1 /*
2 * V210 decoder DSP init
3 *
4 * Copyright (C) 2009 Michael Niedermayer <michaelni@gmx.at>
5 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
6 *
7 * This file is part of FFmpeg.
8 *
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24 #ifndef AVCODEC_V210DEC_INIT_H
25 #define AVCODEC_V210DEC_INIT_H
26
27 #include <stdint.h>
28
29 #include "config.h"
30 #include "libavutil/attributes.h"
31 #include "libavutil/bswap.h"
32 #include "v210dec.h"
33
34 #define READ_PIXELS(a, b, c) \
35 do { \
36 val = av_le2ne32(*src++); \
37 *a++ = val & 0x3FF; \
38 *b++ = (val >> 10) & 0x3FF; \
39 *c++ = (val >> 20) & 0x3FF; \
40 } while (0)
41
v210_planar_unpack_c(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width)42 static void v210_planar_unpack_c(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width)
43 {
44 uint32_t val;
45
46 for (int i = 0; i < width - 5; i += 6) {
47 READ_PIXELS(u, y, v);
48 READ_PIXELS(y, u, y);
49 READ_PIXELS(v, y, u);
50 READ_PIXELS(y, v, y);
51 }
52 }
53
ff_v210dec_init(V210DecContext *s)54 static av_unused av_cold void ff_v210dec_init(V210DecContext *s)
55 {
56 s->unpack_frame = v210_planar_unpack_c;
57 #if ARCH_X86
58 ff_v210_x86_init(s);
59 #endif
60 }
61
62 #endif /* AVCODEC_V210DEC_INIT_H */
63