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IOS remote real machine WEB end real-time control echo method based on H264 code stream

A remote real machine, H264 technology, applied in the direction of advanced technology, sustainable communication technology, electrical components, etc., can solve the problems of not suitable for large-scale centralized use, high bandwidth requirements, etc., to reduce the amount of transmitted data, reduce resource consumption, The effect of transfer rate control

Pending Publication Date: 2022-01-25
上海赛可出行科技服务有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because of the high-resolution images and high-performance screenshot capabilities of IOS, the quality of real-time images can be guaranteed, but this solution requires high bandwidth and is not suitable for large-scale centralized use, especially when the bandwidth is limited. The situation is very clear; existing programs such as image 3 shown

Method used

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  • IOS remote real machine WEB end real-time control echo method based on H264 code stream
  • IOS remote real machine WEB end real-time control echo method based on H264 code stream
  • IOS remote real machine WEB end real-time control echo method based on H264 code stream

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Embodiment 1

[0017] Such as Figure 1-3 , the present invention provides a real-time IOS remote real machine WEB end control echo method based on H264 code stream, comprising the following steps:

[0018] 1). Use the built-in screenshot and hardware encoding method of the IOS system to compile the picture into a video stream in H264 format in real time, and transmit it through the TCP / IP protocol. The H264 stream will form an I frame (IDR frame is a key frame) according to the image change characteristics P frame and B frame, the core algorithm adopted by I frame is intra-frame compression to store a complete image information, P frame and B frame adopt inter-frame compression to store the correlation data of several connected frames;

[0019] 2). On the WEB side, the received video stream in H264 format is parsed into pictures in real time;

[0020] 3). Finally, draw the image information on the WEB to form an operable smooth and dynamic image flow.

[0021] Furthermore, this method cha...

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Abstract

The invention discloses an IOS remote real machine WEB end real-time control echo method based on an H264 code stream, which comprises the following steps of: compiling a picture into a video stream in an H264 format in real time by using a built-in screenshot and hardware coding mode of an IOS system, transmitting through a TCP / IP, and enabling the H264 code stream to form an I frame (an IDR frame, namely a key frame), a P frame and a B frame according to image change characteristics, wherein the core algorithm adopted by the I frame is that complete image information is stored in intra-frame compression, and the P frame and the B frame adopt inter-frame compression and store correlation data of several connected frames. According to the invention, the H264 difference frame technology is ingeniously utilized, the transmission bandwidth pressure is greatly reduced (more than 2 / 3 of the transmission bandwidth pressure is saved), the IOS picture is hard-programmed into the video stream, and the transmission rate is stably controlled while the transmission data volume is reduced by ingeniously utilizing the H264 difference frame technology; the H264 video stream is analyzed into the picture stream at the WEB end, so that the resource consumption of centralized decoding of the server is reduced, and the fluency of remote control is improved.

Description

technical field [0001] The invention relates to the field of test management, in particular to an IOS remote real machine WEB terminal real-time control echo method based on H264 code stream. Background technique [0002] IOS remote real machine image display currently mostly adopts the screenshot interface that comes with the IOS system, takes screenshots at a frequency of no less than 60 times per second, and transmits the image stream to the WEB terminal with TCP / IP or HTTP protocol, and renders it in real time and displays it on Canvas , for gestures and swipes. Because of the high-resolution images and high-performance screenshot capabilities of IOS, the quality of real-time images can be guaranteed, but this solution requires high bandwidth and is not suitable for large-scale centralized use, especially when the bandwidth is limited. The situation is very clear; existing programs such as image 3 shown. Contents of the invention [0003] The technical problem to be...

Claims

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Application Information

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IPC IPC(8): H04N19/159H04N19/177H04N19/42H04L65/65H04L65/60
CPCH04N19/159H04N19/177H04N19/42Y02D30/50
Inventor 陈亮
Owner 上海赛可出行科技服务有限公司
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