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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- 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 less efficient
And for the usage scenarios of a large number of users, it takes a lot of extra work to ensure that the user's clocks are consistent
Method used
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[0055]Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.
[0056] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term ...
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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...
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Login to View More IPC IPC(8): H04N21/8547H04N21/44H04N21/433H04N21/239
CPCH04N21/8547H04N21/44004H04N21/4331H04N21/2393
Inventor 李磊
Owner HANGZHOU EZVIZ SOFTWARE CO LTD