| 摘要 |
FIELD: physics, communications. ^ SUBSTANCE: invention relates to communication systems and particularly to controlling extended media and using random access points in a secondary stream associated with a primary stream of extended media packets. The secondary stream (20) of extended media packets (21, 22, 23), which determines the state of the scene of the part (34) of the scene (30) represented by the primary stream (10) or extended media packets (11, 12, 13). Local random access data are provided, which determine instructions for allowance to be processed, and the initial state of part of the scene (34) is created without affecting the state of the scene of parts (32, 36) of the scene. Local random access data are packed in at least one extended media packet (21, 23), which is inserted into the secondary stream (20) and transmitted to at least one user terminal (300). Local random access data can be used by terminals (300) for adjustment at the secondary stream (20) and/or for reconstruction in case of errors associated with the secondary stream (20). ^ EFFECT: enabling control of extended media packets, which enables reconstruction in case of errors and/or possibility of adjustment in a secondary or auxiliary stream of extended media packets. ^ 29 cl, 13 dwg |
