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Video black detector, loosely based on blackframe with extended syntax and features
Definition in file vf_blackdetect.c.
◆ OFFSET
◆ FLAGS
◆ YUVJ_FORMATS
◆ AVFILTER_DEFINE_CLASS()
AVFILTER_DEFINE_CLASS |
( |
blackdetect |
| ) |
|
◆ config_input()
◆ check_black_end()
◆ black_counter()
◆ filter_frame()
◆ uninit()
◆ blackdetect_options
Initial value:= {
{
"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 },
}
Definition at line 57 of file vf_blackdetect.c.
◆ yuvj_formats
◆ pix_fmts
◆ blackdetect_inputs
◆ blackdetect_outputs
◆ ff_vf_blackdetect
Initial value:= {
.name = "blackdetect",
.priv_class = &blackdetect_class,
}
Definition at line 251 of file vf_blackdetect.c.
#define AV_PIX_FMT_YUVA422P16
#define FILTER_PIXFMTS_ARRAY(array)
#define AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUV420P10
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
#define AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV422P16
static const AVFilterPad blackdetect_inputs[]
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
#define AV_PIX_FMT_YUV444P16
static av_cold void uninit(AVFilterContext *ctx)
static int config_input(AVFilterLink *inlink)
#define AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_GRAY14
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
#define FILTER_INPUTS(array)
#define AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_YUV440P10
#define AV_PIX_FMT_YUV422P10
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
#define AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV444P12
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
#define AV_PIX_FMT_YUVA444P10
@ AV_PIX_FMT_NV21
as above, but U and V bytes are swapped
#define AV_PIX_FMT_YUV444P9
@ AV_PIX_FMT_NV12
planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (firs...
#define AV_PIX_FMT_YUVA444P9
static const AVFilterPad blackdetect_outputs[]
#define AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUVA422P12
#define AVFILTER_FLAG_METADATA_ONLY
The filter is a "metadata" filter - it does not modify the frame data in any way.
static enum AVPixelFormat pix_fmts[]
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
static int filter_frame(AVFilterLink *inlink, AVFrame *picref)
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
#define FILTER_OUTPUTS(array)
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
#define AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_GRAY12
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
#define AV_PIX_FMT_YUV420P14