Method for playing back audio/video of network stream media synchronously

Abstract

The technical solution provided is to add an audio / video buffer and set an audio / video timer into the currently-used IP stream media displaying device in order to control the display of audio / video data in the buffer and to improve the synchronizing precision between audio and video signal.

Description

technical field [0001] The invention relates to an IP network technology, in particular to an IP network stream media audio and video synchronization technology. Background technique [0002] With the development of 3C integration of home appliances, communications, and consumer electronics, streaming media playback systems based on IP networks have gradually become a hot topic. In IP network streaming media playback technology, how to correctly restore the time relationship between audio and video at the receiving end, that is, to realize synchronous playback of audio and video, has become one of the key technologies. [0003] In the prior art, after the terminal starts to play streaming media (on-demand or multicast), it begins to continuously receive media data packets from the network. The processing flow at this time is as follows (taking the media video as mpeg4 and audio as mp3 as an example): [0004] (1) First judge the media type by RTP Payload (RTP load), and kn...

AI Technical Summary

Problems solved by technology

[0008] Due to the complex factors of IP network transmission data, the audio and video synchronization accuracy is uncertain in the above streaming media playback process, the random error is large, and the synchronization effect is not satisfactory.

[0009] However, existing audio and video synchronization related technologies are mainly limited to stand-alone playback systems, and are not suitable for multimedia playback systems in network environments.

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