Support of multimodal extraction for multi layer video codec

摘要

The computing device can obtain a supplemental enhancement information (SEI) message that includes an indication of the extraction mode used to produce the first bitstream from the first bitstream that includes the coded representation of the video data. . If the extraction mode is the first extraction mode, the first bitstream includes one or more coded pictures that are not required for correct decoding of the target output layer set. If the extraction mode is the second extraction mode, the first bitstream does not include one or more coded pictures that are not required for correct decoding of the target output layer set.