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-rw-r--r--gst/stereo/gststereo.c172
1 files changed, 85 insertions, 87 deletions
diff --git a/gst/stereo/gststereo.c b/gst/stereo/gststereo.c
index f2e9a79d..947c3885 100644
--- a/gst/stereo/gststereo.c
+++ b/gst/stereo/gststereo.c
@@ -28,56 +28,61 @@
#include <gststereo.h>
/* elementfactory information */
-static GstElementDetails stereo_details = GST_ELEMENT_DETAILS (
- "Stereo effect",
- "Filter/Effect/Audio",
- "Muck with the stereo signal to enhance its 'stereo-ness'",
- "Erik Walthinsen <omega@cse.ogi.edu>"
-);
+static GstElementDetails stereo_details = GST_ELEMENT_DETAILS ("Stereo effect",
+ "Filter/Effect/Audio",
+ "Muck with the stereo signal to enhance its 'stereo-ness'",
+ "Erik Walthinsen <omega@cse.ogi.edu>");
/* Stereo signals and args */
-enum {
+enum
+{
/* FILL ME */
LAST_SIGNAL
};
-enum {
+enum
+{
ARG_0,
ARG_ACTIVE,
ARG_STEREO
};
-static void gst_stereo_base_init (gpointer g_class);
-static void gst_stereo_class_init (GstStereoClass *klass);
-static void gst_stereo_init (GstStereo *stereo);
+static void gst_stereo_base_init (gpointer g_class);
+static void gst_stereo_class_init (GstStereoClass * klass);
+static void gst_stereo_init (GstStereo * stereo);
-static void gst_stereo_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
-static void gst_stereo_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
+static void gst_stereo_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_stereo_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
-static void gst_stereo_chain (GstPad *pad, GstData *_data);
+static void gst_stereo_chain (GstPad * pad, GstData * _data);
static GstElementClass *parent_class = NULL;
+
/*static guint gst_stereo_signals[LAST_SIGNAL] = { 0 }; */
GType
-gst_stereo_get_type(void) {
+gst_stereo_get_type (void)
+{
static GType stereo_type = 0;
if (!stereo_type) {
static const GTypeInfo stereo_info = {
- sizeof(GstStereoClass),
+ sizeof (GstStereoClass),
gst_stereo_base_init,
NULL,
- (GClassInitFunc)gst_stereo_class_init,
+ (GClassInitFunc) gst_stereo_class_init,
NULL,
NULL,
- sizeof(GstStereo),
+ sizeof (GstStereo),
0,
- (GInstanceInitFunc)gst_stereo_init,
+ (GInstanceInitFunc) gst_stereo_init,
};
- stereo_type = g_type_register_static(GST_TYPE_ELEMENT, "GstStereo", &stereo_info, 0);
+ stereo_type =
+ g_type_register_static (GST_TYPE_ELEMENT, "GstStereo", &stereo_info, 0);
}
return stereo_type;
}
@@ -86,60 +91,57 @@ static void
gst_stereo_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
+
gst_element_class_set_details (element_class, &stereo_details);
}
static void
-gst_stereo_class_init (GstStereoClass *klass)
+gst_stereo_class_init (GstStereoClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
- gobject_class = (GObjectClass*)klass;
- gstelement_class = (GstElementClass*)klass;
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
- parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
+ parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_ACTIVE,
- g_param_spec_int("active","active","active",
- G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_STEREO,
- g_param_spec_float("stereo","stereo","stereo",
- 0.0,1.0,0.0,G_PARAM_READWRITE)); /* CHECKME */
+ g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_ACTIVE, g_param_spec_int ("active", "active", "active", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); /* CHECKME */
+ g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_STEREO, g_param_spec_float ("stereo", "stereo", "stereo", 0.0, 1.0, 0.0, G_PARAM_READWRITE)); /* CHECKME */
gobject_class->set_property = gst_stereo_set_property;
gobject_class->get_property = gst_stereo_get_property;
}
static void
-gst_stereo_init (GstStereo *stereo)
+gst_stereo_init (GstStereo * stereo)
{
- stereo->sinkpad = gst_pad_new("sink",GST_PAD_SINK);
- gst_element_add_pad(GST_ELEMENT(stereo),stereo->sinkpad);
- gst_pad_set_chain_function(stereo->sinkpad,gst_stereo_chain);
- stereo->srcpad = gst_pad_new("src",GST_PAD_SRC);
- gst_element_add_pad(GST_ELEMENT(stereo),stereo->srcpad);
+ stereo->sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
+ gst_element_add_pad (GST_ELEMENT (stereo), stereo->sinkpad);
+ gst_pad_set_chain_function (stereo->sinkpad, gst_stereo_chain);
+ stereo->srcpad = gst_pad_new ("src", GST_PAD_SRC);
+ gst_element_add_pad (GST_ELEMENT (stereo), stereo->srcpad);
stereo->active = FALSE;
stereo->stereo = 2.5;
}
static void
-gst_stereo_chain (GstPad *pad,GstData *_data)
+gst_stereo_chain (GstPad * pad, GstData * _data)
{
GstBuffer *buf = GST_BUFFER (_data);
GstStereo *stereo;
gint16 *data;
gint samples;
gint i;
- gdouble avg,ldiff,rdiff,tmp,mul;
+ gdouble avg, ldiff, rdiff, tmp, mul;
- g_return_if_fail(pad != NULL);
- g_return_if_fail(GST_IS_PAD(pad));
- g_return_if_fail(buf != NULL);
+ g_return_if_fail (pad != NULL);
+ g_return_if_fail (GST_IS_PAD (pad));
+ g_return_if_fail (buf != NULL);
- stereo = GST_STEREO(GST_OBJECT_PARENT (pad));
- g_return_if_fail(stereo != NULL);
- g_return_if_fail(GST_IS_STEREO(stereo));
+ stereo = GST_STEREO (GST_OBJECT_PARENT (pad));
+ g_return_if_fail (stereo != NULL);
+ g_return_if_fail (GST_IS_STEREO (stereo));
/* FIXME */
/* if (buf->meta) */
@@ -148,42 +150,43 @@ gst_stereo_chain (GstPad *pad,GstData *_data)
if (stereo->active) {
/*if (stereo->meta.channels == 2 && stereo->meta.format == AFMT_S16_LE) { */
- data = (gint16 *)GST_BUFFER_DATA(buf);
- samples = GST_BUFFER_SIZE(buf) / 2;
- mul = stereo->stereo;
- for (i = 0; i < samples / 2; i += 2) {
- avg = (data[i] + data[i + 1]) / 2;
- ldiff = data[i] - avg;
- rdiff = data[i + 1] - avg;
-
- tmp = avg + ldiff * mul;
- if (tmp < -32768)
- tmp = -32768;
- if (tmp > 32767)
- tmp = 32767;
- data[i] = tmp;
-
- tmp = avg + rdiff * mul;
- if (tmp < -32768)
- tmp = -32768;
- if (tmp > 32767)
- tmp = 32767;
- data[i + 1] = tmp;
- }
+ data = (gint16 *) GST_BUFFER_DATA (buf);
+ samples = GST_BUFFER_SIZE (buf) / 2;
+ mul = stereo->stereo;
+ for (i = 0; i < samples / 2; i += 2) {
+ avg = (data[i] + data[i + 1]) / 2;
+ ldiff = data[i] - avg;
+ rdiff = data[i + 1] - avg;
+
+ tmp = avg + ldiff * mul;
+ if (tmp < -32768)
+ tmp = -32768;
+ if (tmp > 32767)
+ tmp = 32767;
+ data[i] = tmp;
+
+ tmp = avg + rdiff * mul;
+ if (tmp < -32768)
+ tmp = -32768;
+ if (tmp > 32767)
+ tmp = 32767;
+ data[i + 1] = tmp;
+ }
/*} */
}
- gst_pad_push(stereo->srcpad,GST_DATA (buf));
+ gst_pad_push (stereo->srcpad, GST_DATA (buf));
}
static void
-gst_stereo_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
+gst_stereo_set_property (GObject * object, guint prop_id, const GValue * value,
+ GParamSpec * pspec)
{
GstStereo *stereo;
/* it's not null if we got it, but it might not be ours */
- g_return_if_fail(GST_IS_STEREO(object));
- stereo = GST_STEREO(object);
+ g_return_if_fail (GST_IS_STEREO (object));
+ stereo = GST_STEREO (object);
switch (prop_id) {
case ARG_ACTIVE:
@@ -198,13 +201,14 @@ gst_stereo_set_property (GObject *object, guint prop_id, const GValue *value, GP
}
static void
-gst_stereo_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+gst_stereo_get_property (GObject * object, guint prop_id, GValue * value,
+ GParamSpec * pspec)
{
GstStereo *stereo;
/* it's not null if we got it, but it might not be ours */
- g_return_if_fail(GST_IS_STEREO(object));
- stereo = GST_STEREO(object);
+ g_return_if_fail (GST_IS_STEREO (object));
+ stereo = GST_STEREO (object);
switch (prop_id) {
case ARG_ACTIVE:
@@ -220,20 +224,14 @@ gst_stereo_get_property (GObject *object, guint prop_id, GValue *value, GParamSp
}
static gboolean
-plugin_init (GstPlugin *plugin)
+plugin_init (GstPlugin * plugin)
{
- return gst_element_register (plugin, "stereo", GST_RANK_NONE, GST_TYPE_STEREO);
+ return gst_element_register (plugin, "stereo", GST_RANK_NONE,
+ GST_TYPE_STEREO);
}
-GST_PLUGIN_DEFINE (
- GST_VERSION_MAJOR,
- GST_VERSION_MINOR,
- "stereo",
- "Muck with the stereo signal, enhance it's 'stereo-ness'",
- plugin_init,
- VERSION,
- GST_LICENSE,
- GST_PACKAGE,
- GST_ORIGIN
-)
-
+GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
+ GST_VERSION_MINOR,
+ "stereo",
+ "Muck with the stereo signal, enhance it's 'stereo-ness'",
+ plugin_init, VERSION, GST_LICENSE, GST_PACKAGE, GST_ORIGIN)
generated by cgit v1.2.1 (git 2.18.0) at 2024-07-01 10:38:08 +0000