RoughDraft

Extension/Scale.RoughDraft.Extension.ps1

Synopsis

Scales video.

---

Description

Scale the input video size and/or convert the image format.

The values of the Width and Height options are expressions containing the following constants:

Constant	Value
in_w
in_h	The input width and height
iw
ih	These are the same as in_w and in_h.
out_w
out_h	The output (scaled) width and height
ow
oh	These are the same as out_w and out_h
a	The same as iw / ih
sar	input sample aspect ratio
dar	The input display aspect ratio. Calculated from (iw / ih) * sar.
hsub
vsub	horizontal and vertical input chroma subsample values. For example for the pixel format “yuv422p” hsub is 2 and vsub is 1.
ohsub
ovsub	horizontal and vertical output chroma subsample values. For example for the pixel format “yuv422p” hsub is 2 and vsub is 1.
n	The (sequential) number of the input frame, starting from 0. Only available with eval=frame.
t	The presentation timestamp of the input frame, expressed as a number of seconds. Only available with eval=frame.
pos	The byte offset of the frame in the input. Only available with eval=frame.

---

Related Links

• https://ffmpeg.org/ffmpeg-filters.html#scale-1

---

Parameters

Scale

Scale the input video size and/or convert the image format.

Type	Required	Position	PipelineInput
[Switch]	true	named	false

ScaleWidth

Output video width

Type	Required	Position	PipelineInput	Aliases
[String]	false	1	false	scale_w scale_width

ScaleHeight

Output video height

Type	Required	Position	PipelineInput	Aliases
[String]	false	2	false	scale_h scale_height

ScaleFlags

Flags to pass to libswscale. See the ffmpeg-scalar manual Valid Values:

• fast_bilinear
• bilinear
• bicubic
• experimental
• neighbor
• area
• bicublin
• gauss
• sinc
• lanczos
• spline
• print_info
• accurate_rnd
• full_chroma_int
• full_chroma_inp
• bitexact

Type	Required	Position	PipelineInput	Aliases
[String]	false	3	false	scale_flags

ScaleInterlacing

Set interlacing

• 1 : forces interlaced aware scaling
• 0 : Do not apply interlaced scaling
• -1 : Select interlaced aware scaling depending on whether the source frames are flagged as interlaced or not.

Type	Required	Position	PipelineInput	Aliases
[Int32]	false	4	false	scale_interl

ScaleInColorMatrix

set input YCbCr type Valid Values:

• auto
• bt709
• fcc
• bt601
• bt470
• smpte170m
• smpte240m
• bt2020

Type	Required	Position	PipelineInput	Aliases
[String]	false	5	false	scale_in_color_matrix

ScaleOutColorMatrix

set output YCbCr type Valid Values:

• auto
• bt709
• fcc
• bt601
• bt470
• smpte170m
• smpte240m
• bt2020

Type	Required	Position	PipelineInput	Aliases
[String]	false	6	false	scale_out_color_matrix

ScaleInRange

set input color range Valid Values:

• auto
• unknown
• jpeg
• full
• pc
• mpeg
• limited
• tv

Type	Required	Position	PipelineInput	Aliases
[String]	false	7	false	scale_in_range

ScaleOutRange

set output color range Valid Values:

• auto
• unknown
• jpeg
• full
• pc
• mpeg
• limited
• tv

Type	Required	Position	PipelineInput	Aliases
[String]	false	8	false	scale_out_range

ScaleInVerticalChromaPosition

input vertical chroma position in luma grid/256

Type	Required	Position	PipelineInput	Aliases
[Int32]	false	9	false	scale_in_v_chr_pos

ScaleInHorizontalChromaPosition

input horizontal chroma position in luma grid/256

Type	Required	Position	PipelineInput	Aliases
[Int32]	false	10	false	scale_in_h_chr_pos

ScaleOutVerticalChromaPosition

output vertical chroma position in luma grid/256

Type	Required	Position	PipelineInput	Aliases
[Int32]	false	11	false	scale_out_v_chr_pos

ScaleOutHorizontalChromaPosition

output horizontal chroma position in luma grid/256

Type	Required	Position	PipelineInput	Aliases
[Int32]	false	12	false	scale_out_h_chr_pos

ScaleForceOriginalAspectRatio

decrease or increase w/h if necessary to keep the original AR Valid Values:

• disable
• increase
• decrease

Type	Required	Position	PipelineInput	Aliases
[Object]	false	13	false	scale_force_original_aspect_ratio

ScaleParam0

Scaler param 0

Type	Required	Position	PipelineInput	Aliases
[Double]	false	14	false	scale_param0

ScaleParam1

Scaler param 1

Type	Required	Position	PipelineInput	Aliases
[Double]	false	15	false	scale_param1

ScaleSliceCount

set the number of slices

Type	Required	Position	PipelineInput	Aliases
[Int32]	false	16	false	scale_nb_slices

ScaleEval

Specify when to evaluate expressions. Either initially or every frame. Valid Values:

• init
• frame

Type	Required	Position	PipelineInput	Aliases
[Object]	false	17	false	scale_eval

---

Syntax

Extension/Scale.RoughDraft.Extension.ps1 -Scale [[-ScaleWidth] <String>] [[-ScaleHeight] <String>] [[-ScaleFlags] <String>] [[-ScaleInterlacing] <Int32>] [[-ScaleInColorMatrix] <String>] [[-ScaleOutColorMatrix] <String>] [[-ScaleInRange] <String>] [[-ScaleOutRange] <String>] [[-ScaleInVerticalChromaPosition] <Int32>] [[-ScaleInHorizontalChromaPosition] <Int32>] [[-ScaleOutVerticalChromaPosition] <Int32>] [[-ScaleOutHorizontalChromaPosition] <Int32>] [[-ScaleForceOriginalAspectRatio] <Object>] [[-ScaleParam0] <Double>] [[-ScaleParam1] <Double>] [[-ScaleSliceCount] <Int32>] [[-ScaleEval] <Object>] [<CommonParameters>]

This site is open source. Contribute by editing this page.