Filter: avfilter.dnn_detect

Plugin Information

title: dnn_detect
media types: Video
description: Apply DNN detect filter to the input.
version: Lavfi10.2.102
creator: libavfilter maintainers

Notes

Many parameters support animated values (keyframes) but only the numeric ones. Many numeric properties have type string because they accept an expression (see FFmpeg documentation) even though they evaluate to a numeric value.

Parameters

av.dnn_backend

description: DNN backend
type: string
readonly: no
required: no
format: integer or keyword

av.confidence

description: threshold of confidence
type: float
readonly: no
required: no
minimum: 0
maximum: 1
default: 0.5

av.labels

description: path to labels file
type: string
readonly: no
required: no

av.model_type

description: DNN detection model type
type: string
readonly: no
required: no
format: integer or keyword
values:

  • ssd
  • yolo
  • yolov3
  • yolov4

av.cell_w

description: cell width
type: integer
readonly: no
required: no
minimum: 0
maximum: -2147483648
default: 0

av.cell_h

description: cell height
type: integer
readonly: no
required: no
minimum: 0
maximum: -2147483648
default: 0

av.nb_classes

description: The number of class
type: integer
readonly: no
required: no
minimum: 0
maximum: -2147483648
default: 0

av.anchors

description: anchors, splited by '&'
type: string
readonly: no
required: no

position

description: The MLT position value to set on avfilter frames
type: string
readonly: no
required: no
default: frame
values:

  • frame
  • filter
  • source
  • producer

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