--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gst_plugins_base/ext/ogg/gstoggdemux.h	Wed Sep 01 12:16:41 2010 +0100
@@ -0,0 +1,184 @@
+/* GStreamer
+ * Copyright (C) 2004 Wim Taymans <wim@fluendo.com>
+ *
+ * gstoggdemux.c: ogg stream demuxer
+ *
+ * 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_OGG_DEMUX_H__
+#define __GST_OGG_DEMUX_H__
+
+#include <ogg/ogg.h>
+
+#include <gst/gst.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_OGG_PAD (gst_ogg_pad_get_type())
+#define GST_OGG_PAD(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OGG_PAD, GstOggPad))
+#define GST_OGG_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OGG_PAD, GstOggPad))
+#define GST_IS_OGG_PAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OGG_PAD))
+#define GST_IS_OGG_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OGG_PAD))
+
+typedef struct _GstOggPad GstOggPad;
+typedef struct _GstOggPadClass GstOggPadClass;
+
+#define GST_TYPE_OGG_DEMUX (gst_ogg_demux_get_type())
+#define GST_OGG_DEMUX(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OGG_DEMUX, GstOggDemux))
+#define GST_OGG_DEMUX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OGG_DEMUX, GstOggDemux))
+#define GST_IS_OGG_DEMUX(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OGG_DEMUX))
+#define GST_IS_OGG_DEMUX_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OGG_DEMUX))
+
+static GType gst_ogg_demux_get_type (void);
+
+typedef struct _GstOggDemux GstOggDemux;
+typedef struct _GstOggDemuxClass GstOggDemuxClass;
+typedef struct _GstOggChain GstOggChain;
+
+/* all information needed for one ogg chain (relevant for chained bitstreams) */
+struct _GstOggChain
+{
+  GstOggDemux *ogg;
+
+  gint64 offset;                /* starting offset of chain */
+  gint64 end_offset;            /* end offset of chain */
+  gint64 bytes;                 /* number of bytes */
+
+  gboolean have_bos;
+
+  GArray *streams;
+
+  GstClockTime total_time;      /* the total time of this chain, this is the MAX of
+                                   the totals of all streams */
+  GstClockTime begin_time;      /* when this chain starts in the stream */
+
+  GstClockTime segment_start;   /* the timestamp of the first sample, this is the MIN of
+                                   the start times of all streams. */
+  GstClockTime segment_stop;    /* the timestamp of the last page, this is the MAX of the
+                                   streams. */
+};
+
+/* different modes for the pad */
+typedef enum
+{
+  GST_OGG_PAD_MODE_INIT,        /* we are feeding our internal decoder to get info */
+  GST_OGG_PAD_MODE_STREAMING,   /* we are streaming buffers to the outside */
+} GstOggPadMode;
+
+/* all information needed for one ogg stream */
+struct _GstOggPad
+{
+  GstPad pad;                   /* subclass GstPad */
+
+  gboolean have_type;
+  GstOggPadMode mode;
+
+  GstPad *elem_pad;             /* sinkpad of internal element */
+  GstElement *element;          /* internal element */
+  GstPad *elem_out;             /* our sinkpad to receive buffers form the internal element */
+
+  GstOggChain *chain;           /* the chain we are part of */
+  GstOggDemux *ogg;             /* the ogg demuxer we are part of */
+
+  GList *headers;
+
+  gboolean is_skeleton;
+  gboolean have_fisbone;
+  gint64 granulerate_n;
+  gint64 granulerate_d;
+  guint32 preroll;
+  guint granuleshift;
+
+  gint serialno;
+  gint64 packetno;
+  gint64 current_granule;
+
+  GstClockTime start_time;      /* the timestamp of the first sample */
+
+  gint64 first_granule;         /* the granulepos of first page == first sample in next page */
+  GstClockTime first_time;      /* the timestamp of the second page or granuletime of first page */
+
+  ogg_stream_state stream;
+  GList *continued;
+
+  gboolean discont;
+  GstFlowReturn last_ret;       /* last return of _pad_push() */
+
+  gboolean dynamic;             /* True if the internal element had dynamic pads */
+  guint padaddedid;             /* The signal id for element::pad-added */
+};
+
+struct _GstOggPadClass
+{
+  GstPadClass parent_class;
+};
+
+#define GST_CHAIN_LOCK(ogg)     g_mutex_lock((ogg)->chain_lock)
+#define GST_CHAIN_UNLOCK(ogg)   g_mutex_unlock((ogg)->chain_lock)
+
+/**
+ * GstOggDemux:
+ *
+ * The ogg demuxer object structure.
+ */
+struct _GstOggDemux
+{
+  GstElement element;
+
+  GstPad *sinkpad;
+
+  gint64 length;
+  gint64 offset;
+
+  gboolean seekable;
+  gboolean running;
+
+  gboolean need_chains;
+
+  /* state */
+  GMutex *chain_lock;           /* we need the lock to protect the chains */
+  GArray *chains;               /* list of chains we know */
+  GstClockTime total_time;
+
+  GstOggChain *current_chain;
+  GstOggChain *building_chain;
+
+  /* playback start/stop positions */
+  GstSegment segment;
+  gboolean segment_running;
+
+  GstEvent *event;
+  GstEvent *newsegment;         /* pending newsegment to be sent from _loop */
+
+  gint64 current_granule;
+
+  /* annodex stuff */
+  gboolean have_fishead;
+  gint64 basetime;
+
+  /* ogg stuff */
+  ogg_sync_state sync;
+};
+
+struct _GstOggDemuxClass
+{
+  GstElementClass parent_class;
+};
+
+G_END_DECLS
+
+#endif /* __GST_OGG_DEMUX_H__ */