1 /* GStreamer

     2  * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>

     3  *                    2000 Wim Taymans <wtay@chello.be>

     4  *                    2001 Bastien Nocera <hadess@hadess.net>

     5  *                    2003 Colin Walters <walters@verbum.org>

     6  *                    2005 Tim-Philipp Müller <tim centricular net>

     7  *

     8  * gstgnomevfssink.c: 

     9  *

    10  * This library is free software; you can redistribute it and/or

    11  * modify it under the terms of the GNU Library General Public

    12  * License as published by the Free Software Foundation; either

    13  * version 2 of the License, or (at your option) any later version.

    14  *

    15  * This library is distributed in the hope that it will be useful,

    16  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    18  * Library General Public License for more details.

    19  *

    20  * You should have received a copy of the GNU Library General Public

    21  * License along with this library; if not, write to the

    22  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

    23  * Boston, MA 02111-1307, USA.

    24  */

    25 

    26 /**

    27  * SECTION:element-gnomevfssink

    28  * @short_description: Write a stream to a GnomeVFS URI

    29  * @see_also: #GstFileSink, #GstGnomeVFSSrc

    30  *

    31  * <refsect2>

    32  * <para>

    33  * This plugin writes incoming data to a local or remote location specified

    34  * by an URI. This location can be specified using any protocol supported by

    35  * the GnomeVFS library. Common protocols are 'file', 'ftp', or 'smb'.

    36  * </para>

    37  * <para>

    38  * Example pipeline:

    39  * <programlisting>

    40  * gst-launch -v filesrc location=input.xyz ! gnomevfssink location=file:///home/joe/out.xyz

    41  * </programlisting>

    42  * The above pipeline will simply copy a local file. Instead of gnomevfssink,

    43  * we could just as well have used the filesink element here.

    44  * </para>

    45  * <para>

    46  * Another example pipeline:

    47  * <programlisting>

    48  * gst-launch -v filesrc location=foo.mp3 ! mad ! flacenc ! gnomevfssink location=smb://othercomputer/foo.flac

    49  * </programlisting>

    50  * The above pipeline will re-encode an mp3 file into FLAC format and store

    51  * it on a remote host using the Samba protocol.

    52  * </para>

    53  * <para>

    54  * Applications can connect to the allow-overwrite signal to receive a callback when an

    55  * existing file will be overwritten. The return value of the signal will determine if

    56  * gnomevfssink will overwrite the resource or abort with an error.

    57  * </para>

    58  * </refsect2>

    59  *

    60  * Last reviewed on 2006-02-28 (0.10.4)

    61  */

    62 

    63 #ifdef HAVE_CONFIG_H

    64 #include "config.h"

    65 #endif

    66 

    67 #include "gstgnomevfssink.h"

    68 

    69 #include "gst/gst-i18n-plugin.h"

    70 

    71 #include <gst/gst.h>

    72 #include <libgnomevfs/gnome-vfs.h>

    73 #include <string.h>

    74 #include <errno.h>

    75 

    76 static const GstElementDetails gst_gnome_vfs_sink_details =

    77 GST_ELEMENT_DETAILS ("GnomeVFS Sink",

    78     "Sink/File",

    79     "Write a stream to a GnomeVFS URI",

    80     "Bastien Nocera <hadess@hadess.net>");

    81 

    82 enum

    83 {

    84   SIGNAL_ERASE_ASK,

    85   LAST_SIGNAL

    86 };

    87 

    88 enum

    89 {

    90   ARG_0,

    91   ARG_LOCATION,

    92   ARG_URI,

    93   ARG_HANDLE

    94 };

    95 

    96 static void gst_gnome_vfs_sink_finalize (GObject * obj);

    97 

    98 static void gst_gnome_vfs_sink_uri_handler_init (gpointer g_iface,

    99     gpointer iface_data);

   100 

   101 static void gst_gnome_vfs_sink_set_property (GObject * object, guint prop_id,

   102     const GValue * value, GParamSpec * pspec);

   103 static void gst_gnome_vfs_sink_get_property (GObject * object, guint prop_id,

   104     GValue * value, GParamSpec * pspec);

   105 

   106 static gboolean gst_gnome_vfs_sink_open_file (GstGnomeVFSSink * sink);

   107 static void gst_gnome_vfs_sink_close_file (GstGnomeVFSSink * sink);

   108 static gboolean gst_gnome_vfs_sink_start (GstBaseSink * basesink);

   109 static gboolean gst_gnome_vfs_sink_stop (GstBaseSink * basesink);

   110 static GstFlowReturn gst_gnome_vfs_sink_render (GstBaseSink * basesink,

   111     GstBuffer * buffer);

   112 static gboolean gst_gnome_vfs_sink_handle_event (GstBaseSink * basesink,

   113     GstEvent * event);

   114 static gboolean gst_gnome_vfs_sink_query (GstPad * pad, GstQuery * query);

   115 

   116 static guint gst_gnome_vfs_sink_signals[LAST_SIGNAL];   /* all 0 */

   117 

   118 static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",

   119     GST_PAD_SINK,

   120     GST_PAD_ALWAYS,

   121     GST_STATIC_CAPS_ANY);

   122 

   123 GST_DEBUG_CATEGORY_STATIC (gst_gnome_vfs_sink_debug);

   124 #define GST_CAT_DEFAULT gst_gnome_vfs_sink_debug

   125 

   126 static void

   127 gst_gnome_vfs_sink_do_init (GType type)

   128 {

   129   static const GInterfaceInfo urihandler_info = {

   130     gst_gnome_vfs_sink_uri_handler_init,

   131     NULL,

   132     NULL

   133   };

   134 

   135   g_type_add_interface_static (type, GST_TYPE_URI_HANDLER, &urihandler_info);

   136 

   137   GST_DEBUG_CATEGORY_INIT (gst_gnome_vfs_sink_debug, "gnomevfssink", 0,

   138       "Gnome VFS sink element");

   139 }

   140 

   141 GST_BOILERPLATE_FULL (GstGnomeVFSSink, gst_gnome_vfs_sink, GstBaseSink,

   142     GST_TYPE_BASE_SINK, gst_gnome_vfs_sink_do_init);

   143 

   144 static void

   145 gst_gnome_vfs_sink_base_init (gpointer g_class)

   146 {

   147   GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);

   148 

   149   gst_element_class_add_pad_template (element_class,

   150       gst_static_pad_template_get (&sinktemplate));

   151 

   152   gst_element_class_set_details (element_class, &gst_gnome_vfs_sink_details);

   153 }

   154 

   155 static gboolean

   156 _gst_boolean_allow_overwrite_accumulator (GSignalInvocationHint * ihint,

   157     GValue * return_accu, const GValue * handler_return, gpointer dummy)

   158 {

   159   gboolean allow_overwrite;

   160 

   161   allow_overwrite = g_value_get_boolean (handler_return);

   162   if (!(ihint->run_type & G_SIGNAL_RUN_CLEANUP))

   163     g_value_set_boolean (return_accu, allow_overwrite);

   164 

   165   /* stop emission if signal doesn't allow overwriting */

   166   return allow_overwrite;

   167 }

   168 

   169 static void

   170 gst_gnome_vfs_sink_class_init (GstGnomeVFSSinkClass * klass)

   171 {

   172   GstBaseSinkClass *basesink_class;

   173   GObjectClass *gobject_class;

   174 

   175   gobject_class = (GObjectClass *) klass;

   176   basesink_class = (GstBaseSinkClass *) klass;

   177 

   178   gobject_class->set_property = gst_gnome_vfs_sink_set_property;

   179   gobject_class->get_property = gst_gnome_vfs_sink_get_property;

   180   gobject_class->finalize = gst_gnome_vfs_sink_finalize;

   181 

   182   g_object_class_install_property (gobject_class, ARG_LOCATION,

   183       g_param_spec_string ("location", "File Location",

   184           "Location of the file to write", NULL, G_PARAM_READWRITE));

   185   g_object_class_install_property (gobject_class, ARG_URI,

   186       g_param_spec_boxed ("uri", "GnomeVFSURI", "URI for GnomeVFS",

   187           GST_TYPE_GNOME_VFS_URI, G_PARAM_READWRITE));

   188   g_object_class_install_property (gobject_class, ARG_HANDLE,

   189       g_param_spec_boxed ("handle",

   190           "GnomeVFSHandle", "Handle for GnomeVFS",

   191           GST_TYPE_GNOME_VFS_HANDLE, G_PARAM_READWRITE));

   192 

   193   /**

   194    * GstGnomeVFSSink::allow-overwrite

   195    * @sink: the object which received the signal

   196    * @uri: the URI to be overwritten

   197    *

   198    * This signal is fired when gnomevfssink is about to overwrite an

   199    * existing resource. The application can connect to this signal and ask

   200    * the user if the resource may be overwritten. 

   201    *

   202    * Returns: A boolean indicating that the resource may be overwritten.

   203    */

   204   gst_gnome_vfs_sink_signals[SIGNAL_ERASE_ASK] =

   205       g_signal_new ("allow-overwrite", G_TYPE_FROM_CLASS (klass),

   206       G_SIGNAL_RUN_CLEANUP, G_STRUCT_OFFSET (GstGnomeVFSSinkClass, erase_ask),

   207       _gst_boolean_allow_overwrite_accumulator, NULL,

   208       gst_marshal_BOOLEAN__POINTER, G_TYPE_BOOLEAN, 1, GST_TYPE_GNOME_VFS_URI);

   209 

   210   basesink_class->stop = GST_DEBUG_FUNCPTR (gst_gnome_vfs_sink_stop);

   211   basesink_class->start = GST_DEBUG_FUNCPTR (gst_gnome_vfs_sink_start);

   212   basesink_class->event = GST_DEBUG_FUNCPTR (gst_gnome_vfs_sink_handle_event);

   213   basesink_class->render = GST_DEBUG_FUNCPTR (gst_gnome_vfs_sink_render);

   214   basesink_class->get_times = NULL;

   215 }

   216 

   217 static void

   218 gst_gnome_vfs_sink_finalize (GObject * obj)

   219 {

   220   GstGnomeVFSSink *sink = GST_GNOME_VFS_SINK (obj);

   221 

   222   if (sink->uri) {

   223     gnome_vfs_uri_unref (sink->uri);

   224     sink->uri = NULL;

   225   }

   226 

   227   if (sink->uri_name) {

   228     g_free (sink->uri_name);

   229     sink->uri_name = NULL;

   230   }

   231 

   232   G_OBJECT_CLASS (parent_class)->finalize (obj);

   233 }

   234 

   235 static void

   236 gst_gnome_vfs_sink_init (GstGnomeVFSSink * sink, GstGnomeVFSSinkClass * klass)

   237 {

   238   gst_pad_set_query_function (GST_BASE_SINK_PAD (sink),

   239       GST_DEBUG_FUNCPTR (gst_gnome_vfs_sink_query));

   240 

   241   sink->uri = NULL;

   242   sink->uri_name = NULL;

   243   sink->handle = NULL;

   244   sink->own_handle = FALSE;

   245   sink->current_pos = 0;

   246 

   247   GST_BASE_SINK (sink)->sync = FALSE;

   248 }

   249 

   250 static void

   251 gst_gnome_vfs_sink_set_property (GObject * object, guint prop_id,

   252     const GValue * value, GParamSpec * pspec)

   253 {

   254   GstGnomeVFSSink *sink;

   255   GstState cur_state;

   256 

   257   sink = GST_GNOME_VFS_SINK (object);

   258 

   259   gst_element_get_state (GST_ELEMENT (sink), &cur_state, NULL, 0);

   260 

   261   if (cur_state == GST_STATE_PLAYING || cur_state == GST_STATE_PAUSED) {

   262     GST_WARNING_OBJECT (sink, "cannot set property when PAUSED or PLAYING");

   263     return;

   264   }

   265 

   266   GST_OBJECT_LOCK (sink);

   267 

   268   switch (prop_id) {

   269     case ARG_LOCATION:{

   270       const gchar *new_location;

   271 

   272       if (sink->uri) {

   273         gnome_vfs_uri_unref (sink->uri);

   274         sink->uri = NULL;

   275       }

   276       if (sink->uri_name) {

   277         g_free (sink->uri_name);

   278         sink->uri_name = NULL;

   279       }

   280 

   281       new_location = g_value_get_string (value);

   282       if (new_location) {

   283         sink->uri_name = gst_gnome_vfs_location_to_uri_string (new_location);

   284         sink->uri = gnome_vfs_uri_new (sink->uri_name);

   285       }

   286       break;

   287     }

   288     case ARG_URI:{

   289       if (sink->uri) {

   290         gnome_vfs_uri_unref (sink->uri);

   291         sink->uri = NULL;

   292       }

   293       if (sink->uri_name) {

   294         g_free (sink->uri_name);

   295         sink->uri_name = NULL;

   296       }

   297       if (g_value_get_boxed (value)) {

   298         sink->uri = (GnomeVFSURI *) g_value_dup_boxed (value);

   299         sink->uri_name = gnome_vfs_uri_to_string (sink->uri, 0);

   300       }

   301       break;

   302     }

   303     case ARG_HANDLE:{

   304       if (sink->uri) {

   305         gnome_vfs_uri_unref (sink->uri);

   306         sink->uri = NULL;

   307       }

   308       if (sink->uri_name) {

   309         g_free (sink->uri_name);

   310         sink->uri_name = NULL;

   311       }

   312       sink->handle = g_value_get_boxed (value);

   313       break;

   314     }

   315     default:

   316       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);

   317       break;

   318   }

   319 

   320   GST_OBJECT_UNLOCK (sink);

   321 }

   322 

   323 static void

   324 gst_gnome_vfs_sink_get_property (GObject * object, guint prop_id,

   325     GValue * value, GParamSpec * pspec)

   326 {

   327   GstGnomeVFSSink *sink;

   328 

   329   sink = GST_GNOME_VFS_SINK (object);

   330 

   331   GST_OBJECT_LOCK (sink);

   332 

   333   switch (prop_id) {

   334     case ARG_LOCATION:

   335       g_value_set_string (value, sink->uri_name);

   336       break;

   337     case ARG_URI:

   338       g_value_set_boxed (value, sink->uri);

   339       break;

   340     case ARG_HANDLE:

   341       g_value_set_boxed (value, sink->handle);

   342       break;

   343     default:

   344       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);

   345       break;

   346   }

   347 

   348   GST_OBJECT_UNLOCK (sink);

   349 }

   350 

   351 static gboolean

   352 gst_gnome_vfs_sink_open_file (GstGnomeVFSSink * sink)

   353 {

   354   GnomeVFSResult result;

   355 

   356   if (sink->uri) {

   357     /* open the file, all permissions, umask will apply */

   358     result = gnome_vfs_create_uri (&(sink->handle), sink->uri,

   359         GNOME_VFS_OPEN_WRITE, TRUE,

   360         GNOME_VFS_PERM_USER_READ | GNOME_VFS_PERM_USER_WRITE |

   361         GNOME_VFS_PERM_GROUP_READ | GNOME_VFS_PERM_GROUP_WRITE |

   362         GNOME_VFS_PERM_OTHER_READ | GNOME_VFS_PERM_OTHER_WRITE);

   363 

   364     /* if the file existed and the property says to ask, then ask! */

   365     if (result == GNOME_VFS_ERROR_FILE_EXISTS) {

   366       gboolean erase_anyway = FALSE;

   367 

   368       g_signal_emit (G_OBJECT (sink),

   369           gst_gnome_vfs_sink_signals[SIGNAL_ERASE_ASK], 0, sink->uri,

   370           &erase_anyway);

   371       if (erase_anyway) {

   372         result = gnome_vfs_create_uri (&(sink->handle), sink->uri,

   373             GNOME_VFS_OPEN_WRITE, FALSE,

   374             GNOME_VFS_PERM_USER_READ | GNOME_VFS_PERM_USER_WRITE |

   375             GNOME_VFS_PERM_GROUP_READ | GNOME_VFS_PERM_GROUP_WRITE |

   376             GNOME_VFS_PERM_OTHER_READ | GNOME_VFS_PERM_OTHER_WRITE);

   377       }

   378     }

   379 

   380     GST_DEBUG_OBJECT (sink, "open: %s", gnome_vfs_result_to_string (result));

   381 

   382     if (result != GNOME_VFS_OK) {

   383       gchar *filename = gnome_vfs_uri_to_string (sink->uri,

   384           GNOME_VFS_URI_HIDE_PASSWORD);

   385 

   386       GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_WRITE,

   387           (_("Could not open vfs file \"%s\" for writing: %s."),

   388               filename, gnome_vfs_result_to_string (result)), GST_ERROR_SYSTEM);

   389       g_free (filename);

   390       return FALSE;

   391     }

   392     sink->own_handle = TRUE;

   393   } else if (!sink->handle) {

   394     GST_ELEMENT_ERROR (sink, RESOURCE, FAILED, (_("No filename given")),

   395         (NULL));

   396     return FALSE;

   397   } else {

   398     sink->own_handle = FALSE;

   399   }

   400 

   401   sink->current_pos = 0;

   402 

   403   return TRUE;

   404 }

   405 

   406 static void

   407 gst_gnome_vfs_sink_close_file (GstGnomeVFSSink * sink)

   408 {

   409   GnomeVFSResult result;

   410 

   411   if (sink->own_handle) {

   412     /* close the file */

   413     result = gnome_vfs_close (sink->handle);

   414 

   415     if (result != GNOME_VFS_OK) {

   416       gchar *filename = gnome_vfs_uri_to_string (sink->uri,

   417           GNOME_VFS_URI_HIDE_PASSWORD);

   418 

   419       GST_ELEMENT_ERROR (sink, RESOURCE, CLOSE,

   420           (_("Could not close vfs file \"%s\"."), filename), GST_ERROR_SYSTEM);

   421       g_free (filename);

   422     }

   423 

   424     sink->own_handle = FALSE;

   425     sink->handle = NULL;

   426   }

   427 }

   428 

   429 static gboolean

   430 gst_gnome_vfs_sink_start (GstBaseSink * basesink)

   431 {

   432   gboolean ret;

   433 

   434   ret = gst_gnome_vfs_sink_open_file (GST_GNOME_VFS_SINK (basesink));

   435 

   436   return ret;

   437 }

   438 

   439 static gboolean

   440 gst_gnome_vfs_sink_stop (GstBaseSink * basesink)

   441 {

   442   GST_DEBUG_OBJECT (basesink, "closing ...");

   443   gst_gnome_vfs_sink_close_file (GST_GNOME_VFS_SINK (basesink));

   444   return TRUE;

   445 }

   446 

   447 static gboolean

   448 gst_gnome_vfs_sink_handle_event (GstBaseSink * basesink, GstEvent * event)

   449 {

   450   GstGnomeVFSSink *sink;

   451   gboolean ret = TRUE;

   452 

   453   sink = GST_GNOME_VFS_SINK (basesink);

   454 

   455   GST_DEBUG_OBJECT (sink, "processing %s event", GST_EVENT_TYPE_NAME (event));

   456 

   457   switch (GST_EVENT_TYPE (event)) {

   458     case GST_EVENT_NEWSEGMENT:{

   459       GnomeVFSResult res;

   460       GstFormat format;

   461       gint64 offset;

   462 

   463       gst_event_parse_new_segment (event, NULL, NULL, &format, &offset,

   464           NULL, NULL);

   465 

   466       if (format != GST_FORMAT_BYTES) {

   467         GST_WARNING_OBJECT (sink, "ignored NEWSEGMENT event in %s format",

   468             gst_format_get_name (format));

   469         break;

   470       }

   471 

   472       GST_LOG_OBJECT (sink, "seeking to offset %" G_GINT64_FORMAT, offset);

   473       res = gnome_vfs_seek (sink->handle, GNOME_VFS_SEEK_START, offset);

   474 

   475       if (res != GNOME_VFS_OK) {

   476         GST_ERROR_OBJECT (sink, "Failed to seek to offset %"

   477             G_GINT64_FORMAT ": %s", offset, gnome_vfs_result_to_string (res));

   478         ret = FALSE;

   479       } else {

   480         sink->current_pos = offset;

   481       }

   482 

   483       break;

   484     }

   485 

   486     case GST_EVENT_FLUSH_START:

   487     case GST_EVENT_EOS:{

   488       /* No need to flush with GnomeVfs */

   489       break;

   490     }

   491     default:

   492       break;

   493   }

   494 

   495   return ret;

   496 }

   497 

   498 static gboolean

   499 gst_gnome_vfs_sink_query (GstPad * pad, GstQuery * query)

   500 {

   501   GstGnomeVFSSink *sink;

   502   GstFormat format;

   503 

   504   sink = GST_GNOME_VFS_SINK (GST_PAD_PARENT (pad));

   505 

   506   switch (GST_QUERY_TYPE (query)) {

   507     case GST_QUERY_POSITION:

   508       gst_query_parse_position (query, &format, NULL);

   509       switch (format) {

   510         case GST_FORMAT_DEFAULT:

   511         case GST_FORMAT_BYTES:

   512           gst_query_set_position (query, GST_FORMAT_BYTES, sink->current_pos);

   513           return TRUE;

   514         default:

   515           return FALSE;

   516       }

   517 

   518     case GST_QUERY_FORMATS:

   519       gst_query_set_formats (query, 2, GST_FORMAT_DEFAULT, GST_FORMAT_BYTES);

   520       return TRUE;

   521 

   522     default:

   523       return gst_pad_query_default (pad, query);

   524   }

   525 }

   526 

   527 static GstFlowReturn

   528 gst_gnome_vfs_sink_render (GstBaseSink * basesink, GstBuffer * buf)

   529 {

   530   GnomeVFSFileSize written, cur_pos;

   531   GstGnomeVFSSink *sink;

   532   GnomeVFSResult result;

   533   GstFlowReturn ret;

   534 

   535   sink = GST_GNOME_VFS_SINK (basesink);

   536 

   537   if (gnome_vfs_tell (sink->handle, &cur_pos) == GNOME_VFS_OK) {

   538     /* bring up to date with current position for proper reporting */

   539     sink->current_pos = cur_pos;

   540   }

   541 

   542   result = gnome_vfs_write (sink->handle, GST_BUFFER_DATA (buf),

   543       GST_BUFFER_SIZE (buf), &written);

   544 

   545   switch (result) {

   546     case GNOME_VFS_OK:{

   547       GST_DEBUG_OBJECT (sink, "wrote %" G_GINT64_FORMAT " bytes at %"

   548           G_GINT64_FORMAT, (gint64) written, (gint64) cur_pos);

   549 

   550       if (written < GST_BUFFER_SIZE (buf)) {

   551         /* FIXME: what to do here? (tpm) */

   552         g_warning ("%s: %d bytes should be written, only %"

   553             G_GUINT64_FORMAT " bytes written", G_STRLOC,

   554             GST_BUFFER_SIZE (buf), written);

   555       }

   556 

   557       sink->current_pos += GST_BUFFER_SIZE (buf);

   558       ret = GST_FLOW_OK;

   559       break;

   560     }

   561     case GNOME_VFS_ERROR_NO_SPACE:{

   562       /* TODO: emit signal/send msg on out-of-diskspace and

   563        * handle this gracefully (see open bug) (tpm) */

   564       GST_ELEMENT_ERROR (sink, RESOURCE, NO_SPACE_LEFT, (NULL),

   565           ("bufsize=%u, written=%u", GST_BUFFER_SIZE (buf), (guint) written));

   566       ret = GST_FLOW_ERROR;

   567       break;

   568     }

   569     default:{

   570       gchar *filename = gnome_vfs_uri_to_string (sink->uri,

   571           GNOME_VFS_URI_HIDE_PASSWORD);

   572 

   573       GST_ELEMENT_ERROR (sink, RESOURCE, WRITE,

   574           (_("Error while writing to file \"%s\"."), filename),

   575           ("%s, bufsize=%u, written=%u", gnome_vfs_result_to_string (result),

   576               GST_BUFFER_SIZE (buf), (guint) written));

   577 

   578       g_free (filename);

   579       ret = GST_FLOW_ERROR;

   580       break;

   581     }

   582   }

   583 

   584   return GST_FLOW_OK;

   585 }

   586 

   587 /*** GSTURIHANDLER INTERFACE *************************************************/

   588 

   589 static GstURIType

   590 gst_gnome_vfs_sink_uri_get_type (void)

   591 {

   592   return GST_URI_SINK;

   593 }

   594 

   595 static gchar **

   596 gst_gnome_vfs_sink_uri_get_protocols (void)

   597 {

   598   static gchar **protocols = NULL;

   599 

   600   if (!protocols)

   601     protocols = gst_gnomevfs_get_supported_uris ();

   602 

   603   return protocols;

   604 }

   605 

   606 static const gchar *

   607 gst_gnome_vfs_sink_uri_get_uri (GstURIHandler * handler)

   608 {

   609   GstGnomeVFSSink *sink = GST_GNOME_VFS_SINK (handler);

   610 

   611   return sink->uri_name;

   612 }

   613 

   614 static gboolean

   615 gst_gnome_vfs_sink_uri_set_uri (GstURIHandler * handler, const gchar * uri)

   616 {

   617   GstGnomeVFSSink *sink = GST_GNOME_VFS_SINK (handler);

   618   GstState cur_state;

   619 

   620   gst_element_get_state (GST_ELEMENT (sink), &cur_state, NULL, 0);

   621 

   622   if (cur_state == GST_STATE_PLAYING || cur_state == GST_STATE_PAUSED) {

   623     GST_WARNING_OBJECT (sink, "cannot set uri when PAUSED or PLAYING");

   624     return FALSE;

   625   }

   626 

   627   g_object_set (sink, "location", uri, NULL);

   628 

   629   return TRUE;

   630 }

   631 

   632 static void

   633 gst_gnome_vfs_sink_uri_handler_init (gpointer g_iface, gpointer iface_data)

   634 {

   635   GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;

   636 

   637   iface->get_type = gst_gnome_vfs_sink_uri_get_type;

   638   iface->get_protocols = gst_gnome_vfs_sink_uri_get_protocols;

   639   iface->get_uri = gst_gnome_vfs_sink_uri_get_uri;

   640   iface->set_uri = gst_gnome_vfs_sink_uri_set_uri;

   641 }