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Editing: sndhdr.cpython-33.pyc
� �� fK c @ sZ d Z d d g Z d d � Z d d � Z g Z d d � Z e j e � d d � Z e j e � d d � Z e j e � d d � Z e j e � d d � Z e j e � d d � Z e j e � d d � Z e j e � d d � Z e j e � d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z e d! k rVe � n d" S(# u� Routines to help recognizing sound files. Function whathdr() recognizes various types of sound file headers. It understands almost all headers that SOX can decode. The return tuple contains the following items, in this order: - file type (as SOX understands it) - sampling rate (0 if unknown or hard to decode) - number of channels (0 if unknown or hard to decode) - number of frames in the file (-1 if unknown or hard to decode) - number of bits/sample, or 'U' for U-LAW, or 'A' for A-LAW If the file doesn't have a recognizable type, it returns None. If the file can't be opened, IOError is raised. To compute the total time, divide the number of frames by the sampling rate (a frame contains a sample for each channel). Function what() calls whathdr(). (It used to also use some heuristics for raw data, but this doesn't work very well.) Finally, the function test() is a simple main program that calls what() for all files mentioned on the argument list. For directory arguments it calls what() for all files in that directory. Default argument is "." (testing all files in the current directory). The option -r tells it to recurse down directories found inside explicitly given directories. u whatu whathdrc C s t | � } | S( u Guess the type of a sound file.( u whathdr( u filenameu res( ( u+ /opt/alt/python33/lib64/python3.3/sndhdr.pyu what# s c C sY t | d � �D } | j d � } x' t D] } | | | � } | r( | Sq( Wd SWd QXd S( u Recognize sound headers.u rbi N( u openu readu testsu None( u filenameu fu hu tfu res( ( u+ /opt/alt/python33/lib64/python3.3/sndhdr.pyu whathdr) s c C s� d d l } | j d � s d S| d d � d k r> d } n# | d d � d k r] d } n d S| j d � y | j | d � } Wn t | j f k r� d SYn X| | j � | j � | j � d | j � f S( Ni s FORMi i s AIFCu aifcs AIFFu aiffu r( u aifcu startswithu Noneu seeku openu EOFErroru Erroru getframerateu getnchannelsu getnframesu getsampwidth( u hu fu aifcu fmtu a( ( u+ /opt/alt/python33/lib64/python3.3/sndhdr.pyu test_aifc: s u test_aifcc C s6 | j d � r t } n# | d d � d k r7 t } n d Sd } | | d d � � } | | d d � � } | | d d � � } | | d d � � } | | d d � � } d } | d k r� d } n6 | d k r� d } n! | d k r� d } d } n d } | | } | r | | } n d } | | | | | f S( Ns .sndi s ds.s dns.u aui i i i i i u Ui i u ?( s ds.s dns.i����( u startswithu get_long_beu get_long_leu None( u hu fu funcu filetypeu hdr_sizeu data_sizeu encodingu rateu nchannelsu sample_sizeu sample_bitsu frame_sizeu nframe( ( u+ /opt/alt/python33/lib64/python3.3/sndhdr.pyu test_auO s2 u test_auc C sr | d d � d k s, | d d � d k r0 d St | d d � � } | rY d | } n d } d | d d d f S( NiA iE s FSSDi� i� s HCOMi� i� i"V i u hcomi i i����( u Noneu get_long_be( u hu fu divisoru rate( ( u+ /opt/alt/python33/lib64/python3.3/sndhdr.pyu test_hcomp s , u test_hcomc C s� | j d � s d St | d d � � } d } d | k oF d k n r� | | d k r� d | | d } | r� t d | � } q� n d | d d d f S( Ns Creative Voice Filei i i i� i i i g ��.Au voci i����( u startswithu Noneu get_short_leu int( u hu fu sbseeku rateu ratecode( ( u+ /opt/alt/python33/lib64/python3.3/sndhdr.pyu test_voc} s ,u test_vocc C s� | j d � s< | d d � d k s< | d d � d k r@ d St | d d � � } t | d d � � } t | d d � � } t | d d � � } d | | d | f S( Ns RIFFi i s WAVEi s fmt i i i i i" i$ u wavi i����( u startswithu Noneu get_short_leu get_long_le( u hu fu styleu nchannelsu rateu sample_bits( ( u+ /opt/alt/python33/lib64/python3.3/sndhdr.pyu test_wav� s <u test_wavc C s. | j d � s& | d d � d k r* d Sd S( Ns FORMi i s 8SVXu 8svxi i ( u 8svxi i i i ( u startswithu None( u hu f( ( u+ /opt/alt/python33/lib64/python3.3/sndhdr.pyu test_8svx� s &u test_8svxc C sR | j d � rN t | d d � � } t | d d � � } d | d | d f Sd S( Ns SOUNDi i i i u sndti ( u startswithu get_long_leu get_short_le( u hu fu nsamplesu rate( ( u+ /opt/alt/python33/lib64/python3.3/sndhdr.pyu test_sndt� s u test_sndtc C s[ | j d � rW t | d d � � } d | k o< d k n rW d | d d d f Sn d S( Ns i i i� i�a u sndri i i����( u startswithu get_short_le( u hu fu rate( ( u+ /opt/alt/python33/lib64/python3.3/sndhdr.pyu test_sndr� s u test_sndrc C s, | d d >| d d >B| d d >B| d BS( Ni i i i i i i ( ( u b( ( u+ /opt/alt/python33/lib64/python3.3/sndhdr.pyu get_long_be� s u get_long_bec C s, | d d >| d d >B| d d >B| d BS( Ni i i i i i i ( ( u b( ( u+ /opt/alt/python33/lib64/python3.3/sndhdr.pyu get_long_le� s u get_long_lec C s | d d >| d BS( Ni i i ( ( u b( ( u+ /opt/alt/python33/lib64/python3.3/sndhdr.pyu get_short_be� s u get_short_bec C s | d d >| d BS( Ni i i ( ( u b( ( u+ /opt/alt/python33/lib64/python3.3/sndhdr.pyu get_short_le� s u get_short_lec C s� d d l } d } | j d d � rQ | j d d k rQ | j d d � =d } n yJ | j d d � r� t | j d d � | d � n t d g | d � Wn/ t k r� | j j d � | j d � Yn Xd S( Ni i u -ri u .u [Interrupted] ( u sysu argvu testallu KeyboardInterruptu stderru writeu exit( u sysu recursive( ( u+ /opt/alt/python33/lib64/python3.3/sndhdr.pyu test� s & u testc C s d d l } d d l } x� | D]� } | j j | � r� t | d d d �| sW | r� t d � d d l } | j | j j | d � � } t | | d � q� t d � q t | d d d �| j j � y t t | � � Wq t k r� t d � Yq Xq Wd S( Ni u /:u endu u recursing down:u *u *** directory (use -r) ***u :u *** not found ***( u sysu osu pathu isdiru printu globu joinu testallu stdoutu flushu whatu IOError( u listu recursiveu toplevelu sysu osu filenameu globu names( ( u+ /opt/alt/python33/lib64/python3.3/sndhdr.pyu testall� s" u testallu __main__N( u __doc__u __all__u whatu whathdru testsu test_aifcu appendu test_auu test_hcomu test_vocu test_wavu test_8svxu test_sndtu test_sndru get_long_beu get_long_leu get_short_beu get_short_leu testu testallu __name__( ( ( u+ /opt/alt/python33/lib64/python3.3/sndhdr.pyu <module> s8
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