Merging of multiple encoded audio-video streams into one...

H - Electricity – 04 – N

Patent

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H04N 21/2368 (2011.01) H04N 21/434 (2011.01)

Patent

CA 2606339

A system and method for merging of multiple encoded audio and video streams into a single program in the transport stream enables playback of any audio stream with any video stream. This is accomplished by first locking the frequency of audio and video input streams for a plurality of different programs to a source clock, independently encoding each program with its own PCR and PTS into a program stream, multiplexing the program streams into a transport stream, and then synchronizing the PCR and PTS of the program streams to a declared master PCR.

Système et procédé de fusion e séquences audio et vidéo codées multiples en un programme unique dans le flux de transport, qui permet de lire n'importe quelle séquence audio avec n'importe quelle séquence vidéo. A cette fin, on cale la fréquence des séquences d'entrée audio et vidéo sur une horloge mère, en codant indépendamment chaque programme avec son propre PCR (référence d'horloge du programme) et PTS (estampille de présentation) dans une séquence de programme, en multiplexant ses séquences de programme dans un flux de transport, puis en synchronisant le PCR et le PTS des séquences de programme par rapport à un PCR principal déclaré.

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