libavfilter/vf_tinterlace.c File Reference

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

#include "libavutil/imgutils.h"
#include "avfilter.h"
#include "internal.h"

Go to the source code of this file.

Data Structures
struct	TInterlaceContext
Defines
#define	FULL_SCALE_YUVJ_FORMATS   PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUVJ440P
#define	FIELD_UPPER   0
#define	FIELD_LOWER   1
#define	FIELD_UPPER_AND_LOWER   2
Functions
static int	query_formats (AVFilterContext *ctx)
static av_cold int	init (AVFilterContext *ctx, const char *args, void *opaque)
static av_cold void	uninit (AVFilterContext *ctx)
static int	config_out_props (AVFilterLink *outlink)
static void	copy_picture_field (uint8_t *dst[4], int dst_linesize[4], uint8_t *src[4], int src_linesize[4], enum PixelFormat format, int w, int src_h, int src_field, int interleave, int dst_field)
	Copy picture field from src to dst.
static void	start_frame (AVFilterLink *inlink, AVFilterBufferRef *picref)
static void	end_frame (AVFilterLink *inlink)
static int	poll_frame (AVFilterLink *outlink)
static int	request_frame (AVFilterLink *outlink)
static void	null_draw_slice (AVFilterLink *link, int y, int h, int slice_dir)
Variables
static enum PixelFormat	full_scale_yuvj_pix_fmts []
AVFilter	avfilter_vf_tinterlace

---

Detailed Description

temporal field interlace filter, ported from MPlayer/libmpcodecs

Definition in file vf_tinterlace.c.

---

Define Documentation

#define FIELD_LOWER   1

Definition at line 127 of file vf_tinterlace.c.

Referenced by copy_picture_field(), and end_frame().

#define FIELD_UPPER   0

Definition at line 126 of file vf_tinterlace.c.

Referenced by end_frame().

#define FIELD_UPPER_AND_LOWER   2

Definition at line 128 of file vf_tinterlace.c.

Referenced by copy_picture_field(), and end_frame().

#define FULL_SCALE_YUVJ_FORMATS   PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUVJ440P

Definition at line 42 of file vf_tinterlace.c.

Referenced by query_formats().

---

Function Documentation

static int config_out_props

(

AVFilterLink *

outlink

)

[static]

Definition at line 91 of file vf_tinterlace.c.

static void copy_picture_field	(	uint8_t *	dst[4],
		int	dst_linesize[4],
		uint8_t *	src[4],
		int	src_linesize[4],
		enum PixelFormat	format,
		int	w,
		int	src_h,
		int	src_field,
		int	interleave,
		int	dst_field
	)			[inline, static]

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 field
	dst_field	copy to upper or lower field, only meaningful when interleave is selected

Definition at line 139 of file vf_tinterlace.c.

Referenced by end_frame().

static void end_frame

(

AVFilterLink *

inlink

)

[static]

Definition at line 174 of file vf_tinterlace.c.

static av_cold int init	(	AVFilterContext *	ctx,
		const char *	args,
		void *	opaque
	)			[static]

Definition at line 62 of file vf_tinterlace.c.

static void null_draw_slice	(	AVFilterLink *	link,
		int	y,
		int	h,
		int	slice_dir
	)			[static]

Definition at line 302 of file vf_tinterlace.c.

static int poll_frame

(

AVFilterLink *

outlink

)

[static]

Definition at line 269 of file vf_tinterlace.c.

static int query_formats

(

AVFilterContext *

ctx

)

[static]

Definition at line 49 of file vf_tinterlace.c.

static int request_frame

(

AVFilterLink *

outlink

)

[static]

Definition at line 287 of file vf_tinterlace.c.

static void start_frame	(	AVFilterLink *	inlink,
		AVFilterBufferRef *	picref
	)			[static]

Definition at line 163 of file vf_tinterlace.c.

static av_cold void uninit

(

AVFilterContext *

ctx

)

[static]

Definition at line 81 of file vf_tinterlace.c.

---

Variable Documentation

AVFilter avfilter_vf_tinterlace

Initial value:

 {
    .name          = "tinterlace",
    .description   = NULL_IF_CONFIG_SMALL("Perform temporal field interlacing."),
    .priv_size     = sizeof(TInterlaceContext),
    .init          = init,
    .uninit        = uninit,
    .query_formats = query_formats,

    .inputs = (const AVFilterPad[]) {
        { .name          = "default",
          .type          = AVMEDIA_TYPE_VIDEO,
          .start_frame   = start_frame,
          .draw_slice    = null_draw_slice,
          .end_frame     = end_frame, },
        { .name = NULL}
    },
    .outputs = (const AVFilterPad[]) {
        { .name          = "default",
          .type          = AVMEDIA_TYPE_VIDEO,
          .config_props  = config_out_props,
          .poll_frame    = poll_frame,
          .request_frame = request_frame },
        { .name = NULL}
    },
}

Definition at line 304 of file vf_tinterlace.c.

enum PixelFormat full_scale_yuvj_pix_fmts[] [static]

Initial value:

 {
    FULL_SCALE_YUVJ_FORMATS, PIX_FMT_NONE
}

Definition at line 45 of file vf_tinterlace.c.

Referenced by config_out_props().