>>> import time
>>> time.strftime("%a, %d %b %Y %H:%M:%S GMT", time.gmtime())
'Fri, 20 May 2005 11:08:40 GMT'
>>> t = time.strftime("%a, %d %b %Y %H:%M:%S GMT", time.gmtime(time.time()))
>>> t
'Fri, 20 May 2005 11:22:20 GMT'
>>> time.strptime(t, "%a, %d %b %Y %H:%M:%S GMT")
(2005, 5, 20, 11, 22, 20, 4, 140, -1)
"%a, %d %b %Y %H:%M:%S GMT"
user$ apt-file update
user$ apt-file search command_name
user$ apt-file update
user$ apt-file search command_name
user$ aptitude changelog reportbug
#!/usr/bin/python
import sys, os.path
import pygtk; pygtk.require('2.0')
import gtk
import gst, gst.interfaces
def cb_eos(kele, data):
gtk.main_quit()
def cb_error(*args):
print args, args[2]
class Control:
def __init__(self, playbin, vsink,da):
self.fullscreen = False
self.play = playbin
self.vsink = vsink
self.da = da
def key_release(self, widget, event, *args):
if event.string in ['p', ' ']:
if self.play.get_state() == gst.STATE_PLAYING:
ret = self.play.set_state(gst.STATE_PAUSED)
else:
self.vsink.set_xwindow_id(self.da.window.xid)
ret = self.play.set_state(gst.STATE_PLAYING)
elif event.string == 's':
ret = self.play.set_state(gst.STATE_NULL)
elif event.string == 'q':
self.quit()
elif event.string == 'f':
if self.fullscreen:
widget.unfullscreen()
else:
widget.fullscreen()
self.fullscreen = not self.fullscreen
def quit(self, *args):
ret = self.play.set_state(gst.STATE_NULL)
gtk.main_quit()
def main():
fname = sys.argv[1]
absfname = os.path.abspath(fname)
uri = 'file://%s' % absfname
# Setup video/audio sink and playbin
vsink = gst.element_factory_make('xvimagesink')
asink = gst.element_factory_make('esdsink', 'asink')
playbin = gst.element_factory_make('playbin', 'playbin')
playbin.set_property('video-sink', vsink)
playbin.set_property('audio-sink', asink)
playbin.set_property('uri', uri)
playbin.connect('eos', cb_eos)
playbin.connect('error', cb_error)
win = gtk.Window(gtk.WINDOW_TOPLEVEL)
da = gtk.DrawingArea()
ctr = Control(playbin, vsink, da)
win.add(da)
win.connect('key-release-event', ctr.key_release)
win.connect('delete-event', ctr.quit)
win.show_all()
gtk.main()
playbin.set_state(gst.STATE_NULL)
if __name__ == '__main__':
main()
# vim:ts=8:sw=4:expandtab
player.py test.avi
| p or space | Play/pause the movie |
| s | Stop the movie |
| f | Fullscreen/un-fullscreen |
| q | Quit the program. |
| filesrc: | load video file from source. |
| ffdemux_avi: | demux avi into streams, from the gstreamer-ffmpeg plugin. |
| queue: | Since we want to play both video and audio, need to use threads for video and audio playing at the same time. queue is used to bridge a thread to other threads. |
| ffdec_msmpeg4v2: | well, we want to play a msmpeg4v2 video. |
| ffcolorspace: | convert the decoded video stream into something our video display can understand. |
| xvimagesink: | we use xv as our video output devicde. Other options: sdlvideosink, ximagesink. Somehow, autovideosink don't work for me. |
| mad: | this element handle mp3 audio codec. |
| esdsink: | I use esd as audio output device. Of cause alsasink should work too, if it is not used by someone else. |
cdef extern from "Python.h":
void Py_Initialize()
void Py_Finalize()
void PySys_SetArgv(int argc, char *argv[])
# Declare extension init function as a C function.
cdef public void initdemo()
# Define main() and declare it as "public"
cdef public int main(int argc, char *argv[]):
Py_Initialize() # Init Python environment
PySys_SetArgv(argc, argv) # Fill in sys.argv
initdemo() # Init our Pyrex generated main module.
# Do something here...
Py_Finalize() # When done, clean up Python env.
cdef extern from "Python.h":
void Py_Initialize()
void Py_Finalize()
void PySys_SetArgv(int argc, char *argv[])
cdef extern from "stdio.h":
int printf(char *format, ...)
cdef public void initdemo()
def regex(msg):
import re
a = re.findall(r'as\w*', msg)
return a
cdef public int main(int argc, char *argv[]):
Py_Initialize()
PySys_SetArgv(argc, argv)
initdemo()
msg = 'Jump it as high as an ass, asshole!'
print 'Searching "as" from "%s"' % msg
m = regex(msg)
for i in m:
print 'Match:', i
cdef int count
count = len(m)
printf("Total: %d\n", count)
Py_Finalize()
# vim:ts=8:sw=4:expandtab
all: demo
demo: demo.c
gcc -g -O2 -I/usr/include/python2.3 -lpython2.3 -o demo demo.c
demo.c: demo.pyx
pyrexc demo.pyx
.PHONY:
all
 I saw some question asked about making flashget like progress window in gtk+. It can be simply realized using DrawingArea. Then there is also the problem of scrolling the DrawingArea inside a ScrolledWindow. Well, this is simple. Just put a Viewport b/w the DrawingArea and the ScrolledWindow. Then do a set_size_request on the DrawingArea. |
#!/usr/bin/python
import pygtk
pygtk.require('2.0')
import gtk
# 2 icons we use in our drawing area.
PICTNAME1="gdraw1.png"
PICTNAME2="gdraw2.png"
def load(pix):
'''Load GUI'''
win = gtk.Window()
gdraw = gtk.DrawingArea()
sw = gtk.ScrolledWindow()
sw.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)
vp = gtk.Viewport()
sw.add(vp)
vp.add(gdraw)
win.add(sw)
win.resize(400, 200)
win.connect('delete-event', gtk.main_quit)
gdraw.connect('expose-event', expose_pix, pix)
win.show_all()
def expose_pix(gdraw, event, pix):
'''At expose event, actual draw graph.'''
pix1, pix2 = pix
gc = gdraw.window.new_gc()
pw = pix1.get_width()
ph = pix1.get_height()
geo = gdraw.window.get_geometry()
gw, gh = geo[2:4]
dx = dy = 0
# Draw 100 pixbuf on DrawingArea
for i in range(100):
if dx + pw > gw:
# Move down to the next line
dx = 0
dy += ph+1
if i % 7: # Draw a pix2 every 7 pix1
pixi = pix1
else:
pixi = pix2
gdraw.window.draw_pixbuf(gc, pixi, 0, 0,
dx, dy, pw, ph)
dx += pw+1
# Set the gdraw size request for Viewport
# to the height of our drawing.
gdraw.set_size_request(-1, dy+ph)
def main():
pix1 = gtk.gdk.pixbuf_new_from_file(PICTNAME1)
pix2 = gtk.gdk.pixbuf_new_from_file(PICTNAME2)
load((pix1, pix2))
gtk.main()
if __name__ == '__main__':
main()
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