vf_colorspace.c File Reference

#include "libavutil/avassert.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/pixfmt.h"
#include "avfilter.h"
#include "colorspacedsp.h"
#include "formats.h"
#include "internal.h"
#include "video.h"
#include "colorspace.h"

Go to the source code of this file.

Data Structures
struct	ColorPrimaries
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, 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	Whitepoint {   WP_D65, WP_C, WP_DCI, WP_E,   WP_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 LumaCoefficients *	get_luma_coefficients (enum AVColorSpace csp)
static void	fill_rgb2yuv_table (const struct LumaCoefficients *coeffs, double rgb2yuv[3][3])
static const struct TransferCharacteristics *	get_transfer_characteristics (enum AVColorTransferCharacteristic trc)
static const struct ColorPrimaries *	get_color_primaries (enum AVColorPrimaries prm)
static int	fill_gamma_table (ColorSpaceContext *s)
static void	fill_whitepoint_conv_table (double out[3][3], enum WhitepointAdaptation wp_adapt, enum Whitepoint src, enum Whitepoint 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 int	init (AVFilterContext *ctx)
static void	uninit (AVFilterContext *ctx)
static int	filter_frame (AVFilterLink *link, AVFrame *in)
static int	query_formats (AVFilterContext *ctx)
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 double	ycgco_matrix [3][3]
static const double	gbr_matrix [3][3]
static const struct LumaCoefficients	luma_coefficients [AVCOL_SPC_NB]
static const struct TransferCharacteristics	transfer_characteristics [AVCOL_TRC_NB]
static const struct WhitepointCoefficients	whitepoint_coefficients [WP_NB]
static const struct ColorPrimaries	color_primaries [AVCOL_PRI_NB]
static const AVOption	colorspace_options []
static const AVFilterPad	inputs []
static const AVFilterPad	outputs []
AVFilter	ff_vf_colorspace

Macro Definition Documentation

#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

)

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))

Referenced by create_filtergraph().

#define OFFSET

(

x

)

offsetof(ColorSpaceContext, x)

Definition at line 992 of file vf_colorspace.c.

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM

Definition at line 993 of file vf_colorspace.c.

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

Definition at line 994 of file vf_colorspace.c.

Enumeration Type Documentation

enum DitherMode

Enumerator
DITHER_NONE
DITHER_FSB
DITHER_NB

Definition at line 38 of file vf_colorspace.c.

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 44 of file vf_colorspace.c.

enum Whitepoint

Enumerator
WP_D65
WP_C
WP_DCI
WP_E
WP_NB

Definition at line 57 of file vf_colorspace.c.

enum WhitepointAdaptation

Enumerator
WP_ADAPT_BRADFORD
WP_ADAPT_VON_KRIES
NB_WP_ADAPT_NON_IDENTITY
WP_ADAPT_IDENTITY
NB_WP_ADAPT

Definition at line 65 of file vf_colorspace.c.

Function Documentation

static const struct LumaCoefficients* get_luma_coefficients ( enum AVColorSpace  csp )

static

Definition at line 205 of file vf_colorspace.c.

Referenced by create_filtergraph().

static void fill_rgb2yuv_table ( const struct LumaCoefficients *  coeffs, double  rgb2yuv[3][3]  )

static

Definition at line 218 of file vf_colorspace.c.

Referenced by create_filtergraph().

static const struct TransferCharacteristics* get_transfer_characteristics ( enum AVColorTransferCharacteristic  trc )

static

Definition at line 261 of file vf_colorspace.c.

Referenced by create_filtergraph().

static const struct ColorPrimaries* get_color_primaries ( enum AVColorPrimaries  prm )

static

Definition at line 295 of file vf_colorspace.c.

Referenced by create_filtergraph().

static int fill_gamma_table ( ColorSpaceContext *  s )

static

Definition at line 308 of file vf_colorspace.c.

Referenced by create_filtergraph().

static void fill_whitepoint_conv_table ( double  out[3][3], enum WhitepointAdaptation  wp_adapt, enum Whitepoint  src, enum Whitepoint  dst  )

static

Definition at line 352 of file vf_colorspace.c.

Referenced by create_filtergraph().

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

static

Definition at line 389 of file vf_colorspace.c.

Referenced by convert().

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

static

Definition at line 412 of file vf_colorspace.c.

Referenced by filter_frame().

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

static

Definition at line 482 of file vf_colorspace.c.

Referenced by create_filtergraph().

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

static

Definition at line 512 of file vf_colorspace.c.

Referenced by filter_frame().

static int init ( AVFilterContext *  ctx )

static

Definition at line 807 of file vf_colorspace.c.

static void uninit ( AVFilterContext *  ctx )

static

Definition at line 816 of file vf_colorspace.c.

Referenced by filter_frame().

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

static

Definition at line 834 of file vf_colorspace.c.

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 945 of file vf_colorspace.c.

static int config_props ( AVFilterLink *  outlink )

static

Definition at line 973 of file vf_colorspace.c.

AVFILTER_DEFINE_CLASS

(

colorspace

)

Variable Documentation

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 73 of file vf_colorspace.c.

Referenced by create_filtergraph(), and filter_frame().

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 86 of file vf_colorspace.c.

Referenced by create_filtergraph(), and filter_frame().

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 99 of file vf_colorspace.c.

Referenced by create_filtergraph(), and filter_frame().

const double ycgco_matrix[3][3]

static

Initial value:

=
{
    {  0.25, 0.5,  0.25 },
    { -0.25, 0.5, -0.25 },
    {  0.5,  0,   -0.5  },
}

Definition at line 173 of file vf_colorspace.c.

Referenced by fill_rgb2yuv_table().

const double gbr_matrix[3][3]

static

Initial value:

=
{
    { 0,    1,   0   },
    { 0,   -0.5, 0.5 },
    { 0.5, -0.5, 0   },
}

Definition at line 180 of file vf_colorspace.c.

Referenced by fill_rgb2yuv_table().

const struct LumaCoefficients luma_coefficients[AVCOL_SPC_NB]

static

Initial value:

= {
    [AVCOL_SPC_FCC]        = { 0.30,   0.59,   0.11   },
    [AVCOL_SPC_BT470BG]    = { 0.299,  0.587,  0.114  },
    [AVCOL_SPC_SMPTE170M]  = { 0.299,  0.587,  0.114  },
    [AVCOL_SPC_BT709]      = { 0.2126, 0.7152, 0.0722 },
    [AVCOL_SPC_SMPTE240M]  = { 0.212,  0.701,  0.087  },
    [AVCOL_SPC_YCOCG]      = { 0.25,   0.5,    0.25   },
    [AVCOL_SPC_RGB]        = { 1,      1,      1      },
    [AVCOL_SPC_BT2020_NCL] = { 0.2627, 0.6780, 0.0593 },
    [AVCOL_SPC_BT2020_CL]  = { 0.2627, 0.6780, 0.0593 },
}

Definition at line 193 of file vf_colorspace.c.

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_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 248 of file vf_colorspace.c.

Referenced by color_config(), parse_color_config(), sequence_display_extension(), vui_parameters(), and vui_parameters_default().

const struct WhitepointCoefficients whitepoint_coefficients[WP_NB]

static

Initial value:

= {
    [WP_D65] = { 0.3127, 0.3290 },
    [WP_C]   = { 0.3100, 0.3160 },
    [WP_DCI] = { 0.3140, 0.3510 },
    [WP_E]   = { 1/3.0f, 1/3.0f },
}

Definition at line 274 of file vf_colorspace.c.

const struct ColorPrimaries color_primaries[AVCOL_PRI_NB]

static

Initial value:

= {
    [AVCOL_PRI_BT709]     = { WP_D65, { 0.640, 0.330, 0.300, 0.600, 0.150, 0.060 } },
    [AVCOL_PRI_BT470M]    = { WP_C,   { 0.670, 0.330, 0.210, 0.710, 0.140, 0.080 } },
    [AVCOL_PRI_BT470BG]   = { WP_D65, { 0.640, 0.330, 0.290, 0.600, 0.150, 0.060 } },
    [AVCOL_PRI_SMPTE170M] = { WP_D65, { 0.630, 0.340, 0.310, 0.595, 0.155, 0.070 } },
    [AVCOL_PRI_SMPTE240M] = { WP_D65, { 0.630, 0.340, 0.310, 0.595, 0.155, 0.070 } },
    [AVCOL_PRI_SMPTE428]  = { WP_E,   { 0.735, 0.265, 0.274, 0.718, 0.167, 0.009 } },
    [AVCOL_PRI_SMPTE431]  = { WP_DCI, { 0.680, 0.320, 0.265, 0.690, 0.150, 0.060 } },
    [AVCOL_PRI_SMPTE432]  = { WP_D65, { 0.680, 0.320, 0.265, 0.690, 0.150, 0.060 } },
    [AVCOL_PRI_FILM]      = { WP_C,   { 0.681, 0.319, 0.243, 0.692, 0.145, 0.049 } },
    [AVCOL_PRI_BT2020]    = { WP_D65, { 0.708, 0.292, 0.170, 0.797, 0.131, 0.046 } },
    [AVCOL_PRI_JEDEC_P22] = { WP_D65, { 0.630, 0.340, 0.295, 0.605, 0.155, 0.077 } },
}

Definition at line 281 of file vf_colorspace.c.

Referenced by color_config(), mov_read_colr(), mov_read_vpcc(), and parse_color_config().

const AVOption colorspace_options[]

static

Definition at line 996 of file vf_colorspace.c.

const AVFilterPad inputs[]

static

Initial value:

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

Definition at line 1113 of file vf_colorspace.c.

const AVFilterPad outputs[]

static

Initial value:

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

Definition at line 1122 of file vf_colorspace.c.

AVFilter ff_vf_colorspace

Initial value:

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

Definition at line 1131 of file vf_colorspace.c.