diff data/model/DenseTimeValueModel.h @ 363:0e30c8ec15a0

* Add wave file model method for reading more than one channel at once,
  avoiding ludicrously expensive backward seeks and double-reads when
  playing multi-channel files or using them as inputs to feature extraction
  plugins

--- a/data/model/DenseTimeValueModel.h	Thu Jan 24 11:03:59 2008 +0000
+++ b/data/model/DenseTimeValueModel.h	Thu Jan 24 14:35:43 2008 +0000
@@ -71,6 +71,15 @@
     virtual size_t getData(int channel, size_t start, size_t count,
                            double *buffer) const = 0;
 
+    /**
+     * Get the specified set of samples from given contiguous range
+     * of channels of the model in single-precision floating-point
+     * format.  Return the number of sample frames actually retrieved.
+     */
+    virtual size_t getData(size_t fromchannel, size_t tochannel,
+                           size_t start, size_t count,
+                           float **buffers) const = 0;
+
     QString getTypeName() const { return tr("Dense Time-Value"); }
 };