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01400183bc
Original commit message from CVS: * ext/gnomevfs/gstgnomevfssink.c: (gst_gnomevfssink_init), (gst_gnomevfssink_handle_event), (gst_gnomevfssink_chain): Implement seeking.
643 lines
17 KiB
C
643 lines
17 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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* 2001 Bastien Nocera <hadess@hadess.net>
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* 2003 Colin Walters <walters@verbum.org>
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*
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* gstgnomevfssink.c:
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gst/gst-i18n-plugin.h"
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#include "gstgnomevfs.h"
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#include "gstgnomevfsuri.h"
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#include <gst/gst.h>
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#include <libgnomevfs/gnome-vfs.h>
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#include <string.h>
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#include <errno.h>
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#define GST_TYPE_GNOMEVFSSINK \
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(gst_gnomevfssink_get_type())
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#define GST_GNOMEVFSSINK(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GNOMEVFSSINK,GstGnomeVFSSink))
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#define GST_GNOMEVFSSINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GNOMEVFSSINK,GstGnomeVFSSinkClass))
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#define GST_IS_GNOMEVFSSINK(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GNOMEVFSSINK))
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#define GST_IS_GNOMEVFSSINK_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GNOMEVFSSINK))
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typedef struct _GstGnomeVFSSink GstGnomeVFSSink;
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typedef struct _GstGnomeVFSSinkClass GstGnomeVFSSinkClass;
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typedef enum
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{
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GST_GNOMEVFSSINK_OPEN = GST_ELEMENT_FLAG_LAST,
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GST_GNOMEVFSSINK_FLAG_LAST = GST_ELEMENT_FLAG_LAST + 2
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}
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GstGnomeVFSSinkFlags;
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struct _GstGnomeVFSSink
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{
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GstElement element;
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/* uri */
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GnomeVFSURI *uri;
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gchar *uri_name;
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/* handle */
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GnomeVFSHandle *handle;
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/* whether we opened the handle ourselves */
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gboolean own_handle;
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};
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struct _GstGnomeVFSSinkClass
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{
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GstElementClass parent_class;
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/* signals */
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gboolean (*erase_ask) (GstElement * element, GnomeVFSURI * uri);
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};
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/* GnomeVFSSink signals and args */
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enum
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{
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/* FILL ME */
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SIGNAL_ERASE_ASK,
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LAST_SIGNAL
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};
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enum
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{
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ARG_0,
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ARG_LOCATION,
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ARG_URI,
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ARG_HANDLE
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};
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static void gst_gnomevfssink_base_init (gpointer g_class);
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static void gst_gnomevfssink_class_init (GstGnomeVFSSinkClass * klass);
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static void gst_gnomevfssink_init (GstGnomeVFSSink * gnomevfssink);
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static void gst_gnomevfssink_dispose (GObject * obj);
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static void gst_gnomevfssink_uri_handler_init (gpointer g_iface,
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gpointer iface_data);
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static void gst_gnomevfssink_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_gnomevfssink_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static gboolean gst_gnomevfssink_open_file (GstGnomeVFSSink * sink);
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static void gst_gnomevfssink_close_file (GstGnomeVFSSink * sink);
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static void gst_gnomevfssink_chain (GstPad * pad, GstData * _data);
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static GstElementStateReturn gst_gnomevfssink_change_state (GstElement *
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element);
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static GstElementClass *parent_class = NULL;
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static guint gst_gnomevfssink_signals[LAST_SIGNAL] = { 0 };
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GType
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gst_gnomevfssink_get_type (void)
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{
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static GType gnomevfssink_type = 0;
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if (!gnomevfssink_type) {
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static const GTypeInfo gnomevfssink_info = {
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sizeof (GstGnomeVFSSinkClass),
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gst_gnomevfssink_base_init,
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NULL,
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(GClassInitFunc) gst_gnomevfssink_class_init,
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NULL,
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NULL,
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sizeof (GstGnomeVFSSink),
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0,
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(GInstanceInitFunc) gst_gnomevfssink_init,
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};
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static const GInterfaceInfo urihandler_info = {
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gst_gnomevfssink_uri_handler_init,
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NULL,
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NULL
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};
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gnomevfssink_type =
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g_type_register_static (GST_TYPE_ELEMENT, "GstGnomeVFSSink",
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&gnomevfssink_info, 0);
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g_type_add_interface_static (gnomevfssink_type, GST_TYPE_URI_HANDLER,
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&urihandler_info);
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}
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return gnomevfssink_type;
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}
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static void
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gst_gnomevfssink_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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static GstElementDetails gst_gnomevfssink_details =
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GST_ELEMENT_DETAILS ("GnomeVFS Sink",
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"Sink/File",
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"Write stream to a GnomeVFS URI",
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"Bastien Nocera <hadess@hadess.net>");
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gst_element_class_set_details (element_class, &gst_gnomevfssink_details);
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}
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static gboolean
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_gst_boolean_allow_overwrite_accumulator (GSignalInvocationHint * ihint,
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GValue * return_accu, const GValue * handler_return, gpointer dummy)
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{
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gboolean allow_overwrite;
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allow_overwrite = g_value_get_boolean (handler_return);
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if (!(ihint->run_type & G_SIGNAL_RUN_CLEANUP))
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g_value_set_boolean (return_accu, allow_overwrite);
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/* stop emission if signal doesn't allow overwriting */
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return allow_overwrite;
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}
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static void
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gst_gnomevfssink_class_init (GstGnomeVFSSinkClass * klass)
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{
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GObjectClass *gobject_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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parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
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gst_element_class_install_std_props (GST_ELEMENT_CLASS (klass),
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"location", ARG_LOCATION, G_PARAM_READWRITE, NULL);
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g_object_class_install_property (gobject_class, ARG_URI,
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g_param_spec_pointer ("uri", "GnomeVFSURI", "URI for GnomeVFS",
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G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, ARG_HANDLE,
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g_param_spec_pointer ("handle",
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"GnomeVFSHandle", "Handle for GnomeVFS", G_PARAM_READWRITE));
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gst_gnomevfssink_signals[SIGNAL_ERASE_ASK] =
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g_signal_new ("allow-overwrite", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_CLEANUP, G_STRUCT_OFFSET (GstGnomeVFSSinkClass, erase_ask),
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_gst_boolean_allow_overwrite_accumulator, NULL,
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gst_marshal_BOOLEAN__POINTER, G_TYPE_BOOLEAN, 1, G_TYPE_POINTER);
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gobject_class->set_property = gst_gnomevfssink_set_property;
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gobject_class->get_property = gst_gnomevfssink_get_property;
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gobject_class->dispose = gst_gnomevfssink_dispose;
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gstelement_class->change_state = gst_gnomevfssink_change_state;
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/* gnome vfs engine init */
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if (gnome_vfs_initialized () == FALSE)
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gnome_vfs_init ();
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}
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static void
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gst_gnomevfssink_dispose (GObject * obj)
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{
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GstGnomeVFSSink *sink = GST_GNOMEVFSSINK (obj);
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if (sink->uri) {
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gnome_vfs_uri_unref (sink->uri);
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sink->uri = NULL;
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}
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if (sink->uri_name) {
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g_free (sink->uri_name);
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sink->uri_name = NULL;
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}
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}
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static void
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gst_gnomevfssink_init (GstGnomeVFSSink * gnomevfssink)
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{
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GstPad *pad;
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GST_FLAG_SET (gnomevfssink, GST_ELEMENT_EVENT_AWARE);
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pad = gst_pad_new ("sink", GST_PAD_SINK);
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gst_element_add_pad (GST_ELEMENT (gnomevfssink), pad);
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gst_pad_set_chain_function (pad, gst_gnomevfssink_chain);
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gnomevfssink->uri = NULL;
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gnomevfssink->uri_name = NULL;
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gnomevfssink->handle = NULL;
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gnomevfssink->own_handle = FALSE;
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}
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static guint
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gst_gnomevfssink_uri_get_type (void)
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{
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return GST_URI_SINK;
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}
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static gchar **
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gst_gnomevfssink_uri_get_protocols (void)
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{
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static gchar **protocols = NULL;
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if (!protocols)
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protocols = gst_gnomevfs_get_supported_uris ();
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return protocols;
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}
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static const gchar *
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gst_gnomevfssink_uri_get_uri (GstURIHandler * handler)
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{
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GstGnomeVFSSink *sink = GST_GNOMEVFSSINK (handler);
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return sink->uri_name;
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}
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static gboolean
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gst_gnomevfssink_uri_set_uri (GstURIHandler * handler, const gchar * uri)
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{
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GstGnomeVFSSink *sink = GST_GNOMEVFSSINK (handler);
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if (GST_STATE (sink) == GST_STATE_PLAYING ||
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GST_STATE (sink) == GST_STATE_PAUSED)
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return FALSE;
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g_object_set (G_OBJECT (sink), "location", uri, NULL);
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return TRUE;
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}
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static void
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gst_gnomevfssink_uri_handler_init (gpointer g_iface, gpointer iface_data)
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{
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GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
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iface->get_type = gst_gnomevfssink_uri_get_type;
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iface->get_protocols = gst_gnomevfssink_uri_get_protocols;
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iface->get_uri = gst_gnomevfssink_uri_get_uri;
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iface->set_uri = gst_gnomevfssink_uri_set_uri;
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}
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static void
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gst_gnomevfssink_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstGnomeVFSSink *sink;
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/* it's not null if we got it, but it might not be ours */
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sink = GST_GNOMEVFSSINK (object);
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switch (prop_id) {
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case ARG_LOCATION:
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if (GST_STATE (sink) == GST_STATE_NULL ||
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GST_STATE (sink) == GST_STATE_READY) {
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if (sink->uri) {
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gnome_vfs_uri_unref (sink->uri);
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sink->uri = NULL;
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}
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if (sink->uri_name) {
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g_free (sink->uri_name);
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sink->uri_name = NULL;
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}
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if (g_value_get_string (value)) {
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sink->uri_name = g_strdup (g_value_get_string (value));
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sink->uri = gnome_vfs_uri_new (sink->uri_name);
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}
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}
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break;
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case ARG_URI:
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if (GST_STATE (sink) == GST_STATE_NULL ||
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GST_STATE (sink) == GST_STATE_READY) {
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if (sink->uri) {
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gnome_vfs_uri_unref (sink->uri);
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sink->uri = NULL;
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}
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if (sink->uri_name) {
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g_free (sink->uri_name);
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sink->uri_name = NULL;
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}
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if (g_value_get_pointer (value)) {
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sink->uri = gnome_vfs_uri_ref (g_value_get_pointer (value));
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sink->uri_name = gnome_vfs_uri_to_string (sink->uri, 0);
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}
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}
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break;
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case ARG_HANDLE:
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if (GST_STATE (sink) == GST_STATE_NULL ||
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GST_STATE (sink) == GST_STATE_READY) {
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if (sink->uri) {
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gnome_vfs_uri_unref (sink->uri);
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sink->uri = NULL;
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}
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if (sink->uri_name) {
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g_free (sink->uri_name);
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sink->uri_name = NULL;
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}
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sink->handle = g_value_get_pointer (value);
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}
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break;
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default:
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break;
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}
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}
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static void
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gst_gnomevfssink_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstGnomeVFSSink *sink;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail (GST_IS_GNOMEVFSSINK (object));
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sink = GST_GNOMEVFSSINK (object);
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switch (prop_id) {
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case ARG_LOCATION:
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g_value_set_string (value, sink->uri_name);
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break;
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case ARG_URI:
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g_value_set_pointer (value, sink->uri);
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break;
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case ARG_HANDLE:
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g_value_set_pointer (value, sink->handle);
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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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gst_gnomevfssink_open_file (GstGnomeVFSSink * sink)
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{
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GnomeVFSResult result;
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g_return_val_if_fail (!GST_FLAG_IS_SET (sink, GST_GNOMEVFSSINK_OPEN), FALSE);
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if (sink->uri) {
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/* open the file */
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result = gnome_vfs_create_uri (&(sink->handle), sink->uri,
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GNOME_VFS_OPEN_WRITE, TRUE,
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GNOME_VFS_PERM_USER_READ | GNOME_VFS_PERM_USER_WRITE
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| GNOME_VFS_PERM_GROUP_READ);
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/* if the file existed and the property says to ask, then ask! */
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if (result == GNOME_VFS_ERROR_FILE_EXISTS) {
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gboolean erase_anyway = FALSE;
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g_signal_emit (G_OBJECT (sink),
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gst_gnomevfssink_signals[SIGNAL_ERASE_ASK], 0, sink->uri,
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&erase_anyway);
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if (erase_anyway) {
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result = gnome_vfs_create_uri (&(sink->handle), sink->uri,
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GNOME_VFS_OPEN_WRITE, FALSE,
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GNOME_VFS_PERM_USER_READ | GNOME_VFS_PERM_USER_WRITE
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| GNOME_VFS_PERM_GROUP_READ);
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}
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}
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GST_DEBUG ("open: %s", gnome_vfs_result_to_string (result));
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if (result != GNOME_VFS_OK) {
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gchar *filename = gnome_vfs_uri_to_string (sink->uri,
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GNOME_VFS_URI_HIDE_PASSWORD);
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GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_WRITE,
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(_("Could not open vfs file \"%s\" for writing: %s."),
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filename, gnome_vfs_result_to_string (result)), GST_ERROR_SYSTEM);
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g_free (filename);
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return FALSE;
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}
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sink->own_handle = TRUE;
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} else if (!sink->handle) {
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GST_ELEMENT_ERROR (sink, RESOURCE, FAILED, (_("No filename given")),
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(NULL));
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return FALSE;
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} else {
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sink->own_handle = FALSE;
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}
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GST_FLAG_SET (sink, GST_GNOMEVFSSINK_OPEN);
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return TRUE;
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}
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static void
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gst_gnomevfssink_close_file (GstGnomeVFSSink * sink)
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{
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GnomeVFSResult result;
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g_return_if_fail (GST_FLAG_IS_SET (sink, GST_GNOMEVFSSINK_OPEN));
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if (sink->own_handle) {
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/* close the file */
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result = gnome_vfs_close (sink->handle);
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if (result != GNOME_VFS_OK) {
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gchar *filename = gnome_vfs_uri_to_string (sink->uri,
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GNOME_VFS_URI_HIDE_PASSWORD);
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GST_ELEMENT_ERROR (sink, RESOURCE, CLOSE,
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(_("Could not close vfs file \"%s\"."), filename), GST_ERROR_SYSTEM);
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g_free (filename);
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}
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sink->own_handle = FALSE;
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sink->handle = NULL;
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}
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GST_FLAG_UNSET (sink, GST_GNOMEVFSSINK_OPEN);
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}
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/**
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* gst_gnomevfssink_handle_event:
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* @sink: reference to GstGnomeVFSSink
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* @event: the event to dispatch
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*
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* Handles the event appropriately (seek, end-of-file, ...)
|
|
*
|
|
* Return value: whether to continue processing or not.
|
|
*/
|
|
|
|
static gboolean
|
|
gst_gnomevfssink_handle_event (GstGnomeVFSSink * sink, GstEvent * event)
|
|
{
|
|
GstEventType type;
|
|
gboolean res = FALSE;
|
|
|
|
type = GST_EVENT_TYPE (event);
|
|
|
|
switch (type) {
|
|
case GST_EVENT_EOS:
|
|
gst_gnomevfssink_close_file (sink);
|
|
gst_element_set_eos (GST_ELEMENT (sink));
|
|
break;
|
|
|
|
case GST_EVENT_DISCONTINUOUS:{
|
|
GnomeVFSResult res;
|
|
gint64 offset;
|
|
|
|
if (gst_event_discont_get_value (event, GST_FORMAT_BYTES, &offset)) {
|
|
if ((res = gnome_vfs_seek (sink->handle, GNOME_VFS_SEEK_START,
|
|
offset)) != GNOME_VFS_OK) {
|
|
GST_ERROR_OBJECT (sink, "Failed to seek to offset %"
|
|
G_GINT64_FORMAT ": %s", offset, gnome_vfs_result_to_string (res));
|
|
}
|
|
}
|
|
|
|
res = TRUE;
|
|
break;
|
|
}
|
|
|
|
case GST_EVENT_SEEK:{
|
|
GnomeVFSResult res;
|
|
GnomeVFSSeekPosition method;
|
|
gint64 offset;
|
|
|
|
if (GST_EVENT_SEEK_FORMAT (event) != GST_FORMAT_BYTES) {
|
|
GST_ERROR_OBJECT (sink, "Can only seek in bytes");
|
|
break;
|
|
}
|
|
|
|
switch (GST_EVENT_SEEK_METHOD (event)) {
|
|
case GST_SEEK_METHOD_SET:
|
|
method = GNOME_VFS_SEEK_START;
|
|
break;
|
|
case GST_SEEK_METHOD_CUR:
|
|
method = GNOME_VFS_SEEK_CURRENT;
|
|
break;
|
|
case GST_SEEK_METHOD_END:
|
|
method = GNOME_VFS_SEEK_END;
|
|
break;
|
|
default:
|
|
GST_ERROR_OBJECT (sink, "Unknown seek method %d",
|
|
GST_EVENT_SEEK_METHOD (event));
|
|
goto end;
|
|
break;
|
|
}
|
|
offset = GST_EVENT_SEEK_OFFSET (event);
|
|
|
|
if (GST_EVENT_SEEK_FLAGS (event) & GST_SEEK_FLAG_FLUSH) {
|
|
/* how does Gnome-VFS flush? */
|
|
}
|
|
|
|
if ((res = gnome_vfs_seek (sink->handle, method, offset)) != GNOME_VFS_OK) {
|
|
GST_ERROR_OBJECT (sink, "Failed to seek to offset %"
|
|
G_GINT64_FORMAT " with method %d: %s", offset, method,
|
|
gnome_vfs_result_to_string (res));
|
|
}
|
|
|
|
res = TRUE;
|
|
break;
|
|
}
|
|
|
|
case GST_EVENT_FLUSH:
|
|
/* how does Gnome-VFS flush? */
|
|
break;
|
|
|
|
default:
|
|
GST_WARNING ("Unhandled event type %d", type);
|
|
gst_pad_event_default (gst_element_get_pad (GST_ELEMENT (sink), "sink"),
|
|
event);
|
|
event = NULL;
|
|
break;
|
|
}
|
|
|
|
end:
|
|
if (event)
|
|
gst_event_unref (event);
|
|
|
|
return res;
|
|
}
|
|
|
|
/**
|
|
* gst_gnomevfssink_chain:
|
|
* @pad: the pad this gnomevfssink is connected to
|
|
* @buf: the buffer that has to be absorbed
|
|
*
|
|
* take the buffer from the pad and write to file if it's open
|
|
*/
|
|
static void
|
|
gst_gnomevfssink_chain (GstPad * pad, GstData * _data)
|
|
{
|
|
GstBuffer *buf;
|
|
GstGnomeVFSSink *sink;
|
|
GnomeVFSResult result;
|
|
GnomeVFSFileSize bytes_written;
|
|
|
|
g_return_if_fail (pad != NULL);
|
|
g_return_if_fail (GST_IS_PAD (pad));
|
|
|
|
sink = GST_GNOMEVFSSINK (gst_pad_get_parent (pad));
|
|
|
|
if (GST_FLAG_IS_SET (sink, GST_GNOMEVFSSINK_OPEN)) {
|
|
if (GST_IS_EVENT (_data)) {
|
|
gst_gnomevfssink_handle_event (sink, GST_EVENT (_data));
|
|
return;
|
|
}
|
|
|
|
buf = GST_BUFFER (_data);
|
|
g_return_if_fail (buf != NULL);
|
|
result =
|
|
gnome_vfs_write (sink->handle, GST_BUFFER_DATA (buf),
|
|
GST_BUFFER_SIZE (buf), &bytes_written);
|
|
GST_DEBUG ("write: %s, written_bytes: %" G_GUINT64_FORMAT,
|
|
gnome_vfs_result_to_string (result), bytes_written);
|
|
if (bytes_written < GST_BUFFER_SIZE (buf)) {
|
|
printf ("gnomevfssink : Warning : %d bytes should be written, only %"
|
|
G_GUINT64_FORMAT " bytes written\n", GST_BUFFER_SIZE (buf),
|
|
bytes_written);
|
|
}
|
|
}
|
|
gst_data_unref (_data);
|
|
}
|
|
|
|
static GstElementStateReturn
|
|
gst_gnomevfssink_change_state (GstElement * element)
|
|
{
|
|
g_return_val_if_fail (GST_IS_GNOMEVFSSINK (element), GST_STATE_FAILURE);
|
|
|
|
switch (GST_STATE_TRANSITION (element)) {
|
|
case GST_STATE_READY_TO_PAUSED:
|
|
if (!GST_FLAG_IS_SET (element, GST_GNOMEVFSSINK_OPEN)) {
|
|
if (!gst_gnomevfssink_open_file (GST_GNOMEVFSSINK (element)))
|
|
return GST_STATE_FAILURE;
|
|
}
|
|
break;
|
|
case GST_STATE_PAUSED_TO_READY:
|
|
if (GST_FLAG_IS_SET (element, GST_GNOMEVFSSINK_OPEN))
|
|
gst_gnomevfssink_close_file (GST_GNOMEVFSSINK (element));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (GST_ELEMENT_CLASS (parent_class)->change_state)
|
|
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
|
|
|
|
return GST_STATE_SUCCESS;
|
|
}
|