149 lines
3.2 KiB
Python
149 lines
3.2 KiB
Python
#! /usr/bin/python
|
|
|
|
'''These are core Ocarina system calls that should help in both development
|
|
of future Ocarina features and in usage of ocarina-core'''
|
|
|
|
__author__="bjschuma"
|
|
__date__ ="$Mar 30, 2010 11:24:43 PM$"
|
|
|
|
|
|
from ocarina import events
|
|
from ocarina import vars
|
|
from ct import times
|
|
from ct import path
|
|
|
|
|
|
def exit():
|
|
'''Safely exit ocarina'''
|
|
path.rm(vars.LOCKFILE)
|
|
import gstreamer
|
|
import sys
|
|
events.start(events.OCARINA_QUIT)
|
|
sys.exit(0)
|
|
|
|
|
|
def about():
|
|
write("Ocarina Version 3.0")
|
|
write("Written by Bryan Schumaker (bjschuma@umich.edu)")
|
|
|
|
|
|
def write(s,verbose=0):
|
|
if vars.VERBOSE >= verbose:
|
|
print str(s)
|
|
|
|
|
|
def load(path):
|
|
'''Load the song located at path'''
|
|
import gstreamer
|
|
gstreamer.load(path)
|
|
from ct import tags
|
|
tags.get(path)
|
|
|
|
|
|
def seek(prcnt):
|
|
''' Seek to prcnt% of the song. If 0 < prcnt < 1, then we will seek to
|
|
(prcnt * 100)% of song's duration. If prcnt < 100, then we will seek
|
|
to prcnt% of the song's duration.'''
|
|
from gstreamer import position
|
|
good = position.seek(prcnt)
|
|
if good == -1:
|
|
write("There was an error seeking to: "+str(prcnt))
|
|
|
|
|
|
def progress():
|
|
'''Return the fraction of the song that we have already played'''
|
|
from gstreamer import position
|
|
progress = position.getProgress()
|
|
write(progress)
|
|
return progress
|
|
|
|
|
|
def duration():
|
|
'''Return the total duration of the song. If message printing is enabled,
|
|
then we will also print out string representing the duration in
|
|
hh:mm:ss form'''
|
|
from gstreamer import position
|
|
duration = position.duration()
|
|
write(times.ms2str(duration))
|
|
return duration
|
|
|
|
|
|
def time():
|
|
'''Returns how far into the song gstreamer currently is. If message printing
|
|
is enabled, then we will also print out a string representing the duration in
|
|
hh:mm:ss form'''
|
|
from gstreamer import position
|
|
time = position.currentpos()
|
|
write(times.ms2str(time))
|
|
return time
|
|
|
|
|
|
def gsstate():
|
|
'''Returns the current gstreamer state'''
|
|
from gstreamer import playback
|
|
state = playback.getstate()
|
|
write(state)
|
|
return state
|
|
|
|
|
|
def playing(disp=True):
|
|
'''Returns true if ocarina is currently playing'''
|
|
from gstreamer import playback
|
|
import gst
|
|
state = playback.getstate() == gst.STATE_PLAYING
|
|
if disp==True:
|
|
if state == True:
|
|
write("Ocarina is playing")
|
|
else:
|
|
write("Ocarina is not playing")
|
|
return state
|
|
|
|
|
|
def tags(disp=True):
|
|
'''Returns (title, artist, album) for the current track'''
|
|
if disp == True:
|
|
print vars.TITLE
|
|
print "by",vars.ARTIST
|
|
print "from",vars.ALBUM
|
|
return (vars.TITLE, vars.ARTIST, vars.ALBUM)
|
|
|
|
|
|
def play():
|
|
'''Begin playback of the loaded song'''
|
|
events.start(events.OCARINA_PLAY)
|
|
|
|
|
|
def pause():
|
|
'''Pause playback of the current song'''
|
|
events.start(events.OCARINA_PAUSE)
|
|
|
|
|
|
def stop():
|
|
'''Pause playback of the current song and seek to the beginning'''
|
|
pause()
|
|
seek(0)
|
|
|
|
|
|
def volup():
|
|
'''Increase the volume'''
|
|
from gstreamer import volume
|
|
volume.volup()
|
|
|
|
|
|
def voldown():
|
|
'''Decrease the volume'''
|
|
from gstreamer import volume
|
|
volume.voldown()
|
|
|
|
|
|
def volset(vol):
|
|
'''Set the volume'''
|
|
from gstreamer import volume
|
|
volume.setvol(vol)
|
|
|
|
|
|
def pyfile(file):
|
|
'''If file exists, try to execute it as a python script'''
|
|
if path.exists(file) == True:
|
|
write("Running script: "+file,1)
|
|
execfile(file) |