vf_blackdetect_vulkan.c File Reference

#include <float.h>
#include "libavutil/vulkan_spirv.h"
#include "libavutil/opt.h"
#include "libavutil/timestamp.h"
#include "vulkan_filter.h"
#include "filters.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	BlackDetectVulkanContext
struct	BlackDetectPushData
struct	BlackDetectBuf

Macros
#define	SLICES   16
#define	OFFSET(x)   offsetof(BlackDetectVulkanContext, x)
#define	FLAGS   (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)

Functions
static av_cold int	init_filter (AVFilterContext *ctx)
static void	report_black_region (AVFilterContext *ctx, int64_t black_end)
static void	evaluate (AVFilterLink *link, AVFrame *in, const BlackDetectBuf *sum)
static int	blackdetect_vulkan_filter_frame (AVFilterLink *link, AVFrame *in)
static void	blackdetect_vulkan_uninit (AVFilterContext *avctx)
static int	config_output (AVFilterLink *outlink)
	AVFILTER_DEFINE_CLASS (blackdetect_vulkan)

Variables
static const AVOption	blackdetect_vulkan_options []
static const AVFilterPad	blackdetect_vulkan_inputs []
static const AVFilterPad	blackdetect_vulkan_outputs []
const FFFilter	ff_vf_blackdetect_vulkan

Macro Definition Documentation

SLICES

#define SLICES   16

Definition at line 52 of file vf_blackdetect_vulkan.c.

OFFSET

#define OFFSET

(

x

)

offsetof(BlackDetectVulkanContext, x)

Definition at line 401 of file vf_blackdetect_vulkan.c.

FLAGS

#define FLAGS   (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)

Definition at line 402 of file vf_blackdetect_vulkan.c.

Function Documentation

init_filter()

static av_cold int init_filter ( AVFilterContext *  ctx )

static

Definition at line 56 of file vf_blackdetect_vulkan.c.

Referenced by blackdetect_vulkan_filter_frame().

report_black_region()

static void report_black_region ( AVFilterContext *  ctx, int64_t  black_end  )

static

Definition at line 159 of file vf_blackdetect_vulkan.c.

Referenced by blackdetect_vulkan_uninit(), and evaluate().

evaluate()

static void evaluate ( AVFilterLink *  link, AVFrame *  in, const BlackDetectBuf *  sum  )

static

Definition at line 175 of file vf_blackdetect_vulkan.c.

blackdetect_vulkan_filter_frame()

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

static

Definition at line 209 of file vf_blackdetect_vulkan.c.

blackdetect_vulkan_uninit()

static void blackdetect_vulkan_uninit ( AVFilterContext *  avctx )

static

Definition at line 359 of file vf_blackdetect_vulkan.c.

config_output()

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 378 of file vf_blackdetect_vulkan.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

blackdetect_vulkan

)

Variable Documentation

blackdetect_vulkan_options

const AVOption blackdetect_vulkan_options[]

static

Initial value:

= {
    { "d",                  "set minimum detected black duration in seconds", OFFSET(black_min_duration_time), AV_OPT_TYPE_DOUBLE, {.dbl=2}, 0, DBL_MAX, FLAGS },
    { "black_min_duration", "set minimum detected black duration in seconds", OFFSET(black_min_duration_time), AV_OPT_TYPE_DOUBLE, {.dbl=2}, 0, DBL_MAX, FLAGS },
    { "picture_black_ratio_th", "set the picture black ratio threshold", OFFSET(picture_black_ratio_th), AV_OPT_TYPE_DOUBLE, {.dbl=.98}, 0, 1, FLAGS },
    { "pic_th",                 "set the picture black ratio threshold", OFFSET(picture_black_ratio_th), AV_OPT_TYPE_DOUBLE, {.dbl=.98}, 0, 1, FLAGS },
    { "pixel_black_th", "set the pixel black threshold", OFFSET(pixel_black_th), AV_OPT_TYPE_DOUBLE, {.dbl=.10}, 0, 1, FLAGS },
    { "pix_th",         "set the pixel black threshold", OFFSET(pixel_black_th), AV_OPT_TYPE_DOUBLE, {.dbl=.10}, 0, 1, FLAGS },
    { "alpha",          "check alpha instead of luma", OFFSET(alpha), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
    { NULL }
}

Definition at line 403 of file vf_blackdetect_vulkan.c.

blackdetect_vulkan_inputs

const AVFilterPad blackdetect_vulkan_inputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .filter_frame = &blackdetect_vulkan_filter_frame,
        .config_props = &ff_vk_filter_config_input,
    },
}

Definition at line 416 of file vf_blackdetect_vulkan.c.

blackdetect_vulkan_outputs

const AVFilterPad blackdetect_vulkan_outputs[]

static

Initial value:

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

Definition at line 425 of file vf_blackdetect_vulkan.c.

ff_vf_blackdetect_vulkan

const FFFilter ff_vf_blackdetect_vulkan

Initial value:

= {
    .p.name         = "blackdetect_vulkan",
    .p.description  = NULL_IF_CONFIG_SMALL("Detect video intervals that are (almost) black."),
    .p.priv_class   = &blackdetect_vulkan_class,
    .p.flags        = AVFILTER_FLAG_HWDEVICE,
    .priv_size      = sizeof(BlackDetectVulkanContext),
    .init           = &ff_vk_filter_init,
    .uninit         = &blackdetect_vulkan_uninit,
    FILTER_INPUTS(blackdetect_vulkan_inputs),
    FILTER_OUTPUTS(blackdetect_vulkan_outputs),
    FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VULKAN),
    .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
}

Definition at line 433 of file vf_blackdetect_vulkan.c.