vf_tinterlace.c File Reference

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

#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/imgutils.h"
#include "libavutil/avassert.h"
#include "avfilter.h"
#include "filters.h"
#include "tinterlace.h"
#include "video.h"

Go to the source code of this file.

Macros
#define	OFFSET(x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
#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)
	AVFILTER_DEFINE_CLASS (interlace)
static void	lowpass_line_c (uint8_t *dstp, ptrdiff_t width, const uint8_t *srcp, ptrdiff_t mref, ptrdiff_t pref, int clip_max)
static void	lowpass_line_c_16 (uint8_t *dst8, ptrdiff_t width, const uint8_t *src8, ptrdiff_t mref, ptrdiff_t pref, int clip_max)
static void	lowpass_line_complex_c (uint8_t *dstp, ptrdiff_t width, 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 width, const uint8_t *src8, ptrdiff_t mref, ptrdiff_t pref, int clip_max)
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)
static int	init_interlace (AVFilterContext *ctx)

Variables
static const AVOption	tinterlace_options []
static const AVOption	interlace_options []
static enum AVPixelFormat	full_scale_yuvj_pix_fmts []
static const AVRational	standard_tbs []
static enum AVPixelFormat	pix_fmts []
static const AVFilterPad	tinterlace_inputs []
static const AVFilterPad	tinterlace_outputs []
const FFFilter	ff_vf_tinterlace
const FFFilter	ff_vf_interlace

Detailed Description

temporal field interlace filter, ported from MPlayer/libmpcodecs

Definition in file vf_tinterlace.c.

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(TInterlaceContext, x)

Definition at line 38 of file vf_tinterlace.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 39 of file vf_tinterlace.c.

FULL_SCALE_YUVJ_FORMATS

#define FULL_SCALE_YUVJ_FORMATS    AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P

Definition at line 79 of file vf_tinterlace.c.

FIELD_UPPER

#define FIELD_UPPER   0

Definition at line 316 of file vf_tinterlace.c.

Referenced by copy_picture_field(), and filter_frame().

FIELD_LOWER

#define FIELD_LOWER   1

Definition at line 317 of file vf_tinterlace.c.

Referenced by copy_picture_field(), and filter_frame().

FIELD_UPPER_AND_LOWER

#define FIELD_UPPER_AND_LOWER   2

Definition at line 318 of file vf_tinterlace.c.

Referenced by copy_picture_field(), and filter_frame().

Function Documentation

AVFILTER_DEFINE_CLASS() [1/2]

AVFILTER_DEFINE_CLASS

(

tinterlace

)

AVFILTER_DEFINE_CLASS() [2/2]

AVFILTER_DEFINE_CLASS

(

interlace

)

lowpass_line_c()

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

static

Definition at line 106 of file vf_tinterlace.c.

Referenced by config_out_props().

lowpass_line_c_16()

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

static

Definition at line 120 of file vf_tinterlace.c.

Referenced by config_out_props().

lowpass_line_complex_c()

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

static

Definition at line 138 of file vf_tinterlace.c.

Referenced by config_out_props().

lowpass_line_complex_c_16()

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

static

Definition at line 165 of file vf_tinterlace.c.

Referenced by config_out_props().

uninit()

static av_cold void uninit ( AVFilterContext * ctx )

static

Definition at line 200 of file vf_tinterlace.c.

config_out_props()

static int config_out_props ( AVFilterLink * outlink )

static

Definition at line 211 of file vf_tinterlace.c.

copy_picture_field()

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 330 of file vf_tinterlace.c.

Referenced by filter_frame().

filter_frame()

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

static

Definition at line 380 of file vf_tinterlace.c.

init_interlace()

static int init_interlace ( AVFilterContext * ctx )

static

Definition at line 555 of file vf_tinterlace.c.

Variable Documentation

tinterlace_options

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, .unit = "mode"},
    {"merge",             "merge fields",                                 0, AV_OPT_TYPE_CONST, {.i64=MODE_MERGE},             INT_MIN, INT_MAX, FLAGS, .unit = "mode"},
    {"drop_even",         "drop even fields",                             0, AV_OPT_TYPE_CONST, {.i64=MODE_DROP_EVEN},         INT_MIN, INT_MAX, FLAGS, .unit = "mode"},
    {"drop_odd",          "drop odd fields",                              0, AV_OPT_TYPE_CONST, {.i64=MODE_DROP_ODD},          INT_MIN, INT_MAX, FLAGS, .unit = "mode"},
    {"pad",               "pad alternate lines with black",               0, AV_OPT_TYPE_CONST, {.i64=MODE_PAD},               INT_MIN, INT_MAX, FLAGS, .unit = "mode"},
    {"interleave_top",    "interleave top and bottom fields",             0, AV_OPT_TYPE_CONST, {.i64=MODE_INTERLEAVE_TOP},    INT_MIN, INT_MAX, FLAGS, .unit = "mode"},
    {"interleave_bottom", "interleave bottom and top fields",             0, AV_OPT_TYPE_CONST, {.i64=MODE_INTERLEAVE_BOTTOM}, INT_MIN, INT_MAX, FLAGS, .unit = "mode"},
    {"interlacex2",       "interlace fields from two consecutive frames", 0, AV_OPT_TYPE_CONST, {.i64=MODE_INTERLACEX2},       INT_MIN, INT_MAX, FLAGS, .unit = "mode"},
    {"mergex2",           "merge fields keeping same frame rate",         0, AV_OPT_TYPE_CONST, {.i64=MODE_MERGEX2},           INT_MIN, INT_MAX, FLAGS, .unit = "mode"},
 
    {"flags",             "set flags", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, INT_MAX, 0, .unit = "flags" },
    {"low_pass_filter",   "enable vertical low-pass filter",              0, AV_OPT_TYPE_CONST, {.i64 = TINTERLACE_FLAG_VLPF}, INT_MIN, INT_MAX, FLAGS, .unit = "flags" },
    {"vlpf",              "enable vertical low-pass filter",              0, AV_OPT_TYPE_CONST, {.i64 = TINTERLACE_FLAG_VLPF}, INT_MIN, INT_MAX, FLAGS, .unit = "flags" },
    {"complex_filter",    "enable complex vertical low-pass filter",      0, AV_OPT_TYPE_CONST, {.i64 = TINTERLACE_FLAG_CVLPF},INT_MIN, INT_MAX, FLAGS, .unit = "flags" },
    {"cvlpf",             "enable complex vertical low-pass filter",      0, AV_OPT_TYPE_CONST, {.i64 = TINTERLACE_FLAG_CVLPF},INT_MIN, INT_MAX, FLAGS, .unit = "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, .unit = "flags" },
    {"bypass_il",         "bypass already interlaced frames",             0, AV_OPT_TYPE_CONST, {.i64 = TINTERLACE_FLAG_BYPASS_IL}, INT_MIN, INT_MAX, FLAGS, .unit = "flags" },
 
    {NULL}
}

Definition at line 41 of file vf_tinterlace.c.

interlace_options

const AVOption interlace_options[]

static

Initial value:

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

Definition at line 65 of file vf_tinterlace.c.

full_scale_yuvj_pix_fmts

enum AVPixelFormat full_scale_yuvj_pix_fmts[]

static

Initial value:

= {
    FULL_SCALE_YUVJ_FORMATS, AV_PIX_FMT_NONE
}

Definition at line 82 of file vf_tinterlace.c.

Referenced by config_out_props(), and filter_frame().

standard_tbs

const AVRational standard_tbs[]

static

Initial value:

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

Definition at line 86 of file vf_tinterlace.c.

Referenced by config_out_props().

pix_fmts

enum AVPixelFormat pix_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
    AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
    AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
    AV_PIX_FMT_YUV420P10LE, AV_PIX_FMT_YUV422P10LE,
    AV_PIX_FMT_YUV440P10LE, AV_PIX_FMT_YUV444P10LE,
    AV_PIX_FMT_YUV420P12LE, AV_PIX_FMT_YUV422P12LE,
    AV_PIX_FMT_YUV440P12LE, 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, FULL_SCALE_YUVJ_FORMATS,
    AV_PIX_FMT_NONE
}

Definition at line 92 of file vf_tinterlace.c.

tinterlace_inputs

const AVFilterPad tinterlace_inputs[]

static

Initial value:

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

Definition at line 571 of file vf_tinterlace.c.

tinterlace_outputs

const AVFilterPad tinterlace_outputs[]

static

Initial value:

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

Definition at line 579 of file vf_tinterlace.c.

ff_vf_tinterlace

const FFFilter ff_vf_tinterlace

Initial value:

= {
    .p.name        = "tinterlace",
    .p.description = NULL_IF_CONFIG_SMALL("Perform temporal field interlacing."),
    .p.priv_class  = &tinterlace_class,
    .priv_size     = sizeof(TInterlaceContext),
    .uninit        = uninit,
    FILTER_INPUTS(tinterlace_inputs),
    FILTER_OUTPUTS(tinterlace_outputs),
    FILTER_PIXFMTS_ARRAY(pix_fmts),
}

Definition at line 587 of file vf_tinterlace.c.

ff_vf_interlace

const FFFilter ff_vf_interlace

Initial value:

= {
    .p.name        = "interlace",
    .p.description = NULL_IF_CONFIG_SMALL("Convert progressive video into interlaced."),
    .p.priv_class  = &interlace_class,
    .priv_size     = sizeof(TInterlaceContext),
    .init          = init_interlace,
    .uninit        = uninit,
    FILTER_INPUTS(tinterlace_inputs),
    FILTER_OUTPUTS(tinterlace_outputs),
    FILTER_PIXFMTS_ARRAY(pix_fmts),
}

Definition at line 599 of file vf_tinterlace.c.