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Diffstat (limited to 'env/lib/python3.10/site-packages/PIL/MpoImagePlugin.py')
| -rw-r--r-- | env/lib/python3.10/site-packages/PIL/MpoImagePlugin.py | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/env/lib/python3.10/site-packages/PIL/MpoImagePlugin.py b/env/lib/python3.10/site-packages/PIL/MpoImagePlugin.py deleted file mode 100644 index 5bfd8ef..0000000 --- a/env/lib/python3.10/site-packages/PIL/MpoImagePlugin.py +++ /dev/null @@ -1,181 +0,0 @@ -# -# The Python Imaging Library. -# $Id$ -# -# MPO file handling -# -# See "Multi-Picture Format" (CIPA DC-007-Translation 2009, Standard of the -# Camera & Imaging Products Association) -# -# The multi-picture object combines multiple JPEG images (with a modified EXIF -# data format) into a single file. While it can theoretically be used much like -# a GIF animation, it is commonly used to represent 3D photographs and is (as -# of this writing) the most commonly used format by 3D cameras. -# -# History: -# 2014-03-13 Feneric Created -# -# See the README file for information on usage and redistribution. -# - -import itertools -import os -import struct - -from . import Image, ImageFile, ImageSequence, JpegImagePlugin, TiffImagePlugin -from ._binary import i16be as i16 -from ._binary import o32le - -# def _accept(prefix): -# return JpegImagePlugin._accept(prefix) - - -def _save(im, fp, filename): - JpegImagePlugin._save(im, fp, filename) - - -def _save_all(im, fp, filename): - append_images = im.encoderinfo.get("append_images", []) - if not append_images: - try: - animated = im.is_animated - except AttributeError: - animated = False - if not animated: - _save(im, fp, filename) - return - - offsets = [] - for imSequence in itertools.chain([im], append_images): - for im_frame in ImageSequence.Iterator(imSequence): - if not offsets: - # APP2 marker - im.encoderinfo["extra"] = ( - b"\xFF\xE2" + struct.pack(">H", 6 + 70) + b"MPF\0" + b" " * 70 - ) - JpegImagePlugin._save(im_frame, fp, filename) - offsets.append(fp.tell()) - else: - im_frame.save(fp, "JPEG") - offsets.append(fp.tell() - offsets[-1]) - - ifd = TiffImagePlugin.ImageFileDirectory_v2() - ifd[0xB001] = len(offsets) - - mpentries = b"" - data_offset = 0 - for i, size in enumerate(offsets): - if i == 0: - mptype = 0x030000 # Baseline MP Primary Image - else: - mptype = 0x000000 # Undefined - mpentries += struct.pack("<LLLHH", mptype, size, data_offset, 0, 0) - if i == 0: - data_offset -= 28 - data_offset += size - ifd[0xB002] = mpentries - - fp.seek(28) - fp.write(b"II\x2A\x00" + o32le(8) + ifd.tobytes(8)) - fp.seek(0, os.SEEK_END) - - -## -# Image plugin for MPO images. - - -class MpoImageFile(JpegImagePlugin.JpegImageFile): - - format = "MPO" - format_description = "MPO (CIPA DC-007)" - _close_exclusive_fp_after_loading = False - - def _open(self): - self.fp.seek(0) # prep the fp in order to pass the JPEG test - JpegImagePlugin.JpegImageFile._open(self) - self._after_jpeg_open() - - def _after_jpeg_open(self, mpheader=None): - self._initial_size = self.size - self.mpinfo = mpheader if mpheader is not None else self._getmp() - self.n_frames = self.mpinfo[0xB001] - self.__mpoffsets = [ - mpent["DataOffset"] + self.info["mpoffset"] for mpent in self.mpinfo[0xB002] - ] - self.__mpoffsets[0] = 0 - # Note that the following assertion will only be invalid if something - # gets broken within JpegImagePlugin. - assert self.n_frames == len(self.__mpoffsets) - del self.info["mpoffset"] # no longer needed - self.is_animated = self.n_frames > 1 - self._fp = self.fp # FIXME: hack - self._fp.seek(self.__mpoffsets[0]) # get ready to read first frame - self.__frame = 0 - self.offset = 0 - # for now we can only handle reading and individual frame extraction - self.readonly = 1 - - def load_seek(self, pos): - self._fp.seek(pos) - - def seek(self, frame): - if not self._seek_check(frame): - return - self.fp = self._fp - self.offset = self.__mpoffsets[frame] - - self.fp.seek(self.offset + 2) # skip SOI marker - segment = self.fp.read(2) - if not segment: - raise ValueError("No data found for frame") - self._size = self._initial_size - if i16(segment) == 0xFFE1: # APP1 - n = i16(self.fp.read(2)) - 2 - self.info["exif"] = ImageFile._safe_read(self.fp, n) - self._reload_exif() - - mptype = self.mpinfo[0xB002][frame]["Attribute"]["MPType"] - if mptype.startswith("Large Thumbnail"): - exif = self.getexif().get_ifd(0x8769) - if 40962 in exif and 40963 in exif: - self._size = (exif[40962], exif[40963]) - elif "exif" in self.info: - del self.info["exif"] - self._reload_exif() - - self.tile = [("jpeg", (0, 0) + self.size, self.offset, (self.mode, ""))] - self.__frame = frame - - def tell(self): - return self.__frame - - @staticmethod - def adopt(jpeg_instance, mpheader=None): - """ - Transform the instance of JpegImageFile into - an instance of MpoImageFile. - After the call, the JpegImageFile is extended - to be an MpoImageFile. - - This is essentially useful when opening a JPEG - file that reveals itself as an MPO, to avoid - double call to _open. - """ - jpeg_instance.__class__ = MpoImageFile - jpeg_instance._after_jpeg_open(mpheader) - return jpeg_instance - - -# --------------------------------------------------------------------- -# Registry stuff - -# Note that since MPO shares a factory with JPEG, we do not need to do a -# separate registration for it here. -# Image.register_open(MpoImageFile.format, -# JpegImagePlugin.jpeg_factory, _accept) -Image.register_save(MpoImageFile.format, _save) -Image.register_save_all(MpoImageFile.format, _save_all) - -Image.register_extension(MpoImageFile.format, ".mpo") - -Image.register_mime(MpoImageFile.format, "image/mpo") |