/usr/lib/python2.7/dist-packages/pyglet/image/codecs/quicktime.py is in python-pyglet 1.1.4.dfsg-3.
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# pyglet
# Copyright (c) 2006-2008 Alex Holkner
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of pyglet nor the names of its
# contributors may be used to endorse or promote products
# derived from this software without specific prior written
# permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# ----------------------------------------------------------------------------
'''
'''
__docformat__ = 'restructuredtext'
__version__ = '$Id: pil.py 163 2006-11-13 04:15:46Z Alex.Holkner $'
import sys
from ctypes import *
from pyglet.gl import *
from pyglet.image import *
from pyglet.image.codecs import *
from pyglet.window.carbon import carbon, quicktime, _oscheck
from pyglet.window.carbon.constants import _name
from pyglet.window.carbon.types import *
Handle = POINTER(POINTER(c_byte))
GWorldPtr = c_void_p
carbon.NewHandle.restype = Handle
HandleDataHandlerSubType = _name('hndl')
PointerDataHandlerSubType = _name('ptr ')
kDataHCanRead = 1
kDataRefExtensionFileName = _name('fnam')
kDataRefExtensionMIMEType = _name('mime')
ComponentInstance = c_void_p
k1MonochromePixelFormat = 0x00000001
k2IndexedPixelFormat = 0x00000002
k4IndexedPixelFormat = 0x00000004
k8IndexedPixelFormat = 0x00000008
k16BE555PixelFormat = 0x00000010
k24RGBPixelFormat = 0x00000018
k32ARGBPixelFormat = 0x00000020
k32BGRAPixelFormat = _name('BGRA')
k1IndexedGrayPixelFormat = 0x00000021
k2IndexedGrayPixelFormat = 0x00000022
k4IndexedGrayPixelFormat = 0x00000024
k8IndexedGrayPixelFormat = 0x00000028
kNativeEndianPixMap = 1 << 8
newMovieActive = 1
noErr = 0
movieTrackMediaType = 1 << 0
movieTrackCharacteristic = 1 << 1
movieTrackEnabledOnly = 1 << 2
VisualMediaCharacteristic = _name('eyes')
nextTimeMediaSample = 1
class PointerDataRefRecord(Structure):
_fields_ = [
('data', c_void_p),
('dataLength', c_long)
]
def Str255(value):
return create_string_buffer(chr(len(value)) + value)
class QuickTimeImageDecoder(ImageDecoder):
def get_file_extensions(self):
# Only most common ones shown here
return ['.bmp', '.cur', '.gif', '.ico', '.jpg', '.jpeg', '.pcx', '.png',
'.tga', '.tif', '.tiff', '.xbm', '.xpm']
def get_animation_file_extensions(self):
return ['.gif']
def _get_data_ref(self, file, filename):
self._data_hold = data = create_string_buffer(file.read())
dataref = carbon.NewHandle(sizeof(PointerDataRefRecord))
datarec = cast(dataref,
POINTER(POINTER(PointerDataRefRecord))).contents.contents
datarec.data = addressof(data)
datarec.dataLength = len(data)
self._data_handler_holder = data_handler = ComponentInstance()
r = quicktime.OpenADataHandler(dataref, PointerDataHandlerSubType,
None, 0, None, kDataHCanRead, byref(data_handler))
_oscheck(r)
extension_handle = Handle()
self._filename_hold = filename = Str255(filename)
r = carbon.PtrToHand(filename, byref(extension_handle), len(filename))
r = quicktime.DataHSetDataRefExtension(data_handler, extension_handle,
kDataRefExtensionFileName)
_oscheck(r)
quicktime.DisposeHandle(extension_handle)
quicktime.DisposeHandle(dataref)
dataref = c_void_p()
r = quicktime.DataHGetDataRef(data_handler, byref(dataref))
_oscheck(r)
quicktime.CloseComponent(data_handler)
return dataref
def _get_formats(self):
# TODO choose 24 bit where appropriate.
if sys.byteorder == 'big':
format = 'ARGB'
qtformat = k32ARGBPixelFormat
else:
format = 'BGRA'
qtformat = k32BGRAPixelFormat
return format, qtformat
def decode(self, file, filename):
dataref = self._get_data_ref(file, filename)
importer = ComponentInstance()
quicktime.GetGraphicsImporterForDataRef(dataref,
PointerDataHandlerSubType, byref(importer))
if not importer:
raise ImageDecodeException(filename or file)
rect = Rect()
quicktime.GraphicsImportGetNaturalBounds(importer, byref(rect))
width = rect.right
height = rect.bottom
format, qtformat = self._get_formats()
buffer = (c_byte * (width * height * len(format)))()
world = GWorldPtr()
quicktime.QTNewGWorldFromPtr(byref(world), qtformat,
byref(rect), c_void_p(), c_void_p(), 0, buffer,
len(format) * width)
quicktime.GraphicsImportSetGWorld(importer, world, c_void_p())
result = quicktime.GraphicsImportDraw(importer)
quicktime.DisposeGWorld(world)
quicktime.CloseComponent(importer)
if result != 0:
raise ImageDecodeException(filename or file)
pitch = len(format) * width
return ImageData(width, height, format, buffer, -pitch)
def decode_animation(self, file, filename):
# TODO: Stop playing chicken with the GC
# TODO: Cleanup in errors
quicktime.EnterMovies()
data_ref = self._get_data_ref(file, filename)
if not data_ref:
raise ImageDecodeException(filename or file)
movie = c_void_p()
id = c_short()
result = quicktime.NewMovieFromDataRef(byref(movie),
newMovieActive,
0,
data_ref,
PointerDataHandlerSubType)
if not movie:
#_oscheck(result)
raise ImageDecodeException(filename or file)
quicktime.GoToBeginningOfMovie(movie)
time_scale = float(quicktime.GetMovieTimeScale(movie))
format, qtformat = self._get_formats()
# Get movie width and height
rect = Rect()
quicktime.GetMovieBox(movie, byref(rect))
width = rect.right
height = rect.bottom
pitch = len(format) * width
# Set gworld
buffer = (c_byte * (width * height * len(format)))()
world = GWorldPtr()
quicktime.QTNewGWorldFromPtr(byref(world), qtformat,
byref(rect), c_void_p(), c_void_p(), 0, buffer,
len(format) * width)
quicktime.SetGWorld(world, 0)
quicktime.SetMovieGWorld(movie, world, 0)
visual = quicktime.GetMovieIndTrackType(movie, 1,
VisualMediaCharacteristic,
movieTrackCharacteristic)
if not visual:
raise ImageDecodeException('No video track')
time = 0
interesting_time = c_int()
quicktime.GetTrackNextInterestingTime(
visual,
nextTimeMediaSample,
time,
1,
byref(interesting_time),
None)
duration = interesting_time.value / time_scale
frames = []
while time >= 0:
result = quicktime.GetMoviesError()
if result == noErr:
# force redraw
result = quicktime.UpdateMovie(movie)
if result == noErr:
# process movie
quicktime.MoviesTask(movie, 0)
result = quicktime.GetMoviesError()
_oscheck(result)
buffer_copy = (c_byte * len(buffer))()
memmove(buffer_copy, buffer, len(buffer))
image = ImageData(width, height, format, buffer_copy, -pitch)
frames.append(AnimationFrame(image, duration))
interesting_time = c_int()
duration = c_int()
quicktime.GetTrackNextInterestingTime(
visual,
nextTimeMediaSample,
time,
1,
byref(interesting_time),
byref(duration))
quicktime.SetMovieTimeValue(movie, interesting_time)
time = interesting_time.value
duration = duration.value / time_scale
if duration <= 0.01:
duration = 0.1
quicktime.DisposeMovie(movie)
carbon.DisposeHandle(data_ref)
quicktime.ExitMovies()
return Animation(frames)
def get_decoders():
return [QuickTimeImageDecoder()]
def get_encoders():
return []
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