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Method and system for video synchronization

A video synchronization and video technology, applied in the field of communication, can solve the problems of out-of-sync video display and weak terminal decoding ability, and achieve the effect of ensuring smooth video, synchronous display of video, and small capacity

Inactive Publication Date: 2014-09-10
SHENZHEN JIUZHOU ELECTRIC
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Problems solved by technology

[0004] In view of this, it is necessary to provide a video synchronization method for the above-mentioned problem that the weak decoding ability of the terminal causes the video display to be seriously out of sync.

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  • Method and system for video synchronization

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0020] figure 1 is a flowchart of the video synchronization method in one embodiment. Such as figure 1 As shown, the method includes the following steps:

[0021] S10: Encode the original video stream in MPEG2 format into an original video stream in H264 format.

[0022] Because the MPEG2 format data capacity is very large, if the audio-video terminal (preferably a set-top box) sends the video transport stream of the MPEG2 format to the terminal, the terminal will not be able to decode the transport stream well because of the weak decoding ability of the decoder, which will cause Issue with vid...

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Abstract

The invention relates to a method and a system for video synchronization. The method comprises the steps of coding an original video stream of MPEG2 (Moving Picture Experts Group 2) format having large data capacity into an original video stream of H264 format which is higher in compression ratio, lower in capacity and more convenient for wireless network transmission, dividing each data frame of the original video stream of H264 format into a plurality of smaller data pieces, and then packaging the data pieces into a plurality of TS (Transport Stream) packets and then transmitting the TS packets to a terminal, and immediately carrying out decoding and displaying by the terminal after all TS packets of one data piece are received. The method is characterized in that the decoding and displaying are carried out one data piece after one data piece, rather than one frame after one frame, in this way, the cases of concentrated transmission and concentrated decoding of a whole frame of data at one time point are avoided, the network transmission stress is relieved, meanwhile, the decoding stress of a terminal decoder is also relieved so that the terminal can well perform decoding and displaying, and smooth video and synchronous video display are greatly guaranteed, and therefore, a user can watch and use the video very conveniently.

Description

technical field [0001] The invention relates to the communication field, in particular to a video synchronization method and system. Background technique [0002] In recent years, with the rise of mobile Internet technology, the multi-screen interactive technology built by audio and video terminals such as set-top boxes and mobile terminals has developed rapidly. [0003] When performing multi-screen interaction, the set-top box directly transmits the video transmission stream (MPEG2 format) to the decoder of the terminal through a wired network, wireless network or other transmission methods for decoding and display. However, the transport stream in MPEG2 format directly transmitted from the set-top box has a large data capacity, requires a high transmission bandwidth, and also requires a strong decoding capability of the terminal. And many terminals such as mobile phones, pads and other devices, most of these terminals do not support hardware decoding of MPEG2 format vide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/4402H04N21/845H04N21/43
Inventor 蔡汉锋
Owner SHENZHEN JIUZHOU ELECTRIC
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