try:
im.encoderinfo = params
# local image header
_get_local_header(fp, im, offset, 0)
ImageFile._save(im, fp, [("gif", (0, 0)+im.size, 0, RAWMODE[im.mode])])
fp.write(b"\0") # end of image data
finally:
del im.encoderinfo
return fp.data
# --------------------------------------------------------------------
# Registry
Image.register_open(GifImageFile.format, GifImageFile, _accept)
Image.register_save(GifImageFile.format, _save)
Image.register_save_all(GifImageFile.format, _save_all)
Image.register_extension(GifImageFile.format, ".gif")
Image.register_mime(GifImageFile.format, "image/gif")
#
# Uncomment the following line if you wish to use NETPBM/PBMPLUS
# instead of the built-in "uncompressed" GIF encoder
# Image.register_save(GifImageFile.format, _save_netpbm)
from typing import List
from PIL import Image, ImageFile
# workaround initialization code
from PIL.GifImagePlugin import GifImageFile, _accept, _save, _save_all
class AnimatedGifImageFile(GifImageFile):
def load_end(self):
ImageFile.ImageFile.load_end(self)
Image.register_open(AnimatedGifImageFile.format, AnimatedGifImageFile, _accept)
Image.register_save(AnimatedGifImageFile.format, _save)
Image.register_save_all(AnimatedGifImageFile.format, _save_all)
Image.register_extension(AnimatedGifImageFile.format, ".gif")
Image.register_mime(AnimatedGifImageFile.format, "image/gif")
# end of workaround initialization code
def get_frames(gif: Image.Image) -> List[Image.Image]:
"""
Extract all frames from gif.
This function is just slight adjustment of the for-cycle from the workaround.
"""
last_frame = None
all_frames = []
i = 0
try:
im.encoderinfo = params
# local image header
_get_local_header(fp, im, offset, 0)
ImageFile._save(im, fp, [("gif", (0, 0)+im.size, 0, RAWMODE[im.mode])])
fp.write(b"\0") # end of image data
finally:
del im.encoderinfo
return fp.data
# --------------------------------------------------------------------
# Registry
Image.register_open(GifImageFile.format, GifImageFile, _accept)
Image.register_save(GifImageFile.format, _save)
Image.register_save_all(GifImageFile.format, _save_all)
Image.register_extension(GifImageFile.format, ".gif")
Image.register_mime(GifImageFile.format, "image/gif")
#
# Uncomment the following line if you wish to use NETPBM/PBMPLUS
# instead of the built-in "uncompressed" GIF encoder
# Image.register_save(GifImageFile.format, _save_netpbm)
# Write out the data for this frame to the output
data_descriptor = QGFFrameDataDescriptorV1()
data_descriptor.data = image_data
vprint(
f'{f"Frame {idx:3d} data":26s} {fp.tell():5d}d / {fp.tell():04X}h')
data_descriptor.write(fp)
# Iterate over each if the input frames, writing it to the output in the process
_for_all_frames(_write_frame)
# Go back and update the graphics descriptor now that we can determine the final file size
graphics_descriptor.total_file_size = fp.tell()
fp.seek(graphics_descriptor_location, 0)
graphics_descriptor.write(fp)
# Go back and update the frame offsets now that they're written to the file
fp.seek(frame_offset_location, 0)
frame_offsets.write(fp)
########################################################################################################################
# Register with PIL so that it knows about the QGF format
Image.register_open(QGFImageFile.format, QGFImageFile, _accept)
Image.register_save(QGFImageFile.format, _save)
Image.register_save_all(QGFImageFile.format, _save)
Image.register_extension(QGFImageFile.format,
f".{QGFImageFile.format.lower()}")
Image.register_mime(QGFImageFile.format,
f"image/{QGFImageFile.format.lower()}")
struct.pack(">4sIH?H", b"030\x00", 17 + length,
len(frames_buffers), 0,
1 if len(positions) > 1 else 0))
for buf in frames_buffers:
fp.write(buf)
def _debug(image):
print('Info' + str(image.info))
for i in range(image.n_frames):
image.seek(i)
print("Frame #%d: mode: %s size=%dx%d" %
(i, image.mode, image.size[0], image.size[1]))
print("\tHeader: ", image.header)
#
# Registration
#
Image.register_open(FACImageFile.format, FACImageFile, _accept)
Image.register_save(FACImageFile.format, _save)
Image.register_save_all(FACImageFile.format, _save_all)
Image.register_extension(FACImageFile.format, ".fac")
Image.register_mime(FACImageFile.format, "image/fac")
if __name__ == "__main__":
import doctest
doctest.testmod()
xref.append(fp.tell())
_obj(fp, pageNumber * 3 + 5, Length=len(op.fp.getvalue()))
fp.write("stream\n")
fp.fp.write(op.fp.getvalue())
fp.write("\nendstream\n")
_endobj(fp)
#
# trailer
startxref = fp.tell()
fp.write("xref\n0 %d\n0000000000 65535 f \n" % len(xref))
for x in xref[1:]:
fp.write("%010d 00000 n \n" % x)
fp.write("trailer\n<<\n/Size %d\n/Root 1 0 R\n>>\n" % len(xref))
fp.write("startxref\n%d\n%%%%EOF\n" % startxref)
if hasattr(fp, "flush"):
fp.flush()
#
# --------------------------------------------------------------------
Image.register_save("PDF", _save)
Image.register_save_all("PDF", _save_all)
Image.register_extension("PDF", ".pdf")
Image.register_mime("PDF", "application/pdf")
xref.append(fp.tell())
_obj(fp, pageNumber*3+5, Length=len(op.fp.getvalue()))
fp.write("stream\n")
fp.fp.write(op.fp.getvalue())
fp.write("\nendstream\n")
_endobj(fp)
#
# trailer
startxref = fp.tell()
fp.write("xref\n0 %d\n0000000000 65535 f \n" % len(xref))
for x in xref[1:]:
fp.write("%010d 00000 n \n" % x)
fp.write("trailer\n<<\n/Size %d\n/Root 1 0 R\n>>\n" % len(xref))
fp.write("startxref\n%d\n%%%%EOF\n" % startxref)
if hasattr(fp, "flush"):
fp.flush()
#
# --------------------------------------------------------------------
Image.register_save("PDF", _save)
Image.register_save_all("PDF", _save_all)
Image.register_extension("PDF", ".pdf")
Image.register_mime("PDF", "application/pdf")
