1 /*
2 * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
3 * Copyright (c) 2003-2011 Michael Niedermayer <michaelni@gmx.at>
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /**
23 * @file
24 * H.264 / AVC / MPEG-4 part10 DSP functions.
25 * @author Michael Niedermayer <michaelni@gmx.at>
26 */
27
28 #include "bit_depth_template.c"
29
FUNCC(ff_h264_add_pixels4)30 static void FUNCC(ff_h264_add_pixels4)(uint8_t *_dst, int16_t *_src, int stride)
31 {
32 int i;
33 pixel *dst = (pixel *) _dst;
34 dctcoef *src = (dctcoef *) _src;
35 stride /= sizeof(pixel);
36
37 for (i = 0; i < 4; i++) {
38 dst[0] += (unsigned)src[0];
39 dst[1] += (unsigned)src[1];
40 dst[2] += (unsigned)src[2];
41 dst[3] += (unsigned)src[3];
42
43 dst += stride;
44 src += 4;
45 }
46
47 memset(_src, 0, sizeof(dctcoef) * 16);
48 }
49
FUNCC(ff_h264_add_pixels8)50 static void FUNCC(ff_h264_add_pixels8)(uint8_t *_dst, int16_t *_src, int stride)
51 {
52 int i;
53 pixel *dst = (pixel *) _dst;
54 dctcoef *src = (dctcoef *) _src;
55 stride /= sizeof(pixel);
56
57 for (i = 0; i < 8; i++) {
58 dst[0] += (unsigned)src[0];
59 dst[1] += (unsigned)src[1];
60 dst[2] += (unsigned)src[2];
61 dst[3] += (unsigned)src[3];
62 dst[4] += (unsigned)src[4];
63 dst[5] += (unsigned)src[5];
64 dst[6] += (unsigned)src[6];
65 dst[7] += (unsigned)src[7];
66
67 dst += stride;
68 src += 8;
69 }
70
71 memset(_src, 0, sizeof(dctcoef) * 64);
72 }
73