Video transcoding method, device, computer equipment and storage medium
A video transcoding and video technology, which is applied in the fields of digital video signal modification, image communication, selective content distribution, etc., can solve the problem of not being able to improve the compression rate, and achieve the effect of improving the compression efficiency and reducing the bandwidth cost.
Active Publication Date: 2021-02-09
TENCENT TECH (SHENZHEN) CO LTD
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[0004] Based on this, it is necessary to address the above-mentioned problem that the compression rate cannot be improved, and propose a video transcoding method, device, computer equipment and storage medium that can improve the compression rate and save bandwidth costs under the premise of ensuring subjective quality
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[0044] In order to make the purpose, technical solutions 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 embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.
[0045] figure 1 It is an application environment diagram of the video transcoding method in one embodiment. refer to figure 1 , and the video transcoding method is applied to a video transcoding system. The video transcoding system includes a first terminal 110 , a server 120 and a second terminal 130 . The first terminal 110 and the server 120 are connected through a network, and the server 120 and the second terminal 130 are connected through a network. The first terminal 110 and the second terminal 130 may specifically be a desktop terminal or a mobile terminal,...
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The present application relates to a video transcoding method, device, computer equipment and storage medium. The video transcoding method includes: acquiring an initial quantization parameter corresponding to an initial coding unit when encoding an initially compressed video; determining a current reference quantization parameter corresponding to a current coding unit in a current video frame according to the initial quantization parameter corresponding to the initial coding unit; determining the The quantization parameter to be encoded corresponding to the current coding unit; determine the gap between the quantization parameter to be encoded corresponding to the current coding unit and the corresponding current reference quantization parameter, and increase the quantization to be encoded corresponding to the current coding unit according to the gap parameter to obtain a target encoding quantization parameter; and encode the current coding unit according to the target encoding quantization parameter. The above video transcoding method can improve compression efficiency and reduce bandwidth cost on the premise of ensuring subjective quality.
Description
technical field [0001] The present application relates to the technical field of computer processing, and in particular, to a video transcoding method, apparatus, computer equipment and storage medium. Background technique [0002] Video transcoding refers to converting a compressed and encoded video stream into another video stream to adapt to different network bandwidths, different terminal processing capabilities and different user needs. The essence of transcoding is a process of first decoding and then encoding, so the code streams before and after transcoding may or may not follow the same video coding standard. [0003] The traditional client uploads the compressed video to the server, and the server needs to transcode the received video. The traditional video transcoding method simply re-encodes the video and cannot improve the compression rate, resulting in high bandwidth costs. SUMMARY OF THE INVENTION [0004] Based on this, it is necessary to propose a video t...
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IPC IPC(8): H04N21/2343H04N21/4402
CPCH04N21/2343H04N21/4402H04N19/124H04N19/154H04N19/61H04N19/14H04N19/146H04N19/176H04N19/196H04N19/40H04N19/136H04N19/172H04N19/194
Inventor 毛煦楠韩海旭高欣玮谷沉沉何健陈敬昌
Owner TENCENT TECH (SHENZHEN) CO LTD