing additional information in a video code stream. figure 1 It is a schematic flowchart of a method for storing additional information in a video code stream. Specifically, as figure 1 As shown, the method for storing additional information in the video code stream ...

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Abstract

The present invention relates to the field of video processing. Disclosed are a method for storing and playing additional information in a video code stream and a device thereof. In the present invention, additional information is inserted in a video code stream as a special type of frame. A frame header of such a frame is obtained by modifying the type and length of a frame header of an existing video frame in the video code stream, the additional information that changes with time can be recorded in a monitored video code stream, and the compatibility with existing video players can be achieved at a low price. The additional information frame is written behind an I frame corresponding to the additional information, which further facilitates search, retrieval and decoding. During the playback of recorded video data, the track playback on an electronic map can be performed very conveniently during audio and video playing, and at the same time, the real-time changing situations of the steering wheel, speedometer, and three-axis acceleration can be displayed.

Description

technical field [0001] The invention relates to the field of video processing, in particular to the technology of storing and playing additional information in the video code stream. Background technique [0002] The existing hard disk video recorder can save the video data obtained by shooting in real time while shooting. Based on the characteristics of real-time storage of video data, hard disk video recorders are widely used in the field of video surveillance. [0003] Car hard disk video recorder belongs to the subdivided market of traditional embedded hard disk video recorder, it is a new special product developed with the application of digital audio and video coding technology in vehicles. The vehicle-mounted hard disk video recorder combines advanced technologies such as digital audio and video codec, large-capacity data hard disk storage in harsh environments, automotive electronics, wireless video network transmission, and Global Positioning System (Global Positio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/435H04N21/431H04N21/4405
CPCH04N9/8205H04N21/4621
Inventor 曾喜
Owner HANGZHOU HIKVISION DIGITAL TECH
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