vf_colorspace.c File Reference

#include "libavutil/attributes.h"
#include "libavutil/avassert.h"
#include "libavutil/csp.h"
#include "libavutil/frame.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)
#define	supported_subsampling(lcw, lch)
#define	supported_format(d)
#define	OFFSET(x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM
#define	ENUM(x, y, 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 }
enum	ClipGamutMode { CLIP_GAMUT_NONE , CLIP_GAMUT_RGB , NB_CLIP_GAMUT }

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 []
static const AVOption	colorspace_options []
static const AVFilterPad	inputs []
static const AVFilterPad	outputs []
const FFFilter	ff_vf_colorspace

Macro Definition Documentation

supported_depth

#define supported_depth

(

d

)

Value:

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

supported_subsampling

#define supported_subsampling	(		lcw,
			lch )

Value:

    (((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))

Referenced by create_filtergraph().

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(ColorSpaceContext, x)

Definition at line 917 of file vf_colorspace.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM

Definition at line 918 of file vf_colorspace.c.

ENUM

#define ENUM	(		x,
			y,
			z )

Value:

{ x, "", 0, AV_OPT_TYPE_CONST, { .i64 = y }, INT_MIN, INT_MAX, FLAGS, .unit = z }

Definition at line 919 of file vf_colorspace.c.

Enumeration Type Documentation

DitherMode

enum DitherMode

Enumerator
DITHER_NONE
DITHER_FSB
DITHER_NB

Definition at line 43 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 49 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 62 of file vf_colorspace.c.

ClipGamutMode

enum ClipGamutMode

Enumerator
CLIP_GAMUT_NONE
CLIP_GAMUT_RGB
NB_CLIP_GAMUT

Definition at line 70 of file vf_colorspace.c.

Function Documentation

get_transfer_characteristics()

static const struct TransferCharacteristics * get_transfer_characteristics ( enum AVColorTransferCharacteristic trc )

static

Definition at line 192 of file vf_colorspace.c.

Referenced by create_filtergraph().

fill_gamma_table()

static int fill_gamma_table ( ColorSpaceContext * s )

static

Definition at line 205 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 254 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 292 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 315 of file vf_colorspace.c.

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 385 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 415 of file vf_colorspace.c.

Referenced by filter_frame().

init()

static av_cold int init ( AVFilterContext * ctx )

static

Definition at line 684 of file vf_colorspace.c.

uninit()

static void uninit ( AVFilterContext * ctx )

static

Definition at line 713 of file vf_colorspace.c.

Referenced by filter_frame().

filter_frame()

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

static

Definition at line 731 of file vf_colorspace.c.

query_formats()

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

static

Definition at line 856 of file vf_colorspace.c.

config_props()

static int config_props ( AVFilterLink * outlink )

static

Definition at line 898 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 76 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 89 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 102 of file vf_colorspace.c.

Referenced by create_filtergraph(), and init().

transfer_characteristics

const struct TransferCharacteristics transfer_characteristics[]

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 178 of file vf_colorspace.c.

Referenced by color_config(), frame_header(), get_transfer_characteristics(), h264_metadata_update_sps(), mpeg2_metadata_init(), parse_mpeg2_extension_descriptor(), sequence_display_extension(), vui_parameters(), vui_parameters(), vui_parameters(), vui_parameters_default(), and vui_parameters_default().

colorspace_options

const AVOption colorspace_options[]

static

Definition at line 921 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 1049 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 1057 of file vf_colorspace.c.

ff_vf_colorspace

const FFFilter ff_vf_colorspace

Initial value:

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

Definition at line 1065 of file vf_colorspace.c.