tizen 2.3 releasetizen_2.3_releasesubmit/tizen_2.3/20150202.062707tizen_2.3

1 files changed, 0 insertions, 1164 deletions

diff --git a/wearable/gst/spectrum/gstspectrum.c b/wearable/gst/spectrum/gstspectrum.c
deleted file mode 100644
index 4d7250b..0000000
--- a/wearable/gst/spectrum/gstspectrum.c
+++ /dev/null
@@ -1,1164 +0,0 @@
-/* GStreamer
- * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
- *               <2006,2011> Stefan Kost <ensonic@users.sf.net>
- *               <2007-2009> Sebastian Dröge <sebastian.droege@collabora.co.uk>
- *
- * 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.
- */
-/**
- * SECTION:element-spectrum
- *
- * The Spectrum element analyzes the frequency spectrum of an audio signal.
- * If the #GstSpectrum:post-messages property is #TRUE, it sends analysis results
- * as application messages named
- * <classname>&quot;spectrum&quot;</classname> after each interval of time given
- * by the #GstSpectrum:interval property.
- *
- * The message's structure contains some combination of these fields:
- * <itemizedlist>
- * <listitem>
- *   <para>
- *   #GstClockTime
- *   <classname>&quot;timestamp&quot;</classname>:
- *   the timestamp of the buffer that triggered the message.
- *   </para>
- * </listitem>
- * <listitem>
- *   <para>
- *   #GstClockTime
- *   <classname>&quot;stream-time&quot;</classname>:
- *   the stream time of the buffer.
- *   </para>
- * </listitem>
- * <listitem>
- *   <para>
- *   #GstClockTime
- *   <classname>&quot;running-time&quot;</classname>:
- *   the running_time of the buffer.
- *   </para>
- * </listitem>
- * <listitem>
- *   <para>
- *   #GstClockTime
- *   <classname>&quot;duration&quot;</classname>:
- *   the duration of the buffer.
- *   </para>
- * </listitem>
- * <listitem>
- *   <para>
- *   #GstClockTime
- *   <classname>&quot;endtime&quot;</classname>:
- *   the end time of the buffer that triggered the message as stream time (this
- *   is deprecated, as it can be calculated from stream-time + duration)
- *   </para>
- * </listitem>
- * <listitem>
- *   <para>
- *   #GstValueList of #gfloat
- *   <classname>&quot;magnitude&quot;</classname>:
- *   the level for each frequency band in dB. All values below the value of the
- *   #GstSpectrum:threshold property will be set to the threshold. Only present
- *   if the #GstSpectrum:message-magnitude property is %TRUE.
- *   </para>
- * </listitem>
- * <listitem>
- *   <para>
- *   #GstValueList of #gfloat
- *   <classname>&quot;phase&quot;</classname>:
- *   The phase for each frequency band. The value is between -pi and pi. Only
- *   present if the #GstSpectrum:message-phase property is %TRUE.
- *   </para>
- * </listitem>
- * </itemizedlist>
- *
- * If #GstSpectrum:multi-channel property is set to true. magnitude and phase
- * fields will be each a nested #GstValueArray. The first dimension are the
- * channels and the second dimension are the values.
- *
- * <refsect2>
- * <title>Example application</title>
- * |[
- * <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" parse="text" href="../../../../tests/examples/spectrum/spectrum-example.c" />
- * ]|
- * </refsect2>
- *
- * Last reviewed on 2011-03-10 (0.10.29)
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <string.h>
-#include <math.h>
-#include "gstspectrum.h"
-
-GST_DEBUG_CATEGORY_STATIC (gst_spectrum_debug);
-#define GST_CAT_DEFAULT gst_spectrum_debug
-
-/* elementfactory information */
-
-#define ALLOWED_CAPS \
-    "audio/x-raw-int, "                                               \
-    " width = (int) 16, "                                             \
-    " depth = (int) [ 1, 16 ], "                                      \
-    " signed = (boolean) true, "                                      \
-    " endianness = (int) BYTE_ORDER, "                                \
-    " rate = (int) [ 1, MAX ], "                                      \
-    " channels = (int) [ 1, MAX ]; "                                  \
-    "audio/x-raw-int, "                                               \
-    " width = (int) 24, "                                             \
-    " depth = (int) [ 1, 24 ], "                                      \
-    " signed = (boolean) true, "                                      \
-    " endianness = (int) BYTE_ORDER, "                                \
-    " rate = (int) [ 1, MAX ], "                                      \
-    " channels = (int) [ 1, MAX ]; "                                  \
-    "audio/x-raw-int, "                                               \
-    " width = (int) 32, "                                             \
-    " depth = (int) [ 1, 32 ], "                                      \
-    " signed = (boolean) true, "                                      \
-    " endianness = (int) BYTE_ORDER, "                                \
-    " rate = (int) [ 1, MAX ], "                                      \
-    " channels = (int) [ 1, MAX ]; "                                  \
-    "audio/x-raw-float, "                                             \
-    " width = (int) { 32, 64 }, "                                     \
-    " endianness = (int) BYTE_ORDER, "                                \
-    " rate = (int) [ 1, MAX ], "                                      \
-    " channels = (int) [ 1, MAX ]"
-
-/* Spectrum properties */
-#define DEFAULT_MESSAGE			TRUE
-#define DEFAULT_POST_MESSAGES			TRUE
-#define DEFAULT_MESSAGE_MAGNITUDE	TRUE
-#define DEFAULT_MESSAGE_PHASE		FALSE
-#define DEFAULT_INTERVAL		(GST_SECOND / 10)
-#define DEFAULT_BANDS			128
-#define DEFAULT_THRESHOLD		-60
-#define DEFAULT_MULTI_CHANNEL		FALSE
-
-enum
-{
-  PROP_0,
-  PROP_MESSAGE,
-  PROP_POST_MESSAGES,
-  PROP_MESSAGE_MAGNITUDE,
-  PROP_MESSAGE_PHASE,
-  PROP_INTERVAL,
-  PROP_BANDS,
-  PROP_THRESHOLD,
-  PROP_MULTI_CHANNEL
-};
-
-GST_BOILERPLATE (GstSpectrum, gst_spectrum, GstAudioFilter,
-    GST_TYPE_AUDIO_FILTER);
-
-static void gst_spectrum_finalize (GObject * object);
-static void gst_spectrum_set_property (GObject * object, guint prop_id,
-    const GValue * value, GParamSpec * pspec);
-static void gst_spectrum_get_property (GObject * object, guint prop_id,
-    GValue * value, GParamSpec * pspec);
-static gboolean gst_spectrum_start (GstBaseTransform * trans);
-static gboolean gst_spectrum_stop (GstBaseTransform * trans);
-static GstFlowReturn gst_spectrum_transform_ip (GstBaseTransform * trans,
-    GstBuffer * in);
-static gboolean gst_spectrum_setup (GstAudioFilter * base,
-    GstRingBufferSpec * format);
-
-static void
-gst_spectrum_base_init (gpointer g_class)
-{
-  GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-  GstCaps *caps;
-
-  gst_element_class_set_details_simple (element_class, "Spectrum analyzer",
-      "Filter/Analyzer/Audio",
-      "Run an FFT on the audio signal, output spectrum data",
-      "Erik Walthinsen <omega@cse.ogi.edu>, "
-      "Stefan Kost <ensonic@users.sf.net>, "
-      "Sebastian Dröge <sebastian.droege@collabora.co.uk>");
-
-  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_spectrum_class_init (GstSpectrumClass * klass)
-{
-  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
-  GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass);
-  GstAudioFilterClass *filter_class = GST_AUDIO_FILTER_CLASS (klass);
-
-  gobject_class->set_property = gst_spectrum_set_property;
-  gobject_class->get_property = gst_spectrum_get_property;
-  gobject_class->finalize = gst_spectrum_finalize;
-
-  trans_class->start = GST_DEBUG_FUNCPTR (gst_spectrum_start);
-  trans_class->stop = GST_DEBUG_FUNCPTR (gst_spectrum_stop);
-  trans_class->transform_ip = GST_DEBUG_FUNCPTR (gst_spectrum_transform_ip);
-  trans_class->passthrough_on_same_caps = TRUE;
-
-  filter_class->setup = GST_DEBUG_FUNCPTR (gst_spectrum_setup);
-
-  /* FIXME 0.11, remove in favour of post-messages */
-  g_object_class_install_property (gobject_class, PROP_MESSAGE,
-      g_param_spec_boolean ("message", "Message",
-          "Whether to post a 'spectrum' element message on the bus for each "
-          "passed interval (deprecated, use post-messages)", DEFAULT_MESSAGE,
-          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-  /**
-   * GstSpectrum:post-messages
-   *
-   * Post messages on the bus with spectrum information.
-   *
-   * Since: 0.10.17
-   */
-  g_object_class_install_property (gobject_class, PROP_POST_MESSAGES,
-      g_param_spec_boolean ("post-messages", "Post Messages",
-          "Whether to post a 'spectrum' element message on the bus for each "
-          "passed interval", DEFAULT_POST_MESSAGES,
-          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
-  g_object_class_install_property (gobject_class, PROP_MESSAGE_MAGNITUDE,
-      g_param_spec_boolean ("message-magnitude", "Magnitude",
-          "Whether to add a 'magnitude' field to the structure of any "
-          "'spectrum' element messages posted on the bus",
-          DEFAULT_MESSAGE_MAGNITUDE,
-          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
-  g_object_class_install_property (gobject_class, PROP_MESSAGE_PHASE,
-      g_param_spec_boolean ("message-phase", "Phase",
-          "Whether to add a 'phase' field to the structure of any "
-          "'spectrum' element messages posted on the bus",
-          DEFAULT_MESSAGE_PHASE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
-  g_object_class_install_property (gobject_class, PROP_INTERVAL,
-      g_param_spec_uint64 ("interval", "Interval",
-          "Interval of time between message posts (in nanoseconds)",
-          1, G_MAXUINT64, DEFAULT_INTERVAL,
-          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
-  g_object_class_install_property (gobject_class, PROP_BANDS,
-      g_param_spec_uint ("bands", "Bands", "Number of frequency bands",
-          0, G_MAXUINT, DEFAULT_BANDS,
-          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
-  g_object_class_install_property (gobject_class, PROP_THRESHOLD,
-      g_param_spec_int ("threshold", "Threshold",
-          "dB threshold for result. All lower values will be set to this",
-          G_MININT, 0, DEFAULT_THRESHOLD,
-          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
-  /**
-   * GstSpectrum:multi-channel
-   *
-   * Send separate results for each channel
-   *
-   * Since: 0.10.29
-   */
-  g_object_class_install_property (gobject_class, PROP_MULTI_CHANNEL,
-      g_param_spec_boolean ("multi-channel", "Multichannel results",
-          "Send separate results for each channel",
-          DEFAULT_MULTI_CHANNEL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
-  GST_DEBUG_CATEGORY_INIT (gst_spectrum_debug, "spectrum", 0,
-      "audio spectrum analyser element");
-}
-
-static void
-gst_spectrum_init (GstSpectrum * spectrum, GstSpectrumClass * g_class)
-{
-  spectrum->post_messages = DEFAULT_POST_MESSAGES;
-  spectrum->message_magnitude = DEFAULT_MESSAGE_MAGNITUDE;
-  spectrum->message_phase = DEFAULT_MESSAGE_PHASE;
-  spectrum->interval = DEFAULT_INTERVAL;
-  spectrum->bands = DEFAULT_BANDS;
-  spectrum->threshold = DEFAULT_THRESHOLD;
-}
-
-static void
-gst_spectrum_alloc_channel_data (GstSpectrum * spectrum)
-{
-  gint i;
-  GstSpectrumChannel *cd;
-  guint bands = spectrum->bands;
-  guint nfft = 2 * bands - 2;
-
-  g_assert (spectrum->channel_data == NULL);
-
-  spectrum->num_channels = (spectrum->multi_channel) ?
-      GST_AUDIO_FILTER (spectrum)->format.channels : 1;
-
-  GST_DEBUG_OBJECT (spectrum, "allocating data for %d channels",
-      spectrum->num_channels);
-
-  spectrum->channel_data = g_new (GstSpectrumChannel, spectrum->num_channels);
-  for (i = 0; i < spectrum->num_channels; i++) {
-    cd = &spectrum->channel_data[i];
-    cd->fft_ctx = gst_fft_f32_new (nfft, FALSE);
-    cd->input = g_new0 (gfloat, nfft);
-    cd->input_tmp = g_new0 (gfloat, nfft);
-    cd->freqdata = g_new0 (GstFFTF32Complex, bands);
-    cd->spect_magnitude = g_new0 (gfloat, bands);
-    cd->spect_phase = g_new0 (gfloat, bands);
-  }
-}
-
-static void
-gst_spectrum_free_channel_data (GstSpectrum * spectrum)
-{
-  if (spectrum->channel_data) {
-    gint i;
-    GstSpectrumChannel *cd;
-
-    GST_DEBUG_OBJECT (spectrum, "freeing data for %d channels",
-        spectrum->num_channels);
-
-    for (i = 0; i < spectrum->num_channels; i++) {
-      cd = &spectrum->channel_data[i];
-      if (cd->fft_ctx)
-        gst_fft_f32_free (cd->fft_ctx);
-      g_free (cd->input);
-      g_free (cd->input_tmp);
-      g_free (cd->freqdata);
-      g_free (cd->spect_magnitude);
-      g_free (cd->spect_phase);
-    }
-    g_free (spectrum->channel_data);
-    spectrum->channel_data = NULL;
-  }
-}
-
-static void
-gst_spectrum_flush (GstSpectrum * spectrum)
-{
-  spectrum->num_frames = 0;
-  spectrum->num_fft = 0;
-
-  spectrum->accumulated_error = 0;
-}
-
-static void
-gst_spectrum_reset_state (GstSpectrum * spectrum)
-{
-  GST_DEBUG_OBJECT (spectrum, "resetting state");
-
-  gst_spectrum_free_channel_data (spectrum);
-  gst_spectrum_flush (spectrum);
-}
-
-static void
-gst_spectrum_finalize (GObject * object)
-{
-  GstSpectrum *spectrum = GST_SPECTRUM (object);
-
-  gst_spectrum_reset_state (spectrum);
-
-  G_OBJECT_CLASS (parent_class)->finalize (object);
-}
-
-static void
-gst_spectrum_set_property (GObject * object, guint prop_id,
-    const GValue * value, GParamSpec * pspec)
-{
-  GstSpectrum *filter = GST_SPECTRUM (object);
-
-  switch (prop_id) {
-    case PROP_MESSAGE:
-    case PROP_POST_MESSAGES:
-      filter->post_messages = g_value_get_boolean (value);
-      break;
-    case PROP_MESSAGE_MAGNITUDE:
-      filter->message_magnitude = g_value_get_boolean (value);
-      break;
-    case PROP_MESSAGE_PHASE:
-      filter->message_phase = g_value_get_boolean (value);
-      break;
-    case PROP_INTERVAL:{
-      guint64 interval = g_value_get_uint64 (value);
-      if (filter->interval != interval) {
-        GST_BASE_TRANSFORM_LOCK (filter);
-        filter->interval = interval;
-        gst_spectrum_reset_state (filter);
-        GST_BASE_TRANSFORM_UNLOCK (filter);
-      }
-    }
-      break;
-    case PROP_BANDS:{
-      guint bands = g_value_get_uint (value);
-      if (filter->bands != bands) {
-        GST_BASE_TRANSFORM_LOCK (filter);
-        filter->bands = bands;
-        gst_spectrum_reset_state (filter);
-        GST_BASE_TRANSFORM_UNLOCK (filter);
-      }
-    }
-      break;
-    case PROP_THRESHOLD:
-      filter->threshold = g_value_get_int (value);
-      break;
-    case PROP_MULTI_CHANNEL:{
-      gboolean multi_channel = g_value_get_boolean (value);
-      if (filter->multi_channel != multi_channel) {
-        GST_BASE_TRANSFORM_LOCK (filter);
-        filter->multi_channel = multi_channel;
-        gst_spectrum_reset_state (filter);
-        GST_BASE_TRANSFORM_UNLOCK (filter);
-      }
-    }
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-static void
-gst_spectrum_get_property (GObject * object, guint prop_id,
-    GValue * value, GParamSpec * pspec)
-{
-  GstSpectrum *filter = GST_SPECTRUM (object);
-
-  switch (prop_id) {
-    case PROP_MESSAGE:
-    case PROP_POST_MESSAGES:
-      g_value_set_boolean (value, filter->post_messages);
-      break;
-    case PROP_MESSAGE_MAGNITUDE:
-      g_value_set_boolean (value, filter->message_magnitude);
-      break;
-    case PROP_MESSAGE_PHASE:
-      g_value_set_boolean (value, filter->message_phase);
-      break;
-    case PROP_INTERVAL:
-      g_value_set_uint64 (value, filter->interval);
-      break;
-    case PROP_BANDS:
-      g_value_set_uint (value, filter->bands);
-      break;
-    case PROP_THRESHOLD:
-      g_value_set_int (value, filter->threshold);
-      break;
-    case PROP_MULTI_CHANNEL:
-      g_value_set_boolean (value, filter->multi_channel);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-static gboolean
-gst_spectrum_start (GstBaseTransform * trans)
-{
-  GstSpectrum *spectrum = GST_SPECTRUM (trans);
-
-  gst_spectrum_reset_state (spectrum);
-
-  return TRUE;
-}
-
-static gboolean
-gst_spectrum_stop (GstBaseTransform * trans)
-{
-  GstSpectrum *spectrum = GST_SPECTRUM (trans);
-
-  gst_spectrum_reset_state (spectrum);
-
-  return TRUE;
-}
-
-/* mixing data readers */
-
-static void
-input_data_mixed_float (const guint8 * _in, gfloat * out, guint len,
-    guint channels, gfloat max_value, guint op, guint nfft)
-{
-  guint i, j, ip = 0;
-  gfloat v;
-  gfloat *in = (gfloat *) _in;
-
-  for (j = 0; j < len; j++) {
-    v = in[ip++];
-    for (i = 1; i < channels; i++)
-      v += in[ip++];
-    out[op] = v / channels;
-    op = (op + 1) % nfft;
-  }
-}
-
-static void
-input_data_mixed_double (const guint8 * _in, gfloat * out, guint len,
-    guint channels, gfloat max_value, guint op, guint nfft)
-{
-  guint i, j, ip = 0;
-  gfloat v;
-  gdouble *in = (gdouble *) _in;
-
-  for (j = 0; j < len; j++) {
-    v = in[ip++];
-    for (i = 1; i < channels; i++)
-      v += in[ip++];
-    out[op] = v / channels;
-    op = (op + 1) % nfft;
-  }
-}
-
-static void
-input_data_mixed_int32 (const guint8 * _in, gfloat * out, guint len,
-    guint channels, gfloat max_value, guint op, guint nfft)
-{
-  guint i, j, ip = 0;
-  gint32 *in = (gint32 *) _in;
-  gfloat v;
-
-  for (j = 0; j < len; j++) {
-    v = in[ip++] * 2 + 1;
-    for (i = 1; i < channels; i++)
-      v += in[ip++] * 2 + 1;
-    out[op] = v / channels;
-    op = (op + 1) % nfft;
-  }
-}
-
-static void
-input_data_mixed_int32_max (const guint8 * _in, gfloat * out, guint len,
-    guint channels, gfloat max_value, guint op, guint nfft)
-{
-  guint i, j, ip = 0;
-  gint32 *in = (gint32 *) _in;
-  gfloat v;
-
-  for (j = 0; j < len; j++) {
-    v = in[ip++] / max_value;
-    for (i = 1; i < channels; i++)
-      v += in[ip++] / max_value;
-    out[op] = v / channels;
-    op = (op + 1) % nfft;
-  }
-}
-
-static void
-input_data_mixed_int24 (const guint8 * _in, gfloat * out, guint len,
-    guint channels, gfloat max_value, guint op, guint nfft)
-{
-  guint i, j;
-  gfloat v = 0.0;
-
-  for (j = 0; j < len; j++) {
-    for (i = 0; i < channels; i++) {
-#if G_BYTE_ORDER == G_BIG_ENDIAN
-      gint32 value = GST_READ_UINT24_BE (_in);
-#else
-      gint32 value = GST_READ_UINT24_LE (_in);
-#endif
-      if (value & 0x00800000)
-        value |= 0xff000000;
-      v += value * 2 + 1;
-      _in += 3;
-    }
-    out[op] = v / channels;
-    op = (op + 1) % nfft;
-  }
-}
-
-static void
-input_data_mixed_int24_max (const guint8 * _in, gfloat * out, guint len,
-    guint channels, gfloat max_value, guint op, guint nfft)
-{
-  guint i, j;
-  gfloat v = 0.0;
-
-  for (j = 0; j < len; j++) {
-    for (i = 0; i < channels; i++) {
-#if G_BYTE_ORDER == G_BIG_ENDIAN
-      gint32 value = GST_READ_UINT24_BE (_in);
-#else
-      gint32 value = GST_READ_UINT24_LE (_in);
-#endif
-      if (value & 0x00800000)
-        value |= 0xff000000;
-      v += value / max_value;
-      _in += 3;
-    }
-    out[op] = v / channels;
-    op = (op + 1) % nfft;
-  }
-}
-
-static void
-input_data_mixed_int16 (const guint8 * _in, gfloat * out, guint len,
-    guint channels, gfloat max_value, guint op, guint nfft)
-{
-  guint i, j, ip = 0;
-  gint16 *in = (gint16 *) _in;
-  gfloat v;
-
-  for (j = 0; j < len; j++) {
-    v = in[ip++] * 2 + 1;
-    for (i = 1; i < channels; i++)
-      v += in[ip++] * 2 + 1;
-    out[op] = v / channels;
-    op = (op + 1) % nfft;
-  }
-}
-
-static void
-input_data_mixed_int16_max (const guint8 * _in, gfloat * out, guint len,
-    guint channels, gfloat max_value, guint op, guint nfft)
-{
-  guint i, j, ip = 0;
-  gint16 *in = (gint16 *) _in;
-  gfloat v;
-
-  for (j = 0; j < len; j++) {
-    v = in[ip++] / max_value;
-    for (i = 1; i < channels; i++)
-      v += in[ip++] / max_value;
-    out[op] = v / channels;
-    op = (op + 1) % nfft;
-  }
-}
-
-/* non mixing data readers */
-
-static void
-input_data_float (const guint8 * _in, gfloat * out, guint len, guint channels,
-    gfloat max_value, guint op, guint nfft)
-{
-  guint j, ip;
-  gfloat *in = (gfloat *) _in;
-
-  for (j = 0, ip = 0; j < len; j++, ip += channels) {
-    out[op] = in[ip];
-    op = (op + 1) % nfft;
-  }
-}
-
-static void
-input_data_double (const guint8 * _in, gfloat * out, guint len, guint channels,
-    gfloat max_value, guint op, guint nfft)
-{
-  guint j, ip;
-  gdouble *in = (gdouble *) _in;
-
-  for (j = 0, ip = 0; j < len; j++, ip += channels) {
-    out[op] = in[ip];
-    op = (op + 1) % nfft;
-  }
-}
-
-static void
-input_data_int32 (const guint8 * _in, gfloat * out, guint len, guint channels,
-    gfloat max_value, guint op, guint nfft)
-{
-  guint j, ip;
-  gint32 *in = (gint32 *) _in;
-
-  for (j = 0, ip = 0; j < len; j++, ip += channels) {
-    out[op] = in[ip] * 2 + 1;
-    op = (op + 1) % nfft;
-  }
-}
-
-static void
-input_data_int32_max (const guint8 * _in, gfloat * out, guint len,
-    guint channels, gfloat max_value, guint op, guint nfft)
-{
-  guint j, ip;
-  gint32 *in = (gint32 *) _in;
-
-  for (j = 0, ip = 0; j < len; j++, ip += channels) {
-    out[op] = in[ip] / max_value;
-    op = (op + 1) % nfft;
-  }
-}
-
-static void
-input_data_int24 (const guint8 * _in, gfloat * out, guint len, guint channels,
-    gfloat max_value, guint op, guint nfft)
-{
-  guint j;
-
-  for (j = 0; j < len; j++) {
-#if G_BYTE_ORDER == G_BIG_ENDIAN
-    gint32 v = GST_READ_UINT24_BE (_in);
-#else
-    gint32 v = GST_READ_UINT24_LE (_in);
-#endif
-    if (v & 0x00800000)
-      v |= 0xff000000;
-    _in += 3 * channels;
-    out[op] = v * 2 + 1;
-    op = (op + 1) % nfft;
-  }
-}
-
-static void
-input_data_int24_max (const guint8 * _in, gfloat * out, guint len,
-    guint channels, gfloat max_value, guint op, guint nfft)
-{
-  guint j;
-
-  for (j = 0; j < len; j++) {
-#if G_BYTE_ORDER == G_BIG_ENDIAN
-    gint32 v = GST_READ_UINT24_BE (_in);
-#else
-    gint32 v = GST_READ_UINT24_LE (_in);
-#endif
-    if (v & 0x00800000)
-      v |= 0xff000000;
-    _in += 3 * channels;
-    out[op] = v / max_value;
-    op = (op + 1) % nfft;
-  }
-}
-
-static void
-input_data_int16 (const guint8 * _in, gfloat * out, guint len, guint channels,
-    gfloat max_value, guint op, guint nfft)
-{
-  guint j, ip;
-  gint16 *in = (gint16 *) _in;
-
-  for (j = 0, ip = 0; j < len; j++, ip += channels) {
-    out[op] = in[ip] * 2 + 1;
-    op = (op + 1) % nfft;
-  }
-}
-
-static void
-input_data_int16_max (const guint8 * _in, gfloat * out, guint len,
-    guint channels, gfloat max_value, guint op, guint nfft)
-{
-  guint j, ip;
-  gint16 *in = (gint16 *) _in;
-
-  for (j = 0, ip = 0; j < len; j++, ip += channels) {
-    out[op] = in[ip] / max_value;
-    op = (op + 1) % nfft;
-  }
-}
-
-static gboolean
-gst_spectrum_setup (GstAudioFilter * base, GstRingBufferSpec * format)
-{
-  GstSpectrum *spectrum = GST_SPECTRUM (base);
-  guint width = format->width / 8;
-  gboolean is_float = (format->type == GST_BUFTYPE_FLOAT);
-  /* max_value will be 0 when depth is 1,
-   * interpret -1 and 0 as -1 and +1 if that's the case. */
-  guint max_value = (1UL << (format->depth - 1)) - 1;
-  gboolean multi_channel = spectrum->multi_channel;
-  GstSpectrumInputData input_data = NULL;
-
-  if (is_float) {
-    if (width == 4) {
-      input_data = multi_channel ? input_data_float : input_data_mixed_float;
-    } else if (width == 8) {
-      input_data = multi_channel ? input_data_double : input_data_mixed_double;
-    } else {
-      g_assert_not_reached ();
-    }
-  } else {
-    if (width == 4) {
-      if (max_value) {
-        input_data =
-            multi_channel ? input_data_int32_max : input_data_mixed_int32_max;
-      } else {
-        input_data = multi_channel ? input_data_int32 : input_data_mixed_int32;
-      }
-    } else if (width == 3) {
-      if (max_value) {
-        input_data =
-            multi_channel ? input_data_int24_max : input_data_mixed_int24_max;
-      } else {
-        input_data = multi_channel ? input_data_int24 : input_data_mixed_int24;
-      }
-    } else if (width == 2) {
-      if (max_value) {
-        input_data =
-            multi_channel ? input_data_int16_max : input_data_mixed_int16_max;
-      } else {
-        input_data = multi_channel ? input_data_int16 : input_data_mixed_int16;
-      }
-    } else {
-      g_assert_not_reached ();
-    }
-  }
-
-  spectrum->input_data = input_data;
-  gst_spectrum_reset_state (spectrum);
-  return TRUE;
-}
-
-static GValue *
-gst_spectrum_message_add_container (GstStructure * s, GType type,
-    const gchar * name)
-{
-  GValue v = { 0, };
-
-  g_value_init (&v, type);
-  /* will copy-by-value */
-  gst_structure_set_value (s, name, &v);
-  g_value_unset (&v);
-  return (GValue *) gst_structure_get_value (s, name);
-}
-
-static void
-gst_spectrum_message_add_list (GValue * cv, gfloat * data, guint num_values)
-{
-  GValue v = { 0, };
-  guint i;
-
-  g_value_init (&v, G_TYPE_FLOAT);
-  for (i = 0; i < num_values; i++) {
-    g_value_set_float (&v, data[i]);
-    gst_value_list_append_value (cv, &v);       /* copies by value */
-  }
-  g_value_unset (&v);
-}
-
-static void
-gst_spectrum_message_add_array (GValue * cv, gfloat * data, guint num_values)
-{
-  GValue v = { 0, };
-  GValue a = { 0, };
-  guint i;
-
-  g_value_init (&a, GST_TYPE_ARRAY);
-
-  g_value_init (&v, G_TYPE_FLOAT);
-  for (i = 0; i < num_values; i++) {
-    g_value_set_float (&v, data[i]);
-    gst_value_array_append_value (&a, &v);      /* copies by value */
-  }
-  g_value_unset (&v);
-
-  gst_value_array_append_value (cv, &a);        /* copies by value */
-  g_value_unset (&a);
-}
-
-static GstMessage *
-gst_spectrum_message_new (GstSpectrum * spectrum, GstClockTime timestamp,
-    GstClockTime duration)
-{
-  GstBaseTransform *trans = GST_BASE_TRANSFORM_CAST (spectrum);
-  GstSpectrumChannel *cd;
-  GstStructure *s;
-  GValue *mcv = NULL, *pcv = NULL;
-  GstClockTime endtime, running_time, stream_time;
-
-  GST_DEBUG_OBJECT (spectrum, "preparing message, bands =%d ", spectrum->bands);
-
-  running_time = gst_segment_to_running_time (&trans->segment, GST_FORMAT_TIME,
-      timestamp);
-  stream_time = gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME,
-      timestamp);
-  /* endtime is for backwards compatibility */
-  endtime = stream_time + duration;
-
-  s = gst_structure_new ("spectrum",
-      "endtime", GST_TYPE_CLOCK_TIME, endtime,
-      "timestamp", G_TYPE_UINT64, timestamp,
-      "stream-time", G_TYPE_UINT64, stream_time,
-      "running-time", G_TYPE_UINT64, running_time,
-      "duration", G_TYPE_UINT64, duration, NULL);
-
-  if (!spectrum->multi_channel) {
-    cd = &spectrum->channel_data[0];
-
-    if (spectrum->message_magnitude) {
-      /* FIXME 0.11: this should be an array, not a list */
-      mcv = gst_spectrum_message_add_container (s, GST_TYPE_LIST, "magnitude");
-      gst_spectrum_message_add_list (mcv, cd->spect_magnitude, spectrum->bands);
-    }
-    if (spectrum->message_phase) {
-      /* FIXME 0.11: this should be an array, not a list */
-      pcv = gst_spectrum_message_add_container (s, GST_TYPE_LIST, "phase");
-      gst_spectrum_message_add_list (pcv, cd->spect_phase, spectrum->bands);
-    }
-  } else {
-    guint c;
-    guint channels = GST_AUDIO_FILTER (spectrum)->format.channels;
-
-    if (spectrum->message_magnitude) {
-      mcv = gst_spectrum_message_add_container (s, GST_TYPE_ARRAY, "magnitude");
-    }
-    if (spectrum->message_phase) {
-      pcv = gst_spectrum_message_add_container (s, GST_TYPE_ARRAY, "phase");
-    }
-
-    for (c = 0; c < channels; c++) {
-      cd = &spectrum->channel_data[c];
-
-      if (spectrum->message_magnitude) {
-        gst_spectrum_message_add_array (mcv, cd->spect_magnitude,
-            spectrum->bands);
-      }
-      if (spectrum->message_phase) {
-        gst_spectrum_message_add_array (pcv, cd->spect_magnitude,
-            spectrum->bands);
-      }
-    }
-  }
-  return gst_message_new_element (GST_OBJECT (spectrum), s);
-}
-
-static void
-gst_spectrum_run_fft (GstSpectrum * spectrum, GstSpectrumChannel * cd,
-    guint input_pos)
-{
-  guint i;
-  guint bands = spectrum->bands;
-  guint nfft = 2 * bands - 2;
-  gint threshold = spectrum->threshold;
-  gfloat *input = cd->input;
-  gfloat *input_tmp = cd->input_tmp;
-  gfloat *spect_magnitude = cd->spect_magnitude;
-  gfloat *spect_phase = cd->spect_phase;
-  GstFFTF32Complex *freqdata = cd->freqdata;
-  GstFFTF32 *fft_ctx = cd->fft_ctx;
-
-  for (i = 0; i < nfft; i++)
-    input_tmp[i] = input[(input_pos + i) % nfft];
-
-  gst_fft_f32_window (fft_ctx, input_tmp, GST_FFT_WINDOW_HAMMING);
-
-  gst_fft_f32_fft (fft_ctx, input_tmp, freqdata);
-
-  if (spectrum->message_magnitude) {
-    gdouble val;
-    /* Calculate magnitude in db */
-    for (i = 0; i < bands; i++) {
-      val = freqdata[i].r * freqdata[i].r;
-      val += freqdata[i].i * freqdata[i].i;
-      val /= nfft * nfft;
-      val = 10.0 * log10 (val);
-      if (val < threshold)
-        val = threshold;
-      spect_magnitude[i] += val;
-    }
-  }
-
-  if (spectrum->message_phase) {
-    /* Calculate phase */
-    for (i = 0; i < bands; i++)
-      spect_phase[i] += atan2 (freqdata[i].i, freqdata[i].r);
-  }
-}
-
-static void
-gst_spectrum_prepare_message_data (GstSpectrum * spectrum,
-    GstSpectrumChannel * cd)
-{
-  guint i;
-  guint bands = spectrum->bands;
-  guint num_fft = spectrum->num_fft;
-
-  /* Calculate average */
-  if (spectrum->message_magnitude) {
-    gfloat *spect_magnitude = cd->spect_magnitude;
-    for (i = 0; i < bands; i++)
-      spect_magnitude[i] /= num_fft;
-  }
-  if (spectrum->message_phase) {
-    gfloat *spect_phase = cd->spect_phase;
-    for (i = 0; i < bands; i++)
-      spect_phase[i] /= num_fft;
-  }
-}
-
-static void
-gst_spectrum_reset_message_data (GstSpectrum * spectrum,
-    GstSpectrumChannel * cd)
-{
-  guint bands = spectrum->bands;
-  gfloat *spect_magnitude = cd->spect_magnitude;
-  gfloat *spect_phase = cd->spect_phase;
-
-  /* reset spectrum accumulators */
-  memset (spect_magnitude, 0, bands * sizeof (gfloat));
-  memset (spect_phase, 0, bands * sizeof (gfloat));
-}
-
-static GstFlowReturn
-gst_spectrum_transform_ip (GstBaseTransform * trans, GstBuffer * buffer)
-{
-  GstSpectrum *spectrum = GST_SPECTRUM (trans);
-  GstRingBufferSpec *format = &GST_AUDIO_FILTER (spectrum)->format;
-  guint rate = format->rate;
-  guint channels = format->channels;
-  guint output_channels = spectrum->multi_channel ? channels : 1;
-  guint c;
-  guint width = format->width / 8;
-  gfloat max_value = (1UL << (format->depth - 1)) - 1;
-  guint bands = spectrum->bands;
-  guint nfft = 2 * bands - 2;
-  guint input_pos;
-  gfloat *input;
-  const guint8 *data = GST_BUFFER_DATA (buffer);
-  guint size = GST_BUFFER_SIZE (buffer);
-  guint frame_size = width * channels;
-  guint fft_todo, msg_todo, block_size;
-  gboolean have_full_interval;
-  GstSpectrumChannel *cd;
-  GstSpectrumInputData input_data;
-
-  GST_LOG_OBJECT (spectrum, "input size: %d bytes", GST_BUFFER_SIZE (buffer));
-
-  if (GST_BUFFER_IS_DISCONT (buffer)) {
-    GST_DEBUG_OBJECT (spectrum, "Discontinuity detected -- flushing");
-    gst_spectrum_flush (spectrum);
-  }
-
-  /* If we don't have a FFT context yet (or it was reset due to parameter
-   * changes) get one and allocate memory for everything
-   */
-  if (spectrum->channel_data == NULL) {
-    GST_DEBUG_OBJECT (spectrum, "allocating for bands %u", bands);
-
-    gst_spectrum_alloc_channel_data (spectrum);
-
-    /* number of sample frames we process before posting a message
-     * interval is in ns */
-    spectrum->frames_per_interval =
-        gst_util_uint64_scale (spectrum->interval, rate, GST_SECOND);
-    spectrum->frames_todo = spectrum->frames_per_interval;
-    /* rounding error for frames_per_interval in ns,
-     * aggregated it in accumulated_error */
-    spectrum->error_per_interval = (spectrum->interval * rate) % GST_SECOND;
-    if (spectrum->frames_per_interval == 0)
-      spectrum->frames_per_interval = 1;
-
-    GST_INFO_OBJECT (spectrum, "interval %" GST_TIME_FORMAT ", fpi %"
-        G_GUINT64_FORMAT ", error %" GST_TIME_FORMAT,
-        GST_TIME_ARGS (spectrum->interval), spectrum->frames_per_interval,
-        GST_TIME_ARGS (spectrum->error_per_interval));
-
-    spectrum->input_pos = 0;
-
-    gst_spectrum_flush (spectrum);
-  }
-
-  if (spectrum->num_frames == 0)
-    spectrum->message_ts = GST_BUFFER_TIMESTAMP (buffer);
-
-  input_pos = spectrum->input_pos;
-  input_data = spectrum->input_data;
-
-  while (size >= frame_size) {
-    /* run input_data for a chunk of data */
-    fft_todo = nfft - (spectrum->num_frames % nfft);
-    msg_todo = spectrum->frames_todo - spectrum->num_frames;
-    GST_LOG_OBJECT (spectrum,
-        "message frames todo: %u, fft frames todo: %u, input frames %u",
-        msg_todo, fft_todo, (size / frame_size));
-    block_size = msg_todo;
-    if (block_size > (size / frame_size))
-      block_size = (size / frame_size);
-    if (block_size > fft_todo)
-      block_size = fft_todo;
-
-    for (c = 0; c < output_channels; c++) {
-      cd = &spectrum->channel_data[c];
-      input = cd->input;
-      /* Move the current frames into our ringbuffers */
-      input_data (data + c * width, input, block_size, channels, max_value,
-          input_pos, nfft);
-    }
-    data += block_size * frame_size;
-    size -= block_size * frame_size;
-    input_pos = (input_pos + block_size) % nfft;
-    spectrum->num_frames += block_size;
-
-    have_full_interval = (spectrum->num_frames == spectrum->frames_todo);
-
-    GST_LOG_OBJECT (spectrum, "size: %u, do-fft = %d, do-message = %d", size,
-        (spectrum->num_frames % nfft == 0), have_full_interval);
-
-    /* If we have enough frames for an FFT or we have all frames required for
-     * the interval and we haven't run a FFT, then run an FFT */
-    if ((spectrum->num_frames % nfft == 0) ||
-        (have_full_interval && !spectrum->num_fft)) {
-      for (c = 0; c < output_channels; c++) {
-        cd = &spectrum->channel_data[c];
-        gst_spectrum_run_fft (spectrum, cd, input_pos);
-      }
-      spectrum->num_fft++;
-    }
-
-    /* Do we have the FFTs for one interval? */
-    if (have_full_interval) {
-      GST_DEBUG_OBJECT (spectrum, "nfft: %u frames: %" G_GUINT64_FORMAT
-          " fpi: %" G_GUINT64_FORMAT " error: %" GST_TIME_FORMAT, nfft,
-          spectrum->num_frames, spectrum->frames_per_interval,
-          GST_TIME_ARGS (spectrum->accumulated_error));
-
-      spectrum->frames_todo = spectrum->frames_per_interval;
-      if (spectrum->accumulated_error >= GST_SECOND) {
-        spectrum->accumulated_error -= GST_SECOND;
-        spectrum->frames_todo++;
-      }
-      spectrum->accumulated_error += spectrum->error_per_interval;
-
-      if (spectrum->post_messages) {
-        GstMessage *m;
-
-        for (c = 0; c < output_channels; c++) {
-          cd = &spectrum->channel_data[c];
-          gst_spectrum_prepare_message_data (spectrum, cd);
-        }
-
-        m = gst_spectrum_message_new (spectrum, spectrum->message_ts,
-            spectrum->interval);
-
-        gst_element_post_message (GST_ELEMENT (spectrum), m);
-      }
-
-      if (GST_CLOCK_TIME_IS_VALID (spectrum->message_ts))
-        spectrum->message_ts +=
-            gst_util_uint64_scale (spectrum->num_frames, GST_SECOND, rate);
-
-      for (c = 0; c < output_channels; c++) {
-        cd = &spectrum->channel_data[c];
-        gst_spectrum_reset_message_data (spectrum, cd);
-      }
-      spectrum->num_frames = 0;
-      spectrum->num_fft = 0;
-    }
-  }
-
-  spectrum->input_pos = input_pos;
-
-  g_assert (size == 0);
-
-  return GST_FLOW_OK;
-}
-
-static gboolean
-plugin_init (GstPlugin * plugin)
-{
-  return gst_element_register (plugin, "spectrum", GST_RANK_NONE,
-      GST_TYPE_SPECTRUM);
-}
-
-GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
-    GST_VERSION_MINOR,
-    "spectrum",
-    "Run an FFT on the audio signal, output spectrum data",
-    plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)