--- /dev/null
+/* GStreamer Push File Source
+ * Copyright (C) <2007> Tim-Philipp Müller <tim centricular net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/**
+ * SECTION:element-pushfilesrc
+ * @short_description: Works like a filesrc, but only push-based (for debugging)
+ * @see_also: filesrc
+ *
+ * <refsect2>
+ * <para>
+ * This element is only useful for debugging purposes. It implements an URI
+ * protocol handler for the 'pushfile' protocol and behaves like a file source
+ * element that cannot be activated in pull-mode. This makes it very easy to
+ * debug demuxers or decoders that can operate both pull and push-based in
+ * connection with the playbin element (which creates a source based on the
+ * URI passed).
+ * </para>
+ * <title>Example launch line</title>
+ * <para>
+ * <programlisting>
+ * gst-launch -m playbin uri=pushfile:///home/you/some/file.ogg
+ * </programlisting>
+ * This plays back the given file using playbin, with the demuxer operating
+ * push-based.
+ * </para>
+ * </refsect2>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstpushfilesrc.h"
+
+#include <gst/gst.h>
+
+GST_DEBUG_CATEGORY_STATIC (pushfilesrc_debug);
+#define GST_CAT_DEFAULT pushfilesrc_debug
+
+static const GstElementDetails pushfilesrc_details =
+GST_ELEMENT_DETAILS ("Push File Source",
+ "Testing",
+ "Implements pushfile:// URI-handler for push-based file access",
+ "Tim-Philipp Müller <tim centricular net>");
+
+static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS_ANY);
+
+static void gst_push_file_src_uri_handler_init (gpointer g_iface,
+ gpointer iface_data);
+static void gst_file_push_src_add_uri_handler (GType type);
+
+GST_BOILERPLATE_FULL (GstPushFileSrc, gst_push_file_src, GstBin, GST_TYPE_BIN,
+ gst_file_push_src_add_uri_handler);
+
+static void
+gst_file_push_src_add_uri_handler (GType type)
+{
+ static const GInterfaceInfo info = {
+ gst_push_file_src_uri_handler_init,
+ NULL,
+ NULL
+ };
+
+ g_type_add_interface_static (type, GST_TYPE_URI_HANDLER, &info);
+ GST_DEBUG_CATEGORY_INIT (pushfilesrc_debug, "pushfilesrc", 0,
+ "pushfilesrc element");
+}
+
+static void
+gst_push_file_src_base_init (gpointer g_class)
+{
+ GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
+
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&srctemplate));
+
+ gst_element_class_set_details (element_class, &pushfilesrc_details);
+}
+
+static void
+gst_push_file_src_dispose (GObject * obj)
+{
+ GstPushFileSrc *src = GST_PUSH_FILE_SRC (obj);
+
+ if (src->srcpad) {
+ gst_element_remove_pad (GST_ELEMENT (src), src->srcpad);
+ src->srcpad = NULL;
+ }
+ if (src->filesrc) {
+ gst_bin_remove (GST_BIN (src), src->filesrc);
+ src->filesrc = NULL;
+ }
+
+ G_OBJECT_CLASS (parent_class)->dispose (obj);
+}
+
+static void
+gst_push_file_src_class_init (GstPushFileSrcClass * g_class)
+{
+ GObjectClass *gobject_class;
+
+ gobject_class = G_OBJECT_CLASS (g_class);
+
+ gobject_class->dispose = gst_push_file_src_dispose;
+}
+
+static gboolean
+gst_push_file_src_ghostpad_checkgetrange (GstPad * pad)
+{
+ return FALSE;
+}
+
+static void
+gst_push_file_src_init (GstPushFileSrc * src, GstPushFileSrcClass * g_class)
+{
+ src->filesrc = gst_element_factory_make ("filesrc", "real-filesrc");
+ if (src->filesrc) {
+ GstPad *pad;
+
+ gst_bin_add (GST_BIN (src), src->filesrc);
+ pad = gst_element_get_static_pad (src->filesrc, "src");
+ g_assert (pad != NULL);
+ src->srcpad = gst_ghost_pad_new ("src", pad);
+ /* FIXME^H^HCORE: try pushfile:///foo/bar.ext ! typefind ! fakesink without
+ * this and watch core bugginess (some pad stays in flushing state) */
+ gst_pad_set_checkgetrange_function (src->srcpad,
+ GST_DEBUG_FUNCPTR (gst_push_file_src_ghostpad_checkgetrange));
+ gst_element_add_pad (GST_ELEMENT (src), src->srcpad);
+ gst_object_unref (pad);
+ }
+}
+
+/*** GSTURIHANDLER INTERFACE *************************************************/
+
+static GstURIType
+gst_push_file_src_uri_get_type (void)
+{
+ return GST_URI_SRC;
+}
+static gchar **
+gst_push_file_src_uri_get_protocols (void)
+{
+ static gchar *protocols[] = { "pushfile", NULL };
+
+ return protocols;
+}
+static const gchar *
+gst_push_file_src_uri_get_uri (GstURIHandler * handler)
+{
+ GstPushFileSrc *src = GST_PUSH_FILE_SRC (handler);
+
+ if (src->filesrc == NULL)
+ return NULL;
+
+ return gst_uri_handler_get_uri (GST_URI_HANDLER (src->filesrc));
+}
+
+static gboolean
+gst_push_file_src_uri_set_uri (GstURIHandler * handler, const gchar * uri)
+{
+ GstPushFileSrc *src = GST_PUSH_FILE_SRC (handler);
+
+ if (src->filesrc == NULL || !g_str_has_prefix (uri, "pushfile://"))
+ return FALSE;
+
+ /* skip 'push' bit */
+ return gst_uri_handler_set_uri (GST_URI_HANDLER (src->filesrc), uri + 4);
+}
+
+static void
+gst_push_file_src_uri_handler_init (gpointer g_iface, gpointer iface_data)
+{
+ GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
+
+ iface->get_type = gst_push_file_src_uri_get_type;
+ iface->get_protocols = gst_push_file_src_uri_get_protocols;
+ iface->get_uri = gst_push_file_src_uri_get_uri;
+ iface->set_uri = gst_push_file_src_uri_set_uri;
+}
+
+gboolean
+gst_push_file_src_plugin_init (GstPlugin * plugin)
+{
+ return gst_element_register (plugin, "pushfilesrc", GST_RANK_NONE,
+ GST_TYPE_PUSH_FILE_SRC);
+}
--- /dev/null
+/* GStreamer Push File Source
+ * Copyright (C) <2007> Tim-Philipp Müller <tim centricular net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GST_PUSH_FILE_SRC_H__
+#define __GST_PUSH_FILE_SRC_H__
+
+#include <gst/gstbin.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_PUSH_FILE_SRC \
+ (gst_push_file_src_get_type())
+#define GST_PUSH_FILE_SRC(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PUSH_FILE_SRC,GstPushFileSrc))
+#define GST_PUSH_FILE_SRC_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PUSH_FILE_SRC,GstPushFileSrcClass))
+#define GST_IS_PUSH_FILE_SRC(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PUSH_FILE_SRC))
+#define GST_IS_PUSH_FILE_SRC_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PUSH_FILE_SRC))
+
+typedef struct _GstPushFileSrc GstPushFileSrc;
+typedef struct _GstPushFileSrcClass GstPushFileSrcClass;
+
+struct _GstPushFileSrc
+{
+ GstBin parent;
+
+ /*< private >*/
+ GstElement *filesrc;
+ GstPad *srcpad;
+};
+
+struct _GstPushFileSrcClass
+{
+ GstBinClass parent_class;
+};
+
+G_END_DECLS
+
+#endif /* __GST_PUSH_FILE_SRC_H__*/
+
projects / platform / upstream / gstreamer.git / commitdiff