Manually check the gstreamer bus for new messages

src/core/ct/gstreamer.py

@@ -13,10 +13,13 @@ import settings
 from bt.file import *
 from bt import signal
 from bt.message import write
+import manager
+import cline
 
 global pipeline
 global time
 global bin
+global bus
 
 pipeline = gst.Pipeline("player")
 
@@ -26,12 +29,8 @@ time = gst.Format(gst.FORMAT_TIME)
 
 # Volume range goes from 0 to 1.0 (before sounding bad)
 volume = gst.element_factory_make("volume","vol")
-
-#level = gst.element_factory_make("level","volume-level")
-
-pipeline.add(bin,volume  )#,level)
-#level.set_property("peak-ttl",0)
-#level.set_property("peak-falloff",20)
+pipeline.add(bin,volume)
+bus = pipeline.get_bus()
 
 
 def load(path):
@@ -81,13 +80,58 @@ def setvol(value):
 	vol.set_property("volume",value )
 
 
+def getProgress(tuple=False):
+	global pipeline
+	global time
+
+	# Don't bother to go on if the pipeline isn't playing
+	if not pipeline.get_state()[1] == gst.STATE_PLAYING:
+		return -1
+
+	position = pipeline.query_position(time)[0]
+	total = pipeline.query_duration(time)[0]
+	if tuple==False:
+		return float(position) / float(total)
+	else:
+		return (position,total)
+
+
+# Draw the progress bar on the command line
+def drawProgress():
+	p = getProgress()
+	if p == -1:
+		return
+	win = settings.get("maxyx")
+	max = int(win[1] * p)
+	if max == 0:
+		cline.message.disp(" "*(win[1]-1)	,win[0]-1)
+	else:
+		cline.message.disp("="*max, win[0]-1)
+
+
+# A callback when there are messages on the bus
+def onMessage(bus,message):
+	if message.type == gst.MESSAGE_EOS:
+		manager.run("next")
+
+
+# Manually check the bus for messages
+def checkBus():
+	global bus
+	if bus.peek() == None:
+		return
+	onMessage(bus,bus.pop())
+
 
 
 def init():
 	# Register signals
 	signal.register("play",play)
 	signal.register("pause",pause)
+	signal.register("cliloop",drawProgress)
+	signal.register("cliloop",checkBus,90)
 
+	# Check for settings values
 	if settings.has("args") == True:
 		input = settings.get("args")
 		if not input == []:

src/core/music.py

@@ -6,16 +6,18 @@ __date__ ="$Feb 5, 2010 7:47:18 PM$"
 
 from bt import plugin
 from bt.message import write
+from bt import sql
 from bt import signal
 
 from ct import gstreamer
+import settings
 
 
 class Plugin(plugin.Plugin):
 	def __init__(self):
 		plugin.Plugin.__init__(self)
 		self.help = "Used to control various aspects of playback"
-		self.usage = "music [load, pause, play, vol]"
+		self.usage = "music [load, whatis, now, pause, play, vol]"
 
 
 	def loadTrack(self,args):
@@ -23,11 +25,33 @@ class Plugin(plugin.Plugin):
 			write("Usage: music load track")
 		join = ' '
 		path = join.join(args)
-		write("Loading: "+path)
+		write("Loading: "+path,True)
 		gstreamer.close()
 		gstreamer.load(path)
 
 
+	def whatIs(self,id):
+		curlib = str( settings.get("curlib") )
+		selstr = "track.name,artist.name,album.name"
+		frmstr = "track,artist,album,libtrack"
+		whrstr = "track.artist=artist.id AND track.album=album.id"
+		whrstr += " AND libtrack.track=track.id AND libtrack.library="+curlib
+		sel = sql.Select(selstr, frmstr, whrstr)
+		result = sel.execute().fetchall()
+	
+		#if len(result) <= id:
+		#	return
+		result = result[id]
+
+		write(result[0])
+		write("By: "+result[1])
+		write("From: "+result[2])
+
+
+	def nowPlaying(self):
+		self.whatIs(settings.get("curtrk"))
+
+
 
 	def run(self, args=None):
 		if args==None or len(args) < 1:
@@ -37,6 +61,13 @@ class Plugin(plugin.Plugin):
 		if args[0] == "load":
 			self.loadTrack(args[1:])
 
+		elif args[0] == "whatis":
+			id = int(args[1])
+			self.whatIs(id)
+
+		elif args[0] == "now":
+			self.nowPlaying()
+
 		elif args[0] == "play":
 			signal.emit("play")