vf_scale_d3d11.c File Reference

#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "compat/w32dlfcn.h"
#include <initguid.h>
#include "libavutil/hwcontext.h"
#include "libavutil/hwcontext_d3d11va.h"
#include "filters.h"
#include "scale_eval.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	ScaleD3D11Context

Macros
#define	OFFSET(x)
#define	FLAGS   (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)

Functions
static av_cold int	scale_d3d11_init (AVFilterContext *ctx)
static void	release_d3d11_resources (ScaleD3D11Context *s)
static int	scale_d3d11_configure_processor (ScaleD3D11Context *s, AVFilterContext *ctx)
static int	scale_d3d11_filter_frame (AVFilterLink *inlink, AVFrame *in)
static int	scale_d3d11_config_props (AVFilterLink *outlink)
static av_cold void	scale_d3d11_uninit (AVFilterContext *ctx)
	AVFILTER_DEFINE_CLASS (scale_d3d11)

Variables
static const AVFilterPad	scale_d3d11_inputs []
static const AVFilterPad	scale_d3d11_outputs []
static const AVOption	scale_d3d11_options []
const FFFilter	ff_vf_scale_d3d11

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(ScaleD3D11Context, x)

Definition at line 432 of file vf_scale_d3d11.c.

FLAGS

#define FLAGS   (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)

Definition at line 433 of file vf_scale_d3d11.c.

Function Documentation

scale_d3d11_init()

static av_cold int scale_d3d11_init ( AVFilterContext * ctx )

static

< all real work is done in config_props and filter_frame

Definition at line 62 of file vf_scale_d3d11.c.

release_d3d11_resources()

static void release_d3d11_resources ( ScaleD3D11Context * s )

static

Definition at line 67 of file vf_scale_d3d11.c.

Referenced by scale_d3d11_config_props(), and scale_d3d11_uninit().

scale_d3d11_configure_processor()

static int scale_d3d11_configure_processor ( ScaleD3D11Context * s, AVFilterContext * ctx )

static

< Define the video processor content description

< Query video device interface

Definition at line 89 of file vf_scale_d3d11.c.

Referenced by scale_d3d11_filter_frame().

scale_d3d11_filter_frame()

static int scale_d3d11_filter_frame ( AVFilterLink * inlink, AVFrame * in )

static

< Validate input frame

< Get info from input texture

< Get video context

< Clean up resources

< Forward the frame

Definition at line 148 of file vf_scale_d3d11.c.

scale_d3d11_config_props()

static int scale_d3d11_config_props ( AVFilterLink * outlink )

static

< Clean up any previous resources

< Evaluate output dimensions

< Validate input hw_frames_ctx

Definition at line 316 of file vf_scale_d3d11.c.

scale_d3d11_uninit()

static av_cold void scale_d3d11_uninit ( AVFilterContext * ctx )

static

< Release D3D11 resources

< Free the hardware device context reference

< Free option strings

Definition at line 401 of file vf_scale_d3d11.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

scale_d3d11

)

Variable Documentation

scale_d3d11_inputs

const AVFilterPad scale_d3d11_inputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .filter_frame = scale_d3d11_filter_frame,
    },
}

Definition at line 416 of file vf_scale_d3d11.c.

scale_d3d11_outputs

const AVFilterPad scale_d3d11_outputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .config_props = scale_d3d11_config_props,
    },
}

Definition at line 424 of file vf_scale_d3d11.c.

scale_d3d11_options

const AVOption scale_d3d11_options[]

static

Initial value:

= {
    { "width",  "Output video width",  OFFSET(w_expr), AV_OPT_TYPE_STRING, {.str = "iw"}, .flags = FLAGS },
    { "height", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, {.str = "ih"}, .flags = FLAGS },
    { "format", "Output video pixel format", OFFSET(format), AV_OPT_TYPE_PIXEL_FMT, { .i64 = AV_PIX_FMT_NONE }, INT_MIN, INT_MAX, .flags=FLAGS },
    { NULL }
}

Definition at line 435 of file vf_scale_d3d11.c.

ff_vf_scale_d3d11

const FFFilter ff_vf_scale_d3d11

Initial value:

= {
    .p.name           = "scale_d3d11",
    .p.description    = NULL_IF_CONFIG_SMALL("Scale video using Direct3D11"),
    .priv_size        = sizeof(ScaleD3D11Context),
    .p.priv_class     = &scale_d3d11_class,
    .init             = scale_d3d11_init,
    .uninit           = scale_d3d11_uninit,
    FILTER_INPUTS(scale_d3d11_inputs),
    FILTER_OUTPUTS(scale_d3d11_outputs),
    FILTER_SINGLE_PIXFMT(AV_PIX_FMT_D3D11),
    .p.flags          = AVFILTER_FLAG_HWDEVICE,
    .flags_internal   = FF_FILTER_FLAG_HWFRAME_AWARE,
}

Definition at line 444 of file vf_scale_d3d11.c.