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132 lines
3.8 KiB
C
132 lines
3.8 KiB
C
/* GStreamer Editing Services
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* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
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* 2009 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-image-source
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* @short_description: outputs the video stream from a media file as a still
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* image.
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*
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* Outputs the video stream from a given file as a still frame. The frame
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* chosen will be determined by the in-point property on the track object. For
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* image files, do not set the in-point property.
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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-image-source.h"
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G_DEFINE_TYPE (GESTrackImageSource, ges_track_image_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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PROP_URI
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};
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static void
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ges_track_image_source_get_property (GObject * object, guint property_id,
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GValue * value, GParamSpec * pspec)
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{
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GESTrackImageSource *tfs = GES_TRACK_IMAGE_SOURCE (object);
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switch (property_id) {
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case PROP_URI:
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g_value_set_string (value, tfs->uri);
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break;
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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_image_source_set_property (GObject * object, guint property_id,
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const GValue * value, GParamSpec * pspec)
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{
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GESTrackImageSource *tfs = GES_TRACK_IMAGE_SOURCE (object);
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switch (property_id) {
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case PROP_URI:
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tfs->uri = g_value_dup_string (value);
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break;
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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_image_source_dispose (GObject * object)
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{
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GESTrackImageSource *tfs = GES_TRACK_IMAGE_SOURCE (object);
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if (tfs->uri)
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g_free (tfs->uri);
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G_OBJECT_CLASS (ges_track_image_source_parent_class)->dispose (object);
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}
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static void
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ges_track_image_source_finalize (GObject * object)
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{
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G_OBJECT_CLASS (ges_track_image_source_parent_class)->finalize (object);
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}
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static gboolean
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ges_track_image_source_create_gnl_object (GESTrackObject * object)
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{
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object->gnlobject = gst_element_factory_make ("gnlurisource", NULL);
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g_object_set (object->gnlobject, "uri", ((GESTrackImageSource *) object)->uri,
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NULL);
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return TRUE;
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}
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static void
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ges_track_image_source_class_init (GESTrackImageSourceClass * klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GESTrackObjectClass *track_class = GES_TRACK_OBJECT_CLASS (klass);
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object_class->get_property = ges_track_image_source_get_property;
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object_class->set_property = ges_track_image_source_set_property;
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object_class->dispose = ges_track_image_source_dispose;
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object_class->finalize = ges_track_image_source_finalize;
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/**
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* GESTrackImageSource:uri
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*
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* The location of the file/resource to use.
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*/
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g_object_class_install_property (object_class, PROP_URI,
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g_param_spec_string ("uri", "URI", "uri of the resource",
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NULL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
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track_class->create_gnl_object = ges_track_image_source_create_gnl_object;
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}
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static void
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ges_track_image_source_init (GESTrackImageSource * self)
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{
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}
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GESTrackImageSource *
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ges_track_image_source_new (gchar * uri)
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{
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return g_object_new (GES_TYPE_TRACK_IMAGE_SOURCE, "uri", uri, NULL);
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}
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