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add R/WB24 functions

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Originally committed as revision 8216 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2007-03-04 02:48:32 +00:00
parent 5a6b9443ed
commit 626b7c0f1a
1 changed files with 8 additions and 0 deletions
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8
libavutil/intreadwrite.h
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@ -52,6 +52,14 @@ struct unaligned_16 { uint16_t l; } __attribute__((packed));
((uint8_t*)(p))[1] = (d); \
((uint8_t*)(p))[0] = (d)>>8; }
#define AV_RB24(x) ((((uint8_t*)(x))[0] << 16) | \
(((uint8_t*)(x))[1] << 8) | \
((uint8_t*)(x))[2])
#define AV_WB24(p, d) { \
((uint8_t*)(p))[2] = (d); \
((uint8_t*)(p))[1] = (d)>>8; \
((uint8_t*)(p))[0] = (d)>>16; }
#define AV_RB32(x) ((((uint8_t*)(x))[0] << 24) | \
(((uint8_t*)(x))[1] << 16) | \
(((uint8_t*)(x))[2] << 8) | \