o 9ήc;.@s\ddlmZddlZddlmZddlmZmZddl m Z m Z dd Z Gd d d e Z dS) )PathN)known_extensions)InitializationErrorIOMode)ImagePropertiesPluginV3cCs,|jdkr t}|S|jdkrt}|Sd}|S)NFFMPEGzGIF-PILr)_nameEllipsis)formatindexrI/tmp/pip-target-vg8gfxp4/lib/python/imageio/core/legacy_plugin_wrapper.py_legacy_default_index s  rc@seZdZdZddZddZdddd Zd d Zddd d dZddZ dddZ ddddZ dde fddZ dddZdS) LegacyPluginaA plugin to make old (v2.9) plugins compatible with v3.0 .. depreciated:: 2.9 `legacy_get_reader` will be removed in a future version of imageio. `legacy_get_writer` will be removed in a future version of imageio. This plugin is a wrapper around the old FormatManager class and exposes all the old plugins via the new API. On top of this it has ``legacy_get_reader`` and ``legacy_get_writer`` methods to allow using it with the v2.9 API. Methods ------- read(index=None, **kwargs) Read the image at position ``index``. write(image, **kwargs) Write image to the URI. iter(**kwargs) Iteratively yield images from the given URI. get_meta(index=None) Return the metadata for the image at position ``index``. legacy_get_reader(**kwargs) Returns the v2.9 image reader. (depreciated) legacy_get_writer(**kwargs) Returns the v2.9 image writer. (depreciated) Examples -------- >>> import imageio.v3 as iio >>> with iio.imopen("/path/to/image.tiff", "r", legacy_mode=True) as file: >>> reader = file.legacy_get_reader() # depreciated >>> for im in file.iter(): >>> print(im.shape) cCs||_||_t|jjtrdn|jj}|jjjtjkr0|j |s.t d|jj d|ddS|j |sCt d|jj d|ddS)auInstantiate a new Legacy Plugin Parameters ---------- uri : {str, pathlib.Path, bytes, file} The resource to load the image from, e.g. a filename, pathlib.Path, http address or file object, see the docs for more info. legacy_plugin : Format The (legacy) format to use to interface with the URI. z`z` can not read ``.z` can not write to `N) _request_format isinstanceraw_uribytesmodeio_moderreadcan_readrname can_write)selfrequest legacy_pluginsourcerrr__init__;s"    zLegacyPlugin.__init__cKsp||j_z t|jjsJWntyYnty!Ynw|j|jS|j d|j|jS)a9legacy_get_reader(**kwargs) a utility method to provide support vor the V2.9 API Parameters ---------- kwargs : ... Further keyword arguments are passed to the reader. See :func:`.help` to see what arguments are available for a particular format. r) r_kwargsrfilenameis_dirOSErrorAssertionErrorr get_readerget_fileseekr kwargsrrrlegacy_get_readerZs   zLegacyPlugin.legacy_get_readerNrcKsX|dur t|j}|turtdd|jdi|D}|S|jdi|}||S)a Parses the given URI and creates a ndarray from it. Parameters ---------- index : {integer, None} If the URI contains a list of ndimages return the index-th image. If None, stack all images into an ndimage along the 0-th dimension (equivalent to np.stack(imgs, axis=0)). kwargs : ... Further keyword arguments are passed to the reader. See :func:`.help` to see what arguments are available for a particular format. Returns ------- ndimage : np.ndarray A numpy array containing the decoded image data. NcSsg|]}|qSrr).0imrrr sz%LegacyPlugin.read..r)rrr npstackiterr/get_data)r rr.imgreaderrrrrvs   zLegacyPlugin.readcKs||j_|j|jS)aslegacy_get_writer(**kwargs) Returns a :class:`.Writer` object which can be used to write data and meta data to the specified file. Parameters ---------- kwargs : ... Further keyword arguments are passed to the writer. See :func:`.help` to see what arguments are available for a particular format. )rr%r get_writerr-rrrlegacy_get_writerszLegacyPlugin.legacy_get_writer)is_batchmetadatac KsT|s t|ttfr nR|dur|g}nJt|}|j}t|dd}|jdkr4|jddkr4t|dd}t |j j t}|D]}|j j |jvrT|jrTt|dd}nq?|dkr\|g}|jd i|9}|D].} t| } | jdkrwtdt| jtjst| jtstd | jd || |qgWd n1swY|jS) aI Write an ndimage to the URI specified in path. If the URI points to a file on the current host and the file does not yet exist it will be created. If the file exists already, it will be appended if possible; otherwise, it will be replaced. Parameters ---------- ndimage : numpy.ndarray The ndimage or list of ndimages to write. is_batch : bool If True, treat the supplied ndimage as a batch of images. If False, treat the supplied ndimage as a single image. If None, try to determine ``is_batch`` from the ndimage's shape and ndim. metadata : dict The metadata passed to write alongside the image. kwargs : ... Further keyword arguments are passed to the writer. See :func:`.help` to see what arguments are available for a particular format. Returns ------- buffer : bytes When writing to the special target "", this function will return the encoded image data as a bytes string. Otherwise it returns None. Notes ----- Automatically determining ``is_batch`` may fail for some images due to shape aliasing. For example, it may classify a channel-first color image as a batch of gray images. In most cases this automatic deduction works fine (it has for almost a decade), but if you do have one of those edge cases (or are worried that you might) consider explicitly setting ``is_batch``. Frrrz4The image must have at least two spatial dimensions.z(All images have to be numeric, and not `rNr)rlisttupler4 asanyarrayndimmaxshapergetr extensionrrpriorityvolume_supportr; ValueError issubdtypedtypenumberbool append_datar! get_result) r ndimager<r=r. batch_dims ext_infosext_infowriterimagerrrwritesD*     zLegacyPlugin.writecks&|jdi|}|D]}|Vq dS)aIterate over a list of ndimages given by the URI Parameters ---------- kwargs : ... Further keyword arguments are passed to the reader. See :func:`.help` to see what arguments are available for a particular format. Nr)r/)r r.r9rWrrrr6s  zLegacyPlugin.itercCs@|dur t|j}|j|d}t|j|j|durddSddS)aStandardized ndimage metadata. Parameters ---------- index : int The index of the ndimage for which to return properties. If the index is out of bounds a ``ValueError`` is raised. If ``None``, return the properties for the ndimage stack. If this is impossible, e.g., due to shape missmatch, an exception will be raised. Returns ------- properties : ImageProperties A dataclass filled with standardized image metadata. Nr0TF)rFrMr<)rrrrrFrM)r rrWrrr propertiess   zLegacyPlugin.propertiescCs|j|ddS)aRead ndimage metadata from the URI Parameters ---------- index : {integer, None} If the URI contains a list of ndimages return the metadata corresponding to the index-th image. If None, behavior depends on the used api Legacy-style API: return metadata of the first element (index=0) New-style API: Behavior depends on the used Plugin. Returns ------- metadata : dict A dictionary of metadata. F)rexclude_applied)r=)r rrrrget_meta.szLegacyPlugin.get_metaTrZcCs"|dur t|j}|j|dS)aGFormat-Specific ndimage metadata. Parameters ---------- index : int The index of the ndimage to read. If the index is out of bounds a ``ValueError`` is raised. If ``None``, global metadata is returned. exclude_applied : bool This parameter exists for compatibility and has no effect. Legacy plugins always report all metadata they find. Returns ------- metadata : dict A dictionary filled with format-specific metadata fields and their values. Nr0)rrr/ get_meta_data)r rrZrrrr=Ds zLegacyPlugin.metadatareturncCsdSNr)r rrr__del__]szLegacyPlugin.__del__r^)NT)r]N)__name__ __module__ __qualname____doc__r$r/rr;rXr6rYr[rOr=r_rrrrrs% Z r)pathlibrnumpyr4configrr!rr v3_plugin_apirr rrrrrrs