[Gtk-sharp-list] Re: LinkMany patch

[Peter Johanson]

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would help if i actually attached the d*mn patch...


-pete


On Fri, May 14, 2004 at 07:24:18PM -0400, Peter Johanson wrote:
> Hey all,
>=20
> attached is a patch implementing the Element.LinkMany method for
> chaining together a set of Element instances, and a change to one of the
> sampmles to show how it is used.
>=20
> This had been wrapped using the gapi stuff a while ago, from what i can
> find, but it no longer was working due to using an apparently outdated
> <parameter ellipses=3D"true"> style setup. If there actually is a way to
> go from a params -> va_list, that method would probably be preferable,
> but I've not found any, so I implemented it this way.
>=20
> -pete
> =20
> PS - Changelog addition included in the patch as requested.
>=20
> PPS - I've started work on creating a Gst# backend for muine, and it's
> been really helpful in finding which tidbits of Gst# need some
> massaging. I had a working (mostly) backend using the Gst.Play stuff,
> but was advised by Company in #gstreamer that it'd be better to create
> my own Pipeline and individual components, so i've got stuff close
> to back to working with that layout.
>=20
> --=20
> Peter Johanson
> <latexer@gentoo.org>
>=20
> Key ID =3D 0x6EFA3917
> Key fingerprint =3D A90A 2518 57B1 9D20 9B71  A2FF 8649 439B 6EFA 3917



--=20
Peter Johanson
<latexer@gentoo.org>

Key ID =3D 0x6EFA3917
Key fingerprint =3D A90A 2518 57B1 9D20 9B71  A2FF 8649 439B 6EFA 3917

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Index: ChangeLog
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /mono/gst-sharp/ChangeLog,v
retrieving revision 1.11
diff -u -b -B -r1.11 ChangeLog
--- ChangeLog	8 May 2004 19:45:53 -0000	1.11
+++ ChangeLog	15 May 2004 00:36:13 -0000
@@ -1,3 +1,9 @@
+2004-05-14  Peter Johanson  <latexer@gentoo.org>
+
+	* gst-sharp/Element.custom: Implement LinkMany shortcut for
+	chaining up a bunch of Elements.
+	* sample/PlayMp3.cs: Change to use new LinkMany
+
 2004-05-08  John Luke  <jluke@cfl.rr.com>
=20
 	* gst-sharp/Element.custom: add overloads for bool and
Index: gst-sharp/Element.custom
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /mono/gst-sharp/gst-sharp/Element.custom,v
retrieving revision 1.2
diff -u -b -B -r1.2 Element.custom
--- gst-sharp/Element.custom	8 May 2004 19:18:36 -0000	1.2
+++ gst-sharp/Element.custom	15 May 2004 00:36:13 -0000
@@ -26,3 +26,19 @@
 			GLib.Value val =3D new GLib.Value (value);
 			gst_element_set_property (Handle, property_name, ref val);
 		}
+
+		// Used to chain together a set of Elements in order.
+		public bool LinkMany(Element second, params Element[] args) {
+			if(second =3D=3D null)
+				return false;
+			Link(second);
+			Element tmp =3D second;
+			foreach(Element element in args) {
+				if(element =3D=3D null)
+					return false;
+				if(tmp.Link(element) =3D=3D false)
+					return false;
+				tmp =3D element;
+			}
+			return true;
+		}
Index: sample/PlayMp3.cs
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=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /mono/gst-sharp/sample/PlayMp3.cs,v
retrieving revision 1.2
diff -u -b -B -r1.2 PlayMp3.cs
--- sample/PlayMp3.cs	8 May 2004 19:18:36 -0000	1.2
+++ sample/PlayMp3.cs	15 May 2004 00:36:13 -0000
@@ -36,8 +36,7 @@
 		bin.Add (sink);
    =20
 		// connect the elements
-		filesrc.Link (mad);
-		mad.Link (sink);
+		filesrc.LinkMany (mad, sink);
 	=09
 		// start playing
 		bin.SetState (ElementState.Playing);

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