vf_interlace.c File Reference

progressive to interlaced content filter, inspired by heavy debugging of tinterlace filter More...

#include "libavutil/common.h"
#include "libavutil/opt.h"
#include "libavutil/imgutils.h"
#include "libavutil/avassert.h"
#include "formats.h"
#include "avfilter.h"
#include "interlace.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Macros
#define	OFFSET(x)   offsetof(InterlaceContext, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Functions
	AVFILTER_DEFINE_CLASS (interlace)
static void	lowpass_line_c (uint8_t *dstp, ptrdiff_t linesize, const uint8_t *srcp, ptrdiff_t mref, ptrdiff_t pref, int clip_max)
static void	lowpass_line_c_16 (uint8_t *dst8, ptrdiff_t linesize, const uint8_t *src8, ptrdiff_t mref, ptrdiff_t pref, int clip_max)
static void	lowpass_line_complex_c (uint8_t *dstp, ptrdiff_t linesize, const uint8_t *srcp, ptrdiff_t mref, ptrdiff_t pref, int clip_max)
static void	lowpass_line_complex_c_16 (uint8_t *dst8, ptrdiff_t linesize, const uint8_t *src8, ptrdiff_t mref, ptrdiff_t pref, int clip_max)
static int	query_formats (AVFilterContext *ctx)
static av_cold void	uninit (AVFilterContext *ctx)
void	ff_interlace_init (InterlaceContext *s, int depth)
static int	config_out_props (AVFilterLink *outlink)
static void	copy_picture_field (InterlaceContext *s, AVFrame *src_frame, AVFrame *dst_frame, AVFilterLink *inlink, enum FieldType field_type, int lowpass)
static int	filter_frame (AVFilterLink *inlink, AVFrame *buf)

Variables
static const AVOption	interlace_options []
static enum AVPixelFormat	formats_supported []
static const AVFilterPad	inputs []
static const AVFilterPad	outputs []
AVFilter	ff_vf_interlace

Detailed Description

progressive to interlaced content filter, inspired by heavy debugging of tinterlace filter

Definition in file vf_interlace.c.

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(InterlaceContext, x)

Definition at line 41 of file vf_interlace.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 42 of file vf_interlace.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

interlace

)

lowpass_line_c()

static void lowpass_line_c ( uint8_t *  dstp, ptrdiff_t  linesize, const uint8_t *  srcp, ptrdiff_t  mref, ptrdiff_t  pref, int  clip_max  )

static

Definition at line 63 of file vf_interlace.c.

Referenced by ff_interlace_init().

lowpass_line_c_16()

static void lowpass_line_c_16 ( uint8_t *  dst8, ptrdiff_t  linesize, const uint8_t *  src8, ptrdiff_t  mref, ptrdiff_t  pref, int  clip_max  )

static

Definition at line 78 of file vf_interlace.c.

Referenced by ff_interlace_init().

lowpass_line_complex_c()

static void lowpass_line_complex_c ( uint8_t *  dstp, ptrdiff_t  linesize, const uint8_t *  srcp, ptrdiff_t  mref, ptrdiff_t  pref, int  clip_max  )

static

Definition at line 97 of file vf_interlace.c.

Referenced by ff_interlace_init().

lowpass_line_complex_c_16()

static void lowpass_line_complex_c_16 ( uint8_t *  dst8, ptrdiff_t  linesize, const uint8_t *  src8, ptrdiff_t  mref, ptrdiff_t  pref, int  clip_max  )

static

Definition at line 125 of file vf_interlace.c.

Referenced by ff_interlace_init().

query_formats()

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 172 of file vf_interlace.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 180 of file vf_interlace.c.

ff_interlace_init()

void ff_interlace_init	(	InterlaceContext *	s,
		int	depth
	)

Definition at line 188 of file vf_interlace.c.

Referenced by config_out_props().

config_out_props()

static int config_out_props ( AVFilterLink *  outlink )

static

Definition at line 207 of file vf_interlace.c.

copy_picture_field()

static void copy_picture_field ( InterlaceContext *  s, AVFrame *  src_frame, AVFrame *  dst_frame, AVFilterLink *  inlink, enum FieldType  field_type, int  lowpass  )

static

Definition at line 240 of file vf_interlace.c.

Referenced by filter_frame().

filter_frame()

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

static

Definition at line 289 of file vf_interlace.c.

Variable Documentation

interlace_options

const AVOption interlace_options[]

static

Initial value:

= {
    { "scan", "scanning mode", OFFSET(scan),
        AV_OPT_TYPE_INT,   {.i64 = MODE_TFF }, 0, 1, .flags = FLAGS, .unit = "scan" },
    { "tff", "top field first", 0,
        AV_OPT_TYPE_CONST, {.i64 = MODE_TFF }, INT_MIN, INT_MAX, .flags = FLAGS, .unit = "scan" },
    { "bff", "bottom field first", 0,
        AV_OPT_TYPE_CONST, {.i64 = MODE_BFF }, INT_MIN, INT_MAX, .flags = FLAGS, .unit = "scan" },
    { "lowpass", "set vertical low-pass filter", OFFSET(lowpass),
        AV_OPT_TYPE_INT,   {.i64 = VLPF_LIN }, 0, 2, .flags = FLAGS, .unit = "lowpass" },
    { "off",     "disable vertical low-pass filter", 0,
        AV_OPT_TYPE_CONST, {.i64 = VLPF_OFF }, INT_MIN, INT_MAX, .flags = FLAGS, .unit = "lowpass" },
    { "linear",  "linear vertical low-pass filter",  0,
        AV_OPT_TYPE_CONST, {.i64 = VLPF_LIN }, INT_MIN, INT_MAX, .flags = FLAGS, .unit = "lowpass" },
    { "complex", "complex vertical low-pass filter", 0,
        AV_OPT_TYPE_CONST, {.i64 = VLPF_CMP }, INT_MIN, INT_MAX, .flags = FLAGS, .unit = "lowpass" },
    { NULL }
}

Definition at line 43 of file vf_interlace.c.

formats_supported

enum AVPixelFormat formats_supported[]

static

Initial value:

= {
    AV_PIX_FMT_YUV410P,      AV_PIX_FMT_YUV411P,
    AV_PIX_FMT_YUV420P,      AV_PIX_FMT_YUV422P,      AV_PIX_FMT_YUV444P,
    AV_PIX_FMT_YUV420P10LE,  AV_PIX_FMT_YUV422P10LE,  AV_PIX_FMT_YUV444P10LE,
    AV_PIX_FMT_YUV420P12LE,  AV_PIX_FMT_YUV422P12LE,  AV_PIX_FMT_YUV444P12LE,
    AV_PIX_FMT_YUVA420P,     AV_PIX_FMT_YUVA422P,     AV_PIX_FMT_YUVA444P,
    AV_PIX_FMT_YUVA420P10LE, AV_PIX_FMT_YUVA422P10LE, AV_PIX_FMT_YUVA444P10LE,
    AV_PIX_FMT_GRAY8,        AV_PIX_FMT_YUVJ420P,     AV_PIX_FMT_YUVJ422P,
    AV_PIX_FMT_YUVJ444P,     AV_PIX_FMT_YUVJ440P,     AV_PIX_FMT_NONE
}

Definition at line 161 of file vf_interlace.c.

Referenced by query_formats().

inputs

const AVFilterPad inputs[]

static

Initial value:

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

Definition at line 339 of file vf_interlace.c.

outputs

const AVFilterPad outputs[]

static

Initial value:

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

Definition at line 348 of file vf_interlace.c.

ff_vf_interlace

AVFilter ff_vf_interlace

Initial value:

= {
    .name          = "interlace",
    .description   = NULL_IF_CONFIG_SMALL("Convert progressive video into interlaced."),
    .uninit        = uninit,
    .priv_class    = &interlace_class,
    .priv_size     = sizeof(InterlaceContext),
    .query_formats = query_formats,
    .inputs        = inputs,
    .outputs       = outputs,
}

Definition at line 357 of file vf_interlace.c.