ext/soundtouch/: Add BPM detection plugin based on SoundTouch's libBPM.

Original commit message from CVS:
* ext/soundtouch/Makefile.am:
* ext/soundtouch/gstbpmdetect.cc:
* ext/soundtouch/gstbpmdetect.hh:
* ext/soundtouch/plugin.c: (plugin_init):
Add BPM detection plugin based on SoundTouch's libBPM.
* ext/soundtouch/gstpitch.cc:
Allow sample rates until MAX instead of only 48kHz and remove the
buffer-frames field from that caps.
Clear the remaining samples completely when necessary to get into
a clean state again.

1 files changed, 58 insertions, 0 deletions

diff --git a/ext/soundtouch/gstbpmdetect.hh b/ext/soundtouch/gstbpmdetect.hh
new file mode 100644
index 00000000..2f6abdcf
--- /dev/null
+++ b/ext/soundtouch/gstbpmdetect.hh
@@ -0,0 +1,58 @@
+/* GStreamer
+ * Copyright (C) 2008 Sebastian Dröge <slomo@circular-chaos.org> 
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+
+#ifndef __GST_BPM_DETECT_H__
+#define __GST_BPM_DETECT_H__
+
+
+#include <gst/gst.h>
+#include <gst/base/gstbasetransform.h>
+#include <gst/audio/gstaudiofilter.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_BPM_DETECT            (gst_bpm_detect_get_type())
+#define GST_BPM_DETECT(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BPM_DETECT,GstBPMDetect))
+#define GST_IS_BPM_DETECT(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BPM_DETECT))
+#define GST_BPM_DETECT_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_BPM_DETECT,GstBPMDetectClass))
+#define GST_IS_BPM_DETECT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_BPM_DETECT))
+
+typedef struct _GstBPMDetect GstBPMDetect;
+typedef struct _GstBPMDetectClass GstBPMDetectClass;
+typedef struct _GstBPMDetectPrivate GstBPMDetectPrivate;
+
+struct _GstBPMDetect {
+  GstAudioFilter element;
+
+  gfloat bpm;
+
+  GstBPMDetectPrivate *priv;
+};
+
+struct _GstBPMDetectClass {
+  GstAudioFilterClass parent_class;
+};
+
+GType gst_bpm_detect_get_type (void);
+
+
+G_END_DECLS
+
+#endif /* __GST_BPM_DETECT_H__ */