A method of operation of a video coding system includes: receiving a video bitstream as a serial bitstream; extracting a video syntax from the video bitstream; extracting a low delay flag, a network abstraction layer (NAL) hypothetical reference decode (HRD) parameters present flag, and a video coding layer (VCL) HRD parameters present flag from the video syntax extracting a HRD syntax from the video bitstream based on the low delay flag, the NAL HRD parameters present flag, and the VCL HRD parameters present flag; extracting a temporal layer from the video bitstream based on the video syntax having the HRD syntax; and forming a video stream based on the temporal layer for displaying on a device.
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