gst-libs/gst/app/: Add GstAppBuffer that includes a callback and closure for proper handling of data chunks.

Original commit message from CVS:
* gst-libs/gst/app/Makefile.am:
* gst-libs/gst/app/gstappbuffer.c:
* gst-libs/gst/app/gstappbuffer.h:
* gst-libs/gst/app/gstappsrc.c:
Add GstAppBuffer that includes a callback and closure for
proper handling of data chunks.

gst-libs/gst/app/Makefile.am

@@ -1,6 +1,6 @@
 lib_LTLIBRARIES = libgstapp-@GST_MAJORMINOR@.la
 
-libgstapp_@GST_MAJORMINOR@_la_SOURCES = gstappsrc.c
+libgstapp_@GST_MAJORMINOR@_la_SOURCES = gstappsrc.c gstappbuffer.c
 libgstapp_@GST_MAJORMINOR@_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS) \
 	$(GST_PLUGINS_BASE_CFLAGS)
 libgstapp_@GST_MAJORMINOR@_la_LIBADD = $(GST_BASE_LIBS)

gst-libs/gst/app/gstappbuffer.c

@@ -0,0 +1,106 @@
+/* GStreamer
+ * Copyright (C) 2007 David Schleef <ds@schleef.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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gst/gst.h>
+#include <gst/base/gstpushsrc.h>
+
+#include <string.h>
+
+#include "gstappbuffer.h"
+
+static void gst_app_buffer_init (GstAppBuffer * buffer, gpointer g_class);
+static void gst_app_buffer_class_init (gpointer g_class, gpointer class_data);
+static void gst_app_buffer_finalize (GstAppBuffer * buffer);
+
+static GstBufferClass *parent_class;
+
+GType
+gst_app_buffer_get_type (void)
+{
+  static GType _gst_app_buffer_type;
+
+  if (G_UNLIKELY (_gst_app_buffer_type == 0)) {
+    static const GTypeInfo app_buffer_info = {
+      sizeof (GstBufferClass),
+      NULL,
+      NULL,
+      gst_app_buffer_class_init,
+      NULL,
+      NULL,
+      sizeof (GstAppBuffer),
+      0,
+      (GInstanceInitFunc) gst_app_buffer_init,
+      NULL
+    };
+    _gst_app_buffer_type = g_type_register_static (GST_TYPE_BUFFER,
+        "GstAppBuffer", &app_buffer_info, 0);
+  }
+  return _gst_app_buffer_type;
+}
+
+static void
+gst_app_buffer_init (GstAppBuffer * buffer, gpointer g_class)
+{
+
+}
+
+static void
+gst_app_buffer_class_init (gpointer g_class, gpointer class_data)
+{
+  GstMiniObjectClass *mini_object_class = GST_MINI_OBJECT_CLASS (g_class);
+
+  mini_object_class->finalize =
+      (GstMiniObjectFinalizeFunction) gst_app_buffer_finalize;
+
+  parent_class = g_type_class_peek_parent (g_class);
+}
+
+static void
+gst_app_buffer_finalize (GstAppBuffer * buffer)
+{
+  g_return_if_fail (buffer != NULL);
+  g_return_if_fail (GST_IS_APP_BUFFER (buffer));
+
+  if (buffer->finalize) {
+    buffer->finalize (buffer->priv);
+  }
+
+  GST_MINI_OBJECT_CLASS (parent_class)->finalize (GST_MINI_OBJECT (buffer));
+}
+
+GstBuffer *
+gst_app_buffer_new (void *data, int length,
+    GstAppBufferFinalizeFunc finalize, void *priv)
+{
+  GstAppBuffer *buffer;
+
+  buffer = (GstAppBuffer *) gst_mini_object_new (GST_TYPE_APP_BUFFER);
+
+  GST_BUFFER_DATA (buffer) = data;
+  GST_BUFFER_SIZE (buffer) = length;
+
+  buffer->finalize = finalize;
+  buffer->priv = priv;
+
+  return GST_BUFFER (buffer);
+}

gst-libs/gst/app/gstappbuffer.h

@@ -0,0 +1,64 @@
+/* GStreamer
+ * Copyright (C) 2007 David Schleef <ds@schleef.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.
+ */
+
+#ifndef _GST_APP_BUFFER_H_
+#define _GST_APP_BUFFER_H_
+
+#include <gst/gst.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_APP_BUFFER \
+  (gst_app_buffer_get_type())
+#define GST_APP_BUFFER(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_APP_BUFFER,GstAppBuffer))
+#define GST_APP_BUFFER_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_APP_BUFFER,GstAppBufferClass))
+#define GST_IS_APP_BUFFER(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_APP_BUFFER))
+#define GST_IS_APP_BUFFER_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_APP_BUFFER))
+
+typedef struct _GstAppBuffer GstAppBuffer;
+typedef struct _GstAppBufferClass GstAppBufferClass;
+typedef void (*GstAppBufferFinalizeFunc) (void *priv);
+
+struct _GstAppBuffer
+{
+  GstBuffer buffer;
+
+  /*< private >*/
+  GstAppBufferFinalizeFunc finalize;
+  void *priv;
+};
+
+struct _GstAppBufferClass
+{
+  GstBufferClass buffer_class;
+};
+
+GType gst_app_buffer_get_type(void);
+
+GstBuffer *gst_app_buffer_new (void *data, int length,
+    GstAppBufferFinalizeFunc finalize, void *priv);
+
+G_END_DECLS
+
+#endif
+

gst-libs/gst/app/gstappsrc.c

@@ -114,6 +114,8 @@ gst_app_src_dispose (GObject * obj)
     g_queue_free (appsrc->queue);
     appsrc->queue = NULL;
   }
+
+  G_OBJECT_CLASS (parent_class)->dispose (obj);
 }
 
 static void