Opened 5 years ago

Closed 4 years ago

#755 closed defect (fixed)

sw-spec mismatch of sps_ptl_dpb_hrd_params_present_flag and sps_reserved_zero_Xbits

Reported by: biaowang Owned by:
Priority: minor Milestone:
Component: VTM Version: VTM-7.0
Keywords: Cc: ksuehring, XiangLi, fbossen, jvet@…


at the beginning of SPS syntax table,
In latest spec (Q0041)

sps_max_sublayers_minus1 u(3)
sps_reserved_zero_4bits u(4)
sps_ptl_dpb_hrd_params_present_flag u(1)
if( sps_ptl_dpb_hrd_params_present_flag )

profile_tier_level( 1, sps_max_sublayers_minus1 )

However, in latest commit of VTM (65e585026d) parseSPS()
the parsing syntax corresponding to the follows

sps_max_sub_layers_minus1 u(3)
sps_reserved_zero_5bits u(5)
profile_tier_level( ptl, sps_max_sub_layers_minus1 )

VTM has
sps_reserved_zero_5bit instead of sps_reserved_zero_4bit.
no parsing for syntax sps_ptl_dpb_hrd_params_present_flag,
and the invocation of profile_tier_level() is unconditional.

Change history (2)

comment:1 Changed 4 years ago by ksuehring

  • Milestone VTM-7.1 deleted

comment:2 Changed 4 years ago by fbossen

  • Resolution set to fixed
  • Status changed from new to closed

This appears to be fixed.

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