A method and an apparatus for stream conversion, a method...

Details A method and an apparatus for stream conversion, a method... A method and an apparatus for stream conversion, a method...

H - Electricity

04

N

H04N 21/434 (2011.01) G11B 20/10 (2006.01) G11B 27/10 (2006.01) H04N 7/01 (2006.01) H04N 7/24 (2011.01)

Patent

CA 2439467

For encoding externally input AV signal to MPEG-TS that enables quickly conversion from MPEG-TS to MPEG-PS, data unit (Multiplexing Unit) is defined which includes a plurality of packet and has data size corresponding to data amount of one pack in MPEG-PS, and MPEG-TS is encoded for each defined data unit. Furthermore, time stamp information (ATS) added to a packet of MPEG-TS which is converted to MPEG-TS and time stamp information (SCR) added to a packet of the converted MPEG-PS are correlated with a predetermined formula.

Afin de coder un signal AV (audio vidéo) provenant de l'extérieur en MPEG-TS qui permet une conversion rapide de MPEG-TS en MPEG-PS, une unité de données (unité de multiplexage) est définie et comprend une pluralité de paquets et présente une taille de données correspondant à la quantité de données d'un paquet dans MPEG-PS, et MPEG-TS est codé pour chaque unité de données définie. De plus, les informations d'horodatage (ATS) ajoutées dans un paquet de MPEG-TS qui est converti en MEPG-PS et des informations d'horodatage (SCR) ajoutées dans un paquet du MPEG-PS converti sont corrélées au moyen d'une formule prédéterminée.

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