--- /dev/null
+/* GStreamer
+ *
+ * Copyright (C) 2007 Rene Stadler <mail@renestadler.de>
+ * Copyright (C) 2007-2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
+ *
+ * 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-giosrc
+ * @see_also: #GstFileSrc, #GstGnomeVFSSrc, #GstGioSink
+ *
+ * This plugin reads data from a local or remote location specified
+ * by an URI. This location can be specified using any protocol supported by
+ * the GIO library or it's VFS backends. Common protocols are 'file', 'http',
+ * 'ftp', or 'smb'.
+ *
+ * If an URI or #GFile is not mounted giosrc will post a message of type
+ * %GST_MESSAGE_ELEMENT with name "not-mounted" on the bus. The message
+ * also contains the #GFile and the corresponding URI.
+ * Applications can use the "not-mounted" message to mount the #GFile
+ * by calling g_file_mount_enclosing_volume() and then restart the
+ * pipeline after the mounting has succeeded. Note that right after the
+ * "not-mounted" message a normal error message is posted on the bus which
+ * should be ignored if "not-mounted" is handled by the application, for
+ * example by calling gst_bus_set_flushing(bus, TRUE) after the "not-mounted"
+ * message was received and gst_bus_set_flushing(bus, FALSE) after the
+ * mounting was successful.
+ *
+ * <refsect2>
+ * <title>Example launch lines</title>
+ * |[
+ * gst-launch -v giosrc location=file:///home/joe/foo.xyz ! fakesink
+ * ]| The above pipeline will simply read a local file and do nothing with the
+ * data read. Instead of giosrc, we could just as well have used the
+ * filesrc element here.
+ * |[
+ * gst-launch -v giosrc location=smb://othercomputer/foo.xyz ! filesink location=/home/joe/foo.xyz
+ * ]| The above pipeline will copy a file from a remote host to the local file
+ * system using the Samba protocol.
+ * |[
+ * gst-launch -v giosrc location=http://music.foobar.com/demo.mp3 ! mad ! audioconvert ! audioresample ! alsasink
+ * ]| The above pipeline will read and decode and play an mp3 file from a
+ * web server using the http protocol.
+ * </refsect2>
+ */
+
+/* FIXME: We would like to mount the enclosing volume of an URL
+ * if it isn't mounted yet but this is possible async-only.
+ * Unfortunately this requires a running main loop from the
+ * default context and we can't guarantuee this!
+ *
+ * We would also like to do authentication while mounting.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "gstgiosrc.h"
+#include <string.h>
+
+GST_DEBUG_CATEGORY_STATIC (gst_gio_src_debug);
+#define GST_CAT_DEFAULT gst_gio_src_debug
+
+enum
+{
+ PROP_0,
+ PROP_LOCATION,
+ PROP_FILE
+};
+
+GST_BOILERPLATE_FULL (GstGioSrc, gst_gio_src, GstGioBaseSrc,
+ GST_TYPE_GIO_BASE_SRC, gst_gio_uri_handler_do_init);
+
+static void gst_gio_src_finalize (GObject * object);
+
+static void gst_gio_src_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_gio_src_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
+
+static GInputStream *gst_gio_src_get_stream (GstGioBaseSrc * bsrc);
+
+static gboolean gst_gio_src_check_get_range (GstBaseSrc * base_src);
+
+static void
+gst_gio_src_base_init (gpointer gclass)
+{
+ GstElementClass *element_class = GST_ELEMENT_CLASS (gclass);
+
+ GST_DEBUG_CATEGORY_INIT (gst_gio_src_debug, "gio_src", 0, "GIO source");
+
+ gst_element_class_set_details_simple (element_class, "GIO source",
+ "Source/File",
+ "Read from any GIO-supported location",
+ "Ren\xc3\xa9 Stadler <mail@renestadler.de>, "
+ "Sebastian Dröge <sebastian.droege@collabora.co.uk>");
+}
+
+static void
+gst_gio_src_class_init (GstGioSrcClass * klass)
+{
+ GObjectClass *gobject_class = (GObjectClass *) klass;
+ GstBaseSrcClass *gstbasesrc_class = (GstBaseSrcClass *) klass;
+ GstGioBaseSrcClass *gstgiobasesrc_class = (GstGioBaseSrcClass *) klass;
+
+ gobject_class->finalize = gst_gio_src_finalize;
+ gobject_class->set_property = gst_gio_src_set_property;
+ gobject_class->get_property = gst_gio_src_get_property;
+
+ g_object_class_install_property (gobject_class, PROP_LOCATION,
+ g_param_spec_string ("location", "Location", "URI location to read from",
+ NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ /**
+ * GstGioSrc:file
+ *
+ * %GFile to read from.
+ *
+ * Since: 0.10.20
+ **/
+ g_object_class_install_property (gobject_class, PROP_FILE,
+ g_param_spec_object ("file", "File", "GFile to read from",
+ G_TYPE_FILE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ gstbasesrc_class->check_get_range =
+ GST_DEBUG_FUNCPTR (gst_gio_src_check_get_range);
+
+ gstgiobasesrc_class->get_stream = GST_DEBUG_FUNCPTR (gst_gio_src_get_stream);
+ gstgiobasesrc_class->close_on_stop = TRUE;
+}
+
+static void
+gst_gio_src_init (GstGioSrc * src, GstGioSrcClass * gclass)
+{
+}
+
+static void
+gst_gio_src_finalize (GObject * object)
+{
+ GstGioSrc *src = GST_GIO_SRC (object);
+
+ if (src->file) {
+ g_object_unref (src->file);
+ src->file = NULL;
+ }
+
+ GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (object));
+}
+
+static void
+gst_gio_src_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstGioSrc *src = GST_GIO_SRC (object);
+
+ switch (prop_id) {
+ case PROP_LOCATION:{
+ const gchar *uri = NULL;
+
+ if (GST_STATE (src) == GST_STATE_PLAYING ||
+ GST_STATE (src) == GST_STATE_PAUSED) {
+ GST_WARNING
+ ("Setting a new location or GFile not supported in PLAYING or PAUSED state");
+ break;
+ }
+
+ GST_OBJECT_LOCK (GST_OBJECT (src));
+ if (src->file)
+ g_object_unref (src->file);
+
+ uri = g_value_get_string (value);
+
+ if (uri) {
+ src->file = g_file_new_for_uri (uri);
+
+ if (!src->file) {
+ GST_ERROR ("Could not create GFile for URI '%s'", uri);
+ }
+ } else {
+ src->file = NULL;
+ }
+ GST_OBJECT_UNLOCK (GST_OBJECT (src));
+ break;
+ }
+ case PROP_FILE:
+ if (GST_STATE (src) == GST_STATE_PLAYING ||
+ GST_STATE (src) == GST_STATE_PAUSED) {
+ GST_WARNING
+ ("Setting a new location or GFile not supported in PLAYING or PAUSED state");
+ break;
+ }
+
+ GST_OBJECT_LOCK (GST_OBJECT (src));
+ if (src->file)
+ g_object_unref (src->file);
+
+ src->file = g_value_dup_object (value);
+
+ GST_OBJECT_UNLOCK (GST_OBJECT (src));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_gio_src_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec)
+{
+ GstGioSrc *src = GST_GIO_SRC (object);
+
+ switch (prop_id) {
+ case PROP_LOCATION:{
+ gchar *uri;
+
+ GST_OBJECT_LOCK (GST_OBJECT (src));
+ if (src->file) {
+ uri = g_file_get_uri (src->file);
+ g_value_set_string (value, uri);
+ g_free (uri);
+ } else {
+ g_value_set_string (value, NULL);
+ }
+ GST_OBJECT_UNLOCK (GST_OBJECT (src));
+ break;
+ }
+ case PROP_FILE:
+ GST_OBJECT_LOCK (GST_OBJECT (src));
+ g_value_set_object (value, src->file);
+ GST_OBJECT_UNLOCK (GST_OBJECT (src));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static gboolean
+gst_gio_src_check_get_range (GstBaseSrc * base_src)
+{
+ GstGioSrc *src = GST_GIO_SRC (base_src);
+ gchar *scheme;
+
+ if (src->file == NULL)
+ goto done;
+
+ scheme = g_file_get_uri_scheme (src->file);
+ if (scheme == NULL)
+ goto done;
+
+ if (strcmp (scheme, "file") == 0) {
+ GST_LOG_OBJECT (src, "local URI, assuming random access is possible");
+ g_free (scheme);
+ return TRUE;
+ } else if (strcmp (scheme, "http") == 0 || strcmp (scheme, "https") == 0) {
+ GST_LOG_OBJECT (src, "blacklisted protocol '%s', "
+ "no random access possible", scheme);
+ g_free (scheme);
+ return FALSE;
+ }
+
+ g_free (scheme);
+
+done:
+
+ GST_DEBUG_OBJECT (src, "undecided about random access, asking base class");
+
+ return GST_CALL_PARENT_WITH_DEFAULT (GST_BASE_SRC_CLASS,
+ check_get_range, (base_src), FALSE);
+}
+
+
+static GInputStream *
+gst_gio_src_get_stream (GstGioBaseSrc * bsrc)
+{
+ GstGioSrc *src = GST_GIO_SRC (bsrc);
+ GError *err = NULL;
+ GInputStream *stream;
+ GCancellable *cancel = bsrc->cancel;
+ gchar *uri = NULL;
+
+ if (src->file == NULL) {
+ GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
+ ("No location or GFile given"));
+ return NULL;
+ }
+
+ uri = g_file_get_uri (src->file);
+ if (!uri)
+ uri = g_strdup ("(null)");
+
+ stream = G_INPUT_STREAM (g_file_read (src->file, cancel, &err));
+
+ if (stream == NULL && !gst_gio_error (src, "g_file_read", &err, NULL)) {
+ if (GST_GIO_ERROR_MATCHES (err, NOT_FOUND)) {
+ GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, (NULL),
+ ("Could not open location %s for reading: %s", uri, err->message));
+ } else if (GST_GIO_ERROR_MATCHES (err, NOT_MOUNTED)) {
+ gst_element_post_message (GST_ELEMENT_CAST (src),
+ gst_message_new_element (GST_OBJECT_CAST (src),
+ gst_structure_new ("not-mounted", "file", G_TYPE_FILE, src->file,
+ "uri", G_TYPE_STRING, uri, NULL)));
+
+ GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
+ ("Location %s not mounted: %s", uri, err->message));
+ } else {
+ GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
+ ("Could not open location %s for reading: %s", uri, err->message));
+ }
+
+ g_free (uri);
+ g_clear_error (&err);
+ return NULL;
+ } else if (stream == NULL) {
+ g_free (uri);
+ return NULL;
+ }
+
+ GST_DEBUG_OBJECT (src, "opened location %s", uri);
+ g_free (uri);
+
+ return stream;
+}
projects / mafwsubrenderer / blobdiff