Directly #include some required headers.
[libav.git] / libavcodec / bytestream.h
CommitLineData
06d392a7
BC
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
98790382
SS
22#ifndef AVCODEC_BYTESTREAM_H
23#define AVCODEC_BYTESTREAM_H
06d392a7 24
c60208e7 25#include <string.h>
245976da 26#include "libavutil/common.h"
6a5d31ac 27#include "libavutil/intreadwrite.h"
99545457 28
a7b67850 29#define DEF_T(type, name, bytes, read, write) \
7993df65 30static av_always_inline type bytestream_get_ ## name(const uint8_t **b){\
7d4495da
MN
31 (*b) += bytes;\
32 return read(*b - bytes);\
33}\
a7b67850 34static av_always_inline void bytestream_put_ ##name(uint8_t **b, const type value){\
7d4495da
MN
35 write(*b, value);\
36 (*b) += bytes;\
91a2974e 37}
06d392a7 38
a7b67850
MR
39#define DEF(name, bytes, read, write) \
40 DEF_T(unsigned int, name, bytes, read, write)
41#define DEF64(name, bytes, read, write) \
42 DEF_T(uint64_t, name, bytes, read, write)
43
44DEF64(le64, 8, AV_RL64, AV_WL64)
3c3f7ce1
MR
45DEF (le32, 4, AV_RL32, AV_WL32)
46DEF (le24, 3, AV_RL24, AV_WL24)
47DEF (le16, 2, AV_RL16, AV_WL16)
a7b67850 48DEF64(be64, 8, AV_RB64, AV_WB64)
3c3f7ce1
MR
49DEF (be32, 4, AV_RB32, AV_WB32)
50DEF (be24, 3, AV_RB24, AV_WB24)
51DEF (be16, 2, AV_RB16, AV_WB16)
52DEF (byte, 1, AV_RB8 , AV_WB8 )
06d392a7 53
7d4495da 54#undef DEF
a7b67850
MR
55#undef DEF64
56#undef DEF_T
06d392a7 57
7993df65 58static av_always_inline unsigned int bytestream_get_buffer(const uint8_t **b, uint8_t *dst, unsigned int size)
06d392a7
BC
59{
60 memcpy(dst, *b, size);
61 (*b) += size;
62 return size;
63}
64
849f1035 65static av_always_inline void bytestream_put_buffer(uint8_t **b, const uint8_t *src, unsigned int size)
93481fe5
BC
66{
67 memcpy(*b, src, size);
68 (*b) += size;
69}
70
98790382 71#endif /* AVCODEC_BYTESTREAM_H */