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Update libvisual to 0.1.7. Link in the debug handling to gstreamer

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Original commit message from CVS:
* configure.ac:
* ext/libvisual/visual.c: (gst_visual_get_type),
(libvisual_log_handler), (gst_visual_getcaps),
(gst_visual_srclink), (gst_visual_change_state), (make_valid_name),
(plugin_init):
Update libvisual to 0.1.7. Link in the debug handling to gstreamer
* ext/smoothwave/Makefile.am:
* ext/smoothwave/demo-osssrc.c: (main):
* ext/smoothwave/gstsmoothwave.c: (gst_smoothwave_class_init),
(gst_smoothwave_init), (gst_smoothwave_dispose), (gst_sw_sinklink),
(gst_sw_srclink), (gst_smoothwave_chain), (gst_sw_change_state),
(plugin_init):
* ext/smoothwave/gstsmoothwave.h:
Make gstsmoothwave a working element in the 20th century.
* gst/chart/gstchart.c: (gst_chart_init), (gst_chart_srcconnect):
Fix incorrect link function
This commit is contained in:
Jan Schmidt 2004-11-12 17:37:49 +00:00
parent bf61de8fe0
commit 352cb6fef9
11 changed files with 541 additions and 382 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
ChangeLog
View file

@ -1,3 +1,23 @@
2004-11-13 Jan Schmidt <thaytan@mad.scientist.com>
* configure.ac:
* ext/libvisual/visual.c: (gst_visual_get_type),
(libvisual_log_handler), (gst_visual_getcaps),
(gst_visual_srclink), (gst_visual_change_state), (make_valid_name),
(plugin_init):
Update libvisual to 0.1.7. Link in the debug handling to gstreamer
* ext/smoothwave/Makefile.am:
* ext/smoothwave/demo-osssrc.c: (main):
* ext/smoothwave/gstsmoothwave.c: (gst_smoothwave_class_init),
(gst_smoothwave_init), (gst_smoothwave_dispose), (gst_sw_sinklink),
(gst_sw_srclink), (gst_smoothwave_chain), (gst_sw_change_state),
(plugin_init):
* ext/smoothwave/gstsmoothwave.h:
Make gstsmoothwave a working element in the 20th century.
* gst/chart/gstchart.c: (gst_chart_init), (gst_chart_srcconnect):
Fix incorrect link function
2004-11-12 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
* gst/volume/gstvolume.c:

2
configure.ac
View file

@ -1213,7 +1213,7 @@ GST_CHECK_FEATURE(LIBRFB, [librfb Remote Framebuffer], rfbsrc, [
dnl *** libvisual ***
translit(dnm, m, l) AM_CONDITIONAL(USE_LIBVISUAL, true)
GST_CHECK_FEATURE(LIBVISUAL, [libvisual visualization plugins], libvisual, [
PKG_CHECK_MODULES(LIBVISUAL, libvisual = 0.1.1, HAVE_LIBVISUAL="yes", HAVE_LIBVISUAL="no")
PKG_CHECK_MODULES(LIBVISUAL, libvisual = 0.1.7, HAVE_LIBVISUAL="yes", HAVE_LIBVISUAL="no")
AC_SUBST(LIBVISUAL_CFLAGS)
AC_SUBST(LIBVISUAL_LIBS)
])

7
ext/smoothwave/Makefile.am
View file

@ -2,18 +2,17 @@
plugin_LTLIBRARIES = libgstsmoothwave.la
libgstsmoothwave_la_SOURCES = gstsmoothwave.c
libgstsmoothwave_la_CFLAGS = $(GST_CFLAGS) $(GTK_CFLAGS)
libgstsmoothwave_la_LIBADD = $(GTK_LIBS)
libgstsmoothwave_la_CFLAGS = $(GST_CFLAGS)
libgstsmoothwave_la_LIBADD =
libgstsmoothwave_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
noinst_HEADERS = gstsmoothwave.h
if HAVE_GTK
noinst_PROGRAMS = demo-osssrc
endif
demo_osssrc_SOURCES = demo-osssrc.c
demo_osssrc_CFLAGS = $(GST_CFLAGS) $(GTK_CFLAGS)
demo_osssrc_LDFLAGS = $(GST_LIBS) $(GTK_LIBS)
endif
EXTRA_DIST = README

35
ext/smoothwave/demo-osssrc.c
View file

@ -11,12 +11,9 @@ int
main (int argc, char *argv[])
{
GstElement *bin;
GstElementFactory *srcfactory;
GstElement *src;
GstElementFactory *wavefactory;
GstElement *wave;
GtkWidget *wave_widget;
GtkWidget *appwindow;
GstElement *ximage;
gst_init (&argc, &argv);
gst_plugin_load ("libsmoothwave.so");
@ -24,31 +21,19 @@ main (int argc, char *argv[])
bin = gst_pipeline_new ("bin");
srcfactory = gst_element_factory_find ("sinesrc");
g_return_val_if_fail (srcfactory != NULL, -1);
wavefactory = gst_element_factory_find ("smoothwave");
g_return_val_if_fail (wavefactory != NULL, -1);
src = gst_element_factory_create (srcfactory, "src");
//g_object_set(G_OBJECT(src),"bytes_per_read",(gulong)2048,NULL);
wave = gst_element_factory_create (wavefactory, "wave");
g_object_set (G_OBJECT (wave), "width", 256, "height", 100, NULL);
src = gst_element_factory_make ("sinesrc", "src");
wave = gst_element_factory_make ("smoothwave", "wave");
ximage = gst_element_factory_make ("ximagesink", "sink");
g_return_val_if_fail (src != NULL, -1);
g_return_val_if_fail (wave != NULL, -1);
g_return_val_if_fail (ximage != NULL, -1);
gst_bin_add (GST_BIN (bin), GST_ELEMENT (src));
gst_bin_add (GST_BIN (bin), GST_ELEMENT (wave));
gst_bin_add_many (GST_BIN (bin), src, wave, ximage, NULL);
g_return_val_if_fail (gst_element_link_many (src, wave, ximage,
NULL) != FALSE, -1);
gst_pad_link (gst_element_get_pad (src, "src"),
gst_element_get_pad (wave, "sink"));
appwindow = gtk_window_new (GTK_WINDOW_TOPLEVEL);
g_object_get (G_OBJECT (wave), "widget", &wave_widget, NULL);
gtk_container_add (GTK_CONTAINER (appwindow), wave_widget);
gtk_widget_show_all (appwindow);
gst_element_set_state (GST_ELEMENT (bin), GST_STATE_READY);
gst_element_set_state (GST_ELEMENT (bin), GST_STATE_PLAYING);
g_idle_add (idle_func, bin);
gtk_main ();

386
ext/smoothwave/gstsmoothwave.c
View file

@ -23,6 +23,10 @@
#endif
#include <string.h>
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/audio/audio.h>
#include "gstsmoothwave.h"
static GstElementDetails gst_smoothwave_details =
@ -39,29 +43,58 @@ enum
LAST_SIGNAL
};
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_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_dispose (GObject * object);
static GstElementStateReturn gst_sw_change_state (GstElement * element);
static void gst_smoothwave_chain (GstPad * pad, GstData * _data);
static GstPadLinkReturn gst_sw_sinklink (GstPad * pad, const GstCaps * caps);
static GstPadLinkReturn gst_sw_srclink (GstPad * pad, const GstCaps * caps);
static GstElementClass *parent_class = NULL;
/*static guint gst_smoothwave_signals[LAST_SIGNAL] = { 0 }; */
#if G_BYTE_ORDER == G_BIG_ENDIAN
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw-rgb, "
"bpp = (int) 32, "
"depth = (int) 24, "
"endianness = (int) BIG_ENDIAN, "
"red_mask = (int) " GST_VIDEO_BYTE2_MASK_32 ", "
"green_mask = (int) " GST_VIDEO_BYTE3_MASK_32 ", "
"blue_mask = (int) " GST_VIDEO_BYTE4_MASK_32 ", "
"width = (int)512, "
"height = (int)256, " "framerate = " GST_VIDEO_FPS_RANGE)
);
#else
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw-rgb, "
"bpp = (int) 32, "
"depth = (int) 24, "
"endianness = (int) BIG_ENDIAN, "
"red_mask = (int) " GST_VIDEO_BYTE3_MASK_32 ", "
"green_mask = (int) " GST_VIDEO_BYTE2_MASK_32 ", "
"blue_mask = (int) " GST_VIDEO_BYTE1_MASK_32 ", "
"width = (int)512, "
"height = (int)256, " "framerate = " GST_VIDEO_FPS_RANGE)
);
#endif
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"rate = (int) [ 1, MAX ], "
"channels = (int) [ 1, 2 ], "
"endianness = (int) BYTE_ORDER, "
"width = (int) 16, " "depth = (int) 16, " "signed = (boolean) true")
);
GType
gst_smoothwave_get_type (void)
@ -100,56 +133,111 @@ static void
gst_smoothwave_class_init (GstSmoothWaveClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstElementClass *element_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
element_class = (GstElementClass *) klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
gobject_class->dispose = gst_smoothwave_dispose;
element_class->change_state = gst_sw_change_state;
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;
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template));
}
static void
gst_smoothwave_init (GstSmoothWave * smoothwave)
{
int i;
guint32 palette[256];
smoothwave->sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
smoothwave->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get (&sink_template),
"sink");
smoothwave->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get (&src_template),
"src");
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);
gst_pad_set_link_function (smoothwave->sinkpad, gst_sw_sinklink);
gst_element_add_pad (GST_ELEMENT (smoothwave), smoothwave->srcpad);
gst_pad_set_link_function (smoothwave->srcpad, gst_sw_srclink);
GST_FLAG_SET (smoothwave, GST_ELEMENT_EVENT_AWARE);
smoothwave->adapter = gst_adapter_new ();
/* smoothwave->meta = NULL; */
smoothwave->width = 512;
smoothwave->height = 256;
gdk_rgb_init ();
/* gtk_widget_set_default_colormap (gdk_rgb_get_cmap()); */
/* gtk_widget_set_default_visual (gdk_rgb_get_visual()); */
#define SPLIT_PT 96
/* GST_DEBUG ("creating palette"); */
for (i = 0; i < 256; i++)
palette[i] = (i << 16) || (i << 8);
/* GST_DEBUG ("creating cmap"); */
smoothwave->cmap = gdk_rgb_cmap_new (palette, 256);
/* GST_DEBUG ("created cmap"); */
/* gtk_widget_set_default_colormap (smoothwave->cmap); */
/* Fade in blue up to the split point */
for (i = 0; i < SPLIT_PT; i++)
smoothwave->palette[i] = (255 * i / SPLIT_PT);
smoothwave->image = gtk_drawing_area_new ();
gtk_drawing_area_size (GTK_DRAWING_AREA (smoothwave->image),
smoothwave->width, smoothwave->height);
gtk_widget_show (smoothwave->image);
/* After the split point, fade out blue and fade in red */
for (; i < 256; i++) {
gint val = (i - SPLIT_PT) * 255 / (255 - SPLIT_PT);
smoothwave->palette[i] = (255 - val) | (val << 16);
}
smoothwave->imagebuffer = g_malloc (smoothwave->width * smoothwave->height);
memset (smoothwave->imagebuffer, 0, smoothwave->width * smoothwave->height);
smoothwave->fps = 0;
smoothwave->sample_rate = 0;
smoothwave->audio_basetime = GST_CLOCK_TIME_NONE;
smoothwave->samples_consumed = 0;
}
static void
gst_smoothwave_dispose (GObject * object)
{
GstSmoothWave *sw = GST_SMOOTHWAVE (object);
if (sw->adapter != NULL) {
g_object_unref (sw->adapter);
sw->adapter = NULL;
}
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static GstPadLinkReturn
gst_sw_sinklink (GstPad * pad, const GstCaps * caps)
{
GstSmoothWave *sw = GST_SMOOTHWAVE (GST_OBJECT_PARENT (pad));
GstStructure *structure;
g_return_val_if_fail (sw != NULL, GST_PAD_LINK_REFUSED);
structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (structure, "channels", &sw->channels) ||
!gst_structure_get_int (structure, "rate", &sw->sample_rate))
return GST_PAD_LINK_REFUSED;
return GST_PAD_LINK_OK;
}
static GstPadLinkReturn
gst_sw_srclink (GstPad * pad, const GstCaps * caps)
{
GstSmoothWave *sw = GST_SMOOTHWAVE (GST_OBJECT_PARENT (pad));
GstStructure *structure;
g_return_val_if_fail (sw != NULL, GST_PAD_LINK_REFUSED);
structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (structure, "width", &sw->width) ||
!gst_structure_get_int (structure, "height", &sw->height) ||
!gst_structure_get_double (structure, "framerate", &sw->fps))
return GST_PAD_LINK_REFUSED;
return GST_PAD_LINK_OK;
}
static void
@ -157,146 +245,140 @@ gst_smoothwave_chain (GstPad * pad, GstData * _data)
{
GstBuffer *buf = GST_BUFFER (_data);
GstSmoothWave *smoothwave;
gint16 *samples;
gint samplecount, i;
register guint32 *ptr;
guint32 bytesperread;
gint samples_per_frame;
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(GST_IS_BUFFER(buf)); */
smoothwave = GST_SMOOTHWAVE (GST_OBJECT_PARENT (pad));
/* first deal with audio metadata */
#if 0
if (buf->meta) {
if (smoothwave->meta != NULL) {
/* FIXME: need to unref the old metadata so it goes away */
if (GST_IS_EVENT (_data)) {
GstEvent *event = GST_EVENT (_data);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_DISCONTINUOUS:
{
gint64 value = 0;
gst_event_discont_get_value (event, GST_FORMAT_TIME, &value);
gst_adapter_clear (smoothwave->adapter);
smoothwave->audio_basetime = value;
smoothwave->samples_consumed = 0;
}
default:
gst_pad_event_default (pad, event);
break;
}
/* we just make a copy of the pointer */
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);
/* samplecount = buf->datasize / (smoothwave->meta->channels * sizeof(gint16)); */
samplecount = GST_BUFFER_SIZE (buf) / (2 * sizeof (gint16));
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;
/* smoothwave->imagebuffer[i+(smoothwave->width*5)] = i; */
return;
}
ptr = (guint32 *) smoothwave->imagebuffer;
for (i = 0; i < (smoothwave->width * smoothwave->height) / 4; i++) {
if (*ptr) {
*ptr -= ((*ptr & 0xf0f0f0f0ul) >> 4) + ((*ptr & 0xe0e0e0e0ul) >> 5);
ptr++;
if (!GST_PAD_IS_USABLE (smoothwave->srcpad)) {
gst_buffer_unref (buf);
return;
}
if (smoothwave->audio_basetime == GST_CLOCK_TIME_NONE)
smoothwave->audio_basetime = GST_BUFFER_TIMESTAMP (buf);
if (smoothwave->audio_basetime == GST_CLOCK_TIME_NONE)
smoothwave->audio_basetime = 0;
bytesperread = smoothwave->width * smoothwave->channels * sizeof (gint16);
samples_per_frame = smoothwave->sample_rate / smoothwave->fps;
gst_adapter_push (smoothwave->adapter, buf);
while (gst_adapter_available (smoothwave->adapter) > MAX (bytesperread,
samples_per_frame * smoothwave->channels * sizeof (gint16))) {
const gint16 *samples =
(const guint16 *) gst_adapter_peek (smoothwave->adapter, bytesperread);
register guint32 *ptr;
gint i;
/* First draw the new waveform */
if (smoothwave->channels == 2) {
qheight = smoothwave->height / 4;
for (i = 0; i < smoothwave->width; i++) {
gint16 y1 = (gint32) (samples[i * 2] * qheight) / 32768 + qheight;
gint16 y2 = (gint32) (samples[(i * 2) + 1] * qheight) / 32768 +
(qheight + smoothwave->height / 2);
smoothwave->imagebuffer[y1 * smoothwave->width + i] = 0xff;
smoothwave->imagebuffer[y2 * smoothwave->width + i] = 0xff;
}
} else {
qheight = smoothwave->height / 2;
for (i = 0; i < smoothwave->width; i++) {
gint16 y1 = (gint32) (samples[i] * qheight) / 32768 + qheight;
smoothwave->imagebuffer[y1 * smoothwave->width + i] = 0xff;
}
}
/* Now fade stuff out */
ptr = (guint32 *) smoothwave->imagebuffer;
for (i = 0; i < (smoothwave->width * smoothwave->height) / 4; i++) {
if (*ptr)
*ptr -= ((*ptr & 0xf0f0f0f0ul) >> 4) + ((*ptr & 0xe0e0e0e0ul) >> 5);
ptr++;
}
{
guint32 *out;
guchar *in;
GstBuffer *bufout;
bufout =
gst_buffer_new_and_alloc (smoothwave->width * smoothwave->height * 4);
GST_BUFFER_TIMESTAMP (bufout) =
smoothwave->audio_basetime +
(GST_SECOND * smoothwave->samples_consumed / smoothwave->sample_rate);
GST_BUFFER_DURATION (bufout) = GST_SECOND / smoothwave->fps;
out = (guint32 *) GST_BUFFER_DATA (bufout);
in = smoothwave->imagebuffer;
for (i = 0; i < (smoothwave->width * smoothwave->height); i++) {
// guchar t = *in++;
*out++ = smoothwave->palette[*in++]; // t | (t << 8) | (t << 16) | (t << 24);
}
gst_pad_push (smoothwave->srcpad, GST_DATA (bufout));
}
smoothwave->samples_consumed += samples_per_frame;
gst_adapter_flush (smoothwave->adapter,
samples_per_frame * smoothwave->channels * sizeof (gint16));
}
/* GST_DEBUG ("drawing"); */
/* GST_DEBUG ("gdk_draw_indexed_image(%p,%p,%d,%d,%d,%d,%s,%p,%d,%p);",
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,
smoothwave->cmap);*/
/* gdk_draw_indexed_image(smoothwave->image->window,
smoothwave->image->style->fg_gc[GTK_STATE_NORMAL],
0,0,smoothwave->width,smoothwave->height,
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);
/* gst_trace_add_entry(NULL,0,buf,"smoothwave: calculated smoothwave"); */
gst_buffer_unref (buf);
}
static void
gst_smoothwave_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
static GstElementStateReturn
gst_sw_change_state (GstElement * element)
{
GstSmoothWave *smoothwave;
GstSmoothWave *sw = GST_SMOOTHWAVE (element);
/* 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);
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);
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_NULL_TO_READY:
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);
case GST_STATE_READY_TO_NULL:
break;
case GST_STATE_READY_TO_PAUSED:
sw->audio_basetime = GST_CLOCK_TIME_NONE;
gst_adapter_clear (sw->adapter);
break;
case GST_STATE_PAUSED_TO_READY:
sw->channels = 0;
break;
default:
break;
}
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
}
static void
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);
switch (prop_id) {
case ARG_WIDTH:{
g_value_set_int (value, smoothwave->width);
break;
}
case ARG_HEIGHT:{
g_value_set_int (value, smoothwave->height);
break;
}
case ARG_WIDGET:{
g_value_set_object (value, smoothwave->image);
break;
}
default:{
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
}
static gboolean
plugin_init (GstPlugin * plugin)
{
if (!gst_library_load ("gstbytestream"))
return FALSE;
if (!gst_element_register (plugin, "smoothwave", GST_RANK_NONE,
GST_TYPE_SMOOTHWAVE))
return FALSE;

16
ext/smoothwave/gstsmoothwave.h
View file

@ -23,13 +23,12 @@
#include <gst/gst.h>
#include <gtk/gtk.h>
#include <gst/bytestream/adapter.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define GST_TYPE_SMOOTHWAVE \
(gst_smoothwave_get_type())
#define GST_SMOOTHWAVE(obj) \
@ -48,12 +47,17 @@ struct _GstSmoothWave {
GstElement element;
GstPad *sinkpad,*srcpad;
GstAdapter *adapter;
gint width,height;
GdkRgbCmap *cmap;
GtkWidget *image;
guchar *imagebuffer;
GstClockTime audio_basetime;
guint64 samples_consumed;
gint sample_rate;
gint width,height;
gdouble fps;
gint channels;
guint32 palette[256];
};
struct _GstSmoothWaveClass {

13
gst/chart/gstchart.c
View file

@ -184,7 +184,7 @@ gst_chart_init (GstChart * chart)
gst_pad_set_chain_function (chart->sinkpad, gst_chart_chain);
gst_pad_set_link_function (chart->sinkpad, gst_chart_sinkconnect);
gst_pad_set_link_function (chart->sinkpad, gst_chart_srcconnect);
gst_pad_set_link_function (chart->srcpad, gst_chart_srcconnect);
chart->next_time = 0;
@ -229,13 +229,12 @@ gst_chart_srcconnect (GstPad * pad, const GstCaps * caps)
structure = gst_caps_get_structure (caps, 0);
if (gst_structure_get_double (structure, "framerate", &chart->framerate)) {
chart->samples_between_frames = chart->samplerate / chart->framerate;
}
gst_structure_get_int (structure, "width", &chart->width);
gst_structure_get_int (structure, "height", &chart->height);
if (!gst_structure_get_double (structure, "framerate", &chart->framerate) ||
!gst_structure_get_int (structure, "width", &chart->width) ||
!gst_structure_get_int (structure, "height", &chart->height))
return GST_PAD_LINK_REFUSED;
chart->samples_between_frames = chart->samplerate / chart->framerate;
GST_DEBUG ("CHART: new src caps: framerate %f, %dx%d",
chart->framerate, chart->width, chart->height);

7
gst/smoothwave/Makefile.am
View file

@ -2,18 +2,17 @@
plugin_LTLIBRARIES = libgstsmoothwave.la
libgstsmoothwave_la_SOURCES = gstsmoothwave.c
libgstsmoothwave_la_CFLAGS = $(GST_CFLAGS) $(GTK_CFLAGS)
libgstsmoothwave_la_LIBADD = $(GTK_LIBS)
libgstsmoothwave_la_CFLAGS = $(GST_CFLAGS)
libgstsmoothwave_la_LIBADD =
libgstsmoothwave_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
noinst_HEADERS = gstsmoothwave.h
if HAVE_GTK
noinst_PROGRAMS = demo-osssrc
endif
demo_osssrc_SOURCES = demo-osssrc.c
demo_osssrc_CFLAGS = $(GST_CFLAGS) $(GTK_CFLAGS)
demo_osssrc_LDFLAGS = $(GST_LIBS) $(GTK_LIBS)
endif
EXTRA_DIST = README

35
gst/smoothwave/demo-osssrc.c
View file

@ -11,12 +11,9 @@ int
main (int argc, char *argv[])
{
GstElement *bin;
GstElementFactory *srcfactory;
GstElement *src;
GstElementFactory *wavefactory;
GstElement *wave;
GtkWidget *wave_widget;
GtkWidget *appwindow;
GstElement *ximage;
gst_init (&argc, &argv);
gst_plugin_load ("libsmoothwave.so");
@ -24,31 +21,19 @@ main (int argc, char *argv[])
bin = gst_pipeline_new ("bin");
srcfactory = gst_element_factory_find ("sinesrc");
g_return_val_if_fail (srcfactory != NULL, -1);
wavefactory = gst_element_factory_find ("smoothwave");
g_return_val_if_fail (wavefactory != NULL, -1);
src = gst_element_factory_create (srcfactory, "src");
//g_object_set(G_OBJECT(src),"bytes_per_read",(gulong)2048,NULL);
wave = gst_element_factory_create (wavefactory, "wave");
g_object_set (G_OBJECT (wave), "width", 256, "height", 100, NULL);
src = gst_element_factory_make ("sinesrc", "src");
wave = gst_element_factory_make ("smoothwave", "wave");
ximage = gst_element_factory_make ("ximagesink", "sink");
g_return_val_if_fail (src != NULL, -1);
g_return_val_if_fail (wave != NULL, -1);
g_return_val_if_fail (ximage != NULL, -1);
gst_bin_add (GST_BIN (bin), GST_ELEMENT (src));
gst_bin_add (GST_BIN (bin), GST_ELEMENT (wave));
gst_bin_add_many (GST_BIN (bin), src, wave, ximage, NULL);
g_return_val_if_fail (gst_element_link_many (src, wave, ximage,
NULL) != FALSE, -1);
gst_pad_link (gst_element_get_pad (src, "src"),
gst_element_get_pad (wave, "sink"));
appwindow = gtk_window_new (GTK_WINDOW_TOPLEVEL);
g_object_get (G_OBJECT (wave), "widget", &wave_widget, NULL);
gtk_container_add (GTK_CONTAINER (appwindow), wave_widget);
gtk_widget_show_all (appwindow);
gst_element_set_state (GST_ELEMENT (bin), GST_STATE_READY);
gst_element_set_state (GST_ELEMENT (bin), GST_STATE_PLAYING);
g_idle_add (idle_func, bin);
gtk_main ();

386
gst/smoothwave/gstsmoothwave.c
View file

@ -23,6 +23,10 @@
#endif
#include <string.h>
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/audio/audio.h>
#include "gstsmoothwave.h"
static GstElementDetails gst_smoothwave_details =
@ -39,29 +43,58 @@ enum
LAST_SIGNAL
};
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_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_dispose (GObject * object);
static GstElementStateReturn gst_sw_change_state (GstElement * element);
static void gst_smoothwave_chain (GstPad * pad, GstData * _data);
static GstPadLinkReturn gst_sw_sinklink (GstPad * pad, const GstCaps * caps);
static GstPadLinkReturn gst_sw_srclink (GstPad * pad, const GstCaps * caps);
static GstElementClass *parent_class = NULL;
/*static guint gst_smoothwave_signals[LAST_SIGNAL] = { 0 }; */
#if G_BYTE_ORDER == G_BIG_ENDIAN
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw-rgb, "
"bpp = (int) 32, "
"depth = (int) 24, "
"endianness = (int) BIG_ENDIAN, "
"red_mask = (int) " GST_VIDEO_BYTE2_MASK_32 ", "
"green_mask = (int) " GST_VIDEO_BYTE3_MASK_32 ", "
"blue_mask = (int) " GST_VIDEO_BYTE4_MASK_32 ", "
"width = (int)512, "
"height = (int)256, " "framerate = " GST_VIDEO_FPS_RANGE)
);
#else
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw-rgb, "
"bpp = (int) 32, "
"depth = (int) 24, "
"endianness = (int) BIG_ENDIAN, "
"red_mask = (int) " GST_VIDEO_BYTE3_MASK_32 ", "
"green_mask = (int) " GST_VIDEO_BYTE2_MASK_32 ", "
"blue_mask = (int) " GST_VIDEO_BYTE1_MASK_32 ", "
"width = (int)512, "
"height = (int)256, " "framerate = " GST_VIDEO_FPS_RANGE)
);
#endif
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"rate = (int) [ 1, MAX ], "
"channels = (int) [ 1, 2 ], "
"endianness = (int) BYTE_ORDER, "
"width = (int) 16, " "depth = (int) 16, " "signed = (boolean) true")
);
GType
gst_smoothwave_get_type (void)
@ -100,56 +133,111 @@ static void
gst_smoothwave_class_init (GstSmoothWaveClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstElementClass *element_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
element_class = (GstElementClass *) klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
gobject_class->dispose = gst_smoothwave_dispose;
element_class->change_state = gst_sw_change_state;
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;
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template));
}
static void
gst_smoothwave_init (GstSmoothWave * smoothwave)
{
int i;
guint32 palette[256];
smoothwave->sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
smoothwave->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get (&sink_template),
"sink");
smoothwave->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get (&src_template),
"src");
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);
gst_pad_set_link_function (smoothwave->sinkpad, gst_sw_sinklink);
gst_element_add_pad (GST_ELEMENT (smoothwave), smoothwave->srcpad);
gst_pad_set_link_function (smoothwave->srcpad, gst_sw_srclink);
GST_FLAG_SET (smoothwave, GST_ELEMENT_EVENT_AWARE);
smoothwave->adapter = gst_adapter_new ();
/* smoothwave->meta = NULL; */
smoothwave->width = 512;
smoothwave->height = 256;
gdk_rgb_init ();
/* gtk_widget_set_default_colormap (gdk_rgb_get_cmap()); */
/* gtk_widget_set_default_visual (gdk_rgb_get_visual()); */
#define SPLIT_PT 96
/* GST_DEBUG ("creating palette"); */
for (i = 0; i < 256; i++)
palette[i] = (i << 16) || (i << 8);
/* GST_DEBUG ("creating cmap"); */
smoothwave->cmap = gdk_rgb_cmap_new (palette, 256);
/* GST_DEBUG ("created cmap"); */
/* gtk_widget_set_default_colormap (smoothwave->cmap); */
/* Fade in blue up to the split point */
for (i = 0; i < SPLIT_PT; i++)
smoothwave->palette[i] = (255 * i / SPLIT_PT);
smoothwave->image = gtk_drawing_area_new ();
gtk_drawing_area_size (GTK_DRAWING_AREA (smoothwave->image),
smoothwave->width, smoothwave->height);
gtk_widget_show (smoothwave->image);
/* After the split point, fade out blue and fade in red */
for (; i < 256; i++) {
gint val = (i - SPLIT_PT) * 255 / (255 - SPLIT_PT);
smoothwave->palette[i] = (255 - val) | (val << 16);
}
smoothwave->imagebuffer = g_malloc (smoothwave->width * smoothwave->height);
memset (smoothwave->imagebuffer, 0, smoothwave->width * smoothwave->height);
smoothwave->fps = 0;
smoothwave->sample_rate = 0;
smoothwave->audio_basetime = GST_CLOCK_TIME_NONE;
smoothwave->samples_consumed = 0;
}
static void
gst_smoothwave_dispose (GObject * object)
{
GstSmoothWave *sw = GST_SMOOTHWAVE (object);
if (sw->adapter != NULL) {
g_object_unref (sw->adapter);
sw->adapter = NULL;
}
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static GstPadLinkReturn
gst_sw_sinklink (GstPad * pad, const GstCaps * caps)
{
GstSmoothWave *sw = GST_SMOOTHWAVE (GST_OBJECT_PARENT (pad));
GstStructure *structure;
g_return_val_if_fail (sw != NULL, GST_PAD_LINK_REFUSED);
structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (structure, "channels", &sw->channels) ||
!gst_structure_get_int (structure, "rate", &sw->sample_rate))
return GST_PAD_LINK_REFUSED;
return GST_PAD_LINK_OK;
}
static GstPadLinkReturn
gst_sw_srclink (GstPad * pad, const GstCaps * caps)
{
GstSmoothWave *sw = GST_SMOOTHWAVE (GST_OBJECT_PARENT (pad));
GstStructure *structure;
g_return_val_if_fail (sw != NULL, GST_PAD_LINK_REFUSED);
structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (structure, "width", &sw->width) ||
!gst_structure_get_int (structure, "height", &sw->height) ||
!gst_structure_get_double (structure, "framerate", &sw->fps))
return GST_PAD_LINK_REFUSED;
return GST_PAD_LINK_OK;
}
static void
@ -157,146 +245,140 @@ gst_smoothwave_chain (GstPad * pad, GstData * _data)
{
GstBuffer *buf = GST_BUFFER (_data);
GstSmoothWave *smoothwave;
gint16 *samples;
gint samplecount, i;
register guint32 *ptr;
guint32 bytesperread;
gint samples_per_frame;
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(GST_IS_BUFFER(buf)); */
smoothwave = GST_SMOOTHWAVE (GST_OBJECT_PARENT (pad));
/* first deal with audio metadata */
#if 0
if (buf->meta) {
if (smoothwave->meta != NULL) {
/* FIXME: need to unref the old metadata so it goes away */
if (GST_IS_EVENT (_data)) {
GstEvent *event = GST_EVENT (_data);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_DISCONTINUOUS:
{
gint64 value = 0;
gst_event_discont_get_value (event, GST_FORMAT_TIME, &value);
gst_adapter_clear (smoothwave->adapter);
smoothwave->audio_basetime = value;
smoothwave->samples_consumed = 0;
}
default:
gst_pad_event_default (pad, event);
break;
}
/* we just make a copy of the pointer */
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);
/* samplecount = buf->datasize / (smoothwave->meta->channels * sizeof(gint16)); */
samplecount = GST_BUFFER_SIZE (buf) / (2 * sizeof (gint16));
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;
/* smoothwave->imagebuffer[i+(smoothwave->width*5)] = i; */
return;
}
ptr = (guint32 *) smoothwave->imagebuffer;
for (i = 0; i < (smoothwave->width * smoothwave->height) / 4; i++) {
if (*ptr) {
*ptr -= ((*ptr & 0xf0f0f0f0ul) >> 4) + ((*ptr & 0xe0e0e0e0ul) >> 5);
ptr++;
if (!GST_PAD_IS_USABLE (smoothwave->srcpad)) {
gst_buffer_unref (buf);
return;
}
if (smoothwave->audio_basetime == GST_CLOCK_TIME_NONE)
smoothwave->audio_basetime = GST_BUFFER_TIMESTAMP (buf);
if (smoothwave->audio_basetime == GST_CLOCK_TIME_NONE)
smoothwave->audio_basetime = 0;
bytesperread = smoothwave->width * smoothwave->channels * sizeof (gint16);
samples_per_frame = smoothwave->sample_rate / smoothwave->fps;
gst_adapter_push (smoothwave->adapter, buf);
while (gst_adapter_available (smoothwave->adapter) > MAX (bytesperread,
samples_per_frame * smoothwave->channels * sizeof (gint16))) {
const gint16 *samples =
(const guint16 *) gst_adapter_peek (smoothwave->adapter, bytesperread);
register guint32 *ptr;
gint i;
/* First draw the new waveform */
if (smoothwave->channels == 2) {
qheight = smoothwave->height / 4;
for (i = 0; i < smoothwave->width; i++) {
gint16 y1 = (gint32) (samples[i * 2] * qheight) / 32768 + qheight;
gint16 y2 = (gint32) (samples[(i * 2) + 1] * qheight) / 32768 +
(qheight + smoothwave->height / 2);
smoothwave->imagebuffer[y1 * smoothwave->width + i] = 0xff;
smoothwave->imagebuffer[y2 * smoothwave->width + i] = 0xff;
}
} else {
qheight = smoothwave->height / 2;
for (i = 0; i < smoothwave->width; i++) {
gint16 y1 = (gint32) (samples[i] * qheight) / 32768 + qheight;
smoothwave->imagebuffer[y1 * smoothwave->width + i] = 0xff;
}
}
/* Now fade stuff out */
ptr = (guint32 *) smoothwave->imagebuffer;
for (i = 0; i < (smoothwave->width * smoothwave->height) / 4; i++) {
if (*ptr)
*ptr -= ((*ptr & 0xf0f0f0f0ul) >> 4) + ((*ptr & 0xe0e0e0e0ul) >> 5);
ptr++;
}
{
guint32 *out;
guchar *in;
GstBuffer *bufout;
bufout =
gst_buffer_new_and_alloc (smoothwave->width * smoothwave->height * 4);
GST_BUFFER_TIMESTAMP (bufout) =
smoothwave->audio_basetime +
(GST_SECOND * smoothwave->samples_consumed / smoothwave->sample_rate);
GST_BUFFER_DURATION (bufout) = GST_SECOND / smoothwave->fps;
out = (guint32 *) GST_BUFFER_DATA (bufout);
in = smoothwave->imagebuffer;
for (i = 0; i < (smoothwave->width * smoothwave->height); i++) {
// guchar t = *in++;
*out++ = smoothwave->palette[*in++]; // t | (t << 8) | (t << 16) | (t << 24);
}
gst_pad_push (smoothwave->srcpad, GST_DATA (bufout));
}
smoothwave->samples_consumed += samples_per_frame;
gst_adapter_flush (smoothwave->adapter,
samples_per_frame * smoothwave->channels * sizeof (gint16));
}
/* GST_DEBUG ("drawing"); */
/* GST_DEBUG ("gdk_draw_indexed_image(%p,%p,%d,%d,%d,%d,%s,%p,%d,%p);",
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,
smoothwave->cmap);*/
/* gdk_draw_indexed_image(smoothwave->image->window,
smoothwave->image->style->fg_gc[GTK_STATE_NORMAL],
0,0,smoothwave->width,smoothwave->height,
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);
/* gst_trace_add_entry(NULL,0,buf,"smoothwave: calculated smoothwave"); */
gst_buffer_unref (buf);
}
static void
gst_smoothwave_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
static GstElementStateReturn
gst_sw_change_state (GstElement * element)
{
GstSmoothWave *smoothwave;
GstSmoothWave *sw = GST_SMOOTHWAVE (element);
/* 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);
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);
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_NULL_TO_READY:
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);
case GST_STATE_READY_TO_NULL:
break;
case GST_STATE_READY_TO_PAUSED:
sw->audio_basetime = GST_CLOCK_TIME_NONE;
gst_adapter_clear (sw->adapter);
break;
case GST_STATE_PAUSED_TO_READY:
sw->channels = 0;
break;
default:
break;
}
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
}
static void
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);
switch (prop_id) {
case ARG_WIDTH:{
g_value_set_int (value, smoothwave->width);
break;
}
case ARG_HEIGHT:{
g_value_set_int (value, smoothwave->height);
break;
}
case ARG_WIDGET:{
g_value_set_object (value, smoothwave->image);
break;
}
default:{
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
}
static gboolean
plugin_init (GstPlugin * plugin)
{
if (!gst_library_load ("gstbytestream"))
return FALSE;
if (!gst_element_register (plugin, "smoothwave", GST_RANK_NONE,
GST_TYPE_SMOOTHWAVE))
return FALSE;

16
gst/smoothwave/gstsmoothwave.h
View file

@ -23,13 +23,12 @@
#include <gst/gst.h>
#include <gtk/gtk.h>
#include <gst/bytestream/adapter.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define GST_TYPE_SMOOTHWAVE \
(gst_smoothwave_get_type())
#define GST_SMOOTHWAVE(obj) \
@ -48,12 +47,17 @@ struct _GstSmoothWave {
GstElement element;
GstPad *sinkpad,*srcpad;
GstAdapter *adapter;
gint width,height;
GdkRgbCmap *cmap;
GtkWidget *image;
guchar *imagebuffer;
GstClockTime audio_basetime;
guint64 samples_consumed;
gint sample_rate;
gint width,height;
gdouble fps;
gint channels;
guint32 palette[256];
};
struct _GstSmoothWaveClass {