1 /* GStreamer Tuner

     2  * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>

     3  *

     4  * tunerchannel.h: tuner channel object design

     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_TUNER_CHANNEL_H__

    23 #define __GST_TUNER_CHANNEL_H__

    24 

    25 #include <gst/gst.h>

    26 

    27 G_BEGIN_DECLS

    28 

    29 #define GST_TYPE_TUNER_CHANNEL \

    30   (gst_tuner_channel_get_type ())

    31 #define GST_TUNER_CHANNEL(obj) \

    32   (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_TUNER_CHANNEL, \

    33                                GstTunerChannel))

    34 #define GST_TUNER_CHANNEL_CLASS(klass) \

    35   (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_TUNER_CHANNEL, \

    36                             GstTunerChannelClass))

    37 #define GST_IS_TUNER_CHANNEL(obj) \

    38   (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_TUNER_CHANNEL))

    39 #define GST_IS_TUNER_CHANNEL_CLASS(klass) \

    40   (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_TUNER_CHANNEL))

    41 

    42 typedef enum {

    43   GST_TUNER_CHANNEL_INPUT     = (1<<0),

    44   GST_TUNER_CHANNEL_OUTPUT    = (1<<1),

    45   GST_TUNER_CHANNEL_FREQUENCY = (1<<2),

    46   GST_TUNER_CHANNEL_AUDIO     = (1<<3)

    47 } GstTunerChannelFlags;

    48 

    49 #define GST_TUNER_CHANNEL_HAS_FLAG(channel, flag) \

    50   ((channel)->flags & flag)

    51 

    52 typedef struct _GstTunerChannel {

    53   GObject              parent;

    54 

    55   gchar               *label;

    56   GstTunerChannelFlags flags;

    57   gfloat               freq_multiplicator;

    58   gulong               min_frequency,

    59                        max_frequency;

    60   gint                 min_signal,

    61                        max_signal;

    62 } GstTunerChannel;

    63 

    64 typedef struct _GstTunerChannelClass {

    65   GObjectClass parent;

    66 

    67   /* signals */

    68   void (*frequency_changed) (GstTunerChannel *channel,

    69                              gulong           frequency);

    70   void (*signal_changed)    (GstTunerChannel *channel,

    71                              gint             signal);

    72 

    73   gpointer _gst_reserved[GST_PADDING];

    74 } GstTunerChannelClass;

    75 #ifdef __SYMBIAN32__

    76 IMPORT_C

    77 #endif

    78 

    79 

    80 GType           gst_tuner_channel_get_type      (void);

    81 

    82 G_END_DECLS

    83 

    84 #endif /* __GST_TUNER_CHANNEL_H__ */