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bec03858fa
First step of a larger cleanup, all function from v4l2_calls are in fact methods on GstV4l2Object. This split makes the code really confusing. This also remove no longer unused macros.
303 lines
8.1 KiB
C
303 lines
8.1 KiB
C
/* GStreamer
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*
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* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
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* 2006 Edgard Lima <edgard.lima@gmail.com>
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*
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* gstv4l2tuner.c: 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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst.h>
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#include "gstv4l2object.h"
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#include "gstv4l2tuner.h"
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#include "gstv4l2object.h"
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G_DEFINE_TYPE (GstV4l2TunerChannel, gst_v4l2_tuner_channel,
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GST_TYPE_TUNER_CHANNEL);
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G_DEFINE_TYPE (GstV4l2TunerNorm, gst_v4l2_tuner_norm, GST_TYPE_TUNER_NORM);
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static void
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gst_v4l2_tuner_channel_class_init (GstV4l2TunerChannelClass * klass)
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{
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}
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static void
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gst_v4l2_tuner_channel_init (GstV4l2TunerChannel * channel)
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{
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channel->index = (guint32) - 1;
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channel->tuner = (guint32) - 1;
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channel->audio = (guint32) - 1;
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}
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static void
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gst_v4l2_tuner_norm_class_init (GstV4l2TunerNormClass * klass)
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{
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}
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static void
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gst_v4l2_tuner_norm_init (GstV4l2TunerNorm * norm)
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{
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norm->index = 0;
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}
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static G_GNUC_UNUSED gboolean
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gst_v4l2_tuner_contains_channel (GstV4l2Object * v4l2object,
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GstV4l2TunerChannel * v4l2channel)
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{
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const GList *item;
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for (item = v4l2object->channels; item != NULL; item = item->next)
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if (item->data == v4l2channel)
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return TRUE;
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return FALSE;
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}
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const GList *
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gst_v4l2_tuner_list_channels (GstV4l2Object * v4l2object)
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{
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return v4l2object->channels;
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}
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gboolean
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gst_v4l2_tuner_set_channel (GstV4l2Object * v4l2object,
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GstTunerChannel * channel)
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{
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GstV4l2TunerChannel *v4l2channel = GST_V4L2_TUNER_CHANNEL (channel);
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/* assert that we're opened and that we're using a known item */
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g_return_val_if_fail (GST_V4L2_IS_OPEN (v4l2object), FALSE);
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g_return_val_if_fail (gst_v4l2_tuner_contains_channel (v4l2object,
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v4l2channel), FALSE);
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if (v4l2object->set_in_out_func (v4l2object, v4l2channel->index)) {
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gst_tuner_channel_changed (GST_TUNER (v4l2object->element), channel);
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/* can FPS change here? */
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return TRUE;
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}
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return FALSE;
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}
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GstTunerChannel *
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gst_v4l2_tuner_get_channel (GstV4l2Object * v4l2object)
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{
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GList *item;
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gint channel;
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/* assert that we're opened and that we're using a known item */
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g_return_val_if_fail (GST_V4L2_IS_OPEN (v4l2object), NULL);
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if (v4l2object->get_in_out_func (v4l2object, &channel)) {
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for (item = v4l2object->channels; item != NULL; item = item->next) {
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if (channel == GST_V4L2_TUNER_CHANNEL (item->data)->index)
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return (GstTunerChannel *) item->data;
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}
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}
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return NULL;
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}
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static G_GNUC_UNUSED gboolean
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gst_v4l2_tuner_contains_norm (GstV4l2Object * v4l2object,
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GstV4l2TunerNorm * v4l2norm)
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{
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const GList *item;
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for (item = v4l2object->norms; item != NULL; item = item->next)
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if (item->data == v4l2norm)
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return TRUE;
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return FALSE;
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}
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const GList *
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gst_v4l2_tuner_list_norms (GstV4l2Object * v4l2object)
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{
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return v4l2object->norms;
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}
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void
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gst_v4l2_tuner_set_norm_and_notify (GstV4l2Object * v4l2object,
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GstTunerNorm * norm)
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{
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if (gst_v4l2_tuner_set_norm (v4l2object, norm)) {
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#if 0
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g_object_notify (G_OBJECT (v4l2object->element), "norm");
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#endif
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}
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}
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gboolean
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gst_v4l2_tuner_set_norm (GstV4l2Object * v4l2object, GstTunerNorm * norm)
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{
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GstV4l2TunerNorm *v4l2norm = GST_V4L2_TUNER_NORM (norm);
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/* assert that we're opened and that we're using a known item */
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g_return_val_if_fail (GST_V4L2_IS_OPEN (v4l2object), FALSE);
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g_return_val_if_fail (gst_v4l2_tuner_contains_norm (v4l2object, v4l2norm),
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FALSE);
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if (gst_v4l2_set_norm (v4l2object, v4l2norm->index)) {
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gst_tuner_norm_changed (GST_TUNER (v4l2object->element), norm);
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if (v4l2object->update_fps_func)
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v4l2object->update_fps_func (v4l2object);
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return TRUE;
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}
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return FALSE;
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}
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GstTunerNorm *
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gst_v4l2_tuner_get_norm (GstV4l2Object * v4l2object)
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{
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v4l2_std_id norm;
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/* assert that we're opened and that we're using a known item */
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g_return_val_if_fail (GST_V4L2_IS_OPEN (v4l2object), NULL);
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gst_v4l2_get_norm (v4l2object, &norm);
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return gst_v4l2_tuner_get_norm_by_std_id (v4l2object, norm);
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}
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GstTunerNorm *
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gst_v4l2_tuner_get_norm_by_std_id (GstV4l2Object * v4l2object, v4l2_std_id norm)
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{
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GList *item;
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for (item = v4l2object->norms; item != NULL; item = item->next) {
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if (norm & GST_V4L2_TUNER_NORM (item->data)->index)
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return (GstTunerNorm *) item->data;
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}
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return NULL;
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}
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v4l2_std_id
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gst_v4l2_tuner_get_std_id_by_norm (GstV4l2Object * v4l2object,
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GstTunerNorm * norm)
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{
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GList *item;
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for (item = v4l2object->norms; item != NULL; item = item->next) {
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if (norm == GST_TUNER_NORM (item->data))
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return GST_V4L2_TUNER_NORM (item->data)->index;
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}
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return 0;
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}
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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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{
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if (gst_v4l2_tuner_set_frequency (v4l2object, channel, frequency)) {
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#if 0
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g_object_notify (G_OBJECT (v4l2object->element), "frequency");
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#endif
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}
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}
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gboolean
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gst_v4l2_tuner_set_frequency (GstV4l2Object * v4l2object,
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GstTunerChannel * channel, gulong frequency)
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{
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GstV4l2TunerChannel *v4l2channel = GST_V4L2_TUNER_CHANNEL (channel);
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gint chan;
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/* assert that we're opened and that we're using a known item */
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g_return_val_if_fail (GST_V4L2_IS_OPEN (v4l2object), FALSE);
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g_return_val_if_fail (GST_TUNER_CHANNEL_HAS_FLAG (channel,
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GST_TUNER_CHANNEL_FREQUENCY), FALSE);
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g_return_val_if_fail (gst_v4l2_tuner_contains_channel (v4l2object,
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v4l2channel), FALSE);
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if (v4l2object->get_in_out_func (v4l2object, &chan)) {
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if (chan == GST_V4L2_TUNER_CHANNEL (channel)->index &&
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GST_TUNER_CHANNEL_HAS_FLAG (channel, GST_TUNER_CHANNEL_FREQUENCY)) {
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if (gst_v4l2_set_frequency (v4l2object, v4l2channel->tuner, frequency)) {
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gst_tuner_frequency_changed (GST_TUNER (v4l2object->element), channel,
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frequency);
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return TRUE;
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}
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}
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}
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return FALSE;
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}
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gulong
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gst_v4l2_tuner_get_frequency (GstV4l2Object * v4l2object,
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GstTunerChannel * channel)
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{
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GstV4l2TunerChannel *v4l2channel = GST_V4L2_TUNER_CHANNEL (channel);
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gint chan;
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gulong frequency = 0;
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/* assert that we're opened and that we're using a known item */
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g_return_val_if_fail (GST_V4L2_IS_OPEN (v4l2object), 0);
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g_return_val_if_fail (GST_TUNER_CHANNEL_HAS_FLAG (channel,
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GST_TUNER_CHANNEL_FREQUENCY), 0);
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g_return_val_if_fail (gst_v4l2_tuner_contains_channel (v4l2object,
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v4l2channel), 0);
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if (v4l2object->get_in_out_func (v4l2object, &chan)) {
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if (chan == GST_V4L2_TUNER_CHANNEL (channel)->index &&
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GST_TUNER_CHANNEL_HAS_FLAG (channel, GST_TUNER_CHANNEL_FREQUENCY)) {
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gst_v4l2_get_frequency (v4l2object, v4l2channel->tuner, &frequency);
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}
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}
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return frequency;
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}
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gint
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gst_v4l2_tuner_signal_strength (GstV4l2Object * v4l2object,
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GstTunerChannel * channel)
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{
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GstV4l2TunerChannel *v4l2channel = GST_V4L2_TUNER_CHANNEL (channel);
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gint chan;
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gulong signal = 0;
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/* assert that we're opened and that we're using a known item */
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g_return_val_if_fail (GST_V4L2_IS_OPEN (v4l2object), 0);
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g_return_val_if_fail (GST_TUNER_CHANNEL_HAS_FLAG (channel,
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GST_TUNER_CHANNEL_FREQUENCY), 0);
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g_return_val_if_fail (gst_v4l2_tuner_contains_channel (v4l2object,
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v4l2channel), 0);
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if (v4l2object->get_in_out_func (v4l2object, &chan)) {
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if (chan == GST_V4L2_TUNER_CHANNEL (channel)->index &&
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GST_TUNER_CHANNEL_HAS_FLAG (channel, GST_TUNER_CHANNEL_FREQUENCY)) {
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gst_v4l2_signal_strength (v4l2object, v4l2channel->tuner, &signal);
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}
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}
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return signal;
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}
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