dct32.c File Reference

#include "dct32.h"
#include "mathops.h"

Go to the source code of this file.

Macros
#define	dct32   ff_dct32_fixed
#define	FIXHR(a)   ((int)((a) * (1LL<<32) + 0.5))
#define	MULH3(x, y, s)   MULH((s)*(x), y)
#define	INTFLOAT   int
#define	COS0_0   FIXHR(0.50060299823519630134/2)
#define	COS0_1   FIXHR(0.50547095989754365998/2)
#define	COS0_2   FIXHR(0.51544730992262454697/2)
#define	COS0_3   FIXHR(0.53104259108978417447/2)
#define	COS0_4   FIXHR(0.55310389603444452782/2)
#define	COS0_5   FIXHR(0.58293496820613387367/2)
#define	COS0_6   FIXHR(0.62250412303566481615/2)
#define	COS0_7   FIXHR(0.67480834145500574602/2)
#define	COS0_8   FIXHR(0.74453627100229844977/2)
#define	COS0_9   FIXHR(0.83934964541552703873/2)
#define	COS0_10   FIXHR(0.97256823786196069369/2)
#define	COS0_11   FIXHR(1.16943993343288495515/4)
#define	COS0_12   FIXHR(1.48416461631416627724/4)
#define	COS0_13   FIXHR(2.05778100995341155085/8)
#define	COS0_14   FIXHR(3.40760841846871878570/8)
#define	COS0_15   FIXHR(10.19000812354805681150/32)
#define	COS1_0   FIXHR(0.50241928618815570551/2)
#define	COS1_1   FIXHR(0.52249861493968888062/2)
#define	COS1_2   FIXHR(0.56694403481635770368/2)
#define	COS1_3   FIXHR(0.64682178335999012954/2)
#define	COS1_4   FIXHR(0.78815462345125022473/2)
#define	COS1_5   FIXHR(1.06067768599034747134/4)
#define	COS1_6   FIXHR(1.72244709823833392782/4)
#define	COS1_7   FIXHR(5.10114861868916385802/16)
#define	COS2_0   FIXHR(0.50979557910415916894/2)
#define	COS2_1   FIXHR(0.60134488693504528054/2)
#define	COS2_2   FIXHR(0.89997622313641570463/2)
#define	COS2_3   FIXHR(2.56291544774150617881/8)
#define	COS3_0   FIXHR(0.54119610014619698439/2)
#define	COS3_1   FIXHR(1.30656296487637652785/4)
#define	COS4_0   FIXHR(0.70710678118654752439/2)
#define	BF(a, b, c, s)
#define	BF0(a, b, c, s)
#define	BF1(a, b, c, d)
#define	BF2(a, b, c, d)
#define	ADD(a, b)   val##a += val##b

Functions
void	dct32 (INTFLOAT *out, const INTFLOAT *tab)

Macro Definition Documentation

#define dct32   ff_dct32_fixed

Definition at line 31 of file dct32.c.

#define FIXHR

(

a

)

((int)((a) * (1LL<<32) + 0.5))

Definition at line 32 of file dct32.c.

#define MULH3	(		x,
			y,
			s
	)		MULH((s)*(x), y)

Definition at line 33 of file dct32.c.

#define INTFLOAT   int

Definition at line 34 of file dct32.c.

Referenced by compute_antialias(), compute_imdct(), compute_stereo(), dct32(), decode_init_static(), ff_imdct36_blocks_TMPL(), ff_mpa_synth_init_TMPL(), imdct12(), imdct36(), and reorder_block().

#define COS0_0   FIXHR(0.50060299823519630134/2)

Definition at line 42 of file dct32.c.

Referenced by dct32().

#define COS0_1   FIXHR(0.50547095989754365998/2)

Definition at line 43 of file dct32.c.

Referenced by dct32().

#define COS0_2   FIXHR(0.51544730992262454697/2)

Definition at line 44 of file dct32.c.

Referenced by dct32().

#define COS0_3   FIXHR(0.53104259108978417447/2)

Definition at line 45 of file dct32.c.

Referenced by dct32().

#define COS0_4   FIXHR(0.55310389603444452782/2)

Definition at line 46 of file dct32.c.

Referenced by dct32().

#define COS0_5   FIXHR(0.58293496820613387367/2)

Definition at line 47 of file dct32.c.

Referenced by dct32().

#define COS0_6   FIXHR(0.62250412303566481615/2)

Definition at line 48 of file dct32.c.

Referenced by dct32().

#define COS0_7   FIXHR(0.67480834145500574602/2)

Definition at line 49 of file dct32.c.

Referenced by dct32().

#define COS0_8   FIXHR(0.74453627100229844977/2)

Definition at line 50 of file dct32.c.

Referenced by dct32().

#define COS0_9   FIXHR(0.83934964541552703873/2)

Definition at line 51 of file dct32.c.

Referenced by dct32().

#define COS0_10   FIXHR(0.97256823786196069369/2)

Definition at line 52 of file dct32.c.

Referenced by dct32().

#define COS0_11   FIXHR(1.16943993343288495515/4)

Definition at line 53 of file dct32.c.

Referenced by dct32().

#define COS0_12   FIXHR(1.48416461631416627724/4)

Definition at line 54 of file dct32.c.

Referenced by dct32().

#define COS0_13   FIXHR(2.05778100995341155085/8)

Definition at line 55 of file dct32.c.

Referenced by dct32().

#define COS0_14   FIXHR(3.40760841846871878570/8)

Definition at line 56 of file dct32.c.

Referenced by dct32().

#define COS0_15   FIXHR(10.19000812354805681150/32)

Definition at line 57 of file dct32.c.

Referenced by dct32().

#define COS1_0   FIXHR(0.50241928618815570551/2)

Definition at line 59 of file dct32.c.

Referenced by dct32().

#define COS1_1   FIXHR(0.52249861493968888062/2)

Definition at line 60 of file dct32.c.

Referenced by dct32().

#define COS1_2   FIXHR(0.56694403481635770368/2)

Definition at line 61 of file dct32.c.

Referenced by dct32().

#define COS1_3   FIXHR(0.64682178335999012954/2)

Definition at line 62 of file dct32.c.

Referenced by dct32().

#define COS1_4   FIXHR(0.78815462345125022473/2)

Definition at line 63 of file dct32.c.

Referenced by dct32().

#define COS1_5   FIXHR(1.06067768599034747134/4)

Definition at line 64 of file dct32.c.

Referenced by dct32().

#define COS1_6   FIXHR(1.72244709823833392782/4)

Definition at line 65 of file dct32.c.

Referenced by dct32().

#define COS1_7   FIXHR(5.10114861868916385802/16)

Definition at line 66 of file dct32.c.

Referenced by dct32().

#define COS2_0   FIXHR(0.50979557910415916894/2)

Definition at line 68 of file dct32.c.

Referenced by dct32().

#define COS2_1   FIXHR(0.60134488693504528054/2)

Definition at line 69 of file dct32.c.

Referenced by dct32().

#define COS2_2   FIXHR(0.89997622313641570463/2)

Definition at line 70 of file dct32.c.

Referenced by dct32().

#define COS2_3   FIXHR(2.56291544774150617881/8)

Definition at line 71 of file dct32.c.

Referenced by dct32().

#define COS3_0   FIXHR(0.54119610014619698439/2)

Definition at line 73 of file dct32.c.

Referenced by dct32().

#define COS3_1   FIXHR(1.30656296487637652785/4)

Definition at line 74 of file dct32.c.

Referenced by dct32().

#define COS4_0   FIXHR(0.70710678118654752439/2)

Definition at line 76 of file dct32.c.

#define BF	(		a,
			b,
			c,
			s
	)

Value:

{\
    tmp0 = val##a + val##b;\
    tmp1 = val##a - val##b;\
    val##a = tmp0;\
    val##b = MULH3(tmp1, c, 1<<(s));\
}

Definition at line 79 of file dct32.c.

Referenced by dct32(), fft4(), and fft8().

#define BF0	(		a,
			b,
			c,
			s
	)

Value:

{\
    tmp0 = tab[a] + tab[b];\
    tmp1 = tab[a] - tab[b];\
    val##a = tmp0;\
    val##b = MULH3(tmp1, c, 1<<(s));\
}

Definition at line 87 of file dct32.c.

Referenced by dct32().

#define BF1	(		a,
			b,
			c,
			d
	)

Value:

{\
    BF(a, b, COS4_0, 1);\
    BF(c, d,-COS4_0, 1);\
    val##c += val##d;\
}

Definition at line 95 of file dct32.c.

Referenced by dct32().

#define BF2	(		a,
			b,
			c,
			d
	)

Value:

{\
    BF(a, b, COS4_0, 1);\
    BF(c, d,-COS4_0, 1);\
    val##c += val##d;\
    val##a += val##c;\
    val##c += val##b;\
    val##b += val##d;\
}

Definition at line 102 of file dct32.c.

Referenced by dct32().

#define ADD	(		a,
			b
	)		val##a += val##b

Definition at line 112 of file dct32.c.

Referenced by dct32(), and ff_idct_add_altivec().

Function Documentation

void dct32	(	INTFLOAT *	out,
		const INTFLOAT *	tab
	)

Definition at line 115 of file dct32.c.

Referenced by ff_mpa_synth_filter_TMPL().