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videolan
vlc-2-2
Commits
f83867bb
Commit
f83867bb
authored
Jul 30, 2009
by
Olivier Aubert
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New python bindings, using ctypes, automatically generated from include files.
parent
c3f18518
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+715
-0
bindings/python-ctypes/Makefile
bindings/python-ctypes/Makefile
+12
-0
bindings/python-ctypes/README
bindings/python-ctypes/README
+52
-0
bindings/python-ctypes/TODO
bindings/python-ctypes/TODO
+11
-0
bindings/python-ctypes/generate.py
bindings/python-ctypes/generate.py
+448
-0
bindings/python-ctypes/header.py
bindings/python-ctypes/header.py
+161
-0
bindings/python-ctypes/override.py
bindings/python-ctypes/override.py
+31
-0
No files found.
bindings/python-ctypes/Makefile
0 → 100644
View file @
f83867bb
MODULE_NAME
=
vlc.py
all
:
$(MODULE_NAME)
$(MODULE_NAME)
:
generate.py header.py override.py ../../include/vlc/*.h
./generate.py ../../include/vlc/
*
.h
>
$@
doc
:
$(MODULE_NAME)
-
epydoc
-v
-o
doc
$<
clean
:
-
$(RM)
$(MODULE_NAME)
bindings/python-ctypes/README
0 → 100644
View file @
f83867bb
* Python ctypes-based bindings
The bindings use ctypes to directly call the libvlc dynamic lib, and
the code is generated from the include files defining the public API.
** Building
To generate the vlc.py module and its documentation, use
make
Documentation building needs epydoc.
** Layout
The module offers two ways of accessing the API - a raw access to all
exported methods, and more convenient wrapper classes :
- Raw access: methods are available as attributes of the vlc
module. Use their docstring (introspective shells like ipython are
your friends) to explore them.
- Wrapper classes: most major structures of the libvlc API (Instance,
Media, MediaPlayer, etc) are wrapped as classes, with shorter method
names.
** Using the module
On win32, the simplest way is to put the vlc.py file in the same
directory as the libvlc.dll file (standard location:
c:\Program Files\VideoLAN\VLC ).
- Using raw access:
>>> import vlc
>>> vlc.libvlc_get_version()
'1.0.0 Goldeneye'
>>> e=vlc.VLCException()
>>> i=vlc.libvlc_new(0, [], e)
>>> i
<vlc.Instance object at 0x8384a4c>
>>> vlc.libvlc_audio_get_volume(i,e)
50
- Using wrapper classes:
>>> i=vlc.Instance.new()
>>> i.audio_get_volume()
50
>>> m=i.media_new('/tmp/foo.avi')
>>> m.get_mrl()
'/tmp/foo.avi'
bindings/python-ctypes/TODO
0 → 100644
View file @
f83867bb
* Check cross-platform (win32, MacOSX) support
* Investigate memory management
* Find how to properly define enums
* Autogenerate enums from include files
* Implement event callbacks
* Write a test suite
bindings/python-ctypes/generate.py
0 → 100755
View file @
f83867bb
This diff is collapsed.
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bindings/python-ctypes/header.py
0 → 100755
View file @
f83867bb
#! /usr/bin/python
#
# Python ctypes bindings for VLC
# Copyright (C) 2009 the VideoLAN team
# $Id: $
#
# Authors: Olivier Aubert <olivier.aubert at liris.cnrs.fr>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
#
import
ctypes
import
sys
build_date
=
"This will be replaced by the build date"
if
sys
.
platform
==
'linux2'
:
dll
=
ctypes
.
CDLL
(
'libvlc.so'
)
elif
sys
.
platform
==
'win32'
:
dll
=
ctypes
.
CDLL
(
'libvlc.dll'
)
elif
sys
.
platform
==
'darwin'
:
# FIXME: should find a means to configure path
dll
=
ctypes
.
CDLL
(
'/Applications/VLC.app/Contents/MacOS/lib/libvlc.2.dylib'
)
class
ListPOINTER
(
object
):
'''Just like a POINTER but accept a list of ctype as an argument.
'''
def
__init__
(
self
,
etype
):
self
.
etype
=
etype
def
from_param
(
self
,
param
):
if
isinstance
(
param
,
(
list
,
tuple
)):
return
(
self
.
etype
*
len
(
param
))(
*
param
)
# From libvlc_structures.h
class
VLCException
(
ctypes
.
Structure
):
_fields_
=
[
(
'raised'
,
ctypes
.
c_int
),
(
'code'
,
ctypes
.
c_int
),
(
'message'
,
ctypes
.
c_char_p
),
]
def
init
(
self
):
libvlc_exception_init
(
self
)
def
clear
(
self
):
libvlc_exception_clear
(
self
)
class
PlaylistItem
(
ctypes
.
Structure
):
_fields_
=
[
(
'id'
,
ctypes
.
c_int
),
(
'uri'
,
ctypes
.
c_char_p
),
(
'name'
,
ctypes
.
c_char_p
),
]
class
LogMessage
(
ctypes
.
Structure
):
_fields_
=
[
(
'size'
,
ctypes
.
c_uint
),
(
'severity'
,
ctypes
.
c_int
),
(
'type'
,
ctypes
.
c_char_p
),
(
'name'
,
ctypes
.
c_char_p
),
(
'header'
,
ctypes
.
c_char_p
),
(
'message'
,
ctypes
.
c_char_p
),
]
class
MediaControlPosition
(
ctypes
.
Structure
):
_fields_
=
[
(
'origin'
,
ctypes
.
c_ushort
),
(
'key'
,
ctypes
.
c_ushort
),
(
'value'
,
ctypes
.
c_longlong
),
]
@
staticmethod
def
from_param
(
arg
):
if
isinstance
(
arg
,
(
int
,
long
)):
p
=
MediaControlPosition
()
p
.
value
=
arg
p
.
key
=
2
return
p
else
:
return
arg
class
MediaControlPositionOrigin
(
ctypes
.
c_uint
):
enum
=
(
'AbsolutePosition'
,
'RelativePosition'
,
'ModuloPosition'
,
)
def
__repr__
(
self
):
return
self
.
enum
[
self
.
value
]
class
State
(
ctypes
.
c_uint
):
# FIXME: should be improved (State.NothingSpecial should hold the value)
# and maybe auto-generated from typedefs
enum
=
(
'NothingSpecial'
,
'Opening'
,
'Buffering'
,
'Playing'
,
'Paused'
,
'Stopped'
,
'Ended'
,
'Error'
,
)
def
__repr__
(
self
):
return
self
.
enum
[
self
.
value
]
class
MediaControlException
(
ctypes
.
Structure
):
_fields_
=
[
(
'code'
,
ctypes
.
c_int
),
(
'message'
,
ctypes
.
c_char_p
),
]
def
init
(
self
):
mediacontrol_exception_init
(
self
)
def
clear
(
self
):
mediacontrol_exception_free
(
self
)
class
MediaControlStreamInformation
(
ctypes
.
Structure
):
_fields_
=
[
(
'code'
,
ctypes
.
c_int
),
(
'message'
,
ctypes
.
c_char_p
),
]
class
RGBPicture
(
ctypes
.
Structure
):
_fields_
=
[
(
'width'
,
ctypes
.
c_int
),
(
'height'
,
ctypes
.
c_int
),
(
'type'
,
ctypes
.
c_uint32
),
(
'date'
,
ctypes
.
c_longlong
),
(
'size'
,
ctypes
.
c_int
),
(
'data'
,
ctypes
.
c_char_p
),
]
def
free
(
self
):
mediacontrol_RGBPicture__free
(
self
)
# Decorator for callback methods
callbackmethod
=
ctypes
.
CFUNCTYPE
(
None
,
ctypes
.
c_void_p
,
ctypes
.
c_void_p
)
def
check_vlc_exception
(
result
,
func
,
args
):
"""Error checking method for functions using an exception in/out parameter.
"""
ex
=
args
[
-
1
]
# Take into account both VLCException and MediacontrolException
c
=
getattr
(
ex
,
'raised'
,
getattr
(
ex
,
'code'
,
0
))
if
c
:
raise
Exception
(
args
[
-
1
].
message
)
return
result
bindings/python-ctypes/override.py
0 → 100644
View file @
f83867bb
class
Instance
:
@
staticmethod
def
new
(
*
p
):
"""Create a new Instance.
"""
e
=
VLCException
()
return
libvlc_new
(
len
(
p
),
p
,
e
)
class
MediaControl
:
@
staticmethod
def
new
(
*
p
):
"""Create a new MediaControl
"""
e
=
MediaControlException
()
return
mediacontrol_new
(
len
(
p
),
p
,
e
)
@
staticmethod
def
new_from_instance
(
i
):
"""Create a new MediaControl from an existing Instance.
"""
e
=
MediaControlException
()
return
mediacontrol_new_from_instance
(
i
,
e
)
class
MediaList
:
def
__len__
(
self
):
e
=
VLCException
()
return
libvlc_media_list_count
(
self
,
e
)
def
__getitem__
(
self
,
i
):
e
=
VLCException
()
return
libvlc_media_list_item_at_index
(
self
,
i
,
e
)
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