Added gst-plugins-base-subtitles0.10-0.10.34 for Meego Harmattan 1.2

[mafwsubrenderer] / gst-plugins-base-subtitles0.10 / ext / gio / gstgiostreamsrc.c

diff --git a/gst-plugins-base-subtitles0.10/ext/gio/gstgiostreamsrc.c b/gst-plugins-base-subtitles0.10/ext/gio/gstgiostreamsrc.c
new file mode 100644 (file)
index 0000000..bd6c686
--- /dev/null
+++ b/gst-plugins-base-subtitles0.10/ext/gio/gstgiostreamsrc.c
@@ -0,0 +1,191 @@
+/* GStreamer
+ *
+ * Copyright (C) 2007 Rene Stadler <mail@renestadler.de>
+ * Copyright (C) 2007-2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
+ * 
+ * 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.
+ */
+
+/**
+ * SECTION:element-giostreamsrc
+ *
+ * This plugin reads data from a custom GIO #GInputStream.
+ *
+ * It can, for example, be used to read data from memory with a
+ * #GMemoryInputStream or to read from a file with a
+ * #GFileInputStream.
+ *
+ * <refsect2>
+ * <title>Example code</title>
+ * <para>
+ * The following example reads data from a #GMemoryInputStream.
+ * |[
+
+#include &lt;gst/gst.h&gt;
+#include &lt;gio/gio.h&gt;
+
+...
+
+GstElement *src;
+GMemoryInputStream *stream;
+// in_data will contain the data to send
+guint8 *in_data;
+gint i;
+
+...
+in_data = g_new (guint8, 512);
+for (i = 0; i < 512; i++)
+  in_data[i] = i % 256;
+
+stream = G_MEMORY_INPUT_STREAM (g_memory_input_stream_new_from_data (in_data, 512,
+          (GDestroyNotify) g_free));
+src = gst_element_factory_make ("giostreamsrc", "src");
+g_object_set (G_OBJECT (src), "stream", stream, NULL);
+
+...
+
+ * ]|
+ * </para>
+ * </refsect2>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "gstgiostreamsrc.h"
+
+GST_DEBUG_CATEGORY_STATIC (gst_gio_stream_src_debug);
+#define GST_CAT_DEFAULT gst_gio_stream_src_debug
+
+enum
+{
+  PROP_0,
+  PROP_STREAM
+};
+
+GST_BOILERPLATE (GstGioStreamSrc, gst_gio_stream_src, GstGioBaseSrc,
+    GST_TYPE_GIO_BASE_SRC);
+
+static void gst_gio_stream_src_finalize (GObject * object);
+static void gst_gio_stream_src_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec);
+static void gst_gio_stream_src_get_property (GObject * object, guint prop_id,
+    GValue * value, GParamSpec * pspec);
+static GInputStream *gst_gio_stream_src_get_stream (GstGioBaseSrc * bsrc);
+
+static void
+gst_gio_stream_src_base_init (gpointer gclass)
+{
+  GstElementClass *element_class = GST_ELEMENT_CLASS (gclass);
+
+  GST_DEBUG_CATEGORY_INIT (gst_gio_stream_src_debug, "gio_stream_src", 0,
+      "GIO source");
+
+  gst_element_class_set_details_simple (element_class, "GIO stream source",
+      "Source",
+      "Read from any GIO stream",
+      "Sebastian Dröge <sebastian.droege@collabora.co.uk>");
+}
+
+static void
+gst_gio_stream_src_class_init (GstGioStreamSrcClass * klass)
+{
+  GObjectClass *gobject_class = (GObjectClass *) klass;
+  GstGioBaseSrcClass *gstgiobasesrc_class = (GstGioBaseSrcClass *) klass;
+
+  gobject_class->finalize = gst_gio_stream_src_finalize;
+  gobject_class->set_property = gst_gio_stream_src_set_property;
+  gobject_class->get_property = gst_gio_stream_src_get_property;
+
+  g_object_class_install_property (gobject_class, PROP_STREAM,
+      g_param_spec_object ("stream", "Stream", "Stream to read from",
+          G_TYPE_INPUT_STREAM, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+  gstgiobasesrc_class->get_stream =
+      GST_DEBUG_FUNCPTR (gst_gio_stream_src_get_stream);
+}
+
+static void
+gst_gio_stream_src_init (GstGioStreamSrc * src, GstGioStreamSrcClass * gclass)
+{
+}
+
+static void
+gst_gio_stream_src_finalize (GObject * object)
+{
+  GstGioStreamSrc *src = GST_GIO_STREAM_SRC (object);
+
+  if (src->stream) {
+    g_object_unref (src->stream);
+    src->stream = NULL;
+  }
+
+  GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (object));
+}
+
+static void
+gst_gio_stream_src_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec)
+{
+  GstGioStreamSrc *src = GST_GIO_STREAM_SRC (object);
+
+  switch (prop_id) {
+    case PROP_STREAM:{
+      GObject *stream;
+
+      if (GST_STATE (src) == GST_STATE_PLAYING ||
+          GST_STATE (src) == GST_STATE_PAUSED) {
+        GST_WARNING
+            ("Setting a new stream not supported in PLAYING or PAUSED state");
+        break;
+      }
+
+      stream = g_value_dup_object (value);
+      if (src->stream)
+        g_object_unref (src->stream);
+      src->stream = G_INPUT_STREAM (stream);
+      break;
+    }
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static void
+gst_gio_stream_src_get_property (GObject * object, guint prop_id,
+    GValue * value, GParamSpec * pspec)
+{
+  GstGioStreamSrc *src = GST_GIO_STREAM_SRC (object);
+
+  switch (prop_id) {
+    case PROP_STREAM:
+      g_value_set_object (value, src->stream);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static GInputStream *
+gst_gio_stream_src_get_stream (GstGioBaseSrc * bsrc)
+{
+  GstGioStreamSrc *src = GST_GIO_STREAM_SRC (bsrc);
+
+  return (src->stream) ? g_object_ref (src->stream) : NULL;
+}