aom_film_grain_template.c File Reference

#include "bit_depth_template.c"

Go to the source code of this file.

Macros
#define	entry   int8_t
#define	bitdepth   8
#define	bitdepth_max   UINT8_MAX
#define	HBD_DECL
#define	HBD_CALL
#define	SCALING_SIZE   256
#define	add_noise_y(x, y, grain)
#define	add_noise_uv(x, y, grain)

Functions
static void FUNC()	generate_grain_y_c (entry buf[][GRAIN_WIDTH], const AVFilmGrainParams *const params HBD_DECL)
static void FUNC()	generate_grain_uv_c (entry buf[][GRAIN_WIDTH], const entry buf_y[][GRAIN_WIDTH], const AVFilmGrainParams *const params, const intptr_t uv, const int subx, const int suby HBD_DECL)
static entry FUNC()	sample_lut (const entry grain_lut[][GRAIN_WIDTH], const int offsets[2][2], const int subx, const int suby, const int bx, const int by, const int x, const int y)
static void FUNC()	fgy_32x32xn_c (pixel *const dst_row, const pixel *const src_row, const ptrdiff_t stride, const AVFilmGrainParams *const params, const size_t pw, const uint8_t scaling[SCALING_SIZE], const entry grain_lut[][GRAIN_WIDTH], const int bh, const int row_num HBD_DECL)
static void FUNC()	fguv_32x32xn_c (pixel *const dst_row, const pixel *const src_row, const ptrdiff_t stride, const AVFilmGrainParams *const params, const size_t pw, const uint8_t scaling[SCALING_SIZE], const entry grain_lut[][GRAIN_WIDTH], const int bh, const int row_num, const pixel *const luma_row, const ptrdiff_t luma_stride, const int uv, const int is_id, const int sx, const int sy HBD_DECL)
static void FUNC()	generate_scaling (const uint8_t points[][2], const int num, uint8_t scaling[SCALING_SIZE] HBD_DECL)
static av_always_inline void FUNC()	apply_grain_row (AVFrame *out, const AVFrame *in, const int ss_x, const int ss_y, const uint8_t scaling[3][SCALING_SIZE], const entry grain_lut[3][GRAIN_HEIGHT+1][GRAIN_WIDTH], const AVFilmGrainParams *params, const int row HBD_DECL)
static int FUNC()	apply_film_grain (AVFrame *out_frame, const AVFrame *in_frame, const AVFilmGrainParams *params HBD_DECL)

Macro Definition Documentation

entry

#define entry   int8_t

Examples

avio_list_dir.c, decode_audio.c, demux_decode.c, and resample_audio.c.

Definition at line 66 of file aom_film_grain_template.c.

bitdepth

#define bitdepth   8

Definition at line 67 of file aom_film_grain_template.c.

bitdepth_max

#define bitdepth_max   UINT8_MAX

Definition at line 68 of file aom_film_grain_template.c.

HBD_DECL

#define HBD_DECL

Definition at line 69 of file aom_film_grain_template.c.

HBD_CALL

#define HBD_CALL

Definition at line 70 of file aom_film_grain_template.c.

SCALING_SIZE

#define SCALING_SIZE   256

Definition at line 71 of file aom_film_grain_template.c.

add_noise_y

#define add_noise_y	(		x,
			y,
			grain
	)

Value:

        src = (const pixel*)((const char*)src_row + (y) * stride) + (x) + bx;   \
        dst = (pixel*)((char*)dst_row + (y) * stride) + (x) + bx;               \
        noise = round2(scaling[ *src ] * (grain), data->scaling_shift);         \
        *dst = av_clip(*src + noise, min_value, max_value);

add_noise_uv

#define add_noise_uv	(		x,
			y,
			grain
	)

Value:

            lx = (bx + x) << sx;                                                \
            ly = y << sy;                                                       \
            luma = (const pixel*)((const char*)luma_row + ly * luma_stride) + lx;\
            avg = luma[0];                                                      \
            if (sx)                                                             \
                avg = (avg + luma[1] + 1) >> 1;                                 \
            src = (const pixel*)((const char *)src_row + (y) * stride) + bx + (x);\
            dst = (pixel *) ((char *) dst_row + (y) * stride) + bx + (x);       \
            val = avg;                                                          \
            if (!data->chroma_scaling_from_luma) {                              \
                const int combined = avg * data->uv_mult_luma[uv] +             \
                                    *src * data->uv_mult[uv];                   \
                val = av_clip( (combined >> 6) +                                \
                               (data->uv_offset[uv] * (1 << bitdepth_min_8)),   \
                               0, bitdepth_max );                               \
            }                                                                   \
            noise = round2(scaling[ val ] * (grain), data->scaling_shift);      \
            *dst = av_clip(*src + noise, min_value, max_value);

Function Documentation

generate_grain_y_c()

static void FUNC() generate_grain_y_c ( entry  buf[][GRAIN_WIDTH], const AVFilmGrainParams *const params  HBD_DECL  )

static

Definition at line 74 of file aom_film_grain_template.c.

Referenced by apply_film_grain().

generate_grain_uv_c()

static void FUNC() generate_grain_uv_c ( entry  buf[][GRAIN_WIDTH], const entry  buf_y[][GRAIN_WIDTH], const AVFilmGrainParams *const  params, const intptr_t  uv, const int  subx, const int suby  HBD_DECL  )

static

Definition at line 114 of file aom_film_grain_template.c.

Referenced by apply_film_grain().

sample_lut()

static entry FUNC() sample_lut ( const entry  grain_lut[][GRAIN_WIDTH], const int  offsets[2][2], const int  subx, const int  suby, const int  bx, const int  by, const int  x, const int  y  )

inlinestatic

Definition at line 175 of file aom_film_grain_template.c.

Referenced by fguv_32x32xn_c(), and fgy_32x32xn_c().

fgy_32x32xn_c()

static void FUNC() fgy_32x32xn_c ( pixel *const  dst_row, const pixel *const  src_row, const ptrdiff_t  stride, const AVFilmGrainParams *const  params, const size_t  pw, const uint8_t  scaling[SCALING_SIZE], const entry  grain_lut[][GRAIN_WIDTH], const int  bh, const int row_num  HBD_DECL  )

static

Definition at line 188 of file aom_film_grain_template.c.

Referenced by apply_grain_row().

fguv_32x32xn_c()

static void FUNC() fguv_32x32xn_c ( pixel *const  dst_row, const pixel *const  src_row, const ptrdiff_t  stride, const AVFilmGrainParams *const  params, const size_t  pw, const uint8_t  scaling[SCALING_SIZE], const entry  grain_lut[][GRAIN_WIDTH], const int  bh, const int  row_num, const pixel *const  luma_row, const ptrdiff_t  luma_stride, const int  uv, const int  is_id, const int  sx, const int sy  HBD_DECL  )

static

Definition at line 302 of file aom_film_grain_template.c.

Referenced by apply_grain_row().

generate_scaling()

static void FUNC() generate_scaling ( const uint8_t  points[][2], const int  num, uint8_t scaling  HBD_DECL[SCALING_SIZE]  )

static

Definition at line 433 of file aom_film_grain_template.c.

Referenced by apply_film_grain().

apply_grain_row()

static av_always_inline void FUNC() apply_grain_row ( AVFrame *  out, const AVFrame *  in, const int  ss_x, const int  ss_y, const uint8_t  scaling[3][SCALING_SIZE], const entry  grain_lut[3][GRAIN_HEIGHT+1][GRAIN_WIDTH], const AVFilmGrainParams *  params, const int row  HBD_DECL  )

static

Definition at line 486 of file aom_film_grain_template.c.

Referenced by apply_film_grain().

apply_film_grain()

static int FUNC() apply_film_grain ( AVFrame *  out_frame, const AVFrame *  in_frame, const AVFilmGrainParams *params  HBD_DECL  )

static

Definition at line 545 of file aom_film_grain_template.c.