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Video encoding and decoding method and device

A video codec and video coding technology, which is applied in the direction of digital video signal modification, electrical components, image communication, etc., can solve problems such as P frame cannot be decoded correctly, video frame is lost, and video playback is stuck at the receiving end, so as to improve accuracy. Decoding efficiency, reducing the probability of incorrect decoding, and reducing the effect of playing stuttering

Pending Publication Date: 2021-10-29
BIGO TECH PTE LTD
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Problems solved by technology

[0004] However, since the P frame can only rely on its previous video frame for decoding, when the network status between the video sending end and the video receiving end is poor, video frames may be lost during transmission
Therefore, it is easy to cause some P frames to be unable to be decoded correctly, which reduces the correct decoding efficiency of video frames, and increases the probability of problems such as playback freezes at the video receiving end.

Method used

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  • Video encoding and decoding method and device
  • Video encoding and decoding method and device
  • Video encoding and decoding method and device

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Embodiment Construction

[0051]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.

[0052] Please refer to figure 1 , which shows a schematic structural diagram of a video processing system provided by an embodiment of the present application. The video processing system is the implementation environment involved in the video codec method. Such as figure 1 As shown, the video processing system may include: an encoding end 101 and at least one decoding end 102 . figur...

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Abstract

The invention provides a video coding and decoding method and device, and the method comprises the steps: obtaining a non-first to-be-coded video frame, the transmission frame loss rates of a coding end and a decoding end, and a reference frame set, the reference frame set comprises a video frame corresponding to at least one coded video frame, wherein the video frame corresponding to the coded video frame which can be successfully decoded by the decoding end in the reference frame set is a reliable frame; according to the frame loss rate and a video coding rule, determining target reference frames corresponding to the to-be-coded video frames from the reference frame set, wherein the video coding rule comprises that the larger the frame loss rate is, the more target reference frames corresponding to the more video frames in the to-be-coded video are reliable frames; determining the distance between the to-be-coded video frame and the target reference frame on the display time sequence as the reference distance of the to-be-coded video frame; encoding a to-be-encoded video frame by using the target reference frame to obtain an encoded video frame; and sending the coded video frame and the reference distance to a decoding end. According to the invention, the correct decoding efficiency of the video frame is improved.

Description

technical field [0001] The present application relates to the field of computer technology, and in particular to a video encoding and decoding method and device. Background technique [0002] In order to facilitate video transmission, the video sending end usually encodes each video frame in the video stream to be sent before sending the video stream to obtain an encoded video stream. And send the encoded video stream to the video receiving end. [0003] Currently encoded video streams mainly include two types of video frames: intra-frame coding frames (also called Intra frames, I frames) and inter-frame predictive coding frames (also called Inter frames, P frames) arranged at intervals. Wherein, the I frame is a frame that can be decoded independently, that is, when the I frame is decoded at the video receiving end, the decoded video frame can be obtained without referring to other frame data. P frames cannot be decoded independently. That is, when a P frame is decoded a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/146H04N19/172H04N19/46H04N19/65
CPCH04N19/146H04N19/172H04N19/46H04N19/65
Inventor 要瑞宵张凯明
Owner BIGO TECH PTE LTD
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