1 /* 2 * Copyright © 2020, VideoLAN and dav1d authors 3 * Copyright © 2020, Two Orioles, LLC 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright notice, this 10 * list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright notice, 13 * this list of conditions and the following disclaimer in the documentation 14 * and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR 20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifndef DAV1D_SRC_REF_MVS_H 29 #define DAV1D_SRC_REF_MVS_H 30 31 #include <stdint.h> 32 33 #include "dav1d/headers.h" 34 35 #include "common/intops.h" 36 37 #include "src/intra_edge.h" 38 #include "src/tables.h" 39 40 #define INVALID_MV 0x80008000 41 42 typedef struct refmvs_temporal_block { 43 mv mv; 44 int8_t ref; 45 } refmvs_temporal_block; 46 47 typedef union refmvs_refpair { 48 int8_t ref[2]; // [0] = 0: intra=1, [1] = -1: comp=0 49 uint16_t pair; 50 } refmvs_refpair; 51 52 typedef union refmvs_mvpair { 53 mv mv[2]; 54 uint64_t n; 55 } refmvs_mvpair; 56 57 PACKED(typedef struct refmvs_block { 58 refmvs_mvpair mv; 59 refmvs_refpair ref; 60 uint8_t bs, mf; // 1 = globalmv+affine, 2 = newmv 61 }) ALIGN(refmvs_block, 4); 62 63 typedef struct refmvs_frame { 64 const Dav1dFrameHeader *frm_hdr; 65 int iw4, ih4, iw8, ih8; 66 int sbsz; 67 int use_ref_frame_mvs; 68 uint8_t sign_bias[7], mfmv_sign[7]; 69 int8_t pocdiff[7]; 70 uint8_t mfmv_ref[3]; 71 int mfmv_ref2cur[3]; 72 int mfmv_ref2ref[3][7]; 73 int n_mfmvs; 74 75 refmvs_temporal_block *rp; 76 /*const*/ refmvs_temporal_block *const *rp_ref; 77 refmvs_temporal_block *rp_proj; 78 ptrdiff_t rp_stride; 79 80 refmvs_block *r; // 35 x r_stride memory 81 ptrdiff_t r_stride; 82 int n_tile_rows, n_tile_threads, n_frame_threads; 83 } refmvs_frame; 84 85 typedef struct refmvs_tile { 86 const refmvs_frame *rf; 87 refmvs_block *r[32 + 5]; 88 refmvs_temporal_block *rp_proj; 89 struct { 90 int start, end; 91 } tile_col, tile_row; 92 } refmvs_tile; 93 94 typedef struct refmvs_candidate { 95 refmvs_mvpair mv; 96 int weight; 97 } refmvs_candidate; 98 99 #define decl_splat_mv_fn(name) \ 100 void (name)(refmvs_block **rr, const refmvs_block *rmv, int bx4, int bw4, int bh4) 101 typedef decl_splat_mv_fn(*splat_mv_fn); 102 103 typedef struct Dav1dRefmvsDSPContext { 104 splat_mv_fn splat_mv; 105 } Dav1dRefmvsDSPContext; 106 107 // call once per frame thread 108 void dav1d_refmvs_init(refmvs_frame *rf); 109 void dav1d_refmvs_clear(refmvs_frame *rf); 110 111 // call once per frame 112 int dav1d_refmvs_init_frame(refmvs_frame *rf, 113 const Dav1dSequenceHeader *seq_hdr, 114 const Dav1dFrameHeader *frm_hdr, 115 const unsigned ref_poc[7], 116 refmvs_temporal_block *rp, 117 const unsigned ref_ref_poc[7][7], 118 /*const*/ refmvs_temporal_block *const rp_ref[7], 119 int n_tile_threads, int n_frame_threads); 120 121 // initialize temporal MVs; this can be done in any configuration, e.g. one 122 // tile/sbrow at a time, where col_{start,end}8 are the tile boundaries; or 123 // it can just be for the whole frame's sbrow, where col_{start,end}8 are the 124 // frame boundaries. row_{start,end}8 are the superblock row boundaries. 125 void dav1d_refmvs_load_tmvs(const refmvs_frame *rf, int tile_row_idx, 126 int col_start8, int col_end8, 127 int row_start8, int row_end8); 128 129 // cache the current tile/sbrow (or frame/sbrow)'s projectable motion vectors 130 // into buffers for use in future frame's temporal MV prediction 131 void dav1d_refmvs_save_tmvs(const refmvs_tile *rt, 132 int col_start8, int col_end8, 133 int row_start8, int row_end8); 134 135 // initialize tile boundaries and refmvs_block pointers for one tile/sbrow 136 void dav1d_refmvs_tile_sbrow_init(refmvs_tile *rt, const refmvs_frame *rf, 137 int tile_col_start4, int tile_col_end4, 138 int tile_row_start4, int tile_row_end4, 139 int sby, int tile_row_idx, int pass); 140 141 // call for each block 142 void dav1d_refmvs_find(const refmvs_tile *rt, 143 refmvs_candidate mvstack[8], int *cnt, 144 int *ctx, const refmvs_refpair ref, enum BlockSize bs, 145 enum EdgeFlags edge_flags, int by4, int bx4); 146 147 void dav1d_refmvs_dsp_init(Dav1dRefmvsDSPContext *dsp); 148 void dav1d_refmvs_dsp_init_arm(Dav1dRefmvsDSPContext *dsp); 149 void dav1d_refmvs_dsp_init_x86(Dav1dRefmvsDSPContext *dsp); 150 151 #endif /* DAV1D_SRC_REF_MVS_H */ 152