import{s as ua,o as ha,n as pa}from"../chunks/scheduler.9bc65507.js";import{S as fa,i as ga,g as r,s as n,u as p,A as va,h as a,f as o,c as s,j as c,v as u,y as m,k as i,o as t,a as x,w as h,d as f,t as g,x as v}from"../chunks/index.78c82d43.js";import{T as xa}from"../chunks/Tip.87d55b76.js";import{D as $}from"../chunks/Docstring.4e7352e2.js";import{C as _a}from"../chunks/CodeBlock.73e038be.js";import{I as pt}from"../chunks/IconCopyLink.bedaa44d.js";import{E as ya}from"../chunks/ExampleCodeBlock.872b014d.js";function ba(Je){let _,z="Examples:",w,M,F;return M=new _a({props:{code:"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",highlighted:`<span class="hljs-comment"># We can&#x27;t instantiate directly the base class *FeatureExtractionMixin* nor *SequenceFeatureExtractor* so let&#x27;s show the examples on a</span>
<span class="hljs-comment"># derived class: *Wav2Vec2FeatureExtractor*</span>
feature_extractor = Wav2Vec2FeatureExtractor.from_pretrained(
    <span class="hljs-string">&quot;facebook/wav2vec2-base-960h&quot;</span>
)  <span class="hljs-comment"># Download feature_extraction_config from huggingface.co and cache.</span>
feature_extractor = Wav2Vec2FeatureExtractor.from_pretrained(
    <span class="hljs-string">&quot;./test/saved_model/&quot;</span>
)  <span class="hljs-comment"># E.g. feature_extractor (or model) was saved using *save_pretrained(&#x27;./test/saved_model/&#x27;)*</span>
feature_extractor = Wav2Vec2FeatureExtractor.from_pretrained(<span class="hljs-string">&quot;./test/saved_model/preprocessor_config.json&quot;</span>)
feature_extractor = Wav2Vec2FeatureExtractor.from_pretrained(
    <span class="hljs-string">&quot;facebook/wav2vec2-base-960h&quot;</span>, return_attention_mask=<span class="hljs-literal">False</span>, foo=<span class="hljs-literal">False</span>
)
<span class="hljs-keyword">assert</span> feature_extractor.return_attention_mask <span class="hljs-keyword">is</span> <span class="hljs-literal">False</span>
feature_extractor, unused_kwargs = Wav2Vec2FeatureExtractor.from_pretrained(
    <span class="hljs-string">&quot;facebook/wav2vec2-base-960h&quot;</span>, return_attention_mask=<span class="hljs-literal">False</span>, foo=<span class="hljs-literal">False</span>, return_unused_kwargs=<span class="hljs-literal">True</span>
)
<span class="hljs-keyword">assert</span> feature_extractor.return_attention_mask <span class="hljs-keyword">is</span> <span class="hljs-literal">False</span>
<span class="hljs-keyword">assert</span> unused_kwargs == {<span class="hljs-string">&quot;foo&quot;</span>: <span class="hljs-literal">False</span>}`,wrap:!1}}),{c(){_=r("p"),_.textContent=z,w=n(),p(M.$$.fragment)},l(b){_=a(b,"P",{"data-svelte-h":!0}),m(_)!=="svelte-kvfsh7"&&(_.textContent=z),w=s(b),u(M.$$.fragment,b)},m(b,j){x(b,_,j),x(b,w,j),h(M,b,j),F=!0},p:pa,i(b){F||(f(M.$$.fragment,b),F=!0)},o(b){g(M.$$.fragment,b),F=!1},d(b){b&&(o(_),o(w)),v(M,b)}}}function $a(Je){let _,z=`If the <code>processed_features</code> passed are dictionary of numpy arrays, PyTorch tensors or TensorFlow tensors, the
result will use the same type unless you provide a different tensor type with <code>return_tensors</code>. In the case of
PyTorch tensors, you will lose the specific device of your tensors however.`;return{c(){_=r("p"),_.innerHTML=z},l(w){_=a(w,"P",{"data-svelte-h":!0}),m(_)!=="svelte-yvqf1m"&&(_.innerHTML=z)},m(w,M){x(w,_,M)},p:pa,d(w){w&&o(_)}}}function wa(Je){let _,z,w,M,F,b,j,ne,Rt,ke,zr="Feature Extractor",ut,se,Jr=`A feature extractor is in charge of preparing input features for audio or vision models. This includes feature extraction
from sequences, <em>e.g.</em>, pre-processing audio files to Log-Mel Spectrogram features, feature extraction from images
<em>e.g.</em> cropping image image files, but also padding, normalization, and conversion to Numpy, PyTorch, and TensorFlow
tensors.`,ht,P,V,st,ie,Bt,je,kr="FeatureExtractionMixin",ft,I,ce,Wt,Pe,jr=`This is a feature extraction mixin used to provide saving/loading functionality for sequential and image feature
extractors.`,Dt,J,le,Ut,Ce,Pr=`Instantiate a type of <a href="/docs/transformers/v4.34.0/en/main_classes/feature_extractor#transformers.FeatureExtractionMixin">FeatureExtractionMixin</a> from a feature extractor, <em>e.g.</em> a
derived class of <a href="/docs/transformers/v4.34.0/en/main_classes/feature_extractor#transformers.SequenceFeatureExtractor">SequenceFeatureExtractor</a>.`,Xt,H,St,q,de,Yt,Ze,Cr=`Save a feature_extractor object to the directory <code>save_directory</code>, so that it can be re-loaded using the
<a href="/docs/transformers/v4.34.0/en/main_classes/feature_extractor#transformers.FeatureExtractionMixin.from_pretrained">from_pretrained()</a> class method.`,gt,C,R,it,me,At,Ne,Zr="SequenceFeatureExtractor",vt,L,pe,Gt,Ve,Nr="This is a general feature extraction class for speech recognition.",Qt,E,ue,Ot,He,Vr=`Pad input values / input vectors or a batch of input values / input vectors up to predefined length or to the
max sequence length in the batch.`,Kt,qe,Hr=`Padding side (left/right) padding values are defined at the feature extractor level (with <code>self.padding_side</code>,
<code>self.padding_value</code>)`,er,B,xt,Z,W,ct,he,tr,Re,qr="BatchFeature",_t,T,fe,rr,Be,Rr='Holds the output of the <a href="/docs/transformers/v4.34.0/en/main_classes/feature_extractor#transformers.SequenceFeatureExtractor.pad">pad()</a> and feature extractor specific <code>__call__</code> methods.',ar,We,Br="This class is derived from a python dictionary and can be used as a dictionary.",or,D,ge,nr,De,Wr="Convert the inner content to tensors.",sr,U,ve,ir,Ue,Dr=`Send all values to device by calling <code>v.to(*args, **kwargs)</code> (PyTorch only). This should support casting in
different <code>dtypes</code> and sending the <code>BatchFeature</code> to a different <code>device</code>.`,yt,N,X,lt,xe,cr,Xe,Ur="ImageFeatureExtractionMixin",bt,d,_e,lr,Se,Xr="Mixin that contain utilities for preparing image features.",dr,S,ye,mr,Ye,Sr=`Crops <code>image</code> to the given size using a center crop. Note that if the image is too small to be cropped to the
size given, it will be padded (so the returned result has the size asked).`,pr,Y,be,ur,Ae,Yr="Converts <code>PIL.Image.Image</code> to RGB format.",hr,A,$e,fr,Ge,Ar="Expands 2-dimensional <code>image</code> to 3 dimensions.",gr,G,we,vr,Qe,Gr=`Flips the channel order of <code>image</code> from RGB to BGR, or vice versa. Note that this will trigger a conversion of
<code>image</code> to a NumPy array if it’s a PIL Image.`,xr,Q,Te,_r,Oe,Qr=`Normalizes <code>image</code> with <code>mean</code> and <code>std</code>. Note that this will trigger a conversion of <code>image</code> to a NumPy array
if it’s a PIL Image.`,yr,O,Me,br,Ke,Or="Rescale a numpy image by scale amount",$r,K,Fe,wr,et,Kr="Resizes <code>image</code>. Enforces conversion of input to PIL.Image.",Tr,ee,Ie,Mr,tt,ea=`Returns a rotated copy of <code>image</code>. This method returns a copy of <code>image</code>, rotated the given number of degrees
counter clockwise around its centre.`,Fr,te,Ee,Ir,rt,ta=`Converts <code>image</code> to a numpy array. Optionally rescales it and puts the channel dimension as the first
dimension.`,Er,re,Le,Lr,at,ra=`Converts <code>image</code> to a PIL Image. Optionally rescales it and puts the channel dimension back as the last axis if
needed.`,$t,dt,wt;return ne=new pt({}),ie=new pt({}),ce=new $({props:{name:"class transformers.FeatureExtractionMixin",anchor:"transformers.FeatureExtractionMixin",parameters:[{name:"**kwargs",val:""}],source:"https://github.com/huggingface/transformers/blob/v4.34.0/src/transformers/feature_extraction_utils.py#L233"}}),le=new $({props:{name:"from_pretrained",anchor:"transformers.FeatureExtractionMixin.from_pretrained",parameters:[{name:"pretrained_model_name_or_path",val:": typing.Union[str, os.PathLike]"},{name:"cache_dir",val:": typing.Union[str, os.PathLike, NoneType] = None"},{name:"force_download",val:": bool = False"},{name:"local_files_only",val:": bool = False"},{name:"token",val:": typing.Union[bool, str, NoneType] = None"},{name:"revision",val:": str = 'main'"},{name:"**kwargs",val:""}],parametersDescription:[{anchor:"transformers.FeatureExtractionMixin.from_pretrained.pretrained_model_name_or_path",description:`<strong>pretrained_model_name_or_path</strong> (<code>str</code> or <code>os.PathLike</code>) &#x2014;
This can be either:</p>
<ul>
<li>a string, the <em>model id</em> of a pretrained feature_extractor hosted inside a model repo on
huggingface.co. Valid model ids can be located at the root-level, like <code>bert-base-uncased</code>, or
namespaced under a user or organization name, like <code>dbmdz/bert-base-german-cased</code>.</li>
<li>a path to a <em>directory</em> containing a feature extractor file saved using the
<a href="/docs/transformers/v4.34.0/en/main_classes/feature_extractor#transformers.FeatureExtractionMixin.save_pretrained">save_pretrained()</a> method, e.g.,
<code>./my_model_directory/</code>.</li>
<li>a path or url to a saved feature extractor JSON <em>file</em>, e.g.,
<code>./my_model_directory/preprocessor_config.json</code>.</li>
</ul>`,name:"pretrained_model_name_or_path"},{anchor:"transformers.FeatureExtractionMixin.from_pretrained.cache_dir",description:`<strong>cache_dir</strong> (<code>str</code> or <code>os.PathLike</code>, <em>optional</em>) &#x2014;
Path to a directory in which a downloaded pretrained model feature extractor should be cached if the
standard cache should not be used.`,name:"cache_dir"},{anchor:"transformers.FeatureExtractionMixin.from_pretrained.force_download",description:`<strong>force_download</strong> (<code>bool</code>, <em>optional</em>, defaults to <code>False</code>) &#x2014;
Whether or not to force to (re-)download the feature extractor files and override the cached versions
if they exist.`,name:"force_download"},{anchor:"transformers.FeatureExtractionMixin.from_pretrained.resume_download",description:`<strong>resume_download</strong> (<code>bool</code>, <em>optional</em>, defaults to <code>False</code>) &#x2014;
Whether or not to delete incompletely received file. Attempts to resume the download if such a file
exists.`,name:"resume_download"},{anchor:"transformers.FeatureExtractionMixin.from_pretrained.proxies",description:`<strong>proxies</strong> (<code>Dict[str, str]</code>, <em>optional</em>) &#x2014;
A dictionary of proxy servers to use by protocol or endpoint, e.g., <code>{&apos;http&apos;: &apos;foo.bar:3128&apos;, &apos;http://hostname&apos;: &apos;foo.bar:4012&apos;}.</code> The proxies are used on each request.`,name:"proxies"},{anchor:"transformers.FeatureExtractionMixin.from_pretrained.token",description:`<strong>token</strong> (<code>str</code> or <code>bool</code>, <em>optional</em>) &#x2014;
The token to use as HTTP bearer authorization for remote files. If <code>True</code>, or not specified, will use
the token generated when running <code>huggingface-cli login</code> (stored in <code>~/.huggingface</code>).`,name:"token"},{anchor:"transformers.FeatureExtractionMixin.from_pretrained.revision",description:`<strong>revision</strong> (<code>str</code>, <em>optional</em>, defaults to <code>&quot;main&quot;</code>) &#x2014;
The specific model version to use. It can be a branch name, a tag name, or a commit id, since we use a
git-based system for storing models and other artifacts on huggingface.co, so <code>revision</code> can be any
identifier allowed by git.`,name:"revision"}],source:"https://github.com/huggingface/transformers/blob/v4.34.0/src/transformers/feature_extraction_utils.py#L257",returnDescription:`
<p>A feature extractor of type <a
  href="/docs/transformers/v4.34.0/en/main_classes/feature_extractor#transformers.FeatureExtractionMixin"
>FeatureExtractionMixin</a>.</p>
`}}),H=new ya({props:{anchor:"transformers.FeatureExtractionMixin.from_pretrained.example",$$slots:{default:[ba]},$$scope:{ctx:Je}}}),de=new $({props:{name:"save_pretrained",anchor:"transformers.FeatureExtractionMixin.save_pretrained",parameters:[{name:"save_directory",val:": typing.Union[str, os.PathLike]"},{name:"push_to_hub",val:": bool = False"},{name:"**kwargs",val:""}],parametersDescription:[{anchor:"transformers.FeatureExtractionMixin.save_pretrained.save_directory",description:`<strong>save_directory</strong> (<code>str</code> or <code>os.PathLike</code>) &#x2014;
Directory where the feature extractor JSON file will be saved (will be created if it does not exist).`,name:"save_directory"},{anchor:"transformers.FeatureExtractionMixin.save_pretrained.push_to_hub",description:`<strong>push_to_hub</strong> (<code>bool</code>, <em>optional</em>, defaults to <code>False</code>) &#x2014;
Whether or not to push your model to the Hugging Face model hub after saving it. You can specify the
repository you want to push to with <code>repo_id</code> (will default to the name of <code>save_directory</code> in your
namespace).`,name:"push_to_hub"},{anchor:"transformers.FeatureExtractionMixin.save_pretrained.kwargs",description:`<strong>kwargs</strong> (<code>Dict[str, Any]</code>, <em>optional</em>) &#x2014;
Additional key word arguments passed along to the <a href="/docs/transformers/v4.34.0/en/main_classes/processors#transformers.ProcessorMixin.push_to_hub">push_to_hub()</a> method.`,name:"kwargs"}],source:"https://github.com/huggingface/transformers/blob/v4.34.0/src/transformers/feature_extraction_utils.py#L369"}}),me=new pt({}),pe=new $({props:{name:"class transformers.SequenceFeatureExtractor",anchor:"transformers.SequenceFeatureExtractor",parameters:[{name:"feature_size",val:": int"},{name:"sampling_rate",val:": int"},{name:"padding_value",val:": float"},{name:"**kwargs",val:""}],parametersDescription:[{anchor:"transformers.SequenceFeatureExtractor.feature_size",description:`<strong>feature_size</strong> (<code>int</code>) &#x2014;
The feature dimension of the extracted features.`,name:"feature_size"},{anchor:"transformers.SequenceFeatureExtractor.sampling_rate",description:`<strong>sampling_rate</strong> (<code>int</code>) &#x2014;
The sampling rate at which the audio files should be digitalized expressed in hertz (Hz).`,name:"sampling_rate"},{anchor:"transformers.SequenceFeatureExtractor.padding_value",description:`<strong>padding_value</strong> (<code>float</code>) &#x2014;
The value that is used to fill the padding values / vectors.`,name:"padding_value"}],source:"https://github.com/huggingface/transformers/blob/v4.34.0/src/transformers/feature_extraction_sequence_utils.py#L29"}}),ue=new $({props:{name:"pad",anchor:"transformers.SequenceFeatureExtractor.pad",parameters:[{name:"processed_features",val:": typing.Union[transformers.feature_extraction_utils.BatchFeature, typing.List[transformers.feature_extraction_utils.BatchFeature], typing.Dict[str, transformers.feature_extraction_utils.BatchFeature], typing.Dict[str, typing.List[transformers.feature_extraction_utils.BatchFeature]], typing.List[typing.Dict[str, transformers.feature_extraction_utils.BatchFeature]]]"},{name:"padding",val:": typing.Union[bool, str, transformers.utils.generic.PaddingStrategy] = True"},{name:"max_length",val:": typing.Optional[int] = None"},{name:"truncation",val:": bool = False"},{name:"pad_to_multiple_of",val:": typing.Optional[int] = None"},{name:"return_attention_mask",val:": typing.Optional[bool] = None"},{name:"return_tensors",val:": typing.Union[str, transformers.utils.generic.TensorType, NoneType] = None"}],parametersDescription:[{anchor:"transformers.SequenceFeatureExtractor.pad.processed_features",description:`<strong>processed_features</strong> (<a href="/docs/transformers/v4.34.0/en/main_classes/image_processor#transformers.BatchFeature">BatchFeature</a>, list of <a href="/docs/transformers/v4.34.0/en/main_classes/image_processor#transformers.BatchFeature">BatchFeature</a>, <code>Dict[str, List[float]]</code>, <code>Dict[str, List[List[float]]</code> or <code>List[Dict[str, List[float]]]</code>) &#x2014;
Processed inputs. Can represent one input (<a href="/docs/transformers/v4.34.0/en/main_classes/image_processor#transformers.BatchFeature">BatchFeature</a> or <code>Dict[str, List[float]]</code>) or a batch of
input values / vectors (list of <a href="/docs/transformers/v4.34.0/en/main_classes/image_processor#transformers.BatchFeature">BatchFeature</a>, <em>Dict[str, List[List[float]]]</em> or <em>List[Dict[str,
List[float]]]</em>) so you can use this method during preprocessing as well as in a PyTorch Dataloader
collate function.</p>
<p>Instead of <code>List[float]</code> you can have tensors (numpy arrays, PyTorch tensors or TensorFlow tensors),
see the note above for the return type.`,name:"processed_features"},{anchor:"transformers.SequenceFeatureExtractor.pad.padding",description:`<strong>padding</strong> (<code>bool</code>, <code>str</code> or <a href="/docs/transformers/v4.34.0/en/internal/file_utils#transformers.utils.PaddingStrategy">PaddingStrategy</a>, <em>optional</em>, defaults to <code>True</code>) &#x2014;
Select a strategy to pad the returned sequences (according to the model&#x2019;s padding side and padding
index) among:</p>
<ul>
<li><code>True</code> or <code>&apos;longest&apos;</code>: Pad to the longest sequence in the batch (or no padding if only a single
sequence if provided).</li>
<li><code>&apos;max_length&apos;</code>: Pad to a maximum length specified with the argument <code>max_length</code> or to the maximum
acceptable input length for the model if that argument is not provided.</li>
<li><code>False</code> or <code>&apos;do_not_pad&apos;</code> (default): No padding (i.e., can output a batch with sequences of different
lengths).</li>
</ul>`,name:"padding"},{anchor:"transformers.SequenceFeatureExtractor.pad.max_length",description:`<strong>max_length</strong> (<code>int</code>, <em>optional</em>) &#x2014;
Maximum length of the returned list and optionally padding length (see above).`,name:"max_length"},{anchor:"transformers.SequenceFeatureExtractor.pad.truncation",description:`<strong>truncation</strong> (<code>bool</code>) &#x2014;
Activates truncation to cut input sequences longer than <code>max_length</code> to <code>max_length</code>.`,name:"truncation"},{anchor:"transformers.SequenceFeatureExtractor.pad.pad_to_multiple_of",description:`<strong>pad_to_multiple_of</strong> (<code>int</code>, <em>optional</em>) &#x2014;
If set will pad the sequence to a multiple of the provided value.</p>
<p>This is especially useful to enable the use of Tensor Cores on NVIDIA hardware with compute capability
<code>&gt;= 7.5</code> (Volta), or on TPUs which benefit from having sequence lengths be a multiple of 128.`,name:"pad_to_multiple_of"},{anchor:"transformers.SequenceFeatureExtractor.pad.return_attention_mask",description:`<strong>return_attention_mask</strong> (<code>bool</code>, <em>optional</em>) &#x2014;
Whether to return the attention mask. If left to the default, will return the attention mask according
to the specific feature_extractor&#x2019;s default.</p>
<p><a href="../glossary#attention-mask">What are attention masks?</a>`,name:"return_attention_mask"},{anchor:"transformers.SequenceFeatureExtractor.pad.return_tensors",description:`<strong>return_tensors</strong> (<code>str</code> or <a href="/docs/transformers/v4.34.0/en/internal/file_utils#transformers.TensorType">TensorType</a>, <em>optional</em>) &#x2014;
If set, will return tensors instead of list of python integers. Acceptable values are:</p>
<ul>
<li><code>&apos;tf&apos;</code>: Return TensorFlow <code>tf.constant</code> objects.</li>
<li><code>&apos;pt&apos;</code>: Return PyTorch <code>torch.Tensor</code> objects.</li>
<li><code>&apos;np&apos;</code>: Return Numpy <code>np.ndarray</code> objects.</li>
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