/* GStreamer * Copyright (C) 1999,2000 Erik Walthinsen * 2000 Wim Taymans * 2001 Bastien Nocera * 2002 Kristian Rietveld * 2002,2003 Colin Walters * * gnomevfssrc.c: * * 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-gnomevfssrc * @short_description: Read from any GnomeVFS-supported location * @see_also: #GstFileSrc, #GstGnomeVFSSink * * * * 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 GnomeVFS library. Common protocols are 'file', 'http', 'ftp', or 'smb'. * * * Example pipeline: * * gst-launch -v gnomevfssrc 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 gnomevfssrc, we could just as well have used the * filesrc element here. * * * Another example pipeline: * * gst-launch -v gnomevfssrc 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. * * * Yet another example pipeline: * * gst-launch -v gnomevfssrc location=http://music.foobar.com/demo.mp3 ! mad ! audioconvert ! audioscale ! alsasink * * The above pipeline will read and decode and play an mp3 file from a * web server using the http protocol. * * * */ #define BROKEN_SIG 1 /*#undef BROKEN_SIG */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "gst/gst-i18n-plugin.h" #include "gstgnomevfssrc.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* gnome-vfs.h doesn't include the following header, which we need: */ #include GST_DEBUG_CATEGORY_STATIC (gnomevfssrc_debug); #define GST_CAT_DEFAULT gnomevfssrc_debug static GStaticMutex count_lock = G_STATIC_MUTEX_INIT; static gint ref_count = 0; static gboolean vfs_owner = FALSE; static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS_ANY); enum { ARG_0, ARG_HANDLE, ARG_LOCATION, ARG_IRADIO_MODE, ARG_IRADIO_NAME, ARG_IRADIO_GENRE, ARG_IRADIO_URL, ARG_IRADIO_TITLE }; static void gst_gnome_vfs_src_base_init (gpointer g_class); static void gst_gnome_vfs_src_class_init (GstGnomeVFSSrcClass * klass); static void gst_gnome_vfs_src_init (GstGnomeVFSSrc * gnomevfssrc); static void gst_gnome_vfs_src_finalize (GObject * object); static void gst_gnome_vfs_src_uri_handler_init (gpointer g_iface, gpointer iface_data); static void gst_gnome_vfs_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_gnome_vfs_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static gboolean gst_gnome_vfs_src_stop (GstBaseSrc * src); static gboolean gst_gnome_vfs_src_start (GstBaseSrc * src); static gboolean gst_gnome_vfs_src_is_seekable (GstBaseSrc * src); static gboolean gst_gnome_vfs_src_get_size (GstBaseSrc * src, guint64 * size); static GstFlowReturn gst_gnome_vfs_src_create (GstBaseSrc * basesrc, guint64 offset, guint size, GstBuffer ** buffer); static int audiocast_init (GstGnomeVFSSrc * src); static int audiocast_register_listener (gint * port, gint * fd); static void audiocast_do_notifications (GstGnomeVFSSrc * src); static gpointer audiocast_thread_run (GstGnomeVFSSrc * src); static void audiocast_thread_kill (GstGnomeVFSSrc * src); static GstElementClass *parent_class = NULL; GType gst_gnome_vfs_src_get_type (void) { static GType gnomevfssrc_type = 0; if (!gnomevfssrc_type) { static const GTypeInfo gnomevfssrc_info = { sizeof (GstGnomeVFSSrcClass), gst_gnome_vfs_src_base_init, NULL, (GClassInitFunc) gst_gnome_vfs_src_class_init, NULL, NULL, sizeof (GstGnomeVFSSrc), 0, (GInstanceInitFunc) gst_gnome_vfs_src_init, }; static const GInterfaceInfo urihandler_info = { gst_gnome_vfs_src_uri_handler_init, NULL, NULL }; gnomevfssrc_type = g_type_register_static (GST_TYPE_BASE_SRC, "GstGnomeVFSSrc", &gnomevfssrc_info, 0); g_type_add_interface_static (gnomevfssrc_type, GST_TYPE_URI_HANDLER, &urihandler_info); } return gnomevfssrc_type; } static void gst_gnome_vfs_src_base_init (gpointer g_class) { GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); static GstElementDetails gst_gnome_vfs_src_details = GST_ELEMENT_DETAILS ("GnomeVFS Source", "Source/File", "Read from any GnomeVFS-supported file", "Bastien Nocera \n" "Ronald S. Bultje "); gst_element_class_add_pad_template (element_class, gst_static_pad_template_get (&srctemplate)); gst_element_class_set_details (element_class, &gst_gnome_vfs_src_details); GST_DEBUG_CATEGORY_INIT (gnomevfssrc_debug, "gnomevfssrc", 0, "Gnome-VFS Source"); } static void gst_gnome_vfs_src_class_init (GstGnomeVFSSrcClass * klass) { GObjectClass *gobject_class; GstElementClass *gstelement_class; GstBaseSrcClass *gstbasesrc_class; gobject_class = G_OBJECT_CLASS (klass); gstelement_class = GST_ELEMENT_CLASS (klass); gstbasesrc_class = GST_BASE_SRC_CLASS (klass); parent_class = g_type_class_peek_parent (klass); gobject_class->finalize = gst_gnome_vfs_src_finalize; gobject_class->set_property = gst_gnome_vfs_src_set_property; gobject_class->get_property = gst_gnome_vfs_src_get_property; /* properties */ gst_element_class_install_std_props (GST_ELEMENT_CLASS (klass), "location", ARG_LOCATION, G_PARAM_READWRITE, NULL); g_object_class_install_property (gobject_class, ARG_HANDLE, g_param_spec_boxed ("handle", "GnomeVFSHandle", "Handle for GnomeVFS", GST_TYPE_GNOME_VFS_HANDLE, G_PARAM_READWRITE)); /* icecast stuff */ g_object_class_install_property (gobject_class, ARG_IRADIO_MODE, g_param_spec_boolean ("iradio-mode", "iradio-mode", "Enable internet radio mode (extraction of icecast/audiocast metadata)", FALSE, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, ARG_IRADIO_NAME, g_param_spec_string ("iradio-name", "iradio-name", "Name of the stream", NULL, G_PARAM_READABLE)); g_object_class_install_property (gobject_class, ARG_IRADIO_GENRE, g_param_spec_string ("iradio-genre", "iradio-genre", "Genre of the stream", NULL, G_PARAM_READABLE)); g_object_class_install_property (gobject_class, ARG_IRADIO_URL, g_param_spec_string ("iradio-url", "iradio-url", "Homepage URL for radio stream", NULL, G_PARAM_READABLE)); g_object_class_install_property (gobject_class, ARG_IRADIO_TITLE, g_param_spec_string ("iradio-title", "iradio-title", "Name of currently playing song", NULL, G_PARAM_READABLE)); gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_gnome_vfs_src_start); gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_gnome_vfs_src_stop); gstbasesrc_class->get_size = GST_DEBUG_FUNCPTR (gst_gnome_vfs_src_get_size); gstbasesrc_class->is_seekable = GST_DEBUG_FUNCPTR (gst_gnome_vfs_src_is_seekable); gstbasesrc_class->create = GST_DEBUG_FUNCPTR (gst_gnome_vfs_src_create); } static void gst_gnome_vfs_src_init (GstGnomeVFSSrc * gnomevfssrc) { gnomevfssrc->uri = NULL; gnomevfssrc->uri_name = NULL; gnomevfssrc->handle = NULL; gnomevfssrc->curoffset = 0; gnomevfssrc->seekable = FALSE; gnomevfssrc->icy_metaint = 0; gnomevfssrc->iradio_mode = FALSE; gnomevfssrc->http_callbacks_pushed = FALSE; gnomevfssrc->icy_count = 0; gnomevfssrc->iradio_name = NULL; gnomevfssrc->iradio_genre = NULL; gnomevfssrc->iradio_url = NULL; gnomevfssrc->iradio_title = NULL; gnomevfssrc->audiocast_udpdata_mutex = g_mutex_new (); gnomevfssrc->audiocast_queue_mutex = g_mutex_new (); gnomevfssrc->audiocast_notify_queue = NULL; gnomevfssrc->audiocast_thread = NULL; g_static_mutex_lock (&count_lock); if (ref_count == 0) { /* gnome vfs engine init */ if (gnome_vfs_initialized () == FALSE) { gnome_vfs_init (); vfs_owner = TRUE; } } ref_count++; g_static_mutex_unlock (&count_lock); } static void gst_gnome_vfs_src_finalize (GObject * object) { GstGnomeVFSSrc *src = GST_GNOME_VFS_SRC (object); g_static_mutex_lock (&count_lock); ref_count--; if (ref_count == 0 && vfs_owner) { if (gnome_vfs_initialized () == TRUE) { gnome_vfs_shutdown (); } } g_static_mutex_unlock (&count_lock); if (src->uri) { gnome_vfs_uri_unref (src->uri); src->uri = NULL; } if (src->uri_name) { g_free (src->uri_name); src->uri_name = NULL; } g_mutex_free (src->audiocast_udpdata_mutex); g_mutex_free (src->audiocast_queue_mutex); G_OBJECT_CLASS (parent_class)->finalize (object); } /* * URI interface support. */ static guint gst_gnome_vfs_src_uri_get_type (void) { return GST_URI_SRC; } static gchar ** gst_gnome_vfs_src_uri_get_protocols (void) { static gchar **protocols = NULL; if (!protocols) protocols = gst_gnomevfs_get_supported_uris (); return protocols; } static const gchar * gst_gnome_vfs_src_uri_get_uri (GstURIHandler * handler) { GstGnomeVFSSrc *src = GST_GNOME_VFS_SRC (handler); return src->uri_name; } static gboolean gst_gnome_vfs_src_uri_set_uri (GstURIHandler * handler, const gchar * uri) { GstGnomeVFSSrc *src = GST_GNOME_VFS_SRC (handler); if (GST_STATE (src) == GST_STATE_PLAYING || GST_STATE (src) == GST_STATE_PAUSED) return FALSE; g_object_set (G_OBJECT (src), "location", uri, NULL); return TRUE; } static void gst_gnome_vfs_src_uri_handler_init (gpointer g_iface, gpointer iface_data) { GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface; iface->get_type = gst_gnome_vfs_src_uri_get_type; iface->get_protocols = gst_gnome_vfs_src_uri_get_protocols; iface->get_uri = gst_gnome_vfs_src_uri_get_uri; iface->set_uri = gst_gnome_vfs_src_uri_set_uri; } static void gst_gnome_vfs_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstGnomeVFSSrc *src; gchar cwd[PATH_MAX]; src = GST_GNOME_VFS_SRC (object); switch (prop_id) { case ARG_LOCATION: /* the element must be stopped or paused in order to do this */ if (GST_STATE (src) == GST_STATE_PLAYING || GST_STATE (src) == GST_STATE_PAUSED) break; if (src->uri) { gnome_vfs_uri_unref (src->uri); src->uri = NULL; } if (src->uri_name) { g_free (src->uri_name); src->uri_name = NULL; } if (g_value_get_string (value)) { const gchar *location = g_value_get_string (value); if (!strchr (location, ':')) { gchar *newloc = gnome_vfs_escape_path_string (location); if (*newloc == '/') src->uri_name = g_strdup_printf ("file://%s", newloc); else src->uri_name = g_strdup_printf ("file://%s/%s", getcwd (cwd, PATH_MAX), newloc); g_free (newloc); } else src->uri_name = g_strdup (location); src->uri = gnome_vfs_uri_new (src->uri_name); } break; case ARG_HANDLE: if (GST_STATE (src) == GST_STATE_NULL || GST_STATE (src) == GST_STATE_READY) { if (src->uri) { gnome_vfs_uri_unref (src->uri); src->uri = NULL; } if (src->uri_name) { g_free (src->uri_name); src->uri_name = NULL; } src->handle = g_value_get_boxed (value); } break; case ARG_IRADIO_MODE: src->iradio_mode = g_value_get_boolean (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_gnome_vfs_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstGnomeVFSSrc *src; src = GST_GNOME_VFS_SRC (object); switch (prop_id) { case ARG_LOCATION: g_value_set_string (value, src->uri_name); break; case ARG_HANDLE: g_value_set_boxed (value, src->handle); break; case ARG_IRADIO_MODE: g_value_set_boolean (value, src->iradio_mode); break; case ARG_IRADIO_NAME: g_value_set_string (value, src->iradio_name); break; case ARG_IRADIO_GENRE: g_value_set_string (value, src->iradio_genre); break; case ARG_IRADIO_URL: g_value_set_string (value, src->iradio_url); break; case ARG_IRADIO_TITLE: g_mutex_lock (src->audiocast_udpdata_mutex); g_value_set_string (value, src->iradio_title); g_mutex_unlock (src->audiocast_udpdata_mutex); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static char * unicodify (const char *str, int len, ...) { char *ret = NULL, *cset; va_list args; gsize bytes_read, bytes_written; if (g_utf8_validate (str, len, NULL)) return g_strndup (str, len >= 0 ? len : strlen (str)); va_start (args, len); while ((cset = va_arg (args, char *)) != NULL) { if (!strcmp (cset, "locale")) ret = g_locale_to_utf8 (str, len, &bytes_read, &bytes_written, NULL); else ret = g_convert (str, len, "UTF-8", cset, &bytes_read, &bytes_written, NULL); if (ret) break; } va_end (args); return ret; } static char * gst_gnome_vfs_src_unicodify (const char *str) { return unicodify (str, -1, "locale", "ISO-8859-1", NULL); } /* * icecast/audiocast metadata extraction support code */ static int audiocast_init (GstGnomeVFSSrc * src) { int pipefds[2]; GError *error = NULL; if (!src->iradio_mode) return TRUE; GST_DEBUG_OBJECT (src, "audiocast: registering listener"); if (audiocast_register_listener (&src->audiocast_port, &src->audiocast_fd) < 0) { GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), ("Unable to listen on UDP port %d", src->audiocast_port)); close (src->audiocast_fd); return FALSE; } GST_DEBUG_OBJECT (src, "audiocast: creating pipe"); src->audiocast_notify_queue = NULL; if (pipe (pipefds) < 0) { close (src->audiocast_fd); return FALSE; } src->audiocast_thread_die_infd = pipefds[0]; src->audiocast_thread_die_outfd = pipefds[1]; GST_DEBUG_OBJECT (src, "audiocast: creating audiocast thread"); src->audiocast_thread = g_thread_create ((GThreadFunc) audiocast_thread_run, src, TRUE, &error); if (error != NULL) { GST_ELEMENT_ERROR (src, RESOURCE, TOO_LAZY, (NULL), ("Unable to create thread: %s", error->message)); close (src->audiocast_fd); return FALSE; } return TRUE; } static int audiocast_register_listener (gint * port, gint * fd) { struct sockaddr_in sin; int sock; socklen_t sinlen = sizeof (struct sockaddr_in); GST_DEBUG ("audiocast: establishing UDP listener"); if ((sock = socket (AF_INET, SOCK_DGRAM, 0)) < 0) goto lose; memset (&sin, 0, sinlen); sin.sin_family = AF_INET; sin.sin_addr.s_addr = g_htonl (INADDR_ANY); if (bind (sock, (struct sockaddr *) &sin, sinlen) < 0) goto lose_and_close; memset (&sin, 0, sinlen); if (getsockname (sock, (struct sockaddr *) &sin, &sinlen) < 0) goto lose_and_close; GST_DEBUG ("audiocast: listening on local %s:%d", inet_ntoa (sin.sin_addr), g_ntohs (sin.sin_port)); *port = g_ntohs (sin.sin_port); *fd = sock; return 0; lose_and_close: close (sock); lose: return -1; } static void audiocast_do_notifications (GstGnomeVFSSrc * src) { /* Send any pending notifications we got from the UDP thread. */ if (src->iradio_mode) { GList *entry; g_mutex_lock (src->audiocast_queue_mutex); for (entry = src->audiocast_notify_queue; entry; entry = entry->next) g_object_notify (G_OBJECT (src), (const gchar *) entry->data); g_list_free (src->audiocast_notify_queue); src->audiocast_notify_queue = NULL; g_mutex_unlock (src->audiocast_queue_mutex); } } static gpointer audiocast_thread_run (GstGnomeVFSSrc * src) { char buf[1025], **lines; gsize len; fd_set fdset, readset; struct sockaddr_in from; socklen_t fromlen = sizeof (struct sockaddr_in); FD_ZERO (&fdset); FD_SET (src->audiocast_fd, &fdset); FD_SET (src->audiocast_thread_die_infd, &fdset); while (1) { GST_DEBUG ("audiocast thread: dropping into select"); readset = fdset; if (select (FD_SETSIZE, &readset, NULL, NULL, NULL) < 0) { perror ("select"); return NULL; } if (FD_ISSET (src->audiocast_thread_die_infd, &readset)) { char buf[1]; GST_DEBUG ("audiocast thread: got die character"); if (read (src->audiocast_thread_die_infd, buf, 1) != 1) g_warning ("gnomevfssrc: could not read from audiocast fd"); close (src->audiocast_thread_die_infd); close (src->audiocast_fd); return NULL; } GST_DEBUG ("audiocast thread: reading data"); len = recvfrom (src->audiocast_fd, buf, sizeof (buf) - 1, 0, (struct sockaddr *) &from, &fromlen); if (len < 0 && errno == EAGAIN) continue; else if (len >= 0) { int i; char *valptr, *value; buf[len] = '\0'; lines = g_strsplit (buf, "\n", 0); if (!lines) continue; for (i = 0; lines[i]; i++) { while ((lines[i][strlen (lines[i]) - 1] == '\n') || (lines[i][strlen (lines[i]) - 1] == '\r')) lines[i][strlen (lines[i]) - 1] = '\0'; valptr = strchr (lines[i], ':'); if (!valptr) continue; else valptr++; g_strstrip (valptr); if (!strlen (valptr)) continue; value = gst_gnome_vfs_src_unicodify (valptr); if (!value) { g_print ("Unable to convert \"%s\" to UTF-8!\n", valptr); continue; } if (!strncmp (lines[i], "x-audiocast-streamtitle", 23)) { g_mutex_lock (src->audiocast_udpdata_mutex); g_free (src->iradio_title); src->iradio_title = value; g_mutex_unlock (src->audiocast_udpdata_mutex); g_mutex_lock (src->audiocast_queue_mutex); src->audiocast_notify_queue = g_list_append (src->audiocast_notify_queue, "iradio-title"); GST_DEBUG_OBJECT (src, "audiocast title: %s\n", src->iradio_title); g_mutex_unlock (src->audiocast_queue_mutex); } else if (!strncmp (lines[i], "x-audiocast-streamurl", 21)) { g_mutex_lock (src->audiocast_udpdata_mutex); g_free (src->iradio_url); src->iradio_url = value; g_mutex_unlock (src->audiocast_udpdata_mutex); g_mutex_lock (src->audiocast_queue_mutex); src->audiocast_notify_queue = g_list_append (src->audiocast_notify_queue, "iradio-url"); GST_DEBUG_OBJECT (src, "audiocast url: %s\n", src->iradio_title); g_mutex_unlock (src->audiocast_queue_mutex); } else if (!strncmp (lines[i], "x-audiocast-udpseqnr", 20)) { gchar outbuf[120]; sprintf (outbuf, "x-audiocast-ack: %ld \r\n", atol (value)); g_free (value); if (sendto (src->audiocast_fd, outbuf, strlen (outbuf), 0, (struct sockaddr *) &from, fromlen) <= 0) { g_print ("Error sending response to server: %s\n", strerror (errno)); continue; } GST_DEBUG_OBJECT (src, "sent audiocast ack: %s\n", outbuf); } } g_strfreev (lines); } } return NULL; } static void audiocast_thread_kill (GstGnomeVFSSrc * src) { if (!src->audiocast_thread) return; /* We rely on this hack to kill the audiocast thread. If we get icecast metadata, then we don't need the audiocast metadata too. */ GST_DEBUG ("audiocast: writing die character"); if (write (src->audiocast_thread_die_outfd, "q", 1) != 1) g_critical ("gnomevfssrc: could not write to audiocast thread fd"); close (src->audiocast_thread_die_outfd); GST_DEBUG ("audiocast: joining thread"); g_thread_join (src->audiocast_thread); src->audiocast_thread = NULL; } static void gst_gnome_vfs_src_send_additional_headers_callback (gconstpointer in, gsize in_size, gpointer out, gsize out_size, gpointer callback_data) { GstGnomeVFSSrc *src = GST_GNOME_VFS_SRC (callback_data); GnomeVFSModuleCallbackAdditionalHeadersOut *out_args = (GnomeVFSModuleCallbackAdditionalHeadersOut *) out; if (!src->iradio_mode) return; GST_DEBUG_OBJECT (src, "sending headers\n"); out_args->headers = g_list_append (out_args->headers, g_strdup ("icy-metadata:1\r\n")); out_args->headers = g_list_append (out_args->headers, g_strdup_printf ("x-audiocast-udpport: %d\r\n", src->audiocast_port)); } static void gst_gnome_vfs_src_received_headers_callback (gconstpointer in, gsize in_size, gpointer out, gsize out_size, gpointer callback_data) { GList *i; gint icy_metaint; GstGnomeVFSSrc *src = GST_GNOME_VFS_SRC (callback_data); GnomeVFSModuleCallbackReceivedHeadersIn *in_args = (GnomeVFSModuleCallbackReceivedHeadersIn *) in; /* This is only used for internet radio stuff right now */ if (!src->iradio_mode) return; for (i = in_args->headers; i; i = i->next) { char *data = (char *) i->data; char *key = data; char *value = strchr (data, ':'); if (!value) continue; value++; g_strstrip (value); if (!strlen (value)) continue; /* Icecast stuff */ if (strncmp (data, "icy-metaint:", 12) == 0) { /* ugh */ if (sscanf (data + 12, "%d", &icy_metaint) == 1) { src->icy_metaint = icy_metaint; GST_DEBUG_OBJECT (src, "got icy-metaint %d, killing audiocast thread", src->icy_metaint); audiocast_thread_kill (src); continue; } } if (!strncmp (data, "icy-", 4)) key = data + 4; else if (!strncmp (data, "x-audiocast-", 12)) key = data + 12; else continue; GST_DEBUG_OBJECT (src, "key: %s", key); if (!strncmp (key, "name", 4)) { g_free (src->iradio_name); src->iradio_name = gst_gnome_vfs_src_unicodify (value); if (src->iradio_name) g_object_notify (G_OBJECT (src), "iradio-name"); } else if (!strncmp (key, "genre", 5)) { g_free (src->iradio_genre); src->iradio_genre = gst_gnome_vfs_src_unicodify (value); if (src->iradio_genre) g_object_notify (G_OBJECT (src), "iradio-genre"); } else if (!strncmp (key, "url", 3)) { g_free (src->iradio_url); src->iradio_url = gst_gnome_vfs_src_unicodify (value); if (src->iradio_url) g_object_notify (G_OBJECT (src), "iradio-url"); } } } static void gst_gnome_vfs_src_push_callbacks (GstGnomeVFSSrc * src) { if (src->http_callbacks_pushed) return; GST_DEBUG_OBJECT (src, "pushing callbacks"); gnome_vfs_module_callback_push (GNOME_VFS_MODULE_CALLBACK_HTTP_SEND_ADDITIONAL_HEADERS, gst_gnome_vfs_src_send_additional_headers_callback, src, NULL); gnome_vfs_module_callback_push (GNOME_VFS_MODULE_CALLBACK_HTTP_RECEIVED_HEADERS, gst_gnome_vfs_src_received_headers_callback, src, NULL); src->http_callbacks_pushed = TRUE; } static void gst_gnome_vfs_src_pop_callbacks (GstGnomeVFSSrc * src) { if (!src->http_callbacks_pushed) return; GST_DEBUG_OBJECT (src, "popping callbacks"); gnome_vfs_module_callback_pop (GNOME_VFS_MODULE_CALLBACK_HTTP_SEND_ADDITIONAL_HEADERS); gnome_vfs_module_callback_pop (GNOME_VFS_MODULE_CALLBACK_HTTP_RECEIVED_HEADERS); } static void gst_gnome_vfs_src_get_icy_metadata (GstGnomeVFSSrc * src) { GnomeVFSFileSize length = 0; GnomeVFSResult res; gint metadata_length; guchar foobyte; guchar *data; guchar *pos; gchar **tags; int i; GST_DEBUG_OBJECT (src, "reading icecast metadata"); while (length == 0) { res = gnome_vfs_read (src->handle, &foobyte, 1, &length); if (res != GNOME_VFS_OK) return; } metadata_length = foobyte * 16; if (metadata_length == 0) return; data = g_new (guchar, metadata_length + 1); pos = data; while (pos - data < metadata_length) { res = gnome_vfs_read (src->handle, pos, metadata_length - (pos - data), &length); /* FIXME: better error handling here? */ if (res != GNOME_VFS_OK) { g_free (data); return; } pos += length; } data[metadata_length] = 0; tags = g_strsplit ((gchar *) data, "';", 0); for (i = 0; tags[i]; i++) { if (!g_ascii_strncasecmp (tags[i], "StreamTitle=", 12)) { g_free (src->iradio_title); src->iradio_title = gst_gnome_vfs_src_unicodify (tags[i] + 13); if (src->iradio_title) { GST_DEBUG_OBJECT (src, "sending notification on icecast title"); g_object_notify (G_OBJECT (src), "iradio-title"); } else g_print ("Unable to convert icecast title \"%s\" to UTF-8!\n", tags[i] + 13); } if (!g_ascii_strncasecmp (tags[i], "StreamUrl=", 10)) { g_free (src->iradio_url); src->iradio_url = gst_gnome_vfs_src_unicodify (tags[i] + 11); if (src->iradio_url) { GST_DEBUG_OBJECT (src, "sending notification on icecast url"); g_object_notify (G_OBJECT (src), "iradio-url"); } else g_print ("Unable to convert icecast url \"%s\" to UTF-8!\n", tags[i] + 11); } } g_strfreev (tags); } /* end of icecast/audiocast metadata extraction support code */ /* * Read a new buffer from src->reqoffset, takes care of events * and seeking and such. */ static GstFlowReturn gst_gnome_vfs_src_create (GstBaseSrc * basesrc, guint64 offset, guint size, GstBuffer ** buffer) { GnomeVFSResult res; GstBuffer *buf; GnomeVFSFileSize readbytes; guint8 *data; GstGnomeVFSSrc *src; src = GST_GNOME_VFS_SRC (basesrc); GST_DEBUG ("now at %llu, reading %lld, size %u", src->curoffset, offset, size); /* seek if required */ if (src->curoffset != offset) { GST_DEBUG ("need to seek"); if (src->seekable) { GST_DEBUG ("seeking to %lld", offset); res = gnome_vfs_seek (src->handle, GNOME_VFS_SEEK_START, offset); if (res != GNOME_VFS_OK) goto seek_failed; src->curoffset = offset; } else { goto cannot_seek; } } audiocast_do_notifications (src); if (src->iradio_mode && src->icy_metaint > 0) { buf = gst_buffer_new_and_alloc (src->icy_metaint); data = GST_BUFFER_DATA (buf); /* try to read */ GST_DEBUG_OBJECT (src, "doing read: icy_count: %" G_GINT64_FORMAT, src->icy_count); res = gnome_vfs_read (src->handle, data, src->icy_metaint - src->icy_count, &readbytes); if (res != GNOME_VFS_OK) goto read_failed; if (readbytes == 0) goto eos; src->icy_count += readbytes; GST_BUFFER_OFFSET (buf) = src->curoffset; GST_BUFFER_SIZE (buf) = readbytes; src->curoffset += readbytes; if (src->icy_count == src->icy_metaint) { gst_gnome_vfs_src_get_icy_metadata (src); src->icy_count = 0; } } else { buf = gst_buffer_new_and_alloc (size); data = GST_BUFFER_DATA (buf); GST_BUFFER_OFFSET (buf) = src->curoffset; res = gnome_vfs_read (src->handle, data, size, &readbytes); GST_BUFFER_SIZE (buf) = readbytes; if (res != GNOME_VFS_OK) goto read_failed; if (readbytes == 0) goto eos; src->curoffset += readbytes; } /* we're done, return the buffer */ *buffer = buf; return GST_FLOW_OK; seek_failed: { GST_ERROR_OBJECT (src, "Failed to seek to requested position %lld: %s", offset, gnome_vfs_result_to_string (res)); return GST_FLOW_ERROR; } cannot_seek: { GST_ERROR_OBJECT (src, "Requested seek from %lld to %lld on non-seekable stream", src->curoffset, offset); return GST_FLOW_ERROR; } read_failed: { gst_buffer_unref (buf); GST_ERROR_OBJECT (src, "Failed to read data: %s", gnome_vfs_result_to_string (res)); return GST_FLOW_ERROR; } eos: { gst_buffer_unref (buf); GST_LOG_OBJECT (src, "Reading data gave EOS"); return GST_FLOW_WRONG_STATE; } } static gboolean gst_gnome_vfs_src_is_seekable (GstBaseSrc * basesrc) { GstGnomeVFSSrc *src; src = GST_GNOME_VFS_SRC (basesrc); return src->seekable; } static gboolean gst_gnome_vfs_src_get_size (GstBaseSrc * basesrc, guint64 * size) { GstGnomeVFSSrc *src; src = GST_GNOME_VFS_SRC (basesrc); GST_DEBUG_OBJECT (src, "size %" G_GUINT64_FORMAT, src->size); if (src->size == (GnomeVFSFileSize) - 1) return FALSE; *size = src->size; return TRUE; } /* open the file, do stuff necessary to go to READY state */ static gboolean gst_gnome_vfs_src_start (GstBaseSrc * basesrc) { GnomeVFSResult res; GnomeVFSFileInfo *info; GstGnomeVFSSrc *src; src = GST_GNOME_VFS_SRC (basesrc); if (!audiocast_init (src)) return FALSE; gst_gnome_vfs_src_push_callbacks (src); if (src->uri != NULL) { if ((res = gnome_vfs_open_uri (&src->handle, src->uri, GNOME_VFS_OPEN_READ)) != GNOME_VFS_OK) { gchar *filename = gnome_vfs_uri_to_string (src->uri, GNOME_VFS_URI_HIDE_PASSWORD); gst_gnome_vfs_src_pop_callbacks (src); audiocast_thread_kill (src); if (res == GNOME_VFS_ERROR_NOT_FOUND) { GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, (NULL), ("Could not open vfs file \"%s\" for reading: %s", filename, gnome_vfs_result_to_string (res))); } else { GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), ("Could not open vfs file \"%s\" for reading: %s", filename, gnome_vfs_result_to_string (res))); } g_free (filename); return FALSE; } src->own_handle = TRUE; } else if (!src->handle) { GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), ("No filename given")); return FALSE; } else { src->own_handle = FALSE; } src->size = (GnomeVFSFileSize) - 1; info = gnome_vfs_file_info_new (); if ((res = gnome_vfs_get_file_info_from_handle (src->handle, info, GNOME_VFS_FILE_INFO_DEFAULT)) == GNOME_VFS_OK) { if (info->valid_fields & GNOME_VFS_FILE_INFO_FIELDS_SIZE) { src->size = info->size; GST_DEBUG_OBJECT (src, "size: %llu bytes", src->size); } else GST_LOG_OBJECT (src, "filesize not known"); } else { GST_WARNING_OBJECT (src, "getting info failed: %s", gnome_vfs_result_to_string (res)); } gnome_vfs_file_info_unref (info); audiocast_do_notifications (src); if (gnome_vfs_seek (src->handle, GNOME_VFS_SEEK_CURRENT, 0) == GNOME_VFS_OK) { src->seekable = TRUE; } else { src->seekable = FALSE; } return TRUE; } static gboolean gst_gnome_vfs_src_stop (GstBaseSrc * basesrc) { GstGnomeVFSSrc *src; src = GST_GNOME_VFS_SRC (basesrc); gst_gnome_vfs_src_pop_callbacks (src); audiocast_thread_kill (src); if (src->own_handle) { gnome_vfs_close (src->handle); src->handle = NULL; } src->size = (GnomeVFSFileSize) - 1; src->curoffset = 0; return TRUE; }