Method for signaling virtual boundary signaling with subpictures in coded video stream
摘要
說明書
In an embodiment, a PPS (RBSP) may be available to the decoding process prior to it being referenced, included in at least one AU with TemporalId equal to the TemporalId of the PPS NAL unit in the CVS, which contains one or more PHs (or coded slice NAL units) referring to the PPS, or provided through external means.
In an embodiment, a PPS (RBSP) may be available to the decoding process prior to it being referenced by one or more PHs (or coded slice NAL units), included in at least one PU with nuh_layer_id equal to the lowest nuh_layer_id value of the coded slice NAL units that refer to the PPS NAL unit in the CVS, which contains one or more PHs (or coded slice NAL units) referring to the PPS, or provided through external means.
In an embodiment, a PPS (RBSP) may be available to the decoding process prior to it being referenced by one or more PHs (or coded slice NAL units), included in at least one PU with TemporalId equal to the TemporalId of the PPS NAL unit and nuh_layer_id equal to the lowest nuh_layer_id value of the coded slice NAL units that refer to the PPS NAL unit in the CVS, which contains one or more PHs (or coded slice NAL units) referring to the PPS, or provided through external means.
In the same or another embodiment, ph_pic_parameter_set_id in PH specifies the value of pps_pic_parameter_set_id for the referenced PPS in use. The value of pps_seq_parameter_set_id may be the same in all PPSs that are referred to by coded pictures in a CLVS.
In the same or another embodiment, All PPS NAL units with a particular value of pps_pic_parameter_set_id within a PU shall have the same content.
In the same or another embodiment, regardless of the nuh_layer_id values, PPS NAL units may share the same value space of pps_pic_parameter_set_id.
