/*! *\briefThestuctureofquantitiesrelatedtoeachspatialandtemporallayer. *\ingroupSVC
*/ typedefstruct { /*!\cond */
RATE_CONTROL rc;
PRIMARY_RATE_CONTROL p_rc;
int framerate_factor;
int64_t layer_target_bitrate; // In bits per second.
int scaling_factor_num;
int scaling_factor_den;
int64_t target_bandwidth;
int64_t spatial_layer_target_bandwidth; double framerate;
int avg_frame_size;
int max_q;
int min_q;
int frames_from_key_frame; /*!\endcond */
/*! *Cyclicrefreshparameters(aq-mode=3),thatneedtobeupdatedper-frame.
*/
int sb_index; /*! *Segmentationmap
*/
int8_t *map; /*! *Numberofblocksonsegment1
*/
int actual_num_seg1_blocks;
/*! *Numberofblocksonsegment2
*/
int actual_num_seg2_blocks; /*! *Counterusedtodetectscenechange.
*/
int counter_encode_maxq_scene_change;
/*! *\briefThestuctureofSVC. *\ingroupSVC
*/ typedefstruct SVC { /*!\cond */
int spatial_layer_id;
int temporal_layer_id;
int number_spatial_layers;
int number_temporal_layers;
int prev_number_spatial_layers;
int prev_number_temporal_layers;
int use_flexible_mode;
int ksvc_fixed_mode; /*!\endcond */
/*!\cond */ double base_framerate; unsigned int current_superframe;
int skip_mvsearch_last;
int skip_mvsearch_gf;
int skip_mvsearch_altref;
int spatial_layer_fb[REF_FRAMES];
int temporal_layer_fb[REF_FRAMES];
int num_encoded_top_layer;
int first_layer_denoise;
YV12_BUFFER_CONFIG source_last_TL0; /*!\endcond */
/*!\brief Prior to check if reference is lower spatial layer at the same *timestamp/superframe. * *\ingroupSVC *\callgraph *\callergraph * *\param[in]cpiToplevelencoderstructure *\param[in]ref_frameReferenceframe * *\returnTrueiftheref_frameiflowerspatiallayer,otherwisefalse.
*/ bool av1_check_ref_is_low_spatial_res_super_frame(struct AV1_COMP *const cpi,
int ref_frame);
/*!\brief Prior to encoding the frame, set the layer context, for the current layertobeencoded,tothecpistruct. * *\ingroupSVC *\callgraph *\callergraph * *\param[in]cpiToplevelencoderstructure * *\remarkNothingreturned.Layercontextforcurrentlayerisset.
*/ void av1_restore_layer_context(struct AV1_COMP *const cpi);
/*!\brief Save the layer context after encoding the frame. * *\ingroupSVC *\callgraph *\callergraph * *\param[in]cpiToplevelencoderstructure
*/ void av1_save_layer_context(struct AV1_COMP *const cpi);
/*!\brief Free the memory used for cyclic refresh in layer context. * *\ingroupSVC *\callgraph *\callergraph * *\param[in]cpiToplevelencoderstructure
*/ void av1_free_svc_cyclic_refresh(struct AV1_COMP *const cpi);
/*!\brief Reset on key frame: reset counters, references and buffer updates. * *\ingroupSVC *\callgraph *\callergraph * *\param[in]cpiToplevelencoderstructure *\param[in]is_keyWhethercurrentlayeriskeyframe
*/ void av1_svc_reset_temporal_layers(struct AV1_COMP *const cpi, int is_key);
/*!\brief Before encoding, set resolutions and allocate compressor data. * *\ingroupSVC *\callgraph *\callergraph * *\param[in]cpiToplevelencoderstructure
*/ void av1_one_pass_cbr_svc_start_layer(struct AV1_COMP *const cpi);
/*!\brief Get primary reference frame for current layer * *\ingroupSVC *\callgraph *\callergraph * *\param[in]cpiToplevelencoderstructure * *\returnTheprimaryreferenceframeforcurrentlayer.
*/
int av1_svc_primary_ref_frame(conststruct AV1_COMP *const cpi);
/*!\brief Get resolution for current layer. * *\ingroupSVC *\param[in]width_orgOriginalwidth,unscaled *\param[in]height_orgOriginalheight,unscaled *\param[in]numNumeratorforthescaleratio *\param[in]denDenominatorforthescaleratio *\param[in]width_outOutputwidth,scaledforcurrentlayer *\param[in]height_outOutputheight,scaledforcurrentlayer * *\remarkNothingisreturned.Insteadthescaledwidthandheightareset.
*/ void av1_get_layer_resolution(const int width_org, const int height_org, const int num, const int den, int *width_out,
int *height_out);
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