1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
# python import
import gst
# ..
from datetime import timedelta
class Player(object):
def __init__(self, loop=False):
# playing flag
self.playing = False
self.loop = loop
# player object
self.player = None
self._init_player()
# file to play
self._soundfile = None
def _reload_cb(self, bus, message):
if self.loop is True:
self.player.set_state(gst.STATE_READY)
self.player.set_state(gst.STATE_PLAYING)
else:
pass
def _error_cb(self, bus, message):
self.player.set_state(gst.STATE_NULL)
def _init_player(self):
# make player
self.player = gst.element_factory_make("playbin", "player")
# video fake
_fakesink = gst.element_factory_make('fakesink', "my-fakesink")
self.player.set_property("video-sink", _fakesink)
# bus ..
bus = self.player.get_bus()
bus.add_signal_watch()
bus.connect('message::eos', self._reload_cb)
bus.connect('message::error', self._error_cb)
def serialize(self):
# little check
if self._soundfile is None:
return None
else:
return file(self._soundfile, 'r').read()
def load(self, soundfile):
# file to play
self._soundfile = soundfile
# little check
if self._soundfile is None:
pass
else:
# load sound file
self.player.set_state(gst.STATE_NULL)
self.player.set_property('uri', 'file://' + self._soundfile)
def get_position(self):
# little check
if self._soundfile is None:
return None
else:
# ...
_position = self.player.query_duration(gst.FORMAT_TIME)[0]
# ...
return timedelta(seconds=(_position / gst.SECOND))
def get_duration(self):
# little check
if self._soundfile is None:
return None
else:
# _duration = self.player.query_duration(gst.FORMAT_TIME)[0]
# ..
_parser = gst.parse_launch("filesrc name=source ! decodebin2 ! fakesink")
# ..
_source = _parser.get_by_name("source")
_source.set_property("location", self._soundfile)
# ..
_parser.set_state(gst.STATE_PLAYING)
_parser.get_state()
# ..
_format = gst.Format(gst.FORMAT_TIME)
_duration = _parser.query_duration(_format)[0]
_parser.set_state(gst.STATE_NULL)
# ..
return timedelta(seconds=(_duration / gst.SECOND))
def seek(self, time):
# little check
if self._soundfile is None:
return
else:
# format time
_seek = time * 1000000000
# do seek
self.player.seek_simple(gst.FORMAT_TIME, gst.SEEK_FLAG_FLUSH, _seek)
def play(self):
self.playing = True
self.player.set_state(gst.STATE_PLAYING)
def pause(self):
self.playing = False
self.player.set_state(gst.STATE_PAUSED)
def stop(self):
self.playing = False
self.player.set_state(gst.STATE_NULL)
|
