equal to 1 means that the filter level depends on the mode and reference frame used to predict a block
equal to 1 means that the bitstream contains additional syntax elements that specify which mode and reference frame deltas are to be updated
indicates the loop filter strength
contains the adjustment needed for the filter level based on the chosen mode
contains the adjustment needed for the filter level based on the chosen reference frame
indicates the sharpness level
equal to 1 means that the bitstream contains the syntax element loop_filter_mode_deltas
equal to 1 means that the bitstream contains the syntax element loop_filter_ref_delta
Loop filter params. See "6.2.8 Loop filter params syntax" and "7.2.8 Loop filter semantics".
If syntax elements for
update_ref_deltaand/orloop_filter_mode_deltasare not present in bitstream, parser will fillloop_filter_ref_deltasandloop_filter_mode_deltasvalues by using previously parsed values.