mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-12 19:18:44 +02:00
96d616052b
* commit 'd12b5b2f135aade4099f4b26b0fe678656158c13': build: Split test programs off into separate files Some conversions done by: James Almer <jamrial@gmail.com> Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
/*
|
|
* 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 "config.h"
|
|
#include "common.h"
|
|
#include "pixelutils.h"
|
|
#include "internal.h"
|
|
|
|
#if CONFIG_PIXELUTILS
|
|
|
|
#include "x86/pixelutils.h"
|
|
|
|
static av_always_inline int sad_wxh(const uint8_t *src1, ptrdiff_t stride1,
|
|
const uint8_t *src2, ptrdiff_t stride2,
|
|
int w, int h)
|
|
{
|
|
int x, y, sum = 0;
|
|
|
|
for (y = 0; y < h; y++) {
|
|
for (x = 0; x < w; x++)
|
|
sum += abs(src1[x] - src2[x]);
|
|
src1 += stride1;
|
|
src2 += stride2;
|
|
}
|
|
return sum;
|
|
}
|
|
|
|
#define DECLARE_BLOCK_FUNCTIONS(size) \
|
|
static int block_sad_##size##x##size##_c(const uint8_t *src1, ptrdiff_t stride1, \
|
|
const uint8_t *src2, ptrdiff_t stride2) \
|
|
{ \
|
|
return sad_wxh(src1, stride1, src2, stride2, size, size); \
|
|
}
|
|
|
|
DECLARE_BLOCK_FUNCTIONS(2)
|
|
DECLARE_BLOCK_FUNCTIONS(4)
|
|
DECLARE_BLOCK_FUNCTIONS(8)
|
|
DECLARE_BLOCK_FUNCTIONS(16)
|
|
|
|
static const av_pixelutils_sad_fn sad_c[] = {
|
|
block_sad_2x2_c,
|
|
block_sad_4x4_c,
|
|
block_sad_8x8_c,
|
|
block_sad_16x16_c,
|
|
};
|
|
|
|
#endif /* CONFIG_PIXELUTILS */
|
|
|
|
av_pixelutils_sad_fn av_pixelutils_get_sad_fn(int w_bits, int h_bits, int aligned, void *log_ctx)
|
|
{
|
|
#if !CONFIG_PIXELUTILS
|
|
av_log(log_ctx, AV_LOG_ERROR, "pixelutils support is required "
|
|
"but libavutil is not compiled with it\n");
|
|
return NULL;
|
|
#else
|
|
av_pixelutils_sad_fn sad[FF_ARRAY_ELEMS(sad_c)];
|
|
|
|
memcpy(sad, sad_c, sizeof(sad));
|
|
|
|
if (w_bits < 1 || w_bits > FF_ARRAY_ELEMS(sad) ||
|
|
h_bits < 1 || h_bits > FF_ARRAY_ELEMS(sad))
|
|
return NULL;
|
|
if (w_bits != h_bits) // only squared sad for now
|
|
return NULL;
|
|
|
|
#if ARCH_X86
|
|
ff_pixelutils_sad_init_x86(sad, aligned);
|
|
#endif
|
|
|
|
return sad[w_bits - 1];
|
|
#endif
|
|
}
|