1 /* GStreamer Push File Source
2 * Copyright (C) <2007> Tim-Philipp Müller <tim centricular net>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * SECTION:element-pushfilesrc
24 * This element is only useful for debugging purposes. It implements an URI
25 * protocol handler for the 'pushfile' protocol and behaves like a file source
26 * element that cannot be activated in pull-mode. This makes it very easy to
27 * debug demuxers or decoders that can operate both pull and push-based in
28 * connection with the playbin element (which creates a source based on the
32 * <title>Example launch line</title>
34 * gst-launch -m playbin uri=pushfile:///home/you/some/file.ogg
35 * ]| This plays back the given file using playbin, with the demuxer operating
44 #include "gstpushfilesrc.h"
48 GST_DEBUG_CATEGORY_STATIC (pushfilesrc_debug);
49 #define GST_CAT_DEFAULT pushfilesrc_debug
51 static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
56 static void gst_push_file_src_uri_handler_init (gpointer g_iface,
58 static void gst_file_push_src_add_uri_handler (GType type);
60 GST_BOILERPLATE_FULL (GstPushFileSrc, gst_push_file_src, GstBin, GST_TYPE_BIN,
61 gst_file_push_src_add_uri_handler);
64 gst_file_push_src_add_uri_handler (GType type)
66 static const GInterfaceInfo info = {
67 gst_push_file_src_uri_handler_init,
72 g_type_add_interface_static (type, GST_TYPE_URI_HANDLER, &info);
73 GST_DEBUG_CATEGORY_INIT (pushfilesrc_debug, "pushfilesrc", 0,
74 "pushfilesrc element");
78 gst_push_file_src_base_init (gpointer g_class)
80 GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
82 gst_element_class_add_pad_template (element_class,
83 gst_static_pad_template_get (&srctemplate));
85 gst_element_class_set_details_simple (element_class, "Push File Source",
87 "Implements pushfile:// URI-handler for push-based file access",
88 "Tim-Philipp Müller <tim centricular net>");
92 gst_push_file_src_dispose (GObject * obj)
94 GstPushFileSrc *src = GST_PUSH_FILE_SRC (obj);
97 gst_element_remove_pad (GST_ELEMENT (src), src->srcpad);
101 gst_bin_remove (GST_BIN (src), src->filesrc);
105 G_OBJECT_CLASS (parent_class)->dispose (obj);
109 gst_push_file_src_class_init (GstPushFileSrcClass * g_class)
111 GObjectClass *gobject_class;
113 gobject_class = G_OBJECT_CLASS (g_class);
115 gobject_class->dispose = gst_push_file_src_dispose;
119 gst_push_file_src_ghostpad_checkgetrange (GstPad * pad)
125 gst_push_file_src_init (GstPushFileSrc * src, GstPushFileSrcClass * g_class)
127 src->filesrc = gst_element_factory_make ("filesrc", "real-filesrc");
131 gst_bin_add (GST_BIN (src), src->filesrc);
132 pad = gst_element_get_static_pad (src->filesrc, "src");
133 g_assert (pad != NULL);
134 src->srcpad = gst_ghost_pad_new ("src", pad);
135 /* FIXME^H^HCORE: try pushfile:///foo/bar.ext ! typefind ! fakesink without
136 * this and watch core bugginess (some pad stays in flushing state) */
137 gst_pad_set_checkgetrange_function (src->srcpad,
138 GST_DEBUG_FUNCPTR (gst_push_file_src_ghostpad_checkgetrange));
139 gst_element_add_pad (GST_ELEMENT (src), src->srcpad);
140 gst_object_unref (pad);
144 /*** GSTURIHANDLER INTERFACE *************************************************/
147 gst_push_file_src_uri_get_type (void)
153 gst_push_file_src_uri_get_protocols (void)
155 static gchar *protocols[] = { (char *) "pushfile", NULL };
161 gst_push_file_src_uri_get_uri (GstURIHandler * handler)
163 GstPushFileSrc *src = GST_PUSH_FILE_SRC (handler);
165 if (src->filesrc == NULL)
168 return gst_uri_handler_get_uri (GST_URI_HANDLER (src->filesrc));
172 gst_push_file_src_uri_set_uri (GstURIHandler * handler, const gchar * uri)
174 GstPushFileSrc *src = GST_PUSH_FILE_SRC (handler);
176 if (src->filesrc == NULL || !g_str_has_prefix (uri, "pushfile://"))
179 /* skip 'push' bit */
180 return gst_uri_handler_set_uri (GST_URI_HANDLER (src->filesrc), uri + 4);
184 gst_push_file_src_uri_handler_init (gpointer g_iface, gpointer iface_data)
186 GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
188 iface->get_type = gst_push_file_src_uri_get_type;
189 iface->get_protocols = gst_push_file_src_uri_get_protocols;
190 iface->get_uri = gst_push_file_src_uri_get_uri;
191 iface->set_uri = gst_push_file_src_uri_set_uri;