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/*
* VVC transform and residual DSP
*
* Copyright (C) 2021 Nuo Mi
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/frame.h"
#include "libavcodec/bit_depth_template.c"
#include "dec.h"
#include "data.h"
#include "inter_template.c"
#include "intra_template.c"
#include "filter_template.c"
static void FUNC(add_residual)(uint8_t *_dst, const int *res,
const int w, const int h, const ptrdiff_t _stride)
{
pixel *dst = (pixel *)_dst;
const int stride = _stride / sizeof(pixel);
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x++) {
dst[x] = av_clip_pixel(dst[x] + *res);
res++;
}
dst += stride;
}
}
static void FUNC(add_residual_joint)(uint8_t *_dst, const int *res,
const int w, const int h, const ptrdiff_t _stride, const int c_sign, const int shift)
{
pixel *dst = (pixel *)_dst;
const int stride = _stride / sizeof(pixel);
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x++) {
const int r = ((*res) * c_sign) >> shift;
dst[x] = av_clip_pixel(dst[x] + r);
res++;
}
dst += stride;
}
}
static void FUNC(pred_residual_joint)(int *buf, const int w, const int h,
const int c_sign, const int shift)
{
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x++) {
*buf = ((*buf) * c_sign) >> shift;
buf++;
}
}
}
static void FUNC(transform_bdpcm)(int *coeffs, const int width, const int height,
const int vertical, const int log2_transform_range)
{
int x, y;
if (vertical) {
coeffs += width;
for (y = 0; y < height - 1; y++) {
for (x = 0; x < width; x++)
coeffs[x] = av_clip_intp2(coeffs[x] + coeffs[x - width], log2_transform_range);
coeffs += width;
}
} else {
for (y = 0; y < height; y++) {
for (x = 1; x < width; x++)
coeffs[x] = av_clip_intp2(coeffs[x] + coeffs[x - 1], log2_transform_range);
coeffs += width;
}
}
}
static void FUNC(ff_vvc_itx_dsp_init)(VVCItxDSPContext *const itx)
{
#define VVC_ITX(TYPE, type, s) \
itx->itx[VVC_##TYPE][VVC_##TX_SIZE_##s] = ff_vvc_inv_##type##_##s; \
#define VVC_ITX_COMMON(TYPE, type) \
VVC_ITX(TYPE, type, 4); \
VVC_ITX(TYPE, type, 8); \
VVC_ITX(TYPE, type, 16); \
VVC_ITX(TYPE, type, 32);
itx->add_residual = FUNC(add_residual);
itx->add_residual_joint = FUNC(add_residual_joint);
itx->pred_residual_joint = FUNC(pred_residual_joint);
itx->transform_bdpcm = FUNC(transform_bdpcm);
VVC_ITX(DCT2, dct2, 2)
VVC_ITX(DCT2, dct2, 64)
VVC_ITX_COMMON(DCT2, dct2)
VVC_ITX_COMMON(DCT8, dct8)
VVC_ITX_COMMON(DST7, dst7)
#undef VVC_ITX
#undef VVC_ITX_COMMON
}
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