temporal field interlace filter, ported from MPlayer/libmpcodecs More...

#include "libavutil/opt.h"
#include "libavutil/imgutils.h"
#include "libavutil/avassert.h"
#include "avfilter.h"
#include "internal.h"
#include "tinterlace.h"

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

#define	FLAGS AV_OPT_FLAG_FILTERING_PARAM\|AV_OPT_FLAG_VIDEO_PARAM

#define	TINTERLACE_FLAG_VLPF 01

#define	TINTERLACE_FLAG_EXACT_TB 2

#define	FULL_SCALE_YUVJ_FORMATS AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P

#define	FIELD_UPPER 0

#define	FIELD_LOWER 1

#define	FIELD_UPPER_AND_LOWER 2

Functions
	AVFILTER_DEFINE_CLASS (tinterlace)

static int	query_formats (AVFilterContext *ctx)

static void	lowpass_line_c (uint8_t dstp, ptrdiff_t width, const uint8_t srcp, const uint8_t srcp_above, const uint8_t srcp_below)

static av_cold void	uninit (AVFilterContext *ctx)

static int	config_out_props (AVFilterLink *outlink)

static void	copy_picture_field (TInterlaceContext tinterlace, uint8_t dst[4], int dst_linesize[4], const uint8_t *src[4], int src_linesize[4], enum AVPixelFormat format, int w, int src_h, int src_field, int interleave, int dst_field, int flags)
	Copy picture field from src to dst.

static int	filter_frame (AVFilterLink inlink, AVFrame picref)

Variables
static const AVOption	tinterlace_options []

static enum AVPixelFormat	full_scale_yuvj_pix_fmts []

static const AVRational	standard_tbs []

static const AVFilterPad	tinterlace_inputs []

static const AVFilterPad	tinterlace_outputs []

AVFilter	ff_vf_tinterlace

Detailed Description

temporal field interlace filter, ported from MPlayer/libmpcodecs

Definition in file vf_tinterlace.c.

Macro Definition Documentation

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

Definition at line 35 of file vf_tinterlace.c.

#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 36 of file vf_tinterlace.c.

#define TINTERLACE_FLAG_VLPF 01

Definition at line 37 of file vf_tinterlace.c.

Referenced by config_out_props(), and copy_picture_field().

#define TINTERLACE_FLAG_EXACT_TB 2

Definition at line 38 of file vf_tinterlace.c.

#define FULL_SCALE_YUVJ_FORMATS AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P

Definition at line 60 of file vf_tinterlace.c.

Referenced by query_formats().

#define FIELD_UPPER 0

Definition at line 178 of file vf_tinterlace.c.

Referenced by copy_picture_field(), and filter_frame().

#define FIELD_LOWER 1

Definition at line 179 of file vf_tinterlace.c.

Referenced by copy_picture_field(), and filter_frame().

#define FIELD_UPPER_AND_LOWER 2

Definition at line 180 of file vf_tinterlace.c.

Referenced by copy_picture_field(), and filter_frame().

Function Documentation

AVFILTER_DEFINE_CLASS ( tinterlace )

static int query_formats ( AVFilterContext * ctx )

static

Definition at line 73 of file vf_tinterlace.c.

static void lowpass_line_c	(	uint8_t *	dstp,
		ptrdiff_t	width,
		const uint8_t *	srcp,
		const uint8_t *	srcp_above,
		const uint8_t *	srcp_below
	)

static

Definition at line 88 of file vf_tinterlace.c.

static av_cold void uninit ( AVFilterContext * ctx )

static

Definition at line 100 of file vf_tinterlace.c.

static int config_out_props ( AVFilterLink * outlink )

static

Definition at line 109 of file vf_tinterlace.c.

static void copy_picture_field	(	TInterlaceContext *	tinterlace,
		uint8_t *	dst[4],
		int	dst_linesize[4],
		const uint8_t *	src[4],
		int	src_linesize[4],
		enum AVPixelFormat	format,
		int	w,
		int	src_h,
		int	src_field,
		int	interleave,
		int	dst_field,
		int	flags
	)

inlinestatic

Copy picture field from src to dst.

Parameters

src_field	copy from upper, lower field or both
interleave	leave a padding line between each copied line
dst_field	copy to upper or lower field, only meaningful when interleave is selected
flags	context flags

Definition at line 192 of file vf_tinterlace.c.

Referenced by filter_frame().

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

static

Definition at line 239 of file vf_tinterlace.c.

Variable Documentation

const AVOption tinterlace_options[]

static

Initial value:

= {
    {"mode",              "select interlace mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=MODE_MERGE}, 0, MODE_NB-1, FLAGS, "mode"},
    {"merge",             "merge fields",                                 0, AV_OPT_TYPE_CONST, {.i64=MODE_MERGE},             INT_MIN, INT_MAX, FLAGS, "mode"},
    {"drop_even",         "drop even fields",                             0, AV_OPT_TYPE_CONST, {.i64=MODE_DROP_EVEN},         INT_MIN, INT_MAX, FLAGS, "mode"},
    {"drop_odd",          "drop odd fields",                              0, AV_OPT_TYPE_CONST, {.i64=MODE_DROP_ODD},          INT_MIN, INT_MAX, FLAGS, "mode"},
    {"pad",               "pad alternate lines with black",               0, AV_OPT_TYPE_CONST, {.i64=MODE_PAD},               INT_MIN, INT_MAX, FLAGS, "mode"},
    {"interleave_top",    "interleave top and bottom fields",             0, AV_OPT_TYPE_CONST, {.i64=MODE_INTERLEAVE_TOP},    INT_MIN, INT_MAX, FLAGS, "mode"},
    {"interleave_bottom", "interleave bottom and top fields",             0, AV_OPT_TYPE_CONST, {.i64=MODE_INTERLEAVE_BOTTOM}, INT_MIN, INT_MAX, FLAGS, "mode"},
    {"interlacex2",       "interlace fields from two consecutive frames", 0, AV_OPT_TYPE_CONST, {.i64=MODE_INTERLACEX2},       INT_MIN, INT_MAX, FLAGS, "mode"},
    {"flags",             "set flags", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, INT_MAX, 0, "flags" },
    {"low_pass_filter",   "enable vertical low-pass filter",              0, AV_OPT_TYPE_CONST, {.i64 = TINTERLACE_FLAG_VLPF}, INT_MIN, INT_MAX, FLAGS, "flags" },
    {"vlpf",              "enable vertical low-pass filter",              0, AV_OPT_TYPE_CONST, {.i64 = TINTERLACE_FLAG_VLPF}, INT_MIN, INT_MAX, FLAGS, "flags" },
    {"exact_tb",          "force a timebase which can represent timestamps exactly", 0, AV_OPT_TYPE_CONST, {.i64 = TINTERLACE_FLAG_EXACT_TB}, INT_MIN, INT_MAX, FLAGS, "flags" },
    {NULL}
}

Definition at line 40 of file vf_tinterlace.c.

enum AVPixelFormat full_scale_yuvj_pix_fmts[]

static

Initial value:

= {
    FULL_SCALE_YUVJ_FORMATS, AV_PIX_FMT_NONE
}

Definition at line 63 of file vf_tinterlace.c.

Referenced by config_out_props().

const AVRational standard_tbs[]

static

Initial value:

= {
    {1, 25},
    {1, 30},
    {1001, 30000},
}

Definition at line 67 of file vf_tinterlace.c.

const AVFilterPad tinterlace_inputs[]

static

Initial value:

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

Definition at line 386 of file vf_tinterlace.c.

const AVFilterPad tinterlace_outputs[]

static

Initial value:

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

Definition at line 395 of file vf_tinterlace.c.

AVFilter ff_vf_tinterlace

Initial value:

= {
    .name          = "tinterlace",
    .description   = NULL_IF_CONFIG_SMALL("Perform temporal field interlacing."),
    .priv_size     = sizeof(TInterlaceContext),
    .uninit        = uninit,
    .query_formats = query_formats,
    .inputs        = tinterlace_inputs,
    .outputs       = tinterlace_outputs,
    .priv_class    = &tinterlace_class,
}

Definition at line 404 of file vf_tinterlace.c.

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

Function Documentation

Variable Documentation