X-Git-Url: http://vcs.maemo.org/git/?a=blobdiff_plain;f=gst-plugins-base-subtitles0.10%2Fgst-libs%2Fgst%2Faudio%2Fgstaudiosink.h;fp=gst-plugins-base-subtitles0.10%2Fgst-libs%2Fgst%2Faudio%2Fgstaudiosink.h;h=83a4e952c5daa253a83e6288695e0ec61131d4fe;hb=57ba96e291a055f69dbfd4ae9f1ae2390e36986e;hp=0000000000000000000000000000000000000000;hpb=be2c98fb83895d10ac44af7b9a9c3e00ca54bf49;p=mafwsubrenderer

diff --git a/gst-plugins-base-subtitles0.10/gst-libs/gst/audio/gstaudiosink.h b/gst-plugins-base-subtitles0.10/gst-libs/gst/audio/gstaudiosink.h
new file mode 100644
index 0000000..83a4e95
--- /dev/null
+++ b/gst-plugins-base-subtitles0.10/gst-libs/gst/audio/gstaudiosink.h
@@ -0,0 +1,102 @@
+/* GStreamer
+ * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
+ *                    2005 Wim Taymans <wim@fluendo.com>
+ *
+ * gstaudiosink.h:
+ *
+ * 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_AUDIO_SINK_H__
+#define __GST_AUDIO_SINK_H__
+
+#include <gst/gst.h>
+#include <gst/audio/gstbaseaudiosink.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_AUDIO_SINK             (gst_audio_sink_get_type())
+#define GST_AUDIO_SINK(obj)             (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_SINK,GstAudioSink))
+#define GST_AUDIO_SINK_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIO_SINK,GstAudioSinkClass))
+#define GST_AUDIO_SINK_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_AUDIO_SINK,GstAudioSinkClass))
+#define GST_IS_AUDIO_SINK(obj)          (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_SINK))
+#define GST_IS_AUDIO_SINK_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIO_SINK))
+
+typedef struct _GstAudioSink GstAudioSink;
+typedef struct _GstAudioSinkClass GstAudioSinkClass;
+
+/**
+ * GstAudioSink:
+ * 
+ * Opaque #GstAudioSink.
+ */
+struct _GstAudioSink {
+  GstBaseAudioSink       element;
+
+  /*< private >*/ /* with LOCK */
+  GThread   *thread;
+
+  /*< private >*/
+  gpointer _gst_reserved[GST_PADDING];
+};
+
+/**
+ * GstAudioSinkClass:
+ * @parent_class: the parent class structure.
+ * @open: Open the device. No configuration needs to be done at this point.
+ *        This function is also used to check if the device is available.
+ * @prepare: Prepare the device to operate with the specified parameters.
+ * @unprepare: Undo operations done in prepare.
+ * @close: Close the device.
+ * @write: Write data to the device.
+ * @delay: Return how many samples are still in the device. This is used to
+ *         drive the synchronisation.
+ * @reset: Returns as quickly as possible from a write and flush any pending
+ *         samples from the device.
+ *
+ * #GstAudioSink class. Override the vmethods to implement functionality.
+ */
+struct _GstAudioSinkClass {
+  GstBaseAudioSinkClass parent_class;
+
+  /* vtable */
+
+  /* open the device with given specs */
+  gboolean (*open)      (GstAudioSink *sink);
+  /* prepare resources and state to operate with the given specs */
+  gboolean (*prepare)   (GstAudioSink *sink, GstRingBufferSpec *spec);
+  /* undo anything that was done in prepare() */
+  gboolean (*unprepare) (GstAudioSink *sink);
+  /* close the device */
+  gboolean (*close)     (GstAudioSink *sink);
+  /* write samples to the device */
+  /* FIXME 0.11: change return value to gint, as most implementation use that
+   * already anyway */
+  guint    (*write)     (GstAudioSink *sink, gpointer data, guint length);
+  /* get number of samples queued in the device */
+  guint    (*delay)     (GstAudioSink *sink);
+  /* reset the audio device, unblock from a write */
+  void     (*reset)     (GstAudioSink *sink);
+
+  /*< private >*/
+  gpointer _gst_reserved[GST_PADDING];
+};
+
+GType gst_audio_sink_get_type(void);
+
+G_END_DECLS
+
+#endif /* __GST_AUDIO_SINK_H__ */