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cache

Classes:

Functions:

ClipFramesCache

Bases: NodeFramesCache[VideoNode, VideoFrame]

ClipsCache

Bases: VSObjectABC, UserDict[VideoNode, VideoNode]

DynamicClipsCache 

DynamicClipsCache(cache_size: int = 2)

Bases: VSObjectABC, UserDict[T, VideoNode]

Methods:

Attributes:

Source code in vstools/utils/cache.py 
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def __init__(self, cache_size: int = 2) -> None:
    super().__init__()
    self.cache_size = cache_size

cache_size instance-attribute 

cache_size = cache_size

get_clip abstractmethod 

get_clip(key: T) -> VideoNode
Source code in vstools/utils/cache.py 
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@abstractmethod
def get_clip(self, key: T) -> vs.VideoNode: ...

FramesCache 

FramesCache(clip: NodeT, cache_size: int = 10)

Bases: VSObjectABC, UserDict[int, FrameT]

Methods:

Attributes:

Source code in vstools/utils/cache.py 
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def __init__(self, clip: NodeT, cache_size: int = 10) -> None:
    super().__init__()
    self.clip: NodeT = clip
    self.cache_size = cache_size

cache_size instance-attribute 

cache_size = cache_size

clip instance-attribute 

clip: NodeT = clip

add_frame 

add_frame(n: int, f: FrameT) -> FrameT
Source code in vstools/utils/cache.py 
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def add_frame(self, n: int, f: FrameT) -> FrameT:
    f = f.copy()
    self[n] = f
    return f

get_frame 

get_frame(n: int, f: FrameT) -> FrameT
Source code in vstools/utils/cache.py 
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def get_frame(self, n: int, f: FrameT) -> FrameT:
    return self[n]

LRUCache 

LRUCache(cache_size: int = 10)

Bases: VSObject, OrderedDict[K, V]

Methods:

Attributes:

Source code in vstools/utils/cache.py 
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def __init__(self, cache_size: int = 10) -> None:
    super().__init__()
    self._cache_size = cache_size

cache_size deletable property writable 

cache_size: int

prune 

prune() -> None
Source code in vstools/utils/cache.py 
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def prune(self) -> None:
    while len(self) > self._cache_size:
        self.popitem(last=False)

NodeFramesCache

Bases: VSObjectABC, UserDict[NodeT, FramesCache[NodeT, FrameT]]

NodesPropsCache 

NodesPropsCache(cache_size: int = 10)

Bases: LRUCache[tuple[NodeT, int], MutableMapping[str, '_PropValue']]

Methods:

Attributes:

Source code in vstools/utils/cache.py 
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def __init__(self, cache_size: int = 10) -> None:
    super().__init__()
    self._cache_size = cache_size

cache_size deletable property writable 

cache_size: int

prune 

prune() -> None
Source code in vstools/utils/cache.py 
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def prune(self) -> None:
    while len(self) > self._cache_size:
        self.popitem(last=False)

cache_clip 

cache_clip(_clip: NodeT, cache_size: int = 10) -> NodeT
Source code in vstools/utils/cache.py 
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def cache_clip[NodeT: vs.RawNode](_clip: NodeT, cache_size: int = 10) -> NodeT:
    if isinstance(_clip, vs.VideoNode):
        cache = FramesCache[vs.VideoNode, vs.VideoFrame](_clip, cache_size)

        blank = vs.core.std.BlankClip(_clip)

        to_cache_node = vs.core.std.ModifyFrame(blank, _clip, cache.add_frame)
        from_cache_node = vs.core.std.ModifyFrame(blank, blank, cache.get_frame)

        return vs.core.std.FrameEval(blank, lambda n: from_cache_node if n in cache else to_cache_node)  # type: ignore[return-value]

    # elif isinstance(_clip, vs.AudioNode):
    #     ...

    return _clip