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zAifc_read.__init__c C s | S �Nr �rX r r r � __enter__h s zAifc_read.__enter__c G s | � � d S rb �r_ �rX �argsr r r �__exit__k s zAifc_read.__exit__c C s | j S rb )rQ rc r r r �getfpq s zAifc_read.getfpc C s d| _ d| _d S )Nr r )rT rP rc r r r �rewindt s zAifc_read.rewindc C s | j }|d ur d | _ |�� d S rb )rQ r_ �rX r r r r r_ x s zAifc_read.closec C s | j S rb )rP rc r r r �tell~ s zAifc_read.tellc C s | j S rb )�
_nchannelsrc r r r � getnchannels� s zAifc_read.getnchannelsc C s | j S rb )�_nframesrc r r r �
getnframes� s zAifc_read.getnframesc C s | j S rb )�
_sampwidthrc r r r � getsampwidth� s zAifc_read.getsampwidthc C s | j S rb )�
_frameraterc r r r � getframerate� s zAifc_read.getframeratec C s | j S rb �� _comptyperc r r r � getcomptype� s zAifc_read.getcomptypec C s | j S rb �� _compnamerc r r r � getcompname� s zAifc_read.getcompnamec C s* t | �� | �� | �� | �� | �� | �� �S rb )rC rn rr rt rp rw rz rc r r r � getparams� s �zAifc_read.getparamsc C s t | j�dkrd S | jS �Nr �r9 rO rc r r r �
getmarkers� s zAifc_read.getmarkersc C s2 | j D ]}||d kr| S qtd�|���d S �Nr zmarker {0!r} does not exist�rO r �format�rX �id�markerr r r �getmark� s
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| j| _n4| jdv �r | j| _n | jdv �r6| j| _ntd��d| _n d | _d| _d S )N� rJ r �bad sample width�bad # of channels� r z Warning: bad COMM chunk size� r
r! � NONE� G722�� ulaw� ULAW�� alaw� ALAW� unsupported compression typer � not compressed)r rm r ro rq r? r, rs r r� rR Z chunksize�warnings�warnr
rv r r r� r ry r� rN r� r� )rX rY Zkludger r r r rU � sD
zAifc_read._read_comm_chunkc C s� t |�}zDt|�D ]6}t |�}t|�}t|�}|s6|r| j�|||f� qW nB ty� dt| j�t| j�dkrvdnd|f }t� |� Y n0 d S )Nz;Warning: MARK chunk contains only %s marker%s instead of %sr � r; )
r �ranger r rO �appendr r9 r� r� )rX rY Znmarkers�ir� r� �name�wr r r rV � s ��zAifc_read._readmark) r r r rQ rZ ra rd rh ri rj r_ rl rn rp rr rt rw rz r{ r~ r� r� r� r� r� r� rU rV r r r r rD s2 $( *rD c @ s0 e Zd ZdZdd� Zdd� Zdd� Zdd � Zd
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_AIFC_versionrM rv ry rN rm rq rs ro �_nframeswritten� _datawritten� _datalengthrO � _marklengthrR rk r r r rZ ? s zAifc_write.initfpc C s | � � d S rb re rc r r r �__del__P s zAifc_write.__del__c C s | S rb r rc r r r rd S s zAifc_write.__enter__c G s | � � d S rb re rf r r r rh V s zAifc_write.__exit__c C s | j rtd��d| _d S )N�0cannot change parameters after starting to writer �r� r rR rc r r r �aiff\ s zAifc_write.aiffc C s | j rtd��d| _d S )Nr� r r� rc r r r �aifca s zAifc_write.aifcc C s( | j rtd��|dk r td��|| _d S )Nr� r r� )r� r rm )rX � nchannelsr r r � setnchannelsf s
zAifc_write.setnchannelsc C s | j std��| j S )Nznumber of channels not set)rm r rc r r r rn m s zAifc_write.getnchannelsc C s0 | j rtd��|dk s |dkr&td��|| _d S )Nr� r r
r� )r� r rq )rX � sampwidthr r r � setsampwidthr s
zAifc_write.setsampwidthc C s | j std��| j S )Nzsample width not set)rq r rc r r r rr y s zAifc_write.getsampwidthc C s( | j rtd��|dkr td��|| _d S )Nr� r zbad frame rate)r� r rs )rX � framerater r r � setframerate~ s
zAifc_write.setframeratec C s | j std��| j S )Nzframe rate not set)rs r rc r r r rt � s zAifc_write.getframeratec C s | j rtd��|| _d S )Nr� )r� r ro )rX r� r r r �
setnframes� s zAifc_write.setnframesc C s | j S rb �r� rc r r r rp � s zAifc_write.getnframesc C s. | j rtd��|dvr td��|| _|| _d S �Nr� )r� r� r� r� r� r� r� )r� r rv ry )rX �comptype�compnamer r r � setcomptype� s zAifc_write.setcomptypec C s | j S rb ru rc r r r rw � s zAifc_write.getcomptypec C s | j S rb rx rc r r r rz � s zAifc_write.getcompnamec C sf |\}}}}}}| j r td��|dvr.td��| �|� | �|� | �|� | �|� | �||� d S r� )r� r r� r� r� r� r� )rX �paramsr� r� r� r� r� r� r r r � setparams� s
zAifc_write.setparamsc C s8 | j r| jr| jstd��t| j | j| j| j| j| j�S )Nznot all parameters set)rm rq rs r rC ro rv ry rc r r r r{ � s
�zAifc_write.getparamsc C s� |dkrt d��|dk r t d��t|t�s2t d��tt| j��D ],}|| j| d kr@|||f| j|< d S q@| j�|||f� d S )Nr zmarker ID must be > 0z marker position must be >= 0zmarker name must be bytes)r r\ �bytesr� r9 rO r� )rX r� r� r� r� r r r �setmark� s
zAifc_write.setmarkc C s2 | j D ]}||d kr| S qtd�|���d S r r� r� r r r r� � s
zAifc_write.getmarkc C s t | j�dkrd S | jS r| r} rc r r r r~ � s zAifc_write.getmarkersc C s | j S rb r� rc r r r rl � s zAifc_write.tellc C sz t |ttf�s t|��d�}| �t|�� t|�| j| j }| j rN| � |�}| j
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z!Aifc_write._ensure_header_writtenc C s> | j dkr| j| _n&| j dv r(| j| _n| j dv r:| j| _d S )Nr� r� r� )rv r� rN r� r� rc r r r �_init_compression s
z Aifc_write._init_compressionc C sH | j r| jdkr| �� | j�d� | js<|| j| j | _| j| j | j | _| jd@ rf| jd | _| j r�| jdv r�| jd | _| jd@ r�| jd | _n0| jdkr�| jd d | _| jd@ r�| jd | _z| j� � | _
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rG rK rF rH r� rJ rI r )rR rv r� rQ r. ro rm rq r� rl �_form_length_pos�AttributeError�OSError�_write_form_lengthr5 rM r2 � _nframes_posr@ rs r< ry �_ssnd_length_pos)rX Z
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d� t | j |d � | j �|d� | j| _|| _d S )Nr r8 r rJ )rQ rl r� r. r� ro r� r� r� r� r� r� r5 r� )rX Zcurposr� r r r r r� e s*
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zAifc_write._patchheaderc C s� t | j�dkrd S | j�d� d}| jD ]:}|\}}}|t |� d d }t |�d@ dkr(|d }q(t| j|� |d | _t| jt | j�� | jD ]2}|\}}}t| j|� t| j|� t| j|� q�d S )Nr rL r r � rJ )r9 rO rQ r. r5 r� r2 r< )rX r r� r� r� r� r r r r� { s"
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