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/*
* Bytestream functions
* copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef FFMPEG_BYTESTREAM_H
#define FFMPEG_BYTESTREAM_H
#define DEF(name, bytes, read, write)\
static av_always_inline unsigned int bytestream_get_ ## name(uint8_t **b){\
(*b) += bytes;\
return read(*b - bytes);\
}\
static av_always_inline void bytestream_put_ ##name(uint8_t **b, const unsigned int value){\
write(*b, value);\
(*b) += bytes;\
};
DEF(le32, 4, AV_RL32, AV_WL32)
DEF(le24, 3, AV_RL24, AV_WL24)
DEF(le16, 2, AV_RL16, AV_WL16)
DEF(be32, 4, AV_RB32, AV_WB32)
DEF(be24, 3, AV_RB24, AV_WB24)
DEF(be16, 2, AV_RB16, AV_WB16)
DEF(byte, 1, AV_RB8 , AV_WB8 )
#undef DEF
static av_always_inline unsigned int bytestream_get_buffer(uint8_t **b, uint8_t *dst, unsigned int size)
{
memcpy(dst, *b, size);
(*b) += size;
return size;
}
static av_always_inline void bytestream_put_buffer(uint8_t **b, const uint8_t *src, unsigned int size)
{
memcpy(*b, src, size);
(*b) += size;
}
#endif /* FFMPEG_BYTESTREAM_H */
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