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Method and device for decoding and displaying video stream

A video stream and video technology, applied in the field of decoding, can solve the problems of high cost of management and maintenance, low efficiency, increase of virtual memory, etc., and achieve the effect of improving efficiency

Active Publication Date: 2017-09-01
HANGZHOU HIKVISION DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of a 64-bit operating system requires greater costs for product management and maintenance, so the method of increasing virtual memory is less used
[0006] To sum up, the existing solutions for single-process decoding and display of video streams have the defect of low efficiency

Method used

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  • Method and device for decoding and displaying video stream
  • Method and device for decoding and displaying video stream
  • Method and device for decoding and displaying video stream

Examples

Experimental program
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example

[0040] join figure 2 , which is an example of a flow chart of a method for decoding and displaying a video stream in the present invention, which includes the following steps:

[0041] In step 201, the client process unit receives a decoding instruction.

[0042] Taking video surveillance as an example, when the user needs to preview or playback the video code stream from a monitoring device, he sends a decoding instruction about the video code stream to the client process unit; the preview is the video code collected by the monitoring device The stream is decoded and displayed in real time, and played back, that is, the video code stream collected by the monitoring device is decoded and displayed. After the client process unit receives the decoding instruction, it will obtain the corresponding video code stream from the monitoring device.

[0043] Step 202, the client process unit and the decoding display process unit negotiate the name of the message pipe, and a message p...

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Abstract

The invention discloses a method and device for decoding and displaying video streams, wherein the method includes: a client process unit receives a decoding instruction, and judges whether at least one decoding and display process unit connected to the client process unit has an idle decoding resource , if yes, then send the video code stream to the decoding and display process unit with idle decoding resources; otherwise, the client process unit starts a new decoding and display process unit, and sends the video code stream to the newly started decoding and display process unit; The decoding and display process unit receives the video code stream, and uses the idle decoding resources to decode the video code stream and then display it. The solution of the invention can improve the efficiency of decoding and displaying video code streams.

Description

technical field [0001] The invention relates to decoding technology, in particular to a method and device for decoding and displaying video streams. Background technique [0002] At present, video streams are mostly decoded and displayed in a single-process manner, and the decoding and display functions and the client functions are executed in one process; the client process unit not only completes the client functions, but also performs decoding and display. [0003] In the prior art, the client process unit receives the decoding instruction input by the user through the video decoding interface, and inquires whether the unit has idle decoding resources. The video code stream is displayed after being decoded; if not, the decoding fails, and the failure response is fed back to the user through the video decoding interface. [0004] For a specified operating system, part of its virtual memory is occupied by the kernel space; the other part is occupied by the user space, that...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/18H04N21/44H04N21/442
Inventor 杨欣
Owner HANGZHOU HIKVISION DIGITAL TECH