#include "libavutil/avassert.h"
#include "libavutil/buffer.h"
#include "libavutil/imgutils.h"
#include "libavutil/mem.h"
#include "aom_film_grain.h"
#include "get_bits.h"
#include "aom_film_grain_template.c"

Macros
#define	BIT_DEPTH 16

#define	BIT_DEPTH 8

Enumerations
enum	{ GRAIN_WIDTH = 82, GRAIN_HEIGHT = 73, SUB_GRAIN_WIDTH = 44, SUB_GRAIN_HEIGHT = 38, FG_BLOCK_SIZE = 32 }

Functions
static int	get_random_number (const int bits, unsigned *const state)

static int	round2 (const int x, const uint64_t shift)

int	ff_aom_apply_film_grain (AVFrame out, const AVFrame in, const AVFilmGrainParams *params)

int	ff_aom_parse_film_grain_sets (AVFilmGrainAFGS1Params s, const uint8_t payload, int payload_size)

int	ff_aom_attach_film_grain_sets (const AVFilmGrainAFGS1Params s, AVFrame frame)

void	ff_aom_uninit_film_grain_params (AVFilmGrainAFGS1Params *s)

Variables
static const int16_t	gaussian_sequence [2048]

Detailed Description

AOM film grain synthesis.

Author: Niklas Haas ffmpe.nosp@m.g@ha.nosp@m.asn.x.nosp@m.yz

Definition in file aom_film_grain.c.

Macro Definition Documentation

◆ BIT_DEPTH [1/2]

#define BIT_DEPTH 16

Definition at line 63 of file aom_film_grain.c.

◆ BIT_DEPTH [2/2]

#define BIT_DEPTH 8

Definition at line 63 of file aom_film_grain.c.

Enumeration Type Documentation

◆ anonymous enum

anonymous enum

Enumerator
GRAIN_WIDTH
GRAIN_HEIGHT
SUB_GRAIN_WIDTH
SUB_GRAIN_HEIGHT
FG_BLOCK_SIZE

Definition at line 49 of file aom_film_grain.c.

Function Documentation

◆ get_random_number()

static int get_random_number	(	const int	bits,
		unsigned *const	state
	)

inlinestatic

Definition at line 37 of file aom_film_grain.c.

Referenced by fguv_32x32xn_c(), fgy_32x32xn_c(), generate_grain_uv_c(), and generate_grain_y_c().

◆ round2()

static int round2	(	const int	x,
		const uint64_t	shift
	)

inlinestatic

Definition at line 45 of file aom_film_grain.c.

Referenced by fguv_32x32xn_c(), fgy_32x32xn_c(), generate_grain_uv_c(), and generate_grain_y_c().

◆ ff_aom_apply_film_grain()

int ff_aom_apply_film_grain	(	AVFrame *	out,
		const AVFrame *	in,
		const AVFilmGrainParams *	params
	)

Definition at line 68 of file aom_film_grain.c.

Referenced by hevc_frame_end().

◆ ff_aom_parse_film_grain_sets()

int ff_aom_parse_film_grain_sets	(	AVFilmGrainAFGS1Params *	s,
		const uint8_t *	payload,
		int	payload_size
	)

Definition at line 124 of file aom_film_grain.c.

Referenced by decode_registered_user_data().

◆ ff_aom_attach_film_grain_sets()

int ff_aom_attach_film_grain_sets	(	const AVFilmGrainAFGS1Params *	s,
		AVFrame *	frame
	)

Definition at line 359 of file aom_film_grain.c.

Referenced by ff_h2645_sei_to_frame().

◆ ff_aom_uninit_film_grain_params()

void ff_aom_uninit_film_grain_params ( AVFilmGrainAFGS1Params * s )

Definition at line 381 of file aom_film_grain.c.

Referenced by ff_aom_parse_film_grain_sets(), and ff_h2645_sei_reset().

Variable Documentation

◆ gaussian_sequence

static const int16_t gaussian_sequence

static

Definition at line 57 of file aom_film_grain.c.

Referenced by generate_grain_uv_c(), and generate_grain_y_c().

Macros

Enumerations

Functions

Variables