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198 lines
11 KiB
C
198 lines
11 KiB
C
/* G-Streamer generic V4L2 element - Tuner interface implementation
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* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
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* Copyright (C) 2006 Edgard Lima <edgard.lima@indt.org.br>
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*
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* gstv4l2tuner.h: tuner interface implementation for V4L2
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_V4L2_TUNER_H__
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#define __GST_V4L2_TUNER_H__
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#include <gst/gst.h>
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#include <gst/interfaces/tuner.h>
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#include "gstv4l2object.h"
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G_BEGIN_DECLS
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#define GST_TYPE_V4L2_TUNER_CHANNEL \
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(gst_v4l2_tuner_channel_get_type ())
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#define GST_V4L2_TUNER_CHANNEL(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_V4L2_TUNER_CHANNEL, \
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GstV4l2TunerChannel))
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#define GST_V4L2_TUNER_CHANNEL_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_V4L2_TUNER_CHANNEL, \
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GstV4l2TunerChannelClass))
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#define GST_IS_V4L2_TUNER_CHANNEL(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_V4L2_TUNER_CHANNEL))
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#define GST_IS_V4L2_TUNER_CHANNEL_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_V4L2_TUNER_CHANNEL))
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typedef struct _GstV4l2TunerChannel {
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GstTunerChannel parent;
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guint32 index;
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guint32 tuner;
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guint32 audio;
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} GstV4l2TunerChannel;
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typedef struct _GstV4l2TunerChannelClass {
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GstTunerChannelClass parent;
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} GstV4l2TunerChannelClass;
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#define GST_TYPE_V4L2_TUNER_NORM \
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(gst_v4l2_tuner_norm_get_type ())
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#define GST_V4L2_TUNER_NORM(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_V4L2_TUNER_NORM, \
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GstV4l2TunerNorm))
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#define GST_V4L2_TUNER_NORM_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_V4L2_TUNER_NORM, \
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GstV4l2TunerNormClass))
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#define GST_IS_V4L2_TUNER_NORM(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_V4L2_TUNER_NORM))
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#define GST_IS_V4L2_TUNER_NORM_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_V4L2_TUNER_NORM))
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typedef struct _GstV4l2TunerNorm {
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GstTunerNorm parent;
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v4l2_std_id index;
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} GstV4l2TunerNorm;
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typedef struct _GstV4l2TunerNormClass {
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GstTunerNormClass parent;
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} GstV4l2TunerNormClass;
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extern gboolean
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gst_v4l2_tuner_set_channel (GstV4l2Object * v4l2object, GstTunerChannel * channel);
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extern gboolean
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gst_v4l2_tuner_set_norm (GstV4l2Object * v4l2object, GstTunerNorm * norm);
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extern gboolean
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gst_v4l2_tuner_set_frequency (GstV4l2Object * v4l2object,
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GstTunerChannel * channel, gulong frequency);
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GType gst_v4l2_tuner_channel_get_type (void);
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GType gst_v4l2_tuner_norm_get_type (void);
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extern const GList *
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gst_v4l2_tuner_list_channels (GstV4l2Object * v4l2object);
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extern void
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gst_v4l2_tuner_set_channel_and_notify (GstV4l2Object * v4l2object, GstTunerChannel * channel);
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extern GstTunerChannel *
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gst_v4l2_tuner_get_channel (GstV4l2Object * v4l2object);
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extern const GList *
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gst_v4l2_tuner_list_norms (GstV4l2Object * v4l2object);
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extern void
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gst_v4l2_tuner_set_norm_and_notify (GstV4l2Object * v4l2object, GstTunerNorm * norm);
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extern GstTunerNorm *
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gst_v4l2_tuner_get_norm (GstV4l2Object * v4l2object);
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extern void
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gst_v4l2_tuner_set_frequency_and_notify (GstV4l2Object * v4l2object,
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GstTunerChannel * channel, gulong frequency);
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extern gulong
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gst_v4l2_tuner_get_frequency (GstV4l2Object * v4l2object, GstTunerChannel * channel);
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extern gint
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gst_v4l2_tuner_signal_strength (GstV4l2Object * v4l2object, GstTunerChannel * channel);
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#define GST_IMPLEMENT_V4L2_TUNER_METHODS(Type, interface_as_function) \
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\
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static const GList * \
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interface_as_function ## _tuner_list_channels (GstTuner * mixer) \
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{ \
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Type *this = (Type*) mixer; \
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return gst_v4l2_tuner_list_channels (this->v4l2object); \
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} \
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\
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static void \
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interface_as_function ## _tuner_set_channel_and_notify (GstTuner * mixer, \
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GstTunerChannel * channel) \
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{ \
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Type *this = (Type*) mixer; \
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gst_v4l2_tuner_set_channel_and_notify (this->v4l2object, channel); \
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} \
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static GstTunerChannel * \
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interface_as_function ## _tuner_get_channel (GstTuner * mixer) \
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{ \
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Type *this = (Type*) mixer; \
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return gst_v4l2_tuner_get_channel (this->v4l2object); \
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} \
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static const GList * \
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interface_as_function ## _tuner_list_norms (GstTuner * mixer) \
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{ \
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Type *this = (Type*) mixer; \
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return gst_v4l2_tuner_list_norms (this->v4l2object); \
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} \
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static void \
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interface_as_function ## _tuner_set_norm_and_notify (GstTuner * mixer, \
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GstTunerNorm * norm) \
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{ \
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Type *this = (Type*) mixer; \
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gst_v4l2_tuner_set_norm_and_notify (this->v4l2object, norm); \
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} \
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static GstTunerNorm * \
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interface_as_function ## _tuner_get_norm (GstTuner * mixer) \
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{ \
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Type *this = (Type*) mixer; \
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return gst_v4l2_tuner_get_norm (this->v4l2object); \
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} \
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\
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static void \
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interface_as_function ## _tuner_set_frequency_and_notify (GstTuner * mixer, \
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GstTunerChannel * channel, \
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gulong frequency) \
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{ \
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Type *this = (Type*) mixer; \
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gst_v4l2_tuner_set_frequency_and_notify (this->v4l2object, channel, frequency); \
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} \
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\
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static gulong \
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interface_as_function ## _tuner_get_frequency (GstTuner * mixer, \
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GstTunerChannel * channel) \
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{ \
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Type *this = (Type*) mixer; \
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return gst_v4l2_tuner_get_frequency (this->v4l2object, channel); \
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} \
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\
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static gint \
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interface_as_function ## _tuner_signal_strength (GstTuner * mixer, \
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GstTunerChannel * channel) \
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{ \
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Type *this = (Type*) mixer; \
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return gst_v4l2_tuner_signal_strength (this->v4l2object, channel); \
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} \
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\
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void \
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interface_as_function ## _tuner_interface_init (GstTunerClass * klass) \
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{ \
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/* default virtual functions */ \
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klass->list_channels = interface_as_function ## _tuner_list_channels; \
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klass->set_channel = interface_as_function ## _tuner_set_channel_and_notify; \
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klass->get_channel = interface_as_function ## _tuner_get_channel; \
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\
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klass->list_norms = interface_as_function ## _tuner_list_norms; \
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klass->set_norm = interface_as_function ## _tuner_set_norm_and_notify; \
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klass->get_norm = interface_as_function ## _tuner_get_norm; \
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\
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klass->set_frequency = interface_as_function ## _tuner_set_frequency_and_notify; \
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klass->get_frequency = interface_as_function ## _tuner_get_frequency; \
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klass->signal_strength = interface_as_function ## _tuner_signal_strength; \
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} \
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#endif /* __GST_V4L2_TUNER_H__ */
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