Program source switch method and stream media play system

Abstract

The invention discloses a method for switching program source in stream media playing which includes: a program source switching command for switching a current first program source to a target second program source is transmitted to a stream media playing system; after receiving the program source switching command, the stream media playing system continues to collect and play stream media data of the first program source and starts to collect stream media data of the second program source; after effective data of the second program source is obtained, the collection of the stream media dataof the first program source is stopped; at the same time, the stream media data of the second program source is started to play, and the switching from the first program source to the second program source is realized. The invention also discloses a related stream media playing system. By adopting the invention, period without any blank screen is realized during program source switching; besides,when the program source code rate is different after switching, a second encoding process is carried out for the stream media data, and a receiving terminal is not required to be notified to conduct code rate change.

Description

technical field [0001] The invention relates to streaming media playback, in particular to a program source switching method and a corresponding streaming media playback system. Background technique [0002] Network streaming media playback is a newly developed technology, especially P2P (Peer To Peer) streaming media technology, which can transmit audio and video programs in real time through the Internet. During the broadcasting of the program, other audio and video media streams such as advertisements, clips and other audio and video media streams can be inserted according to the needs of sponsors, so as to realize switching of program sources. [0003] In the prior art, when it is necessary to switch program sources, directly switch from the currently playing program source to the target program source, and when the bit rates of the two program sources are different, notify the receiving end to modify the bit rate setting of the local player to Adapt to bit rate changes...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a program source switching method and a streaming media playback system to solve the problem in the prior art that the black screen time is longer when program source switching is performed; and when the program source code rates before and after switching are different, additional Informing the receiving end to perform code rate conversion leads to the problem of increasing network traffic overhead

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