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The stucture of SVC. More...

#include <svc_layercontext.h>

Data Fields

LAYER_CONTEXTlayer_context
 
int num_allocated_layers
 
InterpFilter downsample_filter_type [4]
 
int downsample_filter_phase [4]
 
int force_zero_mode_spatial_ref
 
int has_lower_quality_layer
 

Detailed Description

The stucture of SVC.

Field Documentation

◆ layer_context

LAYER_CONTEXT* SVC::layer_context

Layer context used for rate control in CBR mode. An array. The index for spatial layer sl and temporal layer tl is sl * number_temporal_layers + tl.

Referenced by av1_alloc_layer_context(), av1_free_svc_cyclic_refresh(), av1_init_layer_context(), av1_one_pass_cbr_svc_start_layer(), av1_svc_reset_temporal_layers(), av1_update_layer_context_change_config(), av1_update_temporal_layer_framerate(), get_layer_context(), and grade_source_content_sb().

◆ num_allocated_layers

int SVC::num_allocated_layers

Number of layers allocated for layer_context. If nonzero, must be greater than or equal to number_spatial_layers * number_temporal_layers.

Referenced by av1_alloc_layer_context().

◆ downsample_filter_type

InterpFilter SVC::downsample_filter_type[4]

◆ downsample_filter_phase

int SVC::downsample_filter_phase[4]

Downsample_filter_phase: = 0 will do sub-sampling (no weighted average), = 8 will center the target pixel and get a symmetric averaging filter.

Referenced by av1_init_layer_context(), av1_nonrd_pick_inter_mode_sb(), and encode_without_recode().

◆ force_zero_mode_spatial_ref

int SVC::force_zero_mode_spatial_ref

Force zero-mv in mode search for the spatial/inter-layer reference.

Referenced by av1_init_layer_context(), and av1_restore_layer_context().

◆ has_lower_quality_layer

int SVC::has_lower_quality_layer

Flag to indicate that current spatial layer has a lower quality layer (at the same timestamp) that can be used as a reference. Lower quality layer refers to the same resolution but encoded at different/lower bitrate.

Referenced by av1_init_layer_context(), av1_nonrd_pick_inter_mode_sb(), and av1_one_pass_cbr_svc_start_layer().


The documentation for this struct was generated from the following file: