/* GStreamer

 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>

 *               <2007> Wim Taymans <wim.taymans@gmail.com>

 *

 * 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_PLAYBASEBIN_H__

#define __GST_PLAYBASEBIN_H__

#include <gst/gst.h>

#include "gststreaminfo.h"

G_BEGIN_DECLS

#define GST_TYPE_PLAY_BASE_BIN            (gst_play_base_bin_get_type())

#define GST_PLAY_BASE_BIN(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PLAY_BASE_BIN,GstPlayBaseBin))

#define GST_PLAY_BASE_BIN_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PLAY_BASE_BIN,GstPlayBaseBinClass))

#define GST_IS_PLAY_BASE_BIN(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PLAY_BASE_BIN))

#define GST_IS_PLAY_BASE_BIN_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PLAY_BASE_BIN))

#define GST_PLAY_BASE_BIN_GET_CLASS(obj) \

  (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_PLAY_BASE_BIN, \

                              GstPlayBaseBinClass))

typedef struct _GstPlayBaseBin GstPlayBaseBin;

typedef struct _GstPlayBaseBinClass GstPlayBaseBinClass;

/* a GstPlayBaseGroup is a group of pads and streaminfo that together 

 * make up a playable stream. A new group is created from the current 

 * set of pads that are alive when the preroll elements are filled or 

 * when the no-more-pads signal is fired.

 *

 * We have to queue the groups as they can be created while the preroll

 * queues are still playing the old group. We monitor the EOS signals

 * on the preroll queues and when all the streams in the current group

 * have EOSed, we switch to the next queued group.

 */

typedef struct

{

  GstPlayBaseBin *bin;  /* ref to the owner */

  gint           nstreams;

  GList         *streaminfo;

  GValueArray   *streaminfo_value_array;

  /* contained decoded elementary streams */

  struct {

    gint         npads;

    GstBin      *bin;

    GstElement  *preroll;

    GstElement  *selector;

    gboolean     done;

} GstPlayBaseGroup;

struct _GstPlayBaseBin {

  GstPipeline    pipeline;

  /* properties */

  guint64        queue_size;

  guint64        queue_threshold;

  guint64        queue_min_threshold;

  /* connection speed in bits/sec (0 = unknown) */

  guint          connection_speed;

  /* currently loaded media */

  gint           current[NUM_TYPES];

  gchar         *uri, *suburi;

  gboolean       is_stream;

  GstElement    *source;

  GSList        *decoders;

  GstElement    *subtitle;              /* additional filesrc ! subparse bin */

  gboolean       subtitle_done;

  gboolean       need_rebuild;

  GSList        *subtitle_elements;     /* subtitle elements that have 'subtitle-encoding' property */

  gchar         *subencoding;           /* encoding to propagate to the above subtitle elements     */

  GMutex        *sub_lock;              /* protecting subtitle_elements and subencoding members     */

  /* group management - using own lock */

  GMutex        *group_lock;            /* lock and mutex to signal availability of new group */

  GCond         *group_cond;

  GstPlayBaseGroup *building_group;     /* the group that we are constructing */

  GList         *queued_groups;         /* the constructed groups, head is the active one */

  /* for dynamic sources */

  guint          src_np_sig_id;		/* new-pad signal id */

  guint          src_nmp_sig_id;        /* no-more-pads signal id */

  gint           pending;

};

struct _GstPlayBaseBinClass {

  GstPipelineClass parent_class;

  /* virtual fuctions */

  gboolean (*setup_output_pads) (GstPlayBaseBin *play_base_bin,

                                 GstPlayBaseGroup *group);

  void     (*set_subtitles_visible) (GstPlayBaseBin *play_base_bin,

                                     gboolean visible);

};

#ifdef __SYMBIAN32__

IMPORT_C

#endif

GType gst_play_base_bin_get_type (void);

G_END_DECLS

#endif /* __GST_PLAYBASEBIN_H__ */