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Code Issues Releases Activity

add 64-bit bytestream read/write functions

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Originally committed as revision 9523 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård 2007-07-07 20:50:27 +00:00
parent f015e411d7
commit a7b67850f4
1 changed files with 12 additions and 3 deletions
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15
libavcodec/bytestream.h
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@ -24,25 +24,34 @@
#include "common.h"
#define DEF(name, bytes, read, write)\
static av_always_inline unsigned int bytestream_get_ ## name(uint8_t **b){\
#define DEF_T(type, name, bytes, read, write) \
static av_always_inline type 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){\
static av_always_inline void bytestream_put_ ##name(uint8_t **b, const type value){\
write(*b, value);\
(*b) += bytes;\
}
#define DEF(name, bytes, read, write) \
DEF_T(unsigned int, name, bytes, read, write)
#define DEF64(name, bytes, read, write) \
DEF_T(uint64_t, name, bytes, read, write)
DEF64(le64, 8, AV_RL64, AV_WL64)
DEF(le32, 4, AV_RL32, AV_WL32)
DEF(le24, 3, AV_RL24, AV_WL24)
DEF(le16, 2, AV_RL16, AV_WL16)
DEF64(be64, 8, AV_RB64, AV_WB64)
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
#undef DEF64
#undef DEF_T
static av_always_inline unsigned int bytestream_get_buffer(uint8_t **b, uint8_t *dst, unsigned int size)
{