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FFmpeg/libavcodec/vp8dsp.c

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/*
* Copyright (C) 2010 David Conrad
* Copyright (C) 2010 Ronald S. Bultje
* Copyright (C) 2014 Peter Ross
*
* 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
*/
/**
* @file
* VP8 compatible video decoder
*/
#include "libavutil/common.h"
#include "libavutil/intreadwrite.h"
#include "mathops.h"
#include "vp8dsp.h"
#define MK_IDCT_DC_ADD4_C(name) \
static void name ## _idct_dc_add4uv_c(uint8_t *dst, int16_t block[4][16], \
ptrdiff_t stride) \
{ \
name ## _idct_dc_add_c(dst + stride * 0 + 0, block[0], stride); \
name ## _idct_dc_add_c(dst + stride * 0 + 4, block[1], stride); \
name ## _idct_dc_add_c(dst + stride * 4 + 0, block[2], stride); \
name ## _idct_dc_add_c(dst + stride * 4 + 4, block[3], stride); \
} \
\
static void name ## _idct_dc_add4y_c(uint8_t *dst, int16_t block[4][16], \
ptrdiff_t stride) \
{ \
name ## _idct_dc_add_c(dst + 0, block[0], stride); \
name ## _idct_dc_add_c(dst + 4, block[1], stride); \
name ## _idct_dc_add_c(dst + 8, block[2], stride); \
name ## _idct_dc_add_c(dst + 12, block[3], stride); \
}
#if CONFIG_VP7_DECODER
static void vp7_luma_dc_wht_c(int16_t block[4][4][16], int16_t dc[16])
{
int i, a1, b1, c1, d1;
int16_t tmp[16];
for (i = 0; i < 4; i++) {
a1 = (dc[i * 4 + 0] + dc[i * 4 + 2]) * 23170;
b1 = (dc[i * 4 + 0] - dc[i * 4 + 2]) * 23170;
c1 = dc[i * 4 + 1] * 12540 - dc[i * 4 + 3] * 30274;
d1 = dc[i * 4 + 1] * 30274 + dc[i * 4 + 3] * 12540;
tmp[i * 4 + 0] = (a1 + d1) >> 14;
tmp[i * 4 + 3] = (a1 - d1) >> 14;
tmp[i * 4 + 1] = (b1 + c1) >> 14;
tmp[i * 4 + 2] = (b1 - c1) >> 14;
}
for (i = 0; i < 4; i++) {
a1 = (tmp[i + 0] + tmp[i + 8]) * 23170;
b1 = (tmp[i + 0] - tmp[i + 8]) * 23170;
c1 = tmp[i + 4] * 12540 - tmp[i + 12] * 30274;
d1 = tmp[i + 4] * 30274 + tmp[i + 12] * 12540;
AV_ZERO64(dc + i * 4);
block[0][i][0] = (a1 + d1 + 0x20000) >> 18;
block[3][i][0] = (a1 - d1 + 0x20000) >> 18;
block[1][i][0] = (b1 + c1 + 0x20000) >> 18;
block[2][i][0] = (b1 - c1 + 0x20000) >> 18;
}
}
static void vp7_luma_dc_wht_dc_c(int16_t block[4][4][16], int16_t dc[16])
{
int i, val = (23170 * (23170 * dc[0] >> 14) + 0x20000) >> 18;
dc[0] = 0;
for (i = 0; i < 4; i++) {
block[i][0][0] = val;
block[i][1][0] = val;
block[i][2][0] = val;
block[i][3][0] = val;
}
}
static void vp7_idct_add_c(uint8_t *dst, int16_t block[16], ptrdiff_t stride)
{
int i, a1, b1, c1, d1;
int16_t tmp[16];
for (i = 0; i < 4; i++) {
a1 = (block[i * 4 + 0] + block[i * 4 + 2]) * 23170;
b1 = (block[i * 4 + 0] - block[i * 4 + 2]) * 23170;
c1 = block[i * 4 + 1] * 12540 - block[i * 4 + 3] * 30274;
d1 = block[i * 4 + 1] * 30274 + block[i * 4 + 3] * 12540;
AV_ZERO64(block + i * 4);
tmp[i * 4 + 0] = (a1 + d1) >> 14;
tmp[i * 4 + 3] = (a1 - d1) >> 14;
tmp[i * 4 + 1] = (b1 + c1) >> 14;
tmp[i * 4 + 2] = (b1 - c1) >> 14;
}
for (i = 0; i < 4; i++) {
a1 = (tmp[i + 0] + tmp[i + 8]) * 23170;
b1 = (tmp[i + 0] - tmp[i + 8]) * 23170;
c1 = tmp[i + 4] * 12540 - tmp[i + 12] * 30274;
d1 = tmp[i + 4] * 30274 + tmp[i + 12] * 12540;
dst[0 * stride + i] = av_clip_uint8(dst[0 * stride + i] +
((a1 + d1 + 0x20000) >> 18));
dst[3 * stride + i] = av_clip_uint8(dst[3 * stride + i] +
((a1 - d1 + 0x20000) >> 18));
dst[1 * stride + i] = av_clip_uint8(dst[1 * stride + i] +
((b1 + c1 + 0x20000) >> 18));
dst[2 * stride + i] = av_clip_uint8(dst[2 * stride + i] +
((b1 - c1 + 0x20000) >> 18));
}
}
static void vp7_idct_dc_add_c(uint8_t *dst, int16_t block[16], ptrdiff_t stride)
{
int i, dc = (23170 * (23170 * block[0] >> 14) + 0x20000) >> 18;
block[0] = 0;
for (i = 0; i < 4; i++) {
dst[0] = av_clip_uint8(dst[0] + dc);
dst[1] = av_clip_uint8(dst[1] + dc);
dst[2] = av_clip_uint8(dst[2] + dc);
dst[3] = av_clip_uint8(dst[3] + dc);
dst += stride;
}
}
MK_IDCT_DC_ADD4_C(vp7)
#endif /* CONFIG_VP7_DECODER */
// TODO: Maybe add dequant
#if CONFIG_VP8_DECODER
static void vp8_luma_dc_wht_c(int16_t block[4][4][16], int16_t dc[16])
{
int i, t0, t1, t2, t3;
for (i = 0; i < 4; i++) {
t0 = dc[0 * 4 + i] + dc[3 * 4 + i];
t1 = dc[1 * 4 + i] + dc[2 * 4 + i];
t2 = dc[1 * 4 + i] - dc[2 * 4 + i];
t3 = dc[0 * 4 + i] - dc[3 * 4 + i];
dc[0 * 4 + i] = t0 + t1;
dc[1 * 4 + i] = t3 + t2;
dc[2 * 4 + i] = t0 - t1;
dc[3 * 4 + i] = t3 - t2;
}
for (i = 0; i < 4; i++) {
t0 = dc[i * 4 + 0] + dc[i * 4 + 3] + 3; // rounding
t1 = dc[i * 4 + 1] + dc[i * 4 + 2];
t2 = dc[i * 4 + 1] - dc[i * 4 + 2];
t3 = dc[i * 4 + 0] - dc[i * 4 + 3] + 3; // rounding
AV_ZERO64(dc + i * 4);
block[i][0][0] = (t0 + t1) >> 3;
block[i][1][0] = (t3 + t2) >> 3;
block[i][2][0] = (t0 - t1) >> 3;
block[i][3][0] = (t3 - t2) >> 3;
}
}
static void vp8_luma_dc_wht_dc_c(int16_t block[4][4][16], int16_t dc[16])
{
int i, val = (dc[0] + 3) >> 3;
dc[0] = 0;
for (i = 0; i < 4; i++) {
block[i][0][0] = val;
block[i][1][0] = val;
block[i][2][0] = val;
block[i][3][0] = val;
}
}
#define MUL_20091(a) ((((a) * 20091) >> 16) + (a))
#define MUL_35468(a) (((a) * 35468) >> 16)
static void vp8_idct_add_c(uint8_t *dst, int16_t block[16], ptrdiff_t stride)
{
int i, t0, t1, t2, t3;
int16_t tmp[16];
for (i = 0; i < 4; i++) {
t0 = block[0 * 4 + i] + block[2 * 4 + i];
t1 = block[0 * 4 + i] - block[2 * 4 + i];
t2 = MUL_35468(block[1 * 4 + i]) - MUL_20091(block[3 * 4 + i]);
t3 = MUL_20091(block[1 * 4 + i]) + MUL_35468(block[3 * 4 + i]);
block[0 * 4 + i] = 0;
block[1 * 4 + i] = 0;
block[2 * 4 + i] = 0;
block[3 * 4 + i] = 0;
tmp[i * 4 + 0] = t0 + t3;
tmp[i * 4 + 1] = t1 + t2;
tmp[i * 4 + 2] = t1 - t2;
tmp[i * 4 + 3] = t0 - t3;
}
for (i = 0; i < 4; i++) {
t0 = tmp[0 * 4 + i] + tmp[2 * 4 + i];
t1 = tmp[0 * 4 + i] - tmp[2 * 4 + i];
t2 = MUL_35468(tmp[1 * 4 + i]) - MUL_20091(tmp[3 * 4 + i]);
t3 = MUL_20091(tmp[1 * 4 + i]) + MUL_35468(tmp[3 * 4 + i]);
dst[0] = av_clip_uint8(dst[0] + ((t0 + t3 + 4) >> 3));
dst[1] = av_clip_uint8(dst[1] + ((t1 + t2 + 4) >> 3));
dst[2] = av_clip_uint8(dst[2] + ((t1 - t2 + 4) >> 3));
dst[3] = av_clip_uint8(dst[3] + ((t0 - t3 + 4) >> 3));
dst += stride;
}
}
static void vp8_idct_dc_add_c(uint8_t *dst, int16_t block[16], ptrdiff_t stride)
{
int i, dc = (block[0] + 4) >> 3;
block[0] = 0;
for (i = 0; i < 4; i++) {
dst[0] = av_clip_uint8(dst[0] + dc);
dst[1] = av_clip_uint8(dst[1] + dc);
dst[2] = av_clip_uint8(dst[2] + dc);
dst[3] = av_clip_uint8(dst[3] + dc);
dst += stride;
}
}
MK_IDCT_DC_ADD4_C(vp8)
#endif /* CONFIG_VP8_DECODER */
// because I like only having two parameters to pass functions...
#define LOAD_PIXELS \
int av_unused p3 = p[-4 * stride]; \
int av_unused p2 = p[-3 * stride]; \
int av_unused p1 = p[-2 * stride]; \
int av_unused p0 = p[-1 * stride]; \
int av_unused q0 = p[ 0 * stride]; \
int av_unused q1 = p[ 1 * stride]; \
int av_unused q2 = p[ 2 * stride]; \
int av_unused q3 = p[ 3 * stride];
#define clip_int8(n) (cm[n + 0x80] - 0x80)
static av_always_inline void filter_common(uint8_t *p, ptrdiff_t stride,
int is4tap, int is_vp7)
{
LOAD_PIXELS
int a, f1, f2;
const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;
a = 3 * (q0 - p0);
if (is4tap)
a += clip_int8(p1 - q1);
a = clip_int8(a);
// We deviate from the spec here with c(a+3) >> 3
// since that's what libvpx does.
f1 = FFMIN(a + 4, 127) >> 3;
if (is_vp7)
f2 = f1 - ((a & 7) == 4);
else
f2 = FFMIN(a + 3, 127) >> 3;
// Despite what the spec says, we do need to clamp here to
// be bitexact with libvpx.
p[-1 * stride] = cm[p0 + f2];
p[ 0 * stride] = cm[q0 - f1];
// only used for _inner on blocks without high edge variance
if (!is4tap) {
a = (f1 + 1) >> 1;
p[-2 * stride] = cm[p1 + a];
p[ 1 * stride] = cm[q1 - a];
}
}
static av_always_inline void vp7_filter_common(uint8_t *p, ptrdiff_t stride,
int is4tap)
{
filter_common(p, stride, is4tap, IS_VP7);
}
static av_always_inline void vp8_filter_common(uint8_t *p, ptrdiff_t stride,
int is4tap)
{
filter_common(p, stride, is4tap, IS_VP8);
}
static av_always_inline int vp7_simple_limit(uint8_t *p, ptrdiff_t stride,
int flim)
{
LOAD_PIXELS
return FFABS(p0 - q0) <= flim;
}
static av_always_inline int vp8_simple_limit(uint8_t *p, ptrdiff_t stride,
int flim)
{
LOAD_PIXELS
return 2 * FFABS(p0 - q0) + (FFABS(p1 - q1) >> 1) <= flim;
}
/**
* E - limit at the macroblock edge
* I - limit for interior difference
*/
#define NORMAL_LIMIT(vpn) \
static av_always_inline int vp ## vpn ## _normal_limit(uint8_t *p, \
ptrdiff_t stride, \
int E, int I) \
{ \
LOAD_PIXELS \
return vp ## vpn ## _simple_limit(p, stride, E) && \
FFABS(p3 - p2) <= I && FFABS(p2 - p1) <= I && \
FFABS(p1 - p0) <= I && FFABS(q3 - q2) <= I && \
FFABS(q2 - q1) <= I && FFABS(q1 - q0) <= I; \
}
NORMAL_LIMIT(7)
NORMAL_LIMIT(8)
// high edge variance
static av_always_inline int hev(uint8_t *p, ptrdiff_t stride, int thresh)
{
LOAD_PIXELS
return FFABS(p1 - p0) > thresh || FFABS(q1 - q0) > thresh;
}
static av_always_inline void filter_mbedge(uint8_t *p, ptrdiff_t stride)
{
int a0, a1, a2, w;
const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;
LOAD_PIXELS
w = clip_int8(p1 - q1);
w = clip_int8(w + 3 * (q0 - p0));
a0 = (27 * w + 63) >> 7;
a1 = (18 * w + 63) >> 7;
a2 = (9 * w + 63) >> 7;
p[-3 * stride] = cm[p2 + a2];
p[-2 * stride] = cm[p1 + a1];
p[-1 * stride] = cm[p0 + a0];
p[ 0 * stride] = cm[q0 - a0];
p[ 1 * stride] = cm[q1 - a1];
p[ 2 * stride] = cm[q2 - a2];
}
#define LOOP_FILTER(vpn, dir, size, stridea, strideb, maybe_inline) \
static maybe_inline \
void vpn ## _ ## dir ## _loop_filter ## size ## _c(uint8_t *dst, \
ptrdiff_t stride, \
int flim_E, int flim_I, \
int hev_thresh) \
{ \
int i; \
for (i = 0; i < size; i++) \
if (vpn ## _normal_limit(dst + i * stridea, strideb, \
flim_E, flim_I)) { \
if (hev(dst + i * stridea, strideb, hev_thresh)) \
vpn ## _filter_common(dst + i * stridea, strideb, 1); \
else \
filter_mbedge(dst + i * stridea, strideb); \
} \
} \
\
static maybe_inline \
void vpn ## _ ## dir ## _loop_filter ## size ## _inner_c(uint8_t *dst, \
ptrdiff_t stride, \
int flim_E, \
int flim_I, \
int hev_thresh) \
{ \
int i; \
for (i = 0; i < size; i++) \
if (vpn ## _normal_limit(dst + i * stridea, strideb, \
flim_E, flim_I)) { \
int hv = hev(dst + i * stridea, strideb, hev_thresh); \
if (hv) \
vpn ## _filter_common(dst + i * stridea, strideb, 1); \
else \
vpn ## _filter_common(dst + i * stridea, strideb, 0); \
} \
}
#define UV_LOOP_FILTER(vpn, dir, stridea, strideb) \
LOOP_FILTER(vpn, dir, 8, stridea, strideb, av_always_inline) \
static void vpn ## _ ## dir ## _loop_filter8uv_c(uint8_t *dstU, \
uint8_t *dstV, \
ptrdiff_t stride, int fE, \
int fI, int hev_thresh) \
{ \
vpn ## _ ## dir ## _loop_filter8_c(dstU, stride, fE, fI, hev_thresh); \
vpn ## _ ## dir ## _loop_filter8_c(dstV, stride, fE, fI, hev_thresh); \
} \
\
static void vpn ## _ ## dir ## _loop_filter8uv_inner_c(uint8_t *dstU, \
uint8_t *dstV, \
ptrdiff_t stride, \
int fE, int fI, \
int hev_thresh) \
{ \
vpn ## _ ## dir ## _loop_filter8_inner_c(dstU, stride, fE, fI, \
hev_thresh); \
vpn ## _ ## dir ## _loop_filter8_inner_c(dstV, stride, fE, fI, \
hev_thresh); \
}
#define LOOP_FILTER_SIMPLE(vpn) \
static void vpn ## _v_loop_filter_simple_c(uint8_t *dst, ptrdiff_t stride, \
int flim) \
{ \
int i; \
for (i = 0; i < 16; i++) \
if (vpn ## _simple_limit(dst + i, stride, flim)) \
vpn ## _filter_common(dst + i, stride, 1); \
} \
\
static void vpn ## _h_loop_filter_simple_c(uint8_t *dst, ptrdiff_t stride, \
int flim) \
{ \
int i; \
for (i = 0; i < 16; i++) \
if (vpn ## _simple_limit(dst + i * stride, 1, flim)) \
vpn ## _filter_common(dst + i * stride, 1, 1); \
}
#define LOOP_FILTERS(vpn) \
LOOP_FILTER(vpn, v, 16, 1, stride, ) \
LOOP_FILTER(vpn, h, 16, stride, 1, ) \
UV_LOOP_FILTER(vpn, v, 1, stride) \
UV_LOOP_FILTER(vpn, h, stride, 1) \
LOOP_FILTER_SIMPLE(vpn) \
static const uint8_t subpel_filters[7][6] = {
{ 0, 6, 123, 12, 1, 0 },
{ 2, 11, 108, 36, 8, 1 },
{ 0, 9, 93, 50, 6, 0 },
{ 3, 16, 77, 77, 16, 3 },
{ 0, 6, 50, 93, 9, 0 },
{ 1, 8, 36, 108, 11, 2 },
{ 0, 1, 12, 123, 6, 0 },
};
#define PUT_PIXELS(WIDTH) \
static void put_vp8_pixels ## WIDTH ## _c(uint8_t *dst, ptrdiff_t dststride, \
uint8_t *src, ptrdiff_t srcstride, \
int h, int x, int y) \
{ \
int i; \
for (i = 0; i < h; i++, dst += dststride, src += srcstride) \
memcpy(dst, src, WIDTH); \
}
PUT_PIXELS(16)
PUT_PIXELS(8)
PUT_PIXELS(4)
#define FILTER_6TAP(src, F, stride) \
cm[(F[2] * src[x + 0 * stride] - F[1] * src[x - 1 * stride] + \
F[0] * src[x - 2 * stride] + F[3] * src[x + 1 * stride] - \
F[4] * src[x + 2 * stride] + F[5] * src[x + 3 * stride] + 64) >> 7]
#define FILTER_4TAP(src, F, stride) \
cm[(F[2] * src[x + 0 * stride] - F[1] * src[x - 1 * stride] + \
F[3] * src[x + 1 * stride] - F[4] * src[x + 2 * stride] + 64) >> 7]
#define VP8_EPEL_H(SIZE, TAPS) \
static void put_vp8_epel ## SIZE ## _h ## TAPS ## _c(uint8_t *dst, \
ptrdiff_t dststride, \
uint8_t *src, \
ptrdiff_t srcstride, \
int h, int mx, int my) \
{ \
const uint8_t *filter = subpel_filters[mx - 1]; \
const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP; \
int x, y; \
for (y = 0; y < h; y++) { \
for (x = 0; x < SIZE; x++) \
dst[x] = FILTER_ ## TAPS ## TAP(src, filter, 1); \
dst += dststride; \
src += srcstride; \
} \
}
#define VP8_EPEL_V(SIZE, TAPS) \
static void put_vp8_epel ## SIZE ## _v ## TAPS ## _c(uint8_t *dst, \
ptrdiff_t dststride, \
uint8_t *src, \
ptrdiff_t srcstride, \
int h, int mx, int my) \
{ \
const uint8_t *filter = subpel_filters[my - 1]; \
const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP; \
int x, y; \
for (y = 0; y < h; y++) { \
for (x = 0; x < SIZE; x++) \
dst[x] = FILTER_ ## TAPS ## TAP(src, filter, srcstride); \
dst += dststride; \
src += srcstride; \
} \
}
#define VP8_EPEL_HV(SIZE, HTAPS, VTAPS) \
static void \
put_vp8_epel ## SIZE ## _h ## HTAPS ## v ## VTAPS ## _c(uint8_t *dst, \
ptrdiff_t dststride, \
uint8_t *src, \
ptrdiff_t srcstride, \
int h, int mx, \
int my) \
{ \
const uint8_t *filter = subpel_filters[mx - 1]; \
const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP; \
int x, y; \
uint8_t tmp_array[(2 * SIZE + VTAPS - 1) * SIZE]; \
uint8_t *tmp = tmp_array; \
src -= (2 - (VTAPS == 4)) * srcstride; \
\
for (y = 0; y < h + VTAPS - 1; y++) { \
for (x = 0; x < SIZE; x++) \
tmp[x] = FILTER_ ## HTAPS ## TAP(src, filter, 1); \
tmp += SIZE; \
src += srcstride; \
} \
tmp = tmp_array + (2 - (VTAPS == 4)) * SIZE; \
filter = subpel_filters[my - 1]; \
\
for (y = 0; y < h; y++) { \
for (x = 0; x < SIZE; x++) \
dst[x] = FILTER_ ## VTAPS ## TAP(tmp, filter, SIZE); \
dst += dststride; \
tmp += SIZE; \
} \
}
VP8_EPEL_H(16, 4)
VP8_EPEL_H(8, 4)
VP8_EPEL_H(4, 4)
VP8_EPEL_H(16, 6)
VP8_EPEL_H(8, 6)
VP8_EPEL_H(4, 6)
VP8_EPEL_V(16, 4)
VP8_EPEL_V(8, 4)
VP8_EPEL_V(4, 4)
VP8_EPEL_V(16, 6)
VP8_EPEL_V(8, 6)
VP8_EPEL_V(4, 6)
VP8_EPEL_HV(16, 4, 4)
VP8_EPEL_HV(8, 4, 4)
VP8_EPEL_HV(4, 4, 4)
VP8_EPEL_HV(16, 4, 6)
VP8_EPEL_HV(8, 4, 6)
VP8_EPEL_HV(4, 4, 6)
VP8_EPEL_HV(16, 6, 4)
VP8_EPEL_HV(8, 6, 4)
VP8_EPEL_HV(4, 6, 4)
VP8_EPEL_HV(16, 6, 6)
VP8_EPEL_HV(8, 6, 6)
VP8_EPEL_HV(4, 6, 6)
#define VP8_BILINEAR(SIZE) \
static void put_vp8_bilinear ## SIZE ## _h_c(uint8_t *dst, ptrdiff_t dstride, \
uint8_t *src, ptrdiff_t sstride, \
int h, int mx, int my) \
{ \
int a = 8 - mx, b = mx; \
int x, y; \
for (y = 0; y < h; y++) { \
for (x = 0; x < SIZE; x++) \
dst[x] = (a * src[x] + b * src[x + 1] + 4) >> 3; \
dst += dstride; \
src += sstride; \
} \
} \
\
static void put_vp8_bilinear ## SIZE ## _v_c(uint8_t *dst, ptrdiff_t dstride, \
uint8_t *src, ptrdiff_t sstride, \
int h, int mx, int my) \
{ \
int c = 8 - my, d = my; \
int x, y; \
for (y = 0; y < h; y++) { \
for (x = 0; x < SIZE; x++) \
dst[x] = (c * src[x] + d * src[x + sstride] + 4) >> 3; \
dst += dstride; \
src += sstride; \
} \
} \
\
static void put_vp8_bilinear ## SIZE ## _hv_c(uint8_t *dst, \
ptrdiff_t dstride, \
uint8_t *src, \
ptrdiff_t sstride, \
int h, int mx, int my) \
{ \
int a = 8 - mx, b = mx; \
int c = 8 - my, d = my; \
int x, y; \
uint8_t tmp_array[(2 * SIZE + 1) * SIZE]; \
uint8_t *tmp = tmp_array; \
for (y = 0; y < h + 1; y++) { \
for (x = 0; x < SIZE; x++) \
tmp[x] = (a * src[x] + b * src[x + 1] + 4) >> 3; \
tmp += SIZE; \
src += sstride; \
} \
tmp = tmp_array; \
for (y = 0; y < h; y++) { \
for (x = 0; x < SIZE; x++) \
dst[x] = (c * tmp[x] + d * tmp[x + SIZE] + 4) >> 3; \
dst += dstride; \
tmp += SIZE; \
} \
}
VP8_BILINEAR(16)
VP8_BILINEAR(8)
VP8_BILINEAR(4)
#define VP78_MC_FUNC(IDX, SIZE) \
dsp->put_vp8_epel_pixels_tab[IDX][0][0] = put_vp8_pixels ## SIZE ## _c; \
dsp->put_vp8_epel_pixels_tab[IDX][0][1] = put_vp8_epel ## SIZE ## _h4_c; \
dsp->put_vp8_epel_pixels_tab[IDX][0][2] = put_vp8_epel ## SIZE ## _h6_c; \
dsp->put_vp8_epel_pixels_tab[IDX][1][0] = put_vp8_epel ## SIZE ## _v4_c; \
dsp->put_vp8_epel_pixels_tab[IDX][1][1] = put_vp8_epel ## SIZE ## _h4v4_c; \
dsp->put_vp8_epel_pixels_tab[IDX][1][2] = put_vp8_epel ## SIZE ## _h6v4_c; \
dsp->put_vp8_epel_pixels_tab[IDX][2][0] = put_vp8_epel ## SIZE ## _v6_c; \
dsp->put_vp8_epel_pixels_tab[IDX][2][1] = put_vp8_epel ## SIZE ## _h4v6_c; \
dsp->put_vp8_epel_pixels_tab[IDX][2][2] = put_vp8_epel ## SIZE ## _h6v6_c
#define VP78_BILINEAR_MC_FUNC(IDX, SIZE) \
dsp->put_vp8_bilinear_pixels_tab[IDX][0][0] = put_vp8_pixels ## SIZE ## _c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][0][1] = put_vp8_bilinear ## SIZE ## _h_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][0][2] = put_vp8_bilinear ## SIZE ## _h_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][1][0] = put_vp8_bilinear ## SIZE ## _v_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][1][1] = put_vp8_bilinear ## SIZE ## _hv_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][1][2] = put_vp8_bilinear ## SIZE ## _hv_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][2][0] = put_vp8_bilinear ## SIZE ## _v_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][2][1] = put_vp8_bilinear ## SIZE ## _hv_c; \
dsp->put_vp8_bilinear_pixels_tab[IDX][2][2] = put_vp8_bilinear ## SIZE ## _hv_c
av_cold void ff_vp78dsp_init(VP8DSPContext *dsp)
{
VP78_MC_FUNC(0, 16);
VP78_MC_FUNC(1, 8);
VP78_MC_FUNC(2, 4);
VP78_BILINEAR_MC_FUNC(0, 16);
VP78_BILINEAR_MC_FUNC(1, 8);
VP78_BILINEAR_MC_FUNC(2, 4);
if (ARCH_ARM)
ff_vp78dsp_init_arm(dsp);
if (ARCH_PPC)
ff_vp78dsp_init_ppc(dsp);
if (ARCH_X86)
ff_vp78dsp_init_x86(dsp);
}
#if CONFIG_VP7_DECODER
LOOP_FILTERS(vp7)
av_cold void ff_vp7dsp_init(VP8DSPContext *dsp)
{
dsp->vp8_luma_dc_wht = vp7_luma_dc_wht_c;
dsp->vp8_luma_dc_wht_dc = vp7_luma_dc_wht_dc_c;
dsp->vp8_idct_add = vp7_idct_add_c;
dsp->vp8_idct_dc_add = vp7_idct_dc_add_c;
dsp->vp8_idct_dc_add4y = vp7_idct_dc_add4y_c;
dsp->vp8_idct_dc_add4uv = vp7_idct_dc_add4uv_c;
dsp->vp8_v_loop_filter16y = vp7_v_loop_filter16_c;
dsp->vp8_h_loop_filter16y = vp7_h_loop_filter16_c;
dsp->vp8_v_loop_filter8uv = vp7_v_loop_filter8uv_c;
dsp->vp8_h_loop_filter8uv = vp7_h_loop_filter8uv_c;
dsp->vp8_v_loop_filter16y_inner = vp7_v_loop_filter16_inner_c;
dsp->vp8_h_loop_filter16y_inner = vp7_h_loop_filter16_inner_c;
dsp->vp8_v_loop_filter8uv_inner = vp7_v_loop_filter8uv_inner_c;
dsp->vp8_h_loop_filter8uv_inner = vp7_h_loop_filter8uv_inner_c;
dsp->vp8_v_loop_filter_simple = vp7_v_loop_filter_simple_c;
dsp->vp8_h_loop_filter_simple = vp7_h_loop_filter_simple_c;
}
#endif /* CONFIG_VP7_DECODER */
#if CONFIG_VP8_DECODER
LOOP_FILTERS(vp8)
av_cold void ff_vp8dsp_init(VP8DSPContext *dsp)
{
dsp->vp8_luma_dc_wht = vp8_luma_dc_wht_c;
dsp->vp8_luma_dc_wht_dc = vp8_luma_dc_wht_dc_c;
dsp->vp8_idct_add = vp8_idct_add_c;
dsp->vp8_idct_dc_add = vp8_idct_dc_add_c;
dsp->vp8_idct_dc_add4y = vp8_idct_dc_add4y_c;
dsp->vp8_idct_dc_add4uv = vp8_idct_dc_add4uv_c;
dsp->vp8_v_loop_filter16y = vp8_v_loop_filter16_c;
dsp->vp8_h_loop_filter16y = vp8_h_loop_filter16_c;
dsp->vp8_v_loop_filter8uv = vp8_v_loop_filter8uv_c;
dsp->vp8_h_loop_filter8uv = vp8_h_loop_filter8uv_c;
dsp->vp8_v_loop_filter16y_inner = vp8_v_loop_filter16_inner_c;
dsp->vp8_h_loop_filter16y_inner = vp8_h_loop_filter16_inner_c;
dsp->vp8_v_loop_filter8uv_inner = vp8_v_loop_filter8uv_inner_c;
dsp->vp8_h_loop_filter8uv_inner = vp8_h_loop_filter8uv_inner_c;
dsp->vp8_v_loop_filter_simple = vp8_v_loop_filter_simple_c;
dsp->vp8_h_loop_filter_simple = vp8_h_loop_filter_simple_c;
if (ARCH_ARM)
ff_vp8dsp_init_arm(dsp);
if (ARCH_X86)
ff_vp8dsp_init_x86(dsp);
}
#endif /* CONFIG_VP8_DECODER */