o %Æ&iÔ ã@s`dZddlmZddlmZmZddlmZdd„Zdd„Z d d „Z gZ dd d „Z ddd„Z dS)z-Multi-library, cross-platform audio decoding.é)Úffdec)Ú DecodeErrorÚNoBackendError)Ú AudioFilec Cstzddl}Wn tyYdSwz| dd¡Wn ttfy%YdSwz ddlm}WdSty9YdSw)zSDetermine whether Gstreamer and the Python GObject bindings are installed. éNFÚGstz1.0)rT)ÚgiÚ ImportErrorZrequire_versionÚ ValueErrorÚAttributeErrorZ gi.repositoryr)rr©r ú=C:\wamp64\www\opt\env\Lib\site-packages\audioread/__init__.pyÚ_gst_availables   ÿÿ ýÿrcCsddl}|j d¡}|duS)zUDetermines whether CoreAudio is available (i.e., we're running on Mac OS X). rNZ AudioToolbox)Z ctypes.utilÚutilZ find_library)ÚctypesÚlibr r r Ú _ca_available,s rcCs$zddl}WdStyYdSw)z4Determines whether the pymad bindings are available.rNFT)Úmadr )rr r r Ú_mad_available5s   ýÿrFcCsžtr|stSddlm}|jg}tƒrddlm}| |j¡tƒr.ddlm }| |j ¡t ƒr=ddlm }| |j ¡t ¡rG| tj¡|tdd…<tS)aReturns a list of backends that are available on this system. The list of backends is cached after the first call. If the parameter `flush_cache` is set to `True`, then the cache will be flushed and the backend list will be reconstructed. r)Úrawread)Úmacca)Úgstdec)ÚmaddecN)ÚBACKENDSÚrZ RawAudioFilerrÚappendZ ExtAudioFilerrZ GstAudioFilerrZ MadAudioFilerÚ availableZFFmpegAudioFile)Z flush_cacherÚresultrrrr r r Úavailable_backendsCs"         rNc Cs>|durtƒ}|D]}z||ƒWStyYq wtƒ‚)a$Open an audio file using a library that is available on this system. The optional `backends` parameter can be a list of audio file classes to try opening the file with. If it is not provided, `audio_open` tries all available backends. If you call this function many times, you can avoid the cost of checking for available backends every time by calling `available_backends` once and passing the result to each `audio_open` call. If all backends fail to read the file, a NoBackendError exception is raised. N)rrr)ÚpathÚbackendsZ BackendClassr r r Ú audio_openks ÿr!)F)N)Ú__doc__rrÚ exceptionsrrÚbaserrrrrrr!r r r r Ús    (