o *i @sdZddlZddlmZmZddlZddlmZddlm Z ddl m Z mZgdZd eefd d Zd eefd dZddZd eefddZdS)z.Defines utilities for switching audio backendsN)ListOptional)soundfile_backend) module_utils) _no_backend_sox_io_backend)list_audio_backendsget_audio_backendset_audio_backendreturncCs.g}tdr |dtjjr|d|S)z]List available backends Returns: List[str]: The list of available backends. soundfilesox_io) _mod_utilsZis_module_availableappend torchaudio _extensionZ_SOX_INITIALIZEDbackendsrg/var/www/html/eduruby.in/lip-sync/lip-sync-env/lib/python3.10/site-packages/torchaudio/backend/utils.pyr s    r backendcCs|dur|tvrtd|dtd|durt}n|dkr#t}n|dkr*t}ntd|dd D] }tt|t||q4dS) aSet the backend for I/O operation Args: backend (str or None): Name of the backend. One of ``"sox_io"`` or ``"soundfile"`` based on availability of the system. If ``None`` is provided the current backend is unassigned. Nz Backend "z$" is not one of available backends: .rr zUnexpected backend "")saveloadinfo) r RuntimeError no_backendsox_io_backendrNotImplementedErrorsetattrrgetattr)rmodulefuncrrrr sr cCsHtjdddt}d|vrtddSd|vrtddStddS)NzTorchAudio's global backend is now deprecated. Please enable distpatcher by setting `TORCHAUDIO_USE_BACKEND_DISPATCHER=1`, and specify backend when calling load/info/save function.) stacklevelrr )warningswarnr r rrrr _init_backend8s   r)cCs8tjtjkrdStjtjkrdStjtjkrdStd)zGet the name of the current backend Returns: Optional[str]: The name of the current backend or ``None`` if no backend is assigned. Nrr zUnknown backend.)rrrrr ValueErrorrrrrr Hs   r )__doc__r'typingrrrZtorchaudio._backendrZtorchaudio._internalrrrrrr__all__strr r r)r rrrrs