Add skeleton of rsfilesink

build.rs

@@ -6,7 +6,7 @@ fn main() {
     let gstbase = pkg_config::probe_library("gstreamer-base-1.0").unwrap();
     let includes = [gstreamer.include_paths, gstbase.include_paths];
 
-    let files = ["src/plugin.c", "src/rsfilesrc.c"];
+    let files = ["src/plugin.c", "src/rsfilesrc.c", "src/rsfilesink.c"];
 
     let mut config = gcc::Config::new();
     config.include("src");

src/lib.rs

@@ -3,3 +3,4 @@
 extern crate libc;
 
 pub mod rsfilesrc;
+pub mod rsfilesink;

src/plugin.c

 #include <gst/gst.h>
 
 #include "rsfilesrc.h"
+#include "rsfilesink.h"
 
 static gboolean
 plugin_init (GstPlugin * plugin)
@@ -10,6 +11,11 @@ plugin_init (GstPlugin * plugin)
     return FALSE;
   }
 
+  if (!gst_element_register (plugin, "rsfilesink", GST_RANK_NONE,
+          GST_TYPE_RSFILE_SINK)) {
+    return FALSE;
+  }
+
   return TRUE;
 }
 

src/rsfilesink.c

+#include "rsfilesink.h"
+
+GST_DEBUG_CATEGORY_STATIC (gst_rsfile_sink_debug);
+#define GST_CAT_DEFAULT gst_rsfile_sink_debug
+
+static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS_ANY);
+
+enum
+{
+  PROP_0,
+  PROP_LOCATION
+};
+
+static void gst_rsfile_sink_finalize (GObject * object);
+
+static void gst_rsfile_sink_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec);
+static void gst_rsfile_sink_get_property (GObject * object, guint prop_id,
+    GValue * value, GParamSpec * pspec);
+
+static gboolean gst_rsfile_sink_start (GstBaseSink * basesink);
+static gboolean gst_rsfile_sink_stop (GstBaseSink * basesink);
+static gboolean gst_rsfile_sink_query (GstBaseSink * basesink, GstQuery * query);
+static GstFlowReturn gst_rsfile_sink_render (GstBaseSink * sink, GstBuffer * buffer);
+static gboolean gst_rsfile_sink_event (GstBaseSink * sink, GstEvent * event);
+
+#define _do_init \
+  GST_DEBUG_CATEGORY_INIT (gst_rsfile_sink_debug, "rsfilesink", 0, "rsfilesink element");
+#define gst_rsfile_sink_parent_class parent_class
+G_DEFINE_TYPE_WITH_CODE (GstRsFileSink, gst_rsfile_sink, GST_TYPE_BASE_SINK, _do_init);
+
+static void
+gst_rsfile_sink_class_init (GstRsFileSinkClass * klass)
+{
+  GObjectClass *gobject_class;
+  GstElementClass *gstelement_class;
+  GstBaseSinkClass *gstbasesink_class;
+
+  gobject_class = G_OBJECT_CLASS (klass);
+  gstelement_class = GST_ELEMENT_CLASS (klass);
+  gstbasesink_class = GST_BASE_SINK_CLASS (klass);
+
+  gobject_class->set_property = gst_rsfile_sink_set_property;
+  gobject_class->get_property = gst_rsfile_sink_get_property;
+
+  g_object_class_install_property (gobject_class, PROP_LOCATION,
+      g_param_spec_string ("location", "File Location",
+          "Location of the file to read", NULL,
+          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
+          GST_PARAM_MUTABLE_READY));
+
+  gobject_class->finalize = gst_rsfile_sink_finalize;
+
+  gst_element_class_set_static_metadata (gstelement_class,
+      "File Sink",
+      "Sink/Rsfile",
+      "Write to a file",
+      "Luis de Bethencourt <luisbg@osg.samsung.com>");
+  gst_element_class_add_static_pad_template (gstelement_class, &sink_template);
+
+  gstbasesink_class->start = GST_DEBUG_FUNCPTR (gst_rsfile_sink_start);
+  gstbasesink_class->stop = GST_DEBUG_FUNCPTR (gst_rsfile_sink_stop);
+  gstbasesink_class->query = GST_DEBUG_FUNCPTR (gst_rsfile_sink_query);
+  gstbasesink_class->render = GST_DEBUG_FUNCPTR (gst_rsfile_sink_render);
+  gstbasesink_class->event = GST_DEBUG_FUNCPTR (gst_rsfile_sink_event);
+}
+
+static void
+gst_rsfile_sink_init (GstRsFileSink * src)
+{
+  gst_base_sink_set_blocksize (GST_BASE_SINK (src), 4096);
+}
+
+static void
+gst_rsfile_sink_finalize (GObject * object)
+{
+  GstRsFileSink *src = GST_RSFILE_SINK (object);
+
+  g_free (src->location);
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gst_rsfile_sink_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec)
+{
+  GstRsFileSink *src = GST_RSFILE_SINK (object);
+
+  switch (prop_id) {
+    case PROP_LOCATION:
+      if (src->location)
+        g_free (src->location);
+      src->location = g_value_dup_string (value);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static void
+gst_rsfile_sink_get_property (GObject * object, guint prop_id, GValue * value,
+    GParamSpec * pspec)
+{
+  GstRsFileSink *src = GST_RSFILE_SINK (object);
+
+  switch (prop_id) {
+    case PROP_LOCATION:
+      g_value_set_string (value, src->location);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+extern void bar(void);
+
+static GstFlowReturn
+gst_rsfile_sink_render (GstBaseSink * sink, GstBuffer * buffer)
+{
+  bar();
+}
+
+static gboolean
+gst_rsfile_sink_query (GstBaseSink * basesink, GstQuery * query)
+{
+  GstRsFileSink *sink = GST_RSFILE_SINK (basesink);
+
+  return TRUE;
+}
+
+static gboolean
+gst_rsfile_sink_event (GstBaseSink * sink, GstEvent * event)
+{
+  return TRUE;
+}
+
+/* open the rsfile, necessary to go to READY state */
+static gboolean
+gst_rsfile_sink_start (GstBaseSink * basesink)
+{
+  GstRsFileSink *src = GST_RSFILE_SINK (basesink);
+
+  return TRUE;
+}
+
+/* unmap and close the rsfile */
+static gboolean
+gst_rsfile_sink_stop (GstBaseSink * basesink)
+{
+  GstRsFileSink *src = GST_RSFILE_SINK (basesink);
+
+  return TRUE;
+}

src/rsfilesink.h

+#ifndef __GST_RSFILE_SINK_H__
+#define __GST_RSFILE_SINK_H__
+
+#include <gst/gst.h>
+#include <gst/base/gstbasesink.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_RSFILE_SINK \
+  (gst_rsfile_sink_get_type())
+#define GST_RSFILE_SINK(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RSFILE_SINK,GstRsFileSink))
+#define GST_RSFILE_SINK_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RSFILE_SINK,GstRsFileSinkClass))
+#define GST_IS_RSFILE_SINK(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RSFILE_SINK))
+#define GST_IS_RSFILE_SINK_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RSFILE_SINK))
+#define GST_RSFILE_SINK_CAST(obj) ((GstRsFileSink*) obj)
+
+typedef struct _GstRsFileSink GstRsFileSink;
+typedef struct _GstRsFileSinkClass GstRsFileSinkClass;
+
+struct _GstRsFileSink {
+  GstBaseSink element;
+
+  gchar *location;
+};
+
+struct _GstRsFileSinkClass {
+  GstBaseSinkClass parent_class;
+};
+
+G_GNUC_INTERNAL GType gst_rsfile_sink_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_RSFILE_SINK_H__ */

src/rsfilesink.rs

+#[no_mangle]
+pub extern fn bar() {
+    print!("bar\n");
+}