--- /dev/null
+
+/*
+ * CINELERRA
+ * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#ifndef TIMESTRETCHENGINE_H
+#define TIMESTRETCHENGINE_H
+
+#include "samples.inc"
+#include <stdint.h>
+
+
+class TimeStretchEngine
+{
+public:
+// scale = out length / in length
+ TimeStretchEngine(double scale, int sample_rate, int window_time);
+ ~TimeStretchEngine();
+
+ void reset();
+ void update(double scale, int sample_rate, int window_time);
+ void overlay(double *out, double *in, int size, int skirt);
+// Returns the number of samples in the output buffer
+ int process(Samples *in_buffer, int in_size);
+ int get_output_size();
+// Return the output buffer
+ double* get_samples();
+// Increment output buffer counters and shift output
+ void read_output(Samples *buffer, int size);
+
+private:
+// ms length of average window
+ int window_time;
+ int sample_rate;
+ int window_size;
+// Queer eye for the straight buffer
+ int window_skirt;
+ double *output;
+ int output_allocation;
+ int output_size;
+// Sample at beginning of output buffer
+ int64_t output_sample;
+ double *input;
+ int input_allocation;
+ int input_size;
+// Sample at beginning of input buffer
+ int64_t input_sample;
+ double scale;
+};
+
+
+
+
+
+#endif
+
+
+