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Diffstat (limited to 'gst/audiofx/audiocheblimit.c')
-rw-r--r--gst/audiofx/audiocheblimit.c120
1 files changed, 57 insertions, 63 deletions
diff --git a/gst/audiofx/audiocheblimit.c b/gst/audiofx/audiocheblimit.c
index 344db9f1..1374faf9 100644
--- a/gst/audiofx/audiocheblimit.c
+++ b/gst/audiofx/audiocheblimit.c
@@ -29,7 +29,7 @@
*/
/**
- * SECTION:element-audiochebyshevfreqlimit
+ * SECTION:element-audiocheblimit
* @short_description: Chebyshev low pass and high pass filter
*
* <refsect2>
@@ -61,9 +61,9 @@
* <title>Example launch line</title>
* <para>
* <programlisting>
- * gst-launch audiotestsrc freq=1500 ! audioconvert ! audiochebyshevfreqlimit mode=low-pass cutoff=1000 poles=4 ! audioconvert ! alsasink
- * gst-launch filesrc location="melo1.ogg" ! oggdemux ! vorbisdec ! audioconvert ! audiochebyshevfreqlimit mode=high-pass cutoff=400 ripple=0.2 ! audioconvert ! alsasink
- * gst-launch audiotestsrc wave=white-noise ! audioconvert ! audiochebyshevfreqlimit mode=low-pass cutoff=800 type=2 ! audioconvert ! alsasink
+ * gst-launch audiotestsrc freq=1500 ! audioconvert ! audiocheblimit mode=low-pass cutoff=1000 poles=4 ! audioconvert ! alsasink
+ * gst-launch filesrc location="melo1.ogg" ! oggdemux ! vorbisdec ! audioconvert ! audiocheblimit mode=high-pass cutoff=400 ripple=0.2 ! audioconvert ! alsasink
+ * gst-launch audiotestsrc wave=white-noise ! audioconvert ! audiocheblimit mode=low-pass cutoff=800 type=2 ! audioconvert ! alsasink
* </programlisting>
* </para>
* </refsect2>
@@ -81,13 +81,13 @@
#include <math.h>
-#include "audiochebyshevfreqlimit.h"
+#include "audiocheblimit.h"
-#define GST_CAT_DEFAULT gst_audio_chebyshev_freq_limit_debug
+#define GST_CAT_DEFAULT gst_audio_cheb_limit_debug
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
static const GstElementDetails element_details =
-GST_ELEMENT_DETAILS ("AudioChebyshevFreqLimit",
+GST_ELEMENT_DETAILS ("AudioChebLimit",
"Filter/Effect/Audio",
"Chebyshev low pass and high pass filter",
"Sebastian Dröge <slomo@circular-chaos.org>");
@@ -117,27 +117,25 @@ enum
" channels = (int) [ 1, MAX ]"
#define DEBUG_INIT(bla) \
- GST_DEBUG_CATEGORY_INIT (gst_audio_chebyshev_freq_limit_debug, "audiochebyshevfreqlimit", 0, "audiochebyshevfreqlimit element");
+ GST_DEBUG_CATEGORY_INIT (gst_audio_cheb_limit_debug, "audiocheblimit", 0, "audiocheblimit element");
-GST_BOILERPLATE_FULL (GstAudioChebyshevFreqLimit,
- gst_audio_chebyshev_freq_limit, GstAudioFilter, GST_TYPE_AUDIO_FILTER,
- DEBUG_INIT);
+GST_BOILERPLATE_FULL (GstAudioChebLimit,
+ gst_audio_cheb_limit, GstAudioFilter, GST_TYPE_AUDIO_FILTER, DEBUG_INIT);
-static void gst_audio_chebyshev_freq_limit_set_property (GObject * object,
+static void gst_audio_cheb_limit_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec);
-static void gst_audio_chebyshev_freq_limit_get_property (GObject * object,
+static void gst_audio_cheb_limit_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
-static gboolean gst_audio_chebyshev_freq_limit_setup (GstAudioFilter * filter,
+static gboolean gst_audio_cheb_limit_setup (GstAudioFilter * filter,
GstRingBufferSpec * format);
static GstFlowReturn
-gst_audio_chebyshev_freq_limit_transform_ip (GstBaseTransform * base,
- GstBuffer * buf);
-static gboolean gst_audio_chebyshev_freq_limit_start (GstBaseTransform * base);
+gst_audio_cheb_limit_transform_ip (GstBaseTransform * base, GstBuffer * buf);
+static gboolean gst_audio_cheb_limit_start (GstBaseTransform * base);
-static void process_64 (GstAudioChebyshevFreqLimit * filter,
+static void process_64 (GstAudioChebLimit * filter,
gdouble * data, guint num_samples);
-static void process_32 (GstAudioChebyshevFreqLimit * filter,
+static void process_32 (GstAudioChebLimit * filter,
gfloat * data, guint num_samples);
enum
@@ -146,9 +144,9 @@ enum
MODE_HIGH_PASS
};
-#define GST_TYPE_AUDIO_CHEBYSHEV_FREQ_LIMIT_MODE (gst_audio_chebyshev_freq_limit_mode_get_type ())
+#define GST_TYPE_AUDIO_CHEBYSHEV_FREQ_LIMIT_MODE (gst_audio_cheb_limit_mode_get_type ())
static GType
-gst_audio_chebyshev_freq_limit_mode_get_type (void)
+gst_audio_cheb_limit_mode_get_type (void)
{
static GType gtype = 0;
@@ -161,7 +159,7 @@ gst_audio_chebyshev_freq_limit_mode_get_type (void)
{0, NULL, NULL}
};
- gtype = g_enum_register_static ("GstAudioChebyshevFreqLimitMode", values);
+ gtype = g_enum_register_static ("GstAudioChebLimitMode", values);
}
return gtype;
}
@@ -169,7 +167,7 @@ gst_audio_chebyshev_freq_limit_mode_get_type (void)
/* GObject vmethod implementations */
static void
-gst_audio_chebyshev_freq_limit_base_init (gpointer klass)
+gst_audio_cheb_limit_base_init (gpointer klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstCaps *caps;
@@ -183,9 +181,9 @@ gst_audio_chebyshev_freq_limit_base_init (gpointer klass)
}
static void
-gst_audio_chebyshev_freq_limit_dispose (GObject * object)
+gst_audio_cheb_limit_dispose (GObject * object)
{
- GstAudioChebyshevFreqLimit *filter = GST_AUDIO_CHEBYSHEV_FREQ_LIMIT (object);
+ GstAudioChebLimit *filter = GST_AUDIO_CHEB_LIMIT (object);
if (filter->a) {
g_free (filter->a);
@@ -198,7 +196,7 @@ gst_audio_chebyshev_freq_limit_dispose (GObject * object)
}
if (filter->channels) {
- GstAudioChebyshevFreqLimitChannelCtx *ctx;
+ GstAudioChebLimitChannelCtx *ctx;
gint i, channels = GST_AUDIO_FILTER (filter)->format.channels;
for (i = 0; i < channels; i++) {
@@ -215,8 +213,7 @@ gst_audio_chebyshev_freq_limit_dispose (GObject * object)
}
static void
-gst_audio_chebyshev_freq_limit_class_init (GstAudioChebyshevFreqLimitClass *
- klass)
+gst_audio_cheb_limit_class_init (GstAudioChebLimitClass * klass)
{
GObjectClass *gobject_class;
GstBaseTransformClass *trans_class;
@@ -226,9 +223,9 @@ gst_audio_chebyshev_freq_limit_class_init (GstAudioChebyshevFreqLimitClass *
trans_class = (GstBaseTransformClass *) klass;
filter_class = (GstAudioFilterClass *) klass;
- gobject_class->set_property = gst_audio_chebyshev_freq_limit_set_property;
- gobject_class->get_property = gst_audio_chebyshev_freq_limit_get_property;
- gobject_class->dispose = gst_audio_chebyshev_freq_limit_dispose;
+ gobject_class->set_property = gst_audio_cheb_limit_set_property;
+ gobject_class->get_property = gst_audio_cheb_limit_get_property;
+ gobject_class->dispose = gst_audio_cheb_limit_dispose;
g_object_class_install_property (gobject_class, PROP_MODE,
g_param_spec_enum ("mode", "Mode",
@@ -256,16 +253,15 @@ gst_audio_chebyshev_freq_limit_class_init (GstAudioChebyshevFreqLimitClass *
"Number of poles to use, will be rounded up to the next even number",
2, 32, 4, G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
- filter_class->setup =
- GST_DEBUG_FUNCPTR (gst_audio_chebyshev_freq_limit_setup);
+ filter_class->setup = GST_DEBUG_FUNCPTR (gst_audio_cheb_limit_setup);
trans_class->transform_ip =
- GST_DEBUG_FUNCPTR (gst_audio_chebyshev_freq_limit_transform_ip);
- trans_class->start = GST_DEBUG_FUNCPTR (gst_audio_chebyshev_freq_limit_start);
+ GST_DEBUG_FUNCPTR (gst_audio_cheb_limit_transform_ip);
+ trans_class->start = GST_DEBUG_FUNCPTR (gst_audio_cheb_limit_start);
}
static void
-gst_audio_chebyshev_freq_limit_init (GstAudioChebyshevFreqLimit * filter,
- GstAudioChebyshevFreqLimitClass * klass)
+gst_audio_cheb_limit_init (GstAudioChebLimit * filter,
+ GstAudioChebLimitClass * klass)
{
filter->cutoff = 0.0;
filter->mode = MODE_LOW_PASS;
@@ -281,7 +277,7 @@ gst_audio_chebyshev_freq_limit_init (GstAudioChebyshevFreqLimit * filter,
}
static void
-generate_biquad_coefficients (GstAudioChebyshevFreqLimit * filter,
+generate_biquad_coefficients (GstAudioChebLimit * filter,
gint p, gdouble * a0, gdouble * a1, gdouble * a2,
gdouble * b1, gdouble * b2)
{
@@ -471,7 +467,7 @@ calculate_gain (gdouble * a, gdouble * b, gint num_a, gint num_b, gdouble zr,
}
static void
-generate_coefficients (GstAudioChebyshevFreqLimit * filter)
+generate_coefficients (GstAudioChebLimit * filter)
{
gint channels = GST_AUDIO_FILTER (filter)->format.channels;
@@ -486,7 +482,7 @@ generate_coefficients (GstAudioChebyshevFreqLimit * filter)
}
if (filter->channels) {
- GstAudioChebyshevFreqLimitChannelCtx *ctx;
+ GstAudioChebLimitChannelCtx *ctx;
gint i;
for (i = 0; i < channels; i++) {
@@ -504,7 +500,7 @@ generate_coefficients (GstAudioChebyshevFreqLimit * filter)
filter->a = g_new0 (gdouble, 1);
filter->a[0] = 1.0;
filter->num_b = 0;
- filter->channels = g_new0 (GstAudioChebyshevFreqLimitChannelCtx, channels);
+ filter->channels = g_new0 (GstAudioChebLimitChannelCtx, channels);
GST_LOG_OBJECT (filter, "rate was not set yet");
return;
}
@@ -516,7 +512,7 @@ generate_coefficients (GstAudioChebyshevFreqLimit * filter)
filter->a = g_new0 (gdouble, 1);
filter->a[0] = (filter->mode == MODE_LOW_PASS) ? 1.0 : 0.0;
filter->num_b = 0;
- filter->channels = g_new0 (GstAudioChebyshevFreqLimitChannelCtx, channels);
+ filter->channels = g_new0 (GstAudioChebLimitChannelCtx, channels);
GST_LOG_OBJECT (filter, "cutoff was higher than nyquist frequency");
return;
} else if (filter->cutoff <= 0.0) {
@@ -524,7 +520,7 @@ generate_coefficients (GstAudioChebyshevFreqLimit * filter)
filter->a = g_new0 (gdouble, 1);
filter->a[0] = (filter->mode == MODE_LOW_PASS) ? 0.0 : 1.0;
filter->num_b = 0;
- filter->channels = g_new0 (GstAudioChebyshevFreqLimitChannelCtx, channels);
+ filter->channels = g_new0 (GstAudioChebLimitChannelCtx, channels);
GST_LOG_OBJECT (filter, "cutoff is lower than zero");
return;
}
@@ -540,9 +536,9 @@ generate_coefficients (GstAudioChebyshevFreqLimit * filter)
filter->num_b = np + 1;
filter->b = b = g_new0 (gdouble, np + 3);
- filter->channels = g_new0 (GstAudioChebyshevFreqLimitChannelCtx, channels);
+ filter->channels = g_new0 (GstAudioChebLimitChannelCtx, channels);
for (i = 0; i < channels; i++) {
- GstAudioChebyshevFreqLimitChannelCtx *ctx = &filter->channels[i];
+ GstAudioChebLimitChannelCtx *ctx = &filter->channels[i];
ctx->x = g_new0 (gdouble, np + 1);
ctx->y = g_new0 (gdouble, np + 1);
@@ -623,10 +619,10 @@ generate_coefficients (GstAudioChebyshevFreqLimit * filter)
}
static void
-gst_audio_chebyshev_freq_limit_set_property (GObject * object, guint prop_id,
+gst_audio_cheb_limit_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
- GstAudioChebyshevFreqLimit *filter = GST_AUDIO_CHEBYSHEV_FREQ_LIMIT (object);
+ GstAudioChebLimit *filter = GST_AUDIO_CHEB_LIMIT (object);
switch (prop_id) {
case PROP_MODE:
@@ -666,10 +662,10 @@ gst_audio_chebyshev_freq_limit_set_property (GObject * object, guint prop_id,
}
static void
-gst_audio_chebyshev_freq_limit_get_property (GObject * object, guint prop_id,
+gst_audio_cheb_limit_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
- GstAudioChebyshevFreqLimit *filter = GST_AUDIO_CHEBYSHEV_FREQ_LIMIT (object);
+ GstAudioChebLimit *filter = GST_AUDIO_CHEB_LIMIT (object);
switch (prop_id) {
case PROP_MODE:
@@ -696,17 +692,16 @@ gst_audio_chebyshev_freq_limit_get_property (GObject * object, guint prop_id,
/* GstAudioFilter vmethod implementations */
static gboolean
-gst_audio_chebyshev_freq_limit_setup (GstAudioFilter * base,
- GstRingBufferSpec * format)
+gst_audio_cheb_limit_setup (GstAudioFilter * base, GstRingBufferSpec * format)
{
- GstAudioChebyshevFreqLimit *filter = GST_AUDIO_CHEBYSHEV_FREQ_LIMIT (base);
+ GstAudioChebLimit *filter = GST_AUDIO_CHEB_LIMIT (base);
gboolean ret = TRUE;
if (format->width == 32)
- filter->process = (GstAudioChebyshevFreqLimitProcessFunc)
+ filter->process = (GstAudioChebLimitProcessFunc)
process_32;
else if (format->width == 64)
- filter->process = (GstAudioChebyshevFreqLimitProcessFunc)
+ filter->process = (GstAudioChebLimitProcessFunc)
process_64;
else
ret = FALSE;
@@ -717,8 +712,8 @@ gst_audio_chebyshev_freq_limit_setup (GstAudioFilter * base,
}
static inline gdouble
-process (GstAudioChebyshevFreqLimit * filter,
- GstAudioChebyshevFreqLimitChannelCtx * ctx, gdouble x0)
+process (GstAudioChebLimit * filter,
+ GstAudioChebLimitChannelCtx * ctx, gdouble x0)
{
gdouble val = filter->a[0] * x0;
gint i, j;
@@ -757,7 +752,7 @@ process (GstAudioChebyshevFreqLimit * filter,
#define DEFINE_PROCESS_FUNC(width,ctype) \
static void \
-process_##width (GstAudioChebyshevFreqLimit * filter, \
+process_##width (GstAudioChebLimit * filter, \
g##ctype * data, guint num_samples) \
{ \
gint i, j, channels = GST_AUDIO_FILTER (filter)->format.channels; \
@@ -778,10 +773,9 @@ DEFINE_PROCESS_FUNC (64, double);
/* GstBaseTransform vmethod implementations */
static GstFlowReturn
-gst_audio_chebyshev_freq_limit_transform_ip (GstBaseTransform * base,
- GstBuffer * buf)
+gst_audio_cheb_limit_transform_ip (GstBaseTransform * base, GstBuffer * buf)
{
- GstAudioChebyshevFreqLimit *filter = GST_AUDIO_CHEBYSHEV_FREQ_LIMIT (base);
+ GstAudioChebLimit *filter = GST_AUDIO_CHEB_LIMIT (base);
guint num_samples =
GST_BUFFER_SIZE (buf) / (GST_AUDIO_FILTER (filter)->format.width / 8);
@@ -801,11 +795,11 @@ gst_audio_chebyshev_freq_limit_transform_ip (GstBaseTransform * base,
static gboolean
-gst_audio_chebyshev_freq_limit_start (GstBaseTransform * base)
+gst_audio_cheb_limit_start (GstBaseTransform * base)
{
- GstAudioChebyshevFreqLimit *filter = GST_AUDIO_CHEBYSHEV_FREQ_LIMIT (base);
+ GstAudioChebLimit *filter = GST_AUDIO_CHEB_LIMIT (base);
gint channels = GST_AUDIO_FILTER (filter)->format.channels;
- GstAudioChebyshevFreqLimitChannelCtx *ctx;
+ GstAudioChebLimitChannelCtx *ctx;
gint i;
/* Reset the history of input and output values if
generated by cgit (git 2.34.1) at 2024-06-10 21:54:30 +0000