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���]E � @ s� d d l Z d d d g Z Gd d � d e � Z d Z d Z d d l Z d d l Z d d l Z d d l m Z d d l m Z e d d � Z Gd d � d � Z Gd d � d � Z d d d � Z e Z d S)� N�open�openfp�Errorc @ s e Z d Z d S)r N)�__name__� __module__� __qualname__� r r �)/opt/alt/python35/lib64/python3.5/wave.pyr N s � �b�h�i)�Chunk)� namedtuple� _wave_paramsz7nchannels sampwidth framerate nframes comptype compnamec @ s e Z d Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d! d" � Z d# d$ � Z d% d& � Z d' d( � Z d) d* � Z d+ S),� Wave_readc C sc d | _ d | _ t | d d �| _ | j j � d k rH t d � � | j j d � d k rl t d � � d | _ d | _ x� d | _ y t | j d d �} Wn t k r� PYn X| j � } | d k r� | j | � d | _ nG | d k r1| j s t d � � | | _ | j | j | _ d | _ P| j � q� W| j sS| j r_t d � � d S) Nr Z bigendians RIFFz file does not start with RIFF id� s WAVEznot a WAVE filer s fmt s datazdata chunk before fmt chunkz#fmt chunk and/or data chunk missing)�_convert� _soundposr �_fileZgetnamer �readZ_fmt_chunk_read� _data_chunk�_data_seek_needed�EOFError�_read_fmt_chunk� chunksize� _framesize�_nframes�skip)�self�file�chunkZ chunknamer r r �initfp} s: zWave_read.initfpc C si d | _ t | t � r3 t j | d � } | | _ y | j | � Wn | j r] | j � � Yn Xd S)N�rb)�_i_opened_the_file� isinstance�str�builtinsr r" �close)r �fr r r �__init__� s zWave_read.__init__c C s | j � d S)N)r( )r r r r �__del__� s zWave_read.__del__c C s | S)Nr )r r r r � __enter__� s zWave_read.__enter__c G s | j � d S)N)r( )r �argsr r r �__exit__� s zWave_read.__exit__c C s | j S)N)r )r r r r �getfp� s zWave_read.getfpc C s d | _ d | _ d S)Nr r )r r )r r r r �rewind� s zWave_read.rewindc C s/ d | _ | j } | r+ d | _ | j � d S)N)r r$ r( )r r r r r r( � s zWave_read.closec C s | j S)N)r )r r r r �tell� s zWave_read.tellc C s | j S)N)� _nchannels)r r r r � getnchannels� s zWave_read.getnchannelsc C s | j S)N)r )r r r r � getnframes� s zWave_read.getnframesc C s | j S)N)� _sampwidth)r r r r � getsampwidth� s zWave_read.getsampwidthc C s | j S)N)� _framerate)r r r r � getframerate� s zWave_read.getframeratec C s | j S)N)� _comptype)r r r r � getcomptype� s zWave_read.getcomptypec C s | j S)N)� _compname)r r r r � getcompname� s zWave_read.getcompnamec C s= t | j � | j � | j � | j � | j � | j � � S)N)r r3 r6 r8 r4 r: r< )r r r r � getparams� s zWave_read.getparamsc C s d S)Nr )r r r r � getmarkers� s zWave_read.getmarkersc C s t d � � d S)Nzno marks)r )r �idr r r �getmark� s zWave_read.getmarkc C s= | d k s | | j k r' t d � � | | _ d | _ d S)Nr zposition not in ranger )r r r r )r �posr r r �setpos� s zWave_read.setposc C s� | j rN | j j d d � | j | j } | rE | j j | d � d | _ | d k r^ d S| j j | | j � } | j d k r� t j d k r� t j | | j � } | j r� | r� | j | � } | j t | � | j | j | _ | S)Nr � r �big)r r �seekr r r r5 �sys� byteorder�audioop�byteswapr �lenr2 )r �nframesrA �datar r r � readframes� s $zWave_read.readframesc C s� t j d | j d � � \ } | _ | _ } } | t k ro t j d | j d � � d } | d d | _ n t d | f � � | j | j | _ d | _ d | _ d S) Nz<HHLLH� z<H� r � � zunknown format: %r�NONEznot compressed) �struct� unpack_fromr r2 r7 �WAVE_FORMAT_PCMr5 r r r9 r; )r r! Z wFormatTagZdwAvgBytesPerSecZ wBlockAlign� sampwidthr r r r � s 0 zWave_read._read_fmt_chunkN)r r r r" r* r+ r, r. r/ r0 r( r1 r3 r4 r6 r8 r: r< r= r> r@ rB rM r r r r r r ^ s* r c @ s` e Z d Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d! d" � Z d# d$ � Z d% d& � Z d' d( � Z d) d* � Z d+ d, � Z d- d. � Z d/ d0 � Z d1 d2 � Z d3 d4 � Z d5 d6 � Z d7 d8 � Z d9 S):� Wave_writec C si d | _ t | t � r3 t j | d � } | | _ y | j | � Wn | j r] | j � � Yn Xd S)N�wb)r$ r% r& r' r r" r( )r r) r r r r* # s zWave_write.__init__c C s^ | | _ d | _ d | _ d | _ d | _ d | _ d | _ d | _ d | _ d | _ d S)Nr F) r r r2 r5 r7 r �_nframeswritten� _datawritten� _datalength�_headerwritten)r r r r r r" / s zWave_write.initfpc C s | j � d S)N)r( )r r r r r+ ; s zWave_write.__del__c C s | S)Nr )r r r r r, > s zWave_write.__enter__c G s | j � d S)N)r( )r r- r r r r. A s zWave_write.__exit__c C s: | j r t d � � | d k r- t d � � | | _ d S)Nz0cannot change parameters after starting to writer zbad # of channels)rZ r r2 )r � nchannelsr r r � setnchannelsG s zWave_write.setnchannelsc C s | j s t d � � | j S)Nznumber of channels not set)r2 r )r r r r r3 N s zWave_write.getnchannelsc C sF | j r t d � � | d k s- | d k r9 t d � � | | _ d S)Nz0cannot change parameters after starting to writer r zbad sample width)rZ r r5 )r rV r r r � setsampwidthS s zWave_write.setsampwidthc C s | j s t d � � | j S)Nzsample width not set)r5 r )r r r r r6 Z s zWave_write.getsampwidthc C sF | j r t d � � | d k r- t d � � t t | � � | _ d S)Nz0cannot change parameters after starting to writer zbad frame rate)rZ r �int�roundr7 )r � framerater r r � setframerate_ s zWave_write.setframeratec C s | j s t d � � | j S)Nzframe rate not set)r7 r )r r r r r8 f s zWave_write.getframeratec C s" | j r t d � � | | _ d S)Nz0cannot change parameters after starting to write)rZ r r )r rK r r r � setnframesk s zWave_write.setnframesc C s | j S)N)rY )r r r r r4 p s zWave_write.getnframesc C sC | j r t d � � | d k r- t d � � | | _ | | _ d S)Nz0cannot change parameters after starting to writerR z unsupported compression type)rR )rZ r r9 r; )r �comptype�compnamer r r � setcomptypes s zWave_write.setcomptypec C s | j S)N)r9 )r r r r r: { s zWave_write.getcomptypec C s | j S)N)r; )r r r r r< ~ s zWave_write.getcompnamec C su | \ } } } } } } | j r- t d � � | j | � | j | � | j | � | j | � | j | | � d S)Nz0cannot change parameters after starting to write)rZ r r^ r_ rc rd rg )r �paramsr] rV rb rK re rf r r r � setparams� s zWave_write.setparamsc C sU | j s | j s | j r* t d � � t | j | j | j | j | j | j � S)Nznot all parameters set)r2 r5 r7 r r r r9 r; )r r r r r= � s zWave_write.getparamsc C s t d � � d S)Nzsetmark() not supported)r )r r? rA �namer r r �setmark� s zWave_write.setmarkc C s t d � � d S)Nzno marks)r )r r? r r r r@ � s zWave_write.getmarkc C s d S)Nr )r r r r r> � s zWave_write.getmarkersc C s | j S)N)rY )r r r r r1 � s zWave_write.tellc C s� t | t t f � s* t | � j d � } | j t | � � t | � | j | j } | j ro | j | � } | j d k r� t j d k r� t j | | j � } | j j | � | j t | � 7_ | j | | _ d S)N�Br rD )r% �bytes� bytearray� memoryview�cast�_ensure_header_writtenrJ r5 r2 r rF rG rH rI r �writerZ rY )r rL rK r r r �writeframesraw� s zWave_write.writeframesrawc C s- | j | � | j | j k r) | j � d S)N)rs r[ rZ � _patchheader)r rL r r r � writeframes� s zWave_write.writeframesc C sv zC | j rB | j d � | j | j k r5 | j � | j j � Wd d | _ | j } | rq d | _ | j � Xd S)Nr )r rq r[ rZ rt �flushr$ r( )r r r r r r( � s zWave_write.closec C sY | j sU | j s t d � � | j s3 t d � � | j sH t d � � | j | � d S)Nz# channels not specifiedzsample width not specifiedzsampling rate not specified)r\ r2 r r5 r7 � _write_header)r Zdatasizer r r rq � s z!Wave_write._ensure_header_writtenc C s: | j j d � | j s0 | | j | j | _ | j | j | j | _ y | j j � | _ Wn! t t f k r� d | _ Yn X| j j t j d d | j d d d t | j | j | j | j | j | j | j | j d d � � | j d k r| j j � | _ | j j t j d | j � � d | _ d S) Ns RIFFz<L4s4sLHHLLHH4s�$ s WAVEs fmt � rQ s dataz<LT)r rr r r2 r5 r[ r1 �_form_length_pos�AttributeError�OSErrorrS �packrU r7 �_data_length_posr\ )r Z initlengthr r r rw � s$ zWave_write._write_headerc C s� | j | j k r d S| j j � } | j j | j d � | j j t j d d | j � � | j j | j d � | j j t j d | j � � | j j | d � | j | _ d S)Nr z<Lrx ) rZ r[ r r1 rE rz rr rS r} r~ )r Zcurposr r r rt � s # zWave_write._patchheaderN) r r r r* r" r+ r, r. r^ r3 r_ r6 rc r8 rd r4 rg r: r< ri r= rk r@ r> r1 rs ru r( rq rw rt r r r r rW s8 rW c C si | d k r- t | d � r' | j } n d } | d k rC t | � S| d k rY t | � St d � � d S) N�moder# �r�wrX z$mode must be 'r', 'rb', 'w', or 'wb')r� r# )r� rX )�hasattrr r rW r )r) r r r r r � s )Nr r Nr )r' �__all__� Exceptionr rU Z _array_fmtsrH rS rF r! r � collectionsr r r rW r r r r r r �<module>J s ��
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