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 "filters.h"
#include "formats.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	HWMapContext

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

Functions
static int	hwmap_query_formats (const AVFilterContext *avctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
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 []
const FFFilter	ff_vf_hwmap

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(HWMapContext, x)

Definition at line 375 of file vf_hwmap.c.

FLAGS

#define FLAGS   (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)

Definition at line 376 of file vf_hwmap.c.

Function Documentation

hwmap_query_formats()

static int hwmap_query_formats ( const AVFilterContext * avctx, AVFilterFormatsConfig ** cfg_in, AVFilterFormatsConfig ** cfg_out )

static

Definition at line 40 of file vf_hwmap.c.

hwmap_config_output()

static int hwmap_config_output ( AVFilterLink * outlink )

static

Definition at line 55 of file vf_hwmap.c.

hwmap_get_buffer()

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

static

Definition at line 268 of file vf_hwmap.c.

hwmap_filter_frame()

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

static

Definition at line 308 of file vf_hwmap.c.

hwmap_uninit()

static av_cold void hwmap_uninit ( AVFilterContext * avctx )

static

Definition at line 368 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, .unit = "mode" },
 
    { "read", "Mapping should be readable",
      0, AV_OPT_TYPE_CONST, { .i64 = AV_HWFRAME_MAP_READ },
      INT_MIN, INT_MAX, FLAGS, .unit = "mode" },
    { "write", "Mapping should be writeable",
      0, AV_OPT_TYPE_CONST, { .i64 = AV_HWFRAME_MAP_WRITE },
      INT_MIN, INT_MAX, FLAGS, .unit = "mode" },
    { "overwrite", "Mapping will always overwrite the entire frame",
      0, AV_OPT_TYPE_CONST, { .i64 = AV_HWFRAME_MAP_OVERWRITE },
      INT_MIN, INT_MAX, FLAGS, .unit = "mode" },
    { "direct", "Mapping should not involve any copying",
      0, AV_OPT_TYPE_CONST, { .i64 = AV_HWFRAME_MAP_DIRECT },
      INT_MIN, INT_MAX, FLAGS, .unit = "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 377 of file vf_hwmap.c.

hwmap_inputs

const AVFilterPad hwmap_inputs[]

static

Initial value:

= {
    {
        .name             = "default",
        .type             = AVMEDIA_TYPE_VIDEO,
        .get_buffer.video = hwmap_get_buffer,
        .filter_frame     = hwmap_filter_frame,
    },
}

Definition at line 408 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,
    },
}

Definition at line 417 of file vf_hwmap.c.

ff_vf_hwmap

const FFFilter ff_vf_hwmap

Initial value:

= {
    .p.name         = "hwmap",
    .p.description  = NULL_IF_CONFIG_SMALL("Map hardware frames"),
    .p.priv_class   = &hwmap_class,
    .p.flags        = AVFILTER_FLAG_HWDEVICE,
    .uninit         = hwmap_uninit,
    .priv_size      = sizeof(HWMapContext),
    FILTER_INPUTS(hwmap_inputs),
    FILTER_OUTPUTS(hwmap_outputs),
    FILTER_QUERY_FUNC2(hwmap_query_formats),
    .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
}

Definition at line 425 of file vf_hwmap.c.