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wave.cpython-39.opt-2.pyc
a �DOgTF � @ s� d dl mZ d dlmZ d dlZd dlZd dlZd dlZg d�ZG dd� de �Z dZ dZ ed d �Z G d d � d �ZG d d� d�Zddd�ZdS )� )�Chunk)� namedtupleN)�open�Error� Wave_read� Wave_writec @ s e Zd ZdS )r N)�__name__� __module__� __qualname__� r r � /usr/lib64/python3.9/wave.pyr T s r � )N�b�hN�i� _wave_paramsz7nchannels sampwidth framerate nframes comptype compnamec @ s� e Zd Zdd� Zdd� Zdd� Zdd� Zd d � Zd d � Zd d� Z dd� Z dd� Z dd� Z dd� Z dd� Zdd� Zdd � Zd d � Zd d � Zd!d"� Zd#d$� Zd%d&� Zd'd(� Zd)d*� Zd+S ),r c C s� d | _ d| _t|dd�| _| j�� dkr0td��| j�d�dkrHtd��d| _d | _d| _ zt| jdd�}W n t y� Y q�Y n0 |�� }|d kr�| � |� d| _n2|d kr�| js�td ��|| _|j | j | _d| _ q�|�� qT| jr�| js�td ��d S ) Nr )Z bigendian� RIFFz file does not start with RIFF id� � WAVEznot a WAVE filer � fmt � datazdata chunk before fmt chunkz#fmt chunk and/or data chunk missing)�_convert� _soundposr �_fileZgetnamer �readZ_fmt_chunk_read� _data_chunk�_data_seek_needed�EOFError�_read_fmt_chunk� chunksize� _framesize�_nframes�skip)�self�file�chunkZ chunknamer r r �initfp} s8 zWave_read.initfpc C sR d | _ t|t�r"t�|d�}|| _ z| �|� W n | j rF|�� � Y n0 d S )N�rb��_i_opened_the_file� isinstance�str�builtinsr r& �close�r# �fr r r �__init__� s zWave_read.__init__c C s | � � d S �N�r- �r# r r r �__del__� s zWave_read.__del__c C s | S r1 r r3 r r r � __enter__� s zWave_read.__enter__c G s | � � d S r1 r2 �r# �argsr r r �__exit__� s zWave_read.__exit__c C s | j S r1 )r r3 r r r �getfp� s zWave_read.getfpc C s d| _ d| _d S )Nr r )r r r3 r r r �rewind� s zWave_read.rewindc C s" d | _ | j}|r d | _|�� d S r1 )r r) r- �r# r$ r r r r- � s zWave_read.closec C s | j S r1 )r r3 r r r �tell� s zWave_read.tellc C s | j S r1 )� _nchannelsr3 r r r � getnchannels� s zWave_read.getnchannelsc C s | j S r1 )r! r3 r r r � getnframes� s zWave_read.getnframesc C s | j S r1 )� _sampwidthr3 r r r � getsampwidth� s zWave_read.getsampwidthc C s | j S r1 )� _framerater3 r r r � getframerate� s zWave_read.getframeratec C s | j S r1 �� _comptyper3 r r r � getcomptype� s zWave_read.getcomptypec C s | j S r1 �� _compnamer3 r r r � getcompname� s zWave_read.getcompnamec C s* t | �� | �� | �� | �� | �� | �� �S r1 )r r> rA rC r? rF rI r3 r r r � getparams� s �zWave_read.getparamsc C s d S r1 r r3 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* |dk s|| j krtd��|| _d| _d S )Nr zposition not in ranger )r! r r r )r# �posr r r �setpos� s zWave_read.setposc C s� | j r8| j�dd� | j| j }|r2| j�|d� d| _ |dkrDdS | j�|| j �}| jdkrxtjdkrxt � || j�}| j r�|r�| � |�}| jt |�| j | j | _|S )Nr � r �big)r r �seekr r r r@ �sys� byteorder�audioop�byteswapr �lenr= )r# �nframesrQ �datar r r � readframes� s zWave_read.readframesc C s� z$t �d|�d��\}| _| _}}W n t jy> td �Y n0 |tkr�zt �d|�d��d }W n t jy| td �Y n0 |d d | _| js�t d��nt d |f ��| js�t d ��| j| j | _ d | _ d | _ d S ) Nz<HHLLH� z<H� r � � �bad sample widthzunknown format: %r�bad # of channels�NONEznot compressed) �struct� unpack_fromr r= rB �errorr �WAVE_FORMAT_PCMr@ r r rE rH )r# r% Z wFormatTagZdwAvgBytesPerSecZ wBlockAlign� sampwidthr r r r � s$ $ zWave_read._read_fmt_chunkN)r r r r& r0 r4 r5 r8 r9 r: r- r< r> r? rA rC rF rI rJ rK rP rR r] r r r r r r ^ s* r c @ s� e Zd Zdd� Zdd� Zdd� Zdd� Zd d � Zd d � Zd d� Z dd� Z dd� Z dd� Z dd� Z dd� Zdd� Zdd � Zd d � Zd d � Zd!d"� Zd#d$� Zd%d&� Zd'd(� Zd)d*� Zd+d,� Zd-d.� Zd/d0� Zd1d2� Zd3d4� Z d5d6� Z d7d8� Z d9S ):r c C sR d | _ t|t�r"t�|d�}|| _ z| �|� W n | j rF|�� � Y n0 d S )N�wbr( r. r r r r0 - s zWave_write.__init__c C s@ || _ d | _d| _d| _d| _d| _d| _d| _d| _d| _ d S )Nr F) r r r= r@ rB r! �_nframeswritten� _datawritten� _datalength�_headerwrittenr; r r r r& 9 s zWave_write.initfpc C s | � � d S r1 r2 r3 r r r r4 E s zWave_write.__del__c C s | S r1 r r3 r r r r5 H s zWave_write.__enter__c G s | � � d S r1 r2 r6 r r r r8 K s zWave_write.__exit__c C s( | j rtd��|dk r td��|| _d S )N�0cannot change parameters after starting to writer rc )rl r r= )r# � nchannelsr r r � setnchannelsQ s zWave_write.setnchannelsc C s | j std��| j S )Nznumber of channels not set)r= r r3 r r r r> X s zWave_write.getnchannelsc C s0 | j rtd��|dk s |dkr&td��|| _d S )Nro r r rb )rl r r@ )r# ri r r r � setsampwidth] s zWave_write.setsampwidthc C s | j std��| j S )Nzsample width not set)r@ r r3 r r r rA d s zWave_write.getsampwidthc C s0 | j rtd��|dkr td��tt|��| _d S )Nro r zbad frame rate)rl r �int�roundrB )r# � framerater r r � setframeratei s zWave_write.setframeratec C s | j std��| j S )Nzframe rate not set)rB r r3 r r r rC p s zWave_write.getframeratec C s | j rtd��|| _d S �Nro )rl r r! )r# r[ r r r � setnframesu s zWave_write.setnframesc C s | j S r1 �rk r3 r r r r? z s zWave_write.getnframesc C s. | j rtd��|dvr td��|| _|| _d S )Nro )rd z unsupported compression type)rl r rE rH )r# �comptype�compnamer r r � setcomptype} s zWave_write.setcomptypec C s | j S r1 rD r3 r r r rF � s zWave_write.getcomptypec C s | j S r1 rG r3 r r r rI � s zWave_write.getcompnamec C sV |\}}}}}}| j r td��| �|� | �|� | �|� | �|� | �||� d S rw )rl r rq rr rv rx r| )r# �paramsrp ri ru r[ rz r{ r r r � setparams� s zWave_write.setparamsc C s8 | j r| jr| jstd��t| j | j| j| j| j| j�S )Nznot all parameters set)r= r@ rB r r r! rE rH r3 r r r rJ � s �zWave_write.getparamsc C s t d��d S )Nzsetmark() not supportedrM )r# rO rQ �namer r r �setmark� s zWave_write.setmarkc C s t d��d S rL rM rN r r r rP � s zWave_write.getmarkc C s d S r1 r r3 r r r rK � s zWave_write.getmarkersc C s | j S r1 ry r3 r r r r< � s zWave_write.tellc C s� t |ttf�s t|��d�}| �t|�� t|�| j| j }| j rN| � |�}| jdkrpt j dkrpt � || j�}| j�|� | jt|�7 _| j| | _d S )N�Br rT )r* �bytes� bytearray� memoryview�cast�_ensure_header_writtenrZ r@ r= r rV rW rX rY r �writerl rk )r# r\ r[ r r r �writeframesraw� s zWave_write.writeframesrawc C s" | � |� | j| jkr | �� d S r1 )r� rm rl � _patchheader)r# r\ r r r � writeframes� s zWave_write.writeframesc C sv zP| j r0| �d� | j| jkr&| �� | j �� W d | _ | j}|rrd | _|�� n d | _ | j}|rpd | _|�� 0 d S )Nr )r r� rm rl r� �flushr) r- r; r r r r- � s �zWave_write.closec C s> | j s:| jstd��| js"td��| js0td��| �|� d S )Nz# channels not specifiedzsample width not specifiedzsampling rate not specified)rn r= r r@ rB � _write_header)r# Zdatasizer r r r� � s z!Wave_write._ensure_header_writtenc C s� | j �d� | js$|| j| j | _| j| j | j | _z| j �� | _W n tt fyd d | _Y n0 | j �t � dd| j dddt | j| j | j| j | j | j| j | jd d� � | jd ur�| j �� | _| j �t � d | j�� d | _d S ) Nr z<L4s4sLHHLLHH4s�$ r r � ra r �<LT)r r� r! r= r@ rm r< �_form_length_pos�AttributeError�OSErrorre �packrh rB �_data_length_posrn )r# Z initlengthr r r r� � s& � zWave_write._write_headerc C s� | j | jkrd S | j�� }| j�| jd� | j�t�dd| j �� | j�| j d� | j�t�d| j �� | j�|d� | j | _d S )Nr r� r� ) rl rm r r< rU r� r� re r� r� )r# Zcurposr r r r� � s zWave_write._patchheaderN) r r r r0 r& r4 r5 r8 rq r> rr rA rv rC rx r? r| rF rI r~ rJ r� rP rK r< r� r� r- r� r� r� r r r r r s8 r c C sJ |d u r t | d�r| j}nd}|dv r.t| �S |dv r>t| �S td��d S )N�moder' )�rr' )�wrj z$mode must be 'r', 'rb', 'w', or 'wb')�hasattrr� r r r )r/ r� r r r r � s r )N)r% r � collectionsr rX r, re rV �__all__� Exceptionr rh Z _array_fmtsr r r r r r r r �<module>J s" � 6 d
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