AUDIO ENCODER AND DECODER WITH PROGRAM INFORMATION OR SUBSTREAM STRUCTURE METADATA

摘要

Apparatus and methods for generating an encoded audio bitstream, including by including substream structure metadata (SSM) and/or program information metadata (PIM) and audio data in the bitstream. Other aspects are apparatus and methods for decoding such a bitstream, and an audio processing unit (e.g., an encoder, decoder, or post-processor) configured (e.g., programmed) to perform any embodiment of the method or which includes a buffer memory which stores at least one frame of an audio bitstream generated in accordance with any embodiment of the method.

主权项

1. An audio processing unit, including:
a buffer memory; and at least one processing subsystem coupled to the buffer memory, wherein the buffer memory stores at least one frame of an encoded audio bitstream, said frame including program information metadata or substream structure metadata in at least one metadata segment of at least one skip field of the frame and audio data in at least one other segment of the frame, wherein the processing subsystem is coupled and configured to perform at least one of generation of the bitstream, decoding of the bitstream, or adaptive processing of audio data of the bitstream using metadata of the bitstream, or at least one of authentication or validation of at least one of audio data or metadata of the bitstream using metadata of the bitstream, wherein the metadata segment includes at least one metadata payload, said metadata payload comprising: a header; and after the header, at least some of the program information metadata or at least some of the substream structure metadata.