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TurboPFor: TurboPFor encode/decode c/c++ header

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2018-02-17 20:07:10 +01:00
parent 95aef10f47
commit 75eb791e38
1 changed files with 6 additions and 7 deletions
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13
vp4.h
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@ -202,13 +202,12 @@ unsigned _p4bitsx16( uint16_t *__restrict in, unsigned n, unsigned *pbx)
unsigned _p4bitsx32( uint32_t *__restrict in, unsigned n, unsigned *pbx);
unsigned _p4bitsx64( uint64_t *__restrict in, unsigned n, unsigned *pbx);
#define P4HDE(_out_, _b_, _bx_) do { if(!_bx_) *_out_++ = _b_;else *_out_++ = 0x80 | _b_, *_out_++ = _bx_; } while(0)
#define P4HVE(_out_, _b_, _bx_,_usize_) do { unsigned _c = _b_==_usize_?(_usize_-1):_b_; if(_bx_ <= _usize_) P4HDE(_out_, _c, _bx_); else *_out_++= 0x40|_c; } while(0)
#define P4HVE16(_out_, _b_, _bx_) do { if(_bx_ <= 16 ) P4HDE(_out_, _b_, _bx_); else *_out_++= 0x40|_b_; } while(0)
#define P4HVE32(_out_, _b_, _bx_) do { if(_bx_ <= 32 ) P4HDE(_out_, _b_, _bx_); else *_out_++= 0x40|_b_; } while(0)
#define P4HVE64(_out_, _b_, _bx_) P4HVE(_out_, _b_, _bx_,64)
#define P4HVE8(_out_, _b_, _bx_) P4HDE(_out_, _b_, _bx_)
#define P4HVE(_out_, _b_, _bx_,_usize_) do { if(!_bx_) *_out_++ = _b_;else if(_bx_ <= _usize_) *_out_++ = 0x80|_b_, *_out_++ = _bx_; else *_out_++= (_bx_ == _usize_+1?0x40:0xc0)|_b_; } while(0)
#define P4HVE8( _out_, _b_, _bx_) P4HVE(_out_, _b_, _bx_, 8)
#define P4HVE16(_out_, _b_, _bx_) P4HVE(_out_, _b_, _bx_,16)
#define P4HVE32(_out_, _b_, _bx_) P4HVE(_out_, _b_, _bx_,32)
#define P4HVE64(_out_, _b_, _bx_) do { unsigned _c = _b_==64?64-1:_b_; P4HVE(_out_, _c, _bx_,64); } while(0)
//---------------------------- TurboPFor: Decode --------------------------------------------------------
// decompress a previously (with p4enc32) bit packed array. Return value = end of packed buffer in