3 * copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>
5 * This file is part of FFmpeg.
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.
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.
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
22 #ifndef FFMPEG_BYTESTREAM_H
23 #define FFMPEG_BYTESTREAM_H
25 #define DEF(name, bytes, read, write)\
26 static av_always_inline unsigned int bytestream_get_ ## name(uint8_t **b){\
28 return read(*b - bytes);\
30 static av_always_inline void bytestream_put_ ##name(uint8_t **b, const unsigned int value){\
35 DEF(le32, 4, AV_RL32, AV_WL32)
36 DEF(le16, 2, AV_RL16, AV_WL16)
37 DEF(be32, 4, AV_RB32, AV_WB32)
38 DEF(be16, 2, AV_RB16, AV_WB16)
39 DEF(byte, 1, AV_RB8 , AV_WB8 )
43 static av_always_inline unsigned int bytestream_get_buffer(uint8_t **b, uint8_t *dst, unsigned int size)
45 memcpy(dst, *b, size);
50 static av_always_inline void bytestream_put_buffer(uint8_t **b, const uint8_t *src, unsigned int size)
52 memcpy(*b, src, size);
56 #endif /* FFMPEG_BYTESTREAM_H */