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123 lines
3.7 KiB
C
123 lines
3.7 KiB
C
/* GStreamer Editing Services
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* Copyright (C) 2010 Brandon Lewis <brandon.lewis@collabora.co.uk>
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* 2010 Nokia Corporation
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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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/**
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* SECTION:ges-track-audio-test-source
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* @short_description: produce a simple test waveform or silence
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*
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* Outputs a test audio stream using audiotestsrc. The default property values
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* output silence. Useful for testing pipelines, or to fill gaps in an audio
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* track.
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*/
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#include "ges-internal.h"
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#include "ges-track-object.h"
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#include "ges-track-audio-test-source.h"
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G_DEFINE_TYPE (GESTrackAudioTestSource, ges_track_audio_test_source,
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GES_TYPE_TRACK_SOURCE);
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enum
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{
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PROP_0,
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};
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static void ges_track_audio_test_source_dispose (GObject * object);
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static void ges_track_audio_test_source_finalize (GObject * object);
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static void ges_track_audio_test_source_get_property (GObject * object, guint
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property_id, GValue * value, GParamSpec * pspec);
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static void ges_track_audio_test_source_set_property (GObject * object, guint
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property_id, const GValue * value, GParamSpec * pspec);
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static GstElement *ges_track_audio_test_source_create_element (GESTrackSource *
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self);
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static void
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ges_track_audio_test_source_class_init (GESTrackAudioTestSourceClass * klass)
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{
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GObjectClass *object_class;
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GESTrackSourceClass *bg_class;
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object_class = G_OBJECT_CLASS (klass);
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bg_class = GES_TRACK_SOURCE_CLASS (klass);
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object_class->get_property = ges_track_audio_test_source_get_property;
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object_class->set_property = ges_track_audio_test_source_set_property;
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object_class->dispose = ges_track_audio_test_source_dispose;
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object_class->finalize = ges_track_audio_test_source_finalize;
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bg_class->create_element = ges_track_audio_test_source_create_element;
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}
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static void
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ges_track_audio_test_source_init (GESTrackAudioTestSource * self)
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{
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}
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static void
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ges_track_audio_test_source_dispose (GObject * object)
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{
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G_OBJECT_CLASS (ges_track_audio_test_source_parent_class)->dispose (object);
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}
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static void
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ges_track_audio_test_source_finalize (GObject * object)
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{
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G_OBJECT_CLASS (ges_track_audio_test_source_parent_class)->finalize (object);
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}
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static void
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ges_track_audio_test_source_get_property (GObject * object,
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guint property_id, GValue * value, GParamSpec * pspec)
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{
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switch (property_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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}
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static void
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ges_track_audio_test_source_set_property (GObject * object,
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guint property_id, const GValue * value, GParamSpec * pspec)
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{
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switch (property_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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}
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static GstElement *
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ges_track_audio_test_source_create_element (GESTrackSource * self)
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{
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GstElement *ret;
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ret = gst_element_factory_make ("audiotestsrc", NULL);
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g_object_set (ret, "volume", (gdouble) 0, NULL);
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return ret;
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}
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GESTrackAudioTestSource *
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ges_track_audio_test_source_new (void)
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{
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return g_object_new (GES_TYPE_TRACK_AUDIO_TEST_SOURCE, NULL);
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}
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