/* * Copyright (c) 2010 The WebM project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree. */ #ifndef VP9_ENCODER_VP9_ENCODER_H_ #define VP9_ENCODER_VP9_ENCODER_H_ #include #include "./vpx_config.h" #include "vpx/internal/vpx_codec_internal.h" #include "vpx/vp8cx.h" #if CONFIG_INTERNAL_STATS #include "vpx_dsp/ssim.h" #endif #include "vpx_dsp/variance.h" #include "vpx_ports/system_state.h" #include "vpx_util/vpx_thread.h" #include "vp9/common/vp9_alloccommon.h" #include "vp9/common/vp9_ppflags.h" #include "vp9/common/vp9_entropymode.h" #include "vp9/common/vp9_thread_common.h" #include "vp9/common/vp9_onyxc_int.h" #include "vp9/encoder/vp9_alt_ref_aq.h" #include "vp9/encoder/vp9_aq_cyclicrefresh.h" #include "vp9/encoder/vp9_context_tree.h" #include "vp9/encoder/vp9_encodemb.h" #include "vp9/encoder/vp9_firstpass.h" #include "vp9/encoder/vp9_lookahead.h" #include "vp9/encoder/vp9_mbgraph.h" #include "vp9/encoder/vp9_mcomp.h" #include "vp9/encoder/vp9_noise_estimate.h" #include "vp9/encoder/vp9_quantize.h" #include "vp9/encoder/vp9_ratectrl.h" #include "vp9/encoder/vp9_rd.h" #include "vp9/encoder/vp9_speed_features.h" #include "vp9/encoder/vp9_svc_layercontext.h" #include "vp9/encoder/vp9_tokenize.h" #if CONFIG_VP9_TEMPORAL_DENOISING #include "vp9/encoder/vp9_denoiser.h" #endif #ifdef __cplusplus extern "C" { #endif // vp9 uses 10,000,000 ticks/second as time stamp #define TICKS_PER_SEC 10000000 typedef struct { int nmvjointcost[MV_JOINTS]; int nmvcosts[2][MV_VALS]; int nmvcosts_hp[2][MV_VALS]; vpx_prob segment_pred_probs[PREDICTION_PROBS]; unsigned char *last_frame_seg_map_copy; // 0 = Intra, Last, GF, ARF signed char last_ref_lf_deltas[MAX_REF_LF_DELTAS]; // 0 = ZERO_MV, MV signed char last_mode_lf_deltas[MAX_MODE_LF_DELTAS]; FRAME_CONTEXT fc; } CODING_CONTEXT; typedef enum { // encode_breakout is disabled. ENCODE_BREAKOUT_DISABLED = 0, // encode_breakout is enabled. ENCODE_BREAKOUT_ENABLED = 1, // encode_breakout is enabled with small max_thresh limit. ENCODE_BREAKOUT_LIMITED = 2 } ENCODE_BREAKOUT_TYPE; typedef enum { NORMAL = 0, FOURFIVE = 1, THREEFIVE = 2, ONETWO = 3 } VPX_SCALING; typedef enum { // Good Quality Fast Encoding. The encoder balances quality with the amount of // time it takes to encode the output. Speed setting controls how fast. GOOD, // The encoder places priority on the quality of the output over encoding // speed. The output is compressed at the highest possible quality. This // option takes the longest amount of time to encode. Speed setting ignored. BEST, // Realtime/Live Encoding. This mode is optimized for realtime encoding (for // example, capturing a television signal or feed from a live camera). Speed // setting controls how fast. REALTIME } MODE; typedef enum { FRAMEFLAGS_KEY = 1 << 0, FRAMEFLAGS_GOLDEN = 1 << 1, FRAMEFLAGS_ALTREF = 1 << 2, } FRAMETYPE_FLAGS; typedef enum { NO_AQ = 0, VARIANCE_AQ = 1, COMPLEXITY_AQ = 2, CYCLIC_REFRESH_AQ = 3, EQUATOR360_AQ = 4, // AQ based on lookahead temporal // variance (only valid for altref frames) LOOKAHEAD_AQ = 5, AQ_MODE_COUNT // This should always be the last member of the enum } AQ_MODE; typedef enum { RESIZE_NONE = 0, // No frame resizing allowed (except for SVC). RESIZE_FIXED = 1, // All frames are coded at the specified dimension. RESIZE_DYNAMIC = 2 // Coded size of each frame is determined by the codec. } RESIZE_TYPE; typedef struct VP9EncoderConfig { BITSTREAM_PROFILE profile; vpx_bit_depth_t bit_depth; // Codec bit-depth. int width; // width of data passed to the compressor int height; // height of data passed to the compressor unsigned int input_bit_depth; // Input bit depth. double init_framerate; // set to passed in framerate int64_t target_bandwidth; // bandwidth to be used in bits per second int noise_sensitivity; // pre processing blur: recommendation 0 int sharpness; // sharpening output: recommendation 0: int speed; // maximum allowed bitrate for any intra frame in % of bitrate target. unsigned int rc_max_intra_bitrate_pct; // maximum allowed bitrate for any inter frame in % of bitrate target. unsigned int rc_max_inter_bitrate_pct; // percent of rate boost for golden frame in CBR mode. unsigned int gf_cbr_boost_pct; MODE mode; int pass; // Key Framing Operations int auto_key; // autodetect cut scenes and set the keyframes int key_freq; // maximum distance to key frame. int lag_in_frames; // how many frames lag before we start encoding // ---------------------------------------------------------------- // DATARATE CONTROL OPTIONS // vbr, cbr, constrained quality or constant quality enum vpx_rc_mode rc_mode; // buffer targeting aggressiveness int under_shoot_pct; int over_shoot_pct; // buffering parameters int64_t starting_buffer_level_ms; int64_t optimal_buffer_level_ms; int64_t maximum_buffer_size_ms; // Frame drop threshold. int drop_frames_water_mark; // controlling quality int fixed_q; int worst_allowed_q; int best_allowed_q; int cq_level; AQ_MODE aq_mode; // Adaptive Quantization mode // Special handling of Adaptive Quantization for AltRef frames int alt_ref_aq; // Internal frame size scaling. RESIZE_TYPE resize_mode; int scaled_frame_width; int scaled_frame_height; // Enable feature to reduce the frame quantization every x frames. int frame_periodic_boost; // two pass datarate control int two_pass_vbrbias; // two pass datarate control tweaks int two_pass_vbrmin_section; int two_pass_vbrmax_section; // END DATARATE CONTROL OPTIONS // ---------------------------------------------------------------- // Spatial and temporal scalability. int ss_number_layers; // Number of spatial layers. int ts_number_layers; // Number of temporal layers. // Bitrate allocation for spatial layers. int layer_target_bitrate[VPX_MAX_LAYERS]; int ss_target_bitrate[VPX_SS_MAX_LAYERS]; int ss_enable_auto_arf[VPX_SS_MAX_LAYERS]; // Bitrate allocation (CBR mode) and framerate factor, for temporal layers. int ts_rate_decimator[VPX_TS_MAX_LAYERS]; int enable_auto_arf; int encode_breakout; // early breakout : for video conf recommend 800 /* Bitfield defining the error resiliency features to enable. * Can provide decodable frames after losses in previous * frames and decodable partitions after losses in the same frame. */ unsigned int error_resilient_mode; /* Bitfield defining the parallel decoding mode where the * decoding in successive frames may be conducted in parallel * just by decoding the frame headers. */ unsigned int frame_parallel_decoding_mode; int arnr_max_frames; int arnr_strength; int min_gf_interval; int max_gf_interval; int tile_columns; int tile_rows; int max_threads; int target_level; vpx_fixed_buf_t two_pass_stats_in; struct vpx_codec_pkt_list *output_pkt_list; #if CONFIG_FP_MB_STATS vpx_fixed_buf_t firstpass_mb_stats_in; #endif vp8e_tuning tuning; vp9e_tune_content content; #if CONFIG_VP9_HIGHBITDEPTH int use_highbitdepth; #endif vpx_color_space_t color_space; vpx_color_range_t color_range; int render_width; int render_height; VP9E_TEMPORAL_LAYERING_MODE temporal_layering_mode; } VP9EncoderConfig; static INLINE int is_lossless_requested(const VP9EncoderConfig *cfg) { return cfg->best_allowed_q == 0 && cfg->worst_allowed_q == 0; } // TODO(jingning) All spatially adaptive variables should go to TileDataEnc. typedef struct TileDataEnc { TileInfo tile_info; int thresh_freq_fact[BLOCK_SIZES][MAX_MODES]; int mode_map[BLOCK_SIZES][MAX_MODES]; } TileDataEnc; typedef struct RD_COUNTS { vp9_coeff_count coef_counts[TX_SIZES][PLANE_TYPES]; int64_t comp_pred_diff[REFERENCE_MODES]; int64_t filter_diff[SWITCHABLE_FILTER_CONTEXTS]; int m_search_count; int ex_search_count; } RD_COUNTS; typedef struct ThreadData { MACROBLOCK mb; RD_COUNTS rd_counts; FRAME_COUNTS *counts; PICK_MODE_CONTEXT *leaf_tree; PC_TREE *pc_tree; PC_TREE *pc_root; } ThreadData; struct EncWorkerData; typedef struct ActiveMap { int enabled; int update; unsigned char *map; } ActiveMap; typedef enum { Y, U, V, ALL } STAT_TYPE; typedef struct IMAGE_STAT { double stat[ALL + 1]; double worst; } ImageStat; // Kf noise filtering currently disabled by default in build. // #define ENABLE_KF_DENOISE 1 #define CPB_WINDOW_SIZE 4 #define FRAME_WINDOW_SIZE 128 #define SAMPLE_RATE_GRACE_P 0.015 #define VP9_LEVELS 14 typedef enum { LEVEL_UNKNOWN = 0, LEVEL_1 = 10, LEVEL_1_1 = 11, LEVEL_2 = 20, LEVEL_2_1 = 21, LEVEL_3 = 30, LEVEL_3_1 = 31, LEVEL_4 = 40, LEVEL_4_1 = 41, LEVEL_5 = 50, LEVEL_5_1 = 51, LEVEL_5_2 = 52, LEVEL_6 = 60, LEVEL_6_1 = 61, LEVEL_6_2 = 62, LEVEL_MAX = 255 } VP9_LEVEL; typedef struct { VP9_LEVEL level; uint64_t max_luma_sample_rate; uint32_t max_luma_picture_size; double average_bitrate; // in kilobits per second double max_cpb_size; // in kilobits double compression_ratio; uint8_t max_col_tiles; uint32_t min_altref_distance; uint8_t max_ref_frame_buffers; } Vp9LevelSpec; typedef struct { int64_t ts; // timestamp uint32_t luma_samples; uint32_t size; // in bytes } FrameRecord; typedef struct { FrameRecord buf[FRAME_WINDOW_SIZE]; uint8_t start; uint8_t len; } FrameWindowBuffer; typedef struct { uint8_t seen_first_altref; uint32_t frames_since_last_altref; uint64_t total_compressed_size; uint64_t total_uncompressed_size; double time_encoded; // in seconds FrameWindowBuffer frame_window_buffer; int ref_refresh_map; } Vp9LevelStats; typedef struct { Vp9LevelStats level_stats; Vp9LevelSpec level_spec; } Vp9LevelInfo; typedef struct VP9_COMP { QUANTS quants; ThreadData td; MB_MODE_INFO_EXT *mbmi_ext_base; DECLARE_ALIGNED(16, int16_t, y_dequant[QINDEX_RANGE][8]); DECLARE_ALIGNED(16, int16_t, uv_dequant[QINDEX_RANGE][8]); VP9_COMMON common; VP9EncoderConfig oxcf; struct lookahead_ctx *lookahead; struct lookahead_entry *alt_ref_source; YV12_BUFFER_CONFIG *Source; YV12_BUFFER_CONFIG *Last_Source; // NULL for first frame and alt_ref frames YV12_BUFFER_CONFIG *un_scaled_source; YV12_BUFFER_CONFIG scaled_source; YV12_BUFFER_CONFIG *unscaled_last_source; YV12_BUFFER_CONFIG scaled_last_source; #ifdef ENABLE_KF_DENOISE YV12_BUFFER_CONFIG raw_unscaled_source; YV12_BUFFER_CONFIG raw_scaled_source; #endif YV12_BUFFER_CONFIG *raw_source_frame; TileDataEnc *tile_data; int allocated_tiles; // Keep track of memory allocated for tiles. // For a still frame, this flag is set to 1 to skip partition search. int partition_search_skippable_frame; int scaled_ref_idx[MAX_REF_FRAMES]; int lst_fb_idx; int gld_fb_idx; int alt_fb_idx; int refresh_last_frame; int refresh_golden_frame; int refresh_alt_ref_frame; int ext_refresh_frame_flags_pending; int ext_refresh_last_frame; int ext_refresh_golden_frame; int ext_refresh_alt_ref_frame; int ext_refresh_frame_context_pending; int ext_refresh_frame_context; YV12_BUFFER_CONFIG last_frame_uf; TOKENEXTRA *tile_tok[4][1 << 6]; uint32_t tok_count[4][1 << 6]; // Ambient reconstruction err target for force key frames int64_t ambient_err; RD_OPT rd; CODING_CONTEXT coding_context; int *nmvcosts[2]; int *nmvcosts_hp[2]; int *nmvsadcosts[2]; int *nmvsadcosts_hp[2]; int64_t last_time_stamp_seen; int64_t last_end_time_stamp_seen; int64_t first_time_stamp_ever; RATE_CONTROL rc; double framerate; int interp_filter_selected[MAX_REF_FRAMES][SWITCHABLE]; struct vpx_codec_pkt_list *output_pkt_list; MBGRAPH_FRAME_STATS mbgraph_stats[MAX_LAG_BUFFERS]; int mbgraph_n_frames; // number of frames filled in the above int static_mb_pct; // % forced skip mbs by segmentation int ref_frame_flags; SPEED_FEATURES sf; uint32_t max_mv_magnitude; int mv_step_param; int allow_comp_inter_inter; // Default value is 1. From first pass stats, encode_breakout may be disabled. ENCODE_BREAKOUT_TYPE allow_encode_breakout; // Get threshold from external input. A suggested threshold is 800 for HD // clips, and 300 for < HD clips. int encode_breakout; uint8_t *segmentation_map; // segment threashold for encode breakout int segment_encode_breakout[MAX_SEGMENTS]; CYCLIC_REFRESH *cyclic_refresh; ActiveMap active_map; fractional_mv_step_fp *find_fractional_mv_step; vp9_full_search_fn_t full_search_sad; vp9_diamond_search_fn_t diamond_search_sad; vp9_variance_fn_ptr_t fn_ptr[BLOCK_SIZES]; uint64_t time_receive_data; uint64_t time_compress_data; uint64_t time_pick_lpf; uint64_t time_encode_sb_row; #if CONFIG_FP_MB_STATS int use_fp_mb_stats; #endif TWO_PASS twopass; // Force recalculation of segment_ids for each mode info uint8_t force_update_segmentation; YV12_BUFFER_CONFIG alt_ref_buffer; // class responsible for adaptive // quantization of altref frames struct ALT_REF_AQ *alt_ref_aq; #if CONFIG_INTERNAL_STATS unsigned int mode_chosen_counts[MAX_MODES]; int count; uint64_t total_sq_error; uint64_t total_samples; ImageStat psnr; uint64_t totalp_sq_error; uint64_t totalp_samples; ImageStat psnrp; double total_blockiness; double worst_blockiness; int bytes; double summed_quality; double summed_weights; double summedp_quality; double summedp_weights; unsigned int tot_recode_hits; double worst_ssim; ImageStat ssimg; ImageStat fastssim; ImageStat psnrhvs; int b_calculate_ssimg; int b_calculate_blockiness; int b_calculate_consistency; double total_inconsistency; double worst_consistency; Ssimv *ssim_vars; Metrics metrics; #endif int b_calculate_psnr; int droppable; int initial_width; int initial_height; int initial_mbs; // Number of MBs in the full-size frame; to be used to // normalize the firstpass stats. This will differ from the // number of MBs in the current frame when the frame is // scaled. int use_svc; SVC svc; // Store frame variance info in SOURCE_VAR_BASED_PARTITION search type. diff *source_diff_var; // The threshold used in SOURCE_VAR_BASED_PARTITION search type. unsigned int source_var_thresh; int frames_till_next_var_check; int frame_flags; search_site_config ss_cfg; int mbmode_cost[INTRA_MODES]; unsigned int inter_mode_cost[INTER_MODE_CONTEXTS][INTER_MODES]; int intra_uv_mode_cost[FRAME_TYPES][INTRA_MODES][INTRA_MODES]; int y_mode_costs[INTRA_MODES][INTRA_MODES][INTRA_MODES]; int switchable_interp_costs[SWITCHABLE_FILTER_CONTEXTS][SWITCHABLE_FILTERS]; int partition_cost[PARTITION_CONTEXTS][PARTITION_TYPES]; int multi_arf_allowed; int multi_arf_enabled; int multi_arf_last_grp_enabled; #if CONFIG_VP9_TEMPORAL_DENOISING VP9_DENOISER denoiser; #endif int resize_pending; int resize_state; int external_resize; int resize_scale_num; int resize_scale_den; int resize_avg_qp; int resize_buffer_underflow; int resize_count; int use_skin_detection; int target_level; NOISE_ESTIMATE noise_estimate; // Count on how many consecutive times a block uses small/zeromv for encoding. uint8_t *consec_zero_mv; // VAR_BASED_PARTITION thresholds // 0 - threshold_64x64; 1 - threshold_32x32; // 2 - threshold_16x16; 3 - vbp_threshold_8x8; int64_t vbp_thresholds[4]; int64_t vbp_threshold_minmax; int64_t vbp_threshold_sad; BLOCK_SIZE vbp_bsize_min; // Multi-threading int num_workers; VPxWorker *workers; struct EncWorkerData *tile_thr_data; VP9LfSync lf_row_sync; int keep_level_stats; Vp9LevelInfo level_info; } VP9_COMP; void vp9_initialize_enc(void); struct VP9_COMP *vp9_create_compressor(VP9EncoderConfig *oxcf, BufferPool *const pool); void vp9_remove_compressor(VP9_COMP *cpi); void vp9_change_config(VP9_COMP *cpi, const VP9EncoderConfig *oxcf); // receive a frames worth of data. caller can assume that a copy of this // frame is made and not just a copy of the pointer.. int vp9_receive_raw_frame(VP9_COMP *cpi, vpx_enc_frame_flags_t frame_flags, YV12_BUFFER_CONFIG *sd, int64_t time_stamp, int64_t end_time_stamp); int vp9_get_compressed_data(VP9_COMP *cpi, unsigned int *frame_flags, size_t *size, uint8_t *dest, int64_t *time_stamp, int64_t *time_end, int flush); int vp9_get_preview_raw_frame(VP9_COMP *cpi, YV12_BUFFER_CONFIG *dest, vp9_ppflags_t *flags); int vp9_use_as_reference(VP9_COMP *cpi, int ref_frame_flags); void vp9_update_reference(VP9_COMP *cpi, int ref_frame_flags); int vp9_copy_reference_enc(VP9_COMP *cpi, VP9_REFFRAME ref_frame_flag, YV12_BUFFER_CONFIG *sd); int vp9_set_reference_enc(VP9_COMP *cpi, VP9_REFFRAME ref_frame_flag, YV12_BUFFER_CONFIG *sd); int vp9_update_entropy(VP9_COMP *cpi, int update); int vp9_set_active_map(VP9_COMP *cpi, unsigned char *map, int rows, int cols); int vp9_get_active_map(VP9_COMP *cpi, unsigned char *map, int rows, int cols); int vp9_set_internal_size(VP9_COMP *cpi, VPX_SCALING horiz_mode, VPX_SCALING vert_mode); int vp9_set_size_literal(VP9_COMP *cpi, unsigned int width, unsigned int height); void vp9_set_svc(VP9_COMP *cpi, int use_svc); int vp9_get_quantizer(struct VP9_COMP *cpi); static INLINE int frame_is_kf_gf_arf(const VP9_COMP *cpi) { return frame_is_intra_only(&cpi->common) || cpi->refresh_alt_ref_frame || (cpi->refresh_golden_frame && !cpi->rc.is_src_frame_alt_ref); } static INLINE int get_ref_frame_map_idx(const VP9_COMP *cpi, MV_REFERENCE_FRAME ref_frame) { if (ref_frame == LAST_FRAME) { return cpi->lst_fb_idx; } else if (ref_frame == GOLDEN_FRAME) { return cpi->gld_fb_idx; } else { return cpi->alt_fb_idx; } } static INLINE int get_ref_frame_buf_idx(const VP9_COMP *const cpi, int ref_frame) { const VP9_COMMON *const cm = &cpi->common; const int map_idx = get_ref_frame_map_idx(cpi, ref_frame); return (map_idx != INVALID_IDX) ? cm->ref_frame_map[map_idx] : INVALID_IDX; } static INLINE YV12_BUFFER_CONFIG *get_ref_frame_buffer( VP9_COMP *cpi, MV_REFERENCE_FRAME ref_frame) { VP9_COMMON *const cm = &cpi->common; const int buf_idx = get_ref_frame_buf_idx(cpi, ref_frame); return buf_idx != INVALID_IDX ? &cm->buffer_pool->frame_bufs[buf_idx].buf : NULL; } static INLINE int get_token_alloc(int mb_rows, int mb_cols) { // TODO(JBB): double check we can't exceed this token count if we have a // 32x32 transform crossing a boundary at a multiple of 16. // mb_rows, cols are in units of 16 pixels. We assume 3 planes all at full // resolution. We assume up to 1 token per pixel, and then allow // a head room of 4. return mb_rows * mb_cols * (16 * 16 * 3 + 4); } // Get the allocated token size for a tile. It does the same calculation as in // the frame token allocation. static INLINE int allocated_tokens(TileInfo tile) { int tile_mb_rows = (tile.mi_row_end - tile.mi_row_start + 1) >> 1; int tile_mb_cols = (tile.mi_col_end - tile.mi_col_start + 1) >> 1; return get_token_alloc(tile_mb_rows, tile_mb_cols); } int64_t vp9_get_y_sse(const YV12_BUFFER_CONFIG *a, const YV12_BUFFER_CONFIG *b); #if CONFIG_VP9_HIGHBITDEPTH int64_t vp9_highbd_get_y_sse(const YV12_BUFFER_CONFIG *a, const YV12_BUFFER_CONFIG *b); #endif // CONFIG_VP9_HIGHBITDEPTH void vp9_scale_references(VP9_COMP *cpi); void vp9_update_reference_frames(VP9_COMP *cpi); void vp9_set_high_precision_mv(VP9_COMP *cpi, int allow_high_precision_mv); YV12_BUFFER_CONFIG *vp9_svc_twostage_scale(VP9_COMMON *cm, YV12_BUFFER_CONFIG *unscaled, YV12_BUFFER_CONFIG *scaled, YV12_BUFFER_CONFIG *scaled_temp); YV12_BUFFER_CONFIG *vp9_scale_if_required(VP9_COMMON *cm, YV12_BUFFER_CONFIG *unscaled, YV12_BUFFER_CONFIG *scaled, int use_normative_scaler); void vp9_apply_encoding_flags(VP9_COMP *cpi, vpx_enc_frame_flags_t flags); static INLINE int is_two_pass_svc(const struct VP9_COMP *const cpi) { return cpi->use_svc && cpi->oxcf.pass != 0; } static INLINE int is_one_pass_cbr_svc(const struct VP9_COMP *const cpi) { return (cpi->use_svc && cpi->oxcf.pass == 0); } static INLINE int is_altref_enabled(const VP9_COMP *const cpi) { return cpi->oxcf.mode != REALTIME && cpi->oxcf.lag_in_frames > 0 && (cpi->oxcf.enable_auto_arf && (!is_two_pass_svc(cpi) || cpi->oxcf.ss_enable_auto_arf[cpi->svc.spatial_layer_id])); } static INLINE void set_ref_ptrs(VP9_COMMON *cm, MACROBLOCKD *xd, MV_REFERENCE_FRAME ref0, MV_REFERENCE_FRAME ref1) { xd->block_refs[0] = &cm->frame_refs[ref0 >= LAST_FRAME ? ref0 - LAST_FRAME : 0]; xd->block_refs[1] = &cm->frame_refs[ref1 >= LAST_FRAME ? ref1 - LAST_FRAME : 0]; } static INLINE int get_chessboard_index(const int frame_index) { return frame_index & 0x1; } static INLINE int *cond_cost_list(const struct VP9_COMP *cpi, int *cost_list) { return cpi->sf.mv.subpel_search_method != SUBPEL_TREE ? cost_list : NULL; } VP9_LEVEL vp9_get_level(const Vp9LevelSpec *const level_spec); void vp9_new_framerate(VP9_COMP *cpi, double framerate); #define LAYER_IDS_TO_IDX(sl, tl, num_tl) ((sl) * (num_tl) + (tl)) #ifdef __cplusplus } // extern "C" #endif #endif // VP9_ENCODER_VP9_ENCODER_H_