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Code rate control method and device, storage medium and electronic equipment

A code rate control and encoding technology, applied in the computer field, can solve problems such as code rate waste

Active Publication Date: 2021-04-09
TENCENT TECH (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a code rate control method and device, a storage medium, and electronic equipment to at least solve the technical problem of code rate waste when performing code rate control

Method used

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  • Code rate control method and device, storage medium and electronic equipment
  • Code rate control method and device, storage medium and electronic equipment
  • Code rate control method and device, storage medium and electronic equipment

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Embodiment Construction

[0020] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0021] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a code rate control method and device, a storage medium and electronic equipment. The method includes: when the i-th frame image to be transmitted is an ROI frame image, obtaining the i-th frame initial quantization parameter QP output by the ROI frame code control model i_init_roi and estimated frame size Bit of frame i i_estimate_roi , QP i_init_roi and Bit i_estimate_roi is the average quantization parameter QP of the i-1th frame obtained by encoding the i-1th frame image i‑1_real and the actual frame size Bit of the i-1th frame i‑1_real determined; use QP i_init_roi and Bit i_estimate_roi Encode the i-th frame image, and obtain the i-th frame average quantization parameter QP obtained by encoding the i-th frame image i_real_roi and the actual frame size Bit of the i-th frame i_real_roi ;according to QP i_real_roi Determine the i-th frame to update the quantization parameter QP i_nonroi , according to Bit i_real_roi Determine the i-th frame update frame size Bit i_nonroi , QP i_nonroi greater than QP i_real_roi , Bit i_nonroi Less than Bit i_real_roi ; use QP i_nonroi and Bit i_nonroi Determine the first target parameter of the i+1th frame in the code control model of the non-ROI frame, and the first target parameter is used to determine the initial quantization parameter QP of the i+1th frame when the i+1th frame image is a non-ROI frame image i+1_init_nonroi and estimated frame size Bit of frame i+1 i+1_estimate_nonroi .

Description

technical field [0001] The present invention relates to the computer field, and in particular, relates to a code rate control method and device, a storage medium and electronic equipment. Background technique [0002] When users watch a frame, they are often only interested in a part of the frame. We call this region ROI. For video software and video websites, in order to give users a better viewing experience, it is hoped that the bit rate can be allocated to the ROI, and the bit rate obtained by the non-ROI remains unchanged, that is, the image quality of the ROI is enhanced, and the image quality of the non-ROI and Originally kept the same. [0003] In related technologies, a common ROI code rate control method is as follows: after the ROI is detected, a QP-OFFSET table is generated according to the detection information, and then the table is transmitted to the encoder. When encoding a specific CTU, the encoder adjusts the QP of the current CTU according to the value o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/167H04N19/124H04N19/146H04N19/184H04N19/176
CPCH04N19/124H04N19/146H04N19/167H04N19/176H04N19/184
Inventor 赵俊
Owner TENCENT TECH (SHENZHEN) CO LTD