US 12,231,691 B2
Decoding capability information in common media application format
Ye-kui Wang, San Diego, CA (US)
Assigned to Lemon Inc.
Filed by Lemon Inc., Grand Cayman (KY)
Filed on Apr. 12, 2022, as Appl. No. 17/719,201.
Claims priority of provisional application 63/176,315, filed on Apr. 18, 2021.
Prior Publication US 2022/0337878 A1, Oct. 20, 2022
Int. Cl. H04N 19/44 (2014.01); H04N 7/01 (2006.01); H04N 19/169 (2014.01); H04N 19/172 (2014.01); H04N 19/46 (2014.01); H04N 19/463 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/70 (2014.11) [H04N 7/01 (2013.01); H04N 19/172 (2014.11); H04N 19/188 (2014.11); H04N 19/1883 (2014.11); H04N 19/44 (2014.11); H04N 19/46 (2014.11); H04N 19/463 (2014.11)] 14 Claims
OG exemplary drawing
 
1. A method for processing video data comprising:
determining information in a Decoding Capability Information (DCI) network abstraction layer (NAL) unit in a Versatile Video Coding (VVC) Common Media Application Format (CMAF) track based on a rule, wherein the rule specifies a value of a syntax element dci_num_ptls_minus1 specifying a number of profile, tier, and level (PTL) syntax structures (profile_tier_level) minus one in the DCI NAL unit is limited to be zero; and
performing a conversion between a visual media data and a media data file based on the information in the DCI NAL unit,
wherein the rule further specifies a value of a PTL multilayer enabled flag (ptl_multilayer_enabled_flag) in one of the PTL syntax structures in the DCI NAL unit is constrained limited to be zero, and wherein ptl_multilayer_enabled_flag equal to zero specifies that there is only one layer in a coded video sequence (CVS), and
wherein the rule further specifies a value of a video usability information progressive source flag (vui_progressive_source_flag) field in the SPS is limited to be one.