Hallo zusammen,
Ich möchte hier mal ein "kleines" Projekt starten in Bezug auf Gstreamer und einer Benutzeroberfläche Video-Audio Streaming Icecast, ob nun in Python oder einer anderen Programmiersprache. Ziel ist das einfache Live-Streaming per Gstreamer auf verschiedene Live-Tv Portale oder Streaming-Server.
Benutzeroberflächen die Gstreamer nutzen um Video, Audio abzuspielen oder zu wandeln gibt es ja nun reichlich!
Eine Benutzeroberfläche die Video und Audio vereint (verschiedene Quellen auswählbar) und dann zu einem Streamingserver weiterleitet, gibt es nur unbenutzbare Oberflächen, welche zum Teil auch schon eingestellt wurden. Es gibt da natürlich auch große Projekte wie Fluomdo, nur leider viel zu umständlich. TSS wäre auch noch zu erwähnen, aber auch nicht nutzbar da zum Bespiel nur als sound nur /dev/dsp usw.. auszuwählen ist.
Gstreamer Launch:
Das ganze per shell zu realisieren ist recht einfach, siehe Code
gst-launch v4l2src ! queue ! ffmpegcolorspace ! videoscale ! video/x-raw-yuv,width=320,height=240 ! videorate skip-to-first=1 ! video/x-raw-yuv,framerate=16/1 ! theoraenc speed-level=2 bitrate =96 ! queue ! oggmux name=mux jackaudiosrc connect=none ! audio/x-raw-float, channels=2 ! queue ! audioconvert ! vorbisenc quality=0.2 ! queue ! mux. mux. ! queue ! shout2send ip=xxxx port=xxxxx username=xxxx password=xxxx mount=/test.ogg streamname=xxxxx description=xxxx genre=Mix
Diese Beispiel zeigt einen Video-Stream, Quelle ist eine Webcam und IDJC (Sound-Server Jackd)zum Musik mixen, das ganze wird auf einen Icecast-Server gestreamt. Funktioniert auch 100%!
Wer also Ideen hat und gerne mitmachen möchte, auf gehts!
MfG Ralf
Update:
kleines pythonsrcipt .
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 | #!/usr/bin/env python import sys, os import pango import pygtk, gtk, gobject import pygst pygst.require("0.10") import gst class GTK_Main: def __init__(self): window = gtk.Window(gtk.WINDOW_TOPLEVEL) window.set_title("Webcam Streamer") window.set_default_size(1000, 700) window.connect("destroy", gtk.main_quit, "WM destroy") self.sstate = 'preparing' red=gtk.gdk.color_parse('grey') eb=gtk.EventBox() eb.modify_bg(gtk.STATE_NORMAL, red) window.add(eb) windows = gtk.ScrolledWindow() windows.set_size_request(1000, 700) eb.add(windows) hbox0 = gtk.HBox(True) windows.add_with_viewport(hbox0) vbox = gtk.VBox() vbox.set_border_width(10) 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.button = gtk.Button("Start Stream") self.button.connect("clicked", self.start_stop) hbox.pack_start(self.button, False) self.button2 = gtk.Button("Quit") self.button2.connect("clicked", self.exit) hbox.pack_start(self.button2, False) self.statuslabel = gtk.Label() self.statuslabel.modify_font(pango.FontDescription("sans bold 14")) self.statuslabel.set_justify(gtk.JUSTIFY_RIGHT); self.statuslabel.set_markup("<span background='blue'>Camera started...Ready to stream</span>") vbox.pack_start(self.statuslabel, False) hbox0.pack_start(vbox, False) vbox2 = gtk.VBox() vbox2.set_border_width(10) self.devlabel = gtk.Label("Input devices") self.devlabel.modify_font(pango.FontDescription("sans bold 10")) self.devlabel.set_justify(gtk.JUSTIFY_RIGHT); vbox2.pack_start(self.devlabel, False) vbox2.pack_start(gtk.HSeparator(), False) hbox2 = gtk.HBox(True) vbox2.pack_start(hbox2, False) self.combodevice = gtk.combo_box_new_text() self.combodevice.append_text("/dev/video0") self.combodevice.append_text("/dev/video1") self.combodevice.append_text("/dev/video2") self.combodevice.append_text("/dev/video3") self.combodevice.set_active(0) hbox2.pack_start(gtk.Label("Video device : "), True) hbox2.pack_start(self.combodevice, True) hbox21 = gtk.HBox(True) vbox2.pack_start(hbox21, False) self.vdevicetype = gtk.combo_box_new_text() self.vdevicetype.append_text("v4l") self.vdevicetype.append_text("v4l2") self.vdevicetype.set_active(1) hbox21.pack_start(gtk.Label("Driver type : "), True) hbox21.pack_start(self.vdevicetype, True) hbox3 = gtk.HBox(True) vbox2.pack_start(hbox3, False) hbox3.pack_start(gtk.Label("Audio device : "), True) self.comboadevice = gtk.combo_box_new_text() self.comboadevice.append_text(" jackaudiosrc") #geht zwar, ist aber nicht sauber durch das Leerzeichen davor self.comboadevice.append_text("/dev/dsp0") self.comboadevice.append_text("/dev/dsp1") self.comboadevice.append_text("/dev/dsp2") self.comboadevice.append_text("/dev/dsp3") self.comboadevice.set_active(0) hbox3.pack_start(self.comboadevice, True) self.vparamslabel = gtk.Label("Video parameters") self.vparamslabel.set_justify(gtk.JUSTIFY_RIGHT); self.vparamslabel.modify_font(pango.FontDescription("sans bold 10")) vbox2.pack_start(self.vparamslabel, False) vbox2.pack_start(gtk.HSeparator(), False) hbox4 = gtk.HBox(True) vbox2.pack_start(hbox4, False) self.combovsize = gtk.combo_box_new_text() self.combovsize.append_text("160x128") self.combovsize.append_text("320x240") self.combovsize.append_text("360x288") self.combovsize.append_text("640x480") self.combovsize.append_text("720x576") self.combovsize.set_active(1) hbox4.pack_start(gtk.Label("Video size : "), True) hbox4.pack_start(self.combovsize, True) hbox5 = gtk.HBox(True) vbox2.pack_start(hbox5, False) hbox5.pack_start(gtk.Label("Framerate : "), True) self.comboframerate = gtk.combo_box_new_text() self.comboframerate.append_text("25") self.comboframerate.append_text("25:2") self.comboframerate.append_text("25:3") self.comboframerate.append_text("25:4") self.comboframerate.append_text("25:5") self.comboframerate.set_active(0) hbox5.pack_start(self.comboframerate, True) hbox6 = gtk.HBox(True) vbox2.pack_start(hbox6, False) hbox6.pack_start(gtk.Label("Video quality : "), True) self.combovquality = gtk.combo_box_new_text() self.combovquality.append_text("0") self.combovquality.append_text("1") self.combovquality.append_text("2") self.combovquality.append_text("3") self.combovquality.append_text("4") self.combovquality.append_text("5") self.combovquality.append_text("6") self.combovquality.append_text("7") self.combovquality.append_text("8") self.combovquality.append_text("9") self.combovquality.append_text("10") self.combovquality.append_text("11") self.combovquality.append_text("12") self.combovquality.append_text("13") self.combovquality.append_text("14") self.combovquality.append_text("15") self.combovquality.append_text("16") self.combovquality.append_text("17") self.combovquality.append_text("18") self.combovquality.append_text("19") self.combovquality.append_text("20") self.combovquality.append_text("21") self.combovquality.append_text("22") self.combovquality.append_text("23") self.combovquality.append_text("24") self.combovquality.append_text("25") self.combovquality.append_text("26") self.combovquality.append_text("27") self.combovquality.append_text("28") self.combovquality.append_text("29") self.combovquality.append_text("30") self.combovquality.append_text("31") self.combovquality.append_text("32") self.combovquality.append_text("33") self.combovquality.append_text("34") self.combovquality.append_text("35") self.combovquality.append_text("36") self.combovquality.append_text("37") self.combovquality.append_text("38") self.combovquality.append_text("39") self.combovquality.append_text("40") self.combovquality.append_text("41") self.combovquality.append_text("42") self.combovquality.append_text("43") self.combovquality.append_text("44") self.combovquality.append_text("45") self.combovquality.append_text("46") self.combovquality.append_text("47") self.combovquality.append_text("48") self.combovquality.append_text("49") self.combovquality.append_text("50") self.combovquality.append_text("51") self.combovquality.append_text("52") self.combovquality.append_text("53") self.combovquality.append_text("54") self.combovquality.append_text("55") self.combovquality.append_text("56") self.combovquality.append_text("57") self.combovquality.append_text("58") self.combovquality.append_text("59") self.combovquality.append_text("60") self.combovquality.append_text("61") self.combovquality.append_text("62") self.combovquality.append_text("63") self.combovquality.set_active(16) hbox6.pack_start(self.combovquality, True) self.aparamslabel = gtk.Label("Audio parameters") self.aparamslabel.set_justify(gtk.JUSTIFY_RIGHT); self.aparamslabel.modify_font(pango.FontDescription("sans bold 10")) vbox2.pack_start(self.aparamslabel, False) vbox2.pack_start(gtk.HSeparator(), False) hbox7 = gtk.HBox(True) vbox2.pack_start(hbox7, False) self.comboaquality = gtk.combo_box_new_text() self.comboaquality.append_text("-0.1") self.comboaquality.append_text("0") self.comboaquality.append_text("0.1") self.comboaquality.append_text("0.2") self.comboaquality.append_text("0.3") self.comboaquality.append_text("0.4") self.comboaquality.append_text("0.5") self.comboaquality.append_text("0.6") self.comboaquality.append_text("0.7") self.comboaquality.append_text("0.8") self.comboaquality.append_text("0.9") self.comboaquality.append_text("1.0") self.comboaquality.set_active(3) hbox7.pack_start(gtk.Label("Audio quality : "), True) hbox7.pack_start(self.comboaquality, True) hbox8 = gtk.HBox(True) vbox2.pack_start(hbox8, False) hbox8.pack_start(gtk.Label("Audio channels : "), True) self.comboachannels = gtk.combo_box_new_text() self.comboachannels.append_text("1") self.comboachannels.append_text("2") self.comboachannels.set_active(1) hbox8.pack_start(self.comboachannels, True) hbox9 = gtk.HBox(True) vbox2.pack_start(hbox9, False) hbox9.pack_start(gtk.Label("Audio rate : "), True) self.comboarate = gtk.combo_box_new_text() self.comboarate.append_text("11025") self.comboarate.append_text("22050") self.comboarate.append_text("44100") self.comboarate.append_text("48000") self.comboarate.set_active(2) hbox9.pack_start(self.comboarate, True) self.sconfiglabel = gtk.Label("Server Configuration") self.sconfiglabel.set_justify(gtk.JUSTIFY_RIGHT); self.sconfiglabel.modify_font(pango.FontDescription("sans bold 10")) vbox2.pack_start(self.sconfiglabel, False) vbox2.pack_start(gtk.HSeparator(), False) hbox10 = gtk.HBox(True) vbox2.pack_start(hbox10, False) hbox10.pack_start(gtk.Label("Server : "), True) self.servername = gtk.Entry() self.servername.set_text("xxxxxx") hbox10.pack_start(self.servername, True) hbox11 = gtk.HBox(True) vbox2.pack_start(hbox11, False) hbox11.pack_start(gtk.Label("Port : "), True) self.portnumber = gtk.Entry() self.portnumber.set_text("xxxx") hbox11.pack_start(self.portnumber, True) hbox12 = gtk.HBox(True) vbox2.pack_start(hbox12, False) hbox12.pack_start(gtk.Label("Mountpoint : "), True) self.mountpoint = gtk.Entry() self.mountpoint.set_text("source") hbox12.pack_start(self.mountpoint, True) hbox13 = gtk.HBox(True) vbox2.pack_start(hbox13, False) hbox13.pack_start(gtk.Label("Password : "), True) self.password = gtk.Entry() self.password.set_text("xxxxxxx") hbox13.pack_start(self.password, True) self.smdatalabel = gtk.Label("Icecast Meta Data") self.smdatalabel.set_justify(gtk.JUSTIFY_RIGHT); self.smdatalabel.modify_font(pango.FontDescription("sans bold 10")) vbox2.pack_start(self.smdatalabel, False) vbox2.pack_start(gtk.HSeparator(), False) hbox14 = gtk.HBox(True) vbox2.pack_start(hbox14, False) hbox14.pack_start(gtk.Label("Name : "), True) self.name = gtk.Entry() self.name.set_text("") hbox14.pack_start(self.name, True) hbox15 = gtk.HBox(True) vbox2.pack_start(hbox15, False) hbox15.pack_start(gtk.Label("Description : "), True) self.description = gtk.Entry() self.description.set_text("") hbox15.pack_start(self.description, True) hbox16 = gtk.HBox(True) vbox2.pack_start(hbox16, False) hbox16.pack_start(gtk.Label("Genre : "), True) self.genre = gtk.Entry() self.genre.set_text("") hbox16.pack_start(self.genre, True) hbox17 = gtk.HBox(True) vbox2.pack_start(hbox17, False) hbox17.pack_start(gtk.Label("Url : "), True) self.url = gtk.Entry() self.url.set_text("") hbox17.pack_start(self.url, True) self.srecordlabel = gtk.Label("Recording") self.srecordlabel.set_justify(gtk.JUSTIFY_RIGHT); self.srecordlabel.modify_font(pango.FontDescription("sans bold 10")) vbox2.pack_start(self.srecordlabel, False) vbox2.pack_start(gtk.HSeparator(), False) hbox18 = gtk.HBox(True) vbox2.pack_start(hbox18, False) hbox18.pack_start(gtk.Label("Dump to file : "), True) self.recfile = gtk.Entry() self.recfile.set_text(".ogg") hbox18.pack_start(self.recfile, True) self.fcbutton = gtk.Button("Browse") self.fcbutton.connect("clicked", self.on_file_dialog) hbox18.pack_start(self.fcbutton, True) hbox0.pack_start(vbox2, False) window.show_all() # Set up the gstreamer pipeline devname = self.combodevice.get_active_text() if self.vdevicetype.get_active_text() == "v4l": self.player = gst.parse_launch ("v4lsrc device="+devname+" ! video/x-raw-yuv,width=320,height=240 ! autovideosink") else: self.player = gst.parse_launch ("v4l2src device="+devname+" ! video/x-raw-yuv,width=320,height=240 ! 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.player.set_state(gst.STATE_PLAYING) def stop_stream(self): self.button.set_label("Start Stream") self.player.set_state(gst.STATE_NULL) devname = self.combodevice.get_active_text() if self.vdevicetype.get_active_text() == "v4l": self.player = gst.parse_launch ("v4lsrc device="+devname+" ! video/x-raw-yuv,width=320,height=240 ! autovideosink") else: self.player = gst.parse_launch ("v4l2src device="+devname+" ! video/x-raw-yuv,width=320,height=240 ! 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.player.set_state(gst.STATE_PLAYING) def stop_cam(self): self.button.set_label("Start Stream") self.player.set_state(gst.STATE_NULL) def start_stop(self, w): if self.button.get_label() == "Start Stream": self.button.set_label("Stop Stream") self.player.set_state(gst.STATE_NULL) dumpfile = self.recfile.get_text() if dumpfile == ".ogg": print "No dump file" else: print "Dumping to :", dumpfile pipelist= [] devname = self.combodevice.get_active_text() if self.vdevicetype.get_active_text() == "v4l": pipelist.append("v4lsrc device="+devname) else: pipelist.append("v4l2src device="+devname) pipelist.append("video/x-raw-yuv,width=320,height=240") pipelist.append("queue") pipelist.append("videorate") framerate=self.comboframerate.get_active_text() framerate=framerate.replace(":","/") pipelist.append("ffmpegcolorspace") pipelist.append("tee name=tscreen") pipelist.append("queue") pipelist.append("autovideosink tscreen.") pipelist.append("queue") vquality = self.combovquality.get_active_text() pipelist.append("theoraenc quality="+vquality) pipelist.append("queue") #audio input adevice=self.comboadevice.get_active_text() pipelist.append("oggmux name=mux" +adevice) arate=self.comboarate.get_active_text() achannels=self.comboachannels.get_active_text() pipelist.append("audio/x-raw-float,rate="+arate+",channels="+achannels) pipelist.append("queue") pipelist.append("audioconvert") aquality=self.comboaquality.get_active_text() pipelist.append("vorbisenc quality="+aquality) pipelist.append("queue") pipelist.append("mux. mux.") pipelist.append("queue") #recording part if dumpfile != ".ogg": pipelist.append("tee name= tfile") pipelist.append("queue") pipelist.append("filesink location="+dumpfile+" tfile.") pipelist.append("queue") #last but not least streaming server=self.servername.get_text() port=self.portnumber.get_text() mount=self.mountpoint.get_text() password=self.password.get_text() name=self.name.get_text() sdesc=self.description.get_text() sgenre=self.genre.get_text() surl=self.url.get_text() pipelist.append("shout2send ip="+server+" port="+port+" mount="+mount+" password="+password+" name="+name+" description="+sdesc+" genre="+sgenre+" url="+surl) # ouf! pipeline = " ! ".join(pipelist) print "gstreamer command : ", pipeline self.player = gst.parse_launch (pipeline) 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.player.set_state(gst.STATE_PLAYING) self.statuslabel.set_markup("<span background='green'>Streaming at "+framerate+" frames per second</span>") self.sstate = 'running' else: self.statuslabel.set_markup("<span background='blue'>Camera started...Ready to stream</span>") self.stop_stream() self.sstate = 'preparing' def exit(self, widget, data=None): gtk.main_quit() def on_file_dialog(self, w): self.fchooser = gtk.FileChooserDialog(title=None,action=gtk.FILE_CHOOSER_ACTION_SAVE, buttons=(gtk.STOCK_CANCEL,gtk.RESPONSE_CANCEL,gtk.STOCK_OPEN,gtk.RESPONSE_OK)) self.fchooser.set_default_response(gtk.RESPONSE_OK) response = self.fchooser.run() if response == gtk.RESPONSE_OK: self.recfile.set_text(self.fchooser.get_filename()) response = self.fchooser.destroy() def on_message(self, bus, message): t = message.type if t == gst.MESSAGE_ERROR: if self.sstate == 'preparing': self.statuslabel.set_markup("<span background='red'>Error initializing camera...Check your devices</span>") self.stop_cam() if self.sstate == 'running': self.statuslabel.set_markup("<span background='red'>Error starting stream...Check your parameters</span>") self.stop_stream() self.sstate = 'preparing' err, debug = message.parse_error() print "Error: %s" % err, debug def on_sync_message(self, bus, message): 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) GTK_Main() gtk.gdk.threads_init() gtk.main() |
Ungültiges Makro
http://webjab.de/stream.jpg]]Dieses Makro ist nicht verfügbar
habe es etwas abgewandelt, jackaudioscr mit eingefügt, da ist aber der code nicht ganz sauber, damit ich keine Probleme bekommen habe musst ich vor jackaudisrc ein leerzeichen einfügen, da sonst weiter unten bei der Abfrage pipelist.append("oggmux name=mux" +adevice) im debug folgendes raus kommt, oggmux name=muxjackaudiosrc und das geht nicht;) so muss es eigentlich sein oggmux name=mux jackaudiosrc, dann passt es.
Des weitern wäre noch zu überlegen die audiovideosink zu entfernen, zu mindest dann wenn Live gestreamt wird, kostet nur Resourcen. (Bildausgabe während des Live-Stream).
Ansonsten wäre bis jetzt zu sagen das das Ganze sehr ordentlich läuft. Weiter Code-Vorschläge und Verbesserungen natürlich erwünscht!!!
Update: Ein Video dazu gibt es auf Youtube.de http://www.youtube.com/watch?v=PNrwYJQXTHg
MfG Ralf