Bitstream file name:
SUBPIC_C_HUAWEI_1.bit

Explanation of bitstream features:
Subpicture ID signalling. The following subpicture settings are used:
SubPicInfoPresentFlag                   : 1             
NumSubPics                              : 5             
SubPicCtuTopLeftX                       : 0 3 0 11 11   
SubPicCtuTopLeftY                       : 0 0 6 0 6     
SubPicWidth                             : 3 8 11 4 4    
SubPicHeight                            : 6 6 3 6 3    
SubPicTreatedAsPicFlag                  : 1 1 1 1 1     
LoopFilterAcrossSubpicEnabledFlag       : 0 0 0 0 0

The tile/slice layout is the same to the one in file cfg\nonCTC-SliceConfigExamples\TwoSubpictures_with_EightSlices.cfg in cloned software VVCSoftware_VTM.

The following configurations are used for signalling the subpicture ID (The syntax elements are used from VVC spec text):  
subpic_info_present_flag = 1
subpic_id_mapping_explicitly_signalled_flag = 1
subpic_id_mapping_in_sps_flag = 1
subpic_id_mapping_in_pps_flag = 0
sps_subpic_id_len_minus1 = 15
pps_subpic_id = 100,11,101,1,0

Profile, tier, and level for the bitstream:
Main 10 profile, Main tier, Level 4.1


Max picture width and height, and any additional picture width and height values used (i.e., for reference picture resample or scalability):
SourceWidth=1920
SourceHeight=1080

Picture rate:
FrameRate = 50 


The bitstream can be decoded using VVC software, at Merge request https://vcgit.hhi.fraunhofer.de/jvet/VVCSoftware_VTM/-/merge_requests/1509
will be soon merged in master branch, with commit: 10937a6b1bdeb7daf77e5f8b71e20798aa71ad5f
VTM-8.0 is not used because tile/slice implementation has a bug.

Contact name and email of bitstream submitter:
Semih Esenlik
semih.esenlik@huawei.com
Biao Wang
biao.wang@huawei.com