chromium/third_party/libaom/source/libaom/av1/encoder/dwt.c

/*
 * Copyright (c) 2018, Alliance for Open Media. All rights reserved.
 *
 * This source code is subject to the terms of the BSD 2 Clause License and
 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
 * was not distributed with this source code in the LICENSE file, you can
 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
 * Media Patent License 1.0 was not distributed with this source code in the
 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 */

#include <assert.h>
#include <stdlib.h>
#include <math.h>

#include "config/av1_rtcd.h"
#include "av1/encoder/dwt.h"

// Note: block length must be even for this implementation
static void analysis_53_row(int length, tran_low_t *x, tran_low_t *lowpass,
                            tran_low_t *highpass) { … }

static void analysis_53_col(int length, tran_low_t *x, tran_low_t *lowpass,
                            tran_low_t *highpass) { … }

static void dyadic_analyze_53_uint8_input(int levels, int width, int height,
                                          const uint8_t *x, int pitch_x,
                                          tran_low_t *c, int pitch_c,
                                          int dwt_scale_bits, int hbd) { … }

void av1_fdwt8x8_uint8_input_c(const uint8_t *input, tran_low_t *output,
                               int stride, int hbd) { … }

static int haar_ac_sad(const tran_low_t *output, int bw, int bh, int stride) { … }

static int haar_ac_sad_8x8_uint8_input(const uint8_t *input, int stride,
                                       int hbd) { … }

int64_t av1_haar_ac_sad_mxn_uint8_input(const uint8_t *input, int stride,
                                        int hbd, int num_8x8_rows,
                                        int num_8x8_cols) { … }