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add little endian 24bit read/write

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Originally committed as revision 8269 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Alex Beregszaszi 2007-03-06 13:04:47 +00:00
parent cb50328dbb
commit 1586238717
1 changed files with 8 additions and 0 deletions
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8
libavutil/intreadwrite.h
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@ -78,6 +78,14 @@ struct unaligned_16 { uint16_t l; } __attribute__((packed));
((uint8_t*)(p))[0] = (d); \
((uint8_t*)(p))[1] = (d)>>8; }
#define AV_RL24(x) ((((uint8_t*)(x))[2] << 16) | \
(((uint8_t*)(x))[1] << 8) | \
((uint8_t*)(x))[0])
#define AV_WL24(p, d) { \
((uint8_t*)(p))[0] = (d); \
((uint8_t*)(p))[1] = (d)>>8; \
((uint8_t*)(p))[2] = (d)>>16; }
#define AV_RL32(x) ((((uint8_t*)(x))[3] << 24) | \
(((uint8_t*)(x))[2] << 16) | \
(((uint8_t*)(x))[1] << 8) | \