#include "libavutil/avassert.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "libavutil/pixdesc.h"
#include "libavutil/imgutils.h"
#include "libavutil/intreadwrite.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Data Structures
struct	HistogramContext

Macros
#define	OFFSET(x) offsetof(HistogramContext, x)

#define	FLAGS AV_OPT_FLAG_FILTERING_PARAM\|AV_OPT_FLAG_VIDEO_PARAM

Enumerations
enum	HistogramMode { MODE_LEVELS, MODE_WAVEFORM, MODE_COLOR, MODE_COLOR2, MODE_NB }

Functions
	AVFILTER_DEFINE_CLASS (histogram)

static int	query_formats (AVFilterContext *ctx)

static int	config_input (AVFilterLink *inlink)

static int	config_output (AVFilterLink *outlink)

static void	gen_waveform (HistogramContext h, AVFrame inpicref, AVFrame *outpicref, int component, int intensity, int offset, int col_mode)

static int	filter_frame (AVFilterLink inlink, AVFrame in)

Variables
static const AVOption	histogram_options []

static enum AVPixelFormat	color_pix_fmts []

static enum AVPixelFormat	levels_in_pix_fmts []

static enum AVPixelFormat	levels_out_yuv8_pix_fmts []

static enum AVPixelFormat	levels_out_yuv9_pix_fmts []

static enum AVPixelFormat	levels_out_yuv10_pix_fmts []

static enum AVPixelFormat	levels_out_rgb8_pix_fmts []

static enum AVPixelFormat	levels_out_rgb9_pix_fmts []

static enum AVPixelFormat	levels_out_rgb10_pix_fmts []

static enum AVPixelFormat	waveform_pix_fmts []

static const uint8_t	black_yuva_color [4] = { 0, 127, 127, 255 }

static const uint8_t	black_gbrp_color [4] = { 0, 0, 0, 255 }

static const uint8_t	white_yuva_color [4] = { 255, 127, 127, 255 }

static const uint8_t	white_gbrp_color [4] = { 255, 255, 255, 255 }

static const AVFilterPad	inputs []

static const AVFilterPad	outputs []

AVFilter	ff_vf_histogram

Macro Definition Documentation

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

Definition at line 62 of file vf_histogram.c.

#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 63 of file vf_histogram.c.

Enumeration Type Documentation

enum HistogramMode

Enumerator
MODE_LEVELS
MODE_WAVEFORM
MODE_COLOR
MODE_COLOR2
MODE_NB

Definition at line 32 of file vf_histogram.c.

Function Documentation

AVFILTER_DEFINE_CLASS ( histogram )

static int query_formats ( AVFilterContext * ctx )

static

Definition at line 153 of file vf_histogram.c.

static int config_input ( AVFilterLink * inlink )

static

Definition at line 224 of file vf_histogram.c.

static int config_output ( AVFilterLink * outlink )

static

Definition at line 254 of file vf_histogram.c.

static void gen_waveform	(	HistogramContext *	h,
		AVFrame *	inpicref,
		AVFrame *	outpicref,
		int	component,
		int	intensity,
		int	offset,
		int	col_mode
	)

static

Definition at line 291 of file vf_histogram.c.

Referenced by filter_frame().

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

static

Definition at line 338 of file vf_histogram.c.

Variable Documentation

const AVOption histogram_options[]

static

Initial value:

= {
    { "mode", "set histogram mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=MODE_LEVELS}, 0, MODE_NB-1, FLAGS, "mode"},
    { "levels", "standard histogram", 0, AV_OPT_TYPE_CONST, {.i64=MODE_LEVELS}, 0, 0, FLAGS, "mode" },
    { "waveform", "per row/column luminance graph", 0, AV_OPT_TYPE_CONST, {.i64=MODE_WAVEFORM}, 0, 0, FLAGS, "mode" },
    { "color", "chroma values in vectorscope", 0, AV_OPT_TYPE_CONST, {.i64=MODE_COLOR}, 0, 0, FLAGS, "mode" },
    { "color2", "chroma values in vectorscope", 0, AV_OPT_TYPE_CONST, {.i64=MODE_COLOR2}, 0, 0, FLAGS, "mode" },
    { "level_height", "set level height", OFFSET(level_height), AV_OPT_TYPE_INT, {.i64=200}, 50, 2048, FLAGS},
    { "scale_height", "set scale height", OFFSET(scale_height), AV_OPT_TYPE_INT, {.i64=12}, 0, 40, FLAGS},
    { "step", "set waveform step value", OFFSET(step), AV_OPT_TYPE_INT, {.i64=10}, 1, 255, FLAGS},
    { "waveform_mode", "set waveform mode", OFFSET(waveform_mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "waveform_mode"},
    { "row",   NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "waveform_mode" },
    { "column", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "waveform_mode" },
    { "waveform_mirror", "set waveform mirroring", OFFSET(waveform_mirror), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "waveform_mirror"},
    { "display_mode", "set display mode", OFFSET(display_mode), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, "display_mode"},
    { "parade",  NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "display_mode" },
    { "overlay", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "display_mode" },
    { "levels_mode", "set levels mode", OFFSET(levels_mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "levels_mode"},
    { "linear",      NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "levels_mode" },
    { "logarithmic", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "levels_mode" },
    { "components", "set color components to display", OFFSET(components), AV_OPT_TYPE_INT, {.i64=7}, 1, 15, FLAGS},
    { NULL }
}

Definition at line 65 of file vf_histogram.c.

enum AVPixelFormat color_pix_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUVJ444P,
    AV_PIX_FMT_NONE
}

Definition at line 90 of file vf_histogram.c.

Referenced by query_formats().

enum AVPixelFormat levels_in_pix_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVJ420P,
    AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVJ422P,
    AV_PIX_FMT_YUV411P,  AV_PIX_FMT_YUVJ411P,
    AV_PIX_FMT_YUV440P,  AV_PIX_FMT_YUV410P,
    AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P,
    AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
    AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
    AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
    AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
    AV_PIX_FMT_GBRAP,    AV_PIX_FMT_GBRP,
    AV_PIX_FMT_GBRP9,    AV_PIX_FMT_GBRP10,
    AV_PIX_FMT_GRAY8,
    AV_PIX_FMT_NONE
}

Definition at line 95 of file vf_histogram.c.

Referenced by query_formats().

enum AVPixelFormat levels_out_yuv8_pix_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P,
    AV_PIX_FMT_NONE
}

Definition at line 111 of file vf_histogram.c.

Referenced by query_formats().

enum AVPixelFormat levels_out_yuv9_pix_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUV444P9,
    AV_PIX_FMT_NONE
}

Definition at line 116 of file vf_histogram.c.

Referenced by query_formats().

enum AVPixelFormat levels_out_yuv10_pix_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUV444P10,
    AV_PIX_FMT_NONE
}

Definition at line 121 of file vf_histogram.c.

Referenced by query_formats().

enum AVPixelFormat levels_out_rgb8_pix_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_GBRAP,    AV_PIX_FMT_GBRP,
    AV_PIX_FMT_NONE
}

Definition at line 126 of file vf_histogram.c.

Referenced by query_formats().

enum AVPixelFormat levels_out_rgb9_pix_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_GBRP9,
    AV_PIX_FMT_NONE
}

Definition at line 131 of file vf_histogram.c.

Referenced by query_formats().

enum AVPixelFormat levels_out_rgb10_pix_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_GBRP10,
    AV_PIX_FMT_NONE
}

Definition at line 136 of file vf_histogram.c.

Referenced by query_formats().

enum AVPixelFormat waveform_pix_fmts[]

static

Initial value:

= {
     AV_PIX_FMT_GBRP,     AV_PIX_FMT_GBRAP,
     AV_PIX_FMT_YUV422P,  AV_PIX_FMT_YUV420P,
     AV_PIX_FMT_YUV444P,  AV_PIX_FMT_YUV440P,
     AV_PIX_FMT_YUV411P,  AV_PIX_FMT_YUV410P,
     AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUVJ420P,
     AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ444P,
     AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA420P,
     AV_PIX_FMT_GRAY8,
     AV_PIX_FMT_NONE
}

Definition at line 141 of file vf_histogram.c.

Referenced by query_formats().

const uint8_t black_yuva_color[4] = { 0, 127, 127, 255 }

static

Definition at line 219 of file vf_histogram.c.

Referenced by config_input().

const uint8_t black_gbrp_color[4] = { 0, 0, 0, 255 }

static

Definition at line 220 of file vf_histogram.c.

Referenced by config_input().

const uint8_t white_yuva_color[4] = { 255, 127, 127, 255 }

static

Definition at line 221 of file vf_histogram.c.

Referenced by config_input().

const uint8_t white_gbrp_color[4] = { 255, 255, 255, 255 }

static

Definition at line 222 of file vf_histogram.c.

Referenced by config_input().

const AVFilterPad inputs[]

static

Initial value:

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

Definition at line 495 of file vf_histogram.c.

const AVFilterPad outputs[]

static

Initial value:

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

Definition at line 505 of file vf_histogram.c.

AVFilter ff_vf_histogram

Initial value:

= {
    .name          = "histogram",
    .description   = NULL_IF_CONFIG_SMALL("Compute and draw a histogram."),
    .priv_size     = sizeof(HistogramContext),
    .query_formats = query_formats,
    .inputs        = inputs,
    .outputs       = outputs,
    .priv_class    = &histogram_class,
}

Definition at line 514 of file vf_histogram.c.

Data Structures

Macros

Enumerations

Functions

Variables

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation

Variable Documentation