--- /dev/null
+/* 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>
+
+#include "gstoggstream.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))
+
+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;
+
+ GstOggChain *chain; /* the chain we are part of */
+ GstOggDemux *ogg; /* the ogg demuxer we are part of */
+
+ GstOggStream map;
+
+ gint64 packetno;
+ gint64 current_granule;
+ gint64 keyframe_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 */
+
+ GstClockTime last_stop; /* last_stop when last push occured; used to detect when we
+ * need to send a newsegment update event for sparse streams */
+
+ GList *continued;
+
+ gboolean discont;
+ GstFlowReturn last_ret; /* last return of _pad_push() */
+ gboolean is_eos;
+
+ gboolean added;
+};
+
+struct _GstOggPadClass
+{
+ GstPadClass parent_class;
+};
+
+/**
+ * GstOggDemux:
+ *
+ * The ogg demuxer object structure.
+ */
+struct _GstOggDemux
+{
+ GstElement element;
+
+ GstPad *sinkpad;
+
+ gint64 length;
+ gint64 read_offset;
+ gint64 offset;
+
+ gboolean pullmode;
+ gboolean running;
+
+ gboolean need_chains;
+ gboolean resync;
+
+ /* state */
+ GMutex *chain_lock; /* we need the lock to protect the chains */
+ GArray *chains; /* list of chains we know */
+ GstClockTime total_time;
+ gint bitrate; /* bitrate of the current chain */
+
+ GstOggChain *current_chain;
+ GstOggChain *building_chain;
+
+ /* playback start/stop positions */
+ GstSegment segment;
+ gboolean segment_running;
+ guint32 seqnum;
+
+ GstEvent *event;
+ GstEvent *newsegment; /* pending newsegment to be sent from _loop */
+
+ /* annodex stuff */
+ gint64 basetime;
+ gint64 prestime;
+
+ /* ogg stuff */
+ ogg_sync_state sync;
+};
+
+struct _GstOggDemuxClass
+{
+ GstElementClass parent_class;
+};
+
+gboolean gst_ogg_demux_plugin_init (GstPlugin * plugin);
+
+G_END_DECLS
+
+#endif /* __GST_OGG_DEMUX_H__ */
projects / mafwsubrenderer / blobdiff