summaryrefslogtreecommitdiffstats
path: root/gst/smoothwave/gstsmoothwave.c
diff options
context:
space:
mode:
Diffstat (limited to 'gst/smoothwave/gstsmoothwave.c')
-rw-r--r--gst/smoothwave/gstsmoothwave.c202
1 files changed, 99 insertions, 103 deletions
diff --git a/gst/smoothwave/gstsmoothwave.c b/gst/smoothwave/gstsmoothwave.c
index 57c267e5..2abbdec2 100644
--- a/gst/smoothwave/gstsmoothwave.c
+++ b/gst/smoothwave/gstsmoothwave.c
@@ -25,37 +25,41 @@
#include "gstsmoothwave.h"
-static GstElementDetails gst_smoothwave_details = GST_ELEMENT_DETAILS (
- "Smooth waveform",
- "Visualization",
- "Fading grayscale waveform display",
- "Erik Walthinsen <omega@cse.ogi.edu>"
-);
+static GstElementDetails gst_smoothwave_details =
+GST_ELEMENT_DETAILS ("Smooth waveform",
+ "Visualization",
+ "Fading grayscale waveform display",
+ "Erik Walthinsen <omega@cse.ogi.edu>");
/* SmoothWave signals and args */
-enum {
+enum
+{
/* FILL ME */
LAST_SIGNAL
};
-enum {
+enum
+{
ARG_0,
ARG_WIDTH,
ARG_HEIGHT,
ARG_WIDGET,
};
-static void gst_smoothwave_base_init (gpointer g_class);
-static void gst_smoothwave_class_init (GstSmoothWaveClass *klass);
-static void gst_smoothwave_init (GstSmoothWave *smoothwave);
+static void gst_smoothwave_base_init (gpointer g_class);
+static void gst_smoothwave_class_init (GstSmoothWaveClass * klass);
+static void gst_smoothwave_init (GstSmoothWave * smoothwave);
-static void gst_smoothwave_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
-static void gst_smoothwave_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
+static void gst_smoothwave_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_smoothwave_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
-static void gst_smoothwave_chain (GstPad *pad, GstData *_data);
+static void gst_smoothwave_chain (GstPad * pad, GstData * _data);
static GstElementClass *parent_class = NULL;
+
/*static guint gst_smoothwave_signals[LAST_SIGNAL] = { 0 }; */
@@ -66,17 +70,19 @@ gst_smoothwave_get_type (void)
if (!smoothwave_type) {
static const GTypeInfo smoothwave_info = {
- sizeof(GstSmoothWaveClass),
+ sizeof (GstSmoothWaveClass),
gst_smoothwave_base_init,
NULL,
- (GClassInitFunc)gst_smoothwave_class_init,
+ (GClassInitFunc) gst_smoothwave_class_init,
NULL,
NULL,
- sizeof(GstSmoothWave),
+ sizeof (GstSmoothWave),
0,
- (GInstanceInitFunc)gst_smoothwave_init,
+ (GInstanceInitFunc) gst_smoothwave_init,
};
- smoothwave_type = g_type_register_static(GST_TYPE_ELEMENT, "GstSmoothWave", &smoothwave_info, 0);
+ smoothwave_type =
+ g_type_register_static (GST_TYPE_ELEMENT, "GstSmoothWave",
+ &smoothwave_info, 0);
}
return smoothwave_type;
}
@@ -90,83 +96,77 @@ gst_smoothwave_base_init (gpointer g_class)
}
static void
-gst_smoothwave_class_init (GstSmoothWaveClass *klass)
+gst_smoothwave_class_init (GstSmoothWaveClass * 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_WIDTH,
- g_param_spec_int("width","width","width",
- G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_HEIGHT,
- g_param_spec_int("height","height","height",
- G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
- g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_WIDGET,
- g_param_spec_object("widget","widget","widget",
- GTK_TYPE_WIDGET,G_PARAM_READABLE)); /* CHECKME! */
+ g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_WIDTH, g_param_spec_int ("width", "width", "width", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); /* CHECKME */
+ g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_HEIGHT, g_param_spec_int ("height", "height", "height", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); /* CHECKME */
+ g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_WIDGET, g_param_spec_object ("widget", "widget", "widget", GTK_TYPE_WIDGET, G_PARAM_READABLE)); /* CHECKME! */
gobject_class->set_property = gst_smoothwave_set_property;
gobject_class->get_property = gst_smoothwave_get_property;
}
static void
-gst_smoothwave_init (GstSmoothWave *smoothwave)
+gst_smoothwave_init (GstSmoothWave * smoothwave)
{
int i;
guint32 palette[256];
- smoothwave->sinkpad = gst_pad_new("sink",GST_PAD_SINK);
- gst_element_add_pad(GST_ELEMENT(smoothwave),smoothwave->sinkpad);
- gst_pad_set_chain_function(smoothwave->sinkpad,gst_smoothwave_chain);
- smoothwave->srcpad = gst_pad_new("src",GST_PAD_SRC);
- gst_element_add_pad(GST_ELEMENT(smoothwave),smoothwave->srcpad);
+ smoothwave->sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
+ gst_element_add_pad (GST_ELEMENT (smoothwave), smoothwave->sinkpad);
+ gst_pad_set_chain_function (smoothwave->sinkpad, gst_smoothwave_chain);
+ smoothwave->srcpad = gst_pad_new ("src", GST_PAD_SRC);
+ gst_element_add_pad (GST_ELEMENT (smoothwave), smoothwave->srcpad);
/* smoothwave->meta = NULL; */
smoothwave->width = 512;
smoothwave->height = 256;
- gdk_rgb_init();
+ gdk_rgb_init ();
/* gtk_widget_set_default_colormap (gdk_rgb_get_cmap()); */
/* gtk_widget_set_default_visual (gdk_rgb_get_visual()); */
/* GST_DEBUG ("creating palette"); */
- for (i=0;i<256;i++)
+ for (i = 0; i < 256; i++)
palette[i] = (i << 16) || (i << 8);
/* GST_DEBUG ("creating cmap"); */
- smoothwave->cmap = gdk_rgb_cmap_new(palette,256);
+ smoothwave->cmap = gdk_rgb_cmap_new (palette, 256);
/* GST_DEBUG ("created cmap"); */
/* gtk_widget_set_default_colormap (smoothwave->cmap); */
- smoothwave->image = gtk_drawing_area_new();
- gtk_drawing_area_size(GTK_DRAWING_AREA(smoothwave->image),
- smoothwave->width,smoothwave->height);
- gtk_widget_show(smoothwave->image);
+ smoothwave->image = gtk_drawing_area_new ();
+ gtk_drawing_area_size (GTK_DRAWING_AREA (smoothwave->image),
+ smoothwave->width, smoothwave->height);
+ gtk_widget_show (smoothwave->image);
- smoothwave->imagebuffer = g_malloc(smoothwave->width*smoothwave->height);
- memset(smoothwave->imagebuffer,0,smoothwave->width*smoothwave->height);
+ smoothwave->imagebuffer = g_malloc (smoothwave->width * smoothwave->height);
+ memset (smoothwave->imagebuffer, 0, smoothwave->width * smoothwave->height);
}
static void
-gst_smoothwave_chain (GstPad *pad, GstData *_data)
+gst_smoothwave_chain (GstPad * pad, GstData * _data)
{
GstBuffer *buf = GST_BUFFER (_data);
GstSmoothWave *smoothwave;
gint16 *samples;
- gint samplecount,i;
+ gint samplecount, i;
register guint32 *ptr;
gint qheight;
- 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);
/* g_return_if_fail(GST_IS_BUFFER(buf)); */
- smoothwave = GST_SMOOTHWAVE(GST_OBJECT_PARENT (pad));
+ smoothwave = GST_SMOOTHWAVE (GST_OBJECT_PARENT (pad));
/* first deal with audio metadata */
#if 0
@@ -175,36 +175,35 @@ gst_smoothwave_chain (GstPad *pad, GstData *_data)
/* FIXME: need to unref the old metadata so it goes away */
}
/* we just make a copy of the pointer */
- smoothwave->meta = (MetaAudioRaw *)(buf->meta);
+ smoothwave->meta = (MetaAudioRaw *) (buf->meta);
/* FIXME: now we have to ref the metadata so it doesn't go away */
}
#endif
/* g_return_if_fail(smoothwave->meta != NULL); */
- samples = (gint16 *)GST_BUFFER_DATA(buf);
+ samples = (gint16 *) GST_BUFFER_DATA (buf);
/* samplecount = buf->datasize / (smoothwave->meta->channels * sizeof(gint16)); */
- samplecount = GST_BUFFER_SIZE(buf) / (2 * sizeof(gint16));
+ samplecount = GST_BUFFER_SIZE (buf) / (2 * sizeof (gint16));
- qheight = smoothwave->height/4;
+ qheight = smoothwave->height / 4;
/* GST_DEBUG ("traversing %d",smoothwave->width); */
- for (i=0;i<MAX(smoothwave->width,samplecount);i++) {
- gint16 y1 = (gint32)(samples[i*2] * qheight) / 32768 +
- qheight;
- gint16 y2 = (gint32)(samples[(i*2)+1] * qheight) / 32768 +
- (qheight*3);
- smoothwave->imagebuffer[y1*smoothwave->width + i] = 0xff;
- smoothwave->imagebuffer[y2*smoothwave->width + i] = 0xff;
+ for (i = 0; i < MAX (smoothwave->width, samplecount); i++) {
+ gint16 y1 = (gint32) (samples[i * 2] * qheight) / 32768 + qheight;
+ gint16 y2 = (gint32) (samples[(i * 2) + 1] * qheight) / 32768 +
+ (qheight * 3);
+ smoothwave->imagebuffer[y1 * smoothwave->width + i] = 0xff;
+ smoothwave->imagebuffer[y2 * smoothwave->width + i] = 0xff;
/* smoothwave->imagebuffer[i+(smoothwave->width*5)] = i; */
}
- ptr = (guint32 *)smoothwave->imagebuffer;
- for (i=0;i<(smoothwave->width*smoothwave->height)/4;i++) {
- if (*ptr){
+ ptr = (guint32 *) smoothwave->imagebuffer;
+ for (i = 0; i < (smoothwave->width * smoothwave->height) / 4; i++) {
+ if (*ptr) {
*ptr -= ((*ptr & 0xf0f0f0f0ul) >> 4) + ((*ptr & 0xe0e0e0e0ul) >> 5);
ptr++;
- }else{
+ } else {
ptr++;
}
}
@@ -223,40 +222,40 @@ gst_smoothwave_chain (GstPad *pad, GstData *_data)
GDK_RGB_DITHER_NONE,
smoothwave->imagebuffer,smoothwave->width,
smoothwave->cmap);*/
- gdk_draw_gray_image(smoothwave->image->window,
- smoothwave->image->style->fg_gc[GTK_STATE_NORMAL],
- 0,0,smoothwave->width,smoothwave->height,
- GDK_RGB_DITHER_NORMAL,
- smoothwave->imagebuffer,smoothwave->width);
+ gdk_draw_gray_image (smoothwave->image->window,
+ smoothwave->image->style->fg_gc[GTK_STATE_NORMAL],
+ 0, 0, smoothwave->width, smoothwave->height,
+ GDK_RGB_DITHER_NORMAL, smoothwave->imagebuffer, smoothwave->width);
/* gst_trace_add_entry(NULL,0,buf,"smoothwave: calculated smoothwave"); */
- gst_buffer_unref(buf);
+ gst_buffer_unref (buf);
}
static void
-gst_smoothwave_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
+gst_smoothwave_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
{
GstSmoothWave *smoothwave;
/* it's not null if we got it, but it might not be ours */
- g_return_if_fail(GST_IS_SMOOTHWAVE(object));
- smoothwave = GST_SMOOTHWAVE(object);
+ g_return_if_fail (GST_IS_SMOOTHWAVE (object));
+ smoothwave = GST_SMOOTHWAVE (object);
switch (prop_id) {
case ARG_WIDTH:
smoothwave->width = g_value_get_int (value);
- gtk_drawing_area_size(GTK_DRAWING_AREA(smoothwave->image),
- smoothwave->width,smoothwave->height);
- gtk_widget_set_usize(GTK_WIDGET(smoothwave->image),
- smoothwave->width,smoothwave->height);
+ gtk_drawing_area_size (GTK_DRAWING_AREA (smoothwave->image),
+ smoothwave->width, smoothwave->height);
+ gtk_widget_set_usize (GTK_WIDGET (smoothwave->image),
+ smoothwave->width, smoothwave->height);
break;
case ARG_HEIGHT:
smoothwave->height = g_value_get_int (value);
- gtk_drawing_area_size(GTK_DRAWING_AREA(smoothwave->image),
- smoothwave->width,smoothwave->height);
- gtk_widget_set_usize(GTK_WIDGET(smoothwave->image),
- smoothwave->width,smoothwave->height);
+ gtk_drawing_area_size (GTK_DRAWING_AREA (smoothwave->image),
+ smoothwave->width, smoothwave->height);
+ gtk_widget_set_usize (GTK_WIDGET (smoothwave->image),
+ smoothwave->width, smoothwave->height);
break;
default:
break;
@@ -264,27 +263,28 @@ gst_smoothwave_set_property (GObject *object, guint prop_id, const GValue *value
}
static void
-gst_smoothwave_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+gst_smoothwave_get_property (GObject * object, guint prop_id, GValue * value,
+ GParamSpec * pspec)
{
GstSmoothWave *smoothwave;
/* it's not null if we got it, but it might not be ours */
- smoothwave = GST_SMOOTHWAVE(object);
+ smoothwave = GST_SMOOTHWAVE (object);
switch (prop_id) {
- case ARG_WIDTH: {
+ case ARG_WIDTH:{
g_value_set_int (value, smoothwave->width);
break;
}
- case ARG_HEIGHT: {
+ case ARG_HEIGHT:{
g_value_set_int (value, smoothwave->height);
break;
}
- case ARG_WIDGET: {
+ case ARG_WIDGET:{
g_value_set_object (value, smoothwave->image);
break;
}
- default: {
+ default:{
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
@@ -294,21 +294,17 @@ gst_smoothwave_get_property (GObject *object, guint prop_id, GValue *value, GPar
static gboolean
-plugin_init (GstPlugin *plugin)
+plugin_init (GstPlugin * plugin)
{
- if (!gst_element_register (plugin, "smoothwave", GST_RANK_NONE, GST_TYPE_SMOOTHWAVE))
+ if (!gst_element_register (plugin, "smoothwave", GST_RANK_NONE,
+ GST_TYPE_SMOOTHWAVE))
return FALSE;
return TRUE;
}
-GST_PLUGIN_DEFINE (
- GST_VERSION_MAJOR,
- GST_VERSION_MINOR,
- "smoothwave",
- "Fading greyscale waveform display",
- plugin_init,
- VERSION,
- "LGPL",
- GST_PACKAGE,
- GST_ORIGIN)
+GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
+ GST_VERSION_MINOR,
+ "smoothwave",
+ "Fading greyscale waveform display",
+ plugin_init, VERSION, "LGPL", GST_PACKAGE, GST_ORIGIN)
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-28 16:57:09 +0000