/* * 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_AV1_COMMON_INT_H_ #define AOM_AV1_COMMON_AV1_COMMON_INT_H_ #include #include "config/aom_config.h" #include "config/av1_rtcd.h" #include "aom/internal/aom_codec_internal.h" #include "aom_dsp/flow_estimation/corner_detect.h" #include "aom_util/aom_pthread.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 "aom_dsp/grain_params.h" #include "aom_dsp/grain_table.h" #include "aom_dsp/odintrin.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 /*!\cond */ 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; 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) // - 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. int ref_count; unsigned int order_hint; unsigned int ref_order_hints[INTER_REFS_PER_FRAME]; // These variables are used only in encoder and compare the absolute // display order hint to compute the relative distance and overcome // the limitation of get_relative_dist() which returns incorrect // distance when a very old frame is used as a reference. unsigned int display_order_hint; unsigned int ref_display_order_hint[INTER_REFS_PER_FRAME]; // Frame's level within the hierarchical structure. unsigned int pyramid_level; 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 uint8_t film_grain_params_present; aom_film_grain_t film_grain_params; aom_codec_frame_buffer_t raw_frame_buffer; YV12_BUFFER_CONFIG buf; int temporal_id; // Temporal layer ID of the frame int spatial_id; // Spatial layer ID of the frame FRAME_TYPE frame_type; // This is only used in the encoder but needs to be indexed per ref frame // so it's extremely convenient to keep it here. int interp_filter_selected[SWITCHABLE]; // 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; } 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; uint8_t num_frame_bufs; // Frame buffers allocated internally by the codec. InternalFrameBufferList int_frame_buffers; } BufferPool; /*!\endcond */ /*!\brief Parameters related to CDEF */ typedef struct { //! CDEF column line buffer uint16_t *colbuf[MAX_MB_PLANE]; //! CDEF top & bottom line buffer uint16_t *linebuf[MAX_MB_PLANE]; //! CDEF intermediate buffer uint16_t *srcbuf; //! CDEF column line buffer sizes size_t allocated_colbuf_size[MAX_MB_PLANE]; //! CDEF top and bottom line buffer sizes size_t allocated_linebuf_size[MAX_MB_PLANE]; //! CDEF intermediate buffer size size_t allocated_srcbuf_size; //! CDEF damping factor int cdef_damping; //! Number of CDEF strength values int nb_cdef_strengths; //! CDEF strength values for luma int cdef_strengths[CDEF_MAX_STRENGTHS]; //! CDEF strength values for chroma int cdef_uv_strengths[CDEF_MAX_STRENGTHS]; //! Number of CDEF strength values in bits int cdef_bits; //! Number of rows in the frame in 4 pixel int allocated_mi_rows; //! Number of CDEF workers int allocated_num_workers; } CdefInfo; /*!\cond */ 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. // One exception is the last member 'op_params' that is ignored 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; // Whether current and reference frame IDs are signaled in the bitstream. // Frame id numbers are additional information that do not affect the // decoding process, but provide decoders with a way of detecting missing // reference frames so that appropriate action can be taken. uint8_t 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; uint8_t force_screen_content_tools; // 0 - force off // 1 - force on // 2 - adaptive uint8_t still_picture; // Video is a single frame still picture uint8_t reduced_still_picture_hdr; // Use reduced header for still picture uint8_t force_integer_mv; // 0 - Don't force. MV can use subpel // 1 - force to integer // 2 - adaptive uint8_t enable_filter_intra; // enables/disables filterintra uint8_t enable_intra_edge_filter; // enables/disables edge upsampling uint8_t enable_interintra_compound; // enables/disables interintra_compound uint8_t enable_masked_compound; // enables/disables masked compound uint8_t enable_dual_filter; // 0 - disable dual interpolation filter // 1 - enable vert/horz filter selection uint8_t enable_warped_motion; // 0 - disable warp for the sequence // 1 - enable warp for the sequence uint8_t enable_superres; // 0 - Disable superres for the sequence // and no frame level superres flag // 1 - Enable superres for the sequence // enable per-frame superres flag uint8_t enable_cdef; // To turn on/off CDEF uint8_t enable_restoration; // To turn on/off loop restoration BITSTREAM_PROFILE profile; // 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. uint8_t use_highbitdepth; // If true, we need to use 16bit frame buffers. uint8_t monochrome; // Monochrome 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; uint8_t separate_uv_delta_q; uint8_t film_grain_params_present; // Operating point info. int operating_points_cnt_minus_1; int operating_point_idc[MAX_NUM_OPERATING_POINTS]; // True if operating_point_idc[op] is not equal to 0 for any value of op from // 0 to operating_points_cnt_minus_1. bool has_nonzero_operating_point_idc; int timing_info_present; aom_timing_info_t timing_info; uint8_t decoder_model_info_present_flag; aom_dec_model_info_t decoder_model_info; uint8_t display_model_info_present_flag; AV1_LEVEL seq_level_idx[MAX_NUM_OPERATING_POINTS]; uint8_t tier[MAX_NUM_OPERATING_POINTS]; // seq_tier in spec. One bit: 0 or 1. // IMPORTANT: the op_params member must be at the end of the struct so that // are_seq_headers_consistent() can be implemented with a memcmp() call. // TODO(urvang): We probably don't need the +1 here. aom_dec_model_op_parameters_t op_params[MAX_NUM_OPERATING_POINTS + 1]; } 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 display_order_hint; // Frame's level within the hierarchical structure. unsigned int pyramid_level; unsigned int frame_number; SkipModeInfo skip_mode_info; int refresh_frame_flags; // Which ref frames are overwritten by this frame int frame_refs_short_signaling; } CurrentFrame; /*!\endcond */ /*! * \brief Frame level features. */ typedef struct { /*! * If true, CDF update in the symbol encoding/decoding process is disabled. */ bool disable_cdf_update; /*! * If true, motion vectors are specified to eighth pel precision; and * if false, motion vectors are specified to quarter pel precision. */ bool allow_high_precision_mv; /*! * If true, force integer motion vectors; if false, use the default. */ bool cur_frame_force_integer_mv; /*! * If true, palette tool and/or intra block copy tools may be used. */ bool allow_screen_content_tools; bool allow_intrabc; /*!< If true, intra block copy tool may be used. */ bool allow_warped_motion; /*!< If true, frame may use warped motion mode. */ /*! * If true, using previous frames' motion vectors for prediction is allowed. */ bool allow_ref_frame_mvs; /*! * If true, frame is fully lossless at coded resolution. * */ bool coded_lossless; /*! * If true, frame is fully lossless at upscaled resolution. */ bool all_lossless; /*! * If true, the frame is restricted to a reduced subset of the full set of * transform types. */ bool reduced_tx_set_used; /*! * If true, error resilient mode is enabled. * Note: Error resilient mode allows the syntax of a frame to be parsed * independently of previously decoded frames. */ bool error_resilient_mode; /*! * If false, only MOTION_MODE that may be used is SIMPLE_TRANSLATION; * if true, all MOTION_MODES may be used. */ bool switchable_motion_mode; TX_MODE tx_mode; /*!< Transform mode at frame level. */ InterpFilter interp_filter; /*!< Interpolation filter at frame level. */ /*! * The reference frame that contains the CDF values and other state that * should be loaded at the start of the frame. */ int primary_ref_frame; /*! * Byte alignment of the planes in the reference buffers. */ int byte_alignment; /*! * Flag signaling how frame contexts should be updated at the end of * a frame decode. */ REFRESH_FRAME_CONTEXT_MODE refresh_frame_context; } FeatureFlags; /*! * \brief Params related to tiles. */ typedef struct CommonTileParams { int cols; /*!< number of tile columns that frame is divided into */ int rows; /*!< number of tile rows that frame is divided into */ int max_width_sb; /*!< maximum tile width in superblock units. */ int max_height_sb; /*!< maximum tile height in superblock units. */ /*! * Min width of non-rightmost tile in MI units. Only valid if cols > 1. */ int min_inner_width; /*! * If true, tiles are uniformly spaced with power-of-two number of rows and * columns. * If false, tiles have explicitly configured widths and heights. */ int uniform_spacing; /** * \name Members only valid when uniform_spacing == 1 */ /**@{*/ int log2_cols; /*!< log2 of 'cols'. */ int log2_rows; /*!< log2 of 'rows'. */ int width; /*!< tile width in MI units */ int height; /*!< tile height in MI units */ /**@}*/ /*! * Min num of tile columns possible based on 'max_width_sb' and frame width. */ int min_log2_cols; /*! * Min num of tile rows possible based on 'max_height_sb' and frame height. */ int min_log2_rows; /*! * Max num of tile columns possible based on frame width. */ int max_log2_cols; /*! * Max num of tile rows possible based on frame height. */ int max_log2_rows; /*! * log2 of min number of tiles (same as min_log2_cols + min_log2_rows). */ int min_log2; /*! * col_start_sb[i] is the start position of tile column i in superblock units. * valid for 0 <= i <= cols */ int col_start_sb[MAX_TILE_COLS + 1]; /*! * row_start_sb[i] is the start position of tile row i in superblock units. * valid for 0 <= i <= rows */ int row_start_sb[MAX_TILE_ROWS + 1]; /*! * If true, we are using large scale tile mode. */ unsigned int large_scale; /*! * Only relevant when large_scale == 1. * If true, the independent decoding of a single tile or a section of a frame * is allowed. */ unsigned int single_tile_decoding; } CommonTileParams; typedef struct CommonModeInfoParams CommonModeInfoParams; /*! * \brief Params related to MB_MODE_INFO arrays and related info. */ struct CommonModeInfoParams { /*! * Number of rows in the frame in 16 pixel units. * This is computed from frame height aligned to a multiple of 8. */ int mb_rows; /*! * Number of cols in the frame in 16 pixel units. * This is computed from frame width aligned to a multiple of 8. */ int mb_cols; /*! * Total MBs = mb_rows * mb_cols. */ int MBs; /*! * Number of rows in the frame in 4 pixel (MB_MODE_INFO) units. * This is computed from frame height aligned to a multiple of 8. */ int mi_rows; /*! * Number of cols in the frame in 4 pixel (MB_MODE_INFO) units. * This is computed from frame width aligned to a multiple of 8. */ int mi_cols; /*! * An array of MB_MODE_INFO structs for every 'mi_alloc_bsize' sized block * in the frame. * Note: This array should be treated like a scratch memory, and should NOT be * accessed directly, in most cases. Please use 'mi_grid_base' array instead. */ MB_MODE_INFO *mi_alloc; /*! * Number of allocated elements in 'mi_alloc'. */ int mi_alloc_size; /*! * Stride for 'mi_alloc' array. */ int mi_alloc_stride; /*! * The minimum block size that each element in 'mi_alloc' can correspond to. * For decoder, this is always BLOCK_4X4. * For encoder, this is BLOCK_8X8 for resolution >= 4k case or REALTIME mode * case. Otherwise, this is BLOCK_4X4. */ BLOCK_SIZE mi_alloc_bsize; /*! * Grid of pointers to 4x4 MB_MODE_INFO structs allocated in 'mi_alloc'. * It's possible that: * - Multiple pointers in the grid point to the same element in 'mi_alloc' * (for example, for all 4x4 blocks that belong to the same partition block). * - Some pointers can be NULL (for example, for blocks outside visible area). */ MB_MODE_INFO **mi_grid_base; /*! * Number of allocated elements in 'mi_grid_base' (and 'tx_type_map' also). */ int mi_grid_size; /*! * Stride for 'mi_grid_base' (and 'tx_type_map' also). */ int mi_stride; /*! * An array of tx types for each 4x4 block in the frame. * Number of allocated elements is same as 'mi_grid_size', and stride is * same as 'mi_grid_size'. So, indexing into 'tx_type_map' is same as that of * 'mi_grid_base'. */ TX_TYPE *tx_type_map; /** * \name Function pointers to allow separate logic for encoder and decoder. */ /**@{*/ /*! * Free the memory allocated to arrays in 'mi_params'. * \param[in,out] mi_params object containing common mode info parameters */ void (*free_mi)(struct CommonModeInfoParams *mi_params); /*! * Initialize / reset appropriate arrays in 'mi_params'. * \param[in,out] mi_params object containing common mode info parameters */ void (*setup_mi)(struct CommonModeInfoParams *mi_params); /*! * Allocate required memory for arrays in 'mi_params'. * \param[in,out] mi_params object containing common mode info * parameters * \param width frame width * \param height frame height * \param min_partition_size minimum partition size allowed while * encoding */ void (*set_mb_mi)(struct CommonModeInfoParams *mi_params, int width, int height, BLOCK_SIZE min_partition_size); /**@}*/ }; typedef struct CommonQuantParams CommonQuantParams; /*! * \brief Parameters related to quantization at the frame level. */ struct CommonQuantParams { /*! * Base qindex of the frame in the range 0 to 255. */ int base_qindex; /*! * Delta of qindex (from base_qindex) for Y plane DC coefficient. * Note: y_ac_delta_q is implicitly 0. */ int y_dc_delta_q; /*! * Delta of qindex (from base_qindex) for U plane DC coefficients. */ int u_dc_delta_q; /*! * Delta of qindex (from base_qindex) for U plane AC coefficients. */ int v_dc_delta_q; /*! * Delta of qindex (from base_qindex) for V plane DC coefficients. * Same as those for U plane if cm->seq_params->separate_uv_delta_q == 0. */ int u_ac_delta_q; /*! * Delta of qindex (from base_qindex) for V plane AC coefficients. * Same as those for U plane if cm->seq_params->separate_uv_delta_q == 0. */ int v_ac_delta_q; /* * Note: The qindex per superblock may have a delta from the qindex obtained * at frame level from parameters above, based on 'cm->delta_q_info'. */ /** * \name True dequantizers. * 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]; /*!< Dequant for Y plane */ int16_t u_dequant_QTX[MAX_SEGMENTS][2]; /*!< Dequant for U plane */ int16_t v_dequant_QTX[MAX_SEGMENTS][2]; /*!< Dequant for V plane */ /**@}*/ /** * \name Global quantization matrix tables. */ /**@{*/ /*! * Global dequantization matrix table. */ const qm_val_t *giqmatrix[NUM_QM_LEVELS][3][TX_SIZES_ALL]; /*! * Global quantization matrix table. */ const qm_val_t *gqmatrix[NUM_QM_LEVELS][3][TX_SIZES_ALL]; /**@}*/ /** * \name Local dequantization matrix tables for each frame. */ /**@{*/ /*! * Local dequant matrix for Y plane. */ const qm_val_t *y_iqmatrix[MAX_SEGMENTS][TX_SIZES_ALL]; /*! * Local dequant matrix for U plane. */ const qm_val_t *u_iqmatrix[MAX_SEGMENTS][TX_SIZES_ALL]; /*! * Local dequant matrix for V plane. */ const qm_val_t *v_iqmatrix[MAX_SEGMENTS][TX_SIZES_ALL]; /**@}*/ /*! * Flag indicating whether quantization matrices are being used: * - If true, qm_level_y, qm_level_u and qm_level_v indicate the level * indices to be used to access appropriate global quant matrix tables. * - If false, we implicitly use level index 'NUM_QM_LEVELS - 1'. */ bool using_qmatrix; /** * \name Valid only when using_qmatrix == true * Indicate the level indices to be used to access appropriate global quant * matrix tables. */ /**@{*/ int qmatrix_level_y; /*!< Level index for Y plane */ int qmatrix_level_u; /*!< Level index for U plane */ int qmatrix_level_v; /*!< Level index for V plane */ /**@}*/ }; typedef struct CommonContexts CommonContexts; /*! * \brief Contexts used for transmitting various symbols in the bitstream. */ struct CommonContexts { /*! * Context used by 'FRAME_CONTEXT.partition_cdf' to transmit partition type. * partition[i][j] is the context for ith tile row, jth mi_col. */ PARTITION_CONTEXT **partition; /*! * Context used to derive context for multiple symbols: * - 'TXB_CTX.txb_skip_ctx' used by 'FRAME_CONTEXT.txb_skip_cdf' to transmit * to transmit skip_txfm flag. * - 'TXB_CTX.dc_sign_ctx' used by 'FRAME_CONTEXT.dc_sign_cdf' to transmit * sign. * entropy[i][j][k] is the context for ith plane, jth tile row, kth mi_col. */ ENTROPY_CONTEXT **entropy[MAX_MB_PLANE]; /*! * Context used to derive context for 'FRAME_CONTEXT.txfm_partition_cdf' to * transmit 'is_split' flag to indicate if this transform block should be * split into smaller sub-blocks. * txfm[i][j] is the context for ith tile row, jth mi_col. */ TXFM_CONTEXT **txfm; /*! * Dimensions that were used to allocate the arrays above. * If these dimensions change, the arrays may have to be re-allocated. */ int num_planes; /*!< Corresponds to av1_num_planes(cm) */ int num_tile_rows; /*!< Corresponds to cm->tiles.row */ int num_mi_cols; /*!< Corresponds to cm->mi_params.mi_cols */ }; /*! * \brief Top level common structure used by both encoder and decoder. */ typedef struct AV1Common { /*! * Information about the current frame that is being coded. */ CurrentFrame current_frame; /*! * Code and details about current error status. */ struct aom_internal_error_info *error; /*! * AV1 allows two types of frame scaling operations: * 1. Frame super-resolution: that allows coding a frame at lower resolution * and after decoding the frame, normatively scales and restores the frame -- * inside the coding loop. * 2. Frame resize: that allows coding frame at lower/higher resolution, and * then non-normatively upscale the frame at the time of rendering -- outside * the coding loop. * Hence, the need for 3 types of dimensions. */ /** * \name Coded frame dimensions. */ /**@{*/ int width; /*!< Coded frame width */ int height; /*!< Coded frame height */ /**@}*/ /** * \name Rendered frame dimensions. * Dimensions after applying both super-resolution and resize to the coded * frame. Different from coded dimensions if super-resolution and/or resize * are being used for this frame. */ /**@{*/ int render_width; /*!< Rendered frame width */ int render_height; /*!< Rendered frame height */ /**@}*/ /** * \name Super-resolved frame dimensions. * Frame dimensions after applying super-resolution to the coded frame (if * present), but before applying resize. * Larger than the coded dimensions if super-resolution is being used for * this frame. * Different from rendered dimensions if resize is being used for this frame. */ /**@{*/ int superres_upscaled_width; /*!< Super-resolved frame width */ int superres_upscaled_height; /*!< Super-resolved frame height */ /**@}*/ /*! * The denominator of the superres scale used by this frame. * Note: The numerator is fixed to be SCALE_NUMERATOR. */ uint8_t superres_scale_denominator; /*! * buffer_removal_times[op_num] specifies the frame removal time in units of * DecCT clock ticks counted from the removal time of the last random access * point for operating point op_num. * TODO(urvang): We probably don't need the +1 here. */ uint32_t buffer_removal_times[MAX_NUM_OPERATING_POINTS + 1]; /*! * Presentation time of the frame in clock ticks DispCT counted from the * removal time of the last random access point for the operating point that * is being decoded. */ uint32_t frame_presentation_time; /*! * Buffer where previous frame is stored. */ RefCntBuffer *prev_frame; /*! * Buffer into which the current frame will be stored and other related info. * 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]; /*! * Scale of the current frame with respect to itself. * This is currently used for intra block copy, which behaves like an inter * prediction mode, where the reference frame is the current frame itself. */ struct scale_factors sf_identity; /*! * Scale factors of the reference frame with respect to the current frame. * This is required for generating inter prediction and will be non-identity * for a reference frame, if it has different dimensions than the coded * dimensions of the current frame. */ 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]; /*! * If true, this frame is actually shown after decoding. * If false, this frame is coded in the bitstream, but not shown. It is only * used as a reference for other frames coded later. */ int show_frame; /*! * If true, this frame can be used as a show-existing frame for other frames * coded later. * When 'show_frame' is true, this is always true for all non-keyframes. * When 'show_frame' is false, this value is transmitted in the bitstream. */ int showable_frame; /*! * If true, show an existing frame coded before, instead of actually coding a * frame. The existing frame comes from one of the existing reference buffers, * as signaled in the bitstream. */ int show_existing_frame; /*! * Whether some features are allowed or not. */ FeatureFlags features; /*! * Params related to MB_MODE_INFO arrays and related info. */ CommonModeInfoParams mi_params; #if CONFIG_ENTROPY_STATS /*! * Context type used by token CDFs, in the range 0 .. (TOKEN_CDF_Q_CTXS - 1). */ int coef_cdf_category; #endif // CONFIG_ENTROPY_STATS /*! * Quantization params. */ CommonQuantParams quant_params; /*! * Segmentation info for current frame. */ struct segmentation seg; /*! * Segmentation map for previous frame. */ uint8_t *last_frame_seg_map; /** * \name Deblocking filter parameters. */ /**@{*/ loop_filter_info_n lf_info; /*!< Loop filter info */ struct loopfilter lf; /*!< Loop filter parameters */ /**@}*/ /** * \name Loop Restoration filter parameters. */ /**@{*/ RestorationInfo rst_info[MAX_MB_PLANE]; /*!< Loop Restoration filter info */ int32_t *rst_tmpbuf; /*!< Scratch buffer for self-guided restoration */ RestorationLineBuffers *rlbs; /*!< Line buffers needed by loop restoration */ YV12_BUFFER_CONFIG rst_frame; /*!< Stores the output of loop restoration */ /**@}*/ /*! * CDEF (Constrained Directional Enhancement Filter) parameters. */ CdefInfo cdef_info; /*! * Parameters for film grain synthesis. */ aom_film_grain_t film_grain_params; /*! * Parameters for delta quantization and delta loop filter level. */ DeltaQInfo delta_q_info; /*! * Global motion parameters for each reference frame. */ WarpedMotionParams global_motion[REF_FRAMES]; /*! * Elements part of the sequence header, that are applicable for all the * frames in the video. */ SequenceHeader *seq_params; /*! * Current CDFs of all the symbols for the current frame. */ FRAME_CONTEXT *fc; /*! * Default CDFs used when features.primary_ref_frame = PRIMARY_REF_NONE * (e.g. for a keyframe). These default CDFs are defined by the bitstream and * copied from default CDF tables for each symbol. */ FRAME_CONTEXT *default_frame_context; /*! * Parameters related to tiling. */ CommonTileParams tiles; /*! * External BufferPool passed from outside. */ BufferPool *buffer_pool; /*! * Above context buffers and their sizes. * Note: above contexts are allocated in this struct, as their size is * dependent on frame width, while left contexts are declared and allocated in * MACROBLOCKD struct, as they have a fixed size. */ CommonContexts above_contexts; /** * \name Signaled when cm->seq_params->frame_id_numbers_present_flag == 1 */ /**@{*/ int current_frame_id; /*!< frame ID for the current frame. */ int ref_frame_id[REF_FRAMES]; /*!< frame IDs for the reference frames. */ /**@}*/ /*! * Motion vectors provided by motion field estimation. * tpl_mvs[row * stride + col] stores MV for block at [mi_row, mi_col] where: * mi_row = 2 * row, * mi_col = 2 * col, and * stride = cm->mi_params.mi_stride / 2 */ TPL_MV_REF *tpl_mvs; /*! * Allocated size of 'tpl_mvs' array. Refer to 'ensure_mv_buffer()' function. */ int tpl_mvs_mem_size; /*! * ref_frame_sign_bias[k] is 1 if relative distance between reference 'k' and * current frame is positive; and 0 otherwise. */ int ref_frame_sign_bias[REF_FRAMES]; /*! * ref_frame_side[k] is 1 if relative distance between reference 'k' and * current frame is positive, -1 if relative distance is 0; and 0 otherwise. * TODO(jingning): This can be combined with sign_bias later. */ int8_t ref_frame_side[REF_FRAMES]; /*! * Temporal layer ID of this frame * (in the range 0 ... (number_temporal_layers - 1)). */ int temporal_layer_id; /*! * Spatial layer ID of this frame * (in the range 0 ... (number_spatial_layers - 1)). */ int spatial_layer_id; #if TXCOEFF_TIMER int64_t cum_txcoeff_timer; int64_t txcoeff_timer; int txb_count; #endif // TXCOEFF_TIMER #if TXCOEFF_COST_TIMER int64_t cum_txcoeff_cost_timer; int64_t txcoeff_cost_timer; int64_t txcoeff_cost_count; #endif // TXCOEFF_COST_TIMER } AV1_COMMON; /*!\cond */ // 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); const int num_frame_bufs = cm->buffer_pool->num_frame_bufs; for (i = 0; i < num_frame_bufs; ++i) if (frame_bufs[i].ref_count == 0) break; if (i != num_frame_bufs) { 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; } static inline RefCntBuffer *assign_cur_frame_new_fb(AV1_COMMON *const cm) { // Release the previously-used frame-buffer if (cm->cur_frame != NULL) { --cm->cur_frame->ref_count; cm->cur_frame = NULL; } // Assign a new framebuffer const int new_fb_idx = get_free_fb(cm); if (new_fb_idx == INVALID_IDX) return NULL; cm->cur_frame = &cm->buffer_pool->frame_bufs[new_fb_idx]; #if CONFIG_AV1_ENCODER && !CONFIG_REALTIME_ONLY aom_invalidate_pyramid(cm->cur_frame->buf.y_pyramid); av1_invalidate_corner_list(cm->cur_frame->buf.corners); #endif // CONFIG_AV1_ENCODER && !CONFIG_REALTIME_ONLY av1_zero(cm->cur_frame->interp_filter_selected); return cm->cur_frame; } // 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) { const int primary_ref_frame = cm->features.primary_ref_frame; if (primary_ref_frame == PRIMARY_REF_NONE) return NULL; const int map_idx = get_ref_frame_map_idx(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->features.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->features.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; const CommonModeInfoParams *const mi_params = &cm->mi_params; if (buf->mvs == NULL || buf_rows != mi_params->mi_rows || buf_cols != mi_params->mi_cols) { aom_free(buf->mvs); buf->mi_rows = mi_params->mi_rows; buf->mi_cols = mi_params->mi_cols; CHECK_MEM_ERROR(cm, buf->mvs, (MV_REF *)aom_calloc(((mi_params->mi_rows + 1) >> 1) * ((mi_params->mi_cols + 1) >> 1), sizeof(*buf->mvs))); aom_free(buf->seg_map); CHECK_MEM_ERROR( cm, buf->seg_map, (uint8_t *)aom_calloc(mi_params->mi_rows * mi_params->mi_cols, sizeof(*buf->seg_map))); } const int mem_size = ((mi_params->mi_rows + MAX_MIB_SIZE) >> 1) * (mi_params->mi_stride >> 1); if (cm->tpl_mvs == NULL || cm->tpl_mvs_mem_size < mem_size) { 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; } } #if !CONFIG_REALTIME_ONLY || CONFIG_AV1_DECODER void cfl_init(CFL_CTX *cfl, const SequenceHeader *seq_params); #endif 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(CommonContexts *above_contexts, int num_planes, int tile_row, MACROBLOCKD *xd) { for (int i = 0; i < num_planes; ++i) { xd->above_entropy_context[i] = above_contexts->entropy[i][tile_row]; } xd->above_partition_context = above_contexts->partition[tile_row]; xd->above_txfm_context = above_contexts->txfm[tile_row]; } static inline void av1_init_macroblockd(AV1_COMMON *cm, MACROBLOCKD *xd) { const int num_planes = av1_num_planes(cm); const CommonQuantParams *const quant_params = &cm->quant_params; for (int i = 0; i < num_planes; ++i) { if (xd->plane[i].plane_type == PLANE_TYPE_Y) { memcpy(xd->plane[i].seg_dequant_QTX, quant_params->y_dequant_QTX, sizeof(quant_params->y_dequant_QTX)); memcpy(xd->plane[i].seg_iqmatrix, quant_params->y_iqmatrix, sizeof(quant_params->y_iqmatrix)); } else { if (i == AOM_PLANE_U) { memcpy(xd->plane[i].seg_dequant_QTX, quant_params->u_dequant_QTX, sizeof(quant_params->u_dequant_QTX)); memcpy(xd->plane[i].seg_iqmatrix, quant_params->u_iqmatrix, sizeof(quant_params->u_iqmatrix)); } else { memcpy(xd->plane[i].seg_dequant_QTX, quant_params->v_dequant_QTX, sizeof(quant_params->v_dequant_QTX)); memcpy(xd->plane[i].seg_iqmatrix, quant_params->v_iqmatrix, sizeof(quant_params->v_iqmatrix)); } } } xd->mi_stride = cm->mi_params.mi_stride; xd->error_info = cm->error; #if !CONFIG_REALTIME_ONLY || CONFIG_AV1_DECODER cfl_init(&xd->cfl, cm->seq_params); #endif } static inline void set_entropy_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]->bsize; 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_entropy_context = &xd->above_entropy_context[i][above_idx >> pd->subsampling_x]; pd->left_entropy_context = &xd->left_entropy_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 = -GET_MV_SUBPEL(mi_row * MI_SIZE); xd->mb_to_bottom_edge = GET_MV_SUBPEL((mi_rows - bh - mi_row) * MI_SIZE); xd->mb_to_left_edge = -GET_MV_SUBPEL((mi_col * MI_SIZE)); xd->mb_to_right_edge = GET_MV_SUBPEL((mi_cols - bw - mi_col) * MI_SIZE); xd->mi_row = mi_row; xd->mi_col = mi_col; // 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); xd->is_chroma_ref = chroma_ref; if (chroma_ref) { // To help calculate the "above" and "left" chroma blocks, note that the // current block may cover multiple luma blocks (e.g., 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->height = bh; xd->width = bw; xd->is_last_vertical_rect = 0; if (xd->width < xd->height) { if (!((mi_col + xd->width) & (xd->height - 1))) { xd->is_last_vertical_rect = 1; } } xd->is_first_horizontal_rect = 0; if (xd->width > xd->height) if (!(mi_row & (xd->width - 1))) xd->is_first_horizontal_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_partition_context + mi_col; PARTITION_CONTEXT *const left_ctx = xd->left_partition_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) { assert(bsize < BLOCK_SIZES_ALL); 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 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_partition_context + mi_col; const PARTITION_CONTEXT *left_ctx = xd->left_partition_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) { assert(bsize < BLOCK_SIZES_ALL); int max_blocks_wide = block_size_wide[bsize]; if (xd->mb_to_right_edge < 0) { const struct macroblockd_plane *const pd = &xd->plane[plane]; max_blocks_wide += xd->mb_to_right_edge >> (3 + pd->subsampling_x); } // Scale the width in the transform block unit. return max_blocks_wide >> MI_SIZE_LOG2; } static inline int max_block_high(const MACROBLOCKD *xd, BLOCK_SIZE bsize, int plane) { int max_blocks_high = block_size_high[bsize]; if (xd->mb_to_bottom_edge < 0) { const struct macroblockd_plane *const pd = &xd->plane[plane]; max_blocks_high += xd->mb_to_bottom_edge >> (3 + pd->subsampling_y); } // Scale the height in the transform block unit. return max_blocks_high >> MI_SIZE_LOG2; } 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; CommonContexts *const above_contexts = &cm->above_contexts; av1_zero_array(above_contexts->entropy[0][tile_row] + offset_y, width_y); if (num_planes > 1) { if (above_contexts->entropy[1][tile_row] && above_contexts->entropy[2][tile_row]) { av1_zero_array(above_contexts->entropy[1][tile_row] + offset_uv, width_uv); av1_zero_array(above_contexts->entropy[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(above_contexts->partition[tile_row] + mi_col_start, aligned_width); memset(above_contexts->txfm[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_entropy_context); av1_zero(xd->left_partition_context); memset(xd->left_txfm_context_buffer, tx_size_high[TX_SIZES_LARGEST], sizeof(xd->left_txfm_context_buffer)); } 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 int get_mi_grid_idx(const CommonModeInfoParams *const mi_params, int mi_row, int mi_col) { return mi_row * mi_params->mi_stride + mi_col; } static inline int get_alloc_mi_idx(const CommonModeInfoParams *const mi_params, int mi_row, int mi_col) { const int mi_alloc_size_1d = mi_size_wide[mi_params->mi_alloc_bsize]; const int mi_alloc_row = mi_row / mi_alloc_size_1d; const int mi_alloc_col = mi_col / mi_alloc_size_1d; return mi_alloc_row * mi_params->mi_alloc_stride + mi_alloc_col; } // For this partition block, set pointers in mi_params->mi_grid_base and xd->mi. static inline void set_mi_offsets(const CommonModeInfoParams *const mi_params, MACROBLOCKD *const xd, int mi_row, int mi_col) { // 'mi_grid_base' should point to appropriate memory in 'mi'. const int mi_grid_idx = get_mi_grid_idx(mi_params, mi_row, mi_col); const int mi_alloc_idx = get_alloc_mi_idx(mi_params, mi_row, mi_col); mi_params->mi_grid_base[mi_grid_idx] = &mi_params->mi_alloc[mi_alloc_idx]; // 'xd->mi' should point to an offset in 'mi_grid_base'; xd->mi = mi_params->mi_grid_base + mi_grid_idx; // 'xd->tx_type_map' should point to an offset in 'mi_params->tx_type_map'. xd->tx_type_map = mi_params->tx_type_map + mi_grid_idx; xd->tx_type_map_stride = mi_params->mi_stride; } 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) { const CommonModeInfoParams *const mi_params = &cm->mi_params; if (mi_row >= mi_params->mi_rows || mi_col >= mi_params->mi_cols) return PARTITION_INVALID; const int offset = mi_row * mi_params->mi_stride + mi_col; MB_MODE_INFO **mi = mi_params->mi_grid_base + offset; const BLOCK_SIZE subsize = mi[0]->bsize; assert(bsize < BLOCK_SIZES_ALL); 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 < mi_params->mi_rows && mi_col + bhigh / 2 < mi_params->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 * mi_params->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->bsize == 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 == bwide); if (mbmi_right->bsize == 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->bsize] == bwide) return PARTITION_HORZ_A; if (mi_size_high[mbmi_right->bsize] == 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(AV1_LEVEL seq_level_idx) { return seq_level_idx == SEQ_LEVEL_MAX || (seq_level_idx < SEQ_LEVELS && // The following levels are currently undefined. seq_level_idx != SEQ_LEVEL_2_2 && seq_level_idx != SEQ_LEVEL_2_3 && seq_level_idx != SEQ_LEVEL_3_2 && seq_level_idx != SEQ_LEVEL_3_3 && seq_level_idx != SEQ_LEVEL_4_2 && seq_level_idx != SEQ_LEVEL_4_3 #if !CONFIG_CWG_C013 && seq_level_idx != SEQ_LEVEL_7_0 && seq_level_idx != SEQ_LEVEL_7_1 && seq_level_idx != SEQ_LEVEL_7_2 && seq_level_idx != SEQ_LEVEL_7_3 && seq_level_idx != SEQ_LEVEL_8_0 && seq_level_idx != SEQ_LEVEL_8_1 && seq_level_idx != SEQ_LEVEL_8_2 && seq_level_idx != SEQ_LEVEL_8_3 #endif ); } /*!\endcond */ #ifdef __cplusplus } // extern "C" #endif #endif // AOM_AV1_COMMON_AV1_COMMON_INT_H_