def _detect_camera(self):
v4l2src = gst.element_factory_make('v4l2src')
if v4l2src.props.device_name is None:
return
self._has_camera = True
# Figure out if we can place a framerate limit on the v4l2 element,
# which in theory will make it all the way down to the hardware.
# ideally, we should be able to do this by checking caps. However, I
# can't find a way to do this (at this time, XO-1 cafe camera driver
# doesn't support framerate changes, but gstreamer caps suggest
# otherwise)
pipeline = gst.Pipeline()
caps = gst.Caps('video/x-raw-yuv,framerate=10/1')
fsink = gst.element_factory_make('fakesink')
pipeline.add(v4l2src, fsink)
v4l2src.link(fsink, caps)
self._can_limit_framerate = pipeline.set_state(gst.STATE_PAUSED) != gst.STATE_CHANGE_FAILURE
pipeline.set_state(gst.STATE_NULL)
def constructPipeline(self):
"""
Add and link elements in a GStreamer pipeline.
"""
# Create the pipeline instance
self.player = gst.Pipeline()
# Define pipeline elements
self.filesrc = gst.element_factory_make("filesrc")
self.filesrc.set_property("location", self.inFileLocation)
self.decodebin = gst.element_factory_make("decodebin")
# Add elements to the pipeline
self.player.add(self.filesrc, self.decodebin)
# Link elements in the pipeline.
gst.element_link_many(self.filesrc, self.decodebin)
self.constructAudioPipeline()
self.constructVideoPipeline()
def __init__(self, elementname="fsrtpconference"):
self.pipeline = gst.Pipeline()
signal.signal(signal.SIGINT, self.int_handler)
notifier = farsight.ElementAddedNotifier()
notifier.connect("element-added", self.element_added_cb)
notifier.add(self.pipeline)
self.pipeline.get_bus().set_sync_handler(self.sync_handler)
self.pipeline.get_bus().add_watch(self.async_handler)
self.conf = gst.element_factory_make(elementname)
# Sets lets our own cname
self.conf.set_property("sdes-cname", mycname)
self.pipeline.add(self.conf)
if VIDEO:
self.videosource = FsUIVideoSource(self.pipeline)
self.videosession = FsUISession(self.conf, self.videosource)
if AUDIO:
self.audiosource = FsUIAudioSource(self.pipeline)
self.audiosession = FsUISession(self.conf, self.audiosource)
self.adder = None
self.pipeline.set_state(gst.STATE_PLAYING)
def start(self, pos):
songs = self.list_of_songs()
if (self.STATUS != 0):
self.stop()
self.__pipeline = gst.Pipeline("player")
source = gst.element_factory_make("gnomevfssrc", "gvfs-source")
decoder = gst.element_factory_make("mad", "mp3-decoder")
sink = gst.element_factory_make("alsasink", "alsa-output")
self.__pipeline.add(source, decoder, sink)
gst.element_link_many(source, decoder, sink)
bus = self.__pipeline.get_bus()
bus.add_signal_watch()
bus.connect("message", self.bus_call)
self.__pipeline.get_by_name("gvfs-source").set_property(
"location", songs[pos])
print songs[pos]
self.__pipeline.set_state(gst.STATE_PLAYING)
self.STATUS = 1
def _setup_pipe(self):
# have to fix the caps because gst cant deal with having them change.
# TODO: make this a preference and/or autodetect optimal based on the
# output device - if its a 48000hz-native chip we dont want to send it
# 44100hz audio all the time.
# Or better yet, fix gst to handle changing caps :D
self.caps = gst.Caps("audio/x-raw-int, "
"endianness=(int)1234, "
"signed=(boolean)true, "
"width=(int)16, "
"depth=(int)16, "
"rate=(int)44100, "
"channels=(int)2")
self._pipe = gst.Pipeline()
self.adder = gst.element_factory_make("adder")
self.audio_queue = gst.element_factory_make("queue")
self._load_queue_values()
self._pipe.add(self.adder, self.audio_queue, self._mainbin)
self.adder.link(self.audio_queue)
self.audio_queue.link(self._mainbin)
def __init__(self):
self.converter = gst.Pipeline("converter")
source = gst.element_factory_make("filesrc", "file-source")
decode = gst.element_factory_make("decodebin", "decode")
self.decode = gst.element_factory_make("wavenc", "wave-enc")
audioconv = gst.element_factory_make("audioconvert", "converter")
filesink = gst.element_factory_make("filesink", "file-output")
self.converter.add(source, decode, self.decode, audioconv, filesink)
gst.element_link_many(source, decode)
gst.element_link_many(self.decode, audioconv, filesink)
filepath = self.entry.get_text()
if os.path.isfile(filepath):
self.player.get_by_name("file-source").set_property(
"location", filepath)
self.player.set_state(gst.STATE_PLAYING)
else:
self.player.set_state(gst.STATE_NULL)
self.button.set_label("Start")
def __init__(self, location):
# The pipeline
self.pipeline = gst.Pipeline()
# Create bus and connect several handlers
self.bus = self.pipeline.get_bus()
self.bus.add_signal_watch()
self.bus.connect('message::eos', self.on_eos)
self.bus.connect('message::tag', self.on_tag)
self.bus.connect('message::error', self.on_error)
# Create elements
self.src = gst.element_factory_make('filesrc')
self.dec = gst.element_factory_make('decodebin')
self.conv = gst.element_factory_make('audioconvert')
self.rsmpl = gst.element_factory_make('audioresample')
self.sink = gst.element_factory_make('alsasink')
# Set 'location' property on filesrc
self.src.set_property('location', location)
# Connect handler for 'new-decoded-pad' signal
self.dec.connect('new-decoded-pad', self.on_new_decoded_pad)
# Add elements to pipeline
self.pipeline.add(self.src, self.dec, self.conv, self.rsmpl, self.sink)
# Link *some* elements
# This is completed in self.on_new_decoded_pad()
self.src.link(self.dec)
gst.element_link_many(self.conv, self.rsmpl, self.sink)
# Reference used in self.on_new_decoded_pad()
self.apad = self.conv.get_pad('sink')
# The MainLoop
self.mainloop = gobject.MainLoop()
# And off we go!
self.pipeline.set_state(gst.STATE_PLAYING)
self.mainloop.run()
def createPipeline(self, w):
"""Given a window, creates a pipeline and connects it to the window"""
# code will make the ximagesink output in the specified window
def set_xid(window):
gtk.gdk.threads_enter()
videosink.set_xwindow_id(window.window.xid)
videosink.expose()
gtk.gdk.threads_leave()
# this code receives the messages from the pipeline. if we
# need to set X11 id, then we call set_xid
def bus_handler(unused_bus, message):
if message.type == gst.MESSAGE_ELEMENT:
if message.structure.get_name() == 'prepare-xwindow-id':
set_xid(w)
return gst.BUS_PASS
# create our pipeline, and connect our bus_handler
self.pipeline = gst.Pipeline()
bus = self.pipeline.get_bus()
bus.set_sync_handler(bus_handler)
videosink = gst.element_factory_make("xvimagesink", "sink")
videosink.set_property("force-aspect-ratio", True)
videosink.set_property("handle-expose", True)
#videosink = gst.element_factory_make("v4l2sink", "sink")
#videosink.set_property("device", "/dev/video7")
scale = gst.element_factory_make("videoscale", "scale")
cspace = gst.element_factory_make("ffmpegcolorspace", "cspace")
audiosink = gst.element_factory_make("jackaudiosink")
audioconvert = gst.element_factory_make("audioconvert")
# pipeline looks like: ... ! cspace ! scale ! sink
# ... ! audioconvert ! autoaudiosink
self.pipeline.add(cspace, scale, videosink, audiosink, audioconvert)
scale.link(videosink)
cspace.link(scale)
audioconvert.link(audiosink)
return (self.pipeline, (cspace, audioconvert))
def convert(flacfile, mp3file):
print "Converting %s... " % flacfile
src = gst.element_factory_make("filesrc", "src")
src.set_property("location", flacfile)
#src_pad = src.get_pad("src")
flac = gst.element_factory_make("flacdec", "decoder")
mp3 = gst.element_factory_make("lame", "encoder")
mp3.set_property("bitrate", 192)
#mp3.set_property("quality", 2)
#mp3.set_property("vbr", 4)
#mp3.set_property("vbr-quality", 2)
id3 = gst.element_factory_make("id3v2mux", "tagger")
#xing = gst.element_factory_make("xingmux", "vbrfixer")
sink = gst.element_factory_make("filesink", "sink")
sink.set_property("location", mp3file)
bin = gst.Pipeline()
bin.add(src,flac,mp3,id3,sink)
gst.element_link_many(src,flac,mp3,id3,sink)
#bin.connect("error", error_cb)
bin.set_state(gst.STATE_PLAYING)
print "GO"
bus = bin.get_bus()
while 1:
msg = bus.poll(gst.MESSAGE_EOS | gst.MESSAGE_ERROR, gst.SECOND)
if msg:
print msg
print "DUN"
break
print "STOP"
bin.set_state(gst.STATE_NULL);
print "Done.\n"
def save_file(self, uri):
pipeline = gst.Pipeline()
playbin = gst.element_factory_make("playbin")
pipeline.add(playbin)
playbin.set_property("uri", self.playbin.get_property("uri"))
bin = gst.Bin("speed-bin")
speedchanger = gst.element_factory_make("pitch")
speedchanger.set_property("tempo",
self.speedchanger.get_property("tempo"))
speedchanger.set_property("pitch",
self.speedchanger.get_property("pitch"))
bin.add(speedchanger)
audioconvert = gst.element_factory_make("audioconvert")
bin.add(audioconvert)
encoder = gst.element_factory_make("wavenc")
bin.add(encoder)
filesink = gst.element_factory_make("filesink")
bin.add(filesink)
filesink.set_property("location", uri)
gst.element_link_many(speedchanger, audioconvert)
gst.element_link_many(audioconvert, encoder)
gst.element_link_many(encoder, filesink)
sink_pad = gst.GhostPad("sink", speedchanger.get_pad("sink"))
bin.add_pad(sink_pad)
playbin.set_property("audio-sink", bin)
bus = playbin.get_bus()
bus.add_signal_watch()
bus.connect("message", self.on_message)
pipeline.set_state(gst.STATE_PLAYING)
return (pipeline, playbin)
def __init__(self):
window = gtk.Window(gtk.WINDOW_TOPLEVEL)
window.set_title("Intercepting web-cam")
window.set_default_size(500, 400)
window.connect("destroy", gtk.main_quit, "WM destroy")
vbox = gtk.VBox()
window.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.button = gtk.Button("Start")
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)
hbox.add(gtk.Label())
window.show_all()
# Set up the gstreamer pipeline
self.player = gst.Pipeline("player")
src = gst.element_factory_make("v4l2src")
cf = gst.element_factory_make("capsfilter")
WIDTH, HEIGHT, FRAMERATE = 640, 480, 15
caps = gst.caps_from_string(
"video/x-raw-yuv,format=(fourcc)YUY2,width=%d,height=%d,framerate=%d/1"
% (WIDTH, HEIGHT, FRAMERATE))
cf.set_property("caps", caps)
filter = NewElement()
sink = gst.element_factory_make('autovideosink')
self.player.add(src, cf, filter, sink)
gst.element_link_many(src, cf, filter, sink)
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)
def search(self, db, entry, is_playing, on_search_completed, *args):
# only search if we're not already playing this entry
if is_playing:
print "not checking for embedded cover art in playing entry"
on_search_completed(self, entry, None, *args)
return
# only search local files
uri = db.entry_get(entry, rhythmdb.PROP_LOCATION)
if uri.startswith("file://") is False:
print "not checking for embedded cover art in non-local entry %s" % uri
on_search_completed(self, entry, None, *args)
return
self.entry = entry
self.args = args
self.callback = on_search_completed
self.args = args
self.got_pixbuf = False
# set up pipeline and bus callbacks
self.pipeline = gst.Pipeline()
bus = self.pipeline.get_bus()
bus.add_signal_watch()
bus.connect("message::tag", self._tag_cb)
bus.connect("message::state-changed", self._state_changed_cb)
bus.connect("message::error", self._error_cb)
# create elements
self.src = gst.element_make_from_uri(gst.URI_SRC, uri)
self.decodebin = gst.element_factory_make("decodebin2")
self.sink = gst.element_factory_make("fakesink")
self.decodebin.connect('new-decoded-pad', self._decoded_pad_cb)
self.pipeline.add(self.src, self.decodebin, self.sink)
self.src.link(self.decodebin)
self.sinkpad = self.sink.get_pad('sink')
self.pipeline.set_state(gst.STATE_PAUSED)
def __init__(self, tw):
''' Set up the stream. We save to a raw .wav file and then
convert the sound to .ogg for saving. '''
datapath = get_path(tw.parent, 'instance')
self.capture_file = os.path.join(datapath, 'output.wav')
self.save_file = os.path.join(datapath, 'output.ogg')
self._eos_cb = None
self._can_limit_framerate = False
self._recording = False
self._audio_transcode_handler = None
self._transcode_id = None
self._pipeline = gst.Pipeline("Record")
self._create_audiobin()
self._pipeline.add(self._audiobin)
bus = self._pipeline.get_bus()
bus.add_signal_watch()
bus.connect('message', self._bus_message_handler)
def __init__(self):
self.player = gst.Pipeline("player")
source = gst.element_factory_make("filesrc", "file-source")
decoder = gst.element_factory_make("mad", "mp3-decoder")
conv = gst.element_factory_make("audioconvert", "converter")
sink = gst.element_factory_make("alsasink", "alsa-output")
self.player.add(source, decoder, conv, sink)
gst.element_link_many(source, decoder, conv, sink)
self.state = 'stop'
bus = self.player.get_bus()
bus.add_signal_watch()
bus.connect("message", self.on_message)
self.play_list = Player_list([
'/home/root/simple-todo-read-only/mp3/ay.mp3',
'/home/root/simple-todo-read-only/mp3/hx.mp3',
'/home/root/simple-todo-read-only/mp3/kxbsn.mp3'
])
def __init__(self):
window = gtk.Window(gtk.WINDOW_TOPLEVEL)
window.set_title("Videotestsrc-Player")
window.set_default_size(300, -1)
window.connect("destroy", gtk.main_quit, "WM destroy")
vbox = gtk.VBox()
window.add(vbox)
self.button = gtk.Button("Start")
self.button.connect("clicked", self.start_stop)
vbox.add(self.button)
window.show_all()
self.player = gst.Pipeline("player")
source = gst.element_factory_make("videotestsrc", "video-source")
sink = gst.element_factory_make("xvimagesink", "video-output")
caps = gst.Caps("video/x-raw-yuv, width=320, height=230")
filter = gst.element_factory_make("capsfilter", "filter")
filter.set_property("caps", caps)
self.player.add(source, filter, sink)
gst.element_link_many(source, filter, sink)
def __init__(self, ip='192.168.5.52'):
gobject.GObject.__init__(self)
self.pipeline = gst.Pipeline()
desktop = ximagesrc_bin()
video_out = Out_lan_smokeenc_bin(ip)
self.pipeline.add(desktop)
self.pipeline.add(video_out)
desktop.link(video_out)
self.bus = self.pipeline.get_bus()
self.bus.add_signal_watch()
self.bus.connect('message', self.__on_mensaje)
self.bus.enable_sync_message_emission()
self.bus.connect('sync-message', self.__sync_message)
self.pipeline.set_state(gst.STATE_PLAYING)
def __init__(self):
self.pipeline = gst.Pipeline()
#buttons
self.play_button = gtk.Button(stock=gtk.STOCK_MEDIA_PLAY)
self.play_button.connect("clicked", self.play_onclick)
self.stop_button = gtk.Button(stock=gtk.STOCK_MEDIA_STOP)
self.stop_button.connect("clicked", self.stop_onclick)
self.quit_button = gtk.Button(stock=gtk.STOCK_QUIT)
self.quit_button.connect("clicked", self.quit_onclick)
self.buttons = gtk.HButtonBox()
self.buttons.add(self.play_button)
self.buttons.add(self.stop_button)
self.buttons.add(self.quit_button)
#pack window
self.window = gtk.Window()
self.vbox = gtk.VBox() # vertical box
self.vbox.pack_start(self.buttons)
self.window.add(self.vbox)
self.window.connect("destroy", self.destroy)
self.window.show_all()
def __init__(self):
pipeline = gst.Pipeline("time lapse")
source = gst.element_factory_make("v4lsrc", "source")
text = gst.element_factory_make("cairotextoverlay")
tee = gst.element_factory_make("tee")
self.caps = gst.Caps("video/x-raw-yuv, width=640,height=480")
filter = gst.element_factory_make("capsfilter", "filter")
filter.set_property("caps", self.caps)
text.set_property("halign", "left")
text.set_property("valign", "bottom")
pipeline.add(source, filter, text, tee)
#link all elements
gst.element_link_many(source, filter, text, tee)
self.pipeline = pipeline
self.text = text
self.tee = tee
self.outputs = []
def _create_pipeline_v0(self):
self.sample_rate = None
self.pipeline = gst.Pipeline(self._instanceName)
# Create an AppSrc to push data in; the format will be determined later
self.source = gst.element_factory_make('appsrc', 'source')
self.pipeline.add(self.source)
# Create sample rate and format converters to help with connecting
converter = gst.element_factory_make('audioconvert', 'converter')
resampler = gst.element_factory_make('audioresample', 'resampler')
self.pipeline.add(converter)
self.pipeline.add(resampler)
# Create an ALSA sink for output
sink = gst.element_factory_make("alsasink", "sink")
self.pipeline.add(sink)
self.source.link(converter)
converter.link(resampler)
resampler.link(sink)
def ripTrack(device, trackNo, filename, callbackProgress, callbackComplete):
cdp = gst.element_factory_make("cdparanoia", "ripper")
cdp.set_property("device", device)
cdp.set_property("paranoia-mode", 4)
cdp.set_property("abort-on-skip", True)
track_format = gst.format_get_by_nick("track")
src_pad = cdp.get_pad("src")
flac = gst.element_factory_make("flacenc", "encoder")
sink = gst.element_factory_make("filesink", "sink")
sink.set_property("location", filename)
bin = gst.Pipeline()
bin.add_many(cdp, flac, sink)
gst.element_link_many(cdp, flac, sink)
bin.set_state(gst.STATE_PAUSED)
seek = gst.event_new_segment_seek(
track_format | gst.SEEK_METHOD_SET | gst.SEEK_FLAG_FLUSH, trackNo - 1,
trackNo)
src_pad.send_event(seek)
res = bin.set_state(gst.STATE_PLAYING)
lastsecs = -1
while bin.iterate():
nanos = src_pad.query(gst.QUERY_POSITION, gst.FORMAT_TIME)
length = src_pad.query(gst.QUERY_TOTAL, gst.FORMAT_TIME)
secs = nanos / gst.SECOND
lensecs = length / gst.SECOND
if secs <> lastsecs and secs > 0:
#print "secs %d, lensecs %d, rate %f" % (secs,lensecs, rate)
callbackProgress(trackNo, secs, lensecs)
lastsecs = secs
res = bin.set_state(gst.STATE_NULL)
callbackComplete(trackNo)
def _GetAudioPipe(self, host, port, password):
pipe = gst.Pipeline('olpc-audio')
caps = gst.Caps('audio/x-raw-int,rate=8000,channels=1,depth=8')
elems = []
def Add(name, properties=None):
elem = gst.element_factory_make(name, name)
properties = properties or {}
for property, value in properties.iteritems():
elem.set_property(property, value)
pipe.add(elem)
elems.append(elem)
Add('alsasrc')
Add('capsfilter', {'caps': caps})
Add('audioconvert')
Add('vorbisenc')
Add('shout2send', {'ip': host, 'port': port, 'password': password,
'mount': '/olpc.ogg'})
gst.element_link_many(*elems)
return pipe
def constructPipeline(self):
"""
Create the pipeline, add and link elements.
"""
self.pipeline = gst.Pipeline()
self.gnlfilesrc = \
gst.element_factory_make("gnlfilesource")
# Set properties of filesrc element
# Note: the gnlfilesource signal will be connected
# in self.connect_signals()
self.gnlfilesrc.set_property("uri", "file:///" + self.inFileLocation)
self.colorSpace = gst.element_factory_make("ffmpegcolorspace")
self.encoder = gst.element_factory_make("ffenc_png")
self.filesink = gst.element_factory_make("filesink")
self.pipeline.add(self.gnlfilesrc, self.colorSpace, self.encoder,
self.filesink)
gst.element_link_many(self.colorSpace, self.encoder, self.filesink)
def create_pipeline(self):
p = gst.Pipeline()
width, height = self.framesize.split("x")
width, height = int(width), int(height)
src = gst.element_factory_make("videotestsrc")
src.props.num_buffers = self.num_buffers
bitrate = self.bitrate
scaler = gst.element_factory_make("videoscale")
enc = gst.element_factory_make(self.element, "encoder")
if self.mode is not None:
enc.props.mode = self.mode
if self.intra_refresh is not None:
enc.props.intra_refresh = self.intra_refresh
enc.props.bitrate = bitrate
ident = gst.element_factory_make("identity")
sink = gst.element_factory_make("fakesink")
s = gst.Structure("video/x-raw-yuv")
s["format"] = gst.Fourcc(self.format)
s["width"] = width
s["height"] = height
s["framerate"] = gst.Fraction(self.framerate, 1)
caps = gst.element_factory_make("capsfilter", "capsf")
caps.props.caps = gst.Caps(s)
p.add(src, scaler, caps, enc, ident, sink)
gst.element_link_many(src, scaler, caps, enc, ident, sink)
ident.connect("handoff", self.handoff)
ident.set_property("signal-handoffs", True)
return p
def init_audio(self):
self.unlink_gst()
if (self.enable):
self.chain = []
self.pipeline = gst.Pipeline("mypipeline")
self.source = self.make_and_chain("appsrc")
rs = SignalGen.sample_rates[self.sample_rate]
self.rate = float(rs)
self.interval = 1.0 / self.rate
caps = gst.Caps('audio/x-raw-int,'
'endianness=(int)1234,'
'channels=(int)2,'
'width=(int)32,'
'depth=(int)32,'
'signed=(boolean)true,'
'rate=(int)%s' % rs)
self.source.set_property('caps', caps)
self.sink = self.make_and_chain("autoaudiosink")
self.pipeline.add(*self.chain)
gst.element_link_many(*self.chain)
self.source.connect('need-data', self.need_data)
self.pipeline.set_state(gst.STATE_PLAYING)
def constructPipeline(self):
"""
Create an instance of gst.Pipeline, create, add element objects
to this pipeline. Create appropriate connections between the elements.
"""
self.pipeline = gst.Pipeline("pipeline")
self.filesrc = gst.element_factory_make("filesrc")
self.filesrc.set_property("location", self.inFileLocation)
self.filesink = gst.element_factory_make("filesink")
self.filesink.set_property("location", self.outFileLocation)
self.decodebin = gst.element_factory_make("decodebin")
self.audioconvert = gst.element_factory_make("audioconvert")
audio_encoder = self.audioEncoders[self.outputFormat]
muxer_str = self.muxers[self.outputFormat]
video_encoder = self.videoEncoders[self.outputFormat]
self.audio_encoder = gst.element_factory_make(audio_encoder)
self.muxer = gst.element_factory_make(muxer_str)
self.video_encoder = gst.element_factory_make(video_encoder)
self.queue1 = gst.element_factory_make("queue")
self.queue2 = gst.element_factory_make("queue")
self.queue3 = gst.element_factory_make("queue")
self.pipeline.add(self.filesrc, self.decodebin, self.video_encoder,
self.muxer, self.queue1, self.queue2, self.queue3,
self.audioconvert, self.audio_encoder, self.filesink)
gst.element_link_many(self.filesrc, self.decodebin)
gst.element_link_many(self.queue1, self.video_encoder, self.muxer,
self.filesink)
gst.element_link_many(self.queue2, self.audioconvert,
self.audio_encoder, self.queue3, self.muxer)
def __init__(self, channel):
#defines a pipeline, and a player. Adds player to pipeline
self.pipeline = gst.Pipeline("player")
self.player = gst.element_factory_make("playbin", "player")
self.pipeline.add(self.player)
#pulse sink for audio and fakesink for video
pulse = gst.element_factory_make("alsasink", "alsa")
fakesink = gst.element_factory_make("fakesink", "fakesink")
#video properties are retained to "trick" the pi that there is a channel for video, not nescessary
self.player.set_property('uri', channel)
self.player.set_property("audio-sink", pulse)
self.player.set_property("video-sink", fakesink)
#sets the bus and signal watch to check for changes to the bus
self.bus = self.player.get_bus()
self.bus.add_signal_watch()
self.bus.enable_sync_message_emission()
#emits message
self.bus.connect("message", self.on_message)
def convertir(self, ruta, comienzo, pos):
gobject.threads_init()
global pipeline, adder, PAD_MUTEX, bus
pipeline = gst.Pipeline("mypipeline")
adder = gst.element_factory_make("adder")
PAD_MUTEX = threading.Lock()
bus = pipeline.get_bus()
bus.enable_sync_message_emission()
bus.connect("sync-message", self.handle_message)
many = []
comp = self.get_comp(ruta, comienzo)
many.append(comp)
convert = gst.element_factory_make("audioconvert")
resample = gst.element_factory_make("audioresample")
caps = gst.Caps("audio/x-raw-int, channels=1, width=16, rate=8000")
filt = gst.element_factory_make("capsfilter")
filt.set_property("caps", caps)
enc = gst.element_factory_make("wavenc")
#sink = gst.element_factory_make("alsasink")
sink = gst.element_factory_make("filesink")
outloc = "salida_" + str(
pos) + ".wav" #os.path.join(bundle.dir, "punch.wav")
#print pos
sink.set_property("location", outloc)
pipeline.add(*many)
pipeline.add(adder, resample, convert, filt, enc, sink)
gst.element_link_many(adder, resample, convert, filt, enc, sink)
pipeline.set_state(gst.STATE_PLAYING)
gtk.main()
def main():
type = 'async'
loop = gobject.MainLoop()
pipeline = gst.Pipeline("cutter")
src = gst.element_factory_make("sinesrc", "src")
cutter = gst.element_factory_make("cutter")
cutter.set_property('threshold', 0.5)
sink = gst.element_factory_make("fakesink", "sink")
pipeline.add(src, cutter, sink)
src.link(cutter)
cutter.link(sink)
control = gst.Controller(src, "volume")
control.set_interpolation_mode("volume", gst.INTERPOLATE_LINEAR)
control.set("volume", 0, 0.0)
control.set("volume", 2 * gst.SECOND, 1.0)
control.set("volume", 4 * gst.SECOND, 0.0)
control.set("volume", 6 * gst.SECOND, 1.0)
control.set("volume", 8 * gst.SECOND, 0.0)
control.set("volume", 10 * gst.SECOND, 1.0)
bus = pipeline.get_bus()
if type == 'async':
bus.add_signal_watch()
bus.connect('message::element', on_message_application, loop)
else:
# FIXME: needs wrapping in gst-python
bus.set_sync_handler(bus.sync_signal_handler)
bus.connect('sync-message::element', on_message_application, loop)
pipeline.set_state(gst.STATE_PLAYING)
loop.run()
pipeline.set_state(gst.STATE_NULL)
def create_pipeline(self):
p = gst.Pipeline()
width, height = self.framesize.split("x")
width, height = int(width), int(height)
if self.location:
src = gst.element_factory_make("filesrc")
src.props.location = self.location
if self.format == "I420":
bpp = 1.5
elif self.format == "UYVY":
bpp = 2
src.props.blocksize = int(width * height * bpp)
else:
src = gst.element_factory_make("videotestsrc")
src.props.num_buffers = self.num_buffers
enc = gst.element_factory_make(self.element)
enc.props.bitrate = self.bitrate
sink = gst.element_factory_make("filesink")
sink.props.location = self.tmp_filename
s = gst.Structure("video/x-raw-yuv")
s["format"] = gst.Fourcc(self.format)
s["width"] = width
s["height"] = height
s["framerate"] = gst.Fraction(self.framerate, 1)
capf = gst.element_factory_make("capsfilter")
capf.props.caps = gst.Caps(s)
p.add(src, capf, enc, sink)
if not gst.element_link_many(src, capf, enc, sink):
print " pipeline creation error !!"
return p
def __init__(self,
EndOfSongCallback=None,
PlayerReadyCallback=None,
ErrorCallback=None):
self.EndOfSongCallback = EndOfSongCallback
self.PlayerReadyCallback = PlayerReadyCallback
self.ErrorCallback = ErrorCallback
self.thread = GobjectThread()
self.pipeline = gst.Pipeline('pipeline')
#Concrete players must create these elements and add them in the pipeline
#and link them (see the commented code in AddPipelineElements for an example)
self.volume = None
self.equalizer = None
self.AddPipelineElements(self.pipeline)
self.bus = self.pipeline.get_bus()
self.bus.add_signal_watch()
self.bus.enable_sync_message_emission()
self.bus.connect('message', self._OnMessage)
