File: //lib64/python3.9/__pycache__/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