GstCodecParsers.H266SliceHdr

Fields

Name	Type	Access	Description
alf_aps_id_chroma	int	r/w	specifies the aps_adaptation_parameter_set_id of the ALF APS that the chroma component of the slice refers to.
alf_aps_id_luma	bytes	r/w	specifies the aps_adaptation_parameter_set_id of the i-th ALF APS that the luma component of the slice refers to.
alf_cb_enabled_flag	int	r/w	specifies whether ALF is enabled for the Cb colour component of the current slice.
alf_cc_cb_aps_id	int	r/w	specifies the aps_adaptation_parameter_set_id that the Cb colour component of the slice refers to.
alf_cc_cb_enabled_flag	int	r/w	specifies whether CCALF is enabled for the Cb colour component.
alf_cc_cr_aps_id	int	r/w	specifies the aps_adaptation_parameter_set_id that the Cr colour component of the slice refers to.
alf_cc_cr_enabled_flag	int	r/w	specifies whether CCALF is enabled for the Cr colour component of the current slice.
alf_cr_enabled_flag	int	r/w	specifies whether ALF is enabled for the Cr colour component of the current slice.
alf_enabled_flag	int	r/w	specifies whether ALF is enabled for the Y, Cb, or Cr colour component of the current slice.
cabac_init_flag	int	r/w	specifies the method for determining the initialization table used in the initialization process for context variables.
cb_beta_offset_div2	int	r/w	specify the deblocking parameter offsets for beta that are applied to the Cb component for the current slice.
cb_qp_offset	int	r/w	specifies a difference to be added to the value of pps_cb_qp_offset when determining the value of the Qp’Cb quantization.
cb_tc_offset_div2	int	r/w	specify the deblocking parameter offsets for tC that are applied to the Cb component for the current slice.
collocated_from_l0_flag	int	r/w	specifies whether the collocated picture used for temporal motion vector prediction is derived from RPL 0.
collocated_ref_idx	int	r/w	specifies the reference index of the collocated picture used for temporal motion vector prediction.
cr_beta_offset_div2	int	r/w	specify the deblocking parameter offsets for beta that are applied to the Cr component for the current slice.
cr_qp_offset	int	r/w	specifies a difference to be added to the value of pps_cr_qp_offset when determining the value of the Qp’ Cr quantization.
cr_tc_offset_div2	int	r/w	specify the deblocking parameter offsets for tC that are applied to the Cr component for the current slice.
cu_chroma_qp_offset_enabled_flag	int	r/w	specifies whether the cu_chroma_qp_offset_flag could be present in the transform unit and palette coding syntax of the current slice.
deblocking_filter_disabled_flag	int	r/w	specifies whether the deblocking filter is disabled for the current slice.
deblocking_params_present_flag	int	r/w	specifies whether the deblocking parameters could be present in the slice header.
dep_quant_used_flag	int	r/w	specifies whether dependent quantization is used.
entry_offset_len_minus1	int	r/w	specifies the length, in bits, of the sh_entry_point_offset_minus1[i] syntax elements.
entry_point_offset_minus1	[int]	r/w	specifies the i-th entry point offset in bytes.
entry_point_start_ctu	[int]	r/w
explicit_scaling_list_used_flag	int	r/w	specifies that the explicit scaling list is used in the scaling process for transform coefficients.
extra_bit	bytes	r/w	could have any value.
header_size	int	r/w	size of the slice_header in bits.
joint_cbcr_qp_offset	int	r/w	specifies a difference to be added to the value of pps_joint_cbcr_qp_offset_value when determining the value of the Qp’CbCr.
lmcs_used_flag	int	r/w	specifies that luma mapping is used for the current slice and chroma scaling could be used for the current slice.
luma_beta_offset_div2	int	r/w	specify the deblocking parameter offsets for beta that are applied to the luma component for the current slice.
luma_tc_offset_div2	int	r/w	specify the deblocking parameter offsets for tC that are applied to the luma component for the current slice.
n_emulation_prevention_bytes	int	r/w	number of emulation prevention bytes (EPB) in this slice_header.
no_output_of_prior_pics_flag	int	r/w	affects the output of previously-decoded pictures in the DPB.
num_alf_aps_ids_luma	int	r/w	specifies the number of ALF APSs.
num_entry_points	int	r/w	NumEntryPoints specifies the number of entry points in the current slice.
num_ref_idx_active	bytes	r/w	the calculated NumRefIdxActive value.
num_ref_idx_active_minus1	bytes	r/w	is used for the derivation of the variable NumRefIdxActive[i].
num_ref_idx_active_override_flag	int	r/w	specifies whether the syntax element sh_num_ref_idx_active_minus1[0] is present for P and B slices.
num_tiles_in_slice_minus1	int	r/w	specifies the number of tiles in the slice.
picture_header	GstCodecParsers.H266PicHdr	r/w	the picture header of GstCodecParsers.H266PicHdr.
picture_header_in_slice_header_flag	int	r/w
pred_weight_table	GstCodecParsers.H266PredWeightTable	r/w	prediction weight table of GstCodecParsers.H266PredWeightTable.
qp_delta	int	r/w	specifies the initial value of QpY to be used for the coding blocks in the slice.
ref_pic_lists	GstCodecParsers.H266RefPicLists	r/w	reference pictures lists of GstCodecParsers.H266RefPicLists.
reverse_last_sig_coeff_flag	int	r/w	specifies whether the coordinates of the last significant coefficient are coded relative to ( 0, 0 ) for each transform block of the current slice.
sao_chroma_used_flag	int	r/w	specifies whether SAO is used for the chroma component in the current slice.
sao_luma_used_flag	int	r/w	specifies whether SAO is used for the luma component in the current slice.
sign_data_hiding_used_flag	int	r/w	specifies whether sign bit hiding is not used for the current slice.
slice_address	int	r/w	specifies the slice address of the slice.
slice_header_extension_data_byte	bytes	r/w	could have any value.
slice_header_extension_length	int	r/w	specifies the length of the slice header extension data in bytes.
slice_qp_y	int	r/w
slice_type	int	r/w	specifies the coding type of the slice.
subpic_id	int	r/w	specifies the subpicture ID of the subpicture.
ts_residual_coding_disabled_flag	int	r/w	specifies whether the residual_coding syntax structure is used to parse the residual samples of a transform skip block for the current slice.
ts_residual_coding_rice_idx_minus1	int	r/w	specifies whether Rice parameter used for the residual_ts_coding syntax structure in the current slice.

Methods

None

Details

class GstCodecParsers.H266SliceHdr

Structure defining the H266 slice header.

New in version 1.26.