An Access Point Sector, APS, is an MPEG video sector on the VCD/ SVCD which is suitable to be jumped to directly. APS are required for entry points and scantables. APS have to fulfil the requirement to precede every I-frame by a GOP header which shall be preceded by a sequence header in its turn. The start codes of these 3 items are required to be contained all in the same MPEG pack/ sector, thus forming a so-called access point sector. This requirement can be relaxed by enabling the relaxed aps option, i. e. every sector containing an I-frame will be regarded as an APS. Warning: The sequence header is needed for a playing device to figure out display parameters, such as display resolution and frame rate, relaxing the aps requirement may lead to non-working entry points.
Sarbide- puntuko sektorea, APS, VCD/ SVCDko MPEG bideo- sektorea da eta hara zuzenean saltatu daiteke. APSak beharrezkoak dira sarrera- puntuetarako eta eskaneatze- tauletarako. APSek I- frame bakoitzaren aurrean GOP goiburu bat jarri behar dute, eta goiburu horren aurrean sekuentzia- goiburu bat joango da. 3 elementu horien hasiera- kodeek mpeg pakete/ sektore berean egon behar dute, sarbide- puntuko sektorea deitzen dena osatuz. Eskakizun hori arindu daiteke APS malguaren aukera gaituz, adibidez, I- frame bat duen sektore oro APStzat joko da. Oharra: Erreproduzigailu batek sekuentzia- goiburua behar du bistaratze- parametroak kalkulatzeko; adibidez, bistaratze- bereizmena eta fotograma- emaria. APSren eskakizunak arinduz gero, funtzionatzen ez duten sarrera- puntuak egon daitezke.