Video coding method, device, computer equipment and storage medium
A video coding and video technology, applied in the fields of digital video signal modification, television, selective content distribution, etc., can solve the problems affecting video quality and video quality fluctuation, and achieve the effect of reducing quality fluctuation and improving quality
Active Publication Date: 2021-07-13
CENT SOUTH UNIV +1
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Problems solved by technology
Although this method can greatly increase the speed of video encoding, it is easy to cause fluctuations in the video quality at the junction when the video is merged, thus affecting the video quality
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[0057] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.
[0058] figure 1 It is an application scene diagram of a video coding method in an embodiment. refer to figure 1, first, the source video file is segmented to obtain a plurality of video slices, and then the video slices are transmitted to the server 102, and the server 102 performs parallel transcoding on each video slice, wherein the distributed cloud platform technology can be used for each video Slices are transcoded in parallel. Finally, the transcoded video slices are merged. It is easy to cause quality fluctuations at the joints of the merged videos. In order to minimize video q...
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The present application relates to a video encoding method, the method comprising: obtaining the forward video frame of the current video frame to be encoded, obtaining the evaluation information corresponding to the forward video frame in the current encoding, and determining the reference frame corresponding to the current video frame Video slice, obtain the reference video frame from the reference video slice, calculate the reference evaluation information corresponding to the current video frame according to the evaluation information corresponding to the reference video frame in the previous encoding, and obtain the initial frame corresponding to the current video frame in the current encoding According to the evaluation information corresponding to the forward video frame in the current encoding and the reference evaluation information corresponding to the current video frame, the initial frame-level quantization parameter is adjusted to obtain the target frame-level quantization parameter, and the current frame-level quantization parameter is adjusted according to the target frame-level quantization parameter Video frames are encoded. The video coding method effectively reduces the quality fluctuation at the joint, and improves the video quality after video merging. In addition, a video encoding device, computer equipment and storage medium are also proposed.
Description
technical field [0001] The present application relates to the field of computer processing technology, in particular to a video encoding method, device, computer equipment and storage medium. Background technique [0002] With the continuous development of Internet technology, people put forward higher requirements for visual experience. In order to improve the video transcoding speed, it is proposed to slice the video file first to obtain multiple sub-video files, then concurrently transcode each sub-video file, and finally merge the transcoded sub-video files to improve video encoding s efficiency. Although this method can greatly increase the speed of video encoding, it is easy to cause fluctuations in the video quality at the junction when the video is merged, thereby affecting the video quality. Contents of the invention [0003] Based on this, it is necessary to address the above-mentioned problems and propose a video coding method, device, computer equipment and s...
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IPC IPC(8): H04N21/845H04N21/2343H04N17/00
CPCH04N17/004H04N21/2343H04N21/8456H04N19/154
Inventor 王剑光廖念波汪亮翟海昌牟凡张昊马学睿
Owner CENT SOUTH UNIV