}jSdSSKrSSKrSSKJr SSKrSSKJrJr SSKJ r SSK J r "SS5r g)N)Path)_core AudioSamples)create_wav_decoder)AudioStreamMetadatac\rSrSrSrS\\-\R-\R-\ -\ R-4Sjr S\4SjrS S\S \S-S\4S jjrS rg) WavDecoderaA fast decoder for WAV audio files. This is a lightweight, high-performance alternative to :class:`~torchcodec.decoders.AudioDecoder` that is specialized for WAV files. See :ref:`sphx_glr_generated_examples_decoding_performance_tips.py` for more details. Unlike :class:`~torchcodec.decoders.AudioDecoder`, this decoder does not support resampling (``sample_rate`` parameter) or channel remixing (``num_channels`` parameter). If you need those features, use :class:`~torchcodec.decoders.AudioDecoder`. Returned samples are float samples normalized in [-1, 1]. Args: source (str, ``Pathlib.path``, bytes, ``torch.Tensor`` or file-like object): The source of the audio: - If ``str``: a path to a local WAV file. - If ``Pathlib.path``: a path to a local WAV file. - If ``bytes`` object or ``torch.Tensor``: the raw WAV data. - If file-like object: we read audio data from the object on demand. The object must expose the methods ``read(self, size: int) -> bytes`` and ``seek(self, offset: int, whence: int) -> int``. Attributes: metadata (AudioStreamMetadata): Metadata of the audio stream. stream_index (int): The stream index. Always 0 for WAV files. sourcec L[RRS5 [U5UlXlSUl[R"UR5n[R"U5n[USUSUSUSUSUSUS US US SS 9 Ul g) Nztorchcodec.decoders.WavDecoderr sampleRate numChannels sampleFormatdurationSeconds streamIndexcodecbitRatedurationSecondsFromHeaderbeginStreamSeconds) sample_rate num_channels sample_formatduration_seconds stream_indexrbit_rateduration_seconds_from_headerbegin_stream_seconds begin_stream_seconds_from_header) torch_C_log_api_usage_oncer_decoder_sourcerrget_wav_metadata_from_decoderjsonloadsrmetadata)selfr metadata_json metadata_dicts ڮC:\Users\johnn\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.13_qbz5n2kfra8p0\LocalCache\local-packages\Python313\site-packages\torchcodec/decoders/_wav_decoder.py__init__WavDecoder.__init__2s $$%EF*62  ;;DMMJ  =1 +%l3&}5'7*+<=&}5("9-)67R)S!./C!D-1   returnc"UR5$)zReturns all the audio samples from the source. To decode samples in a specific range, use :meth:`~torchcodec.decoders.WavDecoder.get_samples_played_in_range`. Returns: AudioSamples: The samples within the file. )get_samples_played_in_range)r(s r+get_all_samplesWavDecoder.get_all_samplesLs//11r.N start_seconds stop_secondscrUbX::d[SUSUS35e[SU5n[R"URX25upEUR 5nUR RceURSUR R- n[UUUUR RS9$)aReturns audio samples in the given range. Samples are in the half open range [start_seconds, stop_seconds). To decode all the samples from beginning to end, you can call this method while leaving ``start_seconds`` and ``stop_seconds`` to their default values, or use :meth:`~torchcodec.decoders.WavDecoder.get_all_samples` as a more convenient alias. Args: start_seconds (float): Time, in seconds, of the start of the range. Default: 0. stop_seconds (float or None): Time, in seconds, of the end of the range. As a half open range, the end is excluded. Default: None, which decodes samples until the end. Returns: AudioSamples: The samples within the specified range. zInvalid start seconds: z1. It must be less than or equal to stop seconds (z).)data pts_secondsrr) ValueErrormaxrget_wav_samples_in_ranger"itemr'rshaper)r(r4r5actual_start_secondssamples actual_ptsrs r+r1&WavDecoder.get_samples_played_in_rangeWs.  #M,I)-8ijviwwyz  #3 6#<< MM/  __& }}((444"==+dmm.G.GG"- 11   r.)r"r#r'r)r7N)__name__ __module__ __qualname____firstlineno____doc__strrio RawIOBaseBufferedReaderbytesrTensorr,rr2floatr1__static_attributes__r.r+r r ss> d R\\)B,=,==E T 4 2 2HL( "( 8= ( ( ( r.r ) rJr%pathlibrr torchcodecrrtorchcodec._core._decoder_utilsrtorchcodec._core._metadatarr rQr.r+rVs(  *>:m m r.