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| -rw-r--r-- | third_party/aom/av1/common/onyxc_int.h | 1342 |
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diff --git a/third_party/aom/av1/common/onyxc_int.h b/third_party/aom/av1/common/onyxc_int.h new file mode 100644 index 0000000000..ff011c89e9 --- /dev/null +++ b/third_party/aom/av1/common/onyxc_int.h @@ -0,0 +1,1342 @@ +/* + * Copyright (c) 2016, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ + +#ifndef AOM_AV1_COMMON_ONYXC_INT_H_ +#define AOM_AV1_COMMON_ONYXC_INT_H_ + +#include "config/aom_config.h" +#include "config/av1_rtcd.h" + +#include "aom/internal/aom_codec_internal.h" +#include "aom_util/aom_thread.h" +#include "av1/common/alloccommon.h" +#include "av1/common/av1_loopfilter.h" +#include "av1/common/entropy.h" +#include "av1/common/entropymode.h" +#include "av1/common/entropymv.h" +#include "av1/common/enums.h" +#include "av1/common/frame_buffers.h" +#include "av1/common/mv.h" +#include "av1/common/quant_common.h" +#include "av1/common/restoration.h" +#include "av1/common/tile_common.h" +#include "av1/common/timing.h" +#include "av1/common/odintrin.h" +#include "av1/encoder/hash_motion.h" +#include "aom_dsp/grain_synthesis.h" +#include "aom_dsp/grain_table.h" +#ifdef __cplusplus +extern "C" { +#endif + +#if defined(__clang__) && defined(__has_warning) +#if __has_feature(cxx_attributes) && __has_warning("-Wimplicit-fallthrough") +#define AOM_FALLTHROUGH_INTENDED [[clang::fallthrough]] // NOLINT +#endif +#elif defined(__GNUC__) && __GNUC__ >= 7 +#define AOM_FALLTHROUGH_INTENDED __attribute__((fallthrough)) // NOLINT +#endif + +#ifndef AOM_FALLTHROUGH_INTENDED +#define AOM_FALLTHROUGH_INTENDED \ + do { \ + } while (0) +#endif + +#define CDEF_MAX_STRENGTHS 16 + +/* Constant values while waiting for the sequence header */ +#define FRAME_ID_LENGTH 15 +#define DELTA_FRAME_ID_LENGTH 14 + +#define FRAME_CONTEXTS (FRAME_BUFFERS + 1) +// Extra frame context which is always kept at default values +#define FRAME_CONTEXT_DEFAULTS (FRAME_CONTEXTS - 1) +#define PRIMARY_REF_BITS 3 +#define PRIMARY_REF_NONE 7 + +#define NUM_PING_PONG_BUFFERS 2 + +#define MAX_NUM_TEMPORAL_LAYERS 8 +#define MAX_NUM_SPATIAL_LAYERS 4 +/* clang-format off */ +// clang-format seems to think this is a pointer dereference and not a +// multiplication. +#define MAX_NUM_OPERATING_POINTS \ + MAX_NUM_TEMPORAL_LAYERS * MAX_NUM_SPATIAL_LAYERS +/* clang-format on*/ + +// TODO(jingning): Turning this on to set up transform coefficient +// processing timer. +#define TXCOEFF_TIMER 0 +#define TXCOEFF_COST_TIMER 0 + +typedef enum { + SINGLE_REFERENCE = 0, + COMPOUND_REFERENCE = 1, + REFERENCE_MODE_SELECT = 2, + REFERENCE_MODES = 3, +} REFERENCE_MODE; + +typedef enum { + /** + * Frame context updates are disabled + */ + REFRESH_FRAME_CONTEXT_DISABLED, + /** + * Update frame context to values resulting from backward probability + * updates based on entropy/counts in the decoded frame + */ + REFRESH_FRAME_CONTEXT_BACKWARD, +} REFRESH_FRAME_CONTEXT_MODE; + +#define MFMV_STACK_SIZE 3 +typedef struct { + int_mv mfmv0; + uint8_t ref_frame_offset; +} TPL_MV_REF; + +typedef struct { + int_mv mv; + MV_REFERENCE_FRAME ref_frame; +} MV_REF; + +typedef struct { + int ref_count; + + unsigned int cur_frame_offset; + unsigned int ref_frame_offset[INTER_REFS_PER_FRAME]; + + MV_REF *mvs; + uint8_t *seg_map; + struct segmentation seg; + int mi_rows; + int mi_cols; + // Width and height give the size of the buffer (before any upscaling, unlike + // the sizes that can be derived from the buf structure) + int width; + int height; + WarpedMotionParams global_motion[REF_FRAMES]; + int showable_frame; // frame can be used as show existing frame in future + int film_grain_params_present; + aom_film_grain_t film_grain_params; + aom_codec_frame_buffer_t raw_frame_buffer; + YV12_BUFFER_CONFIG buf; + hash_table hash_table; + uint8_t intra_only; + FRAME_TYPE frame_type; + // The Following variables will only be used in frame parallel decode. + + // frame_worker_owner indicates which FrameWorker owns this buffer. NULL means + // that no FrameWorker owns, or is decoding, this buffer. + AVxWorker *frame_worker_owner; + + // row and col indicate which position frame has been decoded to in real + // pixel unit. They are reset to -1 when decoding begins and set to INT_MAX + // when the frame is fully decoded. + int row; + int col; + + // Inter frame reference frame delta for loop filter + int8_t ref_deltas[REF_FRAMES]; + + // 0 = ZERO_MV, MV + int8_t mode_deltas[MAX_MODE_LF_DELTAS]; +} RefCntBuffer; + +typedef struct BufferPool { +// Protect BufferPool from being accessed by several FrameWorkers at +// the same time during frame parallel decode. +// TODO(hkuang): Try to use atomic variable instead of locking the whole pool. +#if CONFIG_MULTITHREAD + pthread_mutex_t pool_mutex; +#endif + + // Private data associated with the frame buffer callbacks. + void *cb_priv; + + aom_get_frame_buffer_cb_fn_t get_fb_cb; + aom_release_frame_buffer_cb_fn_t release_fb_cb; + + RefCntBuffer frame_bufs[FRAME_BUFFERS]; + + // Frame buffers allocated internally by the codec. + InternalFrameBufferList int_frame_buffers; +} BufferPool; + +typedef struct { + int base_ctx_table[2 /*row*/][2 /*col*/][3 /*sig_map*/] + [BASE_CONTEXT_POSITION_NUM + 1]; +} LV_MAP_CTX_TABLE; +typedef int BASE_CTX_TABLE[2 /*col*/][3 /*sig_map*/] + [BASE_CONTEXT_POSITION_NUM + 1]; + +typedef struct BitstreamLevel { + uint8_t major; + uint8_t minor; +} BitstreamLevel; + +// Sequence header structure. +// Note: All syntax elements of sequence_header_obu that need to be +// bit-identical across multiple sequence headers must be part of this struct, +// so that consistency is checked by are_seq_headers_consistent() function. +typedef struct SequenceHeader { + int num_bits_width; + int num_bits_height; + int max_frame_width; + int max_frame_height; + int frame_id_numbers_present_flag; + int frame_id_length; + int delta_frame_id_length; + BLOCK_SIZE sb_size; // Size of the superblock used for this frame + int mib_size; // Size of the superblock in units of MI blocks + int mib_size_log2; // Log 2 of above. + int order_hint_bits_minus_1; + int force_screen_content_tools; // 0 - force off + // 1 - force on + // 2 - adaptive + int force_integer_mv; // 0 - Not to force. MV can be in 1/4 or 1/8 + // 1 - force to integer + // 2 - adaptive + int still_picture; // Video is a single frame still picture + int reduced_still_picture_hdr; // Use reduced header for still picture + int enable_filter_intra; // enables/disables filterintra + int enable_intra_edge_filter; // enables/disables corner/edge/upsampling + int enable_interintra_compound; // enables/disables interintra_compound + int enable_masked_compound; // enables/disables masked compound + int enable_dual_filter; // 0 - disable dual interpolation filter + // 1 - enable vert/horiz filter selection + int enable_order_hint; // 0 - disable order hint, and related tools + // jnt_comp, ref_frame_mvs, frame_sign_bias + // if 0, enable_jnt_comp and + // enable_ref_frame_mvs must be set zs 0. + int enable_jnt_comp; // 0 - disable joint compound modes + // 1 - enable it + int enable_ref_frame_mvs; // 0 - disable ref frame mvs + // 1 - enable it + int enable_warped_motion; // 0 - disable warped motion for sequence + // 1 - enable it for the sequence + int enable_superres; // 0 - Disable superres for the sequence, and disable + // transmitting per-frame superres enabled flag. + // 1 - Enable superres for the sequence, and also + // enable per-frame flag to denote if superres is + // enabled for that frame. + int enable_cdef; // To turn on/off CDEF + int enable_restoration; // To turn on/off loop restoration + BITSTREAM_PROFILE profile; + + // Operating point info. + int operating_points_cnt_minus_1; + int operating_point_idc[MAX_NUM_OPERATING_POINTS]; + int display_model_info_present_flag; + int decoder_model_info_present_flag; + BitstreamLevel level[MAX_NUM_OPERATING_POINTS]; + uint8_t tier[MAX_NUM_OPERATING_POINTS]; // seq_tier in the spec. One bit: 0 + // or 1. + + // Color config. + aom_bit_depth_t bit_depth; // AOM_BITS_8 in profile 0 or 1, + // AOM_BITS_10 or AOM_BITS_12 in profile 2 or 3. + int use_highbitdepth; // If true, we need to use 16bit frame buffers. + int monochrome; // Monochorme video + aom_color_primaries_t color_primaries; + aom_transfer_characteristics_t transfer_characteristics; + aom_matrix_coefficients_t matrix_coefficients; + int color_range; + int subsampling_x; // Chroma subsampling for x + int subsampling_y; // Chroma subsampling for y + aom_chroma_sample_position_t chroma_sample_position; + int separate_uv_delta_q; + + int film_grain_params_present; +} SequenceHeader; + +typedef struct AV1Common { + struct aom_internal_error_info error; + int width; + int height; + int render_width; + int render_height; + int last_width; + int last_height; + int timing_info_present; + aom_timing_info_t timing_info; + int buffer_removal_time_present; + aom_dec_model_info_t buffer_model; + aom_dec_model_op_parameters_t op_params[MAX_NUM_OPERATING_POINTS + 1]; + aom_op_timing_info_t op_frame_timing[MAX_NUM_OPERATING_POINTS + 1]; + uint32_t frame_presentation_time; + + int largest_tile_id; + size_t largest_tile_size; + int context_update_tile_id; + + // Scale of the current frame with respect to itself. + struct scale_factors sf_identity; + + YV12_BUFFER_CONFIG *frame_to_show; + RefCntBuffer *prev_frame; + + // TODO(hkuang): Combine this with cur_buf in macroblockd. + RefCntBuffer *cur_frame; + + int ref_frame_map[REF_FRAMES]; /* maps fb_idx to reference slot */ + + // Prepare ref_frame_map for the next frame. + // Only used in frame parallel decode. + int next_ref_frame_map[REF_FRAMES]; + + // TODO(jkoleszar): could expand active_ref_idx to 4, with 0 as intra, and + // roll new_fb_idx into it. + + // Each Inter frame can reference INTER_REFS_PER_FRAME buffers + RefBuffer frame_refs[INTER_REFS_PER_FRAME]; + int is_skip_mode_allowed; + int skip_mode_flag; + int ref_frame_idx_0; + int ref_frame_idx_1; + + int new_fb_idx; + + FRAME_TYPE last_frame_type; /* last frame's frame type for motion search.*/ + FRAME_TYPE frame_type; + + int show_frame; + int showable_frame; // frame can be used as show existing frame in future + int last_show_frame; + int show_existing_frame; + // Flag for a frame used as a reference - not written to the bitstream + int is_reference_frame; + int reset_decoder_state; + + // Flag signaling that the frame is encoded using only INTRA modes. + uint8_t intra_only; + uint8_t last_intra_only; + uint8_t disable_cdf_update; + int allow_high_precision_mv; + int cur_frame_force_integer_mv; // 0 the default in AOM, 1 only integer + + int allow_screen_content_tools; + int allow_intrabc; + int allow_warped_motion; + + // MBs, mb_rows/cols is in 16-pixel units; mi_rows/cols is in + // MB_MODE_INFO (8-pixel) units. + int MBs; + int mb_rows, mi_rows; + int mb_cols, mi_cols; + int mi_stride; + + /* profile settings */ + TX_MODE tx_mode; + +#if CONFIG_ENTROPY_STATS + int coef_cdf_category; +#endif + + int base_qindex; + int y_dc_delta_q; + int u_dc_delta_q; + int v_dc_delta_q; + int u_ac_delta_q; + int v_ac_delta_q; + + // The dequantizers below are true dequntizers used only in the + // dequantization process. They have the same coefficient + // shift/scale as TX. + int16_t y_dequant_QTX[MAX_SEGMENTS][2]; + int16_t u_dequant_QTX[MAX_SEGMENTS][2]; + int16_t v_dequant_QTX[MAX_SEGMENTS][2]; + + // Global quant matrix tables + const qm_val_t *giqmatrix[NUM_QM_LEVELS][3][TX_SIZES_ALL]; + const qm_val_t *gqmatrix[NUM_QM_LEVELS][3][TX_SIZES_ALL]; + + // Local quant matrix tables for each frame + const qm_val_t *y_iqmatrix[MAX_SEGMENTS][TX_SIZES_ALL]; + const qm_val_t *u_iqmatrix[MAX_SEGMENTS][TX_SIZES_ALL]; + const qm_val_t *v_iqmatrix[MAX_SEGMENTS][TX_SIZES_ALL]; + + // Encoder + int using_qmatrix; + int qm_y; + int qm_u; + int qm_v; + int min_qmlevel; + int max_qmlevel; + + /* We allocate a MB_MODE_INFO struct for each macroblock, together with + an extra row on top and column on the left to simplify prediction. */ + int mi_alloc_size; + MB_MODE_INFO *mip; /* Base of allocated array */ + MB_MODE_INFO *mi; /* Corresponds to upper left visible macroblock */ + + // TODO(agrange): Move prev_mi into encoder structure. + // prev_mip and prev_mi will only be allocated in encoder. + MB_MODE_INFO *prev_mip; /* MB_MODE_INFO array 'mip' from last decoded frame */ + MB_MODE_INFO *prev_mi; /* 'mi' from last frame (points into prev_mip) */ + + // Separate mi functions between encoder and decoder. + int (*alloc_mi)(struct AV1Common *cm, int mi_size); + void (*free_mi)(struct AV1Common *cm); + void (*setup_mi)(struct AV1Common *cm); + + // Grid of pointers to 8x8 MB_MODE_INFO structs. Any 8x8 not in the visible + // area will be NULL. + MB_MODE_INFO **mi_grid_base; + MB_MODE_INFO **mi_grid_visible; + MB_MODE_INFO **prev_mi_grid_base; + MB_MODE_INFO **prev_mi_grid_visible; + + // Whether to use previous frames' motion vectors for prediction. + int allow_ref_frame_mvs; + + uint8_t *last_frame_seg_map; + uint8_t *current_frame_seg_map; + int seg_map_alloc_size; + + InterpFilter interp_filter; + + int switchable_motion_mode; + + loop_filter_info_n lf_info; + // The denominator of the superres scale; the numerator is fixed. + uint8_t superres_scale_denominator; + int superres_upscaled_width; + int superres_upscaled_height; + RestorationInfo rst_info[MAX_MB_PLANE]; + + // rst_end_stripe[i] is one more than the index of the bottom stripe + // for tile row i. + int rst_end_stripe[MAX_TILE_ROWS]; + + // Pointer to a scratch buffer used by self-guided restoration + int32_t *rst_tmpbuf; + RestorationLineBuffers *rlbs; + + // Output of loop restoration + YV12_BUFFER_CONFIG rst_frame; + + // Flag signaling how frame contexts should be updated at the end of + // a frame decode + REFRESH_FRAME_CONTEXT_MODE refresh_frame_context; + + int ref_frame_sign_bias[REF_FRAMES]; /* Two state 0, 1 */ + + struct loopfilter lf; + struct segmentation seg; + int coded_lossless; // frame is fully lossless at the coded resolution. + int all_lossless; // frame is fully lossless at the upscaled resolution. + + int reduced_tx_set_used; + + // Context probabilities for reference frame prediction + MV_REFERENCE_FRAME comp_fwd_ref[FWD_REFS]; + MV_REFERENCE_FRAME comp_bwd_ref[BWD_REFS]; + REFERENCE_MODE reference_mode; + + FRAME_CONTEXT *fc; /* this frame entropy */ + FRAME_CONTEXT *frame_contexts; // FRAME_CONTEXTS + unsigned int frame_context_idx; /* Context to use/update */ + int fb_of_context_type[REF_FRAMES]; + int primary_ref_frame; + + unsigned int frame_offset; + + unsigned int current_video_frame; + + aom_bit_depth_t dequant_bit_depth; // bit_depth of current dequantizer + + int error_resilient_mode; + int force_primary_ref_none; + + int tile_cols, tile_rows; + int last_tile_cols, last_tile_rows; + + int max_tile_width_sb; + int min_log2_tile_cols; + int max_log2_tile_cols; + int max_log2_tile_rows; + int min_log2_tile_rows; + int min_log2_tiles; + int max_tile_height_sb; + int uniform_tile_spacing_flag; + int log2_tile_cols; // only valid for uniform tiles + int log2_tile_rows; // only valid for uniform tiles + int tile_col_start_sb[MAX_TILE_COLS + 1]; // valid for 0 <= i <= tile_cols + int tile_row_start_sb[MAX_TILE_ROWS + 1]; // valid for 0 <= i <= tile_rows + int tile_width, tile_height; // In MI units + + unsigned int large_scale_tile; + unsigned int single_tile_decoding; + + int byte_alignment; + int skip_loop_filter; + int skip_film_grain; + + // Private data associated with the frame buffer callbacks. + void *cb_priv; + aom_get_frame_buffer_cb_fn_t get_fb_cb; + aom_release_frame_buffer_cb_fn_t release_fb_cb; + + // Handles memory for the codec. + InternalFrameBufferList int_frame_buffers; + + // External BufferPool passed from outside. + BufferPool *buffer_pool; + + PARTITION_CONTEXT **above_seg_context; + ENTROPY_CONTEXT **above_context[MAX_MB_PLANE]; + TXFM_CONTEXT **above_txfm_context; + WarpedMotionParams global_motion[REF_FRAMES]; + aom_film_grain_t film_grain_params; + + int cdef_pri_damping; + int cdef_sec_damping; + int nb_cdef_strengths; + int cdef_strengths[CDEF_MAX_STRENGTHS]; + int cdef_uv_strengths[CDEF_MAX_STRENGTHS]; + int cdef_bits; + + int delta_q_present_flag; + // Resolution of delta quant + int delta_q_res; + int delta_lf_present_flag; + // Resolution of delta lf level + int delta_lf_res; + // This is a flag for number of deltas of loop filter level + // 0: use 1 delta, for y_vertical, y_horizontal, u, and v + // 1: use separate deltas for each filter level + int delta_lf_multi; + int num_tg; + SequenceHeader seq_params; + int current_frame_id; + int ref_frame_id[REF_FRAMES]; + int valid_for_referencing[REF_FRAMES]; + int invalid_delta_frame_id_minus_1; + LV_MAP_CTX_TABLE coeff_ctx_table; + TPL_MV_REF *tpl_mvs; + int tpl_mvs_mem_size; + // TODO(jingning): This can be combined with sign_bias later. + int8_t ref_frame_side[REF_FRAMES]; + + int is_annexb; + + int frame_refs_short_signaling; + int temporal_layer_id; + int spatial_layer_id; + unsigned int number_temporal_layers; + unsigned int number_spatial_layers; + int num_allocated_above_context_mi_col; + int num_allocated_above_contexts; + int num_allocated_above_context_planes; + +#if TXCOEFF_TIMER + int64_t cum_txcoeff_timer; + int64_t txcoeff_timer; + int txb_count; +#endif + +#if TXCOEFF_COST_TIMER + int64_t cum_txcoeff_cost_timer; + int64_t txcoeff_cost_timer; + int64_t txcoeff_cost_count; +#endif + const cfg_options_t *options; +} AV1_COMMON; + +// TODO(hkuang): Don't need to lock the whole pool after implementing atomic +// frame reference count. +static void lock_buffer_pool(BufferPool *const pool) { +#if CONFIG_MULTITHREAD + pthread_mutex_lock(&pool->pool_mutex); +#else + (void)pool; +#endif +} + +static void unlock_buffer_pool(BufferPool *const pool) { +#if CONFIG_MULTITHREAD + pthread_mutex_unlock(&pool->pool_mutex); +#else + (void)pool; +#endif +} + +static INLINE YV12_BUFFER_CONFIG *get_ref_frame(AV1_COMMON *cm, int index) { + if (index < 0 || index >= REF_FRAMES) return NULL; + if (cm->ref_frame_map[index] < 0) return NULL; + assert(cm->ref_frame_map[index] < FRAME_BUFFERS); + return &cm->buffer_pool->frame_bufs[cm->ref_frame_map[index]].buf; +} + +static INLINE YV12_BUFFER_CONFIG *get_frame_new_buffer( + const AV1_COMMON *const cm) { + return &cm->buffer_pool->frame_bufs[cm->new_fb_idx].buf; +} + +static INLINE int get_free_fb(AV1_COMMON *cm) { + RefCntBuffer *const frame_bufs = cm->buffer_pool->frame_bufs; + int i; + + lock_buffer_pool(cm->buffer_pool); + for (i = 0; i < FRAME_BUFFERS; ++i) + if (frame_bufs[i].ref_count == 0) break; + + if (i != FRAME_BUFFERS) { + if (frame_bufs[i].buf.use_external_reference_buffers) { + // If this frame buffer's y_buffer, u_buffer, and v_buffer point to the + // external reference buffers. Restore the buffer pointers to point to the + // internally allocated memory. + YV12_BUFFER_CONFIG *ybf = &frame_bufs[i].buf; + ybf->y_buffer = ybf->store_buf_adr[0]; + ybf->u_buffer = ybf->store_buf_adr[1]; + ybf->v_buffer = ybf->store_buf_adr[2]; + ybf->use_external_reference_buffers = 0; + } + + frame_bufs[i].ref_count = 1; + } else { + // Reset i to be INVALID_IDX to indicate no free buffer found. + i = INVALID_IDX; + } + + unlock_buffer_pool(cm->buffer_pool); + return i; +} + +static INLINE void ref_cnt_fb(RefCntBuffer *bufs, int *idx, int new_idx) { + const int ref_index = *idx; + + if (ref_index >= 0 && bufs[ref_index].ref_count > 0) + bufs[ref_index].ref_count--; + + *idx = new_idx; + + bufs[new_idx].ref_count++; +} + +static INLINE int frame_is_intra_only(const AV1_COMMON *const cm) { + return cm->frame_type == KEY_FRAME || cm->intra_only; +} + +static INLINE int frame_is_sframe(const AV1_COMMON *cm) { + return cm->frame_type == S_FRAME; +} + +static INLINE RefCntBuffer *get_prev_frame(const AV1_COMMON *const cm) { + if (cm->primary_ref_frame == PRIMARY_REF_NONE || + cm->frame_refs[cm->primary_ref_frame].idx == INVALID_IDX) { + return NULL; + } else { + return &cm->buffer_pool + ->frame_bufs[cm->frame_refs[cm->primary_ref_frame].idx]; + } +} + +// Returns 1 if this frame might allow mvs from some reference frame. +static INLINE int frame_might_allow_ref_frame_mvs(const AV1_COMMON *cm) { + return !cm->error_resilient_mode && cm->seq_params.enable_ref_frame_mvs && + cm->seq_params.enable_order_hint && !frame_is_intra_only(cm); +} + +// Returns 1 if this frame might use warped_motion +static INLINE int frame_might_allow_warped_motion(const AV1_COMMON *cm) { + return !cm->error_resilient_mode && !frame_is_intra_only(cm) && + cm->seq_params.enable_warped_motion; +} + +static INLINE void ensure_mv_buffer(RefCntBuffer *buf, AV1_COMMON *cm) { + const int buf_rows = buf->mi_rows; + const int buf_cols = buf->mi_cols; + + if (buf->mvs == NULL || buf_rows != cm->mi_rows || buf_cols != cm->mi_cols) { + aom_free(buf->mvs); + buf->mi_rows = cm->mi_rows; + buf->mi_cols = cm->mi_cols; + CHECK_MEM_ERROR(cm, buf->mvs, + (MV_REF *)aom_calloc( + ((cm->mi_rows + 1) >> 1) * ((cm->mi_cols + 1) >> 1), + sizeof(*buf->mvs))); + aom_free(buf->seg_map); + CHECK_MEM_ERROR(cm, buf->seg_map, + (uint8_t *)aom_calloc(cm->mi_rows * cm->mi_cols, + sizeof(*buf->seg_map))); + } + + const int mem_size = + ((cm->mi_rows + MAX_MIB_SIZE) >> 1) * (cm->mi_stride >> 1); + int realloc = cm->tpl_mvs == NULL; + if (cm->tpl_mvs) realloc |= cm->tpl_mvs_mem_size < mem_size; + + if (realloc) { + aom_free(cm->tpl_mvs); + CHECK_MEM_ERROR(cm, cm->tpl_mvs, + (TPL_MV_REF *)aom_calloc(mem_size, sizeof(*cm->tpl_mvs))); + cm->tpl_mvs_mem_size = mem_size; + } +} + +void cfl_init(CFL_CTX *cfl, const SequenceHeader *seq_params); + +static INLINE int av1_num_planes(const AV1_COMMON *cm) { + return cm->seq_params.monochrome ? 1 : MAX_MB_PLANE; +} + +static INLINE void av1_init_above_context(AV1_COMMON *cm, MACROBLOCKD *xd, + const int tile_row) { + const int num_planes = av1_num_planes(cm); + for (int i = 0; i < num_planes; ++i) { + xd->above_context[i] = cm->above_context[i][tile_row]; + } + xd->above_seg_context = cm->above_seg_context[tile_row]; + xd->above_txfm_context = cm->above_txfm_context[tile_row]; +} + +static INLINE void av1_init_macroblockd(AV1_COMMON *cm, MACROBLOCKD *xd, + tran_low_t *dqcoeff) { + const int num_planes = av1_num_planes(cm); + for (int i = 0; i < num_planes; ++i) { + xd->plane[i].dqcoeff = dqcoeff; + + if (xd->plane[i].plane_type == PLANE_TYPE_Y) { + memcpy(xd->plane[i].seg_dequant_QTX, cm->y_dequant_QTX, + sizeof(cm->y_dequant_QTX)); + memcpy(xd->plane[i].seg_iqmatrix, cm->y_iqmatrix, sizeof(cm->y_iqmatrix)); + + } else { + if (i == AOM_PLANE_U) { + memcpy(xd->plane[i].seg_dequant_QTX, cm->u_dequant_QTX, + sizeof(cm->u_dequant_QTX)); + memcpy(xd->plane[i].seg_iqmatrix, cm->u_iqmatrix, + sizeof(cm->u_iqmatrix)); + } else { + memcpy(xd->plane[i].seg_dequant_QTX, cm->v_dequant_QTX, + sizeof(cm->v_dequant_QTX)); + memcpy(xd->plane[i].seg_iqmatrix, cm->v_iqmatrix, + sizeof(cm->v_iqmatrix)); + } + } + } + xd->mi_stride = cm->mi_stride; + xd->error_info = &cm->error; + cfl_init(&xd->cfl, &cm->seq_params); +} + +static INLINE void set_skip_context(MACROBLOCKD *xd, int mi_row, int mi_col, + const int num_planes) { + int i; + int row_offset = mi_row; + int col_offset = mi_col; + for (i = 0; i < num_planes; ++i) { + struct macroblockd_plane *const pd = &xd->plane[i]; + // Offset the buffer pointer + const BLOCK_SIZE bsize = xd->mi[0]->sb_type; + if (pd->subsampling_y && (mi_row & 0x01) && (mi_size_high[bsize] == 1)) + row_offset = mi_row - 1; + if (pd->subsampling_x && (mi_col & 0x01) && (mi_size_wide[bsize] == 1)) + col_offset = mi_col - 1; + int above_idx = col_offset; + int left_idx = row_offset & MAX_MIB_MASK; + pd->above_context = &xd->above_context[i][above_idx >> pd->subsampling_x]; + pd->left_context = &xd->left_context[i][left_idx >> pd->subsampling_y]; + } +} + +static INLINE int calc_mi_size(int len) { + // len is in mi units. Align to a multiple of SBs. + return ALIGN_POWER_OF_TWO(len, MAX_MIB_SIZE_LOG2); +} + +static INLINE void set_plane_n4(MACROBLOCKD *const xd, int bw, int bh, + const int num_planes) { + int i; + for (i = 0; i < num_planes; i++) { + xd->plane[i].width = (bw * MI_SIZE) >> xd->plane[i].subsampling_x; + xd->plane[i].height = (bh * MI_SIZE) >> xd->plane[i].subsampling_y; + + xd->plane[i].width = AOMMAX(xd->plane[i].width, 4); + xd->plane[i].height = AOMMAX(xd->plane[i].height, 4); + } +} + +static INLINE void set_mi_row_col(MACROBLOCKD *xd, const TileInfo *const tile, + int mi_row, int bh, int mi_col, int bw, + int mi_rows, int mi_cols) { + xd->mb_to_top_edge = -((mi_row * MI_SIZE) * 8); + xd->mb_to_bottom_edge = ((mi_rows - bh - mi_row) * MI_SIZE) * 8; + xd->mb_to_left_edge = -((mi_col * MI_SIZE) * 8); + xd->mb_to_right_edge = ((mi_cols - bw - mi_col) * MI_SIZE) * 8; + + // Are edges available for intra prediction? + xd->up_available = (mi_row > tile->mi_row_start); + + const int ss_x = xd->plane[1].subsampling_x; + const int ss_y = xd->plane[1].subsampling_y; + + xd->left_available = (mi_col > tile->mi_col_start); + xd->chroma_up_available = xd->up_available; + xd->chroma_left_available = xd->left_available; + if (ss_x && bw < mi_size_wide[BLOCK_8X8]) + xd->chroma_left_available = (mi_col - 1) > tile->mi_col_start; + if (ss_y && bh < mi_size_high[BLOCK_8X8]) + xd->chroma_up_available = (mi_row - 1) > tile->mi_row_start; + if (xd->up_available) { + xd->above_mbmi = xd->mi[-xd->mi_stride]; + } else { + xd->above_mbmi = NULL; + } + + if (xd->left_available) { + xd->left_mbmi = xd->mi[-1]; + } else { + xd->left_mbmi = NULL; + } + + const int chroma_ref = ((mi_row & 0x01) || !(bh & 0x01) || !ss_y) && + ((mi_col & 0x01) || !(bw & 0x01) || !ss_x); + if (chroma_ref) { + // To help calculate the "above" and "left" chroma blocks, note that the + // current block may cover multiple luma blocks (eg, if partitioned into + // 4x4 luma blocks). + // First, find the top-left-most luma block covered by this chroma block + MB_MODE_INFO **base_mi = + &xd->mi[-(mi_row & ss_y) * xd->mi_stride - (mi_col & ss_x)]; + + // Then, we consider the luma region covered by the left or above 4x4 chroma + // prediction. We want to point to the chroma reference block in that + // region, which is the bottom-right-most mi unit. + // This leads to the following offsets: + MB_MODE_INFO *chroma_above_mi = + xd->chroma_up_available ? base_mi[-xd->mi_stride + ss_x] : NULL; + xd->chroma_above_mbmi = chroma_above_mi; + + MB_MODE_INFO *chroma_left_mi = + xd->chroma_left_available ? base_mi[ss_y * xd->mi_stride - 1] : NULL; + xd->chroma_left_mbmi = chroma_left_mi; + } + + xd->n4_h = bh; + xd->n4_w = bw; + xd->is_sec_rect = 0; + if (xd->n4_w < xd->n4_h) { + // Only mark is_sec_rect as 1 for the last block. + // For PARTITION_VERT_4, it would be (0, 0, 0, 1); + // For other partitions, it would be (0, 1). + if (!((mi_col + xd->n4_w) & (xd->n4_h - 1))) xd->is_sec_rect = 1; + } + + if (xd->n4_w > xd->n4_h) + if (mi_row & (xd->n4_w - 1)) xd->is_sec_rect = 1; +} + +static INLINE aom_cdf_prob *get_y_mode_cdf(FRAME_CONTEXT *tile_ctx, + const MB_MODE_INFO *above_mi, + const MB_MODE_INFO *left_mi) { + const PREDICTION_MODE above = av1_above_block_mode(above_mi); + const PREDICTION_MODE left = av1_left_block_mode(left_mi); + const int above_ctx = intra_mode_context[above]; + const int left_ctx = intra_mode_context[left]; + return tile_ctx->kf_y_cdf[above_ctx][left_ctx]; +} + +static INLINE void update_partition_context(MACROBLOCKD *xd, int mi_row, + int mi_col, BLOCK_SIZE subsize, + BLOCK_SIZE bsize) { + PARTITION_CONTEXT *const above_ctx = xd->above_seg_context + mi_col; + PARTITION_CONTEXT *const left_ctx = + xd->left_seg_context + (mi_row & MAX_MIB_MASK); + + const int bw = mi_size_wide[bsize]; + const int bh = mi_size_high[bsize]; + memset(above_ctx, partition_context_lookup[subsize].above, bw); + memset(left_ctx, partition_context_lookup[subsize].left, bh); +} + +static INLINE int is_chroma_reference(int mi_row, int mi_col, BLOCK_SIZE bsize, + int subsampling_x, int subsampling_y) { + const int bw = mi_size_wide[bsize]; + const int bh = mi_size_high[bsize]; + int ref_pos = ((mi_row & 0x01) || !(bh & 0x01) || !subsampling_y) && + ((mi_col & 0x01) || !(bw & 0x01) || !subsampling_x); + return ref_pos; +} + +static INLINE BLOCK_SIZE scale_chroma_bsize(BLOCK_SIZE bsize, int subsampling_x, + int subsampling_y) { + BLOCK_SIZE bs = bsize; + switch (bsize) { + case BLOCK_4X4: + if (subsampling_x == 1 && subsampling_y == 1) + bs = BLOCK_8X8; + else if (subsampling_x == 1) + bs = BLOCK_8X4; + else if (subsampling_y == 1) + bs = BLOCK_4X8; + break; + case BLOCK_4X8: + if (subsampling_x == 1 && subsampling_y == 1) + bs = BLOCK_8X8; + else if (subsampling_x == 1) + bs = BLOCK_8X8; + else if (subsampling_y == 1) + bs = BLOCK_4X8; + break; + case BLOCK_8X4: + if (subsampling_x == 1 && subsampling_y == 1) + bs = BLOCK_8X8; + else if (subsampling_x == 1) + bs = BLOCK_8X4; + else if (subsampling_y == 1) + bs = BLOCK_8X8; + break; + case BLOCK_4X16: + if (subsampling_x == 1 && subsampling_y == 1) + bs = BLOCK_8X16; + else if (subsampling_x == 1) + bs = BLOCK_8X16; + else if (subsampling_y == 1) + bs = BLOCK_4X16; + break; + case BLOCK_16X4: + if (subsampling_x == 1 && subsampling_y == 1) + bs = BLOCK_16X8; + else if (subsampling_x == 1) + bs = BLOCK_16X4; + else if (subsampling_y == 1) + bs = BLOCK_16X8; + break; + default: break; + } + return bs; +} + +static INLINE aom_cdf_prob cdf_element_prob(const aom_cdf_prob *cdf, + size_t element) { + assert(cdf != NULL); + return (element > 0 ? cdf[element - 1] : CDF_PROB_TOP) - cdf[element]; +} + +static INLINE void partition_gather_horz_alike(aom_cdf_prob *out, + const aom_cdf_prob *const in, + BLOCK_SIZE bsize) { + (void)bsize; + out[0] = CDF_PROB_TOP; + out[0] -= cdf_element_prob(in, PARTITION_HORZ); + out[0] -= cdf_element_prob(in, PARTITION_SPLIT); + out[0] -= cdf_element_prob(in, PARTITION_HORZ_A); + out[0] -= cdf_element_prob(in, PARTITION_HORZ_B); + out[0] -= cdf_element_prob(in, PARTITION_VERT_A); + if (bsize != BLOCK_128X128) out[0] -= cdf_element_prob(in, PARTITION_HORZ_4); + out[0] = AOM_ICDF(out[0]); + out[1] = AOM_ICDF(CDF_PROB_TOP); +} + +static INLINE void partition_gather_vert_alike(aom_cdf_prob *out, + const aom_cdf_prob *const in, + BLOCK_SIZE bsize) { + (void)bsize; + out[0] = CDF_PROB_TOP; + out[0] -= cdf_element_prob(in, PARTITION_VERT); + out[0] -= cdf_element_prob(in, PARTITION_SPLIT); + out[0] -= cdf_element_prob(in, PARTITION_HORZ_A); + out[0] -= cdf_element_prob(in, PARTITION_VERT_A); + out[0] -= cdf_element_prob(in, PARTITION_VERT_B); + if (bsize != BLOCK_128X128) out[0] -= cdf_element_prob(in, PARTITION_VERT_4); + out[0] = AOM_ICDF(out[0]); + out[1] = AOM_ICDF(CDF_PROB_TOP); +} + +static INLINE void update_ext_partition_context(MACROBLOCKD *xd, int mi_row, + int mi_col, BLOCK_SIZE subsize, + BLOCK_SIZE bsize, + PARTITION_TYPE partition) { + if (bsize >= BLOCK_8X8) { + const int hbs = mi_size_wide[bsize] / 2; + BLOCK_SIZE bsize2 = get_partition_subsize(bsize, PARTITION_SPLIT); + switch (partition) { + case PARTITION_SPLIT: + if (bsize != BLOCK_8X8) break; + AOM_FALLTHROUGH_INTENDED; + case PARTITION_NONE: + case PARTITION_HORZ: + case PARTITION_VERT: + case PARTITION_HORZ_4: + case PARTITION_VERT_4: + update_partition_context(xd, mi_row, mi_col, subsize, bsize); + break; + case PARTITION_HORZ_A: + update_partition_context(xd, mi_row, mi_col, bsize2, subsize); + update_partition_context(xd, mi_row + hbs, mi_col, subsize, subsize); + break; + case PARTITION_HORZ_B: + update_partition_context(xd, mi_row, mi_col, subsize, subsize); + update_partition_context(xd, mi_row + hbs, mi_col, bsize2, subsize); + break; + case PARTITION_VERT_A: + update_partition_context(xd, mi_row, mi_col, bsize2, subsize); + update_partition_context(xd, mi_row, mi_col + hbs, subsize, subsize); + break; + case PARTITION_VERT_B: + update_partition_context(xd, mi_row, mi_col, subsize, subsize); + update_partition_context(xd, mi_row, mi_col + hbs, bsize2, subsize); + break; + default: assert(0 && "Invalid partition type"); + } + } +} + +static INLINE int partition_plane_context(const MACROBLOCKD *xd, int mi_row, + int mi_col, BLOCK_SIZE bsize) { + const PARTITION_CONTEXT *above_ctx = xd->above_seg_context + mi_col; + const PARTITION_CONTEXT *left_ctx = + xd->left_seg_context + (mi_row & MAX_MIB_MASK); + // Minimum partition point is 8x8. Offset the bsl accordingly. + const int bsl = mi_size_wide_log2[bsize] - mi_size_wide_log2[BLOCK_8X8]; + int above = (*above_ctx >> bsl) & 1, left = (*left_ctx >> bsl) & 1; + + assert(mi_size_wide_log2[bsize] == mi_size_high_log2[bsize]); + assert(bsl >= 0); + + return (left * 2 + above) + bsl * PARTITION_PLOFFSET; +} + +// Return the number of elements in the partition CDF when +// partitioning the (square) block with luma block size of bsize. +static INLINE int partition_cdf_length(BLOCK_SIZE bsize) { + if (bsize <= BLOCK_8X8) + return PARTITION_TYPES; + else if (bsize == BLOCK_128X128) + return EXT_PARTITION_TYPES - 2; + else + return EXT_PARTITION_TYPES; +} + +static INLINE int max_block_wide(const MACROBLOCKD *xd, BLOCK_SIZE bsize, + int plane) { + int max_blocks_wide = block_size_wide[bsize]; + const struct macroblockd_plane *const pd = &xd->plane[plane]; + + if (xd->mb_to_right_edge < 0) + max_blocks_wide += xd->mb_to_right_edge >> (3 + pd->subsampling_x); + + // Scale the width in the transform block unit. + return max_blocks_wide >> tx_size_wide_log2[0]; +} + +static INLINE int max_block_high(const MACROBLOCKD *xd, BLOCK_SIZE bsize, + int plane) { + int max_blocks_high = block_size_high[bsize]; + const struct macroblockd_plane *const pd = &xd->plane[plane]; + + if (xd->mb_to_bottom_edge < 0) + max_blocks_high += xd->mb_to_bottom_edge >> (3 + pd->subsampling_y); + + // Scale the height in the transform block unit. + return max_blocks_high >> tx_size_high_log2[0]; +} + +static INLINE int max_intra_block_width(const MACROBLOCKD *xd, + BLOCK_SIZE plane_bsize, int plane, + TX_SIZE tx_size) { + const int max_blocks_wide = max_block_wide(xd, plane_bsize, plane) + << tx_size_wide_log2[0]; + return ALIGN_POWER_OF_TWO(max_blocks_wide, tx_size_wide_log2[tx_size]); +} + +static INLINE int max_intra_block_height(const MACROBLOCKD *xd, + BLOCK_SIZE plane_bsize, int plane, + TX_SIZE tx_size) { + const int max_blocks_high = max_block_high(xd, plane_bsize, plane) + << tx_size_high_log2[0]; + return ALIGN_POWER_OF_TWO(max_blocks_high, tx_size_high_log2[tx_size]); +} + +static INLINE void av1_zero_above_context(AV1_COMMON *const cm, const MACROBLOCKD *xd, + int mi_col_start, int mi_col_end, const int tile_row) { + const SequenceHeader *const seq_params = &cm->seq_params; + const int num_planes = av1_num_planes(cm); + const int width = mi_col_end - mi_col_start; + const int aligned_width = + ALIGN_POWER_OF_TWO(width, seq_params->mib_size_log2); + + const int offset_y = mi_col_start; + const int width_y = aligned_width; + const int offset_uv = offset_y >> seq_params->subsampling_x; + const int width_uv = width_y >> seq_params->subsampling_x; + + av1_zero_array(cm->above_context[0][tile_row] + offset_y, width_y); + if (num_planes > 1) { + if (cm->above_context[1][tile_row] && cm->above_context[2][tile_row]) { + av1_zero_array(cm->above_context[1][tile_row] + offset_uv, width_uv); + av1_zero_array(cm->above_context[2][tile_row] + offset_uv, width_uv); + } else { + aom_internal_error(xd->error_info, AOM_CODEC_CORRUPT_FRAME, + "Invalid value of planes"); + } + } + + av1_zero_array(cm->above_seg_context[tile_row] + mi_col_start, aligned_width); + + memset(cm->above_txfm_context[tile_row] + mi_col_start, + tx_size_wide[TX_SIZES_LARGEST], + aligned_width * sizeof(TXFM_CONTEXT)); +} + +static INLINE void av1_zero_left_context(MACROBLOCKD *const xd) { + av1_zero(xd->left_context); + av1_zero(xd->left_seg_context); + + memset(xd->left_txfm_context_buffer, tx_size_high[TX_SIZES_LARGEST], + sizeof(xd->left_txfm_context_buffer)); +} + +// Disable array-bounds checks as the TX_SIZE enum contains values larger than +// TX_SIZES_ALL (TX_INVALID) which make extending the array as a workaround +// infeasible. The assert is enough for static analysis and this or other tools +// asan, valgrind would catch oob access at runtime. +#if defined(__GNUC__) && __GNUC__ >= 4 +#pragma GCC diagnostic ignored "-Warray-bounds" +#endif + +#if defined(__GNUC__) && __GNUC__ >= 4 +#pragma GCC diagnostic warning "-Warray-bounds" +#endif + +static INLINE void set_txfm_ctx(TXFM_CONTEXT *txfm_ctx, uint8_t txs, int len) { + int i; + for (i = 0; i < len; ++i) txfm_ctx[i] = txs; +} + +static INLINE void set_txfm_ctxs(TX_SIZE tx_size, int n4_w, int n4_h, int skip, + const MACROBLOCKD *xd) { + uint8_t bw = tx_size_wide[tx_size]; + uint8_t bh = tx_size_high[tx_size]; + + if (skip) { + bw = n4_w * MI_SIZE; + bh = n4_h * MI_SIZE; + } + + set_txfm_ctx(xd->above_txfm_context, bw, n4_w); + set_txfm_ctx(xd->left_txfm_context, bh, n4_h); +} + +static INLINE void txfm_partition_update(TXFM_CONTEXT *above_ctx, + TXFM_CONTEXT *left_ctx, + TX_SIZE tx_size, TX_SIZE txb_size) { + BLOCK_SIZE bsize = txsize_to_bsize[txb_size]; + int bh = mi_size_high[bsize]; + int bw = mi_size_wide[bsize]; + uint8_t txw = tx_size_wide[tx_size]; + uint8_t txh = tx_size_high[tx_size]; + int i; + for (i = 0; i < bh; ++i) left_ctx[i] = txh; + for (i = 0; i < bw; ++i) above_ctx[i] = txw; +} + +static INLINE TX_SIZE get_sqr_tx_size(int tx_dim) { + switch (tx_dim) { + case 128: + case 64: return TX_64X64; break; + case 32: return TX_32X32; break; + case 16: return TX_16X16; break; + case 8: return TX_8X8; break; + default: return TX_4X4; + } +} + +static INLINE TX_SIZE get_tx_size(int width, int height) { + if (width == height) { + return get_sqr_tx_size(width); + } + if (width < height) { + if (width + width == height) { + switch (width) { + case 4: return TX_4X8; break; + case 8: return TX_8X16; break; + case 16: return TX_16X32; break; + case 32: return TX_32X64; break; + } + } else { + switch (width) { + case 4: return TX_4X16; break; + case 8: return TX_8X32; break; + case 16: return TX_16X64; break; + } + } + } else { + if (height + height == width) { + switch (height) { + case 4: return TX_8X4; break; + case 8: return TX_16X8; break; + case 16: return TX_32X16; break; + case 32: return TX_64X32; break; + } + } else { + switch (height) { + case 4: return TX_16X4; break; + case 8: return TX_32X8; break; + case 16: return TX_64X16; break; + } + } + } + assert(0); + return TX_4X4; +} + +static INLINE int txfm_partition_context(TXFM_CONTEXT *above_ctx, + TXFM_CONTEXT *left_ctx, + BLOCK_SIZE bsize, TX_SIZE tx_size) { + const uint8_t txw = tx_size_wide[tx_size]; + const uint8_t txh = tx_size_high[tx_size]; + const int above = *above_ctx < txw; + const int left = *left_ctx < txh; + int category = TXFM_PARTITION_CONTEXTS; + + // dummy return, not used by others. + if (tx_size <= TX_4X4) return 0; + + TX_SIZE max_tx_size = + get_sqr_tx_size(AOMMAX(block_size_wide[bsize], block_size_high[bsize])); + + if (max_tx_size >= TX_8X8) { + category = + (txsize_sqr_up_map[tx_size] != max_tx_size && max_tx_size > TX_8X8) + + (TX_SIZES - 1 - max_tx_size) * 2; + } + assert(category != TXFM_PARTITION_CONTEXTS); + return category * 3 + above + left; +} + +// Compute the next partition in the direction of the sb_type stored in the mi +// array, starting with bsize. +static INLINE PARTITION_TYPE get_partition(const AV1_COMMON *const cm, + int mi_row, int mi_col, + BLOCK_SIZE bsize) { + if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) return PARTITION_INVALID; + + const int offset = mi_row * cm->mi_stride + mi_col; + MB_MODE_INFO **mi = cm->mi_grid_visible + offset; + const BLOCK_SIZE subsize = mi[0]->sb_type; + + if (subsize == bsize) return PARTITION_NONE; + + const int bhigh = mi_size_high[bsize]; + const int bwide = mi_size_wide[bsize]; + const int sshigh = mi_size_high[subsize]; + const int sswide = mi_size_wide[subsize]; + + if (bsize > BLOCK_8X8 && mi_row + bwide / 2 < cm->mi_rows && + mi_col + bhigh / 2 < cm->mi_cols) { + // In this case, the block might be using an extended partition + // type. + const MB_MODE_INFO *const mbmi_right = mi[bwide / 2]; + const MB_MODE_INFO *const mbmi_below = mi[bhigh / 2 * cm->mi_stride]; + + if (sswide == bwide) { + // Smaller height but same width. Is PARTITION_HORZ_4, PARTITION_HORZ or + // PARTITION_HORZ_B. To distinguish the latter two, check if the lower + // half was split. + if (sshigh * 4 == bhigh) return PARTITION_HORZ_4; + assert(sshigh * 2 == bhigh); + + if (mbmi_below->sb_type == subsize) + return PARTITION_HORZ; + else + return PARTITION_HORZ_B; + } else if (sshigh == bhigh) { + // Smaller width but same height. Is PARTITION_VERT_4, PARTITION_VERT or + // PARTITION_VERT_B. To distinguish the latter two, check if the right + // half was split. + if (sswide * 4 == bwide) return PARTITION_VERT_4; + assert(sswide * 2 == bhigh); + + if (mbmi_right->sb_type == subsize) + return PARTITION_VERT; + else + return PARTITION_VERT_B; + } else { + // Smaller width and smaller height. Might be PARTITION_SPLIT or could be + // PARTITION_HORZ_A or PARTITION_VERT_A. If subsize isn't halved in both + // dimensions, we immediately know this is a split (which will recurse to + // get to subsize). Otherwise look down and to the right. With + // PARTITION_VERT_A, the right block will have height bhigh; with + // PARTITION_HORZ_A, the lower block with have width bwide. Otherwise + // it's PARTITION_SPLIT. + if (sswide * 2 != bwide || sshigh * 2 != bhigh) return PARTITION_SPLIT; + + if (mi_size_wide[mbmi_below->sb_type] == bwide) return PARTITION_HORZ_A; + if (mi_size_high[mbmi_right->sb_type] == bhigh) return PARTITION_VERT_A; + + return PARTITION_SPLIT; + } + } + const int vert_split = sswide < bwide; + const int horz_split = sshigh < bhigh; + const int split_idx = (vert_split << 1) | horz_split; + assert(split_idx != 0); + + static const PARTITION_TYPE base_partitions[4] = { + PARTITION_INVALID, PARTITION_HORZ, PARTITION_VERT, PARTITION_SPLIT + }; + + return base_partitions[split_idx]; +} + +static INLINE void set_use_reference_buffer(AV1_COMMON *const cm, int use) { + cm->seq_params.frame_id_numbers_present_flag = use; +} + +static INLINE void set_sb_size(SequenceHeader *const seq_params, + BLOCK_SIZE sb_size) { + seq_params->sb_size = sb_size; + seq_params->mib_size = mi_size_wide[seq_params->sb_size]; + seq_params->mib_size_log2 = mi_size_wide_log2[seq_params->sb_size]; +} + +// Returns true if the frame is fully lossless at the coded resolution. +// Note: If super-resolution is used, such a frame will still NOT be lossless at +// the upscaled resolution. +static INLINE int is_coded_lossless(const AV1_COMMON *cm, + const MACROBLOCKD *xd) { + int coded_lossless = 1; + if (cm->seg.enabled) { + for (int i = 0; i < MAX_SEGMENTS; ++i) { + if (!xd->lossless[i]) { + coded_lossless = 0; + break; + } + } + } else { + coded_lossless = xd->lossless[0]; + } + return coded_lossless; +} + +static INLINE int is_valid_seq_level_idx(uint8_t seq_level_idx) { + return seq_level_idx < 24 || seq_level_idx == 31; +} + +static INLINE uint8_t major_minor_to_seq_level_idx(BitstreamLevel bl) { + assert(bl.major >= LEVEL_MAJOR_MIN && bl.major <= LEVEL_MAJOR_MAX); + // Since bl.minor is unsigned a comparison will return a warning: + // comparison is always true due to limited range of data type + assert(LEVEL_MINOR_MIN == 0); + assert(bl.minor <= LEVEL_MINOR_MAX); + return ((bl.major - LEVEL_MAJOR_MIN) << LEVEL_MINOR_BITS) + bl.minor; +} + +#ifdef __cplusplus +} // extern "C" +#endif + +#endif // AOM_AV1_COMMON_ONYXC_INT_H_ |