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https://github.com/FFmpeg/FFmpeg.git
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90 lines
2.3 KiB
C
90 lines
2.3 KiB
C
/*
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* Bytestream functions
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* copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef FFMPEG_BYTESTREAM_H
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#define FFMPEG_BYTESTREAM_H
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static av_always_inline unsigned int bytestream_get_le32(uint8_t **b)
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{
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(*b) += 4;
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return AV_RL32(*b - 4);
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}
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static av_always_inline unsigned int bytestream_get_le16(uint8_t **b)
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{
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(*b) += 2;
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return AV_RL16(*b - 2);
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}
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static av_always_inline unsigned int bytestream_get_byte(uint8_t **b)
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{
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(*b)++;
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return (*b)[-1];
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}
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static av_always_inline unsigned int bytestream_get_buffer(uint8_t **b, uint8_t *dst, unsigned int size)
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{
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memcpy(dst, *b, size);
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(*b) += size;
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return size;
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}
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static av_always_inline void bytestream_put_be32(uint8_t **b, const unsigned int value)
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{
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*(*b)++ = value >> 24;
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*(*b)++ = value >> 16;
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*(*b)++ = value >> 8;
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*(*b)++ = value;
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};
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static av_always_inline void bytestream_put_be16(uint8_t **b, const unsigned int value)
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{
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*(*b)++ = value >> 8;
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*(*b)++ = value;
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}
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static av_always_inline void bytestream_put_le32(uint8_t **b, const unsigned int value)
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{
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*(*b)++ = value;
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*(*b)++ = value >> 8;
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*(*b)++ = value >> 16;
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*(*b)++ = value >> 24;
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}
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static av_always_inline void bytestream_put_le16(uint8_t **b, const unsigned int value)
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{
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*(*b)++ = value;
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*(*b)++ = value >> 8;
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}
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static av_always_inline void bytestream_put_byte(uint8_t **b, const unsigned int value)
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{
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*(*b)++ = value;
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}
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static av_always_inline void bytestream_put_buffer(uint8_t **b, const uint8_t *src, unsigned int size)
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{
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memcpy(*b, src, size);
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(*b) += size;
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}
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#endif /* FFMPEG_BYTESTREAM_H */
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