Globally rename the header inclusion guard names.
[libav.git] / libavcodec / bytestream.h
1 /*
2 * Bytestream functions
3 * copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>
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 #ifndef AVCODEC_BYTESTREAM_H
23 #define AVCODEC_BYTESTREAM_H
24
25 #include "libavutil/common.h"
26
27 #define DEF_T(type, name, bytes, read, write) \
28 static av_always_inline type bytestream_get_ ## name(const uint8_t **b){\
29 (*b) += bytes;\
30 return read(*b - bytes);\
31 }\
32 static av_always_inline void bytestream_put_ ##name(uint8_t **b, const type value){\
33 write(*b, value);\
34 (*b) += bytes;\
35 }
36
37 #define DEF(name, bytes, read, write) \
38 DEF_T(unsigned int, name, bytes, read, write)
39 #define DEF64(name, bytes, read, write) \
40 DEF_T(uint64_t, name, bytes, read, write)
41
42 DEF64(le64, 8, AV_RL64, AV_WL64)
43 DEF (le32, 4, AV_RL32, AV_WL32)
44 DEF (le24, 3, AV_RL24, AV_WL24)
45 DEF (le16, 2, AV_RL16, AV_WL16)
46 DEF64(be64, 8, AV_RB64, AV_WB64)
47 DEF (be32, 4, AV_RB32, AV_WB32)
48 DEF (be24, 3, AV_RB24, AV_WB24)
49 DEF (be16, 2, AV_RB16, AV_WB16)
50 DEF (byte, 1, AV_RB8 , AV_WB8 )
51
52 #undef DEF
53 #undef DEF64
54 #undef DEF_T
55
56 static av_always_inline unsigned int bytestream_get_buffer(const uint8_t **b, uint8_t *dst, unsigned int size)
57 {
58 memcpy(dst, *b, size);
59 (*b) += size;
60 return size;
61 }
62
63 static av_always_inline void bytestream_put_buffer(uint8_t **b, const uint8_t *src, unsigned int size)
64 {
65 memcpy(*b, src, size);
66 (*b) += size;
67 }
68
69 #endif /* AVCODEC_BYTESTREAM_H */