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181 lines
5.1 KiB
C
181 lines
5.1 KiB
C
/* Gnonlin
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* Copyright (C) <2005-2008> Edward Hervey <bilboed@bilboed.com>
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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 "nle.h"
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#include "nleurisource.h"
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/**
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* SECTION:element-nleurisource
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*
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* NleURISource is a #NleSource which reads and decodes the contents
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* of a given file. The data in the file is decoded using any available
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* GStreamer plugins.
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*/
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static GstStaticPadTemplate nle_urisource_src_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_SOMETIMES,
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GST_STATIC_CAPS_ANY);
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GST_DEBUG_CATEGORY_STATIC (nleurisource);
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#define GST_CAT_DEFAULT nleurisource
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#define _do_init \
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GST_DEBUG_CATEGORY_INIT (nleurisource, "nleurisource", GST_DEBUG_FG_BLUE | GST_DEBUG_BOLD, "GNonLin URI Source Element");
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#define nle_urisource_parent_class parent_class
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G_DEFINE_TYPE_WITH_CODE (NleURISource, nle_urisource, NLE_TYPE_SOURCE,
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_do_init);
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enum
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{
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ARG_0,
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ARG_URI,
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};
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static gboolean nle_urisource_prepare (NleObject * object);
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static void
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nle_urisource_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void
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nle_urisource_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void
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nle_urisource_class_init (NleURISourceClass * klass)
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{
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GObjectClass *gobject_class;
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NleObjectClass *nleobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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nleobject_class = (NleObjectClass *) klass;
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parent_class = g_type_class_ref (NLE_TYPE_SOURCE);
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gst_element_class_set_static_metadata (gstelement_class, "GNonLin URI Source",
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"Filter/Editor",
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"High-level URI Source element", "Edward Hervey <bilboed@bilboed.com>");
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gobject_class->set_property = GST_DEBUG_FUNCPTR (nle_urisource_set_property);
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gobject_class->get_property = GST_DEBUG_FUNCPTR (nle_urisource_get_property);
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g_object_class_install_property (gobject_class, ARG_URI,
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g_param_spec_string ("uri", "Uri",
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"Uri of the file to use", NULL, G_PARAM_READWRITE));
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gst_element_class_add_static_pad_template (gstelement_class,
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&nle_urisource_src_template);
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nleobject_class->prepare = nle_urisource_prepare;
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}
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static void
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pad_added_cb (GstElement * element, GstPad * srcpad, GstPad * ghostpad)
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{
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gst_ghost_pad_set_target (GST_GHOST_PAD (ghostpad), srcpad);
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}
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static void
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nle_urisource_init (NleURISource * urisource)
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{
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GstElement *bin, *decodebin = NULL;
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GstPad *ghostpad;
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GST_OBJECT_FLAG_SET (urisource, NLE_OBJECT_SOURCE);
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/* We create a bin with source and decodebin within */
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urisource->decodebin = decodebin =
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gst_element_factory_make ("uridecodebin", "internal-uridecodebin");
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g_object_set (decodebin, "expose-all-streams", FALSE, NULL);
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bin = gst_bin_new ("internal-bin");
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gst_bin_add (GST_BIN (bin), decodebin);
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ghostpad = gst_ghost_pad_new_no_target ("src", GST_PAD_SRC);
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gst_element_add_pad (bin, ghostpad);
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gst_bin_add (GST_BIN (urisource), bin);
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g_signal_connect (decodebin, "pad-added", G_CALLBACK (pad_added_cb),
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ghostpad);
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}
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static inline void
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nle_urisource_set_uri (NleURISource * fs, const gchar * uri)
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{
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g_object_set (fs->decodebin, "uri", uri, NULL);
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}
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static void
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nle_urisource_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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NleURISource *fs = (NleURISource *) object;
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switch (prop_id) {
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case ARG_URI:
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nle_urisource_set_uri (fs, g_value_get_string (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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nle_urisource_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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NleURISource *fs = (NleURISource *) object;
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switch (prop_id) {
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case ARG_URI:
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g_object_get_property ((GObject *) fs->decodebin, "uri", value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static gboolean
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nle_urisource_prepare (NleObject * object)
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{
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NleURISource *fs = (NleURISource *) object;
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GST_DEBUG ("prepare");
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/* Set the caps on uridecodebin */
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if (!gst_caps_is_any (object->caps)) {
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GST_DEBUG_OBJECT (object, "Setting uridecodebin caps to %" GST_PTR_FORMAT,
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object->caps);
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g_object_set (fs->decodebin, "caps", object->caps, NULL);
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}
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return NLE_OBJECT_CLASS (parent_class)->prepare (object);
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}
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