A method for synchronously playing multiple channels of audio and video in network transmission
A multi-channel audio and video, synchronous playback technology, applied in the field of audio and video processing, can solve the problems that cannot meet the requirements of multi-channel audio and video synchronization, and it is difficult to ensure synchronous playback, etc., to achieve the effect of compensating for delay fluctuations and consistent playback progress
Active Publication Date: 2022-05-17
北京凯视达信息技术有限公司
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Problems solved by technology
This method can only work in the case of one audio and one video, and it cannot work normally in the case of multiple audio and video, and cannot meet the requirements of multi-person communication applications such as video conferencing for simultaneous synchronization of multiple audio and video ; At the same time, after multi-channel audio and video are played synchronously, if one or more channels are interrupted, it is difficult to ensure synchronous playback
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[0018] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0019] Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art w...
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The invention relates to a method for synchronously playing multi-channel audio and video in network transmission, including identifying the channel through IP before the audio and video server stream distribution, and performing clock calibration and signal delay detection on the receiving end connected to the channel to ensure audio and video During stream distribution, the video server can delay the transmission of channels with smaller delays according to the delay of each channel, so as to ensure that each receiving end can obtain audio and video clips at the same time, and the timestamp in the audio and video clips makes the audio and video When the clip is playing, it can continuously feed back the clock to the audio and video server, thereby dynamically compensating for the delay fluctuation of the channel, and further ensuring that the audio and video server sends subsequent audio and video clips. The subsequent playback progress of each receiver is consistent.
Description
technical field [0001] The invention relates to the technical field of audio and video processing, in particular to a method for synchronously playing multiple channels of audio and video in network transmission. Background technique [0002] With the rapid development of today's Internet broadband technology and multimedia information technology, network multimedia applications have become an important content of Internet applications. Especially in webcast teaching or online class teaching, since it involves the interaction between multiple people, it is necessary to play multiple channels of audio and video at the same time. At this time, each channel of audio and video needs to be synchronized, otherwise the smooth communication will be affected. However, due to the delay of the channel, the time for each signal receiving terminal to receive the audio and video signals is always different. The traditional audio and video synchronization technology is to mark each audio ...
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IPC IPC(8): H04N21/43H04N21/437H04N21/8547
CPCH04N21/4307H04N21/437H04N21/8547
Inventor 刘政伟龙图景
Owner 北京凯视达信息技术有限公司