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1 files changed, 0 insertions, 827 deletions

diff --git a/env/lib/python3.10/site-packages/PIL/JpegImagePlugin.py b/env/lib/python3.10/site-packages/PIL/JpegImagePlugin.py
deleted file mode 100644
index a6ed223..0000000
--- a/env/lib/python3.10/site-packages/PIL/JpegImagePlugin.py
+++ /dev/null
@@ -1,827 +0,0 @@
-#
-# The Python Imaging Library.
-# $Id$
-#
-# JPEG (JFIF) file handling
-#
-# See "Digital Compression and Coding of Continuous-Tone Still Images,
-# Part 1, Requirements and Guidelines" (CCITT T.81 / ISO 10918-1)
-#
-# History:
-# 1995-09-09 fl   Created
-# 1995-09-13 fl   Added full parser
-# 1996-03-25 fl   Added hack to use the IJG command line utilities
-# 1996-05-05 fl   Workaround Photoshop 2.5 CMYK polarity bug
-# 1996-05-28 fl   Added draft support, JFIF version (0.1)
-# 1996-12-30 fl   Added encoder options, added progression property (0.2)
-# 1997-08-27 fl   Save mode 1 images as BW (0.3)
-# 1998-07-12 fl   Added YCbCr to draft and save methods (0.4)
-# 1998-10-19 fl   Don't hang on files using 16-bit DQT's (0.4.1)
-# 2001-04-16 fl   Extract DPI settings from JFIF files (0.4.2)
-# 2002-07-01 fl   Skip pad bytes before markers; identify Exif files (0.4.3)
-# 2003-04-25 fl   Added experimental EXIF decoder (0.5)
-# 2003-06-06 fl   Added experimental EXIF GPSinfo decoder
-# 2003-09-13 fl   Extract COM markers
-# 2009-09-06 fl   Added icc_profile support (from Florian Hoech)
-# 2009-03-06 fl   Changed CMYK handling; always use Adobe polarity (0.6)
-# 2009-03-08 fl   Added subsampling support (from Justin Huff).
-#
-# Copyright (c) 1997-2003 by Secret Labs AB.
-# Copyright (c) 1995-1996 by Fredrik Lundh.
-#
-# See the README file for information on usage and redistribution.
-#
-import array
-import io
-import math
-import os
-import struct
-import subprocess
-import sys
-import tempfile
-import warnings
-
-from . import Image, ImageFile, TiffImagePlugin
-from ._binary import i16be as i16
-from ._binary import i32be as i32
-from ._binary import o8
-from ._deprecate import deprecate
-from .JpegPresets import presets
-
-#
-# Parser
-
-
-def Skip(self, marker):
-    n = i16(self.fp.read(2)) - 2
-    ImageFile._safe_read(self.fp, n)
-
-
-def APP(self, marker):
-    #
-    # Application marker.  Store these in the APP dictionary.
-    # Also look for well-known application markers.
-
-    n = i16(self.fp.read(2)) - 2
-    s = ImageFile._safe_read(self.fp, n)
-
-    app = "APP%d" % (marker & 15)
-
-    self.app[app] = s  # compatibility
-    self.applist.append((app, s))
-
-    if marker == 0xFFE0 and s[:4] == b"JFIF":
-        # extract JFIF information
-        self.info["jfif"] = version = i16(s, 5)  # version
-        self.info["jfif_version"] = divmod(version, 256)
-        # extract JFIF properties
-        try:
-            jfif_unit = s[7]
-            jfif_density = i16(s, 8), i16(s, 10)
-        except Exception:
-            pass
-        else:
-            if jfif_unit == 1:
-                self.info["dpi"] = jfif_density
-            self.info["jfif_unit"] = jfif_unit
-            self.info["jfif_density"] = jfif_density
-    elif marker == 0xFFE1 and s[:5] == b"Exif\0":
-        if "exif" not in self.info:
-            # extract EXIF information (incomplete)
-            self.info["exif"] = s  # FIXME: value will change
-    elif marker == 0xFFE2 and s[:5] == b"FPXR\0":
-        # extract FlashPix information (incomplete)
-        self.info["flashpix"] = s  # FIXME: value will change
-    elif marker == 0xFFE2 and s[:12] == b"ICC_PROFILE\0":
-        # Since an ICC profile can be larger than the maximum size of
-        # a JPEG marker (64K), we need provisions to split it into
-        # multiple markers. The format defined by the ICC specifies
-        # one or more APP2 markers containing the following data:
-        #   Identifying string      ASCII "ICC_PROFILE\0"  (12 bytes)
-        #   Marker sequence number  1, 2, etc (1 byte)
-        #   Number of markers       Total of APP2's used (1 byte)
-        #   Profile data            (remainder of APP2 data)
-        # Decoders should use the marker sequence numbers to
-        # reassemble the profile, rather than assuming that the APP2
-        # markers appear in the correct sequence.
-        self.icclist.append(s)
-    elif marker == 0xFFED and s[:14] == b"Photoshop 3.0\x00":
-        # parse the image resource block
-        offset = 14
-        photoshop = self.info.setdefault("photoshop", {})
-        while s[offset : offset + 4] == b"8BIM":
-            try:
-                offset += 4
-                # resource code
-                code = i16(s, offset)
-                offset += 2
-                # resource name (usually empty)
-                name_len = s[offset]
-                # name = s[offset+1:offset+1+name_len]
-                offset += 1 + name_len
-                offset += offset & 1  # align
-                # resource data block
-                size = i32(s, offset)
-                offset += 4
-                data = s[offset : offset + size]
-                if code == 0x03ED:  # ResolutionInfo
-                    data = {
-                        "XResolution": i32(data, 0) / 65536,
-                        "DisplayedUnitsX": i16(data, 4),
-                        "YResolution": i32(data, 8) / 65536,
-                        "DisplayedUnitsY": i16(data, 12),
-                    }
-                photoshop[code] = data
-                offset += size
-                offset += offset & 1  # align
-            except struct.error:
-                break  # insufficient data
-
-    elif marker == 0xFFEE and s[:5] == b"Adobe":
-        self.info["adobe"] = i16(s, 5)
-        # extract Adobe custom properties
-        try:
-            adobe_transform = s[11]
-        except IndexError:
-            pass
-        else:
-            self.info["adobe_transform"] = adobe_transform
-    elif marker == 0xFFE2 and s[:4] == b"MPF\0":
-        # extract MPO information
-        self.info["mp"] = s[4:]
-        # offset is current location minus buffer size
-        # plus constant header size
-        self.info["mpoffset"] = self.fp.tell() - n + 4
-
-    # If DPI isn't in JPEG header, fetch from EXIF
-    if "dpi" not in self.info and "exif" in self.info:
-        try:
-            exif = self.getexif()
-            resolution_unit = exif[0x0128]
-            x_resolution = exif[0x011A]
-            try:
-                dpi = float(x_resolution[0]) / x_resolution[1]
-            except TypeError:
-                dpi = x_resolution
-            if math.isnan(dpi):
-                raise ValueError
-            if resolution_unit == 3:  # cm
-                # 1 dpcm = 2.54 dpi
-                dpi *= 2.54
-            self.info["dpi"] = dpi, dpi
-        except (TypeError, KeyError, SyntaxError, ValueError, ZeroDivisionError):
-            # SyntaxError for invalid/unreadable EXIF
-            # KeyError for dpi not included
-            # ZeroDivisionError for invalid dpi rational value
-            # ValueError or TypeError for dpi being an invalid float
-            self.info["dpi"] = 72, 72
-
-
-def COM(self, marker):
-    #
-    # Comment marker.  Store these in the APP dictionary.
-    n = i16(self.fp.read(2)) - 2
-    s = ImageFile._safe_read(self.fp, n)
-
-    self.info["comment"] = s
-    self.app["COM"] = s  # compatibility
-    self.applist.append(("COM", s))
-
-
-def SOF(self, marker):
-    #
-    # Start of frame marker.  Defines the size and mode of the
-    # image.  JPEG is colour blind, so we use some simple
-    # heuristics to map the number of layers to an appropriate
-    # mode.  Note that this could be made a bit brighter, by
-    # looking for JFIF and Adobe APP markers.
-
-    n = i16(self.fp.read(2)) - 2
-    s = ImageFile._safe_read(self.fp, n)
-    self._size = i16(s, 3), i16(s, 1)
-
-    self.bits = s[0]
-    if self.bits != 8:
-        raise SyntaxError(f"cannot handle {self.bits}-bit layers")
-
-    self.layers = s[5]
-    if self.layers == 1:
-        self.mode = "L"
-    elif self.layers == 3:
-        self.mode = "RGB"
-    elif self.layers == 4:
-        self.mode = "CMYK"
-    else:
-        raise SyntaxError(f"cannot handle {self.layers}-layer images")
-
-    if marker in [0xFFC2, 0xFFC6, 0xFFCA, 0xFFCE]:
-        self.info["progressive"] = self.info["progression"] = 1
-
-    if self.icclist:
-        # fixup icc profile
-        self.icclist.sort()  # sort by sequence number
-        if self.icclist[0][13] == len(self.icclist):
-            profile = []
-            for p in self.icclist:
-                profile.append(p[14:])
-            icc_profile = b"".join(profile)
-        else:
-            icc_profile = None  # wrong number of fragments
-        self.info["icc_profile"] = icc_profile
-        self.icclist = []
-
-    for i in range(6, len(s), 3):
-        t = s[i : i + 3]
-        # 4-tuples: id, vsamp, hsamp, qtable
-        self.layer.append((t[0], t[1] // 16, t[1] & 15, t[2]))
-
-
-def DQT(self, marker):
-    #
-    # Define quantization table.  Note that there might be more
-    # than one table in each marker.
-
-    # FIXME: The quantization tables can be used to estimate the
-    # compression quality.
-
-    n = i16(self.fp.read(2)) - 2
-    s = ImageFile._safe_read(self.fp, n)
-    while len(s):
-        v = s[0]
-        precision = 1 if (v // 16 == 0) else 2  # in bytes
-        qt_length = 1 + precision * 64
-        if len(s) < qt_length:
-            raise SyntaxError("bad quantization table marker")
-        data = array.array("B" if precision == 1 else "H", s[1:qt_length])
-        if sys.byteorder == "little" and precision > 1:
-            data.byteswap()  # the values are always big-endian
-        self.quantization[v & 15] = [data[i] for i in zigzag_index]
-        s = s[qt_length:]
-
-
-#
-# JPEG marker table
-
-MARKER = {
-    0xFFC0: ("SOF0", "Baseline DCT", SOF),
-    0xFFC1: ("SOF1", "Extended Sequential DCT", SOF),
-    0xFFC2: ("SOF2", "Progressive DCT", SOF),
-    0xFFC3: ("SOF3", "Spatial lossless", SOF),
-    0xFFC4: ("DHT", "Define Huffman table", Skip),
-    0xFFC5: ("SOF5", "Differential sequential DCT", SOF),
-    0xFFC6: ("SOF6", "Differential progressive DCT", SOF),
-    0xFFC7: ("SOF7", "Differential spatial", SOF),
-    0xFFC8: ("JPG", "Extension", None),
-    0xFFC9: ("SOF9", "Extended sequential DCT (AC)", SOF),
-    0xFFCA: ("SOF10", "Progressive DCT (AC)", SOF),
-    0xFFCB: ("SOF11", "Spatial lossless DCT (AC)", SOF),
-    0xFFCC: ("DAC", "Define arithmetic coding conditioning", Skip),
-    0xFFCD: ("SOF13", "Differential sequential DCT (AC)", SOF),
-    0xFFCE: ("SOF14", "Differential progressive DCT (AC)", SOF),
-    0xFFCF: ("SOF15", "Differential spatial (AC)", SOF),
-    0xFFD0: ("RST0", "Restart 0", None),
-    0xFFD1: ("RST1", "Restart 1", None),
-    0xFFD2: ("RST2", "Restart 2", None),
-    0xFFD3: ("RST3", "Restart 3", None),
-    0xFFD4: ("RST4", "Restart 4", None),
-    0xFFD5: ("RST5", "Restart 5", None),
-    0xFFD6: ("RST6", "Restart 6", None),
-    0xFFD7: ("RST7", "Restart 7", None),
-    0xFFD8: ("SOI", "Start of image", None),
-    0xFFD9: ("EOI", "End of image", None),
-    0xFFDA: ("SOS", "Start of scan", Skip),
-    0xFFDB: ("DQT", "Define quantization table", DQT),
-    0xFFDC: ("DNL", "Define number of lines", Skip),
-    0xFFDD: ("DRI", "Define restart interval", Skip),
-    0xFFDE: ("DHP", "Define hierarchical progression", SOF),
-    0xFFDF: ("EXP", "Expand reference component", Skip),
-    0xFFE0: ("APP0", "Application segment 0", APP),
-    0xFFE1: ("APP1", "Application segment 1", APP),
-    0xFFE2: ("APP2", "Application segment 2", APP),
-    0xFFE3: ("APP3", "Application segment 3", APP),
-    0xFFE4: ("APP4", "Application segment 4", APP),
-    0xFFE5: ("APP5", "Application segment 5", APP),
-    0xFFE6: ("APP6", "Application segment 6", APP),
-    0xFFE7: ("APP7", "Application segment 7", APP),
-    0xFFE8: ("APP8", "Application segment 8", APP),
-    0xFFE9: ("APP9", "Application segment 9", APP),
-    0xFFEA: ("APP10", "Application segment 10", APP),
-    0xFFEB: ("APP11", "Application segment 11", APP),
-    0xFFEC: ("APP12", "Application segment 12", APP),
-    0xFFED: ("APP13", "Application segment 13", APP),
-    0xFFEE: ("APP14", "Application segment 14", APP),
-    0xFFEF: ("APP15", "Application segment 15", APP),
-    0xFFF0: ("JPG0", "Extension 0", None),
-    0xFFF1: ("JPG1", "Extension 1", None),
-    0xFFF2: ("JPG2", "Extension 2", None),
-    0xFFF3: ("JPG3", "Extension 3", None),
-    0xFFF4: ("JPG4", "Extension 4", None),
-    0xFFF5: ("JPG5", "Extension 5", None),
-    0xFFF6: ("JPG6", "Extension 6", None),
-    0xFFF7: ("JPG7", "Extension 7", None),
-    0xFFF8: ("JPG8", "Extension 8", None),
-    0xFFF9: ("JPG9", "Extension 9", None),
-    0xFFFA: ("JPG10", "Extension 10", None),
-    0xFFFB: ("JPG11", "Extension 11", None),
-    0xFFFC: ("JPG12", "Extension 12", None),
-    0xFFFD: ("JPG13", "Extension 13", None),
-    0xFFFE: ("COM", "Comment", COM),
-}
-
-
-def _accept(prefix):
-    # Magic number was taken from https://en.wikipedia.org/wiki/JPEG
-    return prefix[:3] == b"\xFF\xD8\xFF"
-
-
-##
-# Image plugin for JPEG and JFIF images.
-
-
-class JpegImageFile(ImageFile.ImageFile):
-
-    format = "JPEG"
-    format_description = "JPEG (ISO 10918)"
-
-    def _open(self):
-
-        s = self.fp.read(3)
-
-        if not _accept(s):
-            raise SyntaxError("not a JPEG file")
-        s = b"\xFF"
-
-        # Create attributes
-        self.bits = self.layers = 0
-
-        # JPEG specifics (internal)
-        self.layer = []
-        self.huffman_dc = {}
-        self.huffman_ac = {}
-        self.quantization = {}
-        self.app = {}  # compatibility
-        self.applist = []
-        self.icclist = []
-
-        while True:
-
-            i = s[0]
-            if i == 0xFF:
-                s = s + self.fp.read(1)
-                i = i16(s)
-            else:
-                # Skip non-0xFF junk
-                s = self.fp.read(1)
-                continue
-
-            if i in MARKER:
-                name, description, handler = MARKER[i]
-                if handler is not None:
-                    handler(self, i)
-                if i == 0xFFDA:  # start of scan
-                    rawmode = self.mode
-                    if self.mode == "CMYK":
-                        rawmode = "CMYK;I"  # assume adobe conventions
-                    self.tile = [("jpeg", (0, 0) + self.size, 0, (rawmode, ""))]
-                    # self.__offset = self.fp.tell()
-                    break
-                s = self.fp.read(1)
-            elif i == 0 or i == 0xFFFF:
-                # padded marker or junk; move on
-                s = b"\xff"
-            elif i == 0xFF00:  # Skip extraneous data (escaped 0xFF)
-                s = self.fp.read(1)
-            else:
-                raise SyntaxError("no marker found")
-
-    def load_read(self, read_bytes):
-        """
-        internal: read more image data
-        For premature EOF and LOAD_TRUNCATED_IMAGES adds EOI marker
-        so libjpeg can finish decoding
-        """
-        s = self.fp.read(read_bytes)
-
-        if not s and ImageFile.LOAD_TRUNCATED_IMAGES and not hasattr(self, "_ended"):
-            # Premature EOF.
-            # Pretend file is finished adding EOI marker
-            self._ended = True
-            return b"\xFF\xD9"
-
-        return s
-
-    def draft(self, mode, size):
-
-        if len(self.tile) != 1:
-            return
-
-        # Protect from second call
-        if self.decoderconfig:
-            return
-
-        d, e, o, a = self.tile[0]
-        scale = 1
-        original_size = self.size
-
-        if a[0] == "RGB" and mode in ["L", "YCbCr"]:
-            self.mode = mode
-            a = mode, ""
-
-        if size:
-            scale = min(self.size[0] // size[0], self.size[1] // size[1])
-            for s in [8, 4, 2, 1]:
-                if scale >= s:
-                    break
-            e = (
-                e[0],
-                e[1],
-                (e[2] - e[0] + s - 1) // s + e[0],
-                (e[3] - e[1] + s - 1) // s + e[1],
-            )
-            self._size = ((self.size[0] + s - 1) // s, (self.size[1] + s - 1) // s)
-            scale = s
-
-        self.tile = [(d, e, o, a)]
-        self.decoderconfig = (scale, 0)
-
-        box = (0, 0, original_size[0] / scale, original_size[1] / scale)
-        return self.mode, box
-
-    def load_djpeg(self):
-
-        # ALTERNATIVE: handle JPEGs via the IJG command line utilities
-
-        f, path = tempfile.mkstemp()
-        os.close(f)
-        if os.path.exists(self.filename):
-            subprocess.check_call(["djpeg", "-outfile", path, self.filename])
-        else:
-            raise ValueError("Invalid Filename")
-
-        try:
-            with Image.open(path) as _im:
-                _im.load()
-                self.im = _im.im
-        finally:
-            try:
-                os.unlink(path)
-            except OSError:
-                pass
-
-        self.mode = self.im.mode
-        self._size = self.im.size
-
-        self.tile = []
-
-    def _getexif(self):
-        return _getexif(self)
-
-    def _getmp(self):
-        return _getmp(self)
-
-    def getxmp(self):
-        """
-        Returns a dictionary containing the XMP tags.
-        Requires defusedxml to be installed.
-
-        :returns: XMP tags in a dictionary.
-        """
-
-        for segment, content in self.applist:
-            if segment == "APP1":
-                marker, xmp_tags = content.rsplit(b"\x00", 1)
-                if marker == b"http://ns.adobe.com/xap/1.0/":
-                    return self._getxmp(xmp_tags)
-        return {}
-
-
-def _getexif(self):
-    if "exif" not in self.info:
-        return None
-    return self.getexif()._get_merged_dict()
-
-
-def _getmp(self):
-    # Extract MP information.  This method was inspired by the "highly
-    # experimental" _getexif version that's been in use for years now,
-    # itself based on the ImageFileDirectory class in the TIFF plugin.
-
-    # The MP record essentially consists of a TIFF file embedded in a JPEG
-    # application marker.
-    try:
-        data = self.info["mp"]
-    except KeyError:
-        return None
-    file_contents = io.BytesIO(data)
-    head = file_contents.read(8)
-    endianness = ">" if head[:4] == b"\x4d\x4d\x00\x2a" else "<"
-    # process dictionary
-    try:
-        info = TiffImagePlugin.ImageFileDirectory_v2(head)
-        file_contents.seek(info.next)
-        info.load(file_contents)
-        mp = dict(info)
-    except Exception as e:
-        raise SyntaxError("malformed MP Index (unreadable directory)") from e
-    # it's an error not to have a number of images
-    try:
-        quant = mp[0xB001]
-    except KeyError as e:
-        raise SyntaxError("malformed MP Index (no number of images)") from e
-    # get MP entries
-    mpentries = []
-    try:
-        rawmpentries = mp[0xB002]
-        for entrynum in range(0, quant):
-            unpackedentry = struct.unpack_from(
-                f"{endianness}LLLHH", rawmpentries, entrynum * 16
-            )
-            labels = ("Attribute", "Size", "DataOffset", "EntryNo1", "EntryNo2")
-            mpentry = dict(zip(labels, unpackedentry))
-            mpentryattr = {
-                "DependentParentImageFlag": bool(mpentry["Attribute"] & (1 << 31)),
-                "DependentChildImageFlag": bool(mpentry["Attribute"] & (1 << 30)),
-                "RepresentativeImageFlag": bool(mpentry["Attribute"] & (1 << 29)),
-                "Reserved": (mpentry["Attribute"] & (3 << 27)) >> 27,
-                "ImageDataFormat": (mpentry["Attribute"] & (7 << 24)) >> 24,
-                "MPType": mpentry["Attribute"] & 0x00FFFFFF,
-            }
-            if mpentryattr["ImageDataFormat"] == 0:
-                mpentryattr["ImageDataFormat"] = "JPEG"
-            else:
-                raise SyntaxError("unsupported picture format in MPO")
-            mptypemap = {
-                0x000000: "Undefined",
-                0x010001: "Large Thumbnail (VGA Equivalent)",
-                0x010002: "Large Thumbnail (Full HD Equivalent)",
-                0x020001: "Multi-Frame Image (Panorama)",
-                0x020002: "Multi-Frame Image: (Disparity)",
-                0x020003: "Multi-Frame Image: (Multi-Angle)",
-                0x030000: "Baseline MP Primary Image",
-            }
-            mpentryattr["MPType"] = mptypemap.get(mpentryattr["MPType"], "Unknown")
-            mpentry["Attribute"] = mpentryattr
-            mpentries.append(mpentry)
-        mp[0xB002] = mpentries
-    except KeyError as e:
-        raise SyntaxError("malformed MP Index (bad MP Entry)") from e
-    # Next we should try and parse the individual image unique ID list;
-    # we don't because I've never seen this actually used in a real MPO
-    # file and so can't test it.
-    return mp
-
-
-# --------------------------------------------------------------------
-# stuff to save JPEG files
-
-RAWMODE = {
-    "1": "L",
-    "L": "L",
-    "RGB": "RGB",
-    "RGBX": "RGB",
-    "CMYK": "CMYK;I",  # assume adobe conventions
-    "YCbCr": "YCbCr",
-}
-
-# fmt: off
-zigzag_index = (
-    0,  1,  5,  6, 14, 15, 27, 28,
-    2,  4,  7, 13, 16, 26, 29, 42,
-    3,  8, 12, 17, 25, 30, 41, 43,
-    9, 11, 18, 24, 31, 40, 44, 53,
-    10, 19, 23, 32, 39, 45, 52, 54,
-    20, 22, 33, 38, 46, 51, 55, 60,
-    21, 34, 37, 47, 50, 56, 59, 61,
-    35, 36, 48, 49, 57, 58, 62, 63,
-)
-
-samplings = {
-    (1, 1, 1, 1, 1, 1): 0,
-    (2, 1, 1, 1, 1, 1): 1,
-    (2, 2, 1, 1, 1, 1): 2,
-}
-# fmt: on
-
-
-def convert_dict_qtables(qtables):
-    deprecate("convert_dict_qtables", 10, action="Conversion is no longer needed")
-    return qtables
-
-
-def get_sampling(im):
-    # There's no subsampling when images have only 1 layer
-    # (grayscale images) or when they are CMYK (4 layers),
-    # so set subsampling to the default value.
-    #
-    # NOTE: currently Pillow can't encode JPEG to YCCK format.
-    # If YCCK support is added in the future, subsampling code will have
-    # to be updated (here and in JpegEncode.c) to deal with 4 layers.
-    if not hasattr(im, "layers") or im.layers in (1, 4):
-        return -1
-    sampling = im.layer[0][1:3] + im.layer[1][1:3] + im.layer[2][1:3]
-    return samplings.get(sampling, -1)
-
-
-def _save(im, fp, filename):
-    if im.width == 0 or im.height == 0:
-        raise ValueError("cannot write empty image as JPEG")
-
-    try:
-        rawmode = RAWMODE[im.mode]
-    except KeyError as e:
-        raise OSError(f"cannot write mode {im.mode} as JPEG") from e
-
-    info = im.encoderinfo
-
-    dpi = [round(x) for x in info.get("dpi", (0, 0))]
-
-    quality = info.get("quality", -1)
-    subsampling = info.get("subsampling", -1)
-    qtables = info.get("qtables")
-
-    if quality == "keep":
-        quality = -1
-        subsampling = "keep"
-        qtables = "keep"
-    elif quality in presets:
-        preset = presets[quality]
-        quality = -1
-        subsampling = preset.get("subsampling", -1)
-        qtables = preset.get("quantization")
-    elif not isinstance(quality, int):
-        raise ValueError("Invalid quality setting")
-    else:
-        if subsampling in presets:
-            subsampling = presets[subsampling].get("subsampling", -1)
-        if isinstance(qtables, str) and qtables in presets:
-            qtables = presets[qtables].get("quantization")
-
-    if subsampling == "4:4:4":
-        subsampling = 0
-    elif subsampling == "4:2:2":
-        subsampling = 1
-    elif subsampling == "4:2:0":
-        subsampling = 2
-    elif subsampling == "4:1:1":
-        # For compatibility. Before Pillow 4.3, 4:1:1 actually meant 4:2:0.
-        # Set 4:2:0 if someone is still using that value.
-        subsampling = 2
-    elif subsampling == "keep":
-        if im.format != "JPEG":
-            raise ValueError("Cannot use 'keep' when original image is not a JPEG")
-        subsampling = get_sampling(im)
-
-    def validate_qtables(qtables):
-        if qtables is None:
-            return qtables
-        if isinstance(qtables, str):
-            try:
-                lines = [
-                    int(num)
-                    for line in qtables.splitlines()
-                    for num in line.split("#", 1)[0].split()
-                ]
-            except ValueError as e:
-                raise ValueError("Invalid quantization table") from e
-            else:
-                qtables = [lines[s : s + 64] for s in range(0, len(lines), 64)]
-        if isinstance(qtables, (tuple, list, dict)):
-            if isinstance(qtables, dict):
-                qtables = [
-                    qtables[key] for key in range(len(qtables)) if key in qtables
-                ]
-            elif isinstance(qtables, tuple):
-                qtables = list(qtables)
-            if not (0 < len(qtables) < 5):
-                raise ValueError("None or too many quantization tables")
-            for idx, table in enumerate(qtables):
-                try:
-                    if len(table) != 64:
-                        raise TypeError
-                    table = array.array("H", table)
-                except TypeError as e:
-                    raise ValueError("Invalid quantization table") from e
-                else:
-                    qtables[idx] = list(table)
-            return qtables
-
-    if qtables == "keep":
-        if im.format != "JPEG":
-            raise ValueError("Cannot use 'keep' when original image is not a JPEG")
-        qtables = getattr(im, "quantization", None)
-    qtables = validate_qtables(qtables)
-
-    extra = info.get("extra", b"")
-
-    icc_profile = info.get("icc_profile")
-    if icc_profile:
-        ICC_OVERHEAD_LEN = 14
-        MAX_BYTES_IN_MARKER = 65533
-        MAX_DATA_BYTES_IN_MARKER = MAX_BYTES_IN_MARKER - ICC_OVERHEAD_LEN
-        markers = []
-        while icc_profile:
-            markers.append(icc_profile[:MAX_DATA_BYTES_IN_MARKER])
-            icc_profile = icc_profile[MAX_DATA_BYTES_IN_MARKER:]
-        i = 1
-        for marker in markers:
-            size = struct.pack(">H", 2 + ICC_OVERHEAD_LEN + len(marker))
-            extra += (
-                b"\xFF\xE2"
-                + size
-                + b"ICC_PROFILE\0"
-                + o8(i)
-                + o8(len(markers))
-                + marker
-            )
-            i += 1
-
-    # "progressive" is the official name, but older documentation
-    # says "progression"
-    # FIXME: issue a warning if the wrong form is used (post-1.1.7)
-    progressive = info.get("progressive", False) or info.get("progression", False)
-
-    optimize = info.get("optimize", False)
-
-    exif = info.get("exif", b"")
-    if isinstance(exif, Image.Exif):
-        exif = exif.tobytes()
-
-    # get keyword arguments
-    im.encoderconfig = (
-        quality,
-        progressive,
-        info.get("smooth", 0),
-        optimize,
-        info.get("streamtype", 0),
-        dpi[0],
-        dpi[1],
-        subsampling,
-        qtables,
-        extra,
-        exif,
-    )
-
-    # if we optimize, libjpeg needs a buffer big enough to hold the whole image
-    # in a shot. Guessing on the size, at im.size bytes. (raw pixel size is
-    # channels*size, this is a value that's been used in a django patch.
-    # https://github.com/matthewwithanm/django-imagekit/issues/50
-    bufsize = 0
-    if optimize or progressive:
-        # CMYK can be bigger
-        if im.mode == "CMYK":
-            bufsize = 4 * im.size[0] * im.size[1]
-        # keep sets quality to -1, but the actual value may be high.
-        elif quality >= 95 or quality == -1:
-            bufsize = 2 * im.size[0] * im.size[1]
-        else:
-            bufsize = im.size[0] * im.size[1]
-
-    # The EXIF info needs to be written as one block, + APP1, + one spare byte.
-    # Ensure that our buffer is big enough. Same with the icc_profile block.
-    bufsize = max(ImageFile.MAXBLOCK, bufsize, len(exif) + 5, len(extra) + 1)
-
-    ImageFile._save(im, fp, [("jpeg", (0, 0) + im.size, 0, rawmode)], bufsize)
-
-
-def _save_cjpeg(im, fp, filename):
-    # ALTERNATIVE: handle JPEGs via the IJG command line utilities.
-    tempfile = im._dump()
-    subprocess.check_call(["cjpeg", "-outfile", filename, tempfile])
-    try:
-        os.unlink(tempfile)
-    except OSError:
-        pass
-
-
-##
-# Factory for making JPEG and MPO instances
-def jpeg_factory(fp=None, filename=None):
-    im = JpegImageFile(fp, filename)
-    try:
-        mpheader = im._getmp()
-        if mpheader[45057] > 1:
-            # It's actually an MPO
-            from .MpoImagePlugin import MpoImageFile
-
-            # Don't reload everything, just convert it.
-            im = MpoImageFile.adopt(im, mpheader)
-    except (TypeError, IndexError):
-        # It is really a JPEG
-        pass
-    except SyntaxError:
-        warnings.warn(
-            "Image appears to be a malformed MPO file, it will be "
-            "interpreted as a base JPEG file"
-        )
-    return im
-
-
-# ---------------------------------------------------------------------
-# Registry stuff
-
-Image.register_open(JpegImageFile.format, jpeg_factory, _accept)
-Image.register_save(JpegImageFile.format, _save)
-
-Image.register_extensions(JpegImageFile.format, [".jfif", ".jpe", ".jpg", ".jpeg"])
-
-Image.register_mime(JpegImageFile.format, "image/jpeg")