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58 lines
1.8 KiB
58 lines
1.8 KiB
/* |
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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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#define DEF(name, bytes, read, write)\ |
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static av_always_inline unsigned int bytestream_get_ ## name(uint8_t **b){\ |
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(*b) += bytes;\ |
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return read(*b - bytes);\ |
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}\ |
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static av_always_inline void bytestream_put_ ##name(uint8_t **b, const unsigned int value){\ |
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write(*b, value);\ |
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(*b) += bytes;\ |
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} |
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DEF(le32, 4, AV_RL32, AV_WL32) |
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DEF(le24, 3, AV_RL24, AV_WL24) |
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DEF(le16, 2, AV_RL16, AV_WL16) |
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DEF(be32, 4, AV_RB32, AV_WB32) |
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DEF(be24, 3, AV_RB24, AV_WB24) |
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DEF(be16, 2, AV_RB16, AV_WB16) |
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DEF(byte, 1, AV_RB8 , AV_WB8 ) |
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#undef DEF |
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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_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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