FFmpeg
libavfilter
colorspacedsp.c
Go to the documentation of this file.
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/*
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* Copyright (c) 2016 Ronald S. Bultje <rsbultje@gmail.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "
libavutil/common.h
"
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#include "
colorspacedsp.h
"
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/*
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* SS_W/H stands for "subsampling_w/h"
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* it's analogous to AVPixFmtDescriptor->log2_chroma_w/h.
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*/
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#define SS_W 0
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#define SS_H 0
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#define BIT_DEPTH 8
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#include "
colorspacedsp_template.c
"
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#undef BIT_DEPTH
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#define BIT_DEPTH 10
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#include "
colorspacedsp_template.c
"
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#undef BIT_DEPTH
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#define BIT_DEPTH 12
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#include "
colorspacedsp_template.c
"
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#undef SS_W
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#undef SS_H
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#define SS_W 1
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#define SS_H 0
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#undef BIT_DEPTH
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#define BIT_DEPTH 8
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#include "
colorspacedsp_template.c
"
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#undef BIT_DEPTH
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#define BIT_DEPTH 10
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#include "
colorspacedsp_template.c
"
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#undef BIT_DEPTH
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#define BIT_DEPTH 12
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#include "
colorspacedsp_template.c
"
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#undef SS_W
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#undef SS_H
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#define SS_W 1
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#define SS_H 1
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#undef BIT_DEPTH
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#define BIT_DEPTH 8
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#include "
colorspacedsp_template.c
"
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#undef BIT_DEPTH
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#define BIT_DEPTH 10
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#include "
colorspacedsp_template.c
"
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#undef BIT_DEPTH
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#define BIT_DEPTH 12
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#include "
colorspacedsp_template.c
"
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static
void
multiply3x3_c
(int16_t *buf[3], ptrdiff_t
stride
,
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int
w
,
int
h
,
const
int16_t m[3][3][8])
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{
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int
y, x;
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int16_t *buf0 = buf[0], *buf1 = buf[1], *buf2 = buf[2];
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for
(y = 0; y <
h
; y++) {
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for
(x = 0; x <
w
; x++) {
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int
v0 = buf0[x], v1 = buf1[x], v2 = buf2[x];
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buf0[x] =
av_clip_int16
((m[0][0][0] * v0 + m[0][1][0] * v1 +
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m[0][2][0] * v2 + 8192) >> 14);
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buf1[x] =
av_clip_int16
((m[1][0][0] * v0 + m[1][1][0] * v1 +
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m[1][2][0] * v2 + 8192) >> 14);
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buf2[x] =
av_clip_int16
((m[2][0][0] * v0 + m[2][1][0] * v1 +
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m[2][2][0] * v2 + 8192) >> 14);
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}
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buf0 +=
stride
;
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buf1 +=
stride
;
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buf2 +=
stride
;
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}
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}
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void
ff_colorspacedsp_init
(
ColorSpaceDSPContext
*dsp)
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{
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#define init_yuv2rgb_fn(bit) \
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dsp->yuv2rgb[BPP_##bit][SS_444] = yuv2rgb_444p##bit##_c; \
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dsp->yuv2rgb[BPP_##bit][SS_422] = yuv2rgb_422p##bit##_c; \
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dsp->yuv2rgb[BPP_##bit][SS_420] = yuv2rgb_420p##bit##_c
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init_yuv2rgb_fn
( 8);
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init_yuv2rgb_fn
(10);
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init_yuv2rgb_fn
(12);
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#define init_rgb2yuv_fn(bit) \
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dsp->rgb2yuv[BPP_##bit][SS_444] = rgb2yuv_444p##bit##_c; \
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dsp->rgb2yuv[BPP_##bit][SS_422] = rgb2yuv_422p##bit##_c; \
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dsp->rgb2yuv[BPP_##bit][SS_420] = rgb2yuv_420p##bit##_c
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init_rgb2yuv_fn
( 8);
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init_rgb2yuv_fn
(10);
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init_rgb2yuv_fn
(12);
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#define init_rgb2yuv_fsb_fn(bit) \
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dsp->rgb2yuv_fsb[BPP_##bit][SS_444] = rgb2yuv_fsb_444p##bit##_c; \
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dsp->rgb2yuv_fsb[BPP_##bit][SS_422] = rgb2yuv_fsb_422p##bit##_c; \
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dsp->rgb2yuv_fsb[BPP_##bit][SS_420] = rgb2yuv_fsb_420p##bit##_c
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init_rgb2yuv_fsb_fn
( 8);
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init_rgb2yuv_fsb_fn
(10);
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init_rgb2yuv_fsb_fn
(12);
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#define init_yuv2yuv_fn(idx1, bit1, bit2) \
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dsp->yuv2yuv[idx1][BPP_##bit2][SS_444] = yuv2yuv_444p##bit1##to##bit2##_c; \
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dsp->yuv2yuv[idx1][BPP_##bit2][SS_422] = yuv2yuv_422p##bit1##to##bit2##_c; \
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dsp->yuv2yuv[idx1][BPP_##bit2][SS_420] = yuv2yuv_420p##bit1##to##bit2##_c
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#define init_yuv2yuv_fns(bit1) \
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init_yuv2yuv_fn(BPP_##bit1, bit1, 8); \
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init_yuv2yuv_fn(BPP_##bit1, bit1, 10); \
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init_yuv2yuv_fn(BPP_##bit1, bit1, 12)
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init_yuv2yuv_fns
( 8);
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init_yuv2yuv_fns
(10);
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init_yuv2yuv_fns
(12);
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dsp->
multiply3x3
=
multiply3x3_c
;
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#if ARCH_X86
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ff_colorspacedsp_x86_init
(dsp);
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#endif
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}
w
uint8_t w
Definition:
llviddspenc.c:38
multiply3x3_c
static void multiply3x3_c(int16_t *buf[3], ptrdiff_t stride, int w, int h, const int16_t m[3][3][8])
Definition:
colorspacedsp.c:78
ff_colorspacedsp_x86_init
void ff_colorspacedsp_x86_init(ColorSpaceDSPContext *dsp)
Definition:
colorspacedsp_init.c:79
ColorSpaceDSPContext
Definition:
colorspacedsp.h:59
init_rgb2yuv_fn
#define init_rgb2yuv_fn(bit)
av_clip_int16
#define av_clip_int16
Definition:
common.h:115
init_rgb2yuv_fsb_fn
#define init_rgb2yuv_fsb_fn(bit)
ColorSpaceDSPContext::multiply3x3
void(* multiply3x3)(int16_t *data[3], ptrdiff_t stride, int w, int h, const int16_t m[3][3][8])
Definition:
colorspacedsp.h:74
init_yuv2yuv_fns
#define init_yuv2yuv_fns(bit1)
common.h
init_yuv2rgb_fn
#define init_yuv2rgb_fn(bit)
stride
#define stride
Definition:
h264pred_template.c:537
colorspacedsp_template.c
colorspacedsp.h
h
h
Definition:
vp9dsp_template.c:2070
ff_colorspacedsp_init
void ff_colorspacedsp_init(ColorSpaceDSPContext *dsp)
Definition:
colorspacedsp.c:102
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