Image sharing method based on Miracast, source device, terminal device and system

A technology of terminal equipment and source equipment, applied in the field of image transmission, can solve the problems of unsmooth delay, insufficient memory bandwidth, insufficient transmission bandwidth, etc., and achieve the effect of reducing bandwidth and avoiding insufficient memory bandwidth

Active Publication Date: 2014-08-27
FUZHOU ROCKCHIP SEMICON
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a Miracast-based image sharing method, source equipment, terminal equipment and system to solve the delay and unsmooth problems in the Miracast image transmission process when the transmission bandwidth is insufficient or the memory bandwidth is insufficient. question

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  • Image sharing method based on Miracast, source device, terminal device and system
  • Image sharing method based on Miracast, source device, terminal device and system

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[0045] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0046] see figure 1 as well as figure 2 , the present invention provides a Miracast-based image sharing method, which can be applied between a Miracast-based source device and a terminal device, and includes the following steps: Step S101 When the source device synthesizes the next frame layer, it sends the synthesized next frame The material identification of the material required by the layer to the terminal device. In the existing Miracast-based image transmission process, the first step is the image synthesis step of the source device, that is, when the source device wants to display the next frame of data, it first synthesizes the materials and original layers required for the next frame (the previously displayed screen image) Laye...

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Abstract

The invention provides an image sharing method based on Miracast, a source device, a terminal device and a system. The method includes the steps that when a next-frame image layer is synthesized by the source device, material identification of materials needed for synthesizing the next-frame image layer is sent to the terminal device, and the terminal device detects whether the material identification is stored in the terminal device or not; if the material identification is stored in the terminal device, materials corresponding to the material identification and an original image layer are synthesized into a new image layer; if the material identification is not stored in the terminal device, prompting information is sent to the source device, the source device sends the materials corresponding to the material identification to the terminal device after receiving the prompting information, and the terminal device stores the materials and synthesizes the materials and an original image layer into a new image layer after receiving the materials. Due to the image sharing method based on Miracast, the source device, the terminal device and the system, the amount of data read by the source device from image layer information is reduced, consumption of internal storage and transmission bandwidth is reduced, and the situation that images are not fluent or smooth because of lack of internal storage or transmission bandwidth is avoided.

Description

technical field [0001] The invention relates to the field of image transmission, in particular to a Miracast-based image sharing method, source device, terminal device and system. Background technique [0002] Currently, Miracast technology is becoming more and more popular, and industry analysts predict that the annual output of Miracast-certified devices will exceed 1 billion units in the next four years. Miracast technology is an image sharing technology based on WIFI Direct technology. The principle is to use the p2p network connection established by WIFI Direct to transmit display frame buffer data from time to time. Devices based on Miracast technology provide simplified discovery and setup, and users can quickly transfer images between devices. In the Miracast system, the device that delivers images is called a source device (source device), and the device that is delivered is called a terminal device (sink device). The limitation of Miracast display effect is mainl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/4363H04N21/4402
Inventor 林涛
Owner FUZHOU ROCKCHIP SEMICON
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