def from_buffer(cls, buffer_):
"""Instantiate an image container from an image memoryview.
Args:
buffer_ -- a memoryview containing image data as bytes
"""
obj = cls(None)
obj.__image = libexiv2python._Image(buffer_, len(buffer_))
return obj
def from_buffer(cls, buffer):
"""
Instantiate an image container from an image buffer.
:param buffer: a buffer containing image data
:type buffer: string
"""
obj = cls(None)
obj.__image = libexiv2python._Image(buffer, len(buffer))
return obj
def _instantiate_image(self, filename):
# This method is meant to be overridden in unit tests to easily replace
# the internal image reference by a mock.
if not os.path.exists(filename) or not os.path.isfile(filename):
raise IOError(ENOENT, os.strerror(ENOENT), filename)
# Remember the reference timestamps before doing any access to the file
stat = os.stat(filename)
self._atime = stat.st_atime
self._mtime = stat.st_mtime
return libexiv2python._Image(filename)
def from_buffer(cls, buffer):
"""
Instantiate an image container from an image buffer.
:param buffer: a buffer containing image data
:type buffer: string
"""
obj = cls(None)
obj.__image = libexiv2python._Image(buffer, len(buffer))
return obj
def _instantiate_image(self, filename):
# This method is meant to be overridden in unit tests to easily replace
# the internal image reference by a mock.
if not os.path.exists(filename) or not os.path.isfile(filename):
raise IOError(ENOENT, os.strerror(ENOENT), filename)
# Remember the reference timestamps before doing any access to the file
stat = os.stat(filename)
self._atime = stat.st_atime
self._mtime = stat.st_mtime
return libexiv2python._Image(filename)