vf_colorspace.c File Reference

#include "libavutil/avassert.h"
#include "libavutil/csp.h"
#include "libavutil/mem.h"
#include "libavutil/mem_internal.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/pixfmt.h"
#include "avfilter.h"
#include "colorspacedsp.h"
#include "filters.h"
#include "formats.h"
#include "video.h"
#include "colorspace.h"

Go to the source code of this file.

Data Structures
struct	TransferCharacteristics
struct	ColorSpaceContext
struct	ThreadData
	Used for passing data between threads. More...

Macros
#define	supported_depth(d)   ((d) == 8 || (d) == 10 || (d) == 12)
#define	supported_subsampling(lcw, lch)   (((lcw) == 0 && (lch) == 0) || ((lcw) == 1 && (lch) == 0) || ((lcw) == 1 && (lch) == 1))
#define	supported_format(d)
#define	OFFSET(x)   offsetof(ColorSpaceContext, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM
#define	ENUM(x, y, z)   { x, "", 0, AV_OPT_TYPE_CONST, { .i64 = y }, INT_MIN, INT_MAX, FLAGS, .unit = z }

Enumerations
enum	DitherMode { DITHER_NONE, DITHER_FSB, DITHER_NB }
enum	Colorspace {   CS_UNSPECIFIED, CS_BT470M, CS_BT470BG, CS_BT601_6_525,   CS_BT601_6_625, CS_BT709, CS_SMPTE170M, CS_SMPTE240M,   CS_BT2020, CS_NB }
enum	WhitepointAdaptation {   WP_ADAPT_BRADFORD, WP_ADAPT_VON_KRIES, NB_WP_ADAPT_NON_IDENTITY, WP_ADAPT_IDENTITY = NB_WP_ADAPT_NON_IDENTITY,   NB_WP_ADAPT }

Functions
static const struct TransferCharacteristics *	get_transfer_characteristics (enum AVColorTransferCharacteristic trc)
static int	fill_gamma_table (ColorSpaceContext *s)
static void	fill_whitepoint_conv_table (double out[3][3], enum WhitepointAdaptation wp_adapt, const AVWhitepointCoefficients *wp_src, const AVWhitepointCoefficients *wp_dst)
static void	apply_lut (int16_t *buf[3], ptrdiff_t stride, int w, int h, const int16_t *lut)
static int	convert (AVFilterContext *ctx, void *data, int job_nr, int n_jobs)
static int	get_range_off (AVFilterContext *ctx, int *off, int *y_rng, int *uv_rng, enum AVColorRange rng, int depth)
static int	create_filtergraph (AVFilterContext *ctx, const AVFrame *in, const AVFrame *out)
static av_cold int	init (AVFilterContext *ctx)
static void	uninit (AVFilterContext *ctx)
static int	filter_frame (AVFilterLink *link, AVFrame *in)
static int	query_formats (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
static int	config_props (AVFilterLink *outlink)
	AVFILTER_DEFINE_CLASS (colorspace)

Variables
static enum AVColorTransferCharacteristic	default_trc [CS_NB+1]
static enum AVColorPrimaries	default_prm [CS_NB+1]
static enum AVColorSpace	default_csp [CS_NB+1]
static const struct TransferCharacteristics	transfer_characteristics [AVCOL_TRC_NB]
static const AVOption	colorspace_options []
static const AVFilterPad	inputs []
static const AVFilterPad	outputs []
const AVFilter	ff_vf_colorspace

Macro Definition Documentation

supported_depth

#define supported_depth

(

d

)

((d) == 8 || (d) == 10 || (d) == 12)

supported_subsampling

#define supported_subsampling	(		lcw,
			lch
	)		(((lcw) == 0 && (lch) == 0) || ((lcw) == 1 && (lch) == 0) || ((lcw) == 1 && (lch) == 1))

supported_format

#define supported_format

(

d

)

Value:

    ((d) != NULL && (d)->nb_components == 3 && \
     !((d)->flags & AV_PIX_FMT_FLAG_RGB) && \
     supported_depth((d)->comp[0].depth) && \
     supported_subsampling((d)->log2_chroma_w, (d)->log2_chroma_h))

OFFSET

#define OFFSET

(

x

)

offsetof(ColorSpaceContext, x)

Definition at line 894 of file vf_colorspace.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM

Definition at line 895 of file vf_colorspace.c.

ENUM

#define ENUM	(		x,
			y,
			z
	)		{ x, "", 0, AV_OPT_TYPE_CONST, { .i64 = y }, INT_MIN, INT_MAX, FLAGS, .unit = z }

Definition at line 896 of file vf_colorspace.c.

Enumeration Type Documentation

DitherMode

enum DitherMode

Enumerator
DITHER_NONE
DITHER_FSB
DITHER_NB

Definition at line 41 of file vf_colorspace.c.

Colorspace

enum Colorspace

Enumerator
CS_UNSPECIFIED
CS_BT470M
CS_BT470BG
CS_BT601_6_525
CS_BT601_6_625
CS_BT709
CS_SMPTE170M
CS_SMPTE240M
CS_BT2020
CS_NB

Definition at line 47 of file vf_colorspace.c.

WhitepointAdaptation

enum WhitepointAdaptation

Enumerator
WP_ADAPT_BRADFORD
WP_ADAPT_VON_KRIES
NB_WP_ADAPT_NON_IDENTITY
WP_ADAPT_IDENTITY
NB_WP_ADAPT

Definition at line 60 of file vf_colorspace.c.

Function Documentation

get_transfer_characteristics()

static const struct TransferCharacteristics* get_transfer_characteristics ( enum AVColorTransferCharacteristic  trc )

static

Definition at line 180 of file vf_colorspace.c.

Referenced by create_filtergraph().

fill_gamma_table()

static int fill_gamma_table ( ColorSpaceContext *  s )

static

Definition at line 193 of file vf_colorspace.c.

Referenced by create_filtergraph().

fill_whitepoint_conv_table()

static void fill_whitepoint_conv_table ( double  out[3][3], enum WhitepointAdaptation  wp_adapt, const AVWhitepointCoefficients *  wp_src, const AVWhitepointCoefficients *  wp_dst  )

static

Definition at line 237 of file vf_colorspace.c.

Referenced by create_filtergraph().

apply_lut()

static void apply_lut ( int16_t *  buf[3], ptrdiff_t  stride, int  w, int  h, const int16_t *  lut  )

static

Definition at line 275 of file vf_colorspace.c.

Referenced by convert().

convert()

static int convert ( AVFilterContext *  ctx, void *  data, int  job_nr, int  n_jobs  )

static

Definition at line 298 of file vf_colorspace.c.

Referenced by filter_frame().

get_range_off()

static int get_range_off ( AVFilterContext *  ctx, int *  off, int *  y_rng, int *  uv_rng, enum AVColorRange  rng, int  depth  )

static

Definition at line 368 of file vf_colorspace.c.

Referenced by create_filtergraph().

create_filtergraph()

static int create_filtergraph ( AVFilterContext *  ctx, const AVFrame *  in, const AVFrame *  out  )

static

Definition at line 398 of file vf_colorspace.c.

Referenced by filter_frame().

init()

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 667 of file vf_colorspace.c.

uninit()

static void uninit ( AVFilterContext *  ctx )

static

Definition at line 696 of file vf_colorspace.c.

Referenced by filter_frame().

filter_frame()

static int filter_frame ( AVFilterLink *  link, AVFrame *  in  )

static

Definition at line 714 of file vf_colorspace.c.

query_formats()

static int query_formats ( const AVFilterContext *  ctx, AVFilterFormatsConfig **  cfg_in, AVFilterFormatsConfig **  cfg_out  )

static

Definition at line 833 of file vf_colorspace.c.

config_props()

static int config_props ( AVFilterLink *  outlink )

static

Definition at line 875 of file vf_colorspace.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

colorspace

)

Variable Documentation

default_trc

enum AVColorTransferCharacteristic default_trc[CS_NB+1]

static

Initial value:

= {
    [CS_UNSPECIFIED] = AVCOL_TRC_UNSPECIFIED,
    [CS_BT470M]      = AVCOL_TRC_GAMMA22,
    [CS_BT470BG]     = AVCOL_TRC_GAMMA28,
    [CS_BT601_6_525] = AVCOL_TRC_SMPTE170M,
    [CS_BT601_6_625] = AVCOL_TRC_SMPTE170M,
    [CS_BT709]       = AVCOL_TRC_BT709,
    [CS_SMPTE170M]   = AVCOL_TRC_SMPTE170M,
    [CS_SMPTE240M]   = AVCOL_TRC_SMPTE240M,
    [CS_BT2020]      = AVCOL_TRC_BT2020_10,
    [CS_NB]          = AVCOL_TRC_UNSPECIFIED,
}

Definition at line 68 of file vf_colorspace.c.

Referenced by create_filtergraph(), and filter_frame().

default_prm

enum AVColorPrimaries default_prm[CS_NB+1]

static

Initial value:

= {
    [CS_UNSPECIFIED] = AVCOL_PRI_UNSPECIFIED,
    [CS_BT470M]      = AVCOL_PRI_BT470M,
    [CS_BT470BG]     = AVCOL_PRI_BT470BG,
    [CS_BT601_6_525] = AVCOL_PRI_SMPTE170M,
    [CS_BT601_6_625] = AVCOL_PRI_BT470BG,
    [CS_BT709]       = AVCOL_PRI_BT709,
    [CS_SMPTE170M]   = AVCOL_PRI_SMPTE170M,
    [CS_SMPTE240M]   = AVCOL_PRI_SMPTE240M,
    [CS_BT2020]      = AVCOL_PRI_BT2020,
    [CS_NB]          = AVCOL_PRI_UNSPECIFIED,
}

Definition at line 81 of file vf_colorspace.c.

Referenced by create_filtergraph(), and filter_frame().

default_csp

enum AVColorSpace default_csp[CS_NB+1]

static

Initial value:

= {
    [CS_UNSPECIFIED] = AVCOL_SPC_UNSPECIFIED,
    [CS_BT470M]      = AVCOL_SPC_SMPTE170M,
    [CS_BT470BG]     = AVCOL_SPC_BT470BG,
    [CS_BT601_6_525] = AVCOL_SPC_SMPTE170M,
    [CS_BT601_6_625] = AVCOL_SPC_BT470BG,
    [CS_BT709]       = AVCOL_SPC_BT709,
    [CS_SMPTE170M]   = AVCOL_SPC_SMPTE170M,
    [CS_SMPTE240M]   = AVCOL_SPC_SMPTE240M,
    [CS_BT2020]      = AVCOL_SPC_BT2020_NCL,
    [CS_NB]          = AVCOL_SPC_UNSPECIFIED,
}

Definition at line 94 of file vf_colorspace.c.

Referenced by create_filtergraph(), and init().

transfer_characteristics

const struct TransferCharacteristics transfer_characteristics[AVCOL_TRC_NB]

static

Initial value:

= {
    [AVCOL_TRC_BT709]     = { 1.099,  0.018,  0.45, 4.5 },
    [AVCOL_TRC_GAMMA22]   = { 1.0,    0.0,    1.0 / 2.2, 0.0 },
    [AVCOL_TRC_GAMMA28]   = { 1.0,    0.0,    1.0 / 2.8, 0.0 },
    [AVCOL_TRC_SMPTE170M] = { 1.099,  0.018,  0.45, 4.5 },
    [AVCOL_TRC_SMPTE240M] = { 1.1115, 0.0228, 0.45, 4.0 },
    [AVCOL_TRC_LINEAR]    = { 1.0,    0.0,    1.0,  0.0 },
    [AVCOL_TRC_IEC61966_2_1] = { 1.055, 0.0031308, 1.0 / 2.4, 12.92 },
    [AVCOL_TRC_IEC61966_2_4] = { 1.099, 0.018, 0.45, 4.5 },
    [AVCOL_TRC_BT2020_10] = { 1.099,  0.018,  0.45, 4.5 },
    [AVCOL_TRC_BT2020_12] = { 1.0993, 0.0181, 0.45, 4.5 },
}

Definition at line 166 of file vf_colorspace.c.

Referenced by color_config(), get_transfer_characteristics(), h264_metadata_update_sps(), mpeg2_metadata_init(), sequence_display_extension(), vui_parameters(), and vui_parameters_default().

colorspace_options

const AVOption colorspace_options[]

static

Definition at line 898 of file vf_colorspace.c.

inputs

const AVFilterPad inputs[]

static

Initial value:

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

Definition at line 1017 of file vf_colorspace.c.

outputs

const AVFilterPad outputs[]

static

Initial value:

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

Definition at line 1025 of file vf_colorspace.c.

ff_vf_colorspace

const AVFilter ff_vf_colorspace

Initial value:

= {
    .name            = "colorspace",
    .description     = NULL_IF_CONFIG_SMALL("Convert between colorspaces."),
    .init            = init,
    .uninit          = uninit,
    .priv_size       = sizeof(ColorSpaceContext),
    .priv_class      = &colorspace_class,
    FILTER_INPUTS(inputs),
    FILTER_OUTPUTS(outputs),
    FILTER_QUERY_FUNC2(query_formats),
    .flags           = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
}

Definition at line 1033 of file vf_colorspace.c.