Added a goom plugin (goom.sourceforge.net) to test: ./gst-launch filesrc location=/opt/data/south.mp3 ! mad ! tee sil...

Original commit message from CVS:
Added a goom plugin (goom.sourceforge.net)

to test:
./gst-launch filesrc location=/opt/data/south.mp3 ! mad ! tee silent=true src%d! goom ! colorspace ! xvideosink  tee0.src%d! osssink

1 files changed, 341 insertions, 0 deletions

diff --git a/gst/goom/gstgoom.c b/gst/goom/gstgoom.c
new file mode 100644
index 00000000..c0513524
--- /dev/null
+++ b/gst/goom/gstgoom.c
@@ -0,0 +1,341 @@
+/* gstgoom.c: implementation of goom drawing element
+ * Copyright (C) <2001> Richard Boulton <richard@tartarus.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <config.h>
+#include <gst/gst.h>
+
+#include "goom_core.h"
+
+#define GST_TYPE_GOOM (gst_goom_get_type())
+#define GST_GOOM(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GOOM,GstGOOM))
+#define GST_GOOM_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GOOM,GstGOOM))
+#define GST_IS_GOOM(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GOOM))
+#define GST_IS_GOOM_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GOOM))
+
+typedef struct _GstGOOM GstGOOM;
+typedef struct _GstGOOMClass GstGOOMClass;
+
+struct _GstGOOM {
+  GstElement element;
+
+  /* pads */
+  GstPad *sinkpad,*srcpad;
+  GstBufferPool *peerpool;
+
+  // the timestamp of the next frame
+  guint64 next_time;
+
+  // video state
+  gint bpp;
+  gint depth;
+  gint width;
+  gint height;
+  gboolean first_buffer;
+
+  gint samplerate;
+  gint framerate; // desired frame rate
+  gint samples_between_frames; // number of samples between start of successive frames
+  gint samples_since_last_frame; // number of samples between start of successive frames
+};
+
+struct _GstGOOMClass {
+  GstElementClass parent_class;
+};
+
+GType gst_goom_get_type(void);
+
+
+/* elementfactory information */
+static GstElementDetails gst_goom_details = {
+  "GOOM: what a GOOM!",
+  "Filter/Visualization",
+  "Takes frames of data and outputs video frames using the GOOM filter",
+  VERSION,
+  "Wim Taymans <wim.taymans@chello.be>",
+  "(C) 2002",
+};
+
+/* signals and args */
+enum {
+  /* FILL ME */
+  LAST_SIGNAL
+};
+
+enum {
+  ARG_0,
+  /* FILL ME */
+};
+
+GST_PADTEMPLATE_FACTORY (src_template,
+  "src",
+  GST_PAD_SRC,
+  GST_PAD_ALWAYS,
+  GST_CAPS_NEW (
+    "goomsrc",
+    "video/raw",
+      "format",		GST_PROPS_FOURCC (GST_STR_FOURCC ("RGB ")),
+      "bpp",		GST_PROPS_INT (32),
+      "depth",		GST_PROPS_INT (32),
+      "endianness", 	GST_PROPS_INT (G_BYTE_ORDER),
+      "red_mask",   	GST_PROPS_INT (0xff0000),
+      "green_mask", 	GST_PROPS_INT (0xff00),
+      "blue_mask",  	GST_PROPS_INT (0xff),
+      "width",		GST_PROPS_INT_RANGE (16, 4096),
+      "height",		GST_PROPS_INT_RANGE (16, 4096)
+  )
+)
+
+GST_PADTEMPLATE_FACTORY (sink_template,
+  "sink",					/* the name of the pads */
+  GST_PAD_SINK,				/* type of the pad */
+  GST_PAD_ALWAYS,				/* ALWAYS/SOMETIMES */
+  GST_CAPS_NEW (
+    "goomsink",				/* the name of the caps */
+    "audio/raw",				/* the mime type of the caps */
+       /* Properties follow: */
+      "format",     GST_PROPS_STRING ("int"),
+      "law",        GST_PROPS_INT (0),
+      "endianness", GST_PROPS_INT (G_BYTE_ORDER),
+      "signed",     GST_PROPS_BOOLEAN (TRUE),
+      "width",      GST_PROPS_INT (16),
+      "depth",      GST_PROPS_INT (16),
+      "rate",       GST_PROPS_INT_RANGE (8000, 96000),
+      "channels",   GST_PROPS_INT (1)
+  )
+)
+
+
+static void		gst_goom_class_init	(GstGOOMClass *klass);
+static void		gst_goom_init		(GstGOOM *goom);
+
+static void		gst_goom_set_property	(GObject *object, guint prop_id, 
+						 const GValue *value, GParamSpec *pspec);
+static void		gst_goom_get_property	(GObject *object, guint prop_id, 
+						 GValue *value, GParamSpec *pspec);
+
+static void		gst_goom_chain		(GstPad *pad, GstBuffer *buf);
+
+static GstPadConnectReturn 
+			gst_goom_sinkconnect 	(GstPad *pad, GstCaps *caps);
+
+static GstElementClass *parent_class = NULL;
+
+GType
+gst_goom_get_type (void)
+{
+  static GType type = 0;
+
+  if (!type) {
+    static const GTypeInfo info = {
+      sizeof (GstGOOMClass),      
+      NULL,      
+      NULL,      
+      (GClassInitFunc) gst_goom_class_init,
+      NULL,
+      NULL,
+      sizeof (GstGOOM),
+      0,
+      (GInstanceInitFunc) gst_goom_init,
+    };
+    type = g_type_register_static (GST_TYPE_ELEMENT, "GstGOOM", &info, 0);
+  }
+  return type;
+}
+
+static void
+gst_goom_class_init(GstGOOMClass *klass)
+{
+  GObjectClass *gobject_class;
+  GstElementClass *gstelement_class;
+
+  gobject_class = (GObjectClass*) klass;
+  gstelement_class = (GstElementClass*) klass;
+
+  parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
+
+  gobject_class->set_property = gst_goom_set_property;
+  gobject_class->get_property = gst_goom_get_property;
+}
+
+static void
+gst_goom_init (GstGOOM *goom)
+{
+  /* create the sink and src pads */
+  goom->sinkpad = gst_pad_new_from_template (
+		  GST_PADTEMPLATE_GET (sink_template ), "sink");
+  goom->srcpad = gst_pad_new_from_template (
+		  GST_PADTEMPLATE_GET (src_template ), "src");
+  gst_element_add_pad (GST_ELEMENT (goom), goom->sinkpad);
+  gst_element_add_pad (GST_ELEMENT (goom), goom->srcpad);
+
+  gst_pad_set_chain_function (goom->sinkpad, gst_goom_chain);
+  gst_pad_set_connect_function (goom->sinkpad, gst_goom_sinkconnect);
+
+  goom->next_time = 0;
+  goom->peerpool = NULL;
+
+  // reset the initial video state
+  goom->bpp = 32;
+  goom->depth = 32;
+  goom->first_buffer = TRUE;
+  goom->width = 320;
+  goom->height = 200;
+
+  goom->samplerate = -1;
+  goom->framerate = 25; // desired frame rate
+  goom->samples_between_frames = 0; // number of samples between start of successive frames
+  goom->samples_since_last_frame = 0;
+
+  goom_init (goom->width, goom->height);
+}
+
+static GstPadConnectReturn
+gst_goom_sinkconnect (GstPad *pad, GstCaps *caps)
+{
+  GstGOOM *goom;
+  goom = GST_GOOM (gst_pad_get_parent (pad));
+
+  if (!GST_CAPS_IS_FIXED (caps)) {
+    return GST_PAD_CONNECT_DELAYED;
+  }
+
+  goom->samplerate = gst_caps_get_int (caps, "rate");
+  goom->samples_between_frames = goom->samplerate / goom->framerate;
+
+  GST_DEBUG (0, "GOOM: new sink caps: rate %d\n",
+	     goom->samplerate);
+
+  return GST_PAD_CONNECT_OK;
+}
+
+static void
+gst_goom_chain (GstPad *pad, GstBuffer *bufin)
+{
+  GstGOOM *goom;
+  GstBuffer *bufout;
+  guint32 samples_in;
+  gint16 datain[2][512];
+
+  goom = GST_GOOM (gst_pad_get_parent (pad));
+
+  GST_DEBUG (0, "GOOM: chainfunc called\n");
+
+  samples_in = GST_BUFFER_SIZE (bufin) / sizeof (gint16);
+
+  GST_DEBUG (0, "input buffer has %d samples\n", samples_in);
+
+  if (goom->next_time <= GST_BUFFER_TIMESTAMP (bufin)) {
+    goom->next_time = GST_BUFFER_TIMESTAMP (bufin);
+    GST_DEBUG (0, "in:  %lld\n", GST_BUFFER_TIMESTAMP (bufin));
+  }
+  if (goom->first_buffer) {
+    GstCaps *caps;
+	
+    GST_DEBUG (0, "making new pad\n");
+
+    caps = GST_CAPS_NEW (
+		     "goomsrc",
+		     "video/raw",
+		       "format", 	GST_PROPS_FOURCC (GST_STR_FOURCC ("RGB ")), 
+		       "bpp", 		GST_PROPS_INT (goom->bpp), 
+		       "depth", 	GST_PROPS_INT (goom->depth), 
+		       "endianness", 	GST_PROPS_INT (G_BYTE_ORDER), 
+		       "red_mask", 	GST_PROPS_INT (0xff0000), 
+		       "green_mask", 	GST_PROPS_INT (0x00ff00), 
+		       "blue_mask", 	GST_PROPS_INT (0x0000ff), 
+		       "width", 	GST_PROPS_INT (goom->width), 
+		       "height", 	GST_PROPS_INT (goom->height)
+		   );
+
+    if (!gst_pad_try_set_caps (goom->srcpad, caps)) {
+      gst_element_error (GST_ELEMENT (goom), "could not set caps");
+      return;
+    }
+    goom->first_buffer = FALSE;
+  }
+
+  memcpy (&datain[0][0], GST_BUFFER_DATA (bufin), 512);
+  memcpy (&datain[1][0], GST_BUFFER_DATA (bufin), 512);
+
+  bufout = gst_buffer_new ();
+  GST_BUFFER_DATA (bufout) = (guchar *) goom_update (datain);
+  GST_BUFFER_SIZE (bufout) = goom->width * goom->height * 4;
+  GST_BUFFER_FLAG_SET (bufout, GST_BUFFER_DONTFREE);
+
+  gst_pad_push (goom->srcpad, bufout);
+
+  gst_buffer_unref (bufin);
+
+  GST_DEBUG (0, "GOOM: exiting chainfunc\n");
+}
+
+static void
+gst_goom_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
+{
+  GstGOOM *goom;
+
+  /* it's not null if we got it, but it might not be ours */
+  g_return_if_fail (GST_IS_GOOM (object));
+  goom = GST_GOOM (object);
+
+  switch (prop_id) {
+    default:
+      break;
+  }
+}
+
+static void
+gst_goom_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+{
+  GstGOOM *goom;
+
+  /* it's not null if we got it, but it might not be ours */
+  g_return_if_fail (GST_IS_GOOM (object));
+  goom = GST_GOOM (object);
+
+  switch (prop_id) {
+    default:
+      break;
+  }
+}
+
+static gboolean
+plugin_init (GModule *module, GstPlugin *plugin)
+{
+  GstElementFactory *factory;
+
+  /* create an elementfactory for the goom element */
+  factory = gst_elementfactory_new("goom",GST_TYPE_GOOM,
+                                   &gst_goom_details);
+  g_return_val_if_fail(factory != NULL, FALSE);
+
+  gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (src_template));
+  gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (sink_template));
+
+  gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
+
+  return TRUE;
+}
+
+GstPluginDesc plugin_desc = {
+  GST_VERSION_MAJOR,
+  GST_VERSION_MINOR,
+  "goom",
+  plugin_init
+};