# HG changeset patch
# User Nicholas Jillings <nicholas.jillings@mail.bcu.ac.uk>
# Date 1464253635 -3600
# Node ID fbc22422d73da39906081327e5ac0187e8bdb35d
# Parent  dc13bd68ea34b60f55e2ecb95d8635bbc18dab89
Initial work for #1

diff -r dc13bd68ea34 -r fbc22422d73d js/core.js
--- a/js/core.js	Thu May 26 09:35:07 2016 +0100
+++ b/js/core.js	Thu May 26 10:07:15 2016 +0100
@@ -1676,7 +1676,7 @@
 			} else {
                  this.outputGain.gain.setValueAtTime(0.0,startTime);
             }
-			this.bufferNode.start(startTime);
+			this.bufferNode.start(startTime,this.specification.startTime || 0, this.specification.stopTime-this.specification.startTime || this.buffer.buffer.duration);
             this.bufferNode.playbackStartTime = audioEngineContext.timer.getTestTime();
 		}
 	};
diff -r dc13bd68ea34 -r fbc22422d73d js/specification.js
--- a/js/specification.js	Thu May 26 09:35:07 2016 +0100
+++ b/js/specification.js	Thu May 26 10:07:15 2016 +0100
@@ -626,6 +626,8 @@
 			this.marker = null;
 			this.enforce = false;
 			this.gain = 0.0;
+            this.startTime = null;
+            this.stopTime = null;
 			this.schema = specification.schema.getAllElementsByName('audioelement')[0];;
 			this.parent = null;
 			this.decode = function(parent,xml)
diff -r dc13bd68ea34 -r fbc22422d73d xml/test-schema.xsd
--- a/xml/test-schema.xsd	Thu May 26 09:35:07 2016 +0100
+++ b/xml/test-schema.xsd	Thu May 26 10:07:15 2016 +0100
@@ -184,6 +184,20 @@
                 <xs:attribute ref="alwaysInclude" />
                 <xs:attribute ref="preSilence" />
                 <xs:attribute ref="postSilence" />
+                <xs:attribute name="startTime" use="optional">
+                    <xs:simpleType>
+                        <xs:restriction base="xs:decimal">
+                            <xs:minInclusive value="0" />
+                        </xs:restriction>
+                    </xs:simpleType>
+                </xs:attribute>
+                <xs:attribute name="stopTime" use="optional">
+                    <xs:simpleType>
+                        <xs:restriction base="xs:decimal">
+                            <xs:minInclusive value="0" />
+                        </xs:restriction>
+                    </xs:simpleType>
+                </xs:attribute>
             </xs:complexType>
         </xs:element>