ref: 36f6d83c282b849f8d1b6588f636a94c2bbfc2b7
dir: /src/refmvs.h/
/* * Copyright © 2020, VideoLAN and dav1d authors * Copyright © 2020, Two Orioles, LLC * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef DAV1D_SRC_REF_MVS_H #define DAV1D_SRC_REF_MVS_H #include <stdint.h> #include "dav1d/headers.h" #include "common/intops.h" #include "src/intra_edge.h" #include "src/levels.h" #include "src/tables.h" #define INVALID_MV 0x80008000 typedef struct refmvs_temporal_block { mv mv; int8_t ref; } refmvs_temporal_block; typedef union refmvs_refpair { int8_t ref[2]; // [0] = 0: intra=1, [1] = -1: comp=0 uint16_t pair; } refmvs_refpair; typedef union refmvs_mvpair { mv mv[2]; uint64_t n; } refmvs_mvpair; typedef struct refmvs_block { refmvs_mvpair mv; refmvs_refpair ref; uint8_t bs, mf; // 1 = globalmv+affine, 2 = newmv } refmvs_block; typedef struct refmvs_frame { const Dav1dFrameHeader *frm_hdr; int iw4, ih4, iw8, ih8; int sbsz; int use_ref_frame_mvs; uint8_t sign_bias[7], mfmv_sign[7]; int8_t pocdiff[7]; uint8_t mfmv_ref[3]; int mfmv_ref2cur[3]; int mfmv_ref2ref[3][7]; int n_mfmvs; refmvs_temporal_block *rp; /*const*/ refmvs_temporal_block *const *rp_ref; refmvs_temporal_block *rp_proj; ptrdiff_t rp_stride; refmvs_block *r; // 35 x r_stride memory ptrdiff_t r_stride; int n_tile_rows, n_tile_threads; } refmvs_frame; typedef struct refmvs_tile { const refmvs_frame *rf; refmvs_block *r[32 + 5]; refmvs_temporal_block *rp_proj; struct { int start, end; } tile_col, tile_row; } refmvs_tile; typedef struct refmvs_candidate { refmvs_mvpair mv; int weight; } refmvs_candidate; // call once per frame thread void dav1d_refmvs_init(refmvs_frame *rf); void dav1d_refmvs_clear(refmvs_frame *rf); // call once per frame int dav1d_refmvs_init_frame(refmvs_frame *rf, const Dav1dSequenceHeader *seq_hdr, const Dav1dFrameHeader *frm_hdr, const unsigned ref_poc[7], refmvs_temporal_block *rp, const unsigned ref_ref_poc[7][7], /*const*/ refmvs_temporal_block *const rp_ref[7], int n_tile_threads); // initialize temporal MVs; this can be done in any configuration, e.g. one // tile/sbrow at a time, where col_{start,end}8 are the tile boundaries; or // it can just be for the whole frame's sbrow, where col_{start,end}8 are the // frame boundaries. row_{start,end}8 are the superblock row boundaries. void dav1d_refmvs_load_tmvs(const refmvs_frame *rf, int tile_row_idx, int col_start8, int col_end8, int row_start8, int row_end8); // cache the current tile/sbrow (or frame/sbrow)'s projectable motion vectors // into buffers for use in future frame's temporal MV prediction void dav1d_refmvs_save_tmvs(const refmvs_tile *rt, int col_start8, int col_end8, int row_start8, int row_end8); // initialize tile boundaries and refmvs_block pointers for one tile/sbrow void dav1d_refmvs_tile_sbrow_init(refmvs_tile *rt, const refmvs_frame *rf, int tile_col_start4, int tile_col_end4, int tile_row_start4, int tile_row_end4, int sby, int tile_row_idx); // call for each block void dav1d_refmvs_find(const refmvs_tile *rt, refmvs_candidate mvstack[8], int *cnt, int *ctx, const refmvs_refpair ref, enum BlockSize bs, enum EdgeFlags edge_flags, int by4, int bx4); static inline void splat_oneref_mv(refmvs_tile *const rt, const int by4, const int bx4, const enum BlockSize bs, const enum InterPredMode mode, const int ref, const mv mv, const int is_interintra) { const int bw4 = dav1d_block_dimensions[bs][0]; int bh4 = dav1d_block_dimensions[bs][1]; refmvs_block **rr = &rt->r[(by4 & 31) + 5]; const refmvs_block tmpl = (refmvs_block) { .ref.ref = { ref + 1, is_interintra ? 0 : -1 }, .mv.mv[0] = mv, .bs = bs, .mf = (mode == GLOBALMV && imin(bw4, bh4) >= 2) | ((mode == NEWMV) * 2), }; do { refmvs_block *r = *rr++ + bx4; for (int x = 0; x < bw4; x++) r[x] = tmpl; } while (--bh4); } static inline void splat_intrabc_mv(refmvs_tile *const rt, const int by4, const int bx4, const enum BlockSize bs, const mv mv) { const int bw4 = dav1d_block_dimensions[bs][0]; int bh4 = dav1d_block_dimensions[bs][1]; refmvs_block **rr = &rt->r[(by4 & 31) + 5]; const refmvs_block tmpl = (refmvs_block) { .ref.ref = { 0, -1 }, .mv.mv[0] = mv, .bs = bs, .mf = 0, }; do { refmvs_block *r = *rr++ + bx4; for (int x = 0; x < bw4; x++) { r[x] = tmpl; } } while (--bh4); } static inline void splat_tworef_mv(refmvs_tile *const rt, const int by4, const int bx4, const enum BlockSize bs, const enum CompInterPredMode mode, const refmvs_refpair ref, const refmvs_mvpair mv) { const int bw4 = dav1d_block_dimensions[bs][0]; int bh4 = dav1d_block_dimensions[bs][1]; refmvs_block **rr = &rt->r[(by4 & 31) + 5]; assert(bw4 >= 2 && bh4 >= 2); const refmvs_block tmpl = (refmvs_block) { .ref.pair = ref.pair + 0x0101, .mv = mv, .bs = bs, .mf = (mode == GLOBALMV_GLOBALMV) | !!((1 << mode) & (0xbc)) * 2, }; do { refmvs_block *r = *rr++ + bx4; for (int x = 0; x < bw4; x++) r[x] = tmpl; } while (--bh4); } static inline void splat_intraref(refmvs_tile *const rt, const int by4, const int bx4, const enum BlockSize bs) { const int bw4 = dav1d_block_dimensions[bs][0]; int bh4 = dav1d_block_dimensions[bs][1]; refmvs_block **rr = &rt->r[(by4 & 31) + 5]; const refmvs_block tmpl = (refmvs_block) { .ref.ref = { 0, -1 }, .mv.mv[0].n = INVALID_MV, .bs = bs, .mf = 0, }; do { refmvs_block *r = *rr++ + bx4; for (int x = 0; x < bw4; x++) { r[x] = tmpl; } } while (--bh4); } #endif /* DAV1D_SRC_REF_MVS_H */