Method and system for transmitting encoded and decoded data among processors, and visual telephone

Abstract

The invention is applied in the technical field of mobile communication, and provides a method and a system for transmitting encoded and decoded data among processors, and a visual telephone. The method comprises the following steps that: when a decoded data writing engine detects that a data frame subjected to software decoding by a protocol stack is a first data frame, the decoding setting of a coprocessor is configured and a decoding thread of an application processor is started; the decoding thread of the application processor transmits the data frame subjected to the software decoding by the protocol stack to the coprocessor; the coprocessor performs hardware decoding on the data frame, and displays decoded video call data on a display screen; the coprocessor performs hardware encoding on the video call data shot by a camera; the coprocessor transmits the encoded data to the application processor; and an encoding thread of the application processor transmits the encoded data to the protocol stack for software encoding and transmits the encoded data to an air interface through a communication protocol stack. Through the method, the transmission of the encoded and decoded data can be more securely and reliably realized in the video call process.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, and in particular relates to a method and system for transmitting encoded and decoded data between processors and a videophone. Background technique [0002] With the development of communication technology, we have entered the era of 3G and 4G. In mobile communication, a very important service is videophone. In videophone calls, the smoothness and clarity of video is directly related to user experience , The smooth and clear video is guaranteed by the reliable transmission of video stream data. The transmission of codec data of video data is a very important part, which is related to the stability of the system and the direct experience of users. [0003] However, the existing codec data transmission of video data puts the processing flow and the control flow together without separate processing, which makes the processing logic more complicated and affects the efficiency of data tr...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a method for transmitting codec data between processors, which aims to solve the problem that the transmission method of video data codec data provided by the prior art is not efficient, and the data is prone to frame loss and overflow, which will cause Problems causing mosaic phenomenon and image distortion

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