def animated(images, file=None, delay=300, loop=False):
"""
Generates an anmiated GIF.
The *images* parameter is a sequence of objects that can be read as
GIF images, such as an array of bytes.
The *file* parameter specifies the file to generate. When omitted the
resulting animated GIF is returned from this function as an array byte.
The *delay* specifies the frame rate in milliseconds.
The *loop* parameter specifies whether the animated GIF should loop
continously.
"""
from com.sun.media.imageioimpl.plugins.gif import GIFImageWriter
from com.sun.media.imageioimpl.plugins.gif import GIFImageWriterSpi
out = ByteArrayOutputStream() if file is None else util.toFile(file)
ios = ImageIO.createImageOutputStream(out)
w = GIFImageWriter(GIFImageWriterSpi())
w.setOutput(ios)
w.prepareWriteSequence(None)
wp = w.getDefaultWriteParam()
wp.setCompressionMode(ImageWriteParam.MODE_EXPLICIT)
wp.setCompressionType('LZW')
wp.setCompressionQuality(0.75)
for img in images:
iis = ImageIO.createImageInputStream(util.toInputStream(img))
ri = ImageIO.read(iis)
md = w.getDefaultImageMetadata(ImageTypeSpecifier(ri), wp)
t = IIOMetadataTree(md)
t.set('GraphicControlExtension', delayTime=delay / 10)
if loop is True:
n = t.set('ApplicationExtensions',
'ApplicationExtension',
applicationID='NETSCAPE',
authenticationCode='2.0')
n.setUserObject(jarray.array([0x1, 0, 0], 'b'))
t.commit()
w.writeToSequence(IIOImage(ri, None, md), wp)
w.endWriteSequence()
ios.flush()
ios.close()
if file is None:
return out.toByteArray()
def animated(images, file=None, delay=300, loop=False):
"""
Generates an anmiated GIF.
The *images* parameter is a sequence of objects that can be read as
GIF images, such as an array of bytes.
The *file* parameter specifies the file to generate. When omitted the
resulting animated GIF is returned from this function as an array byte.
The *delay* specifies the frame rate in milliseconds.
The *loop* parameter specifies whether the animated GIF should loop
continously.
"""
from com.sun.media.imageioimpl.plugins.gif import GIFImageWriter
from com.sun.media.imageioimpl.plugins.gif import GIFImageWriterSpi
out = ByteArrayOutputStream() if file is None else util.toFile(file)
ios = ImageIO.createImageOutputStream(out)
w = GIFImageWriter(GIFImageWriterSpi())
w.setOutput(ios)
w.prepareWriteSequence(None)
wp = w.getDefaultWriteParam()
wp.setCompressionMode(ImageWriteParam.MODE_EXPLICIT)
wp.setCompressionType('LZW')
wp.setCompressionQuality(0.75)
for img in images:
iis = ImageIO.createImageInputStream(util.toInputStream(img))
ri = ImageIO.read(iis)
md = w.getDefaultImageMetadata(ImageTypeSpecifier(ri),wp)
t = IIOMetadataTree(md)
t.set('GraphicControlExtension', delayTime=delay/10)
if loop is True:
n = t.set('ApplicationExtensions', 'ApplicationExtension',
applicationID='NETSCAPE', authenticationCode='2.0')
n.setUserObject(jarray.array([0x1,0, 0], 'b'))
t.commit()
w.writeToSequence(IIOImage(ri, None, md), wp)
w.endWriteSequence()
ios.flush()
ios.close()
if file is None:
return out.toByteArray()
