ref: c5d283bd8c298143188e454e47a2ce78acc5f265
dir: /src/looprestoration.h/
/* * Copyright © 2018, VideoLAN and dav1d authors * Copyright © 2018, 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_LOOPRESTORATION_H__ #define __DAV1D_SRC_LOOPRESTORATION_H__ #include <stdint.h> #include <stddef.h> #include "common/bitdepth.h" enum LrEdgeFlags { LR_HAVE_LEFT = 1 << 0, LR_HAVE_RIGHT = 1 << 1, LR_HAVE_TOP = 1 << 2, LR_HAVE_BOTTOM = 1 << 3, }; // Although the spec applies restoration filters over 4x4 blocks, the wiener // filter can be applied to a bigger surface. // * w is constrained by the restoration unit size (w <= 256) // * h is constrained by the stripe height (h <= 64) typedef void (*wienerfilter_fn)(pixel *dst, ptrdiff_t dst_stride, const pixel *lpf, ptrdiff_t lpf_stride, int w, int h, const int16_t filterh[7], const int16_t filterv[7], enum LrEdgeFlags edges); typedef void (*selfguided_fn)(pixel *dst, ptrdiff_t dst_stride, const pixel *lpf, ptrdiff_t lpf_stride, int w, int h, int sgr_idx, const int16_t sgr_w[2], const enum LrEdgeFlags edges); typedef struct Dav1dLoopRestorationDSPContext { wienerfilter_fn wiener; selfguided_fn selfguided; } Dav1dLoopRestorationDSPContext; void dav1d_loop_restoration_dsp_init_8bpc(Dav1dLoopRestorationDSPContext *c); void dav1d_loop_restoration_dsp_init_10bpc(Dav1dLoopRestorationDSPContext *c); #endif /* __DAV1D_SRC_LOOPRESTORATION_H__ */