void InsertReplayGain (Pad pad, bool blocked)
{
lock (pipeline_lock) {
if (rgvolume == null) {
rgvolume = ElementFactory.Make ("rgvolume", "rgvolume");
Add (rgvolume);
rgvolume.SyncStateWithParent ();
visible_sink.SetTarget (rgvolume.GetStaticPad ("sink"));
rgvolume.Link (first);
first = rgvolume;
}
}
visible_sink.SetBlocked (false, (_, __) => { });
}
private void CameraScanWin()
{
Gst.Element e = Gst.ElementFactory.Make ("dshowvideosrc");
Gst.Interfaces.PropertyProbeAdapter ppa = new Gst.Interfaces.PropertyProbeAdapter (e.Handle);
object[] devices = ppa.ProbeAndGetValues ("device-name");
FillCombo (cbxCamera);
foreach (String dev in devices) {
Gst.Caps caps = e.GetStaticPad ("src").Caps;
foreach (Gst.Structure cap in caps) {
if (cap.HasField ("width") && cap.HasField ("height")) {
Gst.GLib.Value s;
int height = 0, width = 0;
s = cap.GetValue ("width");
if (s.Val is int) {
width = (int)s.Val;
}
s = cap.GetValue ("height");
if (s.Val is int) {
height = (int)s.Val;
}
if (width == 320 && height == 240) {
s = cap.GetValue ("framerate");
Gst.Fraction f;
if (s.Val is Gst.FractionRange) {
f = new Gst.FractionRange (s).Max; // ? Min
} else if (s.Val is Gst.Fraction) {
f = new Gst.Fraction (s);
} else if (s.Val is int) {
f = new Gst.Fraction ((int)s.Val, 1);
} else
continue;
cameras [dev] = new GstCapture.cameraDevice (dev, f, width, height);
cbxCamera.AppendText (dev);
}
}
}
}
}
public AudioSinkBin (string elementName) : base(elementName)
{
hw_audio_sink = SelectAudioSink ();
Add (hw_audio_sink);
first = hw_audio_sink;
// Our audio sink is a tee, so plugins can attach their own pipelines
audiotee = ElementFactory.Make ("tee", "audiotee") as Tee;
if (audiotee == null) {
Log.Error ("Can not create audio tee!");
} else {
Add (audiotee);
}
volume = FindVolumeProvider (hw_audio_sink);
if (volume != null) {
// If the sink provides its own volume property we assume that it will
// also save that value across program runs. Pulsesink has this behaviour.
VolumeNeedsSaving = false;
} else {
volume = ElementFactory.Make ("volume", "volume");
VolumeNeedsSaving = true;
Add (volume);
volume.Link (hw_audio_sink);
first = volume;
}
equalizer = ElementFactory.Make ("equalizer-10bands", "equalizer-10bands");
if (equalizer != null) {
Element eq_audioconvert = ElementFactory.Make ("audioconvert", "audioconvert");
Element eq_audioconvert2 = ElementFactory.Make ("audioconvert", "audioconvert2");
preamp = ElementFactory.Make ("volume", "preamp");
Add (eq_audioconvert, preamp, equalizer, eq_audioconvert2);
Element.Link (eq_audioconvert, preamp, equalizer, eq_audioconvert2, first);
first = eq_audioconvert;
Log.Debug ("Built and linked Equalizer");
}
// Link the first tee pad to the primary audio sink queue
Pad sinkpad = first.GetStaticPad ("sink");
Pad pad = audiotee.GetRequestPad ("src%d");
audiotee.AllocPad = pad;
pad.Link (sinkpad);
first = audiotee;
visible_sink = new GhostPad ("sink", first.GetStaticPad ("sink"));
AddPad (visible_sink);
}
void RemoveReplayGain (Pad pad, bool blocked)
{
lock (pipeline_lock) {
if (rgvolume != null) {
first = rgvolume.GetStaticPad ("src").Peer.Parent as Element;
rgvolume.Unlink (first);
rgvolume.SetState (State.Null);
Remove (rgvolume);
rgvolume = null;
visible_sink.SetTarget (first.GetStaticPad ("sink"));
}
}
visible_sink.SetBlocked (false, (_, __) => { });
}
PadProbeReturn RemoveReplayGain(Pad pad, PadProbeInfo info)
{
lock (pipeline_lock) {
if (rgvolume != null) {
first = rgvolume.GetStaticPad ("src").Peer.Parent as Element;
rgvolume.Unlink (first);
rgvolume.SetState (State.Null);
Remove (rgvolume);
rgvolume = null;
visible_sink.SetTarget (first.GetStaticPad ("sink"));
}
}
return PadProbeReturn.Remove;
}
PadProbeReturn InsertReplayGain(Pad pad, PadProbeInfo info)
{
lock (pipeline_lock) {
if (rgvolume == null) {
rgvolume = ElementFactory.Make ("rgvolume", "rgvolume");
Add (rgvolume);
rgvolume.SyncStateWithParent ();
visible_sink.SetTarget (rgvolume.GetStaticPad ("sink"));
rgvolume.Link (first);
first = rgvolume;
}
}
return PadProbeReturn.Remove;
}
// Shows the CURRENT capabilities of the requested pad in the given element */
static void PrintPadCapabilities(Element element, string padName)
{
// Retrieve pad
var pad = element.GetStaticPad (padName);
if (pad == null) {
Console.WriteLine ("Could not retrieve pad '{0}'", padName);
return;
}
// Retrieve negotiated caps (or acceptable caps if negotiation is not finished yet)
var caps = pad.CurrentCaps;
if (caps == null)
caps = pad.Caps;
/* Print and free */
Console.WriteLine ("Caps for the {0} pad:", padName);
PrintCaps (caps, " ");
}
