# HG changeset patch
# User Chris Cannam
# Date 1349705987 -3600
# Node ID d43d1adecea652e51663d37085792b172561b186
# Parent  99038dfea9e5b61cadcdb227744379f61848c40c
Sketch implementation of tempo estimator

diff -r 99038dfea9e5 -r d43d1adecea6 tempo_estimator.py
--- a/tempo_estimator.py	Mon Oct 08 15:12:37 2012 +0100
+++ b/tempo_estimator.py	Mon Oct 08 15:19:47 2012 +0100
@@ -1,5 +1,15 @@
+
+import audiofile as af
+
+def estimate_tempo_of_samples(samples, samplerate):
+    """Given some audio samples and their samplerate, return their estimated tempo in bpm."""
+    df = detection_function(samples)
+    acf = autocorrelation(df)
+    tempo = find_tempo_from_autocorrelation(acf)
+    return tempo
 
 def estimate_tempo_of_file(filename):
     """Given the name of a WAV file, return the estimated tempo in bpm."""
-    return 0
+    (samples, samplerate) = af.read_all_mono_samples_from_file(filename)
+    return estimate_tempo_of_samples(samples, samplerate)