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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
#!/usr/bin/python
#-*- encoding: UTF-8 -*-
''' Script para ver la cámara, sacar fotos, grabar sonido y escucharlo
Basado en http://pygstdocs.berlios.de/pygst-tutorial/webcam-viewer.html
'''
#Copyright (C) 2009 Federico Moreira - <federico@piensalibre.info>
# Alejandro Esperón - <ratman26@gmail.com>
# Pablo Moleri - <pmoleri@gmail.com>
# Daniel Berniger - <berniger@gmail.com>
# Santiago Aguiar - <santiago.aguiar@gmail.com>
#
# 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 3 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, see <http://www.gnu.org/licenses/>
import time
import os
import subprocess
import signal
import gtk
import pygst
pygst.require("0.10")
import gst
class VentanaMultimedia(gtk.Frame):
''' Clase para ver la cámara, sacar fotos, grabar audio y escucharlo '''
def __init__(self):
gtk.Frame.__init__(self, None)
self.recording = False
self.rec_process = None
vbox = gtk.VBox()
self.add(vbox)
self.movie_window = gtk.DrawingArea()
vbox.add(self.movie_window)
hbox = gtk.HBox()
vbox.pack_start(hbox, False)
hbox.set_border_width(10)
hbox.pack_start(gtk.Label())
self.btn_prender = gtk.Button("Prender")
self.btn_prender.connect("clicked", self.start_stop)
hbox.pack_start(self.btn_prender, False)
self.btn_tomar = gtk.Button("Tomar foto")
self.btn_tomar.connect("clicked", self.take_pic)
hbox.pack_start(self.btn_tomar, False)
self.btn_record = gtk.Button("Grabar Sonido")
self.btn_record.connect("clicked", self.record_sound)
hbox.pack_start(self.btn_record, False)
self.btn_listen = gtk.Button("Escuchar Sonido")
self.btn_listen.connect("clicked", self.listen_record)
hbox.pack_start(self.btn_listen, False)
self.btn_salir = gtk.Button("Salir")
self.btn_salir.connect("clicked", self.exit)
hbox.pack_start(self.btn_salir, False)
hbox.add(gtk.Label())
self.show_all()
# Set up the gstreamer pipeline
#self.player = gst.parse_launch ("v4l2src ! autovideosink")
self.player = gst.parse_launch ("udpsrc port=5000 ! smokedec ! ffmpegcolorspace ! autovideosink")
bus = self.player.get_bus()
bus.add_signal_watch()
bus.enable_sync_message_emission()
bus.connect("message", self.on_message)
bus.connect("sync-message::element", self.on_sync_message)
self.tx_players = {}
def start_stop(self, dummy_widget):
''' Comienza o detiene la camara '''
if self.btn_prender.get_label() == "Prender":
self.btn_prender.set_label("Apagar")
self.player.set_state(gst.STATE_PLAYING)
else:
self.player.set_state(gst.STATE_NULL)
self.btn_prender.set_label("Prender")
def exit(self, dummy_widget, dummy_data=None):
''' Sale del programa '''
print "Usted pulsó el botón %s" % self.btn_prender.get_label()
self.player.set_state(gst.STATE_NULL)
for player in self.tx_players:
player.set_state(gst.STATE_NULL)
gtk.main_quit()
def on_message(self, dummy_bus, message):
''' Agregar descripción '''
tipo_mensaje = message.type
if tipo_mensaje == gst.MESSAGE_EOS:
self.player.set_state(gst.STATE_NULL)
self.btn_prender.set_label("Prender")
elif tipo_mensaje == gst.MESSAGE_ERROR:
err, debug = message.parse_error()
print "Error: %s" % err, debug
self.player.set_state(gst.STATE_NULL)
self.btn_prender.set_label("Prender")
def on_sync_message(self, dummy_bus, message):
''' Agregar descripción '''
if message.structure is None:
return
message_name = message.structure.get_name()
if message_name == "prepare-xwindow-id":
# Assign the viewport
imagesink = message.src
imagesink.set_property("force-aspect-ratio", True)
imagesink.set_xwindow_id(self.movie_window.window.xid)
def take_pic(self, dummy_widget):
''' Para la reproducción de la cámara y toma una foto '''
self.player.set_state(gst.STATE_PAUSED)
pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, 320, 240)
pixbuf.get_from_drawable(self.movie_window.window,
self.movie_window.get_colormap(),
0, 0, 0, 0, 320, 240)
file_loc = "/tmp/%d" % time.time()
pixbuf.save(file_loc, 'png')
print "La foto la encuentras en %s" % file_loc
self.player.set_state(gst.STATE_PLAYING)
def record_sound(self, dummy_widget):
''' Graba un sonido usando arecord '''
if self.recording is False:
file_name = '/tmp/wav'
self.rec_process = subprocess.Popen(['/usr/bin/arecord',
'--file-type=wav',
'--channels=1',
'--format=S16',
'--rate=48000', file_name])
file_size = 0
while file_size <= 0:
try:
file_size = os.path.getsize(file_name)
except os.error:
time.sleep(0.02)
self.recording = True
self.btn_record.set_label("Detener Grabación")
else:
os.kill(self.rec_process.pid, signal.SIGKILL)
self.rec_process.wait()
self.recording = False
self.btn_record.set_label("Grabar Sonido")
def listen_record(self, dummy_widget):
''' Reproduce un sonido con aplay '''
try:
subprocess.Popen(['/usr/bin/aplay', '/tmp/wav'])
except IOError, exception:
print exception
print self.recording
def buddy_left(self, buddy):
buddy_id = buddy.props.ip4_address
player = self.tx_players.get(buddy_id)
if player is not None:
player.set_state(gst.STATE_NULL)
del self.tx_players[buddy_id]
def joined(self):
if self.player:
self.player.set_state(gst.STATE_PLAYING)
def buddy_joined(self, buddy):
nick = buddy.props.nick
ip = buddy.props.ip4_address
print "Se conecto el companero: %s con ip: %s" % (nick, ip)
# * Gets all the general properties of the buddy
# * Returns: a dbus dict of buddy properties, like nickname, realname, IP address, whether or not this buddy is the laptop owner, etc
# http://wiki.laptop.org/go/Presence_Service_D-Bus_API#org.laptop.Sugar.Presence.Buddy#Methods
port = 5000
parms = "v4l2src ! video/x-raw-yuv, width=320,height=240,framerate=10/1 ! ffmpegcolorspace ! smokeenc keyframe=8 qmax=40 ! udpsink host=%s port=%s" % (ip, port)
print "ejecutando comando:" + parms
if ip not in self.tx_players:
player = gst.parse_launch (parms)
player.set_state(gst.STATE_PLAYING)
self.tx_players[ip] = player
def init(sugar, window):
window.set_title("Ver video")
window.set_default_size(500, 400)
window.connect("destroy", gtk.main_quit, "WM destroy")
frame = VentanaMultimedia()
if sugar:
window.set_canvas(frame)
window.collaboration.set_up(
frame.buddy_joined,
frame.buddy_left,
frame.joined,
)
else:
window.add(frame)
window.show()
gtk.gdk.threads_init()
if __name__ == '__main__':
window = gtk.Window(gtk.WINDOW_TOPLEVEL)
init(False, window)
gtk.main()
|
