Video frame transmission method and method, device and system for determining video frame transmission delay

A transmission delay and video frame technology, applied in the field of video processing, can solve problems such as low efficiency and dependence on manual operation, and achieve the effect of improving computing efficiency and computing accuracy

Active Publication Date: 2020-06-16
HANGZHOU EZVIZ SOFTWARE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Compared with the first method above, the second method is simple to set up the test environment, but still relies on manual operation and is le

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  • Video frame transmission method and method, device and system for determining video frame transmission delay
  • Video frame transmission method and method, device and system for determining video frame transmission delay
  • Video frame transmission method and method, device and system for determining video frame transmission delay

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[0055] The exemplary embodiments will be described in detail here, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present application. Rather, they are merely examples of devices and methods consistent with some aspects of the application as detailed in the appended claims.

[0056] The terms used in this application are only for the purpose of describing specific embodiments, and are not intended to limit the application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and...

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Abstract

The invention provides a video frame transmission method and a method, device and system for determining video frame transmission delay. The method for determining the transmission delay of the videoframe comprises the following steps: determining the transmission delay of the video frame; receiving a video frame from a video production end and storing the video frame into a preset receiving buffer area, the video frame carrying timestamp information t, the t being determined by the video production end according to a moment when the video frame is put into a sending buffer area and a pre-obtained relative time T0' of the video production end; determining home terminal relative time T0 in the home terminal at the same moment as the T0'; adopting the t and the T0 to predict the time Tx' for the video production end to put the video frame in a sending buffer area; when the video frame needs to be taken out from the receiving buffer area, determining the transmission delay of the video frame according to the current moment Tx and the predicted Tx'. The whole process does not depend on manual operation and does not depend on a test environment, and the calculation efficiency and the calculation precision of the transmission delay are improved.

Description

technical field [0001] The present application relates to the field of video processing, in particular to a video frame transmission method and a method, device and system for determining video frame transmission delay. Background technique [0002] Video delay is an important technical indicator of multimedia system. In an end-to-end application, the time for encoding, sending, receiving, decoding, and rendering of a frame can be called video latency. Among them, the encoding delay and decoding rendering delay can be measured in a specific environment, and are generally fixed in a specific algorithm implementation and machine environment. However, the period from when the production end sends the video frame into the sending buffer to when the receiving end takes the video frame out of the receiving buffer is affected by the network, and this period is called transmission delay. [0003] In related technologies, the transmission delay during video frame transmission is ge...

Claims

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Application Information

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IPC IPC(8): H04N21/8547H04N21/44H04N21/433H04N21/239
CPCH04N21/8547H04N21/44004H04N21/4331H04N21/2393
Inventor 李磊
Owner HANGZHOU EZVIZ SOFTWARE CO LTD
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