vf_hwmap.c File Reference

#include "libavutil/buffer.h"
#include "libavutil/hwcontext.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	HWMapContext

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

Functions
static int	hwmap_query_formats (AVFilterContext *avctx)
static int	hwmap_config_output (AVFilterLink *outlink)
static AVFrame *	hwmap_get_buffer (AVFilterLink *inlink, int w, int h)
static int	hwmap_filter_frame (AVFilterLink *link, AVFrame *input)
static av_cold void	hwmap_uninit (AVFilterContext *avctx)
	AVFILTER_DEFINE_CLASS (hwmap)

Variables
static const AVOption	hwmap_options []
static const AVFilterPad	hwmap_inputs []
static const AVFilterPad	hwmap_outputs []
AVFilter	ff_vf_hwmap

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(HWMapContext, x)

Definition at line 370 of file vf_hwmap.c.

FLAGS

#define FLAGS   (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)

Definition at line 371 of file vf_hwmap.c.

Function Documentation

hwmap_query_formats()

static int hwmap_query_formats ( AVFilterContext *  avctx )

static

Definition at line 40 of file vf_hwmap.c.

hwmap_config_output()

static int hwmap_config_output ( AVFilterLink *  outlink )

static

Definition at line 53 of file vf_hwmap.c.

hwmap_get_buffer()

static AVFrame* hwmap_get_buffer ( AVFilterLink *  inlink, int  w, int  h  )

static

Definition at line 264 of file vf_hwmap.c.

hwmap_filter_frame()

static int hwmap_filter_frame ( AVFilterLink *  link, AVFrame *  input  )

static

Definition at line 303 of file vf_hwmap.c.

hwmap_uninit()

static av_cold void hwmap_uninit ( AVFilterContext *  avctx )

static

Definition at line 363 of file vf_hwmap.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

hwmap

)

Variable Documentation

hwmap_options

const AVOption hwmap_options[]

static

Initial value:

= {
    { "mode", "Frame mapping mode",
      OFFSET(mode), AV_OPT_TYPE_FLAGS,
      { .i64 = AV_HWFRAME_MAP_READ | AV_HWFRAME_MAP_WRITE },
      0, INT_MAX, FLAGS, "mode" },
 
    { "read", "Mapping should be readable",
      0, AV_OPT_TYPE_CONST, { .i64 = AV_HWFRAME_MAP_READ },
      INT_MIN, INT_MAX, FLAGS, "mode" },
    { "write", "Mapping should be writeable",
      0, AV_OPT_TYPE_CONST, { .i64 = AV_HWFRAME_MAP_WRITE },
      INT_MIN, INT_MAX, FLAGS, "mode" },
    { "overwrite", "Mapping will always overwrite the entire frame",
      0, AV_OPT_TYPE_CONST, { .i64 = AV_HWFRAME_MAP_OVERWRITE },
      INT_MIN, INT_MAX, FLAGS, "mode" },
    { "direct", "Mapping should not involve any copying",
      0, AV_OPT_TYPE_CONST, { .i64 = AV_HWFRAME_MAP_DIRECT },
      INT_MIN, INT_MAX, FLAGS, "mode" },
 
    { "derive_device", "Derive a new device of this type",
      OFFSET(derive_device_type), AV_OPT_TYPE_STRING,
      { .str = NULL }, 0, 0, FLAGS },
    { "reverse", "Map in reverse (create and allocate in the sink)",
      OFFSET(reverse), AV_OPT_TYPE_INT,
      { .i64 = 0 }, 0, 1, FLAGS },
 
    { NULL }
}

Definition at line 372 of file vf_hwmap.c.

hwmap_inputs

const AVFilterPad hwmap_inputs[]

static

Initial value:

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

Definition at line 403 of file vf_hwmap.c.

hwmap_outputs

const AVFilterPad hwmap_outputs[]

static

Initial value:

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

Definition at line 413 of file vf_hwmap.c.

ff_vf_hwmap

AVFilter ff_vf_hwmap

Initial value:

= {
    .name           = "hwmap",
    .description    = NULL_IF_CONFIG_SMALL("Map hardware frames"),
    .uninit         = hwmap_uninit,
    .priv_size      = sizeof(HWMapContext),
    .priv_class     = &hwmap_class,
    .query_formats  = hwmap_query_formats,
    .inputs         = hwmap_inputs,
    .outputs        = hwmap_outputs,
    .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
}

Definition at line 422 of file vf_hwmap.c.