Indication of end of sequence in coded video

An apparatus for processing video data comprising a processor and a non-transitory memory with instructions thereon, wherein the instructions upon execution by the processor, cause the processor to:

• perform a conversion between a video and a bitstream of the video according to a first format rule,
• wherein the bitstream comprises one or more layers comprising one or more picture units (PUs), and
• wherein the first format rule specifies that, responsive to a first PU in a layer of the bitstream following an end of sequence network abstraction layer (EOS NAL) unit in the layer in a decoding order, a variable of the first PU is set to a particular value, wherein the variable indicates whether the first PU is a coded layer video sequence start (CLVSS) PU;
• wherein the first PU is a clean random access PU, and another variable of the clean random access PU is set to indicate that the clean random access PU is handled as the CLVSS PU.

A non-transitory computer-readable storage medium storing instructions that cause a processor to:

• perform a conversion between a video and a bitstream of the video according to a first format rule,
• wherein the bitstream comprises one or more layers comprising one or more picture units (PUs),
• wherein the first format rule specifies that, responsive to a first PU in a layer of the bitstream following an end of sequence network abstraction layer (EOS NAL) unit in the layer in a decoding order, a variable of the first PU is set to a particular value, wherein the variable indicates whether the first PU is a coded layer video sequence start (CLVSS) PU;
• wherein the first PU is a clean random access PU, and another variable of the clean random access PU is set to indicate that the clean random access PU is handled as the CLVSS PU.

A non-transitory computer-readable recording medium storing a bitstream of a video which is generated by a method performed by a video processing apparatus, wherein the method comprises:

• generating the bitstream of the video according to a first format rule,
• wherein the bitstream comprises one or more layers comprising one or more picture units (PUs), and
• wherein the first format rule specifies that, responsive to a first PU in a layer of the bitstream following an end of sequence network abstraction layer (EOS NAL) unit in the layer in a decoding order, a variable of the first PU is set to a particular value, wherein the variable indicates whether the first PU is a coded layer video sequence start (CLVSS) PU;
• wherein the first PU is a clean random access PU, and another variable of the clean random access PU is set to indicate that the clean random access PU is handled as the CLVSS PU.