libavutil/lfg.h File Reference

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Data Structures
struct	AVLFG
Functions
void	av_lfg_init (AVLFG *c, unsigned int seed)
static unsigned int	av_lfg_get (AVLFG *c)
	Gets the next random unsigned 32-bit number using an ALFG.
static unsigned int	av_mlfg_get (AVLFG *c)
	Gets the next random unsigned 32-bit number using a MLFG.

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Function Documentation

static unsigned int av_lfg_get

(

AVLFG *

c

)

[inline, static]

Gets the next random unsigned 32-bit number using an ALFG.

Please also consider a simple LCG like state= state*1664525+1013904223, it may be good enough and faster for your specific use case.

Definition at line 38 of file lfg.h.

Referenced by ac3_decode_transform_coeffs_ch(), and ff_eac3_decode_transform_coeffs_aht_ch().

void av_lfg_init	(	AVLFG *	c,
		unsigned int	seed
	)

Definition at line 27 of file lfg.c.

Referenced by ac3_decode_init().

static unsigned int av_mlfg_get

(

AVLFG *

c

)

[inline, static]

Gets the next random unsigned 32-bit number using a MLFG.

Please also consider av_lfg_get() above, it is faster.

Definition at line 48 of file lfg.h.