
    i1                         d dl mZ d dlmZmZmZ d dlmZmZ d dl	m
Z
mZmZ d dlmZ d dlmZ d dlmZmZ esg dZ G d	 d
e      Z G d de      Z G d de      Zy)    )Sequence)AnyOptionalUnion)Tensortensor)*complex_scale_invariant_signal_noise_ratio"scale_invariant_signal_noise_ratiosignal_noise_ratio)Metric)_MATPLOTLIB_AVAILABLE)_AX_TYPE_PLOT_OUT_TYPE)zSignalNoiseRatio.plotz#ScaleInvariantSignalNoiseRatio.plotz*ComplexScaleInvariantSignalNoiseRatio.plotc                        e Zd ZU dZdZeed<   dZeed<   dZeed<   e	ed<   e	ed<   d	Z
ee   ed
<   d	Zee   ed<   	 ddededd	f fdZde	de	dd	fdZde	fdZ	 ddeee	ee	   f      dee   defdZ xZS )SignalNoiseRatioa3  Calculate `Signal-to-noise ratio`_ (SNR_) meric for evaluating quality of audio.

    .. math::
        \text{SNR} = \frac{P_{signal}}{P_{noise}}

    where  :math:`P` denotes the power of each signal. The SNR metric compares the level of the desired signal to
    the level of background noise. Therefore, a high value of SNR means that the audio is clear.

    As input to `forward` and `update` the metric accepts the following input

    - ``preds`` (:class:`~torch.Tensor`): float tensor with shape ``(...,time)``
    - ``target`` (:class:`~torch.Tensor`): float tensor with shape ``(...,time)``

    As output of `forward` and `compute` the metric returns the following output

    - ``snr`` (:class:`~torch.Tensor`): float scalar tensor with average SNR value over samples

    Args:
        zero_mean: if to zero mean target and preds or not
        kwargs: Additional keyword arguments, see :ref:`Metric kwargs` for more info.

    Raises:
        TypeError:
            if target and preds have a different shape

    Example:
        >>> from torch import tensor
        >>> from torchmetrics.audio import SignalNoiseRatio
        >>> target = tensor([3.0, -0.5, 2.0, 7.0])
        >>> preds = tensor([2.5, 0.0, 2.0, 8.0])
        >>> snr = SignalNoiseRatio()
        >>> snr(preds, target)
        tensor(16.1805)

    Ffull_state_updateTis_differentiablehigher_is_bettersum_snrtotalNplot_lower_boundplot_upper_bound	zero_meankwargsreturnc                     t        |   di | || _        | j                  dt	        d      d       | j                  dt	        d      d       y )Nr           sumdefaultdist_reduce_fxr   r    )super__init__r   	add_stater   selfr   r   	__class__s      k/Volumes/fast/ai/experiments/voice-extract-mac/.venv/lib/python3.12/site-packages/torchmetrics/audio/snr.pyr$   zSignalNoiseRatio.__init__Q   sH    
 	"6""y&+eLwq	%H    predstargetc                     t        ||| j                        }| xj                  |j                         z  c_        | xj                  |j                         z  c_        y*Update state with predictions and targets.)r+   r,   r   N)r   r   r   r   r   numel)r'   r+   r,   	snr_batchs       r)   updatezSignalNoiseRatio.update\   s=    &U6T^^\		'

ioo''
r*   c                 4    | j                   | j                  z  S zCompute metric.)r   r   r'   s    r)   computezSignalNoiseRatio.computec   s    ||djj((r*   valaxc                 &    | j                  ||      S )a  Plot a single or multiple values from the metric.

        Args:
            val: Either a single result from calling `metric.forward` or `metric.compute` or a list of these results.
                If no value is provided, will automatically call `metric.compute` and plot that result.
            ax: An matplotlib axis object. If provided will add plot to that axis

        Returns:
            Figure and Axes object

        Raises:
            ModuleNotFoundError:
                If `matplotlib` is not installed

        .. plot::
            :scale: 75

            >>> # Example plotting a single value
            >>> import torch
            >>> from torchmetrics.audio import SignalNoiseRatio
            >>> metric = SignalNoiseRatio()
            >>> metric.update(torch.rand(4), torch.rand(4))
            >>> fig_, ax_ = metric.plot()

        .. plot::
            :scale: 75

            >>> # Example plotting multiple values
            >>> import torch
            >>> from torchmetrics.audio import SignalNoiseRatio
            >>> metric = SignalNoiseRatio()
            >>> values = [ ]
            >>> for _ in range(10):
            ...     values.append(metric(torch.rand(4), torch.rand(4)))
            >>> fig_, ax_ = metric.plot(values)

        _plotr'   r7   r8   s      r)   plotzSignalNoiseRatio.plotg   s    P zz#r""r*   FNN)__name__
__module____qualname____doc__r   bool__annotations__r   r   r   r   r   floatr   r   r$   r2   r6   r   r   r   r   r=   __classcell__r(   s   @r)   r   r   $   s    "H $t#"t"!d!OM(,huo,(,huo,  	I	I 	I 
		I(F (F (t () )
 _c(#E&(6*:":;<(#IQRZI[(#	(#r*   r   c                        e Zd ZU dZdZeed<   eed<   dZdZe	e
   ed<   dZe	e
   ed<   ded	df fd
Zdeded	dfdZd	efdZddeeee   df   de	e   d	efdZ xZS )ScaleInvariantSignalNoiseRatioa7  Calculate `Scale-invariant signal-to-noise ratio`_ (SI-SNR) metric for evaluating quality of audio.

    As input to `forward` and `update` the metric accepts the following input

    - ``preds`` (:class:`~torch.Tensor`): float tensor with shape ``(...,time)``
    - ``target`` (:class:`~torch.Tensor`): float tensor with shape ``(...,time)``

    As output of `forward` and `compute` the metric returns the following output

    - ``si_snr`` (:class:`~torch.Tensor`): float scalar tensor with average SI-SNR value over samples

    Args:
        kwargs: Additional keyword arguments, see :ref:`Metric kwargs` for more info.

    Raises:
        TypeError:
            if target and preds have a different shape

    Example:
        >>> import torch
        >>> from torch import tensor
        >>> from torchmetrics.audio import ScaleInvariantSignalNoiseRatio
        >>> target = tensor([3.0, -0.5, 2.0, 7.0])
        >>> preds = tensor([2.5, 0.0, 2.0, 8.0])
        >>> si_snr = ScaleInvariantSignalNoiseRatio()
        >>> si_snr(preds, target)
        tensor(15.0918)

    T
sum_si_snrr   Nr   r   r   r   c                     t        |   di | | j                  dt        d      d       | j                  dt        d      d       y )NrK   r   r   r   r   r   r"   )r#   r$   r%   r   )r'   r   r(   s     r)   r$   z'ScaleInvariantSignalNoiseRatio.__init__   sA     	"6"|VC[Owq	%Hr*   r+   r,   c                     t        ||      }| xj                  |j                         z  c_        | xj                  |j	                         z  c_        y)r/   )r+   r,   N)r
   rK   r   r   r0   )r'   r+   r,   si_snr_batchs       r)   r2   z%ScaleInvariantSignalNoiseRatio.update   s<    9fU<++--

l((**
r*   c                 4    | j                   | j                  z  S r4   )rK   r   r5   s    r)   r6   z&ScaleInvariantSignalNoiseRatio.compute   s    ++r*   r7   r8   c                 &    | j                  ||      S )a6  Plot a single or multiple values from the metric.

        Args:
            val: Either a single result from calling `metric.forward` or `metric.compute` or a list of these results.
                If no value is provided, will automatically call `metric.compute` and plot that result.
            ax: An matplotlib axis object. If provided will add plot to that axis

        Returns:
            Figure and Axes object

        Raises:
            ModuleNotFoundError:
                If `matplotlib` is not installed

        .. plot::
            :scale: 75

            >>> # Example plotting a single value
            >>> import torch
            >>> from torchmetrics.audio import ScaleInvariantSignalNoiseRatio
            >>> metric = ScaleInvariantSignalNoiseRatio()
            >>> metric.update(torch.rand(4), torch.rand(4))
            >>> fig_, ax_ = metric.plot()

        .. plot::
            :scale: 75

            >>> # Example plotting multiple values
            >>> import torch
            >>> from torchmetrics.audio import ScaleInvariantSignalNoiseRatio
            >>> metric = ScaleInvariantSignalNoiseRatio()
            >>> values = [ ]
            >>> for _ in range(10):
            ...     values.append(metric(torch.rand(4), torch.rand(4)))
            >>> fig_, ax_ = metric.plot(values)

        r:   r<   s      r)   r=   z#ScaleInvariantSignalNoiseRatio.plot       L zz#r""r*   r?   )r@   rA   rB   rC   r   r   rE   r   r   r   rF   r   r   r$   r2   r6   r   r   r   r   r=   rG   rH   s   @r)   rJ   rJ      s    < M(,huo,(,huo,II 
I+F +F +t +, ,&#fhv&6<= &#(S[J\ &#hv &#r*   rJ   c                        e Zd ZU dZdZeed<   eed<   dZdZe	e
   ed<   dZe	e
   ed<   	 dded	ed
df fdZdeded
dfdZd
efdZddeeee   df   de	e   d
efdZ xZS )%ComplexScaleInvariantSignalNoiseRatioa  Calculate `Complex scale-invariant signal-to-noise ratio`_ (C-SI-SNR) metric for evaluating quality of audio.

    As input to `forward` and `update` the metric accepts the following input

    - ``preds`` (:class:`~torch.Tensor`): real float tensor with shape ``(...,frequency,time,2)`` or complex float
      tensor with shape ``(..., frequency,time)``

    - ``target`` (:class:`~torch.Tensor`): real float tensor with shape ``(...,frequency,time,2)`` or complex float
      tensor with shape ``(..., frequency,time)``

    As output of `forward` and `compute` the metric returns the following output

    - ``c_si_snr`` (:class:`~torch.Tensor`): float scalar tensor with average C-SI-SNR value over samples

    Args:
        zero_mean: if to zero mean target and preds or not
        kwargs: Additional keyword arguments, see :ref:`Metric kwargs` for more info.

    Raises:
        ValueError:
            If ``zero_mean`` is not an bool
        TypeError:
            If ``preds`` is not the shape (..., frequency, time, 2) (after being converted to real if it is complex).
            If ``preds`` and ``target`` does not have the same shape.

    Example:
        >>> from torch import randn
        >>> from torchmetrics.audio import ComplexScaleInvariantSignalNoiseRatio
        >>> preds = randn((1,257,100,2))
        >>> target = randn((1,257,100,2))
        >>> c_si_snr = ComplexScaleInvariantSignalNoiseRatio()
        >>> c_si_snr(preds, target)
        tensor(-38.8832)

    T
ci_snr_sumnumNr   r   r   r   r   c                     t        |   di | t        |t              st	        d|       || _        | j                  dt        d      d       | j                  dt        d      d       y )	Nz5Expected argument `zero_mean` to be an bool, but got rT   r   r   r   rU   r   r"   )r#   r$   
isinstancerD   
ValueErrorr   r%   r   r&   s      r)   r$   z.ComplexScaleInvariantSignalNoiseRatio.__init__!  sg    
 	"6")T*TU^T_`aa"|VC[OufQiFr*   r+   r,   c                     t        ||| j                        }| xj                  |j                         z  c_        | xj                  |j                         z  c_        yr.   )r	   r   rT   r   rU   r0   )r'   r+   r,   vs       r)   r2   z,ComplexScaleInvariantSignalNoiseRatio.update.  s?    6U6]a]k]kl1557"AGGIr*   c                 4    | j                   | j                  z  S r4   )rT   rU   r5   s    r)   r6   z-ComplexScaleInvariantSignalNoiseRatio.compute5  s    ))r*   r7   r8   c                 &    | j                  ||      S )az  Plot a single or multiple values from the metric.

        Args:
            val: Either a single result from calling `metric.forward` or `metric.compute` or a list of these results.
                If no value is provided, will automatically call `metric.compute` and plot that result.
            ax: An matplotlib axis object. If provided will add plot to that axis

        Returns:
            Figure and Axes object

        Raises:
            ModuleNotFoundError:
                If `matplotlib` is not installed

        .. plot::
            :scale: 75

            >>> # Example plotting a single value
            >>> import torch
            >>> from torchmetrics.audio import ComplexScaleInvariantSignalNoiseRatio
            >>> metric = ComplexScaleInvariantSignalNoiseRatio()
            >>> metric.update(torch.rand(1,257,100,2), torch.rand(1,257,100,2))
            >>> fig_, ax_ = metric.plot()

        .. plot::
            :scale: 75

            >>> # Example plotting multiple values
            >>> import torch
            >>> from torchmetrics.audio import ComplexScaleInvariantSignalNoiseRatio
            >>> metric = ComplexScaleInvariantSignalNoiseRatio()
            >>> values = [ ]
            >>> for _ in range(10):
            ...     values.append(metric(torch.rand(1,257,100,2), torch.rand(1,257,100,2)))
            >>> fig_, ax_ = metric.plot(values)

        r:   r<   s      r)   r=   z*ComplexScaleInvariantSignalNoiseRatio.plot9  rQ   r*   r>   r?   )r@   rA   rB   rC   r   r   rE   r   r   r   rF   r   rD   r   r$   r2   r6   r   r   r   r   r=   rG   rH   s   @r)   rS   rS      s    "H 	K(,huo,(,huo,  GG G 
	GF F t * *&#fhv&6<= &#(S[J\ &#hv &#r*   rS   N)collections.abcr   typingr   r   r   torchr   r   !torchmetrics.functional.audio.snrr	   r
   r   torchmetrics.metricr   torchmetrics.utilities.importsr   torchmetrics.utilities.plotr   r   __doctest_skip__r   rJ   rS   r"   r*   r)   <module>re      s_    % ' '   
 ' @ @k#v k#\`#V `#Fj#F j#r*   