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Real-time communication protocol coding method for dynamic image data

A technology of real-time communication and image data, applied in image communication, digital video signal modification, television and other directions, can solve problems such as low system performance, and achieve the effect of reducing system resources

Inactive Publication Date: 2006-08-02
LG ELECTRONIC (HUIZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For RTP encoding, when using 'memcpy()' to copy these in real time, due to the defect of CPU resources, the overall system performance is low.

Method used

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  • Real-time communication protocol coding method for dynamic image data
  • Real-time communication protocol coding method for dynamic image data
  • Real-time communication protocol coding method for dynamic image data

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Embodiment Construction

[0018] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] FIG. 3 is an example diagram of a memory map for explaining the RTP encoding method of the present invention. As shown in Figure 3, the data compressed in the form of MPEG in the wireless image transmission device is temporarily stored in the internal memory (ring buffer, 100), and according to the data transmission rate, the image of a certain size (such as: 8KB) to be transmitted for the first time Data (data 0), in the same way as the existing method, is copied to other buffers and then RTP encoded.

[0020] That is, since the image data (data 0) transmitted for the first time does not have a memory space capable of covering the RTP header, the RTP header is filled in the temporary buffer in the conventional manner, and then the image data is filled again, and RTP encoding is performed.

[0021] As described above, if the first image data (dat...

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Abstract

A coding method of real time communication protocol for active image data includes judging whether compression image data to be transmitted by radio image transmission device is belonged to the first data of internal memory storing compression image data or not, filling real time transmission protocol head on buffer and copying compression image data then running RTP coding if it is or otherwise covering next real time transmission protocol head to transmit data by internal memory domain being used to transmitted the data before then running RTP coding .

Description

【Technical field】 [0001] The present invention is an invention related to the encoding method of real-time communication protocol for moving image data, especially for converting TV and external image signals into digital signals such as MPEG and transmitting them through wireless network, so that it can reduce the time required for RTP encoding its image data. Inventions related to the real-time communication protocol encoding method of moving image data of system resources. 【Background technique】 [0002] In general, wireless TV equipment is a UP Scan Converter (UP Scan Converter) of a TV tuner that can receive TV reception signals and external image signals as input, convert them into digital signals such as MPEG, and transmit them over a wireless network. Without a computer host, you can only use a network-connectable display (such as a smart display) to view and listen to external image signals such as TV and cable TV. [0003] The wireless TV equipment developed now r...

Claims

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Application Information

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IPC IPC(8): H04N7/26H04L29/06H04N19/426
Inventor 权纯铉
Owner LG ELECTRONIC (HUIZHOU) CO LTD