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Dynamic audio and video coding and transmission method, system, device and storage medium

A video encoding and storage medium technology, applied in the field of dedicated line transmission, can solve the problem of low bandwidth utilization of dedicated line channels, and achieve the effect of improving bandwidth utilization and improving effects

Active Publication Date: 2022-04-26
深圳市融讯视通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a dynamic audio and video coding transmission method, system, device and storage medium, which can solve the bandwidth utilization of dedicated line channels in view of the characteristics of audio and video coding rate changes and fixed bandwidth To solve the problem of low efficiency, improve the utilization rate of audio and video data bandwidth in the transmission of dedicated line channels, and then improve the effect of audio and video communication

Method used

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  • Dynamic audio and video coding and transmission method, system, device and storage medium
  • Dynamic audio and video coding and transmission method, system, device and storage medium
  • Dynamic audio and video coding and transmission method, system, device and storage medium

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Embodiment 1

[0057] see figure 2 , In one embodiment, the present invention provides a dynamic audio and video coding transmission method, comprising the following steps:

[0058] S110. Send current audio / video encoding parameters, and generate the corresponding maximum value of audio / video data in the H221 frame structure according to the current audio / video encoding parameters.

[0059] It should be noted that the encoder control unit sends audio encoding parameters to the audio encoder, and sends the maximum value of audio data in the H221 frame structure to the H221 framing control unit according to the current audio parameters. The encoder control unit sends video encoding parameters to the video encoder, and sends the maximum value of video data in the H221 frame structure to the H221 framing control unit according to the current video parameters.

[0060] S120. Acquire and save audio / video data, generate a current audio / video buffer data amount according to the audio / video data, a...

Embodiment 2

[0081] In this embodiment, video is coded with fixed parameters, and audio is coded with dynamic parameters.

[0082] At the beginning, the audio and video encoding parameters are sent according to the encoding parameters that meet the fixed bandwidth transmission.

[0083] When the feedback value of the H221 framing unit and the feedback value of the sending buffer unit satisfy the quality of the audio encoding, the encoder control unit sends new parameters to the audio encoder, and sends the H221 frame data to the H221 framing unit. Data max.

[0084] When the feedback value of the H221 framing unit and the feedback value of the sending buffer unit meet the requirements for reducing the audio coding quality, the audio coding quality is reduced, and the encoder control unit sends new coding parameters to the audio encoder, and sends H221 frame data to the H221 framing unit Audio data max value and video data max value.

[0085] Therefore, dynamically adjust the audio encodi...

Embodiment 3

[0087] In this embodiment, audio is coded with fixed parameters, and video is coded with dynamic parameters.

[0088] At the beginning, the audio and video encoding parameters are sent according to the encoding parameters that meet the fixed bandwidth transmission.

[0089] When the feedback value of the H221 framing unit and the feedback value of the sending buffer unit meet the video encoding quality improvement, the encoder control unit sends new parameters to the video encoder, and sends the H221 frame data maximum video data and audio to the H221 framing unit Data max.

[0090] When the feedback value of the H221 framing unit and the feedback value of the sending buffer unit meet the requirement of reducing the video coding quality, the video coding quality is reduced, the encoder control unit sends new coding parameters to the video encoder, and sends the H221 frame data to the H221 framing unit Video data maximum value and audio data maximum value.

[0091] Therefore,...

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Abstract

The invention discloses a dynamic audio and video encoding transmission method, system, device and storage medium, comprising the following steps: sending current audio / video encoding parameters, and generating corresponding audio / video data in the H221 frame structure according to the current audio / video encoding parameters Maximum value; acquire and save audio / video data, generate current audio / video buffer data volume according to audio / video data; perform H221 framing processing on audio / video data, and generate current audio / video framing data value and current empty packet data Value; adjust the quality of the audio / video encoding parameters according to the size of the current audio / video buffer data, the current audio / video framing data value and the current empty packet data value. The present invention can solve the problem of low utilization rate of dedicated line channel bandwidth in view of the characteristics of audio and video encoding rate change and fixed bandwidth, improve the bandwidth utilization rate of audio and video data in the transmission of dedicated line channel, and further improve the effect of audio and video communication.

Description

technical field [0001] The present invention relates to the field of dedicated line transmission, and relates to a dynamic audio and video encoding transmission method, system, device and storage medium, and in particular to a dynamic audio and video encoding transmission method, system, device and storage medium for a dedicated line video conference. Background technique [0002] With the development of audio and video coding technology, wideband audio coding supports coding at different rates; the coding rate of video capabilities such as H.264 and H.265 video is not fixed, which is related to the video format, frame rate and the type of the current coded frame, related to image scenes, etc. [0003] For dedicated line video conferencing communication, since audio and video data are transmitted in fixed time slots, even if the audio and video encoding rate can be changed, the corresponding time slot of the audio and video channel is fixed, and the maximum encoding rate of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/15H04N21/2662H04N21/2343H04N21/231H04N21/233
CPCH04N7/15H04N21/2662H04N21/2343H04N21/23106H04N21/233
Inventor 杨阳
Owner 深圳市融讯视通科技有限公司
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