mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-11 17:55:21 +00:00
77 lines
2.1 KiB
C
77 lines
2.1 KiB
C
|
/*
|
||
|
|
* This file is part of Libav.
|
||
|
|
*
|
||
|
|
* Libav 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.
|
||
|
|
*
|
||
|
|
* Libav 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 Libav; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
#include "config.h"
|
||
|
|
#include "libavutil/attributes.h"
|
||
|
|
#include "avcodec.h"
|
||
|
|
#include "pixblockdsp.h"
|
||
|
|
|
||
|
|
#define BIT_DEPTH 16
|
||
|
|
#include "pixblockdsp_template.c"
|
||
|
|
#undef BIT_DEPTH
|
||
|
|
|
||
|
|
#define BIT_DEPTH 8
|
||
|
|
#include "pixblockdsp_template.c"
|
||
|
|
|
||
|
|
static void diff_pixels_c(int16_t *restrict block, const uint8_t *s1,
|
||
|
|
const uint8_t *s2, int stride)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
/* read the pixels */
|
||
|
|
for (i = 0; i < 8; i++) {
|
||
|
|
block[0] = s1[0] - s2[0];
|
||
|
|
block[1] = s1[1] - s2[1];
|
||
|
|
block[2] = s1[2] - s2[2];
|
||
|
|
block[3] = s1[3] - s2[3];
|
||
|
|
block[4] = s1[4] - s2[4];
|
||
|
|
block[5] = s1[5] - s2[5];
|
||
|
|
block[6] = s1[6] - s2[6];
|
||
|
|
block[7] = s1[7] - s2[7];
|
||
|
|
s1 += stride;
|
||
|
|
s2 += stride;
|
||
|
|
block += 8;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
av_cold void ff_pixblockdsp_init(PixblockDSPContext *c, AVCodecContext *avctx)
|
||
|
|
{
|
||
|
|
const unsigned high_bit_depth = avctx->bits_per_raw_sample > 8;
|
||
|
|
|
||
|
|
c->diff_pixels = diff_pixels_c;
|
||
|
|
|
||
|
|
switch (avctx->bits_per_raw_sample) {
|
||
|
|
case 9:
|
||
|
|
case 10:
|
||
|
|
c->get_pixels = get_pixels_16_c;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
c->get_pixels = get_pixels_8_c;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (ARCH_ARM)
|
||
|
|
ff_pixblockdsp_init_arm(c, avctx, high_bit_depth);
|
||
|
|
if (ARCH_PPC)
|
||
|
|
ff_pixblockdsp_init_ppc(c, avctx, high_bit_depth);
|
||
|
|
if (ARCH_X86)
|
||
|
|
ff_pixblockdsp_init_x86(c, avctx, high_bit_depth);
|
||
|
|
}
|