Audio/video synchronization and anti-shaking method of transport stream
A technology of audio and video synchronization and transport streaming, which is applied in digital video signal modification, image communication, selective content distribution, etc.
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[0041] The present invention sets the program clock reference obtained for the first time as the reference time during the analysis process of the transport stream, and can adjust the reference time when the network jitters, and use the reference time to calculate the effective time of audio and video. Timestamp, so as to realize the synchronization of audio and video, and improve the reliability of network transmission.
[0042] Since the audio, video and PSI (Program Specifically Information, program specific information) data of each program in the transport stream (Transport Stream, TS stream) are transmitted independently; therefore, in the process of multiplexing and demultiplexing of the transport stream , it is necessary to add specific information to represent when any part of each program is presented; that is, to add a certain time information in real time when multiplexing, and then present the audio and video content according to the time information when demultipl...
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