1 files changed, 169 insertions, 0 deletions
diff --git a/gst/mpegtsdemux/mpegtsbase.h b/gst/mpegtsdemux/mpegtsbase.h
new file mode 100644
index 000000000..168f2ff1c
--- /dev/null
+++ b/gst/mpegtsdemux/mpegtsbase.h
@@ -0,0 +1,169 @@
+/*
+ * mpegtsbase.h - GStreamer MPEG transport stream base class
+ * Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
+ *               2007 Alessandro Decina
+ *
+ * Authors:
+ *   Alessandro Decina <alessandro@nnva.org>
+ *   Edward Hervey <edward.hervey@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.
+ */
+
+
+#ifndef GST_MPEG_TS_BASE_H
+#define GST_MPEG_TS_BASE_H
+
+#include <gst/gst.h>
+#include "mpegtspacketizer.h"
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_MPEGTS_BASE \
+  (mpegts_base_get_type())
+#define GST_MPEGTS_BASE(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MPEGTS_BASE,MpegTSBase))
+#define GST_MPEGTS_BASE_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MPEGTS_BASE,MpegTSBaseClass))
+#define GST_IS_MPEGTS_BASE(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MPEGTS_BASE))
+#define GST_IS_MPEGTS_BASE_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MPEGTS_BASE))
+#define GST_MPEGTS_BASE_GET_CLASS(obj) \
+  (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_MPEGTS_BASE, MpegTSBaseClass))
+
+typedef struct _MpegTSBase MpegTSBase;
+typedef struct _MpegTSBaseClass MpegTSBaseClass;
+typedef struct _MpegTSBaseStream MpegTSBaseStream;
+typedef struct _MpegTSBaseProgram MpegTSBaseProgram;
+
+struct _MpegTSBaseStream
+{
+  guint16 pid;
+  guint8 stream_type;
+  GstStructure* stream_info;
+};
+
+struct _MpegTSBaseProgram
+{
+  gint program_number;
+  guint16 pmt_pid;
+  guint16 pcr_pid;
+  GstStructure *pmt_info;
+  MpegTSBaseStream **streams;
+  gint patcount;
+
+  /* Pending Tags for the program */
+  GstTagList *tags;
+  guint event_id;
+};
+
+typedef enum {
+  BASE_MODE_SCANNING,
+  BASE_MODE_SEEKING,
+  BASE_MODE_STREAMING
+} MpegTSBaseMode;
+
+struct _MpegTSBase {
+  GstElement element;
+
+  GstPad *sinkpad;
+
+  /* pull-based behaviour */
+  MpegTSBaseMode mode;
+
+  /* location of first sync point */
+  guint64	initial_sync_point;
+
+  /* Current pull offset (also set by seek handler) */
+  guint64	seek_offset;
+
+  /* Cached packetsize */
+  guint16	packetsize;
+
+  /* the following vars must be protected with the OBJECT_LOCK as they can be
+   * accessed from the application thread and the streaming thread */
+  GHashTable *programs;
+
+  GstStructure *pat;
+  MpegTSPacketizer2 *packetizer;
+
+  /* arrays that say whether a pid is a known psi pid or a pes pid
+   * FIXME: Make these bit arrays so we can make them 8 times smaller */
+  gboolean *known_psi;
+  gboolean *is_pes;
+
+  gboolean disposed;
+
+  /* size of the MpegTSBaseProgram structure, can be overridden
+   * by subclasses if they have their own MpegTSBaseProgram subclasses. */
+  gsize program_size;
+
+  /* size of the MpegTSBaseStream structure, can be overridden
+   * by subclasses if they have their own MpegTSBaseStream subclasses */
+  gsize stream_size;
+
+  /*Offset from the origin to the first PAT (pullmode) */
+  guint64    first_pat_offset;
+};
+
+struct _MpegTSBaseClass {
+  GstElementClass parent_class;
+
+  /* Virtual methods */
+  GstFlowReturn (*push) (MpegTSBase *base, MpegTSPacketizerPacket *packet, MpegTSPacketizerSection * section);
+  gboolean (*push_event) (MpegTSBase *base, GstEvent * event);
+  /* program_started gets called when program's pmt arrives for first time */
+  void (*program_started) (MpegTSBase *base, MpegTSBaseProgram *program);
+  /* program_stopped gets called when pat no longer has program's pmt */
+  void (*program_stopped) (MpegTSBase *base, MpegTSBaseProgram *program);
+
+  /* stream_added is called whenever a new stream has been identified */
+  void (*stream_added) (MpegTSBase *base, MpegTSBaseStream *stream, MpegTSBaseProgram *program);
+  /* stream_removed is called whenever a stream is no longer referenced */
+  void (*stream_removed) (MpegTSBase *base, MpegTSBaseStream *stream);
+
+  /* find_timestamps is called to find PCR */
+ GstFlowReturn (*find_timestamps) (MpegTSBase * base, guint64 initoff, guint64 *offset);
+
+  /* signals */
+  void (*pat_info) (GstStructure *pat);
+  void (*pmt_info) (GstStructure *pmt);
+  void (*nit_info) (GstStructure *nit);
+  void (*sdt_info) (GstStructure *sdt);
+  void (*eit_info) (GstStructure *eit);
+};
+
+GType mpegts_base_get_type(void);
+
+MpegTSBaseProgram *mpegts_base_get_program (MpegTSBase * base, gint program_number);
+MpegTSBaseProgram *mpegts_base_add_program (MpegTSBase * base, gint program_number, guint16 pmt_pid);
+
+guint8 *mpegts_get_descriptor_from_stream (MpegTSBaseStream * stream, guint8 tag);
+guint8 *mpegts_get_descriptor_from_program (MpegTSBaseProgram * program, guint8 tag);
+
+
+gboolean gst_mpegtsbase_plugin_init (GstPlugin * plugin);
+
+gboolean mpegts_base_is_psi (MpegTSBase * base, MpegTSPacketizerPacket * packet);
+gboolean mpegts_base_handle_psi (MpegTSBase * base, MpegTSPacketizerSection * section);
+
+void mpegts_base_program_remove_stream (MpegTSBase * base, MpegTSBaseProgram * program, guint16 pid);
+
+void mpegts_base_remove_program(MpegTSBase *base, gint program_number);
+G_END_DECLS
+
+#endif /* GST_MPEG_TS_BASE_H */