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gst/audiofx/: Add new audiodynamic element which can act as a compressor or expander. Supported are hard-knee and sof...

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Original commit message from CVS:
reviewed by: Stefan Kost  <ensonic@users.sf.net>
* gst/audiofx/Makefile.am:
* gst/audiofx/audiodynamic.c:
(gst_audio_dynamic_characteristics_get_type),
(gst_audio_dynamic_mode_get_type),
(gst_audio_dynamic_set_process_function),
(gst_audio_dynamic_base_init), (gst_audio_dynamic_class_init),
(gst_audio_dynamic_init), (gst_audio_dynamic_set_property),
(gst_audio_dynamic_get_property), (gst_audio_dynamic_setup),
(gst_audio_dynamic_transform_hard_knee_compressor_int),
(gst_audio_dynamic_transform_hard_knee_compressor_float),
(gst_audio_dynamic_transform_soft_knee_compressor_int),
(gst_audio_dynamic_transform_soft_knee_compressor_float),
(gst_audio_dynamic_transform_hard_knee_expander_int),
(gst_audio_dynamic_transform_hard_knee_expander_float),
(gst_audio_dynamic_transform_soft_knee_expander_int),
(gst_audio_dynamic_transform_soft_knee_expander_float),
(gst_audio_dynamic_transform_ip):
* gst/audiofx/audiodynamic.h:
* gst/audiofx/audiofx.c: (plugin_init):
Add new audiodynamic element which can act as a compressor or
expander. Supported are hard-knee and soft-knee operation modes with
user-specified ratio and threshold.
Attack and release parameters are not yet implemented but will follow.
* docs/plugins/Makefile.am:
* docs/plugins/gst-plugins-good-plugins-docs.sgml:
* docs/plugins/gst-plugins-good-plugins-sections.txt:
* docs/plugins/gst-plugins-good-plugins.args:
* docs/plugins/inspect/plugin-audiofx.xml:
Integrate audiodynamic into the docs.
* tests/check/Makefile.am:
* tests/check/elements/audiodynamic.c: (setup_dynamic),
(cleanup_dynamic), (GST_START_TEST), (dynamic_suite), (main):
Add unit test for audiodynamic.
This commit is contained in:
Sebastian Dröge 2007-03-08 10:02:12 +00:00
parent d5dbe58af2
commit dbd1b8490f
12 changed files with 1344 additions and 3 deletions
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38
ChangeLog
View file

@ -1,3 +1,41 @@
2007-03-08 Sebastian Dröge <slomo@circular-chaos.org>
reviewed by: Stefan Kost <ensonic@users.sf.net>
* gst/audiofx/Makefile.am:
* gst/audiofx/audiodynamic.c:
(gst_audio_dynamic_characteristics_get_type),
(gst_audio_dynamic_mode_get_type),
(gst_audio_dynamic_set_process_function),
(gst_audio_dynamic_base_init), (gst_audio_dynamic_class_init),
(gst_audio_dynamic_init), (gst_audio_dynamic_set_property),
(gst_audio_dynamic_get_property), (gst_audio_dynamic_setup),
(gst_audio_dynamic_transform_hard_knee_compressor_int),
(gst_audio_dynamic_transform_hard_knee_compressor_float),
(gst_audio_dynamic_transform_soft_knee_compressor_int),
(gst_audio_dynamic_transform_soft_knee_compressor_float),
(gst_audio_dynamic_transform_hard_knee_expander_int),
(gst_audio_dynamic_transform_hard_knee_expander_float),
(gst_audio_dynamic_transform_soft_knee_expander_int),
(gst_audio_dynamic_transform_soft_knee_expander_float),
(gst_audio_dynamic_transform_ip):
* gst/audiofx/audiodynamic.h:
* gst/audiofx/audiofx.c: (plugin_init):
Add new audiodynamic element which can act as a compressor or
expander. Supported are hard-knee and soft-knee operation modes with
user-specified ratio and threshold.
Attack and release parameters are not yet implemented but will follow.
* docs/plugins/Makefile.am:
* docs/plugins/gst-plugins-good-plugins-docs.sgml:
* docs/plugins/gst-plugins-good-plugins-sections.txt:
* docs/plugins/gst-plugins-good-plugins.args:
* docs/plugins/inspect/plugin-audiofx.xml:
Integrate audiodynamic into the docs.
* tests/check/Makefile.am:
* tests/check/elements/audiodynamic.c: (setup_dynamic),
(cleanup_dynamic), (GST_START_TEST), (dynamic_suite), (main):
Add unit test for audiodynamic.
2007-03-07 Jan Schmidt <thaytan@mad.scientist.com>
* ext/raw1394/gstdv1394src.c: (gst_dv1394src_start):

1
docs/plugins/Makefile.am
View file

@ -81,6 +81,7 @@ EXTRA_HFILES = \
$(top_srcdir)/gst/audiofx/audiopanorama.h \
$(top_srcdir)/gst/audiofx/audioinvert.h \
$(top_srcdir)/gst/audiofx/audioamplify.h \
$(top_srcdir)/gst/audiofx/audiodynamic.h \
$(top_srcdir)/gst/autodetect/gstautoaudiosink.h \
$(top_srcdir)/gst/autodetect/gstautovideosink.h \
$(top_srcdir)/gst/avi/gstavidemux.h \

1
docs/plugins/gst-plugins-good-plugins-docs.sgml
View file

@ -17,6 +17,7 @@
<xi:include href="xml/element-audiopanorama.xml" />
<xi:include href="xml/element-audioinvert.xml" />
<xi:include href="xml/element-audioamplify.xml" />
<xi:include href="xml/element-audiodynamic.xml" />
<xi:include href="xml/element-autoaudiosink.xml" />
<xi:include href="xml/element-autovideosink.xml" />
<xi:include href="xml/element-avidemux.xml" />

10
docs/plugins/gst-plugins-good-plugins-sections.txt
View file

@ -57,6 +57,16 @@ GST_AUDIO_AMPLIFY
GST_AUDIO_AMPLIFY_CLASS
</SECTION>
<SECTION>
<FILE>element-audiodynamic</FILE>
GstAudioDynamic
<TITLE>audiodynamic</TITLE>
<SUBSECTION Standard>
GstAudioDynamicClass
GST_AUDIO_DYNAMIC
GST_AUDIO_DYNAMIC_CLASS
</SECTION>
<SECTION>
<FILE>element-autoaudiosink</FILE>
GstAutoAudioSink

40
docs/plugins/gst-plugins-good-plugins.args
View file

@ -16668,3 +16668,43 @@
<DEFAULT>Normal Clipping (default)</DEFAULT>
</ARG>
<ARG>
<NAME>GstAudioDynamic::characteristics</NAME>
<TYPE>GstAudioDynamicCharacteristics</TYPE>
<RANGE></RANGE>
<FLAGS>rw</FLAGS>
<NICK>Characteristics</NICK>
<BLURB>Selects whether the ratio should be applied smooth (soft-knee) or hard (hard-knee).</BLURB>
<DEFAULT>Hard Knee (default)</DEFAULT>
</ARG>
<ARG>
<NAME>GstAudioDynamic::mode</NAME>
<TYPE>GstAudioDynamicMode</TYPE>
<RANGE></RANGE>
<FLAGS>rw</FLAGS>
<NICK>Mode</NICK>
<BLURB>Selects whether the filter should work on loud samples (compressor) orquiet samples (expander).</BLURB>
<DEFAULT>Compressor (default)</DEFAULT>
</ARG>
<ARG>
<NAME>GstAudioDynamic::ratio</NAME>
<TYPE>gfloat</TYPE>
<RANGE>[0,inf]</RANGE>
<FLAGS>rw</FLAGS>
<NICK>Ratio</NICK>
<BLURB>Ratio that should be applied.</BLURB>
<DEFAULT>1</DEFAULT>
</ARG>
<ARG>
<NAME>GstAudioDynamic::threshold</NAME>
<TYPE>gfloat</TYPE>
<RANGE>[0,1]</RANGE>
<FLAGS>rw</FLAGS>
<NICK>Threshold</NICK>
<BLURB>Threshold until the filter is activated.</BLURB>
<DEFAULT>0</DEFAULT>
</ARG>

7
docs/plugins/inspect/plugin-audiofx.xml
View file

@ -16,6 +16,13 @@
<description>Amplifies an audio stream by a given factor</description>
<author>Sebastian Dröge &lt;slomo@circular-chaos.org&gt;</author>
</element>
<element>
<name>audiodynamic</name>
<longname>AudioDynamic</longname>
<class>Filter/Effect/Audio</class>
<description>Compressor and Expander</description>
<author>Sebastian Dröge &lt;slomo@circular-chaos.org&gt;</author>
</element>
<element>
<name>audioinvert</name>
<longname>AudioInvert</longname>

7
gst/audiofx/Makefile.am
View file

@ -6,7 +6,8 @@ plugin_LTLIBRARIES = libgstaudiofx.la
libgstaudiofx_la_SOURCES = audiofx.c\
audiopanorama.c \
audioinvert.c \
audioamplify.c
audioamplify.c \
audiodynamic.c
# flags used to compile this plugin
libgstaudiofx_la_CFLAGS = $(GST_CFLAGS) \
@ -23,4 +24,6 @@ libgstaudiofx_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
# headers we need but don't want installed
noinst_HEADERS = audiopanorama.h \
audioinvert.h \
audioamplify.h
audioamplify.h \
audiodynamic.h

711
gst/audiofx/audiodynamic.c Normal file
View file

@ -0,0 +1,711 @@
/*
* GStreamer
* Copyright (C) 2007 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.
*/
/**
* SECTION:element-audiodynamic
* @short_description: Compressor and Expander
*
* <refsect2>
* This element can act as a compressor or expander. A compressor changes the
* amplitude of all samples above a specific threshold with a specific ratio,
* a expander does the same for all samples below a specific threshold. If
* soft-knee mode is selected the ratio is applied smoothly.
* <title>Example launch line</title>
* <para>
* <programlisting>
* gst-launch audiotestsrc wave=saw ! audiodynamic characteristics=soft-knee mode=compressor threshold=0.5 rate=0.5 ! alsasink
* gst-launch filesrc location="melo1.ogg" ! oggdemux ! vorbisdec ! audioconvert ! audiodynamic characteristics=hard-knee mode=expander threshold=0.2 rate=4.0 ! alsasink
* gst-launch audiotestsrc wave=saw ! audioconvert ! audiodynamic ! audioconvert ! alsasink
* </programlisting>
* </para>
* </refsect2>
*/
/* TODO: Implement attack and release parameters */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/base/gstbasetransform.h>
#include <gst/audio/audio.h>
#include <gst/audio/gstaudiofilter.h>
#include <gst/controller/gstcontroller.h>
#include "audiodynamic.h"
#define GST_CAT_DEFAULT gst_audio_dynamic_debug
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
static const GstElementDetails element_details =
GST_ELEMENT_DETAILS ("AudioDynamic",
"Filter/Effect/Audio",
"Compressor and Expander",
"Sebastian Dröge <slomo@circular-chaos.org>");
/* Filter signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
PROP_0,
PROP_CHARACTERISTICS,
PROP_MODE,
PROP_THRESHOLD,
PROP_RATIO
};
#define ALLOWED_CAPS \
"audio/x-raw-int," \
" depth=(int)16," \
" width=(int)16," \
" endianness=(int)BYTE_ORDER," \
" signed=(bool)TRUE," \
" rate=(int)[1,MAX]," \
" channels=(int)[1,MAX]; " \
"audio/x-raw-float," \
" width=(int)32," \
" endianness=(int)BYTE_ORDER," \
" rate=(int)[1,MAX]," \
" channels=(int)[1,MAX]"
#define DEBUG_INIT(bla) \
GST_DEBUG_CATEGORY_INIT (gst_audio_dynamic_debug, "audiodynamic", 0, "audiodynamic element");
GST_BOILERPLATE_FULL (GstAudioDynamic, gst_audio_dynamic, GstAudioFilter,
GST_TYPE_AUDIO_FILTER, DEBUG_INIT);
static void gst_audio_dynamic_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_audio_dynamic_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static gboolean gst_audio_dynamic_setup (GstAudioFilter * filter,
GstRingBufferSpec * format);
static GstFlowReturn gst_audio_dynamic_transform_ip (GstBaseTransform * base,
GstBuffer * buf);
static void
gst_audio_dynamic_transform_hard_knee_compressor_int (GstAudioDynamic * filter,
gint16 * data, guint num_samples);
static void
gst_audio_dynamic_transform_hard_knee_compressor_float (GstAudioDynamic *
filter, gfloat * data, guint num_samples);
static void
gst_audio_dynamic_transform_soft_knee_compressor_int (GstAudioDynamic * filter,
gint16 * data, guint num_samples);
static void
gst_audio_dynamic_transform_soft_knee_compressor_float (GstAudioDynamic *
filter, gfloat * data, guint num_samples);
static void gst_audio_dynamic_transform_hard_knee_expander_int (GstAudioDynamic
* filter, gint16 * data, guint num_samples);
static void
gst_audio_dynamic_transform_hard_knee_expander_float (GstAudioDynamic * filter,
gfloat * data, guint num_samples);
static void gst_audio_dynamic_transform_soft_knee_expander_int (GstAudioDynamic
* filter, gint16 * data, guint num_samples);
static void
gst_audio_dynamic_transform_soft_knee_expander_float (GstAudioDynamic * filter,
gfloat * data, guint num_samples);
static GstAudioDynamicProcessFunc process_functions[] = {
(GstAudioDynamicProcessFunc)
gst_audio_dynamic_transform_hard_knee_compressor_int,
(GstAudioDynamicProcessFunc)
gst_audio_dynamic_transform_hard_knee_compressor_float,
(GstAudioDynamicProcessFunc)
gst_audio_dynamic_transform_soft_knee_compressor_int,
(GstAudioDynamicProcessFunc)
gst_audio_dynamic_transform_soft_knee_compressor_float,
(GstAudioDynamicProcessFunc)
gst_audio_dynamic_transform_hard_knee_expander_int,
(GstAudioDynamicProcessFunc)
gst_audio_dynamic_transform_hard_knee_expander_float,
(GstAudioDynamicProcessFunc)
gst_audio_dynamic_transform_soft_knee_expander_int,
(GstAudioDynamicProcessFunc)
gst_audio_dynamic_transform_soft_knee_expander_float
};
enum
{
CHARACTERISTICS_HARD_KNEE = 0,
CHARACTERISTICS_SOFT_KNEE
};
#define GST_TYPE_AUDIO_DYNAMIC_CHARACTERISTICS (gst_audio_dynamic_characteristics_get_type ())
static GType
gst_audio_dynamic_characteristics_get_type (void)
{
static GType gtype = 0;
if (gtype == 0) {
static const GEnumValue values[] = {
{CHARACTERISTICS_HARD_KNEE, "Hard Knee (default)",
"hard-knee"},
{CHARACTERISTICS_SOFT_KNEE, "Soft Knee (smooth)",
"soft-knee"},
{0, NULL, NULL}
};
gtype = g_enum_register_static ("GstAudioDynamicCharacteristics", values);
}
return gtype;
}
enum
{
MODE_COMPRESSOR = 0,
MODE_EXPANDER
};
#define GST_TYPE_AUDIO_DYNAMIC_MODE (gst_audio_dynamic_mode_get_type ())
static GType
gst_audio_dynamic_mode_get_type (void)
{
static GType gtype = 0;
if (gtype == 0) {
static const GEnumValue values[] = {
{MODE_COMPRESSOR, "Compressor (default)",
"compressor"},
{MODE_EXPANDER, "Expander", "expander"},
{0, NULL, NULL}
};
gtype = g_enum_register_static ("GstAudioDynamicMode", values);
}
return gtype;
}
static gboolean
gst_audio_dynamic_set_process_function (GstAudioDynamic * filter)
{
gint func_index;
func_index = (filter->mode == MODE_COMPRESSOR) ? 0 : 4;
func_index += (filter->characteristics == CHARACTERISTICS_HARD_KNEE) ? 0 : 2;
func_index += (!filter->is_float) ? 0 : 1;
if (func_index >= 0 && func_index < 8) {
filter->process = process_functions[func_index];
return TRUE;
}
return FALSE;
}
/* GObject vmethod implementations */
static void
gst_audio_dynamic_base_init (gpointer klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstCaps *caps;
gst_element_class_set_details (element_class, &element_details);
caps = gst_caps_from_string (ALLOWED_CAPS);
gst_audio_filter_class_add_pad_templates (GST_AUDIO_FILTER_CLASS (klass),
caps);
gst_caps_unref (caps);
}
static void
gst_audio_dynamic_class_init (GstAudioDynamicClass * klass)
{
GObjectClass *gobject_class;
gobject_class = (GObjectClass *) klass;
gobject_class->set_property = gst_audio_dynamic_set_property;
gobject_class->get_property = gst_audio_dynamic_get_property;
g_object_class_install_property (gobject_class, PROP_CHARACTERISTICS,
g_param_spec_enum ("characteristics", "Characteristics",
"Selects whether the ratio should be applied smooth (soft-knee) "
"or hard (hard-knee).",
GST_TYPE_AUDIO_DYNAMIC_CHARACTERISTICS, CHARACTERISTICS_HARD_KNEE,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, PROP_MODE,
g_param_spec_enum ("mode", "Mode",
"Selects whether the filter should work on loud samples (compressor) or"
"quiet samples (expander).",
GST_TYPE_AUDIO_DYNAMIC_MODE, MODE_COMPRESSOR, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, PROP_THRESHOLD,
g_param_spec_float ("threshold", "Threshold",
"Threshold until the filter is activated", 0.0, 1.0,
0.0, G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
g_object_class_install_property (gobject_class, PROP_RATIO,
g_param_spec_float ("ratio", "Ratio",
"Ratio that should be applied", 0.0, G_MAXDOUBLE,
1.0, G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
GST_AUDIO_FILTER_CLASS (klass)->setup =
GST_DEBUG_FUNCPTR (gst_audio_dynamic_setup);
GST_BASE_TRANSFORM_CLASS (klass)->transform_ip =
GST_DEBUG_FUNCPTR (gst_audio_dynamic_transform_ip);
}
static void
gst_audio_dynamic_init (GstAudioDynamic * filter, GstAudioDynamicClass * klass)
{
filter->ratio = 1.0;
filter->threshold = 0.0;
filter->characteristics = CHARACTERISTICS_HARD_KNEE;
filter->mode = MODE_COMPRESSOR;
filter->width = 0;
filter->is_float = FALSE;
gst_base_transform_set_in_place (GST_BASE_TRANSFORM (filter), TRUE);
}
static void
gst_audio_dynamic_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstAudioDynamic *filter = GST_AUDIO_DYNAMIC (object);
switch (prop_id) {
case PROP_CHARACTERISTICS:
filter->characteristics = g_value_get_enum (value);
gst_audio_dynamic_set_process_function (filter);
break;
case PROP_MODE:
filter->mode = g_value_get_enum (value);
gst_audio_dynamic_set_process_function (filter);
break;
case PROP_THRESHOLD:
filter->threshold = g_value_get_float (value);
break;
case PROP_RATIO:
filter->ratio = g_value_get_float (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_audio_dynamic_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstAudioDynamic *filter = GST_AUDIO_DYNAMIC (object);
switch (prop_id) {
case PROP_CHARACTERISTICS:
g_value_set_enum (value, filter->characteristics);
break;
case PROP_MODE:
g_value_set_enum (value, filter->mode);
break;
case PROP_THRESHOLD:
g_value_set_float (value, filter->threshold);
break;
case PROP_RATIO:
g_value_set_float (value, filter->ratio);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/* GstAudioFilter vmethod implementations */
static gboolean
gst_audio_dynamic_setup (GstAudioFilter * base, GstRingBufferSpec * format)
{
GstAudioDynamic *filter = GST_AUDIO_DYNAMIC (base);
gboolean ret = TRUE;
filter->width = format->width / 8;
filter->is_float = (format->type == GST_BUFTYPE_FLOAT) ? TRUE : FALSE;
ret = gst_audio_dynamic_set_process_function (filter);
return ret;
}
static void
gst_audio_dynamic_transform_hard_knee_compressor_int (GstAudioDynamic * filter,
gint16 * data, guint num_samples)
{
glong val;
glong thr_p = filter->threshold * G_MAXINT16;
glong thr_n = filter->threshold * G_MININT16;
/* Nothing to do for us if ratio is 1.0 or if the threshold
* equals 1.0. */
if (filter->threshold == 1.0 || filter->ratio == 1.0)
return;
for (; num_samples; num_samples--) {
val = *data;
if (val > thr_p) {
val = thr_p + (val - thr_p) * filter->ratio;
} else if (val < thr_n) {
val = thr_n + (val - thr_n) * filter->ratio;
}
*data++ = (gint16) CLAMP (val, G_MININT16, G_MAXINT16);
}
}
static void
gst_audio_dynamic_transform_hard_knee_compressor_float (GstAudioDynamic *
filter, gfloat * data, guint num_samples)
{
gdouble val, threshold = filter->threshold;
/* Nothing to do for us if ratio == 1.0.
* As float values can be above 1.0 we have to do something
* if threshold is greater than 1.0. */
if (filter->ratio == 1.0)
return;
for (; num_samples; num_samples--) {
val = *data;
if (val > threshold) {
val = threshold + (val - threshold) * filter->ratio;
} else if (val < -threshold) {
val = -threshold + (val + threshold) * filter->ratio;
}
*data++ = (gfloat) val;
}
}
static void
gst_audio_dynamic_transform_soft_knee_compressor_int (GstAudioDynamic * filter,
gint16 * data, guint num_samples)
{
glong val;
glong thr_p = filter->threshold * G_MAXINT16;
glong thr_n = filter->threshold * G_MININT16;
gdouble a_p, b_p, c_p;
gdouble a_n, b_n, c_n;
/* Nothing to do for us if ratio is 1.0 or if the threshold
* equals 1.0. */
if (filter->threshold == 1.0 || filter->ratio == 1.0)
return;
/* We build a 2nd degree polynomial here for
* values greater than threshold or small than
* -threshold with:
* f(t) = t, f'(t) = 1, f'(m) = r
* =>
* a = (1-r)/(2*(t-m))
* b = (r*t - m)/(t-m)
* c = t * (1 - b - a*t)
* f(x) = ax^2 + bx + c
*/
/* shouldn't happen because this would only be the case
* for threshold == 1.0 which we catch above */
g_assert (thr_p - G_MAXINT16 != 0);
g_assert (thr_n - G_MININT != 0);
a_p = (1 - filter->ratio) / (2 * (thr_p - G_MAXINT16));
b_p = (filter->ratio * thr_p - G_MAXINT16) / (thr_p - G_MAXINT16);
c_p = thr_p * (1 - b_p - a_p * thr_p);
a_n = (1 - filter->ratio) / (2 * (thr_n - G_MININT16));
b_n = (filter->ratio * thr_n - G_MININT16) / (thr_n - G_MININT16);
c_n = thr_n * (1 - b_n - a_n * thr_n);
for (; num_samples; num_samples--) {
val = *data;
if (val > thr_p) {
val = a_p * val * val + b_p * val + c_p;
} else if (val < thr_n) {
val = a_n * val * val + b_n * val + c_n;
}
*data++ = (gint16) CLAMP (val, G_MININT16, G_MAXINT16);
}
}
static void
gst_audio_dynamic_transform_soft_knee_compressor_float (GstAudioDynamic *
filter, gfloat * data, guint num_samples)
{
gdouble val;
gdouble threshold = filter->threshold;
gdouble a_p, b_p, c_p;
gdouble a_n, b_n, c_n;
/* Nothing to do for us if ratio == 1.0.
* As float values can be above 1.0 we have to do something
* if threshold is greater than 1.0. */
if (filter->ratio == 1.0)
return;
/* We build a 2nd degree polynomial here for
* values greater than threshold or small than
* -threshold with:
* f(t) = t, f'(t) = 1, f'(m) = r
* =>
* a = (1-r)/(2*(t-m))
* b = (r*t - m)/(t-m)
* c = t * (1 - b - a*t)
* f(x) = ax^2 + bx + c
*/
/* FIXME: If treshold is the same as the maximum
* we need to raise it a bit to prevent
* division by zero. */
if (threshold == 1.0)
threshold = 1.0 + 0.00001;
a_p = (1.0 - filter->ratio) / (2.0 * (threshold - 1.0));
b_p = (filter->ratio * threshold - 1.0) / (threshold - 1.0);
c_p = threshold * (1.0 - b_p - a_p * threshold);
a_n = (1.0 - filter->ratio) / (2.0 * (-threshold + 1.0));
b_n = (-filter->ratio * threshold + 1.0) / (-threshold + 1.0);
c_n = -threshold * (1.0 - b_n + a_n * threshold);
for (; num_samples; num_samples--) {
val = *data;
if (val > 1.0) {
val = 1.0 + (val - 1.0) * filter->ratio;
} else if (val > threshold) {
val = a_p * val * val + b_p * val + c_p;
} else if (val < -1.0) {
val = -1.0 + (val + 1.0) * filter->ratio;
} else if (val < -threshold) {
val = a_n * val * val + b_n * val + c_n;
}
*data++ = (gfloat) val;
}
}
static void
gst_audio_dynamic_transform_hard_knee_expander_int (GstAudioDynamic * filter,
gint16 * data, guint num_samples)
{
glong val;
glong thr_p = filter->threshold * G_MAXINT16;
glong thr_n = filter->threshold * G_MININT16;
gdouble zero_p, zero_n;
/* Nothing to do for us here if threshold equals 0.0
* or ratio equals 1.0 */
if (filter->threshold == 0.0 || filter->ratio == 1.0)
return;
/* zero crossing of our function */
if (filter->ratio != 0.0) {
zero_p = thr_p - thr_p / filter->ratio;
zero_n = thr_n - thr_n / filter->ratio;
} else {
zero_p = zero_n = 0.0;
}
if (zero_p < 0.0)
zero_p = 0.0;
if (zero_n > 0.0)
zero_n = 0.0;
for (; num_samples; num_samples--) {
val = *data;
if (val < thr_p && val > zero_p) {
val = filter->ratio * val + thr_p * (1 - filter->ratio);
} else if ((val <= zero_p && val > 0) || (val >= zero_n && val < 0)) {
val = 0;
} else if (val > thr_n && val < zero_n) {
val = filter->ratio * val + thr_n * (1 - filter->ratio);
}
*data++ = (gint16) CLAMP (val, G_MININT16, G_MAXINT16);
}
}
static void
gst_audio_dynamic_transform_hard_knee_expander_float (GstAudioDynamic * filter,
gfloat * data, guint num_samples)
{
gdouble val, threshold = filter->threshold, zero;
/* Nothing to do for us here if threshold equals 0.0
* or ratio equals 1.0 */
if (filter->threshold == 0.0 || filter->ratio == 1.0)
return;
/* zero crossing of our function */
if (filter->ratio != 0.0)
zero = threshold - threshold / filter->ratio;
else
zero = 0.0;
if (zero < 0.0)
zero = 0.0;
for (; num_samples; num_samples--) {
val = *data;
if (val < threshold && val > zero) {
val = filter->ratio * val + threshold * (1.0 - filter->ratio);
} else if ((val <= zero && val > 0.0) || (val >= -zero && val < 0.0)) {
val = 0.0;
} else if (val > -threshold && val < -zero) {
val = filter->ratio * val - threshold * (1.0 - filter->ratio);
}
*data++ = (gfloat) val;
}
}
static void
gst_audio_dynamic_transform_soft_knee_expander_int (GstAudioDynamic * filter,
gint16 * data, guint num_samples)
{
glong val;
glong thr_p = filter->threshold * G_MAXINT16;
glong thr_n = filter->threshold * G_MININT16;
gdouble zero_p, zero_n;
gdouble a_p, b_p, c_p;
gdouble a_n, b_n, c_n;
/* Nothing to do for us here if threshold equals 0.0
* or ratio equals 1.0 */
if (filter->threshold == 0.0 || filter->ratio == 1.0)
return;
/* zero crossing of our function */
zero_p = (thr_p * (filter->ratio - 1.0)) / (1.0 + filter->ratio);
zero_n = (thr_n * (filter->ratio - 1.0)) / (1.0 + filter->ratio);
if (zero_p < 0.0)
zero_p = 0.0;
if (zero_n > 0.0)
zero_n = 0.0;
/* shouldn't happen as this would only happen
* with threshold == 0.0 */
g_assert (thr_p != 0);
g_assert (thr_n != 0);
/* We build a 2n degree polynomial here for values between
* 0 and threshold or 0 and -threshold with:
* f(t) = t, f'(t) = 1, f(z) = 0, f'(z) = r
* z between 0 and t
* =>
* a = (1 - r^2) / (4 * t)
* b = (1 + r^2) / 2
* c = t * (1.0 - b - a*t)
* f(x) = ax^2 + bx + c */
a_p = (1.0 - filter->ratio * filter->ratio) / (4.0 * thr_p);
b_p = (1.0 + filter->ratio * filter->ratio) / 2.0;
c_p = thr_p * (1.0 - b_p - a_p * thr_p);
a_n = (1.0 - filter->ratio * filter->ratio) / (4.0 * thr_n);
b_n = (1.0 + filter->ratio * filter->ratio) / 2.0;
c_n = thr_n * (1.0 - b_n - a_n * thr_n);
for (; num_samples; num_samples--) {
val = *data;
if (val < thr_p && val > zero_p) {
val = a_p * val * val + b_p * val + c_p;
} else if ((val <= zero_p && val > 0) || (val >= zero_n && val < 0)) {
val = 0;
} else if (val > thr_n && val < zero_n) {
val = a_n * val * val + b_n * val + c_n;
}
*data++ = (gint16) CLAMP (val, G_MININT16, G_MAXINT16);
}
}
static void
gst_audio_dynamic_transform_soft_knee_expander_float (GstAudioDynamic * filter,
gfloat * data, guint num_samples)
{
gdouble val;
gdouble threshold = filter->threshold;
gdouble zero;
gdouble a_p, b_p, c_p;
gdouble a_n, b_n, c_n;
/* Nothing to do for us here if threshold equals 0.0
* or ratio equals 1.0 */
if (filter->threshold == 0.0 || filter->ratio == 1.0)
return;
/* zero crossing of our function */
zero = (threshold * (filter->ratio - 1.0)) / (1.0 + filter->ratio);
if (zero < 0.0)
zero = 0.0;
/* shouldn't happen as this only happens with
* threshold == 0.0 */
g_assert (threshold != 0.0);
/* We build a 2n degree polynomial here for values between
* 0 and threshold or 0 and -threshold with:
* f(t) = t, f'(t) = 1, f(z) = 0, f'(z) = r
* z between 0 and t
* =>
* a = (1 - r^2) / (4 * t)
* b = (1 + r^2) / 2
* c = t * (1.0 - b - a*t)
* f(x) = ax^2 + bx + c */
a_p = (1.0 - filter->ratio * filter->ratio) / (4.0 * threshold);
b_p = (1.0 + filter->ratio * filter->ratio) / 2.0;
c_p = threshold * (1.0 - b_p - a_p * threshold);
a_n = (1.0 - filter->ratio * filter->ratio) / (-4.0 * threshold);
b_n = (1.0 + filter->ratio * filter->ratio) / 2.0;
c_n = -threshold * (1.0 - b_n + a_n * threshold);
for (; num_samples; num_samples--) {
val = *data;
if (val < threshold && val > zero) {
val = a_p * val * val + b_p * val + c_p;
} else if ((val <= zero && val > 0.0) || (val >= -zero && val < 0.0)) {
val = 0.0;
} else if (val > -threshold && val < -zero) {
val = a_n * val * val + b_n * val + c_n;
}
*data++ = (gfloat) val;
}
}
/* GstBaseTransform vmethod implementations */
static GstFlowReturn
gst_audio_dynamic_transform_ip (GstBaseTransform * base, GstBuffer * buf)
{
GstAudioDynamic *filter = GST_AUDIO_DYNAMIC (base);
guint num_samples = GST_BUFFER_SIZE (buf) / filter->width;
if (!gst_buffer_is_writable (buf))
return GST_FLOW_OK;
filter->process (filter, GST_BUFFER_DATA (buf), num_samples);
return GST_FLOW_OK;
}

67
gst/audiofx/audiodynamic.h Normal file
View file

@ -0,0 +1,67 @@
/*
* GStreamer
* Copyright (C) 2007 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_AUDIO_DYNAMIC_H__
#define __GST_AUDIO_DYNAMIC_H__
#include <gst/gst.h>
#include <gst/base/gstbasetransform.h>
#include <gst/audio/audio.h>
#include <gst/audio/gstaudiofilter.h>
G_BEGIN_DECLS
#define GST_TYPE_AUDIO_DYNAMIC (gst_audio_dynamic_get_type())
#define GST_AUDIO_DYNAMIC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_DYNAMIC,GstAudioDynamic))
#define GST_IS_AUDIO_DYNAMIC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_DYNAMIC))
#define GST_AUDIO_DYNAMIC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_AUDIO_DYNAMIC,GstAudioDynamicClass))
#define GST_IS_AUDIO_DYNAMIC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_AUDIO_DYNAMIC))
#define GST_AUDIO_DYNAMIC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AUDIO_DYNAMIC,GstAudioDynamicClass))
typedef struct _GstAudioDynamic GstAudioDynamic;
typedef struct _GstAudioDynamicClass GstAudioDynamicClass;
typedef void (*GstAudioDynamicProcessFunc) (GstAudioDynamic *, guint8 *, guint);
struct _GstAudioDynamic
{
GstAudioFilter audiofilter;
gfloat degree;
/* < private > */
GstAudioDynamicProcessFunc process;
gint width;
gboolean is_float;
gint characteristics;
gint mode;
gfloat threshold;
gfloat ratio;
};
struct _GstAudioDynamicClass
{
GstAudioFilterClass parent;
};
GType gst_audio_dynamic_get_type (void);
G_END_DECLS
#endif /* __GST_AUDIO_DYNAMIC_H__ */

5
gst/audiofx/audiofx.c
View file

@ -28,6 +28,7 @@
#include "audiopanorama.h"
#include "audioinvert.h"
#include "audioamplify.h"
#include "audiodynamic.h"
/* entry point to initialize the plug-in
* initialize the plug-in itself
@ -45,7 +46,9 @@ plugin_init (GstPlugin * plugin)
gst_element_register (plugin, "audioinvert", GST_RANK_NONE,
GST_TYPE_AUDIO_INVERT) &&
gst_element_register (plugin, "audioamplify", GST_RANK_NONE,
GST_TYPE_AUDIO_AMPLIFY));
GST_TYPE_AUDIO_AMPLIFY) &&
gst_element_register (plugin, "audiodynamic", GST_RANK_NONE,
GST_TYPE_AUDIO_DYNAMIC));
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,

1
tests/check/Makefile.am
View file

@ -40,6 +40,7 @@ check_PROGRAMS = \
elements/audiopanorama \
elements/audioinvert \
elements/audioamplify \
elements/audiodynamic \
elements/avimux \
elements/id3demux \
elements/level \

459
tests/check/elements/audiodynamic.c Normal file
View file

@ -0,0 +1,459 @@
/* GStreamer
*
* unit test for audiodynamic
*
* Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>
*
* Greatly based on the audiopanorama unit test
* Copyright (C) 2006 Stefan Kost <ensonic@users.sf.net>
*
* 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.
*/
#include <unistd.h>
#include <gst/base/gstbasetransform.h>
#include <gst/check/gstcheck.h>
gboolean have_eos = FALSE;
/* For ease of programming we use globals to keep refs for our floating
* src and sink pads we create; otherwise we always have to do get_pad,
* get_peer, and then remove references in every test function */
GstPad *mysrcpad, *mysinkpad;
#define DYNAMIC_CAPS_STRING \
"audio/x-raw-int, " \
"channels = (int) 1, " \
"rate = (int) 44100, " \
"endianness = (int) BYTE_ORDER, " \
"width = (int) 16, " \
"depth = (int) 16, " \
"signed = (bool) TRUE"
static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"channels = (int) 1, "
"rate = (int) [ 1, MAX ], "
"endianness = (int) BYTE_ORDER, "
"width = (int) 16, " "depth = (int) 16, " "signed = (bool) TRUE")
);
static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"channels = (int) 1, "
"rate = (int) [ 1, MAX ], "
"endianness = (int) BYTE_ORDER, "
"width = (int) 16, " "depth = (int) 16, " "signed = (bool) TRUE")
);
GstElement *
setup_dynamic ()
{
GstElement *dynamic;
GST_DEBUG ("setup_dynamic");
dynamic = gst_check_setup_element ("audiodynamic");
mysrcpad = gst_check_setup_src_pad (dynamic, &srctemplate, NULL);
mysinkpad = gst_check_setup_sink_pad (dynamic, &sinktemplate, NULL);
gst_pad_set_active (mysrcpad, TRUE);
gst_pad_set_active (mysinkpad, TRUE);
return dynamic;
}
void
cleanup_dynamic (GstElement * dynamic)
{
GST_DEBUG ("cleanup_dynamic");
g_list_foreach (buffers, (GFunc) gst_mini_object_unref, NULL);
g_list_free (buffers);
buffers = NULL;
gst_pad_set_active (mysrcpad, FALSE);
gst_pad_set_active (mysinkpad, FALSE);
gst_check_teardown_src_pad (dynamic);
gst_check_teardown_sink_pad (dynamic);
gst_check_teardown_element (dynamic);
}
GST_START_TEST (test_passthrough)
{
GstElement *dynamic;
GstBuffer *inbuffer, *outbuffer;
GstCaps *caps;
gint16 in[6] = { 24576, -16384, 256, -128, 0, -24576 };
gint16 *res;
dynamic = setup_dynamic ();
fail_unless (gst_element_set_state (dynamic,
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
"could not set to playing");
inbuffer = gst_buffer_new_and_alloc (12);
memcpy (GST_BUFFER_DATA (inbuffer), in, 12);
fail_unless (memcmp (GST_BUFFER_DATA (inbuffer), in, 12) == 0);
caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
gst_buffer_set_caps (inbuffer, caps);
gst_caps_unref (caps);
ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
/* pushing gives away my reference ... */
fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
/* ... but it ends up being collected on the global buffer list */
fail_unless_equals_int (g_list_length (buffers), 1);
fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);
res = (gint16 *) GST_BUFFER_DATA (outbuffer);
GST_INFO
("expected %+5ld %+5ld %+5ld %+5ld %+5ld %+5ld real %+5ld %+5ld %+5ld %+5ld %+5ld %+5ld",
in[0], in[1], in[2], in[3], in[4], in[5], res[0], res[1], res[2], res[3],
res[4], res[5]);
fail_unless (memcmp (GST_BUFFER_DATA (outbuffer), in, 12) == 0);
/* cleanup */
cleanup_dynamic (dynamic);
}
GST_END_TEST;
GST_START_TEST (test_compress_hard_50_50)
{
GstElement *dynamic;
GstBuffer *inbuffer, *outbuffer;
GstCaps *caps;
gint16 in[8] = { -30000, 24576, -16384, 256, -128, 0, -24576, 30000 };
gint16 *res;
dynamic = setup_dynamic ();
g_object_set (G_OBJECT (dynamic), "mode", 0, NULL);
g_object_set (G_OBJECT (dynamic), "characteristics", 0, NULL);
g_object_set (G_OBJECT (dynamic), "ratio", 0.5, NULL);
g_object_set (G_OBJECT (dynamic), "threshold", 0.5, NULL);
fail_unless (gst_element_set_state (dynamic,
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
"could not set to playing");
inbuffer = gst_buffer_new_and_alloc (16);
memcpy (GST_BUFFER_DATA (inbuffer), in, 16);
fail_unless (memcmp (GST_BUFFER_DATA (inbuffer), in, 16) == 0);
caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
gst_buffer_set_caps (inbuffer, caps);
gst_caps_unref (caps);
ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
/* pushing gives away my reference ... */
fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
/* ... and puts a new buffer on the global list */
fail_unless_equals_int (g_list_length (buffers), 1);
fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);
res = (gint16 *) GST_BUFFER_DATA (outbuffer);
fail_unless (res[0] > in[0]);
fail_unless (res[1] < in[1]);
fail_unless (res[2] == in[2]);
fail_unless (res[3] == in[3]);
fail_unless (res[4] == in[4]);
fail_unless (res[5] == in[5]);
fail_unless (res[6] > in[6]);
fail_unless (res[7] < in[7]);
/* cleanup */
cleanup_dynamic (dynamic);
}
GST_END_TEST;
GST_START_TEST (test_compress_soft_50_50)
{
GstElement *dynamic;
GstBuffer *inbuffer, *outbuffer;
GstCaps *caps;
gint16 in[8] = { -30000, 24576, -16384, 256, -128, 0, -24576, 30000 };
gint16 *res;
dynamic = setup_dynamic ();
g_object_set (G_OBJECT (dynamic), "mode", 0, NULL);
g_object_set (G_OBJECT (dynamic), "characteristics", 1, NULL);
g_object_set (G_OBJECT (dynamic), "ratio", 0.5, NULL);
g_object_set (G_OBJECT (dynamic), "threshold", 0.5, NULL);
fail_unless (gst_element_set_state (dynamic,
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
"could not set to playing");
inbuffer = gst_buffer_new_and_alloc (16);
memcpy (GST_BUFFER_DATA (inbuffer), in, 16);
fail_unless (memcmp (GST_BUFFER_DATA (inbuffer), in, 16) == 0);
caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
gst_buffer_set_caps (inbuffer, caps);
gst_caps_unref (caps);
ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
/* pushing gives away my reference ... */
fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
/* ... and puts a new buffer on the global list */
fail_unless_equals_int (g_list_length (buffers), 1);
fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);
res = (gint16 *) GST_BUFFER_DATA (outbuffer);
fail_unless (res[0] > in[0]);
fail_unless (res[1] < in[1]);
fail_unless (res[2] == in[2]);
fail_unless (res[3] == in[3]);
fail_unless (res[4] == in[4]);
fail_unless (res[5] == in[5]);
fail_unless (res[6] > in[6]);
fail_unless (res[7] < in[7]);
/* cleanup */
cleanup_dynamic (dynamic);
}
GST_END_TEST;
GST_START_TEST (test_compress_hard_100_50)
{
GstElement *dynamic;
GstBuffer *inbuffer, *outbuffer;
GstCaps *caps;
gint16 in[8] = { -30000, 24576, -16384, 256, -128, 0, -24576, 30000 };
gint16 *res;
dynamic = setup_dynamic ();
g_object_set (G_OBJECT (dynamic), "mode", 0, NULL);
g_object_set (G_OBJECT (dynamic), "characteristics", 0, NULL);
g_object_set (G_OBJECT (dynamic), "ratio", 0.5, NULL);
g_object_set (G_OBJECT (dynamic), "threshold", 1.0, NULL);
fail_unless (gst_element_set_state (dynamic,
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
"could not set to playing");
inbuffer = gst_buffer_new_and_alloc (16);
memcpy (GST_BUFFER_DATA (inbuffer), in, 16);
fail_unless (memcmp (GST_BUFFER_DATA (inbuffer), in, 16) == 0);
caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
gst_buffer_set_caps (inbuffer, caps);
gst_caps_unref (caps);
ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
/* pushing gives away my reference ... */
fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
/* ... and puts a new buffer on the global list */
fail_unless_equals_int (g_list_length (buffers), 1);
fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);
res = (gint16 *) GST_BUFFER_DATA (outbuffer);
fail_unless (res[0] == in[0]);
fail_unless (res[1] == in[1]);
fail_unless (res[2] == in[2]);
fail_unless (res[3] == in[3]);
fail_unless (res[4] == in[4]);
fail_unless (res[5] == in[5]);
fail_unless (res[6] == in[6]);
fail_unless (res[7] == in[7]);
/* cleanup */
cleanup_dynamic (dynamic);
}
GST_END_TEST;
GST_START_TEST (test_expand_hard_50_200)
{
GstElement *dynamic;
GstBuffer *inbuffer, *outbuffer;
GstCaps *caps;
gint16 in[8] = { -30000, 24576, -16383, 256, -128, 0, -24576, 30000 };
gint16 *res;
dynamic = setup_dynamic ();
g_object_set (G_OBJECT (dynamic), "mode", 1, NULL);
g_object_set (G_OBJECT (dynamic), "characteristics", 0, NULL);
g_object_set (G_OBJECT (dynamic), "ratio", 2.0, NULL);
g_object_set (G_OBJECT (dynamic), "threshold", 0.5, NULL);
fail_unless (gst_element_set_state (dynamic,
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
"could not set to playing");
inbuffer = gst_buffer_new_and_alloc (16);
memcpy (GST_BUFFER_DATA (inbuffer), in, 16);
fail_unless (memcmp (GST_BUFFER_DATA (inbuffer), in, 16) == 0);
caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
gst_buffer_set_caps (inbuffer, caps);
gst_caps_unref (caps);
ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
/* pushing gives away my reference ... */
fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
/* ... and puts a new buffer on the global list */
fail_unless_equals_int (g_list_length (buffers), 1);
fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);
res = (gint16 *) GST_BUFFER_DATA (outbuffer);
fail_unless (res[0] == in[0]);
fail_unless (res[1] == in[1]);
fail_unless (res[2] > in[2]);
fail_unless (res[3] < in[3]);
fail_unless (res[4] > in[4]);
fail_unless (res[5] == in[5]);
fail_unless (res[6] == in[6]);
fail_unless (res[7] == in[7]);
/* cleanup */
cleanup_dynamic (dynamic);
}
GST_END_TEST;
GST_START_TEST (test_expand_soft_50_200)
{
GstElement *dynamic;
GstBuffer *inbuffer, *outbuffer;
GstCaps *caps;
gint16 in[8] = { -30000, 24576, -16383, 256, -128, 0, -24576, 30000 };
gint16 *res;
dynamic = setup_dynamic ();
g_object_set (G_OBJECT (dynamic), "mode", 1, NULL);
g_object_set (G_OBJECT (dynamic), "characteristics", 1, NULL);
g_object_set (G_OBJECT (dynamic), "ratio", 2.0, NULL);
g_object_set (G_OBJECT (dynamic), "threshold", 0.5, NULL);
fail_unless (gst_element_set_state (dynamic,
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
"could not set to playing");
inbuffer = gst_buffer_new_and_alloc (16);
memcpy (GST_BUFFER_DATA (inbuffer), in, 16);
fail_unless (memcmp (GST_BUFFER_DATA (inbuffer), in, 16) == 0);
caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
gst_buffer_set_caps (inbuffer, caps);
gst_caps_unref (caps);
ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
/* pushing gives away my reference ... */
fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
/* ... and puts a new buffer on the global list */
fail_unless_equals_int (g_list_length (buffers), 1);
fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);
res = (gint16 *) GST_BUFFER_DATA (outbuffer);
fail_unless (res[0] == in[0]);
fail_unless (res[1] == in[1]);
fail_unless (res[2] > in[2]);
fail_unless (res[3] < in[3]);
fail_unless (res[4] > in[4]);
fail_unless (res[5] == in[5]);
fail_unless (res[6] == in[6]);
fail_unless (res[7] == in[7]);
/* cleanup */
cleanup_dynamic (dynamic);
}
GST_END_TEST;
GST_START_TEST (test_expand_hard_0_200)
{
GstElement *dynamic;
GstBuffer *inbuffer, *outbuffer;
GstCaps *caps;
gint16 in[8] = { -30000, 24576, -16383, 256, -128, 0, -24576, 30000 };
gint16 *res;
dynamic = setup_dynamic ();
g_object_set (G_OBJECT (dynamic), "mode", 1, NULL);
g_object_set (G_OBJECT (dynamic), "characteristics", 0, NULL);
g_object_set (G_OBJECT (dynamic), "ratio", 2.0, NULL);
g_object_set (G_OBJECT (dynamic), "threshold", 0.0, NULL);
fail_unless (gst_element_set_state (dynamic,
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
"could not set to playing");
inbuffer = gst_buffer_new_and_alloc (16);
memcpy (GST_BUFFER_DATA (inbuffer), in, 16);
fail_unless (memcmp (GST_BUFFER_DATA (inbuffer), in, 16) == 0);
caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
gst_buffer_set_caps (inbuffer, caps);
gst_caps_unref (caps);
ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
/* pushing gives away my reference ... */
fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
/* ... and puts a new buffer on the global list */
fail_unless_equals_int (g_list_length (buffers), 1);
fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);
res = (gint16 *) GST_BUFFER_DATA (outbuffer);
fail_unless (res[0] == in[0]);
fail_unless (res[1] == in[1]);
fail_unless (res[2] == in[2]);
fail_unless (res[3] == in[3]);
fail_unless (res[4] == in[4]);
fail_unless (res[5] == in[5]);
fail_unless (res[6] == in[6]);
fail_unless (res[7] == in[7]);
/* cleanup */
cleanup_dynamic (dynamic);
}
GST_END_TEST;
Suite *
dynamic_suite (void)
{
Suite *s = suite_create ("dynamic");
TCase *tc_chain = tcase_create ("general");
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, test_passthrough);
tcase_add_test (tc_chain, test_compress_hard_50_50);
tcase_add_test (tc_chain, test_compress_soft_50_50);
tcase_add_test (tc_chain, test_compress_hard_100_50);
tcase_add_test (tc_chain, test_expand_hard_50_200);
tcase_add_test (tc_chain, test_expand_soft_50_200);
tcase_add_test (tc_chain, test_expand_hard_0_200);
return s;
}
int
main (int argc, char **argv)
{
int nf;
Suite *s = dynamic_suite ();
SRunner *sr = srunner_create (s);
gst_check_init (&argc, &argv);
srunner_run_all (sr, CK_NORMAL);
nf = srunner_ntests_failed (sr);
srunner_free (sr);
return nf;
}