1 /* GStreamer

     2  * Copyright (C) 2003 Julien Moutte <julien@moutte.net>

     3  * Copyright (C) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net>

     4  * Copyright (C) 2008 Nokia Corporation. (contact <stefan.kost@nokia.com>)

     5  *

     6  * This library is free software; you can redistribute it and/or

     7  * modify it under the terms of the GNU Library General Public

     8  * License as published by the Free Software Foundation; either

     9  * version 2 of the License, or (at your option) any later version.

    10  *

    11  * This library is distributed in the hope that it will be useful,

    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    14  * Library General Public License for more details.

    15  *

    16  * You should have received a copy of the GNU Library General Public

    17  * License along with this library; if not, write to the

    18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

    19  * Boston, MA 02111-1307, USA.

    20  */

    21  

    22 #ifndef __GST_INPUT_SELECTOR_H__

    23 #define __GST_INPUT_SELECTOR_H__

    24 

    25 #include <gst/gst.h>

    26 

    27 G_BEGIN_DECLS

    28 

    29 #define GST_TYPE_INPUT_SELECTOR \

    30   (gst_input_selector_get_type())

    31 #define GST_INPUT_SELECTOR(obj) \

    32   (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_INPUT_SELECTOR, GstInputSelector))

    33 #define GST_INPUT_SELECTOR_CLASS(klass) \

    34   (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_INPUT_SELECTOR, GstInputSelectorClass))

    35 #define GST_IS_INPUT_SELECTOR(obj) \

    36   (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_INPUT_SELECTOR))

    37 #define GST_IS_INPUT_SELECTOR_CLASS(klass) \

    38   (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_INPUT_SELECTOR))

    39 

    40 typedef struct _GstInputSelector GstInputSelector;

    41 typedef struct _GstInputSelectorClass GstInputSelectorClass;

    42 

    43 #define GST_INPUT_SELECTOR_GET_LOCK(sel) (((GstInputSelector*)(sel))->lock)

    44 #define GST_INPUT_SELECTOR_GET_COND(sel) (((GstInputSelector*)(sel))->cond)

    45 #define GST_INPUT_SELECTOR_LOCK(sel) (g_mutex_lock (GST_INPUT_SELECTOR_GET_LOCK(sel)))

    46 #define GST_INPUT_SELECTOR_UNLOCK(sel) (g_mutex_unlock (GST_INPUT_SELECTOR_GET_LOCK(sel)))

    47 #define GST_INPUT_SELECTOR_WAIT(sel) (g_cond_wait (GST_INPUT_SELECTOR_GET_COND(sel), \

    48 			GST_INPUT_SELECTOR_GET_LOCK(sel)))

    49 #define GST_INPUT_SELECTOR_BROADCAST(sel) (g_cond_broadcast (GST_INPUT_SELECTOR_GET_COND(sel)))

    50 

    51 struct _GstInputSelector {

    52   GstElement element;

    53 

    54   GstPad *srcpad;

    55 

    56   GstPad *active_sinkpad;

    57   guint n_pads;

    58   guint padcount;

    59 

    60   GstSegment segment;      /* the output segment */

    61   gboolean pending_close;  /* if we should push a close first */

    62 

    63   GMutex *lock;

    64   GCond *cond;

    65   gboolean blocked;

    66   gboolean flushing;

    67 

    68   /* select all mode, send data from all input pads forward */

    69   gboolean select_all;

    70 };

    71 

    72 struct _GstInputSelectorClass {

    73   GstElementClass parent_class;

    74 

    75   gint64 (*block)	(GstInputSelector *self);

    76   void (*switch_)	(GstInputSelector *self, GstPad *pad,

    77                          gint64 stop_time, gint64 start_time);

    78 };

    79 

    80 GType gst_input_selector_get_type (void);

    81 GType gst_selector_pad_get_type (void);

    82 

    83 G_END_DECLS

    84 

    85 #endif /* __GST_INPUT_SELECTOR_H__ */