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Organization method, synchronous playing method and segmentation clearance method of video encoding data

A video encoding and video technology, applied in the field of video processing, can solve the problems that multi-channel videos cannot be played synchronously at the same time, and the operation of clearing video segments is difficult, etc., to achieve the effects of efficient clearing and modification, accurate positioning, and improved use efficiency

Active Publication Date: 2019-03-29
CHINESE AERONAUTICAL RADIO ELECTRONICS RES INST
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AI Technical Summary

Problems solved by technology

[0009] Aiming at the shortcoming that multiple videos cannot be played synchronously at the same time and the shortcoming that video segment clearing operation is difficult, the object of the present invention is to propose a method for organizing video encoding data, so that special players can Perform multi-channel synchronous playback, and facilitate the video data clearing tool to input PTS time as a parameter, which can quickly rewrite the original data in the code stream to meet the needs of some special applications

Method used

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  • Organization method, synchronous playing method and segmentation clearance method of video encoding data
  • Organization method, synchronous playing method and segmentation clearance method of video encoding data
  • Organization method, synchronous playing method and segmentation clearance method of video encoding data

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] a) Video stream organizing device:

[0033] Such as figure 1 As shown, the beginning of the video file consists of a fixed 32-byte file header and a 20-byte video stream header, followed by a series of frame-based video data packets and absolute time packets. The specific definition of the file header is shown in Table 1, the specific definition of the video stream header is shown in Table 2, the specific definition of the video data packet header is shown in Table 3, and the specific definition of the absolute time packet is shown in Table 4.

[0034] Table 1 file header definition

[0035]

[0036] Table 2 Definition of video stream header

[0037]

[0038]

[0039] Table 3 Definition of Video Data Packet Header

[0040]

[0041] Table 4 Absolute Time Package Definition

[0042] name

bit width (bit)

i...

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Abstract

The invention discloses an organization method of video encoding data. The method comprises the following program steps: step A.1, generating a file header and a video stream header according to customization rules and known information; step A.2, carrying out packaging processing on ES code stream data after encoding to form a video data packet, wherein a packet header of the video data packet includes PTS time information; step A.3, generating an absolute time packet according to received calendar time or default time; and step A.4, adding a series of video data packets and absolute time packets after the video header and the video stream header to form a video file. The video file provided by the method can enable a dedicated player to carry out multi-path simultaneous synchronous playing according to the PTS time information in a code stream, can enable a video data clearance tool to quickly rewrite original data in the code stream with PTS time as parameter input, and satisfies needs of certain special application occasions.

Description

technical field [0001] The invention belongs to the field of video processing, and relates to an organization method, a synchronous playing method and a segmentation clearing method of video coded and compressed video data. Background technique [0002] With the rapid development of information technology, video and audio recording systems and video surveillance systems have been widely used in all aspects of social life, such as driving recorders, airborne video recorders, bank video surveillance equipment, etc. The objects received and processed by these devices are For video, multi-channel and high-resolution are the inevitable trend of the development of this type of equipment. Because the amount of raw video data is very large, for example, the amount of data generated by a camera with 1080p resolution in 1 second is 3.564Gb, so in these equipment The input video needs to be encoded and compressed internally. Calculated with the usual 200:1 video compression ratio, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/8547H04N21/43H04N21/434H04N21/458H04N21/462
CPCH04N21/4307H04N21/4343H04N21/4586H04N21/462H04N21/8547
Inventor 章圣焰胡轶群
Owner CHINESE AERONAUTICAL RADIO ELECTRONICS RES INST
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