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Diffstat (limited to 'third_party/aom/av1/common/restoration.h')
-rw-r--r-- | third_party/aom/av1/common/restoration.h | 377 |
1 files changed, 0 insertions, 377 deletions
diff --git a/third_party/aom/av1/common/restoration.h b/third_party/aom/av1/common/restoration.h deleted file mode 100644 index d834f9270f..0000000000 --- a/third_party/aom/av1/common/restoration.h +++ /dev/null @@ -1,377 +0,0 @@ -/* - * 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_RESTORATION_H_ -#define AOM_AV1_COMMON_RESTORATION_H_ - -#include "aom_ports/mem.h" -#include "config/aom_config.h" - -#include "av1/common/blockd.h" -#include "av1/common/enums.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define CLIP(x, lo, hi) ((x) < (lo) ? (lo) : (x) > (hi) ? (hi) : (x)) -#define RINT(x) ((x) < 0 ? (int)((x)-0.5) : (int)((x) + 0.5)) - -#define RESTORATION_PROC_UNIT_SIZE 64 - -// Filter tile grid offset upwards compared to the superblock grid -#define RESTORATION_UNIT_OFFSET 8 - -#define SGRPROJ_BORDER_VERT 3 // Vertical border used for Sgr -#define SGRPROJ_BORDER_HORZ 3 // Horizontal border used for Sgr - -#define WIENER_BORDER_VERT 2 // Vertical border used for Wiener -#define WIENER_HALFWIN 3 -#define WIENER_BORDER_HORZ (WIENER_HALFWIN) // Horizontal border for Wiener - -// RESTORATION_BORDER_VERT determines line buffer requirement for LR. -// Should be set at the max of SGRPROJ_BORDER_VERT and WIENER_BORDER_VERT. -// Note the line buffer needed is twice the value of this macro. -#if SGRPROJ_BORDER_VERT >= WIENER_BORDER_VERT -#define RESTORATION_BORDER_VERT (SGRPROJ_BORDER_VERT) -#else -#define RESTORATION_BORDER_VERT (WIENER_BORDER_VERT) -#endif // SGRPROJ_BORDER_VERT >= WIENER_BORDER_VERT - -#if SGRPROJ_BORDER_HORZ >= WIENER_BORDER_HORZ -#define RESTORATION_BORDER_HORZ (SGRPROJ_BORDER_HORZ) -#else -#define RESTORATION_BORDER_HORZ (WIENER_BORDER_HORZ) -#endif // SGRPROJ_BORDER_VERT >= WIENER_BORDER_VERT - -// How many border pixels do we need for each processing unit? -#define RESTORATION_BORDER 3 - -// How many rows of deblocked pixels do we save above/below each processing -// stripe? -#define RESTORATION_CTX_VERT 2 - -// Additional pixels to the left and right in above/below buffers -// It is RESTORATION_BORDER_HORZ rounded up to get nicer buffer alignment -#define RESTORATION_EXTRA_HORZ 4 - -// Pad up to 20 more (may be much less is needed) -#define RESTORATION_PADDING 20 -#define RESTORATION_PROC_UNIT_PELS \ - ((RESTORATION_PROC_UNIT_SIZE + RESTORATION_BORDER_HORZ * 2 + \ - RESTORATION_PADDING) * \ - (RESTORATION_PROC_UNIT_SIZE + RESTORATION_BORDER_VERT * 2 + \ - RESTORATION_PADDING)) - -#define RESTORATION_UNITSIZE_MAX 256 -#define RESTORATION_UNITPELS_HORZ_MAX \ - (RESTORATION_UNITSIZE_MAX * 3 / 2 + 2 * RESTORATION_BORDER_HORZ + 16) -#define RESTORATION_UNITPELS_VERT_MAX \ - ((RESTORATION_UNITSIZE_MAX * 3 / 2 + 2 * RESTORATION_BORDER_VERT + \ - RESTORATION_UNIT_OFFSET)) -#define RESTORATION_UNITPELS_MAX \ - (RESTORATION_UNITPELS_HORZ_MAX * RESTORATION_UNITPELS_VERT_MAX) - -// Two 32-bit buffers needed for the restored versions from two filters -// TODO(debargha, rupert): Refactor to not need the large tilesize to be stored -// on the decoder side. -#define SGRPROJ_TMPBUF_SIZE (RESTORATION_UNITPELS_MAX * 2 * sizeof(int32_t)) - -#define SGRPROJ_EXTBUF_SIZE (0) -#define SGRPROJ_PARAMS_BITS 4 -#define SGRPROJ_PARAMS (1 << SGRPROJ_PARAMS_BITS) - -// Precision bits for projection -#define SGRPROJ_PRJ_BITS 7 -// Restoration precision bits generated higher than source before projection -#define SGRPROJ_RST_BITS 4 -// Internal precision bits for core selfguided_restoration -#define SGRPROJ_SGR_BITS 8 -#define SGRPROJ_SGR (1 << SGRPROJ_SGR_BITS) - -#define SGRPROJ_PRJ_MIN0 (-(1 << SGRPROJ_PRJ_BITS) * 3 / 4) -#define SGRPROJ_PRJ_MAX0 (SGRPROJ_PRJ_MIN0 + (1 << SGRPROJ_PRJ_BITS) - 1) -#define SGRPROJ_PRJ_MIN1 (-(1 << SGRPROJ_PRJ_BITS) / 4) -#define SGRPROJ_PRJ_MAX1 (SGRPROJ_PRJ_MIN1 + (1 << SGRPROJ_PRJ_BITS) - 1) - -#define SGRPROJ_PRJ_SUBEXP_K 4 - -#define SGRPROJ_BITS (SGRPROJ_PRJ_BITS * 2 + SGRPROJ_PARAMS_BITS) - -#define MAX_RADIUS 2 // Only 1, 2, 3 allowed -#define MAX_NELEM ((2 * MAX_RADIUS + 1) * (2 * MAX_RADIUS + 1)) -#define SGRPROJ_MTABLE_BITS 20 -#define SGRPROJ_RECIP_BITS 12 - -#define WIENER_HALFWIN1 (WIENER_HALFWIN + 1) -#define WIENER_WIN (2 * WIENER_HALFWIN + 1) -#define WIENER_WIN2 ((WIENER_WIN) * (WIENER_WIN)) -#define WIENER_TMPBUF_SIZE (0) -#define WIENER_EXTBUF_SIZE (0) - -// If WIENER_WIN_CHROMA == WIENER_WIN - 2, that implies 5x5 filters are used for -// chroma. To use 7x7 for chroma set WIENER_WIN_CHROMA to WIENER_WIN. -#define WIENER_WIN_CHROMA (WIENER_WIN - 2) -#define WIENER_WIN2_CHROMA ((WIENER_WIN_CHROMA) * (WIENER_WIN_CHROMA)) - -#define WIENER_FILT_PREC_BITS 7 -#define WIENER_FILT_STEP (1 << WIENER_FILT_PREC_BITS) - -// Central values for the taps -#define WIENER_FILT_TAP0_MIDV (3) -#define WIENER_FILT_TAP1_MIDV (-7) -#define WIENER_FILT_TAP2_MIDV (15) -#define WIENER_FILT_TAP3_MIDV \ - (WIENER_FILT_STEP - 2 * (WIENER_FILT_TAP0_MIDV + WIENER_FILT_TAP1_MIDV + \ - WIENER_FILT_TAP2_MIDV)) - -#define WIENER_FILT_TAP0_BITS 4 -#define WIENER_FILT_TAP1_BITS 5 -#define WIENER_FILT_TAP2_BITS 6 - -#define WIENER_FILT_BITS \ - ((WIENER_FILT_TAP0_BITS + WIENER_FILT_TAP1_BITS + WIENER_FILT_TAP2_BITS) * 2) - -#define WIENER_FILT_TAP0_MINV \ - (WIENER_FILT_TAP0_MIDV - (1 << WIENER_FILT_TAP0_BITS) / 2) -#define WIENER_FILT_TAP1_MINV \ - (WIENER_FILT_TAP1_MIDV - (1 << WIENER_FILT_TAP1_BITS) / 2) -#define WIENER_FILT_TAP2_MINV \ - (WIENER_FILT_TAP2_MIDV - (1 << WIENER_FILT_TAP2_BITS) / 2) - -#define WIENER_FILT_TAP0_MAXV \ - (WIENER_FILT_TAP0_MIDV - 1 + (1 << WIENER_FILT_TAP0_BITS) / 2) -#define WIENER_FILT_TAP1_MAXV \ - (WIENER_FILT_TAP1_MIDV - 1 + (1 << WIENER_FILT_TAP1_BITS) / 2) -#define WIENER_FILT_TAP2_MAXV \ - (WIENER_FILT_TAP2_MIDV - 1 + (1 << WIENER_FILT_TAP2_BITS) / 2) - -#define WIENER_FILT_TAP0_SUBEXP_K 1 -#define WIENER_FILT_TAP1_SUBEXP_K 2 -#define WIENER_FILT_TAP2_SUBEXP_K 3 - -// Max of SGRPROJ_TMPBUF_SIZE, DOMAINTXFMRF_TMPBUF_SIZE, WIENER_TMPBUF_SIZE -#define RESTORATION_TMPBUF_SIZE (SGRPROJ_TMPBUF_SIZE) - -// Max of SGRPROJ_EXTBUF_SIZE, WIENER_EXTBUF_SIZE -#define RESTORATION_EXTBUF_SIZE (WIENER_EXTBUF_SIZE) - -// Check the assumptions of the existing code -#if SUBPEL_TAPS != WIENER_WIN + 1 -#error "Wiener filter currently only works if SUBPEL_TAPS == WIENER_WIN + 1" -#endif -#if WIENER_FILT_PREC_BITS != 7 -#error "Wiener filter currently only works if WIENER_FILT_PREC_BITS == 7" -#endif - -#define LR_TILE_ROW 0 -#define LR_TILE_COL 0 -#define LR_TILE_COLS 1 - -typedef struct { - int r[2]; // radii - int s[2]; // sgr parameters for r[0] and r[1], based on GenSgrprojVtable() -} sgr_params_type; - -typedef struct { - RestorationType restoration_type; - WienerInfo wiener_info; - SgrprojInfo sgrproj_info; -} RestorationUnitInfo; - -// A restoration line buffer needs space for two lines plus a horizontal filter -// margin of RESTORATION_EXTRA_HORZ on each side. -#define RESTORATION_LINEBUFFER_WIDTH \ - (RESTORATION_UNITSIZE_MAX * 3 / 2 + 2 * RESTORATION_EXTRA_HORZ) - -// Similarly, the column buffers (used when we're at a vertical tile edge -// that we can't filter across) need space for one processing unit's worth -// of pixels, plus the top/bottom border width -#define RESTORATION_COLBUFFER_HEIGHT \ - (RESTORATION_PROC_UNIT_SIZE + 2 * RESTORATION_BORDER) - -typedef struct { - // Temporary buffers to save/restore 3 lines above/below the restoration - // stripe. - uint16_t tmp_save_above[RESTORATION_BORDER][RESTORATION_LINEBUFFER_WIDTH]; - uint16_t tmp_save_below[RESTORATION_BORDER][RESTORATION_LINEBUFFER_WIDTH]; -} RestorationLineBuffers; - -typedef struct { - uint8_t *stripe_boundary_above; - uint8_t *stripe_boundary_below; - int stripe_boundary_stride; - int stripe_boundary_size; -} RestorationStripeBoundaries; - -typedef struct { - RestorationType frame_restoration_type; - int restoration_unit_size; - - // Fields below here are allocated and initialised by - // av1_alloc_restoration_struct. (horz_)units_per_tile give the number of - // restoration units in (one row of) the largest tile in the frame. The data - // in unit_info is laid out with units_per_tile entries for each tile, which - // have stride horz_units_per_tile. - // - // Even if there are tiles of different sizes, the data in unit_info is laid - // out as if all tiles are of full size. - int units_per_tile; - int vert_units_per_tile, horz_units_per_tile; - RestorationUnitInfo *unit_info; - RestorationStripeBoundaries boundaries; - int optimized_lr; -} RestorationInfo; - -static INLINE void set_default_sgrproj(SgrprojInfo *sgrproj_info) { - sgrproj_info->xqd[0] = (SGRPROJ_PRJ_MIN0 + SGRPROJ_PRJ_MAX0) / 2; - sgrproj_info->xqd[1] = (SGRPROJ_PRJ_MIN1 + SGRPROJ_PRJ_MAX1) / 2; -} - -static INLINE void set_default_wiener(WienerInfo *wiener_info) { - wiener_info->vfilter[0] = wiener_info->hfilter[0] = WIENER_FILT_TAP0_MIDV; - wiener_info->vfilter[1] = wiener_info->hfilter[1] = WIENER_FILT_TAP1_MIDV; - wiener_info->vfilter[2] = wiener_info->hfilter[2] = WIENER_FILT_TAP2_MIDV; - wiener_info->vfilter[WIENER_HALFWIN] = wiener_info->hfilter[WIENER_HALFWIN] = - -2 * - (WIENER_FILT_TAP2_MIDV + WIENER_FILT_TAP1_MIDV + WIENER_FILT_TAP0_MIDV); - wiener_info->vfilter[4] = wiener_info->hfilter[4] = WIENER_FILT_TAP2_MIDV; - wiener_info->vfilter[5] = wiener_info->hfilter[5] = WIENER_FILT_TAP1_MIDV; - wiener_info->vfilter[6] = wiener_info->hfilter[6] = WIENER_FILT_TAP0_MIDV; -} - -typedef struct { - int h_start, h_end, v_start, v_end; -} RestorationTileLimits; - -typedef void (*rest_unit_visitor_t)(const RestorationTileLimits *limits, - const AV1PixelRect *tile_rect, - int rest_unit_idx, void *priv, - int32_t *tmpbuf, - RestorationLineBuffers *rlbs); - -typedef struct FilterFrameCtxt { - const RestorationInfo *rsi; - int tile_stripe0; - int ss_x, ss_y; - int highbd, bit_depth; - uint8_t *data8, *dst8; - int data_stride, dst_stride; - AV1PixelRect tile_rect; -} FilterFrameCtxt; - -typedef struct AV1LrStruct { - rest_unit_visitor_t on_rest_unit; - FilterFrameCtxt ctxt[MAX_MB_PLANE]; - YV12_BUFFER_CONFIG *frame; - YV12_BUFFER_CONFIG *dst; -} AV1LrStruct; - -extern const sgr_params_type sgr_params[SGRPROJ_PARAMS]; -extern int sgrproj_mtable[SGRPROJ_PARAMS][2]; -extern const int32_t x_by_xplus1[256]; -extern const int32_t one_by_x[MAX_NELEM]; - -void av1_alloc_restoration_struct(struct AV1Common *cm, RestorationInfo *rsi, - int is_uv); -void av1_free_restoration_struct(RestorationInfo *rst_info); - -void extend_frame(uint8_t *data, int width, int height, int stride, - int border_horz, int border_vert, int highbd); -void decode_xq(const int *xqd, int *xq, const sgr_params_type *params); - -// Filter a single loop restoration unit. -// -// limits is the limits of the unit. rui gives the mode to use for this unit -// and its coefficients. If striped loop restoration is enabled, rsb contains -// deblocked pixels to use for stripe boundaries; rlbs is just some space to -// use as a scratch buffer. tile_rect gives the limits of the tile containing -// this unit. tile_stripe0 is the index of the first stripe in this tile. -// -// ss_x and ss_y are flags which should be 1 if this is a plane with -// horizontal/vertical subsampling, respectively. highbd is a flag which should -// be 1 in high bit depth mode, in which case bit_depth is the bit depth. -// -// data8 is the frame data (pointing at the top-left corner of the frame, not -// the restoration unit) and stride is its stride. dst8 is the buffer where the -// results will be written and has stride dst_stride. Like data8, dst8 should -// point at the top-left corner of the frame. -// -// Finally tmpbuf is a scratch buffer used by the sgrproj filter which should -// be at least SGRPROJ_TMPBUF_SIZE big. -void av1_loop_restoration_filter_unit( - const RestorationTileLimits *limits, const RestorationUnitInfo *rui, - const RestorationStripeBoundaries *rsb, RestorationLineBuffers *rlbs, - const AV1PixelRect *tile_rect, int tile_stripe0, int ss_x, int ss_y, - int highbd, int bit_depth, uint8_t *data8, int stride, uint8_t *dst8, - int dst_stride, int32_t *tmpbuf, int optimized_lr); - -void av1_loop_restoration_filter_frame(YV12_BUFFER_CONFIG *frame, - struct AV1Common *cm, int optimized_lr, - void *lr_ctxt); -void av1_loop_restoration_precal(); - -typedef void (*rest_tile_start_visitor_t)(int tile_row, int tile_col, - void *priv); -struct AV1LrSyncData; - -typedef void (*sync_read_fn_t)(void *const lr_sync, int r, int c, int plane); - -typedef void (*sync_write_fn_t)(void *const lr_sync, int r, int c, - const int sb_cols, int plane); - -// Call on_rest_unit for each loop restoration unit in the plane. -void av1_foreach_rest_unit_in_plane(const struct AV1Common *cm, int plane, - rest_unit_visitor_t on_rest_unit, - void *priv, AV1PixelRect *tile_rect, - int32_t *tmpbuf, - RestorationLineBuffers *rlbs); - -// Return 1 iff the block at mi_row, mi_col with size bsize is a -// top-level superblock containing the top-left corner of at least one -// loop restoration unit. -// -// If the block is a top-level superblock, the function writes to -// *rcol0, *rcol1, *rrow0, *rrow1. The rectangle of restoration unit -// indices given by [*rcol0, *rcol1) x [*rrow0, *rrow1) are relative -// to the current tile, whose starting index is returned as -// *tile_tl_idx. -int av1_loop_restoration_corners_in_sb(const struct AV1Common *cm, int plane, - int mi_row, int mi_col, BLOCK_SIZE bsize, - int *rcol0, int *rcol1, int *rrow0, - int *rrow1); - -void av1_loop_restoration_save_boundary_lines(const YV12_BUFFER_CONFIG *frame, - struct AV1Common *cm, - int after_cdef); -void av1_loop_restoration_filter_frame_init(AV1LrStruct *lr_ctxt, - YV12_BUFFER_CONFIG *frame, - struct AV1Common *cm, - int optimized_lr, int num_planes); -void av1_loop_restoration_copy_planes(AV1LrStruct *loop_rest_ctxt, - struct AV1Common *cm, int num_planes); -void av1_foreach_rest_unit_in_row( - RestorationTileLimits *limits, const AV1PixelRect *tile_rect, - rest_unit_visitor_t on_rest_unit, int row_number, int unit_size, - int unit_idx0, int hunits_per_tile, int vunits_per_tile, int plane, - void *priv, int32_t *tmpbuf, RestorationLineBuffers *rlbs, - sync_read_fn_t on_sync_read, sync_write_fn_t on_sync_write, - struct AV1LrSyncData *const lr_sync); -AV1PixelRect av1_whole_frame_rect(const struct AV1Common *cm, int is_uv); -int av1_lr_count_units_in_tile(int unit_size, int tile_size); -void av1_lr_sync_read_dummy(void *const lr_sync, int r, int c, int plane); -void av1_lr_sync_write_dummy(void *const lr_sync, int r, int c, - const int sb_cols, int plane); -#ifdef __cplusplus -} // extern "C" -#endif - -#endif // AOM_AV1_COMMON_RESTORATION_H_ |