Extend the sample source to support playing at specified order

1 files changed, 24 insertions, 0 deletions

diff --git a/src/audiere.h b/src/audiere.h
index bbeee49..e947501 100644
--- a/src/audiere.h
+++ b/src/audiere.h
@@ -363,6 +363,30 @@ namespace audiere {
      * the tag comes from, i.e. "ID3v1", "ID3v2", or "vorbis".
      */
     virtual const char* ADR_CALL getTagType(int i) = 0;
+
+    /**
+     * Returns the order of the source. This is only for formats
+     * supported by dumb.
+     */
+    ADR_METHOD(int) getOrder() { return 0; }
+
+    /**
+     * Sets the order of the source. This is only for formats
+     * supported by dumb.
+     */
+    ADR_METHOD(bool) setOrder(int order) { return false; }
+
+    /**
+     * Returns the volume of specified channel of the source. This is
+     * only for formats supported by dumb.
+     */
+    ADR_METHOD(float) getChannelVolume(int channel = 0) { return 1.0f; }
+
+    /**
+     * Sets the volume of specified of the source. This is only for
+     * formats supported by dumb.
+     */
+    ADR_METHOD(bool) setChannelVolume(int channel, float volume) { return false; }
   };
   typedef RefPtr<SampleSource> SampleSourcePtr;