Apply a hue/saturation filter to the input video Ported from MPlayer libmpcodecs/vf_hue.c. More...

#include <float.h>
#include "libavutil/eval.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Data Structures
struct	HueContext

Macros
#define	SAT_MIN_VAL -10

#define	SAT_MAX_VAL 10

#define	OFFSET(x) offsetof(HueContext, x)

#define	FLAGS AV_OPT_FLAG_VIDEO_PARAM\|AV_OPT_FLAG_FILTERING_PARAM

#define	SET_EXPR(expr, option)

#define	TS2D(ts) ((ts) == AV_NOPTS_VALUE ? NAN : (double)(ts))

#define	TS2T(ts, tb) ((ts) == AV_NOPTS_VALUE ? NAN : (double)(ts) * av_q2d(tb))

#define	SET_EXPR(expr, option)

Enumerations
enum	var_name { VAR_CH, VAR_N, VAR_NB_IN_CHANNELS, VAR_NB_OUT_CHANNELS, VAR_T, VAR_S, VAR_VARS_NB, VAR_VALUE1, VAR_VALUE2, VAR_VARS_NB, VAR_TB, VAR_PTS, VAR_START_PTS, VAR_PREV_PTS, VAR_PREV_SELECTED_PTS, VAR_T, VAR_START_T, VAR_PREV_T, VAR_PREV_SELECTED_T, VAR_PICT_TYPE, VAR_I, VAR_P, VAR_B, VAR_S, VAR_SI, VAR_SP, VAR_BI, VAR_PICT_TYPE_I, VAR_PICT_TYPE_P, VAR_PICT_TYPE_B, VAR_PICT_TYPE_S, VAR_PICT_TYPE_SI, VAR_PICT_TYPE_SP, VAR_PICT_TYPE_BI, VAR_INTERLACE_TYPE, VAR_INTERLACE_TYPE_P, VAR_INTERLACE_TYPE_T, VAR_INTERLACE_TYPE_B, VAR_CONSUMED_SAMPLES_N, VAR_SAMPLES_N, VAR_SAMPLE_RATE, VAR_N, VAR_SELECTED_N, VAR_PREV_SELECTED_N, VAR_KEY, VAR_POS, VAR_SCENE, VAR_CONCATDEC_SELECT, VAR_VARS_NB, VAR_FRAME_RATE, VAR_INTERLACED, VAR_N, VAR_NB_CONSUMED_SAMPLES, VAR_NB_SAMPLES, VAR_POS, VAR_PREV_INPTS, VAR_PREV_INT, VAR_PREV_OUTPTS, VAR_PREV_OUTT, VAR_PTS, VAR_SAMPLE_RATE, VAR_STARTPTS, VAR_STARTT, VAR_T, VAR_TB, VAR_RTCTIME, VAR_RTCSTART, VAR_S, VAR_SR, VAR_VARS_NB, VAR_AVTB, VAR_INTB, VAR_SR, VAR_VARS_NB, VAR_W, VAR_H, VAR_A, VAR_DAR, VAR_SAR, VAR_HSUB, VAR_VSUB, VARS_NB, VAR_W, VAR_H, VAR_CW, VAR_CH, VAR_HSUB, VAR_VSUB, VARS_NB, VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH, VAR_A, VAR_SAR, VAR_DAR, VAR_HSUB, VAR_VSUB, VAR_X, VAR_Y, VAR_N, VAR_POS, VAR_T, VAR_VARS_NB, VAR_DAR, VAR_HSUB, VAR_VSUB, VAR_IN_H, VAR_IH, VAR_IN_W, VAR_IW, VAR_SAR, VAR_X, VAR_Y, VAR_H, VAR_W, VAR_T, VAR_MAX, VARS_NB, VAR_DAR, VAR_HSUB, VAR_VSUB, VAR_LINE_H, VAR_LH, VAR_MAIN_H, VAR_h, VAR_H, VAR_MAIN_W, VAR_w, VAR_W, VAR_MAX_GLYPH_A, VAR_ASCENT, VAR_MAX_GLYPH_D, VAR_DESCENT, VAR_MAX_GLYPH_H, VAR_MAX_GLYPH_W, VAR_N, VAR_SAR, VAR_T, VAR_TEXT_H, VAR_TH, VAR_TEXT_W, VAR_TW, VAR_X, VAR_Y, VAR_PICT_TYPE, VAR_VARS_NB, VAR_N, VAR_POS, VAR_R, VAR_T, VAR_NB, VAR_N, VAR_PTS, VAR_R, VAR_T, VAR_TB, VAR_NB, VAR_W, VAR_H, VAR_VAL, VAR_MAXVAL, VAR_MINVAL, VAR_NEGVAL, VAR_CLIPVAL, VAR_VARS_NB, VAR_MAIN_W, VAR_MW, VAR_MAIN_H, VAR_MH, VAR_OVERLAY_W, VAR_OW, VAR_OVERLAY_H, VAR_OH, VAR_HSUB, VAR_VSUB, VAR_X, VAR_Y, VAR_N, VAR_POS, VAR_T, VAR_VARS_NB, VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH, VAR_X, VAR_Y, VAR_A, VAR_SAR, VAR_DAR, VAR_HSUB, VAR_VSUB, VARS_NB, VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH, VAR_HSUB, VAR_VSUB, VAR_N, VAR_T, VAR_VARS_NB, VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH, VAR_A, VAR_SAR, VAR_DAR, VAR_HSUB, VAR_VSUB, VAR_OHSUB, VAR_OVSUB, VARS_NB, VAR_W, VAR_H, VAR_N, VAR_PTS, VAR_R, VAR_T, VAR_TB, VAR_NB, VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH, VAR_IN, VAR_ON, VAR_DURATION, VAR_PDURATION, VAR_TIME, VAR_FRAME, VAR_ZOOM, VAR_PZOOM, VAR_X, VAR_PX, VAR_Y, VAR_PY, VAR_A, VAR_SAR, VAR_DAR, VAR_HSUB, VAR_VSUB, VARS_NB, VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH, VAR_A, VAR_SAR, VAR_DAR, VAR_HSUB, VAR_VSUB, VAR_OHSUB, VAR_OVSUB, VARS_NB, VAR_X, VAR_Y, VAR_W, VAR_H, VAR_TIME, VAR_SPEED, VAR_TEMPO, VAR_ORDER, VAR_PATTERN, VAR_ROW, VAR_VARS_NB }

Functions
	AVFILTER_DEFINE_CLASS (hue)

static void	compute_sin_and_cos (HueContext *hue)

static void	create_luma_lut (HueContext *h)

static void	create_chrominance_lut (HueContext *h, const int32_t c, const int32_t s)

static int	set_expr (AVExpr pexpr_ptr, char expr_ptr, const char expr, const char option, void *log_ctx)

static av_cold int	init (AVFilterContext *ctx)

static av_cold void	uninit (AVFilterContext *ctx)

static int	query_formats (AVFilterContext *ctx)

static int	config_props (AVFilterLink *inlink)

static void	apply_luma_lut (HueContext s, uint8_t ldst, const int dst_linesize, uint8_t *lsrc, const int src_linesize, int w, int h)

static void	apply_lut (HueContext s, uint8_t udst, uint8_t vdst, const int dst_linesize, uint8_t usrc, uint8_t *vsrc, const int src_linesize, int w, int h)

static int	filter_frame (AVFilterLink inlink, AVFrame inpic)

static int	process_command (AVFilterContext ctx, const char cmd, const char args, char res, int res_len, int flags)

Variables
static const char *const	var_names []

static const AVOption	hue_options []

static const AVFilterPad	hue_inputs []

static const AVFilterPad	hue_outputs []

AVFilter	ff_vf_hue

Detailed Description

Apply a hue/saturation filter to the input video Ported from MPlayer libmpcodecs/vf_hue.c.

Definition in file vf_hue.c.

Macro Definition Documentation

#define SAT_MIN_VAL -10

Definition at line 39 of file vf_hue.c.

Referenced by filter_frame().

#define SAT_MAX_VAL 10

Definition at line 40 of file vf_hue.c.

Referenced by filter_frame().

#define OFFSET ( x ) offsetof(HueContext, x)

Definition at line 85 of file vf_hue.c.

#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 86 of file vf_hue.c.

#define SET_EXPR	(	expr,
		option
	)

Value:

if (hue->expr##_expr) do {                                          \
        ret = set_expr(&hue->expr##_pexpr, &hue->expr##_expr,           \
                       hue->expr##_expr, option, ctx);                  \
        if (ret < 0)                                                    \
            return ret;                                                 \
    } while (0)

Referenced by init(), and process_command().

#define TS2D ( ts ) ((ts) == AV_NOPTS_VALUE ? NAN : (double)(ts))

Definition at line 297 of file vf_hue.c.

Referenced by filter_frame().

#define TS2T	(	ts,
		tb
	)	((ts) == AV_NOPTS_VALUE ? NAN : (double)(ts) * av_q2d(tb))

Definition at line 298 of file vf_hue.c.

Referenced by filter_frame().

#define SET_EXPR	(	expr,
		option
	)

Value:

do {                                                                \
        ret = set_expr(&hue->expr##_pexpr, &hue->expr##_expr,           \
                       args, option, ctx);                              \
        if (ret < 0)                                                    \
            return ret;                                                 \
    } while (0)

Enumeration Type Documentation

enum var_name

Enumerator
VAR_CH
VAR_N
VAR_NB_IN_CHANNELS
VAR_NB_OUT_CHANNELS
VAR_T
VAR_S
VAR_VARS_NB
VAR_VALUE1
VAR_VALUE2
VAR_VARS_NB
VAR_TB
VAR_PTS
VAR_START_PTS
VAR_PREV_PTS
VAR_PREV_SELECTED_PTS
VAR_T
VAR_START_T
VAR_PREV_T
VAR_PREV_SELECTED_T
VAR_PICT_TYPE
VAR_I
VAR_P
VAR_B
VAR_S
VAR_SI
VAR_SP
VAR_BI
VAR_PICT_TYPE_I
VAR_PICT_TYPE_P
VAR_PICT_TYPE_B
VAR_PICT_TYPE_S
VAR_PICT_TYPE_SI
VAR_PICT_TYPE_SP
VAR_PICT_TYPE_BI
VAR_INTERLACE_TYPE
VAR_INTERLACE_TYPE_P
VAR_INTERLACE_TYPE_T
VAR_INTERLACE_TYPE_B
VAR_CONSUMED_SAMPLES_N
VAR_SAMPLES_N
VAR_SAMPLE_RATE
VAR_N
VAR_SELECTED_N
VAR_PREV_SELECTED_N
VAR_KEY
VAR_POS
VAR_SCENE
VAR_CONCATDEC_SELECT
VAR_VARS_NB
VAR_FRAME_RATE
VAR_INTERLACED
VAR_N
VAR_NB_CONSUMED_SAMPLES
VAR_NB_SAMPLES
VAR_POS
VAR_PREV_INPTS
VAR_PREV_INT
VAR_PREV_OUTPTS
VAR_PREV_OUTT
VAR_PTS
VAR_SAMPLE_RATE
VAR_STARTPTS
VAR_STARTT
VAR_T
VAR_TB
VAR_RTCTIME
VAR_RTCSTART
VAR_S
VAR_SR
VAR_VARS_NB
VAR_AVTB
VAR_INTB
VAR_SR
VAR_VARS_NB
VAR_W
VAR_H
VAR_A
VAR_DAR
VAR_SAR
VAR_HSUB
VAR_VSUB
VARS_NB
VAR_W
VAR_H
VAR_CW
VAR_CH
VAR_HSUB
VAR_VSUB
VARS_NB
VAR_IN_W
VAR_IW
VAR_IN_H
VAR_IH
VAR_OUT_W
VAR_OW
VAR_OUT_H
VAR_OH
VAR_A
VAR_SAR
VAR_DAR
VAR_HSUB
VAR_VSUB
VAR_X
VAR_Y
VAR_N
VAR_POS
VAR_T
VAR_VARS_NB
VAR_DAR
VAR_HSUB
VAR_VSUB
VAR_IN_H
VAR_IH
VAR_IN_W
VAR_IW
VAR_SAR
VAR_X
VAR_Y
VAR_H
VAR_W
VAR_T
VAR_MAX
VARS_NB
VAR_DAR
VAR_HSUB
VAR_VSUB
VAR_LINE_H
VAR_LH
VAR_MAIN_H
VAR_h
VAR_H
VAR_MAIN_W
VAR_w
VAR_W
VAR_MAX_GLYPH_A
VAR_ASCENT
VAR_MAX_GLYPH_D
VAR_DESCENT
VAR_MAX_GLYPH_H
VAR_MAX_GLYPH_W
VAR_N
VAR_SAR
VAR_T
VAR_TEXT_H
VAR_TH
VAR_TEXT_W
VAR_TW
VAR_X
VAR_Y
VAR_PICT_TYPE
VAR_VARS_NB
VAR_N
VAR_POS
VAR_R
VAR_T
VAR_NB
VAR_N
VAR_PTS
VAR_R
VAR_T
VAR_TB
VAR_NB
VAR_W
VAR_H
VAR_VAL
VAR_MAXVAL
VAR_MINVAL
VAR_NEGVAL
VAR_CLIPVAL
VAR_VARS_NB
VAR_MAIN_W
VAR_MW
VAR_MAIN_H
VAR_MH
VAR_OVERLAY_W
VAR_OW
VAR_OVERLAY_H
VAR_OH
VAR_HSUB
VAR_VSUB
VAR_X
VAR_Y
VAR_N
VAR_POS
VAR_T
VAR_VARS_NB
VAR_IN_W
VAR_IW
VAR_IN_H
VAR_IH
VAR_OUT_W
VAR_OW
VAR_OUT_H
VAR_OH
VAR_X
VAR_Y
VAR_A
VAR_SAR
VAR_DAR
VAR_HSUB
VAR_VSUB
VARS_NB
VAR_IN_W
VAR_IW
VAR_IN_H
VAR_IH
VAR_OUT_W
VAR_OW
VAR_OUT_H
VAR_OH
VAR_HSUB
VAR_VSUB
VAR_N
VAR_T
VAR_VARS_NB
VAR_IN_W
VAR_IW
VAR_IN_H
VAR_IH
VAR_OUT_W
VAR_OW
VAR_OUT_H
VAR_OH
VAR_A
VAR_SAR
VAR_DAR
VAR_HSUB
VAR_VSUB
VAR_OHSUB
VAR_OVSUB
VARS_NB
VAR_W
VAR_H
VAR_N
VAR_PTS
VAR_R
VAR_T
VAR_TB
VAR_NB
VAR_IN_W
VAR_IW
VAR_IN_H
VAR_IH
VAR_OUT_W
VAR_OW
VAR_OUT_H
VAR_OH
VAR_IN
VAR_ON
VAR_DURATION
VAR_PDURATION
VAR_TIME
VAR_FRAME
VAR_ZOOM
VAR_PZOOM
VAR_X
VAR_PX
VAR_Y
VAR_PY
VAR_A
VAR_SAR
VAR_DAR
VAR_HSUB
VAR_VSUB
VARS_NB
VAR_IN_W
VAR_IW
VAR_IN_H
VAR_IH
VAR_OUT_W
VAR_OW
VAR_OUT_H
VAR_OH
VAR_A
VAR_SAR
VAR_DAR
VAR_HSUB
VAR_VSUB
VAR_OHSUB
VAR_OVSUB
VARS_NB
VAR_X
VAR_Y
VAR_W
VAR_H
VAR_TIME
VAR_SPEED
VAR_TEMPO
VAR_ORDER
VAR_PATTERN
VAR_ROW
VAR_VARS_NB

Definition at line 51 of file vf_hue.c.

Function Documentation

AVFILTER_DEFINE_CLASS ( hue )

static void compute_sin_and_cos ( HueContext * hue )

inlinestatic

Definition at line 101 of file vf_hue.c.

Referenced by filter_frame(), and init().

static void create_luma_lut ( HueContext * h )

inlinestatic

Definition at line 112 of file vf_hue.c.

Referenced by filter_frame().

static void create_chrominance_lut	(	HueContext *	h,
		const int32_t	c,
		const int32_t	s
	)

inlinestatic

Definition at line 122 of file vf_hue.c.

Referenced by filter_frame().

static int set_expr	(	AVExpr **	pexpr_ptr,
		char **	expr_ptr,
		const char *	expr,
		const char *	option,
		void *	log_ctx
	)

static

Definition at line 153 of file vf_hue.c.

static av_cold int init ( AVFilterContext * ctx )

static

Definition at line 182 of file vf_hue.c.

static av_cold void uninit ( AVFilterContext * ctx )

static

Definition at line 216 of file vf_hue.c.

static int query_formats ( AVFilterContext * ctx )

static

Definition at line 226 of file vf_hue.c.

static int config_props ( AVFilterLink * inlink )

static

Definition at line 242 of file vf_hue.c.

static void apply_luma_lut	(	HueContext *	s,
		uint8_t *	ldst,
		const int	dst_linesize,
		uint8_t *	lsrc,
		const int	src_linesize,
		int	w,
		int	h
	)

static

Definition at line 258 of file vf_hue.c.

Referenced by filter_frame().

static void apply_lut	(	HueContext *	s,
		uint8_t *	udst,
		uint8_t *	vdst,
		const int	dst_linesize,
		uint8_t *	usrc,
		uint8_t *	vsrc,
		const int	src_linesize,
		int	w,
		int	h
	)

static

Definition at line 274 of file vf_hue.c.

Referenced by filter_frame().

static int filter_frame	(	AVFilterLink *	inlink,
		AVFrame *	inpic
	)

static

Definition at line 300 of file vf_hue.c.

static int process_command	(	AVFilterContext *	ctx,
		const char *	cmd,
		const char *	args,
		char *	res,
		int	res_len,
		int	flags
	)

static

Definition at line 393 of file vf_hue.c.

Variable Documentation

const char* const var_names[]

static

Initial value:

= {
    "n",   
    "pts", 
    "r",   
    "t",   
    "tb",  
    NULL
}

Definition at line 42 of file vf_hue.c.

Referenced by set_expr().

const AVOption hue_options[]

static

Initial value:

= {
    { "h", "set the hue angle degrees expression", OFFSET(hue_deg_expr), AV_OPT_TYPE_STRING,
      { .str = NULL }, .flags = FLAGS },
    { "s", "set the saturation expression", OFFSET(saturation_expr), AV_OPT_TYPE_STRING,
      { .str = "1" }, .flags = FLAGS },
    { "H", "set the hue angle radians expression", OFFSET(hue_expr), AV_OPT_TYPE_STRING,
      { .str = NULL }, .flags = FLAGS },
    { "b", "set the brightness expression", OFFSET(brightness_expr), AV_OPT_TYPE_STRING,
      { .str = "0" }, .flags = FLAGS },
    { NULL }
}

Definition at line 87 of file vf_hue.c.

const AVFilterPad hue_inputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .filter_frame = filter_frame,
        .config_props = config_props,
    },
    { NULL }
}

Definition at line 423 of file vf_hue.c.

const AVFilterPad hue_outputs[]

static

Initial value:

= {
    {
        .name = "default",
        .type = AVMEDIA_TYPE_VIDEO,
    },
    { NULL }
}

Definition at line 433 of file vf_hue.c.

AVFilter ff_vf_hue

Initial value:

= {
    .name            = "hue",
    .description     = NULL_IF_CONFIG_SMALL("Adjust the hue and saturation of the input video."),
    .priv_size       = sizeof(HueContext),
    .init            = init,
    .uninit          = uninit,
    .query_formats   = query_formats,
    .process_command = process_command,
    .inputs          = hue_inputs,
    .outputs         = hue_outputs,
    .priv_class      = &hue_class,
    .flags           = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
}

Definition at line 441 of file vf_hue.c.

Data Structures

Macros

Enumerations

Functions

Variables

Detailed Description

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation

Variable Documentation