o 2wÖiã@sPddlZddlZddlZGdd„dƒZGdd„dejƒZ     d dd „ZdS) éNc@s.eZdZdZd deddfdd„Zd dd „ZdS) ÚHdf5MemoryIssueFixa£ Use this class to limit the growing memory use when reading from HDF5 files. It should be instantiated within the dataloading worker, i.e., the best place is likely inside the PyTorch Dataset class. Every time a new batch/example is returned, call ``.update()``. Once per ``reset_interval`` updates, this object will close all open HDF5 file handles, which seems to limit the memory use. édÚreset_intervalÚreturnNcCsd|_||_dS)Nr)Úcounterr)Úselfr©rúO/home/ubuntu/sommelier/.venv/lib/python3.10/site-packages/lhotse/workarounds.pyÚ__init__s zHdf5MemoryIssueFix.__init__cCsDddlm}|jdkr|j|jdkr|ƒd|_|jd7_dS)Nr)Úclose_cached_file_handlesé)Úlhotser rr)rr rrr Úupdates zHdf5MemoryIssueFix.update)r)rN)Ú__name__Ú __module__Ú __qualname__Ú__doc__Úintr rrrrr rs rc@seZdZdZddd„ZdS)Ú AltGzipFilea- This is a workaround for Python's stdlib gzip module not implementing gzip decompression correctly... Command-line gzip is able to discard "trailing garbage" in gzipped files, but Python's gzip is not. Original source: https://gist.github.com/nczeczulin/474ffbf6a0ab67276a62 éÿÿÿÿc Cs¨g}z0|dkr | ¡}|sn| |¡qn|dkr1| |¡}|s"n|t|ƒ8}| |¡|dksWntyN}z|rCt|ƒ d¡sD‚WYd}~nd}~wwd |¡S)NrTzNot a gzipped fileó)Úread1ÚappendÚlenÚOSErrorÚstrÚ startswithÚjoin)rÚsizeÚchunksÚchunkÚerrr Úread)s2 ü   û€ ÿ€ÿ zAltGzipFile.readN)r)rrrrr"rrrr rs rÚrbé cCsÄd|vrd|vrtd|fƒ‚n|durtdƒ‚|dur tdƒ‚|dur(tdƒ‚| dd¡}t|tttjfƒr>t|||ƒ}nt|d ƒsHt|d ƒrPtd|||ƒ}nt d ƒ‚d|vr`t   ||||¡S|S) aOpen a gzip-compressed file in binary or text mode. The filename argument can be an actual filename (a str or bytes object), or an existing file object to read from or write to. The mode argument can be "r", "rb", "w", "wb", "x", "xb", "a" or "ab" for binary mode, or "rt", "wt", "xt" or "at" for text mode. The default mode is "rb", and the default compresslevel is 9. For binary mode, this function is equivalent to the GzipFile constructor: GzipFile(filename, mode, compresslevel). In this case, the encoding, errors and newline arguments must not be provided. For text mode, a GzipFile object is created, and wrapped in an io.TextIOWrapper instance with the specified encoding, error handling behavior, and line ending(s). Note: This method is copied from Python's 3.7 stdlib, and patched to handle "trailing garbage" in gzip files. We could monkey-patch the stdlib version, but we imagine that some users prefer third-party libraries like Lhotse not to do such things. ÚtÚbzInvalid mode: %rNz0Argument 'encoding' not supported in binary modez.Argument 'errors' not supported in binary modez/Argument 'newline' not supported in binary modeÚr"Úwritez1filename must be a str or bytes object, or a file) Ú ValueErrorÚreplaceÚ isinstancerÚbytesÚosÚPathLikerÚhasattrÚ TypeErrorÚioÚ TextIOWrapper)ÚfilenameÚmodeÚ compresslevelÚencodingÚerrorsÚnewlineÚgz_modeÚ binary_filerrr Úgzip_open_robustAs&ÿ r;)r#r$NNN)Úgzipr1r-rÚGzipFilerr;rrrr Ús$ú