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Method for synchronously playing audio and video streaming media in wireless environment

A wireless environment, synchronous playback technology, applied in the direction of pulse modulation TV signal transmission, electrical components, transmission systems, etc., can solve the problem of synchronous playback of audio streaming media without consideration

Inactive Publication Date: 2011-02-02
陕西赛瑞德科技发展有限责任公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the existing technologies all propose corresponding methods for synchronous playback within video streaming media in a wireless environment, without considering synchronous playback within audio streaming media and between audio and video streaming media

Method used

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  • Method for synchronously playing audio and video streaming media in wireless environment
  • Method for synchronously playing audio and video streaming media in wireless environment
  • Method for synchronously playing audio and video streaming media in wireless environment

Examples

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Embodiment Construction

[0048] figure 1 Schematic diagram for wireless streaming applications. Among the figure, content provider 10 transmits audio and video stream media data to flow server 11, and flow server 11 is connected to base station 15 by Internet 12, packet data exchange 13 and base station controller 14, is wireless between base station 15 and wireless terminal 17 Channel 16 uses wireless transmission.

[0049] Audio and video streaming media data is divided into audio grouping and video grouping, these two groups need to pass through Internet 12 and wireless channel 16 between content provider 10 and wireless terminal 17, and the transmission time delay of each grouping is different and bigger, like this It is impossible for the packets to arrive at the wireless terminal 17 in the order of sending, resulting in inability to decode and play in time, resulting in out-of-sync playback. In the wireless environment, the present invention uses the synchronous playback method of audio and vi...

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Abstract

The invention relates to a method for synchronously playing audio and video streaming media in a wireless environment. The method comprises the following steps of: respectively regulating an audio frame size and a video playing frame rate to achieve internal synchronization of audio streaming media and the internal synchronization of video streaming media according to an occupation level of a buffer area; and on the basis of the internal synchronization of the audio and video streaming media, comparing time tags of an audio unit and a video unit to regulate the video playing frame rate to achieve the synchronization between the audio streaming media and the video streaming media. The invention has the advantages of not only providing a method for the internal synchronization of the video streaming media but also providing a method for the internal synchronization of the audio streaming media and a method for the internal synchronization between the audio and video streaming media in the wireless environment, and realizing synchronous playing of the audio and video streaming media in the wireless environment.

Description

technical field [0001] The invention belongs to the application field of streaming media, and in particular relates to a method for synchronously playing audio and video streaming media in a wireless environment. Background technique [0002] The third generation wireless communication technology has been developed for a long time. The high data throughput of third-generation networks enables data applications such as web browsing, online games, email, file downloads, and streaming media. Among these applications, streaming media applications have high requirements in terms of transmission bandwidth and delay. Since streaming media packets have different transmission delays in channels, in order to ensure service quality, media synchronization control is required to ensure that media streams can be played synchronously at the terminal. [0003] Streaming media synchronization includes intra-streaming synchronization and inter-streaming synchronization. Intra-streaming syn...

Claims

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Application Information

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IPC IPC(8): H04N7/24H04L29/06
Inventor 高强
Owner 陕西赛瑞德科技发展有限责任公司
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