2014-03-13 18:26:52 +01:00
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/*
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* Copyright (c) 2014 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef VP9_ENCODER_VP9_SVC_LAYERCONTEXT_H_
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#define VP9_ENCODER_VP9_SVC_LAYERCONTEXT_H_
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#include "vpx/vpx_encoder.h"
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#include "vp9/encoder/vp9_ratectrl.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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RATE_CONTROL rc;
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int target_bandwidth;
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2015-05-22 01:15:37 +02:00
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int spatial_layer_target_bandwidth; // Target for the spatial layer.
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2014-03-13 18:26:52 +01:00
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double framerate;
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int avg_frame_size;
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2014-09-19 03:05:07 +02:00
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int max_q;
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int min_q;
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int scaling_factor_num;
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int scaling_factor_den;
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2014-05-16 12:31:30 +02:00
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TWO_PASS twopass;
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2014-08-22 03:06:04 +02:00
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vpx_fixed_buf_t rc_twopass_stats_in;
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2014-03-28 00:59:44 +01:00
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unsigned int current_video_frame_in_layer;
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2014-04-24 22:31:46 +02:00
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int is_key_frame;
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2014-09-02 21:05:14 +02:00
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int frames_from_key_frame;
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2014-08-18 23:51:04 +02:00
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FRAME_TYPE last_frame_type;
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2016-07-27 05:43:23 +02:00
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struct lookahead_entry *alt_ref_source;
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2014-07-14 20:24:17 +02:00
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int alt_ref_idx;
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2014-08-01 19:26:51 +02:00
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int gold_ref_idx;
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2014-07-14 20:24:17 +02:00
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int has_alt_frame;
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size_t layer_size;
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2014-09-11 20:28:03 +02:00
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struct vpx_psnr_pkt psnr_pkt;
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2015-09-08 17:47:42 +02:00
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// Cyclic refresh parameters (aq-mode=3), that need to be updated per-frame.
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int sb_index;
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signed char *map;
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uint8_t *last_coded_q_map;
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2015-09-29 19:00:16 +02:00
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uint8_t *consec_zero_mv;
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2016-07-14 00:58:11 +02:00
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uint8_t speed;
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2014-03-13 18:26:52 +01:00
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} LAYER_CONTEXT;
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2017-12-08 19:38:18 +01:00
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typedef struct SVC {
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2014-03-13 18:26:52 +01:00
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int spatial_layer_id;
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int temporal_layer_id;
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int number_spatial_layers;
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int number_temporal_layers;
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2014-07-14 20:24:17 +02:00
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2014-09-19 03:05:07 +02:00
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int spatial_layer_to_encode;
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2015-10-02 00:46:06 +02:00
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int first_spatial_layer_to_encode;
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2015-10-27 21:02:02 +01:00
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int rc_drop_superframe;
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2014-09-19 03:05:07 +02:00
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2014-10-15 01:25:03 +02:00
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// Workaround for multiple frame contexts
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2016-07-27 05:43:23 +02:00
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enum { ENCODED = 0, ENCODING, NEED_TO_ENCODE } encode_empty_frame_state;
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2014-10-15 01:25:03 +02:00
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struct lookahead_entry empty_frame;
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2015-05-21 01:43:27 +02:00
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int encode_intra_empty_frame;
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2014-10-15 01:25:03 +02:00
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2014-07-14 20:24:17 +02:00
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// Store scaled source frames to be used for temporal filter to generate
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// a alt ref frame.
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YV12_BUFFER_CONFIG scaled_frames[MAX_LAG_BUFFERS];
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2016-02-25 17:38:08 +01:00
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// Temp buffer used for 2-stage down-sampling, for real-time mode.
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YV12_BUFFER_CONFIG scaled_temp;
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2016-07-12 02:06:10 +02:00
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int scaled_one_half;
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int scaled_temp_is_alloc;
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2014-07-14 20:24:17 +02:00
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2014-03-28 00:59:44 +01:00
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// Layer context used for rate control in one pass temporal CBR mode or
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2015-05-22 01:15:37 +02:00
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// two pass spatial mode.
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LAYER_CONTEXT layer_context[VPX_MAX_LAYERS];
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// Indicates what sort of temporal layering is used.
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// Currently, this only works for CBR mode.
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VP9E_TEMPORAL_LAYERING_MODE temporal_layering_mode;
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2015-09-02 20:34:00 +02:00
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// Frame flags and buffer indexes for each spatial layer, set by the
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// application (external settings).
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int ext_frame_flags[VPX_MAX_LAYERS];
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int ext_lst_fb_idx[VPX_MAX_LAYERS];
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int ext_gld_fb_idx[VPX_MAX_LAYERS];
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int ext_alt_fb_idx[VPX_MAX_LAYERS];
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2015-12-07 21:23:56 +01:00
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int ref_frame_index[REF_FRAMES];
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int force_zero_mode_spatial_ref;
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int current_superframe;
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2017-05-26 20:36:45 +02:00
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int non_reference_frame;
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2016-01-15 18:35:41 +01:00
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int use_base_mv;
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2017-04-20 18:50:16 +02:00
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// Used to control the downscaling filter for source scaling, for 1 pass CBR.
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2017-05-03 00:50:31 +02:00
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// downsample_filter_phase: = 0 will do sub-sampling (no weighted average),
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// = 8 will center the target pixel and get a symmetric averaging filter.
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// downsample_filter_type: 4 filters may be used: eighttap_regular,
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// eighttap_smooth, eighttap_sharp, and bilinear.
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INTERP_FILTER downsample_filter_type[VPX_SS_MAX_LAYERS];
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int downsample_filter_phase[VPX_SS_MAX_LAYERS];
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2017-11-09 00:12:44 +01:00
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BLOCK_SIZE *prev_partition_svc;
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int mi_stride[VPX_MAX_LAYERS];
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2017-12-08 19:38:18 +01:00
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int first_layer_denoise;
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2014-03-13 18:26:52 +01:00
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} SVC;
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struct VP9_COMP;
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// Initialize layer context data from init_config().
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void vp9_init_layer_context(struct VP9_COMP *const cpi);
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// Update the layer context from a change_config() call.
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void vp9_update_layer_context_change_config(struct VP9_COMP *const cpi,
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const int target_bandwidth);
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// Prior to encoding the frame, update framerate-related quantities
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2014-03-27 23:46:32 +01:00
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// for the current temporal layer.
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void vp9_update_temporal_layer_framerate(struct VP9_COMP *const cpi);
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// Update framerate-related quantities for the current spatial layer.
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void vp9_update_spatial_layer_framerate(struct VP9_COMP *const cpi,
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double framerate);
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2014-03-13 18:26:52 +01:00
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// Prior to encoding the frame, set the layer context, for the current layer
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// to be encoded, to the cpi struct.
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void vp9_restore_layer_context(struct VP9_COMP *const cpi);
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// Save the layer context after encoding the frame.
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void vp9_save_layer_context(struct VP9_COMP *const cpi);
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2014-03-28 00:59:44 +01:00
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// Initialize second pass rc for spatial svc.
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void vp9_init_second_pass_spatial_svc(struct VP9_COMP *cpi);
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2017-12-08 19:38:18 +01:00
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void get_layer_resolution(const int width_org, const int height_org,
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const int num, const int den, int *width_out,
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int *height_out);
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2014-04-09 03:59:09 +02:00
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// Increment number of video frames in layer
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2014-09-02 21:05:14 +02:00
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void vp9_inc_frame_in_layer(struct VP9_COMP *const cpi);
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2014-04-09 03:59:09 +02:00
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2014-04-24 22:31:46 +02:00
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// Check if current layer is key frame in spatial upper layer
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int vp9_is_upper_layer_key_frame(const struct VP9_COMP *const cpi);
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2014-06-24 23:01:17 +02:00
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// Get the next source buffer to encode
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struct lookahead_entry *vp9_svc_lookahead_pop(struct VP9_COMP *const cpi,
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struct lookahead_ctx *ctx,
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int drain);
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2014-09-19 03:05:07 +02:00
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// Start a frame and initialize svc parameters
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int vp9_svc_start_frame(struct VP9_COMP *const cpi);
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2014-06-24 23:01:17 +02:00
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2015-05-22 01:15:37 +02:00
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int vp9_one_pass_cbr_svc_start_layer(struct VP9_COMP *const cpi);
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2015-09-08 17:47:42 +02:00
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void vp9_free_svc_cyclic_refresh(struct VP9_COMP *const cpi);
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2016-03-07 22:43:11 +01:00
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void vp9_svc_reset_key_frame(struct VP9_COMP *const cpi);
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2014-03-13 18:26:52 +01:00
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // VP9_ENCODER_VP9_SVC_LAYERCONTEXT_
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