From 27fbdb97d126d2b29611778362e73b03dc75e472 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= Date: Sun, 27 Jan 2008 05:56:04 +0000 Subject: 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. --- ext/soundtouch/Makefile.am | 16 +-- ext/soundtouch/gstbpmdetect.cc | 223 +++++++++++++++++++++++++++++++++++++++++ ext/soundtouch/gstbpmdetect.hh | 58 +++++++++++ ext/soundtouch/gstpitch.cc | 29 ++---- ext/soundtouch/plugin.c | 43 ++++++++ 5 files changed, 343 insertions(+), 26 deletions(-) create mode 100644 ext/soundtouch/gstbpmdetect.cc create mode 100644 ext/soundtouch/gstbpmdetect.hh create mode 100644 ext/soundtouch/plugin.c (limited to 'ext') diff --git a/ext/soundtouch/Makefile.am b/ext/soundtouch/Makefile.am index 2f92ef43..555c88c8 100644 --- a/ext/soundtouch/Makefile.am +++ b/ext/soundtouch/Makefile.am @@ -1,9 +1,13 @@ -plugin_LTLIBRARIES = libgstpitch.la +plugin_LTLIBRARIES = libgstsoundtouch.la -libgstpitch_la_SOURCES = gstpitch.cc +libgstsoundtouch_la_SOURCES = \ + plugin.c \ + gstpitch.cc \ + gstbpmdetect.cc -libgstpitch_la_CXXFLAGS = $(GST_BASE_CFLAGS) $(GST_CFLAGS) $(SOUNDTOUCH_CFLAGS) -libgstpitch_la_LIBADD = $(GST_BASE_LIBS) $(GST_CONTROLLER_LIBS) $(GST_LIBS) $(SOUNDTOUCH_LIBS) -libgstpitch_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) +libgstsoundtouch_la_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_BASE_CFLAGS) $(GST_CFLAGS) $(SOUNDTOUCH_CFLAGS) +libgstsoundtouch_la_CXXFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_BASE_CFLAGS) $(GST_CFLAGS) $(SOUNDTOUCH_CFLAGS) +libgstsoundtouch_la_LIBADD = $(GST_PLUGINS_BASE_LIBS) $(GST_BASE_LIBS) $(GST_CONTROLLER_LIBS) $(GST_LIBS) $(SOUNDTOUCH_LIBS) -lgstaudio-$(GST_MAJORMINOR) -lBPM $(LIBM) +libgstsoundtouch_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) -noinst_HEADERS = gstpitch.hh +noinst_HEADERS = gstpitch.hh gstbpmdetect.hh diff --git a/ext/soundtouch/gstbpmdetect.cc b/ext/soundtouch/gstbpmdetect.cc new file mode 100644 index 00000000..e9e2e274 --- /dev/null +++ b/ext/soundtouch/gstbpmdetect.cc @@ -0,0 +1,223 @@ +/* GStreamer + * Copyright (C) 2008 Sebastian Dröge + * + * 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. + */ + +#define FLOAT_SAMPLES 1 +#include +/* FIXME: workaround for SoundTouch.h of version 1.3.1 defining those + * variables while it shouldn't. */ +#undef VERSION +#undef PACKAGE_VERSION +#undef PACKAGE_TARNAME +#undef PACKAGE_STRING +#undef PACKAGE_NAME +#undef PACKAGE_BUGREPORT +#undef PACKAGE + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include +#include +#include +#include +#include "gstbpmdetect.hh" + +GST_DEBUG_CATEGORY_STATIC (gst_bpm_detect_debug); +#define GST_CAT_DEFAULT gst_bpm_detect_debug + +#define GST_BPM_DETECT_GET_PRIVATE(o) (o->priv) + +struct _GstBPMDetectPrivate +{ + gfloat bpm; + BPMDetect *detect; +}; + +#define ALLOWED_CAPS \ + "audio/x-raw-float, " \ + " width = (int) 32, " \ + " endianness = (int) BYTE_ORDER, " \ + " rate = (int) [ 8000, MAX ], " \ + " channels = (int) [ 1, 2 ]" + +GST_BOILERPLATE (GstBPMDetect, gst_bpm_detect, GstAudioFilter, + GST_TYPE_AUDIO_FILTER); + +static void gst_bpm_detect_finalize (GObject * object); +static gboolean gst_bpm_detect_stop (GstBaseTransform * trans); +static gboolean gst_bpm_detect_event (GstBaseTransform * trans, + GstEvent * event); +static GstFlowReturn gst_bpm_detect_transform_ip (GstBaseTransform * trans, + GstBuffer * in); +static gboolean gst_bpm_detect_setup (GstAudioFilter * filter, + GstRingBufferSpec * format); + +static void +gst_bpm_detect_base_init (gpointer g_class) +{ + GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); + GstCaps *caps; + + gst_element_class_set_details_simple (element_class, "BPM Detector", + "Filter/Analyzer/Audio", "Detect the BPM of an audio stream", + "Sebastian Dröge "); + + caps = gst_caps_from_string (ALLOWED_CAPS); + gst_audio_filter_class_add_pad_templates (GST_AUDIO_FILTER_CLASS (g_class), + caps); + gst_caps_unref (caps); +} + +static void +gst_bpm_detect_class_init (GstBPMDetectClass * klass) +{ + GObjectClass *gobject_class = G_OBJECT_CLASS (klass); + GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass); + GstAudioFilterClass *filter_class = GST_AUDIO_FILTER_CLASS (klass); + + GST_DEBUG_CATEGORY_INIT (gst_bpm_detect_debug, "bpm_detect", 0, + "audio bpm detection element"); + + gobject_class->finalize = gst_bpm_detect_finalize; + + trans_class->stop = GST_DEBUG_FUNCPTR (gst_bpm_detect_stop); + trans_class->event = GST_DEBUG_FUNCPTR (gst_bpm_detect_event); + trans_class->transform_ip = GST_DEBUG_FUNCPTR (gst_bpm_detect_transform_ip); + trans_class->passthrough_on_same_caps = TRUE; + + filter_class->setup = GST_DEBUG_FUNCPTR (gst_bpm_detect_setup); + + g_type_class_add_private (gobject_class, sizeof (GstBPMDetectPrivate)); +} + +static void +gst_bpm_detect_init (GstBPMDetect * bpm_detect, GstBPMDetectClass * g_class) +{ + bpm_detect->priv = G_TYPE_INSTANCE_GET_PRIVATE ((bpm_detect), + GST_TYPE_BPM_DETECT, GstBPMDetectPrivate); + + bpm_detect->priv->detect = NULL; + bpm_detect->bpm = 0.0; +} + +static void +gst_bpm_detect_finalize (GObject * object) +{ + GstBPMDetect *bpm_detect = GST_BPM_DETECT (object); + + if (bpm_detect->priv->detect) { + delete bpm_detect->priv->detect; + + bpm_detect->priv->detect = NULL; + } + + G_OBJECT_CLASS (parent_class)->finalize (object); +} + +static gboolean +gst_bpm_detect_stop (GstBaseTransform * trans) +{ + GstBPMDetect *bpm_detect = GST_BPM_DETECT (trans); + + if (bpm_detect->priv->detect) { + delete bpm_detect->priv->detect; + + bpm_detect->priv->detect = NULL; + } + bpm_detect->bpm = 0.0; + + return TRUE; +} + +static gboolean +gst_bpm_detect_event (GstBaseTransform * trans, GstEvent * event) +{ + GstBPMDetect *bpm_detect = GST_BPM_DETECT (trans); + + switch (GST_EVENT_TYPE (event)) { + case GST_EVENT_FLUSH_STOP: + case GST_EVENT_EOS: + case GST_EVENT_NEWSEGMENT: + if (bpm_detect->priv->detect) { + delete bpm_detect->priv->detect; + + bpm_detect->priv->detect = NULL; + } + bpm_detect->bpm = 0.0; + break; + default: + break; + } + + return TRUE; +} + +static gboolean +gst_bpm_detect_setup (GstAudioFilter * filter, GstRingBufferSpec * format) +{ + GstBPMDetect *bpm_detect = GST_BPM_DETECT (filter); + + if (bpm_detect->priv->detect) { + delete bpm_detect->priv->detect; + + bpm_detect->priv->detect = NULL; + } + + return TRUE; +} + +static GstFlowReturn +gst_bpm_detect_transform_ip (GstBaseTransform * trans, GstBuffer * in) +{ + GstBPMDetect *bpm_detect = GST_BPM_DETECT (trans); + GstAudioFilter *filter = GST_AUDIO_FILTER (trans); + gint nsamples; + gfloat *data; + gfloat bpm; + + if (filter->format.channels == 0 || filter->format.rate == 0) { + GST_ERROR_OBJECT (bpm_detect, "No channels or rate set yet"); + return GST_FLOW_ERROR; + } + + nsamples = GST_BUFFER_SIZE (in) / (4 * filter->format.channels); + + if (!bpm_detect->priv->detect) + bpm_detect->priv->detect = + new BPMDetect (filter->format.channels, filter->format.rate); + + data = (gfloat *) g_memdup (GST_BUFFER_DATA (in), GST_BUFFER_SIZE (in)); + bpm_detect->priv->detect->inputSamples (data, nsamples); + g_free (data); + + bpm = bpm_detect->priv->detect->getBpm (); + if (bpm != 0.0 && fabs (bpm_detect->bpm - bpm) >= 1.0) { + GstTagList *tags = gst_tag_list_new (); + + gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE_ALL, GST_TAG_BEATS_PER_MINUTE, + bpm, NULL); + gst_element_found_tags (GST_ELEMENT (bpm_detect), tags); + + GST_INFO_OBJECT (bpm_detect, "Detected BPM: %lf\n", bpm); + bpm_detect->bpm = bpm; + } + + return GST_FLOW_OK; +} 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 + * + * 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 +#include +#include + +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__ */ diff --git a/ext/soundtouch/gstpitch.cc b/ext/soundtouch/gstpitch.cc index 83c043e9..7ee726f0 100644 --- a/ext/soundtouch/gstpitch.cc +++ b/ext/soundtouch/gstpitch.cc @@ -62,11 +62,10 @@ enum #define SUPPORTED_CAPS \ GST_STATIC_CAPS( \ "audio/x-raw-float, " \ - "rate = (int) [ 8000, 48000 ], " \ + "rate = (int) [ 8000, MAX ], " \ "channels = (int) [ 1, 2 ], " \ "endianness = (int) BYTE_ORDER, " \ - "width = (int) 32, " \ - "buffer-frames = (int) [ 0, MAX ]" \ + "width = (int) 32" \ ) static GstStaticPadTemplate gst_pitch_sink_template = @@ -124,6 +123,9 @@ gst_pitch_class_init (GstPitchClass * klass) gobject_class = G_OBJECT_CLASS (klass); element_class = GST_ELEMENT_CLASS (klass); + GST_DEBUG_CATEGORY_INIT (pitch_debug, "pitch", 0, + "audio pitch control element"); + gobject_class->set_property = gst_pitch_set_property; gobject_class->get_property = gst_pitch_get_property; gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_pitch_dispose); @@ -725,9 +727,11 @@ gst_pitch_sink_event (GstPad * pad, GstEvent * event) switch (GST_EVENT_TYPE (event)) { case GST_EVENT_FLUSH_STOP: gst_pitch_flush_buffer (pitch, FALSE); + pitch->priv->st->clear (); break; case GST_EVENT_EOS: gst_pitch_flush_buffer (pitch, TRUE); + pitch->priv->st->clear (); break; case GST_EVENT_NEWSEGMENT: if (!gst_pitch_process_segment (pitch, &event)) { @@ -737,6 +741,7 @@ gst_pitch_sink_event (GstPad * pad, GstEvent * event) GST_PITCH_GET_PRIVATE (pitch)->pending_segment = event; event = NULL; } + pitch->priv->st->clear (); break; default: break; @@ -812,6 +817,7 @@ gst_pitch_change_state (GstElement * element, GstStateChange transition) case GST_STATE_CHANGE_READY_TO_PAUSED: pitch->next_buffer_time = 0; pitch->next_buffer_offset = 0; + pitch->priv->st->clear (); break; case GST_STATE_CHANGE_PAUSED_TO_PLAYING: break; @@ -839,20 +845,3 @@ gst_pitch_change_state (GstElement * element, GstStateChange transition) return ret; } - -static gboolean -plugin_init (GstPlugin * plugin) -{ - gst_controller_init (NULL, NULL); - - GST_DEBUG_CATEGORY_INIT (pitch_debug, "pitch", 0, - "audio pitch control element"); - - return gst_element_register (plugin, "pitch", GST_RANK_NONE, GST_TYPE_PITCH); -} - -GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, - GST_VERSION_MINOR, - "soundtouch", - "Audio Pitch Controller", - plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN) diff --git a/ext/soundtouch/plugin.c b/ext/soundtouch/plugin.c new file mode 100644 index 00000000..5e8cb156 --- /dev/null +++ b/ext/soundtouch/plugin.c @@ -0,0 +1,43 @@ +/* GStreamer soundtouch plugin + * Copyright (C) 2008 Sebastian Dröge + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include "gstpitch.hh" +#include "gstbpmdetect.hh" + +static gboolean +plugin_init (GstPlugin * plugin) +{ + gst_controller_init (NULL, NULL); + + return gst_element_register (plugin, "pitch", GST_RANK_NONE, GST_TYPE_PITCH) + && gst_element_register (plugin, "bpmdetect", GST_RANK_NONE, + GST_TYPE_BPM_DETECT); +} + +GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, + GST_VERSION_MINOR, + "soundtouch", + "Audio Pitch Controller & BPM Detection", + plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN) -- cgit v1.2.1