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Diffstat (limited to 'gst/level/gstlevel.c')
-rw-r--r--gst/level/gstlevel.c89
1 files changed, 45 insertions, 44 deletions
diff --git a/gst/level/gstlevel.c b/gst/level/gstlevel.c
index 9a822436..391863d0 100644
--- a/gst/level/gstlevel.c
+++ b/gst/level/gstlevel.c
@@ -98,8 +98,9 @@ gst_level_get_type (void)
sizeof (GstLevel), 0,
(GInstanceInitFunc) gst_level_init
};
+
level_type = g_type_register_static (GST_TYPE_ELEMENT, "GstLevel",
- &level_info, 0);
+ &level_info, 0);
}
return level_type;
}
@@ -160,8 +161,8 @@ gst_level_link (GstPad * pad, const GstCaps * caps)
for (i = 0; i < filter->channels; ++i) {
filter->CS[i] = filter->peak[i] = filter->last_peak[i] =
- filter->decay_peak[i] = filter->decay_peak_age[i] =
- filter->MS[i] = filter->RMS_dB[i] = 0.0;
+ filter->decay_peak[i] = filter->decay_peak_age[i] =
+ filter->MS[i] = filter->RMS_dB[i] = 0.0;
}
filter->inited = TRUE;
@@ -174,7 +175,7 @@ gst_level_fast_16bit_chain (gint16 * in, guint num, gint channels,
gint resolution, double *CS, double *peak)
#include "filter.func"
static void inline
- gst_level_fast_8bit_chain (gint8 * in, guint num, gint channels,
+ gst_level_fast_8bit_chain (gint8 * in, guint num, gint channels,
gint resolution, double *CS, double *peak)
#include "filter.func"
static void gst_level_chain (GstPad * pad, GstData * _data)
@@ -203,18 +204,18 @@ gst_level_fast_16bit_chain (gint16 * in, guint num, gint channels,
num_samples = GST_BUFFER_SIZE (buf) / (filter->width / 8);
if (num_samples % filter->channels != 0)
g_warning
- ("WARNING: level: programming error, data not properly interleaved");
+ ("WARNING: level: programming error, data not properly interleaved");
for (i = 0; i < filter->channels; ++i) {
switch (filter->width) {
case 16:
- gst_level_fast_16bit_chain (in_data + i, num_samples,
- filter->channels, filter->width - 1, &CS, &filter->peak[i]);
- break;
+ gst_level_fast_16bit_chain (in_data + i, num_samples,
+ filter->channels, filter->width - 1, &CS, &filter->peak[i]);
+ break;
case 8:
- gst_level_fast_8bit_chain (((gint8 *) in_data) + i, num_samples,
- filter->channels, filter->width - 1, &CS, &filter->peak[i]);
- break;
+ gst_level_fast_8bit_chain (((gint8 *) in_data) + i, num_samples,
+ filter->channels, filter->width - 1, &CS, &filter->peak[i]);
+ break;
}
/* g_print ("DEBUG: CS %f, peak %f\n", CS, filter->peak[i]); */
filter->CS[i] += CS;
@@ -240,20 +241,20 @@ gst_level_fast_16bit_chain (gint16 * in, guint num, gint channels,
} else {
/* make decay peak fall off if too old */
if (filter->decay_peak_age[i] > filter->rate * filter->decay_peak_ttl) {
- double falloff_dB;
- double falloff;
- double length; /* length of buffer in seconds */
+ double falloff_dB;
+ double falloff;
+ double length; /* length of buffer in seconds */
- length = (double) num_samples / (filter->channels * filter->rate);
- falloff_dB = filter->decay_peak_falloff * length;
- falloff = pow (10, falloff_dB / -20.0);
+ length = (double) num_samples / (filter->channels * filter->rate);
+ falloff_dB = filter->decay_peak_falloff * length;
+ falloff = pow (10, falloff_dB / -20.0);
- /* g_print ("falloff: length %f, dB falloff %f, falloff factor %e\n",
- length, falloff_dB, falloff); */
- filter->decay_peak[i] *= falloff;
- /* g_print ("peak is %f samples old, decayed with factor %e to %f\n",
- filter->decay_peak_age[i], falloff, filter->decay_peak[i]); */
+ /* g_print ("falloff: length %f, dB falloff %f, falloff factor %e\n",
+ length, falloff_dB, falloff); */
+ filter->decay_peak[i] *= falloff;
+ /* g_print ("peak is %f samples old, decayed with factor %e to %f\n",
+ filter->decay_peak_age[i], falloff, filter->decay_peak[i]); */
}
}
}
@@ -265,19 +266,19 @@ gst_level_fast_16bit_chain (gint16 * in, guint num, gint channels,
gdouble RMS, peak, endtime;
for (i = 0; i < filter->channels; ++i) {
- RMS = sqrt (filter->CS[i] / (filter->num_samples / filter->channels));
- peak = filter->last_peak[i];
- num_samples = GST_BUFFER_SIZE (buf) / (filter->width / 8);
- endtime = (double) GST_BUFFER_TIMESTAMP (buf) / GST_SECOND
- + (double) num_samples / (double) filter->rate;
-
- g_signal_emit (G_OBJECT (filter), gst_filter_signals[SIGNAL_LEVEL], 0,
- endtime, i,
- 20 * log10 (RMS), 20 * log10 (filter->last_peak[i]),
- 20 * log10 (filter->decay_peak[i]));
- /* we emitted, so reset cumulative and normal peak */
- filter->CS[i] = 0.0;
- filter->last_peak[i] = 0.0;
+ RMS = sqrt (filter->CS[i] / (filter->num_samples / filter->channels));
+ peak = filter->last_peak[i];
+ num_samples = GST_BUFFER_SIZE (buf) / (filter->width / 8);
+ endtime = (double) GST_BUFFER_TIMESTAMP (buf) / GST_SECOND
+ + (double) num_samples / (double) filter->rate;
+
+ g_signal_emit (G_OBJECT (filter), gst_filter_signals[SIGNAL_LEVEL], 0,
+ endtime, i,
+ 20 * log10 (RMS), 20 * log10 (filter->last_peak[i]),
+ 20 * log10 (filter->decay_peak[i]));
+ /* we emitted, so reset cumulative and normal peak */
+ filter->CS[i] = 0.0;
+ filter->last_peak[i] = 0.0;
}
}
filter->num_samples = 0;
@@ -292,7 +293,7 @@ gst_level_change_state (GstElement * element)
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_PAUSED_TO_PLAYING:
if (!filter->inited)
- return GST_STATE_FAILURE;
+ return GST_STATE_FAILURE;
break;
default:
break;
@@ -384,19 +385,19 @@ gst_level_class_init (GstLevelClass * klass)
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SIGNAL_LEVEL,
g_param_spec_boolean ("signal", "Signal",
- "Emit level signals for each interval", TRUE, G_PARAM_READWRITE));
+ "Emit level signals for each interval", TRUE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SIGNAL_INTERVAL,
g_param_spec_double ("interval", "Interval",
- "Interval between emissions (in seconds)",
- 0.01, 100.0, 0.1, G_PARAM_READWRITE));
+ "Interval between emissions (in seconds)",
+ 0.01, 100.0, 0.1, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_PEAK_TTL,
g_param_spec_double ("peak_ttl", "Peak TTL",
- "Time To Live of decay peak before it falls back",
- 0, 100.0, 0.3, G_PARAM_READWRITE));
+ "Time To Live of decay peak before it falls back",
+ 0, 100.0, 0.3, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_PEAK_FALLOFF,
g_param_spec_double ("peak_falloff", "Peak Falloff",
- "Decay rate of decay peak after TTL (in dB/sec)",
- 0.0, G_MAXDOUBLE, 10.0, G_PARAM_READWRITE));
+ "Decay rate of decay peak after TTL (in dB/sec)",
+ 0.0, G_MAXDOUBLE, 10.0, G_PARAM_READWRITE));
gobject_class->set_property = gst_level_set_property;
gobject_class->get_property = gst_level_get_property;
@@ -437,7 +438,7 @@ gst_level_init (GstLevel * filter)
filter->interval = 0.1;
filter->decay_peak_ttl = 0.4;
- filter->decay_peak_falloff = 10.0; /* dB falloff (/sec) */
+ filter->decay_peak_falloff = 10.0; /* dB falloff (/sec) */
}
static gboolean
generated by cgit (git 2.34.1) at 2025-06-15 07:41:32 +0000