Multi-channel decoder synchronous control method and device, and storage medium

A technology of synchronous control and decoder, which is applied in the direction of TV, color TV parts, electrical components, etc. It can solve the problems of out-of-sync video stream and tearing of the picture, achieve smooth picture display and solve the effect of picture tearing

Active Publication Date: 2020-04-17
KYLAND TECH CO LTD +1
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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 multi-channel decoder synchronization control method, device and storage medium, which realizes the time synchronization between all decoders included in the decoder group, and solves the problem of video stream output from multiple decoders to the video wall. The problem of screen tearing caused by asynchrony enables the video wall composed of multiple single screens to display the screen smoothly

Method used

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  • Multi-channel decoder synchronous control method and device, and storage medium
  • Multi-channel decoder synchronous control method and device, and storage medium
  • Multi-channel decoder synchronous control method and device, and storage medium

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Embodiment 1

[0030] Figure 1a It is a flow chart of a multi-channel decoder synchronous control method in Embodiment 1 of the present invention. The technical solution of this embodiment is suitable for providing display images to pre-bound single screens by the decoders included in the decoder grouping, and obtaining In the case of combined display screens, the method can be executed by a multi-channel decoder synchronization control device, which can be implemented by software and / or hardware, and can be integrated in various general-purpose computer equipment, specifically including the following steps:

[0031] Step 110, the master decoder performs time synchronization with the slave decoders in the decoder group, and each decoder in the decoder group is used to provide display images to the pre-bound single screen to obtain a combined display image.

[0032] Among them, the decoder group is a decoder group composed of a master decoder and at least one slave decoder according to the de...

Embodiment 2

[0054] Figure 2a It is a flow chart of a multi-channel decoder synchronous control method in Embodiment 2 of the present invention. The technical solution of this embodiment is suitable for providing display images to a pre-bound single screen by the decoders included in the decoder grouping, and obtaining In the case of combined display screens, the method can be executed by a multi-channel decoder synchronization control device, which can be implemented by software and / or hardware, and can be integrated in various general-purpose computer equipment, specifically including the following steps:

[0055] Step 210, time synchronization is performed between the slave decoder and the master decoder in the decoder group, and each decoder in the decoder group is used to provide a display picture to a pre-bound single screen to obtain a combined display picture.

[0056] Among them, each decoder in the decoder group is bound to a single screen included in the TV wall, which is used ...

Embodiment 3

[0086] image 3 It is a schematic structural diagram of a multi-channel decoder synchronization control device in Embodiment 3 of the present invention. The multi-channel decoder synchronization control device includes:

[0087] Decoder time synchronization module 310, used for time synchronization between the main decoder and the slave decoders in the decoder group, each decoder in the decoder group is used to provide display pictures to the pre-bound single screen, so as to Get the combined display screen;

[0088] The switching time determination module 320 is used for the main decoder to complete the rendering of the next picture of the bound single screen according to the rendering completion message sent by each slave decoder for the next picture of the bound single screen, and its own rendering completion time for the next picture of the bound single screen , to determine the switching time;

[0089] The switching time sending module 330 is used for the main decoder t...

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Abstract

The embodiment of the invention discloses a multi-channel decoder synchronous control method and device and a storage medium. The method comprises the steps that a master decoder and slave decoders ina decoder group to which the master decoder belongs perform time synchronization; the master decoder determines switching time according to rendering completion messages sent by the slave decoders for a next picture of a bound single screen and rendering completion time of the master decoder for the next picture of the bound single screen; and the master decoder sends the switching time to each slave decoder, so that each decoder in the decoder group provides a corresponding next picture for the bound single screen for display at the switching time. According to the technical scheme of the embodiment of the invention, the time synchronization operation is carried out on the decoders contained in the decoder group, so the problem of picture tearing caused by desynchrony of a plurality of video streams output from the decoders to the television wall is solved, and the television wall formed by a plurality of single screens can carry out smooth picture display.

Description

technical field [0001] The embodiment of the present invention relates to video and audio decoder control technology, in particular to a multi-channel decoder synchronization control method, device and storage medium. Background technique [0002] With the increasing demand for splicing of physical screens in the fields of security, video surveillance, etc., it is obvious that only a single decoder can not meet the needs of large-screen display. The use of multiple decoders can realize single-screen splicing. Display effects such as opening a window or dragging an image to any position. [0003] In the prior art, when multiple decoders are spliced ​​and used, the following problems are prone to occur: video streams are sequentially input to multiple decoders, resulting in asynchronous output of video streams to the video wall, and inconsistent decoded video stream sizes, resulting in inconsistent decoding time. When there is no time synchronization mechanism between decoder...

Claims

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Application Information

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IPC IPC(8): H04N5/04H04N5/262H04N5/268H04N19/44
CPCH04N5/04H04N5/2624H04N5/268H04N19/44
Inventor 吴雨
Owner KYLAND TECH CO LTD
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