class NoDataBinUnlinker(gst.Element):

    #source pad (template): we send buffers forward through here
    _srctemplate = gst.PadTemplate ('src',
                                    gst.PAD_SRC,
                                    gst.PAD_ALWAYS,
                                    gst.caps_new_any())

    #sink pad (template): we recieve buffers from our sink pad
    _sinktemplate = gst.PadTemplate ('sink',
                                     gst.PAD_SINK,
                                     gst.PAD_ALWAYS,
                                     gst.caps_new_any())

    #register our pad templates
    __gsttemplates__ = (_srctemplate, _sinktemplate)

    def __init__(self, unlink, tolerance=1):
    #initialise parent class
        gst.Element.__init__(self)

        self.datawatcher = DataWatcher(unlink, tolerance)
        self.playing = False

        #source pad, outgoing data
        self.srcpad = gst.Pad(self._srctemplate)

        #sink pad, incoming data
        self.sinkpad = gst.Pad(self._sinktemplate)
        self.sinkpad.set_setcaps_function(self._sink_setcaps)
        self.sinkpad.set_chain_function(self._sink_chain)

        #make pads available
        self.add_pad(self.srcpad)
        self.add_pad(self.sinkpad)

    def _sink_setcaps(self, pad, caps):
        #we negotiate our capabilities here, this function is called
        #as autovideosink accepts anything, we just say yes we can handle the
        #incoming data
        return True

    def _sink_chain(self, pad, buf):
        #this is where we do filtering
        #and then push a buffer to the next element, returning a value saying
        # it was either successful or not.
        if not self.playing:
            self.playing = True
            self.datawatcher.start()

        secs = float(buf.duration) / gst.SECOND

        # print "NEW BUFFER "+str(secs)

        if (len(buf)>0):
            self.datawatcher.touch(secs)



        return self.srcpad.push(buf)
Exemple #2
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class NewElement(gst.Element):
    """ A basic, buffer forwarding gstreamer element """

    #here we register our plugin details
    __gstdetails__ = (
        "NewElement plugin",
        "newelement.py",
        "gst.Element, that passes a buffer from source to sink (a filter)",
        "Stephen Griffiths <*****@*****.**>")

    #source pad (template): we send buffers forward through here
    _srctemplate = gst.PadTemplate ('src',
        gst.PAD_SRC,
        gst.PAD_ALWAYS,
        gst.caps_new_any())

    #sink pad (template): we recieve buffers from our sink pad
    _sinktemplate = gst.PadTemplate ('sink',
        gst.PAD_SINK,
        gst.PAD_ALWAYS,
        gst.caps_new_any())

    #register our pad templates
    __gsttemplates__ = (_srctemplate, _sinktemplate)

    def __init__(self, *args, **kwargs):   
        print 'sinit'
        #initialise parent class
        gst.Element.__init__(self, *args, **kwargs)

        #source pad, outgoing data
        self.srcpad = gst.Pad(self._srctemplate)

        #sink pad, incoming data
        self.sinkpad = gst.Pad(self._sinktemplate)
        self.sinkpad.set_setcaps_function(self._sink_setcaps)
        self.sinkpad.set_chain_function(self._sink_chain)

        #make pads available
        self.add_pad(self.srcpad)
        self.add_pad(self.sinkpad)
        print 'einit'

    def _sink_setcaps(self, pad, caps):
        #we negotiate our capabilities here, this function is called
        #as autovideosink accepts anything, we just say yes we can handle the
        #incoming data
        print 'setcaps'
        return True

    def _sink_chain(self, pad, buf):
        #this is where we do filtering
        #and then push a buffer to the next element, returning a value saying
        # it was either successful or not.
        print 'schain'
        ret = self.srcpad.push(buf)
        print 'echain'
        return ret
Exemple #3
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class LapseElement(gst.Element):

    _srcpadtemplate = gst.PadTemplate("srcpadtemplate", gst.PAD_SRC,
                                      gst.PAD_ALWAYS, gst.caps_new_any())

    _sinkpadtemplate = gst.PadTemplate("sinkpadtemplate", gst.PAD_SINK,
                                       gst.PAD_ALWAYS, gst.caps_new_any())

    def info(self, m):
        print m

    def __init__(self):
        gst.Element.__init__(self)
        gst.info('creating pads')
        self.srcpad = gst.Pad(self._srcpadtemplate, "src")
        self.sinkpad = gst.Pad(self._sinkpadtemplate, "sink")
        gst.info('adding pads to self')
        self.add_pad(self.srcpad)
        self.add_pad(self.sinkpad)

        gst.info('setting chain/event functions')
        #self.srcpad.set_chain_function(self.src_chainfunc)
        #self.srcpad.set_event_function(self.src_eventfunc)

        self.sinkpad.set_chain_function(self.sink_chainfunc)
        self.sinkpad.set_event_function(self.sink_eventfunc)

        self.time_cb = None
        self.interval = 60
        self._calc_next()

    def _calc_next(self):
        """Given the configured interval, calculate when the next
           frame should be added to the output"""
        d = self.interval
        self.next = d + int(time.time() / d) * d

    def set_property(self, name, value):
        if name == "interval":
            self.interval = value
            self._calc_next()
        elif name == "time_cb":
            self.time_cb = value

    def sink_chainfunc(self, pad, buffer):
        #self.info("%s timestamp(buffer):%d" % (pad, buffer.timestamp))

        self.time_cb and self.time_cb(time.ctime(self.next))
        if time.time() > self.next:
            self._calc_next()
            self.srcpad.push(buffer)
            self.info("pushed buffer at " + time.ctime())
        return gst.FLOW_OK

    def sink_eventfunc(self, pad, event):
        self.info("%s event:%r" % (pad, event.type))
        self.srcpad.push_event(event)
        return True
Exemple #4
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class ResizeSink(gst.Element):
    # Above didn't have this but seems its not optional
    __gstdetails__ = ('ResizeSink','Sink', \
                      'Resize source to get around X11 memory limitations', 'John McMaster')

    _sinkpadtemplate = gst.PadTemplate ("sinkpadtemplate",
                                        gst.PAD_SINK,
                                        gst.PAD_ALWAYS,
                                        gst.caps_new_any())


    _srcpadtemplate =  gst.PadTemplate ("srcpadtemplate",
                                        gst.PAD_SRC,
                                        gst.PAD_ALWAYS,
                                        gst.caps_new_any())

    def __init__(self):
        gst.Element.__init__(self)
        self.sinkpad = gst.Pad(self._sinkpadtemplate, "sink")
        self.srcpad = gst.Pad(self._srcpadtemplate, "src")
        self.add_pad(self.sinkpad)
        self.add_pad(self.srcpad)

        self.sinkpad.set_chain_function(self.chainfunc)
        self.sinkpad.set_event_function(self.eventfunc)
    
    def chainfunc(self, pad, buffer):
        try:
            print 'Got resize buffer'
            # Simplest: just propagate the data
            # self.srcpad.push(buffer)
            
            # Import into PIL and downsize it
            # Raw jpeg to pr0n PIL wrapper object
            print 'resize chain', len(buffer.data), len(buffer.data) / 3264.0
            #open('temp.jpg', 'w').write(buffer.data)
            #io = StringIO.StringIO(buffer.data)
            io = StringIO.StringIO(str(buffer))
            try:
                image = Image.open(io)
            except:
                print 'failed to create image'
                return gst.FLOW_OK
            # Use a fast filter since this is realtime
            image = get_scaled(image, 0.5, Image.NEAREST)

            output = StringIO.StringIO()
            image.save(output, 'jpeg')
            self.srcpad.push(gst.Buffer(output.getvalue()))
        except:
            traceback.print_exc()
            os._exit(1)
        
        return gst.FLOW_OK

    def eventfunc(self, pad, event):
        return True
Exemple #5
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class FakeTransformer(gst.Element, log.Loggable):
    logCategory = 'faker_datasink'

    _sinkpadtemplate = gst.PadTemplate("sinkpadtemplate", gst.PAD_SINK,
                                       gst.PAD_ALWAYS, gst.caps_new_any())

    _srcpadtemplate = gst.PadTemplate("srcpadtemplate", gst.PAD_SRC,
                                      gst.PAD_ALWAYS, gst.caps_new_any())

    def __init__(self, destination=None, request=None):
        gst.Element.__init__(self)
        log.Loggable.__init__(self)
        self.sinkpad = gst.Pad(self._sinkpadtemplate, "sink")
        self.srcpad = gst.Pad(self._srcpadtemplate, "src")
        self.add_pad(self.sinkpad)
        self.add_pad(self.srcpad)

        self.sinkpad.set_chain_function(self.chainfunc)

        self.buffer = ''
        self.buffer_size = 0
        self.proxy = False
        self.got_new_segment = False
        self.closed = False

    def get_fake_header(self):
        return struct.pack(">L4s", 32, 'ftyp') + \
            "mp42\x00\x00\x00\x00mp42mp41isomiso2"

    def chainfunc(self, pad, buffer):
        if self.proxy:
            # we are in proxy mode already
            self.srcpad.push(buffer)
            return gst.FLOW_OK

        self.buffer = self.buffer + buffer.data
        if not self.buffer_size:
            try:
                self.buffer_size, a_type = struct.unpack(
                    ">L4s", self.buffer[:8])
            except:
                return gst.FLOW_OK

        if len(self.buffer) < self.buffer_size:
            # we need to buffer more
            return gst.FLOW_OK

        buffer = self.buffer[self.buffer_size:]
        fake_header = self.get_fake_header()
        n_buf = gst.Buffer(fake_header + buffer)
        self.proxy = True
        self.srcpad.push(n_buf)

        return gst.FLOW_OK
	def _getcaps(self, pad):
		otherpad = self._get_otherpad(pad)
		
		res = otherpad.peer_get_caps()
		if res == None:
			res = gst.caps_new_any()
		return res
Exemple #7
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    def __init__(self, caps=None, uri=None, *args, **kwargs):
        gst.Bin.__init__(self, *args, **kwargs)
        if not caps:
            caps = gst.caps_new_any()
        self.caps = caps
        self.typefind = gst.element_factory_make("typefind", "internal-typefind")
        self.add(self.typefind)

        self.uri = uri
        if self.uri and gst.uri_is_valid(self.uri):
            self.urisrc = gst.element_make_from_uri(gst.URI_SRC, uri, "urisrc")
            self.log("created urisrc %s / %r" % (self.urisrc.get_name(),
                                                 self.urisrc))
            self.add(self.urisrc)
            self.urisrc.link(self.typefind)
        else:
            self._sinkpad = gst.GhostPad("sink", self.typefind.get_pad("sink"))
            self._sinkpad.set_active(True)
            self.add_pad(self._sinkpad)

        self.typefind.connect("have_type", self._typefindHaveTypeCb)

        self._srcpad = None

        self._dynamics = []

        self._validelements = [] #added elements

        self._factories = self._getSortedFactoryList()
Exemple #8
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    def __init__(self, caps=None, uri=None, stream=None, *args, **kwargs):
        gst.Bin.__init__(self, *args, **kwargs)

        if not caps:
            caps = gst.caps_new_any()
        self.caps = caps
        self.stream = stream
        self.typefind = gst.element_factory_make("typefind",
            "internal-typefind")
        self.add(self.typefind)

        self.uri = uri
        if self.uri and gst.uri_is_valid(self.uri):
            self.urisrc = gst.element_make_from_uri(gst.URI_SRC, uri, "urisrc")
            self.log("created urisrc %s / %r" % (self.urisrc.get_name(),
                                                 self.urisrc))
            self.add(self.urisrc)
            self.urisrc.link(self.typefind)
        else:
            self._sinkpad = gst.GhostPad("sink", self.typefind.get_pad("sink"))
            self._sinkpad.set_active(True)
            self.add_pad(self._sinkpad)

        self.typefind.connect("have_type", self._typefindHaveTypeCb)

        self._srcpad = None

        self._dynamics = []

        self._validelements = [] #added elements

        self._factories = self._getSortedFactoryList()
Exemple #9
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class CaptureSink(gst.Element):
    __gstdetails__ = ('CaptureSink','Sink', \
                      'Captures images for the CNC', 'John McMaster')

    _sinkpadtemplate = gst.PadTemplate("sinkpadtemplate", gst.PAD_SINK,
                                       gst.PAD_ALWAYS, gst.caps_new_any())

    def __init__(self):
        gst.Element.__init__(self)
        self.sinkpad = gst.Pad(self._sinkpadtemplate, "sink")
        self.add_pad(self.sinkpad)

        self.sinkpad.set_chain_function(self.chainfunc)
        self.sinkpad.set_event_function(self.eventfunc)

        self.img_cb = lambda buffer: None

    '''
    gstreamer plugin core methods
    '''

    def chainfunc(self, pad, buffer):
        #print 'Capture sink buffer in'
        try:
            self.img_cb(buffer)
        except:
            traceback.print_exc()
            os._exit(1)

        return gst.FLOW_OK

    def eventfunc(self, pad, event):
        return True
Exemple #10
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class VideoSrc(ElementBase.CCNElementSrc):
	__gtype_name__ = 'VideoSrc'
	__gstdetails__ = ("CCN Video Source", "Source/Network",
		"Receives video data over a CCNx network", "Derek Kulinski <*****@*****.**>")

	__gsttemplates__ = (
		gst.PadTemplate("src",
			gst.PAD_SRC,
			gst.PAD_ALWAYS,
			gst.caps_new_any()),
		)

	__gproperties__ = {
		'location' : (gobject.TYPE_STRING,
			'CCNx location',
			'location of the stream in CCNx network',
			'',
			gobject.PARAM_READWRITE)
	}

	def do_set_property(self, property, value):
		if property.name == 'location':
			self.depacketizer = CCNVideoDepacketizer(value, 18)
		else:
			raise AttributeError, 'unknown property %s' % property.name

	def do_set_state(self, state):
		print "CHANGING STATE %s" % state
class MemSrc(gst.BaseSrc):
    """A GStreamer Source reading from memory
    """

    __gsttemplates__ = (
            gst.PadTemplate("src",
                gst.PAD_SRC,
                gst.PAD_ALWAYS,
                gst.caps_new_any()),
            )

    def __init__(self, name):
        self.__gobject_init__()
        self._data = None
        self.set_name(name)

    def set_property(self, name, value):
        if name == 'data':
            self._data = value
            self._data_len = len(value)

    def do_create(self, offset, size):
        size = 4096 * 2**4
        if self._data and offset < self._data_len:
            blob = self._data[offset:offset+size]
            return gst.FLOW_OK, gst.Buffer(blob)
        else:
            return gst.FLOW_UNEXPECTED, None
    def _getcaps(self, pad):
        otherpad = self._get_otherpad(pad)

        res = otherpad.peer_get_caps()
        if res == None:
            res = gst.caps_new_any()
        return res
Exemple #13
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class FileSource(gst.BaseSrc):
    __gsttemplates__ = (
        gst.PadTemplate("src",
                        gst.PAD_SRC,
                        gst.PAD_ALWAYS,
                        gst.caps_new_any()),
        )

    blocksize = 4096
    fd = None
    
    def __init__(self, name):
        self.__gobject_init__()
        self.curoffset = 0
        self.set_name(name)
            
    def set_property(self, name, value):
        if name == 'location':
            self.fd = open(value, 'r')

    def do_create(self, offset, size):
        if offset != self.curoffset:
            self.fd.seek(offset, 0)
        data = self.fd.read(self.blocksize)
        if data:
            self.curoffset += len(data)
            return gst.FLOW_OK, gst.Buffer(data)
        else:
            return gst.FLOW_UNEXPECTED, None
Exemple #14
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class BridgeSink(gst.Element):

    _sinkpadtemplate = gst.PadTemplate ("sinkpadtemplate",
                                        gst.PAD_SINK,
                                        gst.PAD_ALWAYS,
                                        gst.caps_new_any())

    def __init__(self, queue):
        gst.Element.__init__(self)

        self.queue = queue

        gst.info('creating sinkpad')
        self.sinkpad = gst.Pad(self._sinkpadtemplate, "sink")
        gst.info('adding sinkpad to self')
        self.add_pad(self.sinkpad)

        gst.info('setting chain/event functions')
        self.sinkpad.set_chain_function(self.chainfunc)
        self.sinkpad.set_event_function(self.eventfunc)

    def chainfunc(self, pad, buffer):
        self.info("%s timestamp(buffer):%d" % (pad, buffer.timestamp))
        self.queue.put(buffer)
        return gst.FLOW_OK

    def eventfunc(self, pad, event):
        self.info("%s event:%r" % (pad, event.type))
        return True
Exemple #15
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 def __init__(self):
     super(UriListElement, self).__init__()
     self.uridecodebin = gst.element_factory_make('uridecodebin')
     self.uridecodebin.connect('pad-added', self.pad_added)
     # Limit to anycaps so we get a single stream out, letting other
     # elements downstream figure out actual muxing
     self.uridecodebin.set_property('caps', gst.caps_new_any())
Exemple #16
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class MidiNoteSource(gst.BaseSrc):
    __gsttemplates__ = (
        gst.PadTemplate("src",
                        gst.PAD_SRC,
                        gst.PAD_ALWAYS,
                        gst.caps_new_any()),
        )

    blocksize = 4096
    fd = None

    def __init__(self, name=None, note=None):
        self.__gobject_init__()
        self.curoffset = 0
        if name is not None: self.set_name(name)
        if note is not None: self.set_note(note)

    def set_note(self, note):
        self.fd = StringIO.StringIO(binascii.unhexlify("4d546864000000060000000101e04d54726b0000002600ff510307a12000ff5902000000ff58040402300800c0180090%x69816f80%x00820aff2f00" % (note+69, note+69)))

    def set_property(self, name, value):
        if name == 'note':
            self.set_note(value)

    def do_create(self, offset, size):
        if offset != self.curoffset:
            self.fd.seek(offset, 0)
        data = self.fd.read(self.blocksize)
        if data:
            self.curoffset += len(data)
            return gst.FLOW_OK, gst.Buffer(data)
        else:
            return gst.FLOW_UNEXPECTED, None
Exemple #17
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 def __init__(self):
     super(UriListElement, self).__init__()
     self.uridecodebin = gst.element_factory_make('uridecodebin')
     self.uridecodebin.connect('pad-added', self.pad_added)
     # Limit to anycaps so we get a single stream out, letting other
     # elements downstream figure out actual muxing
     self.uridecodebin.set_property('caps', gst.caps_new_any())
Exemple #18
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class AudioSrc(gst.BaseSrc):
    __gtype_name__ = 'AudioSrc'
    __gstdetails__ = ("Audio Source", "Source/Network",
                      "Receive data over a CCNx network",
                      "Derek Kulinski <*****@*****.**>")

    __gsttemplates__ = (gst.PadTemplate("src", gst.PAD_SRC, gst.PAD_ALWAYS,
                                        gst.caps_new_any()), )

    caps = None
    of = None

    def do_get_caps(self):
        print "Get caps"
        if not self.caps:
            if self.of:
                caps_str = self.of.readline()
                self.caps = gst.caps_from_string(caps_str.rstrip('\n'))
            else:
                return None
        return self.caps

    def do_set_caps(self, caps):
        print "Caps: %s" % caps
        return True

    def do_start(self):
        print "Starting!"
        self.of = open("audio.bin", "rb")
        return True

    def do_stop(self):
        print "Stopping!"
        self.of.close()
        return True

    def do_is_seekable(self):
        print "Is seekable?"
        return False

    def do_event(self, ev):
        print "Got event of type %s" % ev.type
        return gst.FLOW_OK

    def do_create(self, offset, size):
        hdr = self.of.read(hdr_len)
        size, timestamp, duration, flags = struct.unpack(hdr_fmt, hdr)

        buffer = gst.Buffer(self.of.read(size))
        buffer.timestamp = timestamp
        buffer.duration = duration
        #buffer.flags = flags

        print "buffer timestamp %d %d %d" % (buffer.timestamp, buffer.duration,
                                             buffer.flags)
        return gst.FLOW_OK, buffer

    def do_check_get_range(self):
        return False
Exemple #19
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class SnapshotSource(gst.Element):
    __gstdetails__ = ("SnapshotSource plugin", "convert.py",
                      "A source of screenshot video frames",
                      "Rodney Lorrimar <*****@*****.**>")

    _src_template = gst.PadTemplate("src", gst.PAD_SRC, gst.PAD_ALWAYS,
                                    gst.caps_new_any())

    __gsttemplates__ = (_src_template, )

    def __init__(self, framerate=None):
        gst.Element.__init__(self)
        self.framerate = framerate
        self.src_pad = gst.Pad(self._src_template)
        self.src_pad.use_fixed_caps()
        self.add_pad(self.src_pad)

    def add_snapshot(self, pixbuf, time_ms):
        self.width = pixbuf.get_width()
        self.height = pixbuf.get_height()
        #print "Pushing %dx%d snapshot to source" % (self.width, self.height)
        buf = gst.Buffer(pixbuf.get_pixels())
        buf.timestamp = int(round(time_ms * gst.MSECOND))
        # Don't forget to set the right caps on the buffer
        self.set_caps_on(buf)
        src = self.get_static_pad("src")
        status = src.push(buf)
        if status != gst.FLOW_OK:
            raise RuntimeError, "Error while pushing buffer : " + str(status)

    def set_caps_on(self, dest):
        """Set the current frame caps on the specified object"""
        framerate = ("framerate=%s," %
                     self.framerate) if self.framerate else ""

        # The data is always native-endian xRGB; ffmpegcolorspace
        # doesn't support little-endian xRGB, but does support
        # big-endian BGRx.
        caps = gst.caps_from_string("video/x-raw-rgb,bpp=24,depth=24,\
                                     red_mask=0xff0000,\
                                     green_mask=0x00ff00,\
                                     blue_mask=0x0000ff,\
                                     endianness=4321,\
                                     %swidth=%d,height=%d" \
                                        % (framerate, self.width, self.height))
        if dest:
            dest.set_caps(caps)

    def _src_setcaps(self, pad, caps):
        #we negotiate our capabilities here, this function is called
        #as autovideosink accepts anything, we just say yes we can handle the
        #incoming data
        return True

    def _src_chain(self, pad, buf):
        #this is where we do filtering
        #and then push a buffer to the next element, returning a value saying
        # it was either successful or not.
        return self.srcpad.push(buf)
Exemple #20
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class CapsRemover(gst.Element):

    #source pad (template): we send buffers forward through here
    _srctemplate = gst.PadTemplate ('src',
                                    gst.PAD_SRC,
                                    gst.PAD_ALWAYS,
                                    gst.caps_new_any())

    #sink pad (template): we recieve buffers from our sink pad
    _sinktemplate = gst.PadTemplate ('sink',
                                     gst.PAD_SINK,
                                     gst.PAD_ALWAYS,
                                     gst.caps_new_any())

    #register our pad templates
    __gsttemplates__ = (_srctemplate, _sinktemplate)

    def __init__(self, *args, **kwargs):
    #initialise parent class
        gst.Element.__init__(self, *args, **kwargs)

        #source pad, outgoing data
        self.srcpad = gst.Pad(self._srctemplate)

        #sink pad, incoming data
        self.sinkpad = gst.Pad(self._sinktemplate)
        self.sinkpad.set_setcaps_function(self._sink_setcaps)
        self.sinkpad.set_chain_function(self._sink_chain)

        #make pads available
        self.add_pad(self.srcpad)
        self.add_pad(self.sinkpad)

    def _sink_setcaps(self, pad, caps):
        #we negotiate our capabilities here, this function is called
        #as autovideosink accepts anything, we just say yes we can handle the
        #incoming data
        return True

    def _sink_chain(self, pad, buf):
        #this is where we do filtering
        #and then push a buffer to the next element, returning a value saying
        # it was either successful or not.
        # buf.set_caps(gst.caps_new_any())
        return self.srcpad.push(gst.Buffer(str(buf)))
Exemple #21
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class DataSink(gst.Element, log.Loggable):

    logCategory = 'transcoder_datasink'

    _sinkpadtemplate = gst.PadTemplate("sinkpadtemplate", gst.PAD_SINK,
                                       gst.PAD_ALWAYS, gst.caps_new_any())

    def __init__(self, destination=None, request=None):
        gst.Element.__init__(self)
        log.Loggable.__init__(self)
        self.sinkpad = gst.Pad(self._sinkpadtemplate, "sink")
        self.add_pad(self.sinkpad)

        self.sinkpad.set_chain_function(self.chainfunc)
        self.sinkpad.set_event_function(self.eventfunc)
        self.destination = destination
        self.request = request

        if self.destination is not None:
            self.destination = open(self.destination, 'wb')
        self.buffer = ''
        self.data_size = 0
        self.got_new_segment = False
        self.closed = False

    def chainfunc(self, pad, buffer):
        if self.closed:
            return gst.FLOW_OK
        if self.destination is not None:
            self.destination.write(buffer.data)
        elif self.request is not None:
            self.buffer += buffer.data
            if len(self.buffer) > 200000:
                self.request.write(self.buffer)
                self.buffer = ''
        else:
            self.buffer += buffer.data

        self.data_size += buffer.size
        return gst.FLOW_OK

    def eventfunc(self, pad, event):
        if event.type == gst.EVENT_NEWSEGMENT:
            if not self.got_new_segment:
                self.got_new_segment = True
            else:
                self.closed = True
        elif event.type == gst.EVENT_EOS:
            if self.destination is not None:
                self.destination.close()
            elif self.request is not None:
                if len(self.buffer) > 0:
                    self.request.write(self.buffer)
                self.request.finish()
        return True
Exemple #22
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class UriListElement(BasePlaylistElement):
    __gstdetails__ = ('URIListDemuxer',
                      'Demuxer',
                      'Convert a text/uri-list to a stream',
                      'Mopidy')

    sinkpad_template = gst.PadTemplate(
        'sink', gst.PAD_SINK, gst.PAD_ALWAYS,
        gst.caps_from_string('text/uri-list'))

    srcpad_template = gst.PadTemplate(
        'src', gst.PAD_SRC, gst.PAD_ALWAYS,
        gst.caps_new_any())

    ghost_srcpad = True  # We need to hook this up to our internal decodebin

    __gsttemplates__ = (sinkpad_template, srcpad_template)

    def __init__(self):
        super(UriListElement, self).__init__()
        self.uridecodebin = gst.element_factory_make('uridecodebin')
        self.uridecodebin.connect('pad-added', self.pad_added)
        # Limit to anycaps so we get a single stream out, letting other
        # elements downstream figure out actual muxing
        self.uridecodebin.set_property('caps', gst.caps_new_any())

    def pad_added(self, src, pad):
        self.srcpad.set_target(pad)
        pad.add_event_probe(self.pad_event)

    def pad_event(self, pad, event):
        if event.has_name('urilist-played'):
            error = gst.GError(gst.RESOURCE_ERROR, gst.RESOURCE_ERROR_FAILED,
                               b'Nested playlists not supported.')
            message = b'Playlists pointing to other playlists is not supported'
            self.post_message(gst.message_new_error(self, error, message))
        return 1  # GST_PAD_PROBE_OK

    def handle(self, uris):
        struct = gst.Structure('urilist-played')
        event = gst.event_new_custom(gst.EVENT_CUSTOM_UPSTREAM, struct)
        self.sinkpad.push_event(event)

        # TODO: hookup about to finish and errors to rest of URIs so we
        # round robin, only giving up once all have been tried.
        # TODO: uris could be empty.
        self.add(self.uridecodebin)
        self.uridecodebin.set_state(gst.STATE_READY)
        self.uridecodebin.set_property('uri', uris[0])
        self.uridecodebin.sync_state_with_parent()
        return True  # Make sure we consume the EOS that triggered us.

    def convert(self, data):
        return parse_urilist(data)
Exemple #23
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class PyIdentity(gst.Element):
    _sinkpadtemplate = gst.PadTemplate("sink", gst.PAD_SINK, gst.PAD_ALWAYS,
                                       gst.caps_new_any())
    _srcpadtemplate = gst.PadTemplate("src", gst.PAD_SRC, gst.PAD_ALWAYS,
                                      gst.caps_new_any())

    def __init__(self):
        gst.Element.__init__(self)

        self.sinkpad = gst.Pad(self._sinkpadtemplate, "sink")
        self.sinkpad.set_chain_function(self.chainfunc)
        self.sinkpad.set_event_function(self.eventfunc)
        self.sinkpad.set_getcaps_function(gst.Pad.proxy_getcaps)
        self.sinkpad.set_setcaps_function(gst.Pad.proxy_setcaps)
        self.add_pad(self.sinkpad)

        self.srcpad = gst.Pad(self._srcpadtemplate, "src")

        self.srcpad.set_event_function(self.srceventfunc)
        self.srcpad.set_query_function(self.srcqueryfunc)
        self.srcpad.set_getcaps_function(gst.Pad.proxy_getcaps)
        self.srcpad.set_setcaps_function(gst.Pad.proxy_setcaps)
        self.add_pad(self.srcpad)

    def chainfunc(self, pad, buffer):
        gst.log("Passing buffer with ts %d" % (buffer.timestamp))
        return self.srcpad.push(buffer)

    def eventfunc(self, pad, event):
        return self.srcpad.push_event(event)

    def srcqueryfunc(self, pad, query):
        return self.sinkpad.query(query)

    def srceventfunc(self, pad, event):
        return self.sinkpad.push_event(event)
Exemple #24
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class IcySrc(gst.Bin, gst.URIHandler):
    __gstdetails__ = ('IcySrc',
                      'Src',
                      'HTTP src wrapper for icy:// support.',
                      'Mopidy')

    srcpad_template = gst.PadTemplate(
        'src', gst.PAD_SRC, gst.PAD_ALWAYS,
        gst.caps_new_any())

    __gsttemplates__ = (srcpad_template,)

    def __init__(self):
        super(IcySrc, self).__init__()
        self._httpsrc = gst.element_make_from_uri(gst.URI_SRC, 'http://')
        try:
            self._httpsrc.set_property('iradio-mode', True)
        except TypeError:
            pass
        self.add(self._httpsrc)

        self._srcpad = gst.GhostPad('src', self._httpsrc.get_pad('src'))
        self.add_pad(self._srcpad)

    @classmethod
    def do_get_type_full(cls):
        return gst.URI_SRC

    @classmethod
    def do_get_protocols_full(cls):
        return [b'icy', b'icyx']

    def do_set_uri(self, uri):
        if uri.startswith('icy://'):
            return self._httpsrc.set_uri(b'http://' + uri[len('icy://'):])
        elif uri.startswith('icyx://'):
            return self._httpsrc.set_uri(b'https://' + uri[len('icyx://'):])
        else:
            return False

    def do_get_uri(self):
        uri = self._httpsrc.get_uri()
        if uri.startswith('http://'):
            return b'icy://' + uri[len('http://'):]
        else:
            return b'icyx://' + uri[len('https://'):]
Exemple #25
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class GridFSSource(Base, gst.BaseSrc):

    __metaclass__ = classmaker()

    __gsttemplates__ = (
        gst.PadTemplate(
            "src", gst.PAD_SRC, gst.PAD_ALWAYS,
            gst.caps_new_any()
            # gst.caps_from_string("application/ogg")
            # gst.caps_from_string("audio/x-raw-int, channels=2, endianness=1234, rate=44100, width=16, depth=16, signed=true")
        ), )

    blocksize = 4096
    fd = None

    def __init__(self, file_id):
        super(GridFSSource, self).__init__()
        self.__gobject_init__()
        self.curoffset = 0

        self.file_id = file_id

        # doc = self.db.conn.files.File()
        fs = gridfs.GridFS(self.db)
        self.fd = fs.get(ObjectId(file_id))

    # @asynchronous
    def do_create(self, offset, size):

        if offset != self.curoffset:
            self.fd.seek(offset, 0)

        # data = yield task(self.query, self.fd.read, self.blocksize)
        data = self.fd.read(self.blocksize)

        if data:
            self.curoffset += len(data)
            # respond(gst.FLOW_OK, gst.Buffer(data))
            return gst.FLOW_OK, gst.Buffer(data)
        else:
            # respond(gst.FLOW_UNEXPECTED, None)
            return gst.FLOW_UNEXPECTED, None

    def __del__(self):
        self.fd.close()
class KaicongAudioSource(gst.BaseSrc):
    __gstdetails__ = (
        "Kaicong Audio src plugin", "KaicongAudioGst.py",
        "Source element that rips sound from a Kaicong IP camera",
        "Scott Martin (github: smartin015)")

    _src_template = gst.PadTemplate("src", gst.PAD_SRC, gst.PAD_ALWAYS,
                                    gst.caps_new_any())

    __gsignals__ = {
        'packet_received': (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, ())
    }

    __gsttemplates__ = (_src_template, )

    def __init__(self, *args, **kwargs):
        self.caps = gst.caps_from_string(
            'audio/x-raw-int, rate=7600, endianness=1234, channels=1, width=16, depth=16, signed=true'
        )
        gst.BaseSrc.__init__(self)
        gst.info("Creating Kaicong src pad")
        self.src_pad = gst.Pad(self._src_template)
        self.src_pad.use_fixed_caps()

    def set_property(self, name, value):
        if name == 'ip':
            self.ip = value
        elif name == 'user':
            self.user = value
        elif name == "pwd":
            self.pwd = value
        elif name == "on" and value:
            self.audio = KaicongAudio(self.ip, user=self.user, pwd=self.pwd)
            self.audio.connect()
            gst.info("Connected audio")

    def do_create(self, offset, size):
        self.emit("packet_received")
        assert self.audio
        data = self.audio.read()
        buf = gst.Buffer(data)
        buf.set_caps(self.caps)
        print "do_create", len(buf)
        return gst.FLOW_OK, buf
Exemple #27
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class OverlayImageSource(gst.BaseSrc):
    __gstdetails__ = ('FluOverlaySrc', 'Source',
                      'Overlay Image source for flumotion', 'Zaheer Merali')
    __gsttemplates__ = (gst.PadTemplate("src", gst.PAD_SRC, gst.PAD_ALWAYS,
                                        gst.caps_new_any()))
    imgBuf = ""
    capsStr = ""
    duration = 1.0 / 25

    def __init__(self):
        gst.BaseSrc.__init__(self)
        self.set_format(gst.FORMAT_TIME)

    def do_create(self, offset, length):
        self.debug("Pushing buffer")
        gstBuf = gst.Buffer(self.imgBuf)
        padcaps = gst.caps_from_string(self.capsStr)
        gstBuf.set_caps(padcaps)
        gstBuf.timestamp = 0
        gstBuf.duration = self.duration * gst.SECOND
        return gst.FLOW_OK, gstBuf
Exemple #28
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class QuietSource(gst.BaseSrc):
    __gsttemplates__ = (
        gst.PadTemplate("src",
                        gst.PAD_SRC,
                        gst.PAD_ALWAYS,
                        gst.caps_new_any()),
    )

    def __init__(self, caps):
        self.__gobject_init__()
        self.caps = caps

        values = [0 for a in numpy.arange(0.0, 12*math.pi, 0.06)]
        data = struct.pack('<' + 'h'*len(values), *values)
        self.buf = gst.Buffer(data)
        caps = gst.caps_from_string('audio/x-raw-int, rate=8000, endianness=1234, channels=1, width=16, depth=16, signed=true')

        self.buf.set_caps(caps)

    def do_create(self, offset, size):
        return gst.FLOW_OK, self.buf
Exemple #29
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class VideoSink(gst.BaseSink):
    __gtype_name__ = 'VideoSink'
    __gstdetails__ = ("Video Sink", "Sink/Network",
                      "Receive data over a CCNx network",
                      "Derek Kulinski <*****@*****.**>")

    __gsttemplates__ = (gst.PadTemplate("sink", gst.PAD_SINK, gst.PAD_ALWAYS,
                                        gst.caps_new_any()), )

    def do_start(self):
        print "Starting!"
        self.of = open("video.bin", "wb")
        return True

    def do_stop(self):
        print "Stopping!"
        self.of.close()
        return True

    def do_set_caps(self, caps):
        print "Caps: %s" % caps
        self.of.write("%s\n" % caps)
        return True

    def do_render(self, buffer):
        print "Buffer timestamp %d %d %d" % (buffer.timestamp, buffer.duration,
                                             buffer.flags)
        hdr = struct.pack(hdr_fmt, len(buffer), buffer.timestamp,
                          buffer.duration, buffer.flags)
        self.of.write(hdr)
        self.of.write(buffer.data)
        return gst.FLOW_OK

    def do_preroll(self, buf):
        print "Preroll"
        return gst.FLOW_OK

    def do_event(self, ev):
        print "Got event of type %s" % ev.type
        return gst.FLOW_OK
class ReStamp(gst.Element):
    """ Helper element to resets timestamps for buffers except for keyframes """

    _src_padtemplate = gst.PadTemplate('src',
                                       gst.PAD_SRC,
                                       gst.PAD_ALWAYS,
                                       gst.caps_new_any())

    def __init__(self, sink_templ):
        gst.Element.__init__(self)
        self.bytestream = True
        # Sinkpad should have the same template and caps as the wrapped decoder
        self.sinkpad = gst.Pad(sink_templ, 'sink')
        self.add_pad(self.sinkpad)
        self.sinkpad.set_chain_function(self._chain)
        self.sinkpad.set_setcaps_function(self._setcaps)
        self.sinkpad.set_getcaps_function(self._getcaps)
        # Srcpad is only internal -> any caps
        self.srcpad = gst.Pad(self._src_padtemplate, 'src')
        self.add_pad(self.srcpad)

    def _setcaps(self, pad, caps):
        # We don't need to delete timestamps in avc streams. At least with mkv they are correct
        if not "byte-stream" in caps.to_string():
            self.bytestream = False
        # We simulate a decoder, so just pass on all caps negotiation
        return self.srcpad.get_peer().set_caps(caps)

    def _getcaps(self, pad):
        # We simulate a decoder, so just pass on all caps negotiation
        return self.srcpad.peer_get_caps()

    def _chain(self, pad, buf):
        # If we have byte-stream and no keyframe, delete the timestamp
        # print "Got buffer with timestamp %u, duration %u, offset %u, offset_end %u, Keyframe %r and caps: %s" % (buf.timestamp, buf.duration, buf.offset, buf.offset_end, not buf.flag_is_set(gst.BUFFER_FLAG_DELTA_UNIT), buf.caps)
        if self.bytestream and buf.flag_is_set(gst.BUFFER_FLAG_DELTA_UNIT):
            buf.timestamp = gst.CLOCK_TIME_NONE
        # print "Buffer timestamp set to gst.CLOCK_TIME_NONE"
        return self.srcpad.push(buf)
Exemple #31
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    def __init__(self, caps=None, uri=None, stream=None, *args, **kwargs):
        gst.Bin.__init__(self, *args, **kwargs)
        if not caps:
            caps = gst.caps_new_any()
        self.caps = caps
        self.stream = stream
        self.typefind = gst.element_factory_make("typefind",
                                                 "internal-typefind")
        self.add(self.typefind)

        self.uri = uri
        if self.uri and gst.uri_is_valid(self.uri):
            self.urisrc = gst.element_make_from_uri(gst.URI_SRC, uri, "urisrc")
            self.log("created urisrc %s / %r" %
                     (self.urisrc.get_name(), self.urisrc))
            self.add(self.urisrc)
            # Set the blocksize to 512kbytes, this will only matter for push-based sources
            if hasattr(self.urisrc.props, "blocksize"):
                self.urisrc.props.blocksize = 524288
            self.urisrc.link_pads_full("src", self.typefind, "sink",
                                       gst.PAD_LINK_CHECK_NOTHING)
        else:
            self._sinkpad = gst.GhostPad("sink", self.typefind.get_pad("sink"))
            self._sinkpad.set_active(True)
            self.add_pad(self._sinkpad)

        self.typefind.connect("have_type", self._typefindHaveTypeCb)

        self._srcpad = None

        self._dynamics = []

        self._validelements = []  # added elements

        self.debug("stream:%r" % self.stream)

        self.pending_newsegment = None
        self.eventProbeId = None
Exemple #32
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class VideoSink(gst.BaseSink):
	__gtype_name__ = 'VideoSink'
	__gstdetails__ = ("Video Sink", "Sink/Network",
	"Catch video stream as jpeg frames", "Dennis Liu <*****@*****.**>")

	__gsttemplates__ = (
		gst.PadTemplate("sink",
			gst.PAD_SINK,
			gst.PAD_ALWAYS,
			gst.caps_new_any()),
		)
	_index = 0
	_Signal_Buffer = SignalObject()

	def getSignal(self):
		return self._Signal_Buffer.signal

	def do_start(self):
		self.of = open("video.bin", "wb")
		return True

	def do_stop(self):
		self.of.close()
		return True

	def do_set_caps(self, caps):
		self.of.write("%s\n" % caps)
		return True

	def do_render(self, get_buffer): #gst.Buffer
		self._Signal_Buffer.signal.emit(get_buffer, self._index)
		return gst.FLOW_OK

	def do_preroll(self, buf):
		return gst.FLOW_OK

	def do_event(self, ev):
		return gst.FLOW_OK
class MultiMemSink(gst.BaseSink):
    """A GStreamer Sink writing buffers to a list in memory
    """

    __gsttemplates__ = (
            gst.PadTemplate("sink",
                gst.PAD_SINK,
                gst.PAD_ALWAYS,
                gst.caps_new_any()),
            )

    def __init__(self, name):
        self.__gobject_init__()
        self._data_list = []
        self.set_name(name)

    def get_property(self, name):
        if name == 'data_list':
            return self._data_list

    def do_render(self, bfr):
        self._data_list.append(bfr)
        return gst.FLOW_OK
    def __init__(self, caps=None, uri=None, stream=None, *args, **kwargs):
        gst.Bin.__init__(self, *args, **kwargs)
        if not caps:
            caps = gst.caps_new_any()
        self.caps = caps
        self.stream = stream
        self.typefind = gst.element_factory_make("typefind", "internal-typefind")
        self.add(self.typefind)

        self.uri = uri
        if self.uri and gst.uri_is_valid(self.uri):
            self.urisrc = gst.element_make_from_uri(gst.URI_SRC, uri, "urisrc")
            self.log("created urisrc %s / %r" % (self.urisrc.get_name(),
                                                 self.urisrc))
            self.add(self.urisrc)
            # Set the blocksize to 512kbytes, this will only matter for push-based sources
            if hasattr(self.urisrc.props, "blocksize"):
                self.urisrc.props.blocksize = 524288
            self.urisrc.link_pads_full("src", self.typefind, "sink",
                                       gst.PAD_LINK_CHECK_NOTHING)
        else:
            self._sinkpad = gst.GhostPad("sink", self.typefind.get_pad("sink"))
            self._sinkpad.set_active(True)
            self.add_pad(self._sinkpad)

        self.typefind.connect("have_type", self._typefindHaveTypeCb)

        self._srcpad = None

        self._dynamics = []

        self._validelements = [] #added elements

        self.debug("stream:%r" % self.stream)

        self.pending_newsegment = None
        self.eventProbeId = None
Exemple #35
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    def _computeAndSetValues(self):
        """ Calculate the new values to set on capsfilter and videobox. """
        if (self.widthin == -1 or self.heightin == -1 or
            self.widthout == -1 or self.heightout == -1):
            # FIXME : should we reset videobox/capsfilter properties here ?
            self.error(
                "We don't have input and output caps, "
                "we can't calculate videobox values")
            return

        self.log("incoming width/height/PAR/DAR : %d/%d/%r/%r" % (
            self.widthin, self.heightin,
            self.parin, self.darin))
        self.log("outgoing width/height/PAR/DAR : %d/%d/%r/%r" % (
            self.widthout, self.heightout,
            self.parout, self.darout))

        if self.darin == self.darout:
            self.log(
                "We have same input and output caps, "
                "resetting capsfilter and videobox settings")
            # same DAR, set inputcaps on capsfilter, reset videobox values
            caps = gst.caps_new_any()
            left = 0
            right = 0
            top = 0
            bottom = 0
        else:
            par = self.parout
            dar = self.darin
            fdarin = float(self.darin.num) / float(self.darin.denom)
            fdarout = float(self.darout.num) / float(self.darout.denom)
            if fdarin > fdarout:
                self.log("incoming DAR is greater that ougoing DAR. "
                         "Adding top/bottom borders")
                # width, PAR stays the same as output
                # calculate newheight = (PAR * widthout) / DAR
                newheight = ((par.num * self.widthout * dar.denom) /
                             (par.denom * dar.num))
                self.log("newheight should be %d" % newheight)
                extra = self.heightout - newheight
                top = extra / 2
                bottom = extra - top # compensate for odd extra
                left = right = 0
                # calculate filter caps
                astr = "width=%d,height=%d" % (self.widthout, newheight)
            else:
                self.log("incoming DAR is smaller than outgoing DAR. "
                         "Adding left/right borders")
                # height, PAR stays the same as output
                # calculate newwidth = (DAR * heightout) / PAR
                newwidth = ((dar.num * self.heightout * par.denom) /
                            (dar.denom * par.num))
                self.log("newwidth should be %d" % newwidth)
                extra = self.widthout - newwidth
                left = extra / 2
                right = extra - left # compensate for odd extra
                top = bottom = 0
                # calculate filter caps
                astr = "width=%d,height=%d" % (newwidth, self.heightout)
            caps = gst.caps_from_string(
                "video/x-raw-yuv,%s;video/x-raw-rgb,%s" % (astr, astr))

        # set properties on elements
        self.debug(
            "About to set left/right/top/bottom : %d/%d/%d/%d" % (
            -left, -right, -top, -bottom))
        self.videobox.props.left = -left
        self.videobox.props.right = -right
        self.videobox.props.top = -top
        self.videobox.props.bottom = -bottom
        self.debug("Settings filter caps %s" % caps.to_string())
        self.capsfilter.props.caps = caps
        self.debug("done")
Exemple #36
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    def __init__(self):
        QtCore.QThread.__init__(self)
        self.loop = gobject.MainLoop()
        self.filepath = None
        self.pipelineactive = False
        self.recording = False
        self.srcrate = "44100"
        self.recordrate = None

        self.settings = Settings()
        self.utils = Utils()

        self.pipeline = gst.Pipeline("Recording Pipeline")

        if sys.platform == 'darwin':
            self.audiosrc = gst.element_factory_make("osxaudiosrc", "audiosrc")
            self.srcratecap = gst.Caps("audio/x-raw-float, rate=" + self.srcrate)

        elif os.name == 'nt':
            self.audiosrc = gst.element_factory_make("dshowaudiosrc", "audiosrc")
            self.srcratecap = gst.caps_new_any()

        else:
            self.audiosrc = gst.element_factory_make("autoaudiosrc", "audiosrc")
            self.srcratecap = gst.caps_new_any()

        self.srcratefilter = gst.element_factory_make("capsfilter", "srcratefilter")
        self.srcratefilter.set_property("caps", self.srcratecap)

        self.audioconvert = gst.element_factory_make("audioconvert", "audioconvert")

        self.audioresample = gst.element_factory_make("audioresample", "audioresample")

        self.level = gst.element_factory_make("level", "level")

        self.recordingratecap = gst.caps_new_any()
        self.recordingratefilter = gst.element_factory_make("capsfilter", "recordingratefilter")
        self.recordingratefilter.set_property("caps", self.recordingratecap)

        self.valve = gst.element_factory_make("valve", "valve")

        self.sink = gst.Bin("Sink")

        self.audiorate = gst.element_factory_make("audiorate", "audiorate")
        self.audiorate.set_property("skip-to-first", True)
        self.wavenc = gst.element_factory_make("wavenc", "wavenc")
        self.filesink = gst.element_factory_make("filesink", "filesink")

        self.sink.add_many(self.audiorate, self.wavenc)
        self.audiorate.link(self.wavenc)

        self.sinkpad = self.audiorate.get_static_pad("sink")
        self.sinkghostpad = gst.GhostPad("sink", self.sinkpad)
        self.sinkghostpad.set_active(True)
        self.sink.add_pad(self.sinkghostpad)

        if not (self.pipeline and self.audiosrc and self.srcratecap and self.srcratefilter and self.audioconvert and
                self.audioresample and self.level and self.recordingratecap and self.recordingratefilter and
                self.valve):
            print("Not all elements could be loaded", sys.stderr)
            exit(-1)

        self.pipeline.add(self.audiosrc, self.srcratefilter, self.audioconvert, self.audioresample, self.level,
                          self.recordingratefilter, self.valve, self.sink)

        if not gst.element_link_many(self.audiosrc, self.srcratefilter, self.audioconvert, self.audioresample,
                                     self.level, self.recordingratefilter, self.valve, self.sink):
            print("Elements could not be linked", sys.stderr)
            exit(-1)

        self.valve.set_property("drop", True)

        self.pipeline.set_state(gst.STATE_PLAYING)
        self.pipelineactive = True

        self.bus = self.pipeline.get_bus()
        self.bus.add_signal_watch()
        self.bus.connect('message', self.on_message)

        Registry().register('recorder', self)
Exemple #37
0
 def __init__(self, uri, *args, **kwargs):
     self.uri = uri
     SinkFactory.__init__(self, *args, **kwargs)
     self.addInputStream(MultimediaStream(caps=gst.caps_new_any()))
   def __init__(self, FILECHOSEN, FILENAME, DESTDIR, CONTAINERCHOICE, AUDIOCODECVALUE, VIDEOCODECVALUE, PRESET, 
                      OHEIGHT, OWIDTH, FRATENUM, FRATEDEN, ACHANNELS, MULTIPASS, PASSCOUNTER, OUTPUTNAME, 
                      TIMESTAMP, ROTATIONVALUE, AUDIOPASSTOGGLE, VIDEOPASSTOGGLE, INTERLACED, INPUTVIDEOCAPS):
       gobject.GObject.__init__(self)

       # Choose plugin based on Container name
       self.container = CONTAINERCHOICE
       self.audiocaps = AUDIOCODECVALUE
       if self.container != False:
           self.containercaps = gst.Caps(codecfinder.containermap[CONTAINERCHOICE])
       # special case mp3 which is a no-container format with a container (id3mux)
       else:
           if self.audiocaps.intersect(gst.Caps("audio/mpeg, mpegversion=1, layer=3")):
               self.containercaps=gst.Caps("application/x-id3")
               self.container=gst.Caps("application/x-id3")


       # Choose plugin based on Codec Name
       # or switch to remuxing mode if any of the values are set to 'pastr'
       self.stoptoggle=False
       self.videocaps = VIDEOCODECVALUE # "novid" means we have a video file input, but do not want it
                                        #  while False means we don't have any video
       self.audiopasstoggle = AUDIOPASSTOGGLE
       self.interlaced = INTERLACED
       self.videopasstoggle = VIDEOPASSTOGGLE
       self.inputvideocaps = INPUTVIDEOCAPS
       self.doaudio= False
       self.preset = PRESET
       self.oheight = OHEIGHT
       self.owidth = OWIDTH
       self.fratenum = FRATENUM
       self.frateden = FRATEDEN
       self.achannels = ACHANNELS
       self.blackborderflag = False
       self.multipass = MULTIPASS
       self.passcounter = PASSCOUNTER
       self.outputfilename = OUTPUTNAME
       self.timestamp = TIMESTAMP
       self.rotationvalue = int(ROTATIONVALUE)
       self.vbox = {}

       # switching width and height around for rotationchoices where it makes sense
       if self.rotationvalue == 1 or self.rotationvalue == 3:
           nwidth = self.oheight
           nheight = self.owidth
           self.oheight = nheight
           self.owidth = nwidth 

       # if needed create a variable to store the filename of the multipass \
       # statistics file
       if self.multipass != False:
           self.cachefile = (str (glib.get_user_cache_dir()) + "/" + \
                   "multipass-cache-file" + self.timestamp + ".log")

       # gather preset data if relevant
       if self.preset != "nopreset":
           height, width, num, denom, pixelaspectratio = self.provide_presets()
           for acap in self.audiocaps:
               acap["channels"] = self.channels
           for vcap in self.videocaps:
               vcap["height"] = int(height)
               vcap["width"] = int(width)
               vcap["framerate"] = gst.Fraction(num, denom)
               if pixelaspectratio != gst.Fraction(0, 0):
                   vcap["pixel-aspect-ratio"] = pixelaspectratio


       # Create transcoding pipeline
       self.pipeline = gst.Pipeline("TranscodingPipeline")
       self.pipeline.set_state(gst.STATE_PAUSED)

       self.uridecoder = gst.element_factory_make("uridecodebin", "uridecoder")
       self.uridecoder.set_property("uri", FILECHOSEN)
       self.uridecoder.connect("pad-added", self.OnDynamicPad)

       # first check if we have a container format, if not set up output for possible outputs
       #  should not be hardcoded

       audiopreset=None
       videopreset=None
       if self.preset != "nopreset": 
           # print "got preset and will use Quality Normal"
           # these values should not be hardcoded, but gotten from profile XML file
           audiopreset="Quality Normal"
           videopreset="Quality Normal"

       if self.container==False:
           if self.audiocaps.intersect(gst.Caps("audio/mpeg, mpegversion=4")):
               self.audiocaps=gst.Caps("audio/mpeg, mpegversion=4, stream-format=adts")
           elif self.audiocaps.intersect(gst.Caps("audio/x-flac")):
               self.audiocaps=gst.Caps("audio/x-flac")
       else:
           self.encodebinprofile = gst.pbutils.EncodingContainerProfile ("containerformat", None , self.containercaps, None)
       if self.audiocaps != False:
           if self.container==False:
               self.encodebinprofile = gst.pbutils.EncodingAudioProfile (gst.Caps(self.audiocaps), audiopreset, gst.caps_new_any(), 0)
           else:
               self.audioprofile = gst.pbutils.EncodingAudioProfile (gst.Caps(self.audiocaps), audiopreset, gst.caps_new_any(), 0)
               self.encodebinprofile.add_profile(self.audioprofile)
       if self.videocaps != "novid":
           if (self.videocaps != False):
               self.videoprofile = gst.pbutils.EncodingVideoProfile (gst.Caps(self.videocaps), videopreset, gst.caps_new_any(), 0)
               self.encodebinprofile.add_profile(self.videoprofile)
       self.encodebin = gst.element_factory_make ("encodebin", None)
       self.encodebin.set_property("profile", self.encodebinprofile)
       self.encodebin.set_property("avoid-reencoding", True)
       self.pipeline.add(self.encodebin)
       self.encodebin.set_state(gst.STATE_PAUSED)

       if self.videopasstoggle==False:
           if self.container != False:
               self.videoflipper = gst.element_factory_make("videoflip")
               self.videoflipper.set_property("method", self.rotationvalue)
               self.pipeline.add(self.videoflipper)

               self.deinterlacer = gst.element_factory_make("deinterlace")
               self.pipeline.add(self.deinterlacer)

               self.colorspaceconversion = gst.element_factory_make("ffmpegcolorspace")
               self.pipeline.add(self.colorspaceconversion)
                       
               self.deinterlacer.link(self.colorspaceconversion)
	       self.colorspaceconversion.link(self.videoflipper)
               self.deinterlacer.set_state(gst.STATE_PAUSED)
               self.colorspaceconversion.set_state(gst.STATE_PAUSED)
               self.videoflipper.set_state(gst.STATE_PAUSED)

       self.remuxcaps = gst.Caps()
       if self.audiopasstoggle:
          self.remuxcaps.append(self.audiocaps)
       if self.videopasstoggle:
          self.remuxcaps.append(self.videocaps)
       if self.audiopasstoggle and not self.videopasstoggle:
          self.remuxcaps.append_structure(gst.Structure("video/x-raw-rgb"))
          self.remuxcaps.append_structure(gst.Structure("video/x-raw-yuv"))
       if self.videopasstoggle and not self.audiopasstoggle:
          self.remuxcaps.append_structure(gst.Structure("audio/x-raw-float"))
          self.remuxcaps.append_structure(gst.Structure("audio/x-raw-int"))
       if self.videocaps=="novid":
          if self.inputvideocaps != None:
              self.remuxcaps.append(self.inputvideocaps)
              self.remuxcaps.append_structure(gst.Structure("audio/x-raw-float"))
              self.remuxcaps.append_structure(gst.Structure("audio/x-raw-int"))


       if (self.audiopasstoggle) or (self.videopasstoggle) or (self.videocaps=="novid"):
           self.uridecoder.set_property("caps", self.remuxcaps)

 
       self.pipeline.add(self.uridecoder)

       self.transcodefileoutput = gst.element_factory_make("filesink", \
               "transcodefileoutput")
       self.transcodefileoutput.set_property("location", \
               (DESTDIR+"/"+self.outputfilename))
       self.pipeline.add(self.transcodefileoutput)
       self.encodebin.link(self.transcodefileoutput)

       self.uridecoder.set_state(gst.STATE_PAUSED)

       # print "setting uridcodebin to paused"
       self.BusMessages = self.BusWatcher()

       # we need to wait on this one before going further
       self.uridecoder.connect("no-more-pads", self.noMorePads)
 def testTimelinePipeline(self):
     stgs = gst.pbutils.EncodingAudioProfile(gst.Caps("video/x-dirac"), "test", gst.caps_new_any(), 0)
     ppln = ges.TimelinePipeline()
     tl = ges.Timeline()
     assert (ppln.add_timeline (tl) == True)
     assert (ppln.set_mode("TIMELINE_MODE_PREVIEW_AUDIO") == True)