vf_premultiply.c File Reference

#include "libavutil/imgutils.h"
#include "libavutil/pixdesc.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "formats.h"
#include "framesync.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	PreMultiplyContext

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

Functions
	AVFILTER_DEFINE_CLASS (premultiply)
static int	query_formats (AVFilterContext *ctx)
static void	premultiply8 (const uint8_t *msrc, const uint8_t *asrc, uint8_t *dst, ptrdiff_t mlinesize, ptrdiff_t alinesize, ptrdiff_t dlinesize, int w, int h, int half, int shift, int offset)
static void	premultiply8yuv (const uint8_t *msrc, const uint8_t *asrc, uint8_t *dst, ptrdiff_t mlinesize, ptrdiff_t alinesize, ptrdiff_t dlinesize, int w, int h, int half, int shift, int offset)
static void	premultiply8offset (const uint8_t *msrc, const uint8_t *asrc, uint8_t *dst, ptrdiff_t mlinesize, ptrdiff_t alinesize, ptrdiff_t dlinesize, int w, int h, int half, int shift, int offset)
static void	premultiply16 (const uint8_t *mmsrc, const uint8_t *aasrc, uint8_t *ddst, ptrdiff_t mlinesize, ptrdiff_t alinesize, ptrdiff_t dlinesize, int w, int h, int half, int shift, int offset)
static void	premultiply16yuv (const uint8_t *mmsrc, const uint8_t *aasrc, uint8_t *ddst, ptrdiff_t mlinesize, ptrdiff_t alinesize, ptrdiff_t dlinesize, int w, int h, int half, int shift, int offset)
static void	premultiply16offset (const uint8_t *mmsrc, const uint8_t *aasrc, uint8_t *ddst, ptrdiff_t mlinesize, ptrdiff_t alinesize, ptrdiff_t dlinesize, int w, int h, int half, int shift, int offset)
static int	process_frame (FFFrameSync *fs)
static int	config_input (AVFilterLink *inlink)
static int	config_output (AVFilterLink *outlink)
static int	filter_frame (AVFilterLink *inlink, AVFrame *buf)
static int	request_frame (AVFilterLink *outlink)
static av_cold void	uninit (AVFilterContext *ctx)

Variables
static const AVOption	premultiply_options []
static const AVFilterPad	premultiply_inputs []
static const AVFilterPad	premultiply_outputs []
AVFilter	ff_vf_premultiply

Macro Definition Documentation

#define OFFSET

(

x

)

offsetof(PreMultiplyContext, x)

Definition at line 46 of file vf_premultiply.c.

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 47 of file vf_premultiply.c.

Function Documentation

AVFILTER_DEFINE_CLASS

(

premultiply

)

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 55 of file vf_premultiply.c.

static void premultiply8 ( const uint8_t *  msrc, const uint8_t *  asrc, uint8_t *  dst, ptrdiff_t  mlinesize, ptrdiff_t  alinesize, ptrdiff_t  dlinesize, int  w, int  h, int  half, int  shift, int  offset  )

static

Definition at line 71 of file vf_premultiply.c.

Referenced by process_frame().

static void premultiply8yuv ( const uint8_t *  msrc, const uint8_t *  asrc, uint8_t *  dst, ptrdiff_t  mlinesize, ptrdiff_t  alinesize, ptrdiff_t  dlinesize, int  w, int  h, int  half, int  shift, int  offset  )

static

Definition at line 91 of file vf_premultiply.c.

Referenced by process_frame().

static void premultiply8offset ( const uint8_t *  msrc, const uint8_t *  asrc, uint8_t *  dst, ptrdiff_t  mlinesize, ptrdiff_t  alinesize, ptrdiff_t  dlinesize, int  w, int  h, int  half, int  shift, int  offset  )

static

Definition at line 111 of file vf_premultiply.c.

Referenced by process_frame().

static void premultiply16 ( const uint8_t *  mmsrc, const uint8_t *  aasrc, uint8_t *  ddst, ptrdiff_t  mlinesize, ptrdiff_t  alinesize, ptrdiff_t  dlinesize, int  w, int  h, int  half, int  shift, int  offset  )

static

Definition at line 131 of file vf_premultiply.c.

Referenced by process_frame().

static void premultiply16yuv ( const uint8_t *  mmsrc, const uint8_t *  aasrc, uint8_t *  ddst, ptrdiff_t  mlinesize, ptrdiff_t  alinesize, ptrdiff_t  dlinesize, int  w, int  h, int  half, int  shift, int  offset  )

static

Definition at line 154 of file vf_premultiply.c.

Referenced by process_frame().

static void premultiply16offset ( const uint8_t *  mmsrc, const uint8_t *  aasrc, uint8_t *  ddst, ptrdiff_t  mlinesize, ptrdiff_t  alinesize, ptrdiff_t  dlinesize, int  w, int  h, int  half, int  shift, int  offset  )

static

Definition at line 177 of file vf_premultiply.c.

Referenced by process_frame().

static int process_frame ( FFFrameSync *  fs )

static

Definition at line 200 of file vf_premultiply.c.

Referenced by config_output().

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 285 of file vf_premultiply.c.

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 308 of file vf_premultiply.c.

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

static

Definition at line 355 of file vf_premultiply.c.

static int request_frame ( AVFilterLink *  outlink )

static

Definition at line 361 of file vf_premultiply.c.

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 367 of file vf_premultiply.c.

Variable Documentation

const AVOption premultiply_options[]

static

Initial value:

= {
    { NULL }
}

Definition at line 49 of file vf_premultiply.c.

const AVFilterPad premultiply_inputs[]

static

Initial value:

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

Definition at line 374 of file vf_premultiply.c.

const AVFilterPad premultiply_outputs[]

static

Initial value:

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

Definition at line 389 of file vf_premultiply.c.

AVFilter ff_vf_premultiply

Initial value:

= {
    .name          = "premultiply",
    .description   = NULL_IF_CONFIG_SMALL("PreMultiply first stream with first plane of second stream."),
    .priv_size     = sizeof(PreMultiplyContext),
    .uninit        = uninit,
    .query_formats = query_formats,
    .inputs        = premultiply_inputs,
    .outputs       = premultiply_outputs,
    .priv_class    = &premultiply_class,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
}

Definition at line 399 of file vf_premultiply.c.