Video frame coding method and device, electronic equipment and medium

An encoding method and video frame technology, applied in the field of video processing, can solve problems such as video quality degradation, and achieve the effect of reducing the frame rate of the card, reducing the peak bandwidth, and improving the user experience.

Pending Publication Date: 2022-07-12
ALIBABA GRP HLDG LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the current solution, the inventor found that although the peak bandwidth and freeze rate were reduced and the fluency was improved due to the simple frame skipping operation, the video quality was greatly degraded due to the direct skipping of the video frame

Method used

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  • Video frame coding method and device, electronic equipment and medium
  • Video frame coding method and device, electronic equipment and medium
  • Video frame coding method and device, electronic equipment and medium

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Embodiment Construction

[0084] In order to make the above objects, features and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0085] In order to better illustrate the embodiments of the present application, the embodiments of the present application first introduce basic coding principles.

[0086] In actual use, there are a large number of encoders and decoders, such as H series, H263, H264, H265, H266 and other types of encoders and decoders, such as MPEG (Moving Picture Experts Group, Moving Picture Experts Group) series, Such as MPEG-2, MPEG-4 encoders, and of course, there are other types of encoders and decoders. Although there are different types of encoders, the basic principles are similar. Before introducing the basic principles of video coding, let's introduce some related technical terms:

[0087] I frame: Intra-coded picture (intra-c...

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Abstract

The embodiment of the invention provides a video frame coding method, and relates to the technical field of video processing. The method comprises the following steps: acquiring a to-be-coded video frame; determining a target frame in the video frame to be coded; the target frame comprises a video frame of a scene switching type; reducing the code rate of the target frame; adjusting a quantization parameter for the target frame according to a preset fluency parameter and the reduced residual code rate; encoding the reduced video frame according to the quantization parameter; and allocating the reduced code rate to at least one to-be-coded video frame except the target frame. According to the embodiment of the invention, under the condition that the video quality is basically unchanged, the peak bandwidth is reduced, the frame blocking rate is reduced, and the user experience is better.

Description

technical field [0001] The present application relates to the technical field of video processing, and in particular, to a video frame encoding method, apparatus, electronic device and medium. Background technique [0002] With the development of network technology, more and more users use video to communicate on the Internet, such as one-to-one video communication, many-to-many video chat, video conference, live video, etc. However, in practical applications, due to network, device and other reasons, video freezes may occur, and video freezes are a key problem affecting user experience. The video freeze is generally caused by the scene switching of the video content. Since the time domain between the frames before and after the scene switching of the video content has no correlation, the next frame can no longer be predicted based on the previous frame, resulting in the next frame. The bit rate may be very large. In this way, for example, during a video conference, especi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/44H04N21/4402H04N19/124H04N19/146
CPCH04N21/44008H04N21/440218H04N21/440281H04N19/124H04N19/146
Inventor 刘捷
Owner ALIBABA GRP HLDG LTD
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