1 /* GStreamer

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

     3  *               <2007> Wim Taymans <wim.taymans@gmail.com>

     4  *

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

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

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

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

     9  *

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

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

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

    13  * Library General Public License for more details.

    14  *

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

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

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

    18  * Boston, MA 02111-1307, USA.

    19  */

    20 

    21 

    22 #ifndef __GST_STREAMINFO_H__

    23 #define __GST_STREAMINFO_H__

    24 

    25 #include <gst/gst.h>

    26 

    27 G_BEGIN_DECLS

    28 

    29 #define GST_TYPE_STREAM_INFO            (gst_stream_info_get_type())

    30 #define GST_STREAM_INFO(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_STREAM_INFO,GstStreamInfo))

    31 #define GST_STREAM_INFO_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_STREAM_INFO,GstStreamInfoClass))

    32 #define GST_IS_STREAM_INFO(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_STREAM_INFO))

    33 #define GST_IS_STREAM_INFO_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_STREAM_INFO))

    34 

    35 typedef struct _GstStreamInfo GstStreamInfo;

    36 typedef struct _GstStreamInfoClass GstStreamInfoClass;

    37 

    38 typedef enum {

    39   GST_STREAM_TYPE_UNKNOWN = 0,

    40   GST_STREAM_TYPE_AUDIO   = 1,    /* an audio stream */

    41   GST_STREAM_TYPE_VIDEO   = 2,    /* a video stream */

    42   GST_STREAM_TYPE_TEXT    = 3,    /* a subtitle/text stream */

    43   GST_STREAM_TYPE_SUBPICTURE = 4, /* a subtitle in picture-form */

    44   GST_STREAM_TYPE_ELEMENT = 5    /* stream handled by an element */

    45 } GstStreamType;

    46 

    47 struct _GstStreamInfo {

    48   GObject        parent;

    49 

    50   GstObject     *object;        /* pad/element providing/handling this stream */

    51   GstStreamType  type;          /* the type of the provided stream */

    52   gchar         *decoder;       /* string describing the decoder */

    53   gboolean       mute;          /* is the stream muted or not */

    54   GstObject     *origin;        /* the real object providing this stream, this can

    55                                    be different from the object as the object can be

    56                                    a queue pad, inserted for preroll. */

    57   GstCaps       *caps;          /* the caps of the stream */

    58 

    59   /* this is tream information cached here because the streaminfo may be

    60    * created before the app can know about it. */

    61   gchar         *langcode,

    62                 *codec;

    63 };

    64 

    65 struct _GstStreamInfoClass {

    66   GObjectClass   parent_class;

    67 

    68   /* signals */

    69   void (*muted) (GstStreamInfo *info, gboolean mute);

    70 };

    71 #ifdef __SYMBIAN32__

    72 IMPORT_C

    73 #endif

    74 

    75 

    76 GType gst_stream_info_get_type (void);

    77 #ifdef __SYMBIAN32__

    78 IMPORT_C

    79 #endif

    80 

    81 

    82 GstStreamInfo*  gst_stream_info_new             (GstObject     *object,

    83                                                  GstStreamType  type,

    84                                                  const gchar   *decoder,

    85                                                  const GstCaps *caps);

    86 #ifdef __SYMBIAN32__

    87 IMPORT_C

    88 #endif

    89 

    90 

    91 gboolean        gst_stream_info_set_mute        (GstStreamInfo *stream_info, 

    92                                                  gboolean mute);

    93 #ifdef __SYMBIAN32__

    94 IMPORT_C

    95 #endif

    96 

    97 gboolean        gst_stream_info_is_mute         (GstStreamInfo *stream_info);

    98 

    99 

   100 G_END_DECLS

   101 

   102 #endif /* __GST_STREAMINFO_H__ */