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clips

Classes:

Functions:

ProcessVariableClip 

ProcessVariableClip(
    clip: VideoNode,
    out_dim: tuple[int, int] | Literal[False] | None = None,
    out_fmt: int | VideoFormat | Literal[False] | None = None,
    cache_size: int = 10,
)

Bases: DynamicClipsCache[T]

A helper class for processing variable format/resolution clip.

Initializes the class.

Parameters:

  • clip

    (VideoNode) –

    Clip to process

  • out_dim

    (tuple[int, int] | Literal[False] | None, default: None ) –

    Ouput dimension.

  • out_fmt

    (int | VideoFormat | Literal[False] | None, default: None ) –

    Output format.

  • cache_size

    (int, default: 10 ) –

    The maximum number of items allowed in the cache. Defaults to 10.

Methods:

  • eval_clip –
  • from_clip –

    Process a variable format/resolution clip.

  • from_func –

    Process a variable format/resolution clip with a given function

  • get_clip –
  • get_key –

    Generate a unique key based on the node or frame.

  • normalize –

    Normalize the given node to the format/resolution specified by the unique key cast_to.

  • process –

    Process the given clip.

Attributes:

Source code in vstools/functions/clips.py 
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def __init__(
    self,
    clip: vs.VideoNode,
    out_dim: tuple[int, int] | Literal[False] | None = None,
    out_fmt: int | vs.VideoFormat | Literal[False] | None = None,
    cache_size: int = 10,
) -> None:
    """
    Initializes the class.

    Args:
        clip: Clip to process
        out_dim: Ouput dimension.
        out_fmt: Output format.
        cache_size: The maximum number of items allowed in the cache. Defaults to 10.
    """
    bk_args = KwargsT(length=clip.num_frames, keep=True, varformat=None)

    if out_dim is None:
        out_dim = (clip.width, clip.height)

    if out_fmt is None:
        out_fmt = clip.format or False

    if out_dim is not False and 0 in out_dim:
        out_dim = False

    if out_dim is False:
        bk_args.update(width=8, height=8, varsize=True)
    else:
        bk_args.update(width=out_dim[0], height=out_dim[1])

    if out_fmt is False:
        bk_args.update(format=vs.GRAY8, varformat=True)
    else:
        bk_args.update(format=out_fmt if isinstance(out_fmt, int) else out_fmt.id)

    super().__init__(cache_size)

    self.clip = clip
    self.out = vs.core.std.BlankClip(clip, **bk_args)

cache_size instance-attribute 

cache_size = cache_size

clip instance-attribute 

clip = clip

out instance-attribute 

out = BlankClip(clip, **bk_args)

eval_clip 

eval_clip() -> VideoNode
Source code in vstools/functions/clips.py 
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def eval_clip(self) -> vs.VideoNode:
    if self.out.format and (0 not in (self.out.width, self.out.height)):
        try:
            return self.get_clip(self.get_key(self.clip))
        except Exception:
            ...

    return vs.core.std.FrameEval(self.out, lambda n, f: self[self.get_key(f)], self.clip)

from_clip classmethod 

from_clip(clip: VideoNode) -> VideoNode

Process a variable format/resolution clip.

Parameters:

  • clip

    (VideoNode) –

    Clip to process.

Returns:

  • VideoNode –

    Processed clip.

Source code in vstools/functions/clips.py 
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@classmethod
def from_clip(cls, clip: vs.VideoNode) -> vs.VideoNode:
    """
    Process a variable format/resolution clip.

    Args:
        clip: Clip to process.

    Returns:
        Processed clip.
    """
    return cls(clip).eval_clip()

from_func classmethod 

from_func(
    clip: VideoNode,
    func: Callable[[VideoNode], VideoNode],
    out_dim: tuple[int, int] | Literal[False] | None = None,
    out_fmt: int | VideoFormat | Literal[False] | None = None,
    cache_size: int = 10,
) -> VideoNode

Process a variable format/resolution clip with a given function

Parameters:

  • clip

    (VideoNode) –

    Clip to process.

  • func

    (Callable[[VideoNode], VideoNode]) –

    Function that takes and returns a single VideoNode.

  • out_dim

    (tuple[int, int] | Literal[False] | None, default: None ) –

    Ouput dimension.

  • out_fmt

    (int | VideoFormat | Literal[False] | None, default: None ) –

    Output format.

  • cache_size

    (int, default: 10 ) –

    The maximum number of VideoNode allowed in the cache. Defaults to 10.

Returns:

  • VideoNode –

    Processed variable clip.

Source code in vstools/functions/clips.py 
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@classmethod
def from_func(
    cls,
    clip: vs.VideoNode,
    func: Callable[[vs.VideoNode], vs.VideoNode],
    out_dim: tuple[int, int] | Literal[False] | None = None,
    out_fmt: int | vs.VideoFormat | Literal[False] | None = None,
    cache_size: int = 10,
) -> vs.VideoNode:
    """
    Process a variable format/resolution clip with a given function

    Args:
        clip: Clip to process.
        func: Function that takes and returns a single VideoNode.
        out_dim: Ouput dimension.
        out_fmt: Output format.
        cache_size: The maximum number of VideoNode allowed in the cache. Defaults to 10.

    Returns:
        Processed variable clip.
    """

    def process(self: ProcessVariableClip[T], clip: vs.VideoNode) -> vs.VideoNode:
        return func(clip)

    ns = cls.__dict__.copy()
    ns[process.__name__] = process

    return type(cls.__name__, cls.__bases__, ns)(clip, out_dim, out_fmt, cache_size).eval_clip()

get_clip 

get_clip(key: T) -> VideoNode
Source code in vstools/functions/clips.py 
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def get_clip(self, key: T) -> vs.VideoNode:
    return self.process(self.normalize(self.clip, key))

get_key abstractmethod 

get_key(frame: VideoNode | VideoFrame) -> T

Generate a unique key based on the node or frame. This key will be used to temporarily assert a resolution and format for the clip to process.

Parameters:

  • frame

    (VideoNode | VideoFrame) –

    Node or frame from which the unique key is generated.

Returns:

  • T –

    Unique identifier.

Source code in vstools/functions/clips.py 
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@abstractmethod
def get_key(self, frame: vs.VideoNode | vs.VideoFrame) -> T:
    """
    Generate a unique key based on the node or frame.
    This key will be used to temporarily assert a resolution and format for the clip to process.

    Args:
        frame: Node or frame from which the unique key is generated.

    Returns:
        Unique identifier.
    """

normalize abstractmethod 

normalize(clip: VideoNode, cast_to: T) -> VideoNode

Normalize the given node to the format/resolution specified by the unique key cast_to.

Parameters:

  • clip

    (VideoNode) –

    Clip to normalize.

  • cast_to

    (T) –

    The target resolution or format to which the clip should be cast or normalized.

Returns:

  • VideoNode –

    Normalized clip.

Source code in vstools/functions/clips.py 
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@abstractmethod
def normalize(self, clip: vs.VideoNode, cast_to: T) -> vs.VideoNode:
    """
    Normalize the given node to the format/resolution specified by the unique key `cast_to`.

    Args:
        clip: Clip to normalize.
        cast_to: The target resolution or format to which the clip should be cast or normalized.

    Returns:
        Normalized clip.
    """

process 

process(clip: VideoNode) -> VideoNode

Process the given clip.

Parameters:

  • clip

    (VideoNode) –

    Clip to process.

Returns:

  • VideoNode –

    Processed clip.

Source code in vstools/functions/clips.py 
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def process(self, clip: vs.VideoNode) -> vs.VideoNode:
    """
    Process the given clip.

    Args:
        clip: Clip to process.

    Returns:
        Processed clip.
    """
    return clip

ProcessVariableFormatClip 

ProcessVariableFormatClip(
    clip: VideoNode,
    out_dim: tuple[int, int] | Literal[False] | None = None,
    out_fmt: int | VideoFormat | Literal[False] | None = None,
    cache_size: int = 10,
)

Bases: ProcessVariableClip[VideoFormat]

A helper class for processing variable format clip.

Initializes the class.

Parameters:

  • clip

    (VideoNode) –

    Clip to process

  • out_dim

    (tuple[int, int] | Literal[False] | None, default: None ) –

    Ouput dimension.

  • out_fmt

    (int | VideoFormat | Literal[False] | None, default: None ) –

    Output format.

  • cache_size

    (int, default: 10 ) –

    The maximum number of items allowed in the cache. Defaults to 10.

Methods:

  • eval_clip –
  • from_clip –

    Process a variable format/resolution clip.

  • from_func –

    Process a variable format/resolution clip with a given function

  • get_clip –
  • get_key –

    Generate a unique key based on the node or frame.

  • normalize –

    Normalize the given node to the format/resolution specified by the unique key cast_to.

  • process –

    Process the given clip.

Attributes:

Source code in vstools/functions/clips.py 
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def __init__(
    self,
    clip: vs.VideoNode,
    out_dim: tuple[int, int] | Literal[False] | None = None,
    out_fmt: int | vs.VideoFormat | Literal[False] | None = None,
    cache_size: int = 10,
) -> None:
    """
    Initializes the class.

    Args:
        clip: Clip to process
        out_dim: Ouput dimension.
        out_fmt: Output format.
        cache_size: The maximum number of items allowed in the cache. Defaults to 10.
    """
    bk_args = KwargsT(length=clip.num_frames, keep=True, varformat=None)

    if out_dim is None:
        out_dim = (clip.width, clip.height)

    if out_fmt is None:
        out_fmt = clip.format or False

    if out_dim is not False and 0 in out_dim:
        out_dim = False

    if out_dim is False:
        bk_args.update(width=8, height=8, varsize=True)
    else:
        bk_args.update(width=out_dim[0], height=out_dim[1])

    if out_fmt is False:
        bk_args.update(format=vs.GRAY8, varformat=True)
    else:
        bk_args.update(format=out_fmt if isinstance(out_fmt, int) else out_fmt.id)

    super().__init__(cache_size)

    self.clip = clip
    self.out = vs.core.std.BlankClip(clip, **bk_args)

cache_size instance-attribute 

cache_size = cache_size

clip instance-attribute 

clip = clip

out instance-attribute 

out = BlankClip(clip, **bk_args)

eval_clip 

eval_clip() -> VideoNode
Source code in vstools/functions/clips.py 
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def eval_clip(self) -> vs.VideoNode:
    if self.out.format and (0 not in (self.out.width, self.out.height)):
        try:
            return self.get_clip(self.get_key(self.clip))
        except Exception:
            ...

    return vs.core.std.FrameEval(self.out, lambda n, f: self[self.get_key(f)], self.clip)

from_clip classmethod 

from_clip(clip: VideoNode) -> VideoNode

Process a variable format/resolution clip.

Parameters:

  • clip

    (VideoNode) –

    Clip to process.

Returns:

  • VideoNode –

    Processed clip.

Source code in vstools/functions/clips.py 
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@classmethod
def from_clip(cls, clip: vs.VideoNode) -> vs.VideoNode:
    """
    Process a variable format/resolution clip.

    Args:
        clip: Clip to process.

    Returns:
        Processed clip.
    """
    return cls(clip).eval_clip()

from_func classmethod 

from_func(
    clip: VideoNode,
    func: Callable[[VideoNode], VideoNode],
    out_dim: tuple[int, int] | Literal[False] | None = None,
    out_fmt: int | VideoFormat | Literal[False] | None = None,
    cache_size: int = 10,
) -> VideoNode

Process a variable format/resolution clip with a given function

Parameters:

  • clip

    (VideoNode) –

    Clip to process.

  • func

    (Callable[[VideoNode], VideoNode]) –

    Function that takes and returns a single VideoNode.

  • out_dim

    (tuple[int, int] | Literal[False] | None, default: None ) –

    Ouput dimension.

  • out_fmt

    (int | VideoFormat | Literal[False] | None, default: None ) –

    Output format.

  • cache_size

    (int, default: 10 ) –

    The maximum number of VideoNode allowed in the cache. Defaults to 10.

Returns:

  • VideoNode –

    Processed variable clip.

Source code in vstools/functions/clips.py 
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@classmethod
def from_func(
    cls,
    clip: vs.VideoNode,
    func: Callable[[vs.VideoNode], vs.VideoNode],
    out_dim: tuple[int, int] | Literal[False] | None = None,
    out_fmt: int | vs.VideoFormat | Literal[False] | None = None,
    cache_size: int = 10,
) -> vs.VideoNode:
    """
    Process a variable format/resolution clip with a given function

    Args:
        clip: Clip to process.
        func: Function that takes and returns a single VideoNode.
        out_dim: Ouput dimension.
        out_fmt: Output format.
        cache_size: The maximum number of VideoNode allowed in the cache. Defaults to 10.

    Returns:
        Processed variable clip.
    """

    def process(self: ProcessVariableClip[T], clip: vs.VideoNode) -> vs.VideoNode:
        return func(clip)

    ns = cls.__dict__.copy()
    ns[process.__name__] = process

    return type(cls.__name__, cls.__bases__, ns)(clip, out_dim, out_fmt, cache_size).eval_clip()

get_clip 

get_clip(key: T) -> VideoNode
Source code in vstools/functions/clips.py 
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def get_clip(self, key: T) -> vs.VideoNode:
    return self.process(self.normalize(self.clip, key))

get_key 

get_key(frame: VideoNode | VideoFrame) -> VideoFormat

Generate a unique key based on the node or frame. This key will be used to temporarily assert a resolution and format for the clip to process.

Parameters:

  • frame

    (VideoNode | VideoFrame) –

    Node or frame from which the unique key is generated.

Returns:

  • T –

    Unique identifier.

Source code in vstools/functions/clips.py 
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def get_key(self, frame: vs.VideoNode | vs.VideoFrame) -> vs.VideoFormat:
    assert frame.format
    return frame.format

normalize 

normalize(clip: VideoNode, cast_to: VideoFormat) -> VideoNode

Normalize the given node to the format/resolution specified by the unique key cast_to.

Parameters:

  • clip

    (VideoNode) –

    Clip to normalize.

  • cast_to

    (T) –

    The target resolution or format to which the clip should be cast or normalized.

Returns:

  • VideoNode –

    Normalized clip.

Source code in vstools/functions/clips.py 
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def normalize(self, clip: vs.VideoNode, cast_to: vs.VideoFormat) -> vs.VideoNode:
    normalized = vs.core.resize.Point(vs.core.std.RemoveFrameProps(clip), format=cast_to.id)
    return vs.core.std.CopyFrameProps(normalized, clip)

process 

process(clip: VideoNode) -> VideoNode

Process the given clip.

Parameters:

  • clip

    (VideoNode) –

    Clip to process.

Returns:

  • VideoNode –

    Processed clip.

Source code in vstools/functions/clips.py 
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def process(self, clip: vs.VideoNode) -> vs.VideoNode:
    """
    Process the given clip.

    Args:
        clip: Clip to process.

    Returns:
        Processed clip.
    """
    return clip

ProcessVariableResClip 

ProcessVariableResClip(
    clip: VideoNode,
    out_dim: tuple[int, int] | Literal[False] | None = None,
    out_fmt: int | VideoFormat | Literal[False] | None = None,
    cache_size: int = 10,
)

Bases: ProcessVariableClip[tuple[int, int]]

A helper class for processing variable resolution clip.

Initializes the class.

Parameters:

  • clip

    (VideoNode) –

    Clip to process

  • out_dim

    (tuple[int, int] | Literal[False] | None, default: None ) –

    Ouput dimension.

  • out_fmt

    (int | VideoFormat | Literal[False] | None, default: None ) –

    Output format.

  • cache_size

    (int, default: 10 ) –

    The maximum number of items allowed in the cache. Defaults to 10.

Methods:

  • eval_clip –
  • from_clip –

    Process a variable format/resolution clip.

  • from_func –

    Process a variable format/resolution clip with a given function

  • get_clip –
  • get_key –

    Generate a unique key based on the node or frame.

  • normalize –

    Normalize the given node to the format/resolution specified by the unique key cast_to.

  • process –

    Process the given clip.

Attributes:

Source code in vstools/functions/clips.py 
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def __init__(
    self,
    clip: vs.VideoNode,
    out_dim: tuple[int, int] | Literal[False] | None = None,
    out_fmt: int | vs.VideoFormat | Literal[False] | None = None,
    cache_size: int = 10,
) -> None:
    """
    Initializes the class.

    Args:
        clip: Clip to process
        out_dim: Ouput dimension.
        out_fmt: Output format.
        cache_size: The maximum number of items allowed in the cache. Defaults to 10.
    """
    bk_args = KwargsT(length=clip.num_frames, keep=True, varformat=None)

    if out_dim is None:
        out_dim = (clip.width, clip.height)

    if out_fmt is None:
        out_fmt = clip.format or False

    if out_dim is not False and 0 in out_dim:
        out_dim = False

    if out_dim is False:
        bk_args.update(width=8, height=8, varsize=True)
    else:
        bk_args.update(width=out_dim[0], height=out_dim[1])

    if out_fmt is False:
        bk_args.update(format=vs.GRAY8, varformat=True)
    else:
        bk_args.update(format=out_fmt if isinstance(out_fmt, int) else out_fmt.id)

    super().__init__(cache_size)

    self.clip = clip
    self.out = vs.core.std.BlankClip(clip, **bk_args)

cache_size instance-attribute 

cache_size = cache_size

clip instance-attribute 

clip = clip

out instance-attribute 

out = BlankClip(clip, **bk_args)

eval_clip 

eval_clip() -> VideoNode
Source code in vstools/functions/clips.py 
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def eval_clip(self) -> vs.VideoNode:
    if self.out.format and (0 not in (self.out.width, self.out.height)):
        try:
            return self.get_clip(self.get_key(self.clip))
        except Exception:
            ...

    return vs.core.std.FrameEval(self.out, lambda n, f: self[self.get_key(f)], self.clip)

from_clip classmethod 

from_clip(clip: VideoNode) -> VideoNode

Process a variable format/resolution clip.

Parameters:

  • clip

    (VideoNode) –

    Clip to process.

Returns:

  • VideoNode –

    Processed clip.

Source code in vstools/functions/clips.py 
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@classmethod
def from_clip(cls, clip: vs.VideoNode) -> vs.VideoNode:
    """
    Process a variable format/resolution clip.

    Args:
        clip: Clip to process.

    Returns:
        Processed clip.
    """
    return cls(clip).eval_clip()

from_func classmethod 

from_func(
    clip: VideoNode,
    func: Callable[[VideoNode], VideoNode],
    out_dim: tuple[int, int] | Literal[False] | None = None,
    out_fmt: int | VideoFormat | Literal[False] | None = None,
    cache_size: int = 10,
) -> VideoNode

Process a variable format/resolution clip with a given function

Parameters:

  • clip

    (VideoNode) –

    Clip to process.

  • func

    (Callable[[VideoNode], VideoNode]) –

    Function that takes and returns a single VideoNode.

  • out_dim

    (tuple[int, int] | Literal[False] | None, default: None ) –

    Ouput dimension.

  • out_fmt

    (int | VideoFormat | Literal[False] | None, default: None ) –

    Output format.

  • cache_size

    (int, default: 10 ) –

    The maximum number of VideoNode allowed in the cache. Defaults to 10.

Returns:

  • VideoNode –

    Processed variable clip.

Source code in vstools/functions/clips.py 
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@classmethod
def from_func(
    cls,
    clip: vs.VideoNode,
    func: Callable[[vs.VideoNode], vs.VideoNode],
    out_dim: tuple[int, int] | Literal[False] | None = None,
    out_fmt: int | vs.VideoFormat | Literal[False] | None = None,
    cache_size: int = 10,
) -> vs.VideoNode:
    """
    Process a variable format/resolution clip with a given function

    Args:
        clip: Clip to process.
        func: Function that takes and returns a single VideoNode.
        out_dim: Ouput dimension.
        out_fmt: Output format.
        cache_size: The maximum number of VideoNode allowed in the cache. Defaults to 10.

    Returns:
        Processed variable clip.
    """

    def process(self: ProcessVariableClip[T], clip: vs.VideoNode) -> vs.VideoNode:
        return func(clip)

    ns = cls.__dict__.copy()
    ns[process.__name__] = process

    return type(cls.__name__, cls.__bases__, ns)(clip, out_dim, out_fmt, cache_size).eval_clip()

get_clip 

get_clip(key: T) -> VideoNode
Source code in vstools/functions/clips.py 
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def get_clip(self, key: T) -> vs.VideoNode:
    return self.process(self.normalize(self.clip, key))

get_key 

get_key(frame: VideoNode | VideoFrame) -> tuple[int, int]

Generate a unique key based on the node or frame. This key will be used to temporarily assert a resolution and format for the clip to process.

Parameters:

  • frame

    (VideoNode | VideoFrame) –

    Node or frame from which the unique key is generated.

Returns:

  • T –

    Unique identifier.

Source code in vstools/functions/clips.py 
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def get_key(self, frame: vs.VideoNode | vs.VideoFrame) -> tuple[int, int]:
    return (frame.width, frame.height)

normalize 

normalize(clip: VideoNode, cast_to: tuple[int, int]) -> VideoNode

Normalize the given node to the format/resolution specified by the unique key cast_to.

Parameters:

  • clip

    (VideoNode) –

    Clip to normalize.

  • cast_to

    (T) –

    The target resolution or format to which the clip should be cast or normalized.

Returns:

  • VideoNode –

    Normalized clip.

Source code in vstools/functions/clips.py 
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def normalize(self, clip: vs.VideoNode, cast_to: tuple[int, int]) -> vs.VideoNode:
    normalized = vs.core.resize.Point(vs.core.std.RemoveFrameProps(clip), *cast_to)
    return vs.core.std.CopyFrameProps(normalized, clip)

process 

process(clip: VideoNode) -> VideoNode

Process the given clip.

Parameters:

  • clip

    (VideoNode) –

    Clip to process.

Returns:

  • VideoNode –

    Processed clip.

Source code in vstools/functions/clips.py 
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def process(self, clip: vs.VideoNode) -> vs.VideoNode:
    """
    Process the given clip.

    Args:
        clip: Clip to process.

    Returns:
        Processed clip.
    """
    return clip

ProcessVariableResFormatClip 

ProcessVariableResFormatClip(
    clip: VideoNode,
    out_dim: tuple[int, int] | Literal[False] | None = None,
    out_fmt: int | VideoFormat | Literal[False] | None = None,
    cache_size: int = 10,
)

Bases: ProcessVariableClip[tuple[int, int, VideoFormat]]

A helper class for processing variable format and resolution clip.

Initializes the class.

Parameters:

  • clip

    (VideoNode) –

    Clip to process

  • out_dim

    (tuple[int, int] | Literal[False] | None, default: None ) –

    Ouput dimension.

  • out_fmt

    (int | VideoFormat | Literal[False] | None, default: None ) –

    Output format.

  • cache_size

    (int, default: 10 ) –

    The maximum number of items allowed in the cache. Defaults to 10.

Methods:

  • eval_clip –
  • from_clip –

    Process a variable format/resolution clip.

  • from_func –

    Process a variable format/resolution clip with a given function

  • get_clip –
  • get_key –

    Generate a unique key based on the node or frame.

  • normalize –

    Normalize the given node to the format/resolution specified by the unique key cast_to.

  • process –

    Process the given clip.

Attributes:

Source code in vstools/functions/clips.py 
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def __init__(
    self,
    clip: vs.VideoNode,
    out_dim: tuple[int, int] | Literal[False] | None = None,
    out_fmt: int | vs.VideoFormat | Literal[False] | None = None,
    cache_size: int = 10,
) -> None:
    """
    Initializes the class.

    Args:
        clip: Clip to process
        out_dim: Ouput dimension.
        out_fmt: Output format.
        cache_size: The maximum number of items allowed in the cache. Defaults to 10.
    """
    bk_args = KwargsT(length=clip.num_frames, keep=True, varformat=None)

    if out_dim is None:
        out_dim = (clip.width, clip.height)

    if out_fmt is None:
        out_fmt = clip.format or False

    if out_dim is not False and 0 in out_dim:
        out_dim = False

    if out_dim is False:
        bk_args.update(width=8, height=8, varsize=True)
    else:
        bk_args.update(width=out_dim[0], height=out_dim[1])

    if out_fmt is False:
        bk_args.update(format=vs.GRAY8, varformat=True)
    else:
        bk_args.update(format=out_fmt if isinstance(out_fmt, int) else out_fmt.id)

    super().__init__(cache_size)

    self.clip = clip
    self.out = vs.core.std.BlankClip(clip, **bk_args)

cache_size instance-attribute 

cache_size = cache_size

clip instance-attribute 

clip = clip

out instance-attribute 

out = BlankClip(clip, **bk_args)

eval_clip 

eval_clip() -> VideoNode
Source code in vstools/functions/clips.py 
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def eval_clip(self) -> vs.VideoNode:
    if self.out.format and (0 not in (self.out.width, self.out.height)):
        try:
            return self.get_clip(self.get_key(self.clip))
        except Exception:
            ...

    return vs.core.std.FrameEval(self.out, lambda n, f: self[self.get_key(f)], self.clip)

from_clip classmethod 

from_clip(clip: VideoNode) -> VideoNode

Process a variable format/resolution clip.

Parameters:

  • clip

    (VideoNode) –

    Clip to process.

Returns:

  • VideoNode –

    Processed clip.

Source code in vstools/functions/clips.py 
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@classmethod
def from_clip(cls, clip: vs.VideoNode) -> vs.VideoNode:
    """
    Process a variable format/resolution clip.

    Args:
        clip: Clip to process.

    Returns:
        Processed clip.
    """
    return cls(clip).eval_clip()

from_func classmethod 

from_func(
    clip: VideoNode,
    func: Callable[[VideoNode], VideoNode],
    out_dim: tuple[int, int] | Literal[False] | None = None,
    out_fmt: int | VideoFormat | Literal[False] | None = None,
    cache_size: int = 10,
) -> VideoNode

Process a variable format/resolution clip with a given function

Parameters:

  • clip

    (VideoNode) –

    Clip to process.

  • func

    (Callable[[VideoNode], VideoNode]) –

    Function that takes and returns a single VideoNode.

  • out_dim

    (tuple[int, int] | Literal[False] | None, default: None ) –

    Ouput dimension.

  • out_fmt

    (int | VideoFormat | Literal[False] | None, default: None ) –

    Output format.

  • cache_size

    (int, default: 10 ) –

    The maximum number of VideoNode allowed in the cache. Defaults to 10.

Returns:

  • VideoNode –

    Processed variable clip.

Source code in vstools/functions/clips.py 
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@classmethod
def from_func(
    cls,
    clip: vs.VideoNode,
    func: Callable[[vs.VideoNode], vs.VideoNode],
    out_dim: tuple[int, int] | Literal[False] | None = None,
    out_fmt: int | vs.VideoFormat | Literal[False] | None = None,
    cache_size: int = 10,
) -> vs.VideoNode:
    """
    Process a variable format/resolution clip with a given function

    Args:
        clip: Clip to process.
        func: Function that takes and returns a single VideoNode.
        out_dim: Ouput dimension.
        out_fmt: Output format.
        cache_size: The maximum number of VideoNode allowed in the cache. Defaults to 10.

    Returns:
        Processed variable clip.
    """

    def process(self: ProcessVariableClip[T], clip: vs.VideoNode) -> vs.VideoNode:
        return func(clip)

    ns = cls.__dict__.copy()
    ns[process.__name__] = process

    return type(cls.__name__, cls.__bases__, ns)(clip, out_dim, out_fmt, cache_size).eval_clip()

get_clip 

get_clip(key: T) -> VideoNode
Source code in vstools/functions/clips.py 
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def get_clip(self, key: T) -> vs.VideoNode:
    return self.process(self.normalize(self.clip, key))

get_key 

get_key(frame: VideoNode | VideoFrame) -> tuple[int, int, VideoFormat]

Generate a unique key based on the node or frame. This key will be used to temporarily assert a resolution and format for the clip to process.

Parameters:

  • frame

    (VideoNode | VideoFrame) –

    Node or frame from which the unique key is generated.

Returns:

  • T –

    Unique identifier.

Source code in vstools/functions/clips.py 
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def get_key(self, frame: vs.VideoNode | vs.VideoFrame) -> tuple[int, int, vs.VideoFormat]:
    assert frame.format
    return (frame.width, frame.height, frame.format)

normalize 

normalize(clip: VideoNode, cast_to: tuple[int, int, VideoFormat]) -> VideoNode

Normalize the given node to the format/resolution specified by the unique key cast_to.

Parameters:

  • clip

    (VideoNode) –

    Clip to normalize.

  • cast_to

    (T) –

    The target resolution or format to which the clip should be cast or normalized.

Returns:

  • VideoNode –

    Normalized clip.

Source code in vstools/functions/clips.py 
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def normalize(self, clip: vs.VideoNode, cast_to: tuple[int, int, vs.VideoFormat]) -> vs.VideoNode:
    w, h, fmt = cast_to

    normalized = vs.core.resize.Point(vs.core.std.RemoveFrameProps(clip), w, h, fmt.id)

    return vs.core.std.CopyFrameProps(normalized, clip)

process 

process(clip: VideoNode) -> VideoNode

Process the given clip.

Parameters:

  • clip

    (VideoNode) –

    Clip to process.

Returns:

  • VideoNode –

    Processed clip.

Source code in vstools/functions/clips.py 
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def process(self, clip: vs.VideoNode) -> vs.VideoNode:
    """
    Process the given clip.

    Args:
        clip: Clip to process.

    Returns:
        Processed clip.
    """
    return clip

finalize_clip 

finalize_clip(
    clip: VideoNode,
    bits: VideoFormatLike | HoldsVideoFormat | int | None = 10,
    clamp_tv_range: bool = False,
    dither_type: DitherType = AUTO,
    *,
    func: FuncExcept | None = None
) -> VideoNode

Finalize a clip for output to the encoder.

Parameters:

  • clip

    (VideoNode) –

    Clip to output.

  • bits

    (VideoFormatLike | HoldsVideoFormat | int | None, default: 10 ) –

    Bitdepth to output to.

  • clamp_tv_range

    (bool, default: False ) –

    Whether to clamp to tv range.

  • dither_type

    (DitherType, default: AUTO ) –

    Dithering used for the bitdepth conversion.

  • func

    (FuncExcept | None, default: None ) –

    Function returned for custom error handling. This should only be set by VS package developers.

Returns:

  • VideoNode –

    Dithered down and optionally clamped clip.

Source code in vstools/functions/clips.py 
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def finalize_clip(
    clip: vs.VideoNode,
    bits: VideoFormatLike | HoldsVideoFormat | int | None = 10,
    clamp_tv_range: bool = False,
    dither_type: DitherType = DitherType.AUTO,
    *,
    func: FuncExcept | None = None,
) -> vs.VideoNode:
    """
    Finalize a clip for output to the encoder.

    Args:
        clip: Clip to output.
        bits: Bitdepth to output to.
        clamp_tv_range: Whether to clamp to tv range.
        dither_type: Dithering used for the bitdepth conversion.
        func: Function returned for custom error handling. This should only be set by VS package developers.

    Returns:
        Dithered down and optionally clamped clip.
    """
    from ..functions import limiter

    if bits:
        clip = depth(clip, bits, dither_type=dither_type)

    if clamp_tv_range:
        clip = limiter(clip, tv_range=clamp_tv_range)

    return clip

finalize_output 

finalize_output(
    function: Callable[P, VideoNode],
    /,
    *,
    bits: int | None = 10,
    clamp_tv_range: bool = False,
    dither_type: DitherType = AUTO,
    func: FuncExcept | None = None,
) -> Callable[P, VideoNode]

finalize_output(
    *,
    bits: int | None = 10,
    clamp_tv_range: bool = False,
    dither_type: DitherType = AUTO,
    func: FuncExcept | None = None
) -> Callable[[Callable[P, VideoNode]], Callable[P, VideoNode]]

finalize_output(
    function: Callable[P, VideoNode] | None = None,
    /,
    *,
    bits: int | None = 10,
    clamp_tv_range: bool = False,
    dither_type: DitherType = AUTO,
    func: FuncExcept | None = None,
) -> (
    Callable[P, VideoNode]
    | Callable[[Callable[P, VideoNode]], Callable[P, VideoNode]]
)

Decorator implementation of finalize_clip.

Source code in vstools/functions/clips.py 
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def finalize_output[**P](
    function: Callable[P, vs.VideoNode] | None = None,
    /,
    *,
    bits: int | None = 10,
    clamp_tv_range: bool = False,
    dither_type: DitherType = DitherType.AUTO,
    func: FuncExcept | None = None,
) -> Callable[P, vs.VideoNode] | Callable[[Callable[P, vs.VideoNode]], Callable[P, vs.VideoNode]]:
    """
    Decorator implementation of [finalize_clip][vstools.finalize_clip].
    """

    if function is None:
        return partial(finalize_output, bits=bits, clamp_tv_range=clamp_tv_range, dither_type=dither_type, func=func)

    @wraps(function)
    def _wrapper(*args: P.args, **kwargs: P.kwargs) -> vs.VideoNode:
        return finalize_clip(function(*args, **kwargs), bits, clamp_tv_range, dither_type, func=func)

    return _wrapper

initialize_clip 

initialize_clip(
    clip: VideoNode,
    bits: int | None = None,
    matrix: MatrixLike | None = None,
    transfer: TransferLike | None = None,
    primaries: PrimariesLike | None = None,
    chroma_location: ChromaLocationLike | None = None,
    color_range: ColorRangeLike | None = None,
    field_based: FieldBasedLike | None = None,
    strict: bool = False,
    dither_type: DitherType = AUTO,
    *,
    func: FuncExcept | None = None
) -> VideoNode

Initialize a clip with default props.

It is HIGHLY recommended to always use this function at the beginning of your scripts!

Parameters:

  • clip

    (VideoNode) –

    Clip to initialize.

  • bits

    (int | None, default: None ) –

    Bits to dither to.

    • If 0, no dithering is applied.
    • If None, 16 if bit depth is lower than it, else leave untouched.
    • If positive integer, dither to that bitdepth.

  • matrix

    (MatrixLike | None, default: None ) –

    Matrix property to set. If None, tries to get the Matrix from existing props. If no props are set or Matrix=2, guess from the video resolution.

  • transfer

    (TransferLike | None, default: None ) –

    Transfer property to set. If None, tries to get the Transfer from existing props. If no props are set or Transfer=2, guess from the video resolution.

  • primaries

    (PrimariesLike | None, default: None ) –

    Primaries property to set. If None, tries to get the Primaries from existing props. If no props are set or Primaries=2, guess from the video resolution.

  • chroma_location

    (ChromaLocationLike | None, default: None ) –

    ChromaLocation prop to set. If None, tries to get the ChromaLocation from existing props. If no props are set, guess from the video resolution.

  • color_range

    (ColorRangeLike | None, default: None ) –

    ColorRange prop to set. If None, tries to get the ColorRange from existing props. If no props are set, assume Limited Range.

  • field_based

    (FieldBasedLike | None, default: None ) –

    FieldBased prop to set. If None, tries to get the FieldBased from existing props. If no props are set, assume PROGRESSIVE.

  • strict

    (bool, default: False ) –

    Whether to be strict about existing properties. If True, throws an exception if certain frame properties are not found.

  • dither_type

    (DitherType, default: AUTO ) –

    Dithering used for the bitdepth conversion.

  • func

    (FuncExcept | None, default: None ) –

    Function returned for custom error handling. This should only be set by VS package developers.

Returns:

  • VideoNode –

    Clip with relevant frame properties set, and optionally dithered up to 16 bits by default.

Source code in vstools/functions/clips.py 
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def initialize_clip(
    clip: vs.VideoNode,
    bits: int | None = None,
    matrix: MatrixLike | None = None,
    transfer: TransferLike | None = None,
    primaries: PrimariesLike | None = None,
    chroma_location: ChromaLocationLike | None = None,
    color_range: ColorRangeLike | None = None,
    field_based: FieldBasedLike | None = None,
    strict: bool = False,
    dither_type: DitherType = DitherType.AUTO,
    *,
    func: FuncExcept | None = None,
) -> vs.VideoNode:
    """
    Initialize a clip with default props.

    It is HIGHLY recommended to always use this function at the beginning of your scripts!

    Args:
        clip: Clip to initialize.
        bits: Bits to dither to.

               - If 0, no dithering is applied.
               - If None, 16 if bit depth is lower than it, else leave untouched.
               - If positive integer, dither to that bitdepth.

        matrix: Matrix property to set. If None, tries to get the Matrix from existing props. If no props are set or
            Matrix=2, guess from the video resolution.
        transfer: Transfer property to set. If None, tries to get the Transfer from existing props. If no props are set
            or Transfer=2, guess from the video resolution.
        primaries: Primaries property to set. If None, tries to get the Primaries from existing props. If no props are
            set or Primaries=2, guess from the video resolution.
        chroma_location: ChromaLocation prop to set. If None, tries to get the ChromaLocation from existing props. If no
            props are set, guess from the video resolution.
        color_range: ColorRange prop to set. If None, tries to get the ColorRange from existing props. If no props are
            set, assume Limited Range.
        field_based: FieldBased prop to set. If None, tries to get the FieldBased from existing props. If no props are
            set, assume PROGRESSIVE.
        strict: Whether to be strict about existing properties. If True, throws an exception if certain frame properties
            are not found.
        dither_type: Dithering used for the bitdepth conversion.
        func: Function returned for custom error handling. This should only be set by VS package developers.

    Returns:
        Clip with relevant frame properties set, and optionally dithered up to 16 bits by default.
    """
    func = func or initialize_clip

    values: list[tuple[type[PropEnum], Any]] = [
        (Matrix, matrix),
        (Transfer, transfer),
        (Primaries, primaries),
        (ChromaLocation, chroma_location),
        (ColorRange, color_range),
        (FieldBased, field_based),
    ]

    to_ensure_presence = list[type[PropEnum] | PropEnum]()

    for prop_t, prop_v in values:
        if strict:
            to_ensure_presence.append(prop_t)
        else:
            p = prop_t.from_param(prop_v, func)

            if p is None:
                to_ensure_presence.append(prop_t.from_video(clip, False, func))
            else:
                to_ensure_presence.append(p)

    clip = PropEnum.ensure_presences(clip, to_ensure_presence, func)

    if bits is None:
        bits = max(get_depth(clip), 16)
    elif bits <= 0:
        return clip

    return depth(clip, bits, dither_type=dither_type)

initialize_input 

initialize_input(
    function: Callable[P, VideoNode],
    /,
    *,
    bits: int | None = 16,
    matrix: MatrixLike | None = None,
    transfer: TransferLike | None = None,
    primaries: PrimariesLike | None = None,
    chroma_location: ChromaLocationLike | None = None,
    color_range: ColorRangeLike | None = None,
    field_based: FieldBasedLike | None = None,
    strict: bool = False,
    dither_type: DitherType = AUTO,
    func: FuncExcept | None = None,
) -> Callable[P, VideoNode]

initialize_input(
    *,
    bits: int | None = 16,
    matrix: MatrixLike | None = None,
    transfer: TransferLike | None = None,
    primaries: PrimariesLike | None = None,
    chroma_location: ChromaLocationLike | None = None,
    color_range: ColorRangeLike | None = None,
    field_based: FieldBasedLike | None = None,
    dither_type: DitherType = AUTO,
    func: FuncExcept | None = None
) -> Callable[[Callable[P, VideoNode]], Callable[P, VideoNode]]

initialize_input(
    function: Callable[P, VideoNode] | None = None,
    /,
    *,
    bits: int | None = 16,
    matrix: MatrixLike | None = None,
    transfer: TransferLike | None = None,
    primaries: PrimariesLike | None = None,
    chroma_location: ChromaLocationLike | None = None,
    color_range: ColorRangeLike | None = None,
    field_based: FieldBasedLike | None = None,
    strict: bool = False,
    dither_type: DitherType = AUTO,
    func: FuncExcept | None = None,
) -> (
    Callable[P, VideoNode]
    | Callable[[Callable[P, VideoNode]], Callable[P, VideoNode]]
)

Decorator implementation of initialize_clip.

Initializes the first clip found in this order: positional arguments -> keyword arguments -> default arguments.

Source code in vstools/functions/clips.py 
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def initialize_input[**P](
    function: Callable[P, vs.VideoNode] | None = None,
    /,
    *,
    bits: int | None = 16,
    matrix: MatrixLike | None = None,
    transfer: TransferLike | None = None,
    primaries: PrimariesLike | None = None,
    chroma_location: ChromaLocationLike | None = None,
    color_range: ColorRangeLike | None = None,
    field_based: FieldBasedLike | None = None,
    strict: bool = False,
    dither_type: DitherType = DitherType.AUTO,
    func: FuncExcept | None = None,
) -> Callable[P, vs.VideoNode] | Callable[[Callable[P, vs.VideoNode]], Callable[P, vs.VideoNode]]:
    """
    Decorator implementation of [initialize_clip][vstools.initialize_clip].

    Initializes the first clip found in this order: positional arguments -> keyword arguments ->  default arguments.
    """

    if function is None:
        return partial(
            initialize_input,
            bits=bits,
            matrix=matrix,
            transfer=transfer,
            primaries=primaries,
            chroma_location=chroma_location,
            color_range=color_range,
            field_based=field_based,
            strict=strict,
            dither_type=dither_type,
            func=func,
        )

    init_args = dict[str, Any](
        bits=bits,
        matrix=matrix,
        transfer=transfer,
        primaries=primaries,
        chroma_location=chroma_location,
        color_range=color_range,
        field_based=field_based,
        strict=strict,
        dither_type=dither_type,
        func=func,
    )

    @wraps(function)
    def _wrapper(*args: P.args, **kwargs: P.kwargs) -> vs.VideoNode:
        args_l = list(args)

        for i, obj in enumerate(args_l):
            if isinstance(obj, vs.VideoNode):
                args_l[i] = initialize_clip(obj, **init_args)
                return function(*args_l, **kwargs)  # type: ignore[arg-type]

        kwargs2 = kwargs.copy()

        for name, obj in kwargs2.items():
            if isinstance(obj, vs.VideoNode):
                kwargs2[name] = initialize_clip(obj, **init_args)
                return function(*args, **kwargs2)  # type: ignore[arg-type]

        for name, param in signature(function).parameters.items():
            if isinstance(param.default, vs.VideoNode):
                return function(*args, **{name: initialize_clip(param.default, **init_args)}, **kwargs)  # type: ignore[arg-type]

        raise CustomValueError(
            "No VideoNode found in positional, keyword, nor default arguments!", func or initialize_input
        )

    return _wrapper

sc_detect 

sc_detect(clip: VideoNode, threshold: float = 0.1) -> VideoNode

Detects scene changes in a video clip based on frame difference statistics.

Parameters:

  • clip

    (VideoNode) –

    The input clip.

  • threshold

    (float, default: 0.1 ) –

    Sensitivity for scene change detection. Higher values make detection less sensitive. Default is 0.1.

Returns:

  • VideoNode –

    vs.VideoNode: A clip with scene change props (_SceneChangePrev and _SceneChangeNext) set for each frame.

Source code in vstools/functions/clips.py 
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def sc_detect(clip: vs.VideoNode, threshold: float = 0.1) -> vs.VideoNode:
    """
    Detects scene changes in a video clip based on frame difference statistics.

    Args:
        clip: The input clip.
        threshold: Sensitivity for scene change detection. Higher values make detection less sensitive. Default is 0.1.

    Returns:
        vs.VideoNode: A clip with scene change props (`_SceneChangePrev` and `_SceneChangeNext`) set for each frame.
    """
    stats = vs.core.std.PlaneStats(shift_clip(clip, -1), clip)

    return vs.core.akarin.PropExpr(
        [clip, stats, stats[1:]],
        lambda: {
            "_SceneChangePrev": f"y.PlaneStatsDiff {threshold} > 1 0 ?",
            "_SceneChangeNext": f"z.PlaneStatsDiff {threshold} > 1 0 ?",
        },
    )

shift_clip 

shift_clip(clip: VideoNode, offset: int) -> VideoNode

Shift a clip forwards or backwards by N frames.

This is useful for cases where you must compare every frame of a clip with the frame that comes before or after the current frame, like for example when performing temporal operations.

Both positive and negative integers are allowed. Positive values will shift a clip forward, negative will shift a clip backward.

Parameters:

  • clip

    (VideoNode) –

    Input clip.

  • offset

    (int) –

    Number of frames to offset the clip with. Negative values are allowed. Positive values will shift a clip forward, negative will shift a clip backward.

Returns:

  • VideoNode –

    Clip that has been shifted forwards or backwards by N frames.

Source code in vstools/functions/clips.py 
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def shift_clip(clip: vs.VideoNode, offset: int) -> vs.VideoNode:
    """
    Shift a clip forwards or backwards by N frames.

    This is useful for cases where you must compare every frame of a clip
    with the frame that comes before or after the current frame,
    like for example when performing temporal operations.

    Both positive and negative integers are allowed.
    Positive values will shift a clip forward, negative will shift a clip backward.

    Args:
        clip: Input clip.
        offset: Number of frames to offset the clip with. Negative values are allowed. Positive values will shift a clip
            forward, negative will shift a clip backward.

    Returns:
        Clip that has been shifted forwards or backwards by *N* frames.
    """

    if offset > clip.num_frames - 1:
        raise FramesLengthError(shift_clip, "offset")

    if offset < 0:
        return clip[0] * abs(offset) + clip[:offset]

    if offset > 0:
        return clip[offset:] + clip[-1] * offset

    return clip

shift_clip_multi 

shift_clip_multi(
    clip: VideoNode, offsets: StrictRange = (-1, 1)
) -> list[VideoNode]

Shift a clip forwards or backwards multiple times by a varying amount of frames.

This will return a clip for every shifting operation performed. This is a convenience function that makes handling multiple shifts easier.

Example:

>>> shift_clip_multi(clip, (-3, 3))
    [VideoNode, VideoNode, VideoNode, VideoNode, VideoNode, VideoNode, VideoNode]
        -3         -2         -1          0         +1         +2         +3

Parameters:

  • clip

    (VideoNode) –

    Input clip.

  • offsets

    (StrictRange, default: (-1, 1) ) –

    Tuple of offsets representing an inclusive range. A clip will be returned for every offset. Default: (-1, 1).

Returns:

  • list[VideoNode] –

    A list of clips, the amount determined by the amount of offsets.

Source code in vstools/functions/clips.py 
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def shift_clip_multi(clip: vs.VideoNode, offsets: StrictRange = (-1, 1)) -> list[vs.VideoNode]:
    """
    Shift a clip forwards or backwards multiple times by a varying amount of frames.

    This will return a clip for every shifting operation performed.
    This is a convenience function that makes handling multiple shifts easier.

    Example:

        >>> shift_clip_multi(clip, (-3, 3))
            [VideoNode, VideoNode, VideoNode, VideoNode, VideoNode, VideoNode, VideoNode]
                -3         -2         -1          0         +1         +2         +3

    Args:
        clip: Input clip.
        offsets: Tuple of offsets representing an inclusive range.
            A clip will be returned for every offset. Default: (-1, 1).

    Returns:
        A list of clips, the amount determined by the amount of offsets.
    """
    return [shift_clip(clip, x) for x in range(offsets[0], offsets[1] + 1)]