An AV1 Access Unit consists of all OBUs, including headers, between the end of the last OBU associated with the previous frame, and the end of the last OBU associated with the current frame. With this definition, an Access Unit sometimes maps with a Decodable Frame Group (DFG) as defined in [] and some other times to a Temporal Unit (TU) as defined in [], or both, as illustrated in the figure below.
An AV1 Access Unit consists of all OBUs, including headers, between the end of the last OBU associated with the previous frame, and the end of the last OBU associated with the current frame. With this definition, an Access Unit sometimes maps with a Decodable Frame Group (DFG) as defined in [] and some other times to a Temporal Unit (TU) as defined in [], or both, as illustrated in the figure below.
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