gstreamer_core/gst/gstpipeline.h
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     1 /* GStreamer
       
     2  * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
       
     3  *                    2000 Wim Taymans <wtay@chello.be>
       
     4  *
       
     5  * gstpipeline.h: Header for GstPipeline element
       
     6  *
       
     7  * This library is free software; you can redistribute it and/or
       
     8  * modify it under the terms of the GNU Library General Public
       
     9  * License as published by the Free Software Foundation; either
       
    10  * version 2 of the License, or (at your option) any later version.
       
    11  *
       
    12  * This library is distributed in the hope that it will be useful,
       
    13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
       
    14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
       
    15  * Library General Public License for more details.
       
    16  *
       
    17  * You should have received a copy of the GNU Library General Public
       
    18  * License along with this library; if not, write to the
       
    19  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
       
    20  * Boston, MA 02111-1307, USA.
       
    21  */
       
    22 
       
    23 
       
    24 #ifndef __GST_PIPELINE_H__
       
    25 #define __GST_PIPELINE_H__
       
    26 
       
    27 #include <gst/gstbin.h>
       
    28 
       
    29 G_BEGIN_DECLS
       
    30 
       
    31 #define GST_TYPE_PIPELINE 		(gst_pipeline_get_type ())
       
    32 #define GST_PIPELINE(obj) 		(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_PIPELINE, GstPipeline))
       
    33 #define GST_IS_PIPELINE(obj) 		(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_PIPELINE))
       
    34 #define GST_PIPELINE_CLASS(klass) 	(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_PIPELINE, GstPipelineClass))
       
    35 #define GST_IS_PIPELINE_CLASS(klass) 	(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_PIPELINE))
       
    36 #define GST_PIPELINE_GET_CLASS(obj) 	(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_PIPELINE, GstPipelineClass))
       
    37 #define GST_PIPELINE_CAST(obj) 		((GstPipeline*)(obj))
       
    38 
       
    39 typedef struct _GstPipeline GstPipeline;
       
    40 typedef struct _GstPipelineClass GstPipelineClass;
       
    41 typedef struct _GstPipelinePrivate GstPipelinePrivate;
       
    42 
       
    43 /**
       
    44  * GstPipelineFlags:
       
    45  * @GST_PIPELINE_FLAG_FIXED_CLOCK: this pipeline works with a fixed clock
       
    46  * @GST_PIPELINE_FLAG_LAST: offset to define more flags
       
    47  *
       
    48  * Pipeline flags
       
    49  */
       
    50 typedef enum {
       
    51   GST_PIPELINE_FLAG_FIXED_CLOCK        = (GST_BIN_FLAG_LAST << 0),
       
    52   /* padding */
       
    53   GST_PIPELINE_FLAG_LAST               = (GST_BIN_FLAG_LAST << 4)
       
    54 } GstPipelineFlags;
       
    55 
       
    56 /**
       
    57  * GstPipeline:
       
    58  * @fixed_clock: The fixed clock of the pipeline, used when 
       
    59  *               GST_PIPELINE_FLAG_FIXED_CLOCK is set.
       
    60  * @stream_time: The stream time of the pipeline. A better name for this
       
    61  *         property would be the running_time, the total time spent in the
       
    62  *         PLAYING state without being flushed.
       
    63  * @delay: Extra delay added to base_time to compensate for computing delays
       
    64  *         when setting elements to PLAYING.
       
    65  *
       
    66  * The #GstPipeline structure.
       
    67  */
       
    68 struct _GstPipeline {
       
    69   GstBin 	 bin;
       
    70 
       
    71   /*< public >*/ /* with LOCK */
       
    72   GstClock      *fixed_clock;
       
    73 
       
    74   GstClockTime   stream_time;	
       
    75   GstClockTime   delay;
       
    76 
       
    77   /*< private >*/
       
    78   GstPipelinePrivate *priv;
       
    79 
       
    80   gpointer _gst_reserved[GST_PADDING-1];
       
    81 };
       
    82 
       
    83 struct _GstPipelineClass {
       
    84   GstBinClass parent_class;
       
    85 
       
    86   /*< private >*/
       
    87   gpointer _gst_reserved[GST_PADDING];
       
    88 };
       
    89 #ifdef __SYMBIAN32__
       
    90 IMPORT_C
       
    91 #endif
       
    92 
       
    93 
       
    94 GType		gst_pipeline_get_type		(void);
       
    95 #ifdef __SYMBIAN32__
       
    96 IMPORT_C
       
    97 #endif
       
    98 
       
    99 GstElement*	gst_pipeline_new		(const gchar *name);
       
   100 #ifdef __SYMBIAN32__
       
   101 IMPORT_C
       
   102 #endif
       
   103 
       
   104 
       
   105 GstBus*		gst_pipeline_get_bus		(GstPipeline *pipeline);
       
   106 #ifdef __SYMBIAN32__
       
   107 IMPORT_C
       
   108 #endif
       
   109 
       
   110 
       
   111 void		gst_pipeline_set_new_stream_time  (GstPipeline *pipeline, GstClockTime time);
       
   112 #ifdef __SYMBIAN32__
       
   113 IMPORT_C
       
   114 #endif
       
   115 
       
   116 GstClockTime	gst_pipeline_get_last_stream_time (GstPipeline *pipeline);
       
   117 #ifdef __SYMBIAN32__
       
   118 IMPORT_C
       
   119 #endif
       
   120 
       
   121 
       
   122 void            gst_pipeline_use_clock          (GstPipeline *pipeline, GstClock *clock);
       
   123 #ifdef __SYMBIAN32__
       
   124 IMPORT_C
       
   125 #endif
       
   126 
       
   127 gboolean        gst_pipeline_set_clock          (GstPipeline *pipeline, GstClock *clock);
       
   128 #ifdef __SYMBIAN32__
       
   129 IMPORT_C
       
   130 #endif
       
   131 
       
   132 GstClock*       gst_pipeline_get_clock          (GstPipeline *pipeline);
       
   133 #ifdef __SYMBIAN32__
       
   134 IMPORT_C
       
   135 #endif
       
   136 
       
   137 void            gst_pipeline_auto_clock         (GstPipeline *pipeline);
       
   138 #ifdef __SYMBIAN32__
       
   139 IMPORT_C
       
   140 #endif
       
   141 
       
   142 
       
   143 void            gst_pipeline_set_delay          (GstPipeline *pipeline, GstClockTime delay);
       
   144 #ifdef __SYMBIAN32__
       
   145 IMPORT_C
       
   146 #endif
       
   147 
       
   148 GstClockTime    gst_pipeline_get_delay          (GstPipeline *pipeline);
       
   149 #ifdef __SYMBIAN32__
       
   150 IMPORT_C
       
   151 #endif
       
   152 
       
   153 
       
   154 void            gst_pipeline_set_auto_flush_bus (GstPipeline *pipeline, gboolean auto_flush);
       
   155 #ifdef __SYMBIAN32__
       
   156 IMPORT_C
       
   157 #endif
       
   158 
       
   159 gboolean        gst_pipeline_get_auto_flush_bus (GstPipeline *pipeline);
       
   160 
       
   161 G_END_DECLS
       
   162 
       
   163 #endif /* __GST_PIPELINE_H__ */
       
   164