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Diffstat (limited to 'third_party/dav1d/src/refmvs.h')
| -rw-r--r-- | third_party/dav1d/src/refmvs.h | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/third_party/dav1d/src/refmvs.h b/third_party/dav1d/src/refmvs.h new file mode 100644 index 0000000000..70dc9678dd --- /dev/null +++ b/third_party/dav1d/src/refmvs.h @@ -0,0 +1,176 @@ +/* + * 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/tables.h" + +#define INVALID_MV 0x80008000 + +PACKED(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; + +PACKED(typedef struct refmvs_block { + refmvs_mvpair mv; + refmvs_refpair ref; + uint8_t bs, mf; // 1 = globalmv+affine, 2 = newmv +}) ALIGN(refmvs_block, 4); + +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, n_frame_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; + +// 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. +#define decl_load_tmvs_fn(name) \ +void (name)(const refmvs_frame *rf, int tile_row_idx, \ + int col_start8, int col_end8, int row_start8, int row_end8) +typedef decl_load_tmvs_fn(*load_tmvs_fn); + +#define decl_save_tmvs_fn(name) \ +void (name)(refmvs_temporal_block *rp, const ptrdiff_t stride, \ + refmvs_block *const *const rr, const uint8_t *const ref_sign, \ + int col_end8, int row_end8, int col_start8, int row_start8) +typedef decl_save_tmvs_fn(*save_tmvs_fn); + +#define decl_splat_mv_fn(name) \ +void (name)(refmvs_block **rr, const refmvs_block *rmv, int bx4, int bw4, int bh4) +typedef decl_splat_mv_fn(*splat_mv_fn); + +typedef struct Dav1dRefmvsDSPContext { + load_tmvs_fn load_tmvs; + save_tmvs_fn save_tmvs; + splat_mv_fn splat_mv; +} Dav1dRefmvsDSPContext; + +// 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, int n_frame_threads); + +// cache the current tile/sbrow (or frame/sbrow)'s projectable motion vectors +// into buffers for use in future frame's temporal MV prediction +static inline void dav1d_refmvs_save_tmvs(const Dav1dRefmvsDSPContext *const dsp, + const refmvs_tile *const rt, + const int col_start8, int col_end8, + const int row_start8, int row_end8) +{ + const refmvs_frame *const rf = rt->rf; + + assert(row_start8 >= 0); + assert((unsigned) (row_end8 - row_start8) <= 16U); + row_end8 = imin(row_end8, rf->ih8); + col_end8 = imin(col_end8, rf->iw8); + + const ptrdiff_t stride = rf->rp_stride; + const uint8_t *const ref_sign = rf->mfmv_sign; + refmvs_temporal_block *rp = &rf->rp[row_start8 * stride]; + + dsp->save_tmvs(rp, stride, rt->r + 6, ref_sign, + col_end8, row_end8, col_start8, row_start8); +} + +// 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, int pass); + +// 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); + +void dav1d_refmvs_dsp_init(Dav1dRefmvsDSPContext *dsp); +void dav1d_refmvs_dsp_init_arm(Dav1dRefmvsDSPContext *dsp); +void dav1d_refmvs_dsp_init_x86(Dav1dRefmvsDSPContext *dsp); + +#endif /* DAV1D_SRC_REF_MVS_H */ |