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175 lines
4.8 KiB
C
175 lines
4.8 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-source
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* @short_description: Base Class for single-media sources
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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-video-title-source.h"
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G_DEFINE_TYPE (GESTrackVideoTitleSource, ges_track_video_title_src,
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GES_TYPE_TRACK_TITLE_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_video_title_src_dispose (GObject * object);
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static void ges_track_video_title_src_finalize (GObject * object);
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static void ges_track_video_title_src_get_property (GObject * object, guint
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property_id, GValue * value, GParamSpec * pspec);
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static void ges_track_video_title_src_set_property (GObject * object, guint
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property_id, const GValue * value, GParamSpec * pspec);
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static GstElement *ges_track_video_title_src_create_element (GESTrackTitleSource
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* self);
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static void
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ges_track_video_title_src_class_init (GESTrackVideoTitleSourceClass * klass)
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{
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GObjectClass *object_class;
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GESTrackTitleSourceClass *bg_class;
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object_class = G_OBJECT_CLASS (klass);
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bg_class = GES_TRACK_TITLE_SOURCE_CLASS (klass);
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object_class->get_property = ges_track_video_title_src_get_property;
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object_class->set_property = ges_track_video_title_src_set_property;
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object_class->dispose = ges_track_video_title_src_dispose;
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object_class->finalize = ges_track_video_title_src_finalize;
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bg_class->create_element = ges_track_video_title_src_create_element;
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}
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static void
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ges_track_video_title_src_init (GESTrackVideoTitleSource * self)
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{
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self->text = NULL;
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self->text_el = NULL;
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self->background_el = NULL;
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}
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static void
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ges_track_video_title_src_dispose (GObject * object)
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{
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GESTrackVideoTitleSource *self = GES_TRACK_VIDEO_TITLE_SOURCE (object);
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if (self->text) {
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g_free (self->text);
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}
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if (self->text_el) {
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g_object_unref (self->text_el);
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self->text_el = NULL;
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}
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if (self->text_el) {
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g_object_unref (self->text_el);
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self->background_el = NULL;
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}
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G_OBJECT_CLASS (ges_track_video_title_src_parent_class)->dispose (object);
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}
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static void
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ges_track_video_title_src_finalize (GObject * object)
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{
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G_OBJECT_CLASS (ges_track_video_title_src_parent_class)->finalize (object);
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}
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static void
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ges_track_video_title_src_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_video_title_src_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_video_title_src_create_element (GESTrackTitleSource * object)
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{
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GESTrackVideoTitleSource *self = GES_TRACK_VIDEO_TITLE_SOURCE (object);
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GstElement *topbin, *background, *text;
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GstPad *src;
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topbin = gst_bin_new ("titlesrc-bin");
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background = gst_element_factory_make ("videotestsrc", "titlesrc-bg");
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text = gst_element_factory_make ("textoverlay", "titlsrc-text");
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if (self->text) {
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g_object_set (text, "text", self->text, NULL);
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}
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gst_bin_add_many (GST_BIN (topbin), background, text, NULL);
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gst_element_link (background, text);
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src = gst_ghost_pad_new ("src", gst_element_get_static_pad (text, "src"));
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gst_element_add_pad (topbin, src);
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g_object_ref (text);
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g_object_ref (background);
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self->text_el = text;
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self->background_el = background;
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return topbin;
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}
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/**
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* ges_track_video_title_source_set_text:
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* @self: the #GESTrackVideoTitleSource* to set text on
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* @text: the text to render. an internal copy of this text will be
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* made.
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*
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* Sets the text this track object will render.
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*
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*/
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void
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ges_track_video_title_source_set_text (GESTrackVideoTitleSource * self,
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const gchar * text)
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{
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self->text = g_strdup (text);
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g_object_set (self->text_el, "text", text, NULL);
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}
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GESTrackVideoTitleSource *
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ges_track_video_title_source_new (void)
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{
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return g_object_new (GES_TYPE_TRACK_VIDEO_TITLE_SOURCE, NULL);
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}
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