vf_scale_vt.c File Reference

#include <VideoToolbox/VideoToolbox.h>
#include "libavutil/hwcontext.h"
#include "libavutil/hwcontext_videotoolbox.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "filters.h"
#include "scale_eval.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	ScaleVtContext

Macros
#define	STRING_OPTION(var_name, func_name, default_value)
#define	OFFSET(x)
#define	FLAGS   (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)

Functions
static av_cold int	scale_vt_init (AVFilterContext *avctx)
static av_cold void	scale_vt_uninit (AVFilterContext *avctx)
static int	scale_vt_filter_frame (AVFilterLink *link, AVFrame *in)
static int	scale_vt_config_output (AVFilterLink *outlink)
	AVFILTER_DEFINE_CLASS (scale_vt)

Variables
static const AVOption	scale_vt_options []
static const AVFilterPad	scale_vt_inputs []
static const AVFilterPad	scale_vt_outputs []
const FFFilter	ff_vf_scale_vt

Macro Definition Documentation

STRING_OPTION

#define STRING_OPTION	(		var_name,
			func_name,
			default_value )

Value:

    do {                                                                 \
        if (s->var_name##_string) {                                      \
            int var = av_##func_name##_from_name(s->var_name##_string);  \
            if (var < 0) {                                               \
                av_log(avctx, AV_LOG_ERROR, "Invalid %s.\n", #var_name); \
                return AVERROR(EINVAL);                                  \
            }                                                            \
            s->var_name = var;                                           \
        } else {                                                         \
            s->var_name = default_value;                                 \
        }                                                                \
    } while (0)

Referenced by scale_vt_init().

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(ScaleVtContext, x)

Definition at line 292 of file vf_scale_vt.c.

FLAGS

#define FLAGS   (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)

Definition at line 293 of file vf_scale_vt.c.

Function Documentation

scale_vt_init()

static av_cold int scale_vt_init ( AVFilterContext * avctx )

static

Definition at line 49 of file vf_scale_vt.c.

scale_vt_uninit()

static av_cold void scale_vt_uninit ( AVFilterContext * avctx )

static

Definition at line 117 of file vf_scale_vt.c.

scale_vt_filter_frame()

static int scale_vt_filter_frame ( AVFilterLink * link, AVFrame * in )

static

Definition at line 128 of file vf_scale_vt.c.

scale_vt_config_output()

static int scale_vt_config_output ( AVFilterLink * outlink )

static

Definition at line 234 of file vf_scale_vt.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

scale_vt

)

Variable Documentation

scale_vt_options

const AVOption scale_vt_options[]

static

Initial value:

= {
    { "w", "Output video width",
            OFFSET(w_expr), AV_OPT_TYPE_STRING, {.str = "iw"}, .flags = FLAGS },
    { "h", "Output video height",
            OFFSET(h_expr), AV_OPT_TYPE_STRING, {.str = "ih"}, .flags = FLAGS },
    { "color_matrix", "Output colour matrix coefficient set",
            OFFSET(colour_matrix_string), AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
    { "color_primaries", "Output colour primaries",
            OFFSET(colour_primaries_string), AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
    { "color_transfer", "Output colour transfer characteristics",
            OFFSET(colour_transfer_string),  AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
    { NULL },
}

Definition at line 294 of file vf_scale_vt.c.

scale_vt_inputs

const AVFilterPad scale_vt_inputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .filter_frame = &scale_vt_filter_frame,
    },
}

Definition at line 310 of file vf_scale_vt.c.

scale_vt_outputs

const AVFilterPad scale_vt_outputs[]

static

Initial value:

= {
    {
        .name = "default",
        .type = AVMEDIA_TYPE_VIDEO,
        .config_props = &scale_vt_config_output,
    },
}

Definition at line 318 of file vf_scale_vt.c.

ff_vf_scale_vt

const FFFilter ff_vf_scale_vt

Initial value:

= {
    .p.name         = "scale_vt",
    .p.description  = NULL_IF_CONFIG_SMALL("Scale Videotoolbox frames"),
    .p.priv_class   = &scale_vt_class,
    .p.flags        = AVFILTER_FLAG_HWDEVICE,
    .priv_size      = sizeof(ScaleVtContext),
    .init           = scale_vt_init,
    .uninit         = scale_vt_uninit,
    FILTER_INPUTS(scale_vt_inputs),
    FILTER_OUTPUTS(scale_vt_outputs),
    FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VIDEOTOOLBOX),
    .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
}

Definition at line 326 of file vf_scale_vt.c.