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Diffstat (limited to 'lib/rbcodec/codecs/libwmavoice/libavutil/bswap.h')
-rw-r--r-- | lib/rbcodec/codecs/libwmavoice/libavutil/bswap.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libwmavoice/libavutil/bswap.h b/lib/rbcodec/codecs/libwmavoice/libavutil/bswap.h new file mode 100644 index 0000000000..303bcf3532 --- /dev/null +++ b/lib/rbcodec/codecs/libwmavoice/libavutil/bswap.h | |||
@@ -0,0 +1,124 @@ | |||
1 | /* | ||
2 | * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> | ||
3 | * | ||
4 | * This file is part of FFmpeg. | ||
5 | * | ||
6 | * FFmpeg is free software; you can redistribute it and/or | ||
7 | * modify it under the terms of the GNU Lesser General Public | ||
8 | * License as published by the Free Software Foundation; either | ||
9 | * version 2.1 of the License, or (at your option) any later version. | ||
10 | * | ||
11 | * FFmpeg is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
14 | * Lesser General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU Lesser General Public | ||
17 | * License along with FFmpeg; if not, write to the Free Software | ||
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file | ||
23 | * byte swapping routines | ||
24 | */ | ||
25 | |||
26 | #ifndef AVUTIL_BSWAP_H | ||
27 | #define AVUTIL_BSWAP_H | ||
28 | |||
29 | #include <stdint.h> | ||
30 | #include "libavutil/avconfig.h" | ||
31 | #include "attributes.h" | ||
32 | |||
33 | #ifdef HAVE_AV_CONFIG_H | ||
34 | |||
35 | #include "config.h" | ||
36 | |||
37 | #if ARCH_ARM | ||
38 | # include "arm/bswap.h" | ||
39 | #elif ARCH_AVR32 | ||
40 | # include "avr32/bswap.h" | ||
41 | #elif ARCH_BFIN | ||
42 | # include "bfin/bswap.h" | ||
43 | #elif ARCH_SH4 | ||
44 | # include "sh4/bswap.h" | ||
45 | #elif ARCH_X86 | ||
46 | # include "x86/bswap.h" | ||
47 | #endif | ||
48 | |||
49 | #endif /* HAVE_AV_CONFIG_H */ | ||
50 | |||
51 | #define AV_BSWAP16C(x) (((x) << 8 & 0xff00) | ((x) >> 8 & 0x00ff)) | ||
52 | #define AV_BSWAP32C(x) (AV_BSWAP16C(x) << 16 | AV_BSWAP16C((x) >> 16)) | ||
53 | #define AV_BSWAP64C(x) (AV_BSWAP32C(x) << 32 | AV_BSWAP32C((x) >> 32)) | ||
54 | |||
55 | #define AV_BSWAPC(s, x) AV_BSWAP##s##C(x) | ||
56 | |||
57 | #ifndef av_bswap16 | ||
58 | static av_always_inline av_const uint16_t av_bswap16(uint16_t x) | ||
59 | { | ||
60 | x= (x>>8) | (x<<8); | ||
61 | return x; | ||
62 | } | ||
63 | #endif | ||
64 | |||
65 | #ifndef av_bswap32 | ||
66 | static av_always_inline av_const uint32_t av_bswap32(uint32_t x) | ||
67 | { | ||
68 | x= ((x<<8)&0xFF00FF00) | ((x>>8)&0x00FF00FF); | ||
69 | x= (x>>16) | (x<<16); | ||
70 | return x; | ||
71 | } | ||
72 | #endif | ||
73 | |||
74 | #ifndef av_bswap64 | ||
75 | static inline uint64_t av_const av_bswap64(uint64_t x) | ||
76 | { | ||
77 | #if 0 | ||
78 | x= ((x<< 8)&0xFF00FF00FF00FF00ULL) | ((x>> 8)&0x00FF00FF00FF00FFULL); | ||
79 | x= ((x<<16)&0xFFFF0000FFFF0000ULL) | ((x>>16)&0x0000FFFF0000FFFFULL); | ||
80 | return (x>>32) | (x<<32); | ||
81 | #else | ||
82 | union { | ||
83 | uint64_t ll; | ||
84 | uint32_t l[2]; | ||
85 | } w, r; | ||
86 | w.ll = x; | ||
87 | r.l[0] = av_bswap32 (w.l[1]); | ||
88 | r.l[1] = av_bswap32 (w.l[0]); | ||
89 | return r.ll; | ||
90 | #endif | ||
91 | } | ||
92 | #endif | ||
93 | |||
94 | // be2ne ... big-endian to native-endian | ||
95 | // le2ne ... little-endian to native-endian | ||
96 | |||
97 | #if AV_HAVE_BIGENDIAN | ||
98 | #define av_be2ne16(x) (x) | ||
99 | #define av_be2ne32(x) (x) | ||
100 | #define av_be2ne64(x) (x) | ||
101 | #define av_le2ne16(x) av_bswap16(x) | ||
102 | #define av_le2ne32(x) av_bswap32(x) | ||
103 | #define av_le2ne64(x) av_bswap64(x) | ||
104 | #define AV_BE2NEC(s, x) (x) | ||
105 | #define AV_LE2NEC(s, x) AV_BSWAPC(s, x) | ||
106 | #else | ||
107 | #define av_be2ne16(x) av_bswap16(x) | ||
108 | #define av_be2ne32(x) av_bswap32(x) | ||
109 | #define av_be2ne64(x) av_bswap64(x) | ||
110 | #define av_le2ne16(x) (x) | ||
111 | #define av_le2ne32(x) (x) | ||
112 | #define av_le2ne64(x) (x) | ||
113 | #define AV_BE2NEC(s, x) AV_BSWAPC(s, x) | ||
114 | #define AV_LE2NEC(s, x) (x) | ||
115 | #endif | ||
116 | |||
117 | #define AV_BE2NE16C(x) AV_BE2NEC(16, x) | ||
118 | #define AV_BE2NE32C(x) AV_BE2NEC(32, x) | ||
119 | #define AV_BE2NE64C(x) AV_BE2NEC(64, x) | ||
120 | #define AV_LE2NE16C(x) AV_LE2NEC(16, x) | ||
121 | #define AV_LE2NE32C(x) AV_LE2NEC(32, x) | ||
122 | #define AV_LE2NE64C(x) AV_LE2NEC(64, x) | ||
123 | |||
124 | #endif /* AVUTIL_BSWAP_H */ | ||