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Method and system for real-time transcoding of videos HDR and SDR

A video and transcoding technology, applied in the field of video transcoding, can solve the problems of reduced image quality, less video resources, and time-consuming production of HDR videos, etc., to achieve the effects of improving transcoding performance, reducing brightness, and increasing speed

Active Publication Date: 2021-01-22
上海网达软件股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There are two types of video, HDR and SDR. For playback terminals that do not support HDR video playback, when HDR video is forcibly played, the original image details and color shades cannot be retained, and the image quality is reduced. For playback terminals that support HDR video, Due to the lack of HDR video resources at present, it takes a lot of time to make HDR video, which makes the HDR video playback terminal unable to play its own advantages well.

Method used

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  • Method and system for real-time transcoding of videos HDR and SDR
  • Method and system for real-time transcoding of videos HDR and SDR
  • Method and system for real-time transcoding of videos HDR and SDR

Examples

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no. 1 example

[0057] Such as figure 1 As shown, this embodiment provides a method for real-time video HDR and SDR transcoding, including the following steps:

[0058] S1: Receive any source video stream or file including HDR or SDR input, decapsulate the source video stream or file through the decapsulation module, and decapsulate the video code stream.

[0059] Specifically, in the same way as the traditional method, any input video stream or file is decapsulated to obtain a video code stream and an audio code stream.

[0060] S2: The video decoding module decodes the video code stream into YUV data, and then processes the YUV data through the toning processing module, and transfers it to any kind of toned processing including SDR or HDR. The above YUV data.

[0061] Further, as figure 2 As shown, in step S2, the YUV data is processed by the toning processing module, and transferred to any kind of YUV data after toning processing including SDR or HDR, specifically:

[0062] S21: Trans...

no. 2 example

[0083] This embodiment provides a system for performing real-time video HDR and SDR transcoding corresponding to the method for video HDR and SDR real-time transcoding in the first embodiment, including:

[0084] The decapsulation module 1 is used to receive any source video stream or file including HDR or SDR input, decapsulate the source video stream or file through the decapsulation module, and decapsulate the video code stream;

[0085] Decoding module 2, for decoding the video code stream into YUV data;

[0086] The toning processing module 3 is used to process the YUV data through the toning processing module, and convert it into any kind of YUV data after toning processing including SDR or HDR

[0087]An encoding module 4, configured to encode the processed YUV data to form the encoded video stream;

[0088] The encapsulation module 5 is used for encapsulating the encoded video code stream and outputting it.

[0089] Further, the toning processing module 3 also includ...

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Abstract

The invention relates to the technical field of video transcoding, and provides a video HDR and SDR real-time transcoding method and system, and the method comprises the steps: S1, receiving any one inputted source video stream or file comprising HDR or SDR, carrying out the decapsulation of the source video stream or file through a decapsulation module, and obtaining a video code stream through decapsulation; S2, a video decoding module decodes the video code stream into YUV data, and then processes the YUV data through a toning processing module, and converts the YUV data into any one of theYUV data subjected to toning processing including SDR or HDR; and S3, encoding the processed YUV data to form the encoded video code stream, packaging the encoded video code stream, and outputting the packaged video code stream. Real-time mutual conversion of 4K HDR and SDR can be performed while the source video color is reserved.

Description

technical field [0001] The present invention relates to the technical field of video transcoding, in particular to the technical field of real-time mutual conversion of 4K HDR and SDR videos, and in particular to a method and system for real-time video HDR and SDR transcoding. Background technique [0002] Some of the decoder chips and display devices currently on the market are relatively old, and can only play low dynamic range 4K SDR videos, but cannot support 4K HDR high dynamic range video playback. When the 4K HDR video is directly played on a playback terminal that does not support 4K HDR, the original image details and color shades of the image cannot be preserved, and the image quality is significantly reduced. [0003] In addition, for playback terminals that support 4K HDR video, when 4K HDR video needs to be used for playback, due to the relative lack of 4K HDR video resources, it takes a lot of time to produce 4K HDR video. [0004] As mentioned above, there ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/2343H04N21/4402H04N9/64
CPCH04N21/4402H04N21/2343H04N9/64
Inventor 唐杰王红玲李庆瑜戴立言
Owner 上海网达软件股份有限公司
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