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/*
* 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
enum {
SINGLE_REFERENCE = 0,
COMPOUND_REFERENCE = 1,
REFERENCE_MODE_SELECT = 2,
REFERENCE_MODES = 3,
} UENUM1BYTE(REFERENCE_MODE);
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,
} UENUM1BYTE(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;
// FIXME(jack.haughton@argondesign.com): This enum was originally in
// encoder/ratectrl.h, and is encoder specific. When we move to C++, this
// should go back there and BufferPool should be templatized.
enum {
INTER_NORMAL = 0,
INTER_LOW = 1,
INTER_HIGH = 2,
GF_ARF_LOW = 3,
GF_ARF_STD = 4,
KF_STD = 5,
RATE_FACTOR_LEVELS = 6
} UENUM1BYTE(RATE_FACTOR_LEVEL);
typedef struct RefCntBuffer {
// For a RefCntBuffer, the following are reference-holding variables:
// - cm->ref_frame_map[]
// - cm->cur_frame
// - cm->scaled_ref_buf[] (encoder only)
// - cm->next_ref_frame_map[] (decoder only)
// - pbi->output_frame_index[] (decoder only)
// With that definition, 'ref_count' is the number of reference-holding
// variables that are currently referencing this buffer.
// For example:
// - suppose this buffer is at index 'k' in the buffer pool, and
// - Total 'n' of the variables / array elements above have value 'k' (that
// is, they are pointing to buffer at index 'k').
// Then, pool->frame_bufs[k].ref_count = n.
// TODO(david.turner@argondesign.com) Check whether this helpful comment is
// still correct after we finish restructuring
int ref_count;
unsigned int order_hint;
unsigned int ref_order_hints[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;
FRAME_TYPE frame_type;
// 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];
FRAME_CONTEXT frame_context;
RATE_FACTOR_LEVEL frame_rf_level;
} 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.
// TODO(wtc): Remove this. See
// https://chromium-review.googlesource.com/c/webm/libvpx/+/560630.
#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 BitstreamLevel {
uint8_t major;
uint8_t minor;
} BitstreamLevel;
typedef struct {
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;
} CdefInfo;
typedef struct {
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;
} DeltaQInfo;
typedef struct {
int enable_order_hint; // 0 - disable order hint, and related tools
int order_hint_bits_minus_1; // dist_wtd_comp, ref_frame_mvs,
// frame_sign_bias
// if 0, enable_dist_wtd_comp and
// enable_ref_frame_mvs must be set as 0.
int enable_dist_wtd_comp; // 0 - disable dist-wtd compound modes
// 1 - enable it
int enable_ref_frame_mvs; // 0 - disable ref frame mvs
// 1 - enable it
} OrderHintInfo;
// 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.
OrderHintInfo order_hint_info;
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_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 {
int skip_mode_allowed;
int skip_mode_flag;
int ref_frame_idx_0;
int ref_frame_idx_1;
} SkipModeInfo;
typedef struct {
FRAME_TYPE frame_type;
REFERENCE_MODE reference_mode;
unsigned int order_hint;
unsigned int frame_number;
SkipModeInfo skip_mode_info;
int refresh_frame_flags; // Which ref frames are overwritten by this frame
} CurrentFrame;
typedef struct AV1Common {
CurrentFrame current_frame;
struct aom_internal_error_info error;
int width;
int height;
int render_width;
int render_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 context_update_tile_id;
// Scale of the current frame with respect to itself.
struct scale_factors sf_identity;
RefCntBuffer *prev_frame;
// TODO(hkuang): Combine this with cur_buf in macroblockd.
RefCntBuffer *cur_frame;
// For encoder, we have a two-level mapping from reference frame type to the
// corresponding buffer in the buffer pool:
// * 'remapped_ref_idx[i - 1]' maps reference type ‘i’ (range: LAST_FRAME ...
// EXTREF_FRAME) to a remapped index ‘j’ (in range: 0 ... REF_FRAMES - 1)
// * Later, 'cm->ref_frame_map[j]' maps the remapped index ‘j’ to a pointer to
// the reference counted buffer structure RefCntBuffer, taken from the buffer
// pool cm->buffer_pool->frame_bufs.
//
// LAST_FRAME, ..., EXTREF_FRAME
// | |
// v v
// remapped_ref_idx[LAST_FRAME - 1], ..., remapped_ref_idx[EXTREF_FRAME - 1]
// | |
// v v
// ref_frame_map[], ..., ref_frame_map[]
//
// Note: INTRA_FRAME always refers to the current frame, so there's no need to
// have a remapped index for the same.
int remapped_ref_idx[REF_FRAMES];
struct scale_factors ref_scale_factors[REF_FRAMES];
// For decoder, ref_frame_map[i] maps reference type 'i' to a pointer to
// the buffer in the buffer pool ‘cm->buffer_pool.frame_bufs’.
// For encoder, ref_frame_map[j] (where j = remapped_ref_idx[i]) maps
// remapped reference index 'j' (that is, original reference type 'i') to
// a pointer to the buffer in the buffer pool ‘cm->buffer_pool.frame_bufs’.
RefCntBuffer *ref_frame_map[REF_FRAMES];
// Prepare ref_frame_map for the next frame.
// Only used in frame parallel decode.
RefCntBuffer *next_ref_frame_map[REF_FRAMES];
int show_frame;
int showable_frame; // frame can be used as show existing frame in future
int show_existing_frame;
int reset_decoder_state;
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 dequantizers 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;
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];
// 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];
FRAME_CONTEXT *fc; /* this frame entropy */
FRAME_CONTEXT *default_frame_context;
int primary_ref_frame;
int error_resilient_mode;
int force_primary_ref_none;
int tile_cols, 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;
// 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;
CdefInfo cdef_info;
DeltaQInfo delta_q_info; // Delta Q and Delta LF parameters
int num_tg;
SequenceHeader seq_params;
int current_frame_id;
int ref_frame_id[REF_FRAMES];
int valid_for_referencing[REF_FRAMES];
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 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;
int is_decoding;
} 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] == NULL) return NULL;
return &cm->ref_frame_map[index]->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 {
// We should never run out of free buffers. If this assertion fails, there
// is a reference leak.
assert(0 && "Ran out of free frame buffers. Likely a reference leak.");
// Reset i to be INVALID_IDX to indicate no free buffer found.
i = INVALID_IDX;
}
unlock_buffer_pool(cm->buffer_pool);
return i;
}
// Modify 'lhs_ptr' to reference the buffer at 'rhs_ptr', and update the ref
// counts accordingly.
static INLINE void assign_frame_buffer_p(RefCntBuffer **lhs_ptr,
RefCntBuffer *rhs_ptr) {
RefCntBuffer *const old_ptr = *lhs_ptr;
if (old_ptr != NULL) {
assert(old_ptr->ref_count > 0);
// One less reference to the buffer at 'old_ptr', so decrease ref count.
--old_ptr->ref_count;
}
*lhs_ptr = rhs_ptr;
// One more reference to the buffer at 'rhs_ptr', so increase ref count.
++rhs_ptr->ref_count;
}
static INLINE int frame_is_intra_only(const AV1_COMMON *const cm) {
return cm->current_frame.frame_type == KEY_FRAME ||
cm->current_frame.frame_type == INTRA_ONLY_FRAME;
}
static INLINE int frame_is_sframe(const AV1_COMMON *cm) {
return cm->current_frame.frame_type == S_FRAME;
}
// These functions take a reference frame label between LAST_FRAME and
// EXTREF_FRAME inclusive. Note that this is different to the indexing
// previously used by the frame_refs[] array.
static INLINE int get_ref_frame_map_idx(const AV1_COMMON *const cm,
const MV_REFERENCE_FRAME ref_frame) {
return (ref_frame >= LAST_FRAME && ref_frame <= EXTREF_FRAME)
? cm->remapped_ref_idx[ref_frame - LAST_FRAME]
: INVALID_IDX;
}
static INLINE RefCntBuffer *get_ref_frame_buf(
const AV1_COMMON *const cm, const MV_REFERENCE_FRAME ref_frame) {
const int map_idx = get_ref_frame_map_idx(cm, ref_frame);
return (map_idx != INVALID_IDX) ? cm->ref_frame_map[map_idx] : NULL;
}
// Both const and non-const versions of this function are provided so that it
// can be used with a const AV1_COMMON if needed.
static INLINE const struct scale_factors *get_ref_scale_factors_const(
const AV1_COMMON *const cm, const MV_REFERENCE_FRAME ref_frame) {
const int map_idx = get_ref_frame_map_idx(cm, ref_frame);
return (map_idx != INVALID_IDX) ? &cm->ref_scale_factors[map_idx] : NULL;
}
static INLINE struct scale_factors *get_ref_scale_factors(
AV1_COMMON *const cm, const MV_REFERENCE_FRAME ref_frame) {
const int map_idx = get_ref_frame_map_idx(cm, ref_frame);
return (map_idx != INVALID_IDX) ? &cm->ref_scale_factors[map_idx] : NULL;
}
static INLINE RefCntBuffer *get_primary_ref_frame_buf(
const AV1_COMMON *const cm) {
if (cm->primary_ref_frame == PRIMARY_REF_NONE) return NULL;
const int map_idx = get_ref_frame_map_idx(cm, cm->primary_ref_frame + 1);
return (map_idx != INVALID_IDX) ? cm->ref_frame_map[map_idx] : NULL;
}
// 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.order_hint_info.enable_ref_frame_mvs &&
cm->seq_params.order_hint_info.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(const TXFM_CONTEXT *const above_ctx,
const TXFM_CONTEXT *const 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_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_