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Program recording method and device

A program and encoder technology, applied in the field of audio and video processing, can solve problems such as easy failure of ultra-high-definition program recording, and achieve the effect of solving easy failure and ensuring clarity

Pending Publication Date: 2021-11-09
SAMSUNG ELECTRONICS CHINA R&D CENT +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the main purpose of the present invention is to provide a program recording method and device, which can solve the problem that ultra-high-definition program recording is prone to failure, and will not affect the user's viewing experience of the recorded program

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Embodiment Construction

[0037] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] After careful study and analysis of the existing program directory scheme, the inventor found that the problem of easy recording failure in the existing program recording scheme is caused by the contradiction between the high bit rate of the video and the bottleneck of storage device writing. Specifically, in the process of recording video programs, the decoded original video needs to be re-encoded, and the bit rate of ultra-high-definition video programs is very high, so the amount of video data generated per unit time in the encoding process will be very large. Large, because the encoded video data is not written into the storage device immediately, but is cached in the video buffer, if the video data in the video buffer is writte...

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Abstract

The invention discloses a program recording method and device. The method comprises the following steps: decoding original video data to be recorded; dividing each frame of image of the corresponding video into a user region of interest and a background region based on the decoded video data by using a preset deep neural network model; according to the principle that the coding rate of the region of interest of the user is greater than the coding rate of the background region, coding the decoded video data by using a coder, and writing a coding result into a storage device through a video buffer; and controlling the output code rate of the encoder is controlled in real time based on the cache state of the video cache, the I / O speed of the storage device and the output code rate of the encoder, so that the video cache does not have the condition of data overflow. By adopting the method and the device, the problem that the recording of the ultra-high-definition program is easy to fail can be avoided, and the watching experience of a user on the recorded program cannot be influenced.

Description

technical field [0001] The invention relates to the technical field of audio and video processing, in particular to a program recording method and device. Background technique [0002] With the advent of the 5G era, major countries and regions around the world have proposed and formulated their own 5G promotion plans to accelerate the 5G commercial process. With the large-scale commercial use of 5G in my country and the continuous evolution of the ultra-high-definition video industry, the next five years will be a period of strategic opportunities for the technological development and transformation of achievements in China's ultra-high-definition video industry. 5G will drive a leap in the application of ultra-high-definition video industry. The combination of 5G and ultra-high-definition video technology has created infinite possibilities for the future. [0003] The definition of ultra-high-definition video comes from the video screen resolution of 4K and above. Compared...

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Application Information

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IPC IPC(8): H04N21/231H04N21/2343H04N21/2662H04N21/433H04N21/4402H04N21/466H04N21/4728
CPCH04N21/23113H04N21/234309H04N21/2662H04N21/4334H04N21/440218H04N21/4666H04N21/4728H04N19/167H04N19/172H04N19/152H04N19/115H04N19/124G06N3/0464G06N3/044G06N3/08H04N19/15G06N3/04G06T5/70
Inventor 黄巍陈祥虎张勇吴俊恒
Owner SAMSUNG ELECTRONICS CHINA R&D CENT
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