U Ķb*@sdZddlZddlZddlZddlZddlZddlmZddlm Z ddZ e dZ e d Z ej e j_ejejge j_ejge j_eje j_ejej ejejge j_eje j_ejge j_eje j_ejejge j_eje j_ejejejejge j_eje j_ejejejejge j_eje j_ejejejge j_eje j_ejge j_d d Zed Zed ZedZ edZ!dZ"dZ#dZ$dZ%edZ&edZ'dZ(GdddeZ)ddZ*GdddZ+Gddde+Z,Gdddej-Z.Gd d!d!ej-Z/Gd"d#d#ej-Z0Gd$d%d%e Z1dS)&z-Read audio files using CoreAudio on Mac OS X.N) DecodeError) AudioFilecCstjtj|SN)ctypescdll LoadLibraryutilZ find_library)namer O/var/www/html/UseVoiceDocker/env/lib/python3.8/site-packages/audioread/macca.py_load_frameworksr Z AudioToolboxZCoreFoundationcCs>d}t|D],\}}t||dd}|t||>O}q |S)zEmulates character integer literals in C. Given a string "abc", returns the value of the C single-quoted literal 'abc'. rr) enumeratelenord)charsnumindexcharshiftr r r multi_char_literalPs rZffmtZcfmtz#frmZlpcmrztyp?zfmt?icseZdZfddZZS)MacErrorcs4|tkrd}n|tkrd}nd|}t|dS)Nzunsupported audio typezunsupported formatzerror %i) ERROR_TYPE ERROR_FORMATsuper__init__)selfcodemsg __class__r r rks zMacError.__init__)__name__ __module__ __qualname__r __classcell__r r r"r rjsrcCs&|tkrtdn|dkr"t|dS)z.If err is nonzero, raise a MacError exception.zfile not foundrN)ERROR_NOT_FOUNDOSErrorr)errr r r checkus r+c@seZdZddZddZdS)CFObjectcCs|dkrtd||_dS)Nrzobject is zero) ValueError_obj)robjr r r rszCFObject.__init__cCstrt|jdSr)_corefoundation CFReleaser.rr r r __del__szCFObject.__del__N)r$r%r&rr3r r r r r,sr,cs$eZdZfddZddZZS)CFURLcsPt|ts|t}tjtj|}t d|t |d}t |dS)NrF) isinstancebytesencodesysgetfilesystemencodingospathabspath expanduserr0'CFURLCreateFromFileSystemRepresentationrrrrfilenameurlr"r r rs zCFURL.__init__cCst|j}t|d}|S)Nr)r0CFURLGetStringr.CFStringGetCStringPtr)rZcfstroutr r r __str__s  z CFURL.__str__)r$r%r&rrEr'r r r"r r4s r4c @sXeZdZdejfdejfdejfdejfdejfdejfdejfdejfd ejfg Zd S) AudioStreamBasicDescription mSampleRate mFormatID mFormatFlagsmBytesPerPacketmFramesPerPacketmBytesPerFramemChannelsPerFramemBitsPerChannelZ mReservedN)r$r%r&rc_doublec_uint_fields_r r r r rFsrFc@s(eZdZdejfdejfdejfgZdS) AudioBuffermNumberChannels mDataByteSizemDataN)r$r%r&rrPc_void_prQr r r r rRsrRc@s"eZdZdejfdedfgZdS)AudioBufferListmNumberBuffersmBuffersrN)r$r%r&rrPrRrQr r r r rWs rWc@seZdZdZddZeddZddZdd Ze d d Z e d d Z e ddZ e ddZ d#ddZd$ddZddZddZddZddZd d!Zd"S)% ExtAudioFileajA CoreAudio "extended audio file". Reads information and raw PCM audio data from any file that CoreAudio knows how to decode. >>> with ExtAudioFile('something.m4a') as f: >>> print f.samplerate >>> print f.channels >>> print f.duration >>> for block in f: >>> do_something(block) cCsNt|}z|||_Wnd|_YnX~d|_d|_d|_|dS)NTF)r4 _open_urlr.closed _file_fmt _client_fmtsetupr?r r r rszExtAudioFile.__init__cCs$t}tt|jt||S)zGGiven a CFURL Python object, return an opened ExtAudioFileRef. )rrVr+ _coreaudioExtAudioFileOpenURLr.byref)clsrAZfile_objr r r r[s zExtAudioFile._open_urlc Cs:|jtksttt|jtt |t |||_ dS)zGet the client format description. This describes the encoding of the data that the program will read from this object. N) rH AUDIO_ID_PCMAssertionErrorr+r`ExtAudioFileSetPropertyr.PROP_CLIENT_DATA_FORMATrsizeofrbr^)rdescr r r set_client_formatszExtAudioFile.set_client_formatc CsR|jdk r|jSt}tt|}tt|jt t |t |||_|S)zaGet the file format description. This describes the type of data stored on disk. N) r]rFrc_intrhr+r`ExtAudioFileGetPropertyr.PROP_FILE_DATA_FORMATrb)rrisizer r r get_file_formats zExtAudioFile.get_file_formatcCst|jS)z+The number of channels in the audio source.)introrMr2r r r channelsszExtAudioFile.channelscCst|jS)z"Gets the sample rate of the audio.)rprorGr2r r r samplerateszExtAudioFile.sampleratecCst|j|jS)z1Gets the length of the file in seconds (a float).)floatnframesrrr2r r r duration szExtAudioFile.durationc Cs@t}tt|}tt|jtt |t ||j S)z-Gets the number of frames in the source file.) rc_longrkrhr+r`rlr. PROP_LENGTHrbvalue)rlengthrnr r r rtszExtAudioFile.nframescCsV|}t|}t|_ttB|_||_|j|jd|_ d|_ |j |_ | |dS)zSet the client format parameters, specifying the desired PCM audio data format to be read from the file. Must be called before reading from the file. rrN) rocopyrdrHPCM_IS_SIGNED_INT PCM_IS_PACKEDrIrNrMrJrKrLrj)rZbitdepthfmtZnewfmtr r r r_s zExtAudioFile.setupccst||jj}t|}t}d|_|jj|jd_ ||jd_ t |tj |jd_ tt|jt|t||jdkst|jdj }|sqt |jdj ttj}|d|}|VqZdS)zFGenerates byte strings reflecting the audio data in the file. rrN)rrPr^rLcreate_string_bufferrWrXrMrYrSrTcastrVrUr+r`ExtAudioFileReadr.rbrePOINTERc_char)r blocksizeframesbufZbuflistrndataZblobr r r read_data,s,      zExtAudioFile.read_datacCs |jstt|jd|_dS)z0Close the audio file and free associated memory.TN)r\r+r`ExtAudioFileDisposer.r2r r r closeHszExtAudioFile.closecCstr |dSr)r`rr2r r r r3NszExtAudioFile.__del__cCs|Srr r2r r r __enter__SszExtAudioFile.__enter__cCs |dS)NF)r)rexc_typeZexc_valZexc_tbr r r __exit__VszExtAudioFile.__exit__cCs|Sr)rr2r r r __iter__[szExtAudioFile.__iter__N)rz)r)r$r%r&__doc__r classmethodr[rjropropertyrqrrrurtr_rrr3rrrr r r r rZs*        rZ)2rr{rZ ctypes.utilr:r8 exceptionsrbaserr r`r0c_char_prCrestyperVrkargtypesr1r>c_boolrBrarfrPrlrrrrmrgrwrdZ PCM_IS_FLOATZPCM_IS_BIG_ENDIANr|r}rrr(rr+r,r4 StructurerFrRrWrZr r r r sl