| /* GStreamer |
| * Copyright (C) 2011 Andoni Morales Alastruey <ylatuya@gmail.com> |
| * |
| * gstfragment.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., 51 Franklin St, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #include <glib.h> |
| #include "gstfragment.h" |
| #include "gsturidownloader.h" |
| #include "gsturidownloader_debug.h" |
| |
| #define GST_CAT_DEFAULT uridownloader_debug |
| GST_DEBUG_CATEGORY (uridownloader_debug); |
| |
| #define GST_URI_DOWNLOADER_GET_PRIVATE(obj) \ |
| (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \ |
| GST_TYPE_URI_DOWNLOADER, GstUriDownloaderPrivate)) |
| |
| struct _GstUriDownloaderPrivate |
| { |
| /* Fragments fetcher */ |
| GstElement *urisrc; |
| GstBus *bus; |
| GstPad *pad; |
| GTimeVal *timeout; |
| GstFragment *download; |
| gboolean got_buffer; |
| GMutex download_lock; /* used to restrict to one download only */ |
| |
| GWeakRef parent; |
| |
| GError *err; |
| |
| GCond cond; |
| gboolean cancelled; |
| }; |
| |
| static void gst_uri_downloader_finalize (GObject * object); |
| static void gst_uri_downloader_dispose (GObject * object); |
| |
| static GstFlowReturn gst_uri_downloader_chain (GstPad * pad, GstObject * parent, |
| GstBuffer * buf); |
| static gboolean gst_uri_downloader_sink_event (GstPad * pad, GstObject * parent, |
| GstEvent * event); |
| static GstBusSyncReply gst_uri_downloader_bus_handler (GstBus * bus, |
| GstMessage * message, gpointer data); |
| |
| static gboolean gst_uri_downloader_ensure_src (GstUriDownloader * downloader, |
| const gchar * uri); |
| static void gst_uri_downloader_destroy_src (GstUriDownloader * downloader); |
| |
| static GstStaticPadTemplate sinkpadtemplate = GST_STATIC_PAD_TEMPLATE ("sink", |
| GST_PAD_SINK, |
| GST_PAD_ALWAYS, |
| GST_STATIC_CAPS_ANY); |
| |
| #define _do_init \ |
| { \ |
| GST_DEBUG_CATEGORY_INIT (uridownloader_debug, "uridownloader", 0, "URI downloader"); \ |
| } |
| |
| G_DEFINE_TYPE_WITH_CODE (GstUriDownloader, gst_uri_downloader, GST_TYPE_OBJECT, |
| _do_init); |
| |
| static void |
| gst_uri_downloader_class_init (GstUriDownloaderClass * klass) |
| { |
| GObjectClass *gobject_class; |
| |
| gobject_class = (GObjectClass *) klass; |
| |
| g_type_class_add_private (klass, sizeof (GstUriDownloaderPrivate)); |
| |
| gobject_class->dispose = gst_uri_downloader_dispose; |
| gobject_class->finalize = gst_uri_downloader_finalize; |
| } |
| |
| static void |
| gst_uri_downloader_init (GstUriDownloader * downloader) |
| { |
| downloader->priv = GST_URI_DOWNLOADER_GET_PRIVATE (downloader); |
| |
| /* Initialize the sink pad. This pad will be connected to the src pad of the |
| * element created with gst_element_make_from_uri and will handle the download */ |
| downloader->priv->pad = |
| gst_pad_new_from_static_template (&sinkpadtemplate, "sink"); |
| gst_pad_set_chain_function (downloader->priv->pad, |
| GST_DEBUG_FUNCPTR (gst_uri_downloader_chain)); |
| gst_pad_set_event_function (downloader->priv->pad, |
| GST_DEBUG_FUNCPTR (gst_uri_downloader_sink_event)); |
| gst_pad_set_element_private (downloader->priv->pad, downloader); |
| gst_pad_set_active (downloader->priv->pad, TRUE); |
| |
| /* Create a bus to handle error and warning message from the source element */ |
| downloader->priv->bus = gst_bus_new (); |
| |
| g_mutex_init (&downloader->priv->download_lock); |
| g_cond_init (&downloader->priv->cond); |
| } |
| |
| static void |
| gst_uri_downloader_dispose (GObject * object) |
| { |
| GstUriDownloader *downloader = GST_URI_DOWNLOADER (object); |
| |
| gst_uri_downloader_destroy_src (downloader); |
| |
| if (downloader->priv->bus != NULL) { |
| gst_object_unref (downloader->priv->bus); |
| downloader->priv->bus = NULL; |
| } |
| |
| if (downloader->priv->pad) { |
| gst_object_unref (downloader->priv->pad); |
| downloader->priv->pad = NULL; |
| } |
| |
| if (downloader->priv->download) { |
| g_object_unref (downloader->priv->download); |
| downloader->priv->download = NULL; |
| } |
| |
| g_weak_ref_clear (&downloader->priv->parent); |
| |
| G_OBJECT_CLASS (gst_uri_downloader_parent_class)->dispose (object); |
| } |
| |
| static void |
| gst_uri_downloader_finalize (GObject * object) |
| { |
| GstUriDownloader *downloader = GST_URI_DOWNLOADER (object); |
| |
| g_mutex_clear (&downloader->priv->download_lock); |
| g_cond_clear (&downloader->priv->cond); |
| |
| G_OBJECT_CLASS (gst_uri_downloader_parent_class)->finalize (object); |
| } |
| |
| GstUriDownloader * |
| gst_uri_downloader_new (void) |
| { |
| GstUriDownloader *downloader; |
| |
| downloader = g_object_new (GST_TYPE_URI_DOWNLOADER, NULL); |
| gst_object_ref_sink (downloader); |
| |
| return downloader; |
| } |
| |
| /** |
| * gst_uri_downloader_set_parent: |
| * @param downloader: the #GstUriDownloader |
| * @param parent: the parent #GstElement |
| * |
| * Sets an element as parent of this #GstUriDownloader so that context |
| * requests from the underlying source are proxied to the main pipeline |
| * and set back if a context was provided. |
| */ |
| void |
| gst_uri_downloader_set_parent (GstUriDownloader * downloader, |
| GstElement * parent) |
| { |
| g_weak_ref_set (&downloader->priv->parent, parent); |
| } |
| |
| static gboolean |
| gst_uri_downloader_sink_event (GstPad * pad, GstObject * parent, |
| GstEvent * event) |
| { |
| gboolean ret = FALSE; |
| GstUriDownloader *downloader; |
| |
| downloader = GST_URI_DOWNLOADER (gst_pad_get_element_private (pad)); |
| |
| switch (event->type) { |
| case GST_EVENT_EOS:{ |
| GST_OBJECT_LOCK (downloader); |
| GST_DEBUG_OBJECT (downloader, "Got EOS on the fetcher pad"); |
| if (downloader->priv->download != NULL) { |
| /* signal we have fetched the URI */ |
| downloader->priv->download->completed = TRUE; |
| downloader->priv->download->download_stop_time = |
| gst_util_get_timestamp (); |
| GST_DEBUG_OBJECT (downloader, "Signaling chain funtion"); |
| g_cond_signal (&downloader->priv->cond); |
| } |
| GST_OBJECT_UNLOCK (downloader); |
| gst_event_unref (event); |
| break; |
| } |
| case GST_EVENT_CUSTOM_DOWNSTREAM_STICKY:{ |
| const GstStructure *str; |
| str = gst_event_get_structure (event); |
| if (gst_structure_has_name (str, "http-headers")) { |
| GST_OBJECT_LOCK (downloader); |
| if (downloader->priv->download != NULL) { |
| if (downloader->priv->download->headers) |
| gst_structure_free (downloader->priv->download->headers); |
| downloader->priv->download->headers = gst_structure_copy (str); |
| } |
| GST_OBJECT_UNLOCK (downloader); |
| } |
| } |
| /* falls through */ |
| default: |
| ret = gst_pad_event_default (pad, parent, event); |
| break; |
| } |
| |
| return ret; |
| } |
| |
| static GstBusSyncReply |
| gst_uri_downloader_bus_handler (GstBus * bus, |
| GstMessage * message, gpointer data) |
| { |
| GstUriDownloader *downloader = (GstUriDownloader *) (data); |
| |
| if (GST_MESSAGE_TYPE (message) == GST_MESSAGE_ERROR) { |
| GError *err = NULL; |
| gchar *dbg_info = NULL; |
| gchar *new_error = NULL; |
| |
| gst_message_parse_error (message, &err, &dbg_info); |
| GST_WARNING_OBJECT (downloader, |
| "Received error: %s from %s, the download will be cancelled", |
| err->message, GST_OBJECT_NAME (message->src)); |
| GST_DEBUG ("Debugging info: %s\n", (dbg_info) ? dbg_info : "none"); |
| |
| if (dbg_info) |
| new_error = g_strdup_printf ("%s: %s\n", err->message, dbg_info); |
| if (new_error) { |
| g_free (err->message); |
| err->message = new_error; |
| } |
| |
| if (!downloader->priv->err) |
| downloader->priv->err = err; |
| else |
| g_error_free (err); |
| |
| g_free (dbg_info); |
| |
| /* remove the sync handler to avoid duplicated messages */ |
| gst_bus_set_sync_handler (downloader->priv->bus, NULL, NULL, NULL); |
| |
| /* stop the download */ |
| GST_OBJECT_LOCK (downloader); |
| if (downloader->priv->download != NULL) { |
| GST_DEBUG_OBJECT (downloader, "Stopping download"); |
| g_object_unref (downloader->priv->download); |
| downloader->priv->download = NULL; |
| downloader->priv->cancelled = TRUE; |
| g_cond_signal (&downloader->priv->cond); |
| } |
| GST_OBJECT_UNLOCK (downloader); |
| } else if (GST_MESSAGE_TYPE (message) == GST_MESSAGE_WARNING) { |
| GError *err = NULL; |
| gchar *dbg_info = NULL; |
| |
| gst_message_parse_warning (message, &err, &dbg_info); |
| GST_WARNING_OBJECT (downloader, |
| "Received warning: %s from %s", |
| GST_OBJECT_NAME (message->src), err->message); |
| GST_DEBUG ("Debugging info: %s\n", (dbg_info) ? dbg_info : "none"); |
| g_error_free (err); |
| g_free (dbg_info); |
| } else if (GST_MESSAGE_TYPE (message) == GST_MESSAGE_NEED_CONTEXT) { |
| GstElement *parent = g_weak_ref_get (&downloader->priv->parent); |
| |
| /* post the same need-context as if it was from the parent and then |
| * get it to our internal element that requested it */ |
| if (parent && GST_IS_ELEMENT (GST_MESSAGE_SRC (message))) { |
| const gchar *context_type; |
| GstContext *context; |
| GstElement *msg_src = GST_ELEMENT_CAST (GST_MESSAGE_SRC (message)); |
| |
| gst_message_parse_context_type (message, &context_type); |
| context = gst_element_get_context (parent, context_type); |
| |
| /* No context, request one */ |
| if (!context) { |
| GstMessage *need_context_msg = |
| gst_message_new_need_context (GST_OBJECT_CAST (parent), |
| context_type); |
| gst_element_post_message (parent, need_context_msg); |
| context = gst_element_get_context (parent, context_type); |
| } |
| |
| if (context) { |
| gst_element_set_context (msg_src, context); |
| gst_context_unref (context); |
| } |
| } |
| if (parent) |
| gst_object_unref (parent); |
| } |
| |
| gst_message_unref (message); |
| return GST_BUS_DROP; |
| } |
| |
| static GstFlowReturn |
| gst_uri_downloader_chain (GstPad * pad, GstObject * parent, GstBuffer * buf) |
| { |
| GstUriDownloader *downloader; |
| |
| downloader = GST_URI_DOWNLOADER (gst_pad_get_element_private (pad)); |
| |
| /* HTML errors (404, 500, etc...) are also pushed through this pad as |
| * response but the source element will also post a warning or error message |
| * in the bus, which is handled synchronously cancelling the download. |
| */ |
| GST_OBJECT_LOCK (downloader); |
| if (downloader->priv->download == NULL) { |
| /* Download cancelled, quit */ |
| gst_buffer_unref (buf); |
| GST_OBJECT_UNLOCK (downloader); |
| goto done; |
| } |
| |
| GST_LOG_OBJECT (downloader, "The uri fetcher received a new buffer " |
| "of size %" G_GSIZE_FORMAT, gst_buffer_get_size (buf)); |
| downloader->priv->got_buffer = TRUE; |
| if (!gst_fragment_add_buffer (downloader->priv->download, buf)) { |
| GST_WARNING_OBJECT (downloader, "Could not add buffer to fragment"); |
| gst_buffer_unref (buf); |
| } |
| GST_OBJECT_UNLOCK (downloader); |
| |
| done: |
| { |
| return GST_FLOW_OK; |
| } |
| } |
| |
| void |
| gst_uri_downloader_reset (GstUriDownloader * downloader) |
| { |
| g_return_if_fail (downloader != NULL); |
| |
| GST_OBJECT_LOCK (downloader); |
| downloader->priv->cancelled = FALSE; |
| GST_OBJECT_UNLOCK (downloader); |
| } |
| |
| void |
| gst_uri_downloader_cancel (GstUriDownloader * downloader) |
| { |
| GST_OBJECT_LOCK (downloader); |
| if (downloader->priv->download != NULL) { |
| GST_DEBUG_OBJECT (downloader, "Cancelling download"); |
| g_object_unref (downloader->priv->download); |
| downloader->priv->download = NULL; |
| downloader->priv->cancelled = TRUE; |
| GST_DEBUG_OBJECT (downloader, "Signaling chain funtion"); |
| g_cond_signal (&downloader->priv->cond); |
| } else { |
| gboolean cancelled; |
| |
| cancelled = downloader->priv->cancelled; |
| downloader->priv->cancelled = TRUE; |
| if (cancelled) |
| GST_DEBUG_OBJECT (downloader, |
| "Trying to cancel a download that was alredy cancelled"); |
| } |
| GST_OBJECT_UNLOCK (downloader); |
| } |
| |
| static gboolean |
| gst_uri_downloader_set_range (GstUriDownloader * downloader, |
| gint64 range_start, gint64 range_end) |
| { |
| g_return_val_if_fail (range_start >= 0, FALSE); |
| g_return_val_if_fail (range_end >= -1, FALSE); |
| |
| if (range_start || (range_end >= 0)) { |
| GstEvent *seek; |
| |
| seek = gst_event_new_seek (1.0, GST_FORMAT_BYTES, GST_SEEK_FLAG_FLUSH, |
| GST_SEEK_TYPE_SET, range_start, GST_SEEK_TYPE_SET, range_end); |
| |
| return gst_element_send_event (downloader->priv->urisrc, seek); |
| } |
| return TRUE; |
| } |
| |
| static gboolean |
| gst_uri_downloader_ensure_src (GstUriDownloader * downloader, const gchar * uri) |
| { |
| if (downloader->priv->urisrc) { |
| gchar *old_protocol, *new_protocol; |
| gchar *old_uri; |
| |
| old_uri = |
| gst_uri_handler_get_uri (GST_URI_HANDLER (downloader->priv->urisrc)); |
| old_protocol = gst_uri_get_protocol (old_uri); |
| new_protocol = gst_uri_get_protocol (uri); |
| |
| if (!g_str_equal (old_protocol, new_protocol)) { |
| gst_uri_downloader_destroy_src (downloader); |
| GST_DEBUG_OBJECT (downloader, "Can't re-use old source element"); |
| } else { |
| GError *err = NULL; |
| |
| GST_DEBUG_OBJECT (downloader, "Re-using old source element"); |
| if (!gst_uri_handler_set_uri |
| (GST_URI_HANDLER (downloader->priv->urisrc), uri, &err)) { |
| GST_DEBUG_OBJECT (downloader, |
| "Failed to re-use old source element: %s", err->message); |
| g_clear_error (&err); |
| gst_uri_downloader_destroy_src (downloader); |
| } |
| } |
| g_free (old_uri); |
| g_free (old_protocol); |
| g_free (new_protocol); |
| } |
| |
| if (!downloader->priv->urisrc) { |
| GST_DEBUG_OBJECT (downloader, "Creating source element for the URI:%s", |
| uri); |
| downloader->priv->urisrc = |
| gst_element_make_from_uri (GST_URI_SRC, uri, NULL, NULL); |
| if (downloader->priv->urisrc) { |
| /* gst_element_make_from_uri returns a floating reference |
| * and we are not going to transfer the ownership, so we |
| * should take it. |
| */ |
| gst_object_ref_sink (downloader->priv->urisrc); |
| } |
| } |
| |
| return downloader->priv->urisrc != NULL; |
| } |
| |
| static void |
| gst_uri_downloader_destroy_src (GstUriDownloader * downloader) |
| { |
| if (!downloader->priv->urisrc) |
| return; |
| |
| gst_element_set_state (downloader->priv->urisrc, GST_STATE_NULL); |
| gst_object_unref (downloader->priv->urisrc); |
| downloader->priv->urisrc = NULL; |
| } |
| |
| static gboolean |
| gst_uri_downloader_set_uri (GstUriDownloader * downloader, const gchar * uri, |
| const gchar * referer, gboolean compress, |
| gboolean refresh, gboolean allow_cache) |
| { |
| GstPad *pad; |
| GObjectClass *gobject_class; |
| |
| if (!gst_uri_is_valid (uri)) |
| return FALSE; |
| |
| if (!gst_uri_downloader_ensure_src (downloader, uri)) |
| return FALSE; |
| |
| gobject_class = G_OBJECT_GET_CLASS (downloader->priv->urisrc); |
| if (g_object_class_find_property (gobject_class, "compress")) |
| g_object_set (downloader->priv->urisrc, "compress", compress, NULL); |
| if (g_object_class_find_property (gobject_class, "keep-alive")) |
| g_object_set (downloader->priv->urisrc, "keep-alive", TRUE, NULL); |
| if (g_object_class_find_property (gobject_class, "extra-headers")) { |
| if (referer || refresh || !allow_cache) { |
| GstStructure *extra_headers = gst_structure_new_empty ("headers"); |
| |
| if (referer) |
| gst_structure_set (extra_headers, "Referer", G_TYPE_STRING, referer, |
| NULL); |
| |
| if (!allow_cache) |
| gst_structure_set (extra_headers, "Cache-Control", G_TYPE_STRING, |
| "no-cache", NULL); |
| else if (refresh) |
| gst_structure_set (extra_headers, "Cache-Control", G_TYPE_STRING, |
| "max-age=0", NULL); |
| |
| g_object_set (downloader->priv->urisrc, "extra-headers", extra_headers, |
| NULL); |
| |
| gst_structure_free (extra_headers); |
| } else { |
| g_object_set (downloader->priv->urisrc, "extra-headers", NULL, NULL); |
| } |
| } |
| |
| /* add a sync handler for the bus messages to detect errors in the download */ |
| gst_element_set_bus (GST_ELEMENT (downloader->priv->urisrc), |
| downloader->priv->bus); |
| gst_bus_set_sync_handler (downloader->priv->bus, |
| gst_uri_downloader_bus_handler, downloader, NULL); |
| |
| pad = gst_element_get_static_pad (downloader->priv->urisrc, "src"); |
| if (!pad) |
| return FALSE; |
| gst_pad_link (pad, downloader->priv->pad); |
| gst_object_unref (pad); |
| return TRUE; |
| } |
| |
| static gboolean |
| gst_uri_downloader_set_method (GstUriDownloader * downloader, |
| const gchar * method) |
| { |
| GObjectClass *gobject_class; |
| |
| if (!downloader->priv->urisrc) |
| return FALSE; |
| |
| gobject_class = G_OBJECT_GET_CLASS (downloader->priv->urisrc); |
| if (g_object_class_find_property (gobject_class, "method")) { |
| g_object_set (downloader->priv->urisrc, "method", method, NULL); |
| return TRUE; |
| } |
| return FALSE; |
| } |
| |
| GstFragment * |
| gst_uri_downloader_fetch_uri (GstUriDownloader * downloader, |
| const gchar * uri, const gchar * referer, gboolean compress, |
| gboolean refresh, gboolean allow_cache, GError ** err) |
| { |
| return gst_uri_downloader_fetch_uri_with_range (downloader, uri, |
| referer, compress, refresh, allow_cache, 0, -1, err); |
| } |
| |
| /** |
| * gst_uri_downloader_fetch_uri_with_range: |
| * @downloader: the #GstUriDownloader |
| * @uri: the uri |
| * @range_start: the starting byte index |
| * @range_end: the final byte index, use -1 for unspecified |
| * |
| * Returns the downloaded #GstFragment |
| */ |
| GstFragment * |
| gst_uri_downloader_fetch_uri_with_range (GstUriDownloader * |
| downloader, const gchar * uri, const gchar * referer, gboolean compress, |
| gboolean refresh, gboolean allow_cache, |
| gint64 range_start, gint64 range_end, GError ** err) |
| { |
| GstStateChangeReturn ret; |
| GstFragment *download = NULL; |
| |
| GST_DEBUG_OBJECT (downloader, "Fetching URI %s", uri); |
| |
| g_mutex_lock (&downloader->priv->download_lock); |
| downloader->priv->err = NULL; |
| downloader->priv->got_buffer = FALSE; |
| |
| GST_OBJECT_LOCK (downloader); |
| if (downloader->priv->cancelled) { |
| GST_DEBUG_OBJECT (downloader, "Cancelled, aborting fetch"); |
| goto quit; |
| } |
| |
| if (!gst_uri_downloader_set_uri (downloader, uri, referer, compress, refresh, |
| allow_cache)) { |
| GST_WARNING_OBJECT (downloader, "Failed to set URI"); |
| goto quit; |
| } |
| |
| gst_bus_set_flushing (downloader->priv->bus, FALSE); |
| if (downloader->priv->download) |
| g_object_unref (downloader->priv->download); |
| downloader->priv->download = gst_fragment_new (); |
| downloader->priv->download->range_start = range_start; |
| downloader->priv->download->range_end = range_end; |
| GST_OBJECT_UNLOCK (downloader); |
| ret = gst_element_set_state (downloader->priv->urisrc, GST_STATE_READY); |
| GST_OBJECT_LOCK (downloader); |
| if (ret == GST_STATE_CHANGE_FAILURE || downloader->priv->download == NULL) { |
| GST_WARNING_OBJECT (downloader, "Failed to set src to READY"); |
| goto quit; |
| } |
| |
| /* might have been cancelled because of failures in state change */ |
| if (downloader->priv->cancelled) { |
| goto quit; |
| } |
| |
| if (range_start < 0 && range_end < 0) { |
| if (!gst_uri_downloader_set_method (downloader, "HEAD")) { |
| GST_WARNING_OBJECT (downloader, "Failed to set HTTP method"); |
| goto quit; |
| } |
| } else { |
| if (!gst_uri_downloader_set_range (downloader, range_start, range_end)) { |
| GST_WARNING_OBJECT (downloader, "Failed to set range"); |
| goto quit; |
| } |
| } |
| |
| GST_OBJECT_UNLOCK (downloader); |
| ret = gst_element_set_state (downloader->priv->urisrc, GST_STATE_PLAYING); |
| GST_OBJECT_LOCK (downloader); |
| if (ret == GST_STATE_CHANGE_FAILURE) { |
| if (downloader->priv->download) { |
| g_object_unref (downloader->priv->download); |
| downloader->priv->download = NULL; |
| } |
| goto quit; |
| } |
| |
| /* might have been cancelled because of failures in state change */ |
| if (downloader->priv->cancelled) { |
| goto quit; |
| } |
| |
| /* wait until: |
| * - the download succeed (EOS in the src pad) |
| * - the download failed (Error message on the fetcher bus) |
| * - the download was canceled |
| */ |
| GST_DEBUG_OBJECT (downloader, "Waiting to fetch the URI %s", uri); |
| while (!downloader->priv->cancelled && !downloader->priv->download->completed) |
| g_cond_wait (&downloader->priv->cond, GST_OBJECT_GET_LOCK (downloader)); |
| |
| if (downloader->priv->cancelled) { |
| if (downloader->priv->download) { |
| g_object_unref (downloader->priv->download); |
| downloader->priv->download = NULL; |
| } |
| goto quit; |
| } |
| |
| download = downloader->priv->download; |
| downloader->priv->download = NULL; |
| if (!downloader->priv->got_buffer) { |
| if (download->range_start < 0 && download->range_end < 0) { |
| /* HEAD request, so we don't expect a response */ |
| } else { |
| g_object_unref (download); |
| download = NULL; |
| GST_ERROR_OBJECT (downloader, "Didn't retrieve a buffer before EOS"); |
| } |
| } |
| |
| if (download != NULL) |
| GST_INFO_OBJECT (downloader, "URI fetched successfully"); |
| else |
| GST_INFO_OBJECT (downloader, "Error fetching URI"); |
| |
| quit: |
| { |
| if (downloader->priv->urisrc) { |
| GstPad *pad; |
| GstElement *urisrc; |
| |
| urisrc = downloader->priv->urisrc; |
| |
| GST_DEBUG_OBJECT (downloader, "Stopping source element %s", |
| GST_ELEMENT_NAME (urisrc)); |
| |
| /* remove the bus' sync handler */ |
| gst_bus_set_sync_handler (downloader->priv->bus, NULL, NULL, NULL); |
| gst_bus_set_flushing (downloader->priv->bus, TRUE); |
| |
| /* set the element state to NULL */ |
| GST_OBJECT_UNLOCK (downloader); |
| if (download == NULL) { |
| gst_element_set_state (urisrc, GST_STATE_NULL); |
| } else { |
| GstQuery *query; |
| |
| /* Download successfull, let's query the URI */ |
| query = gst_query_new_uri (); |
| if (gst_element_query (urisrc, query)) { |
| gst_query_parse_uri (query, &download->uri); |
| gst_query_parse_uri_redirection (query, &download->redirect_uri); |
| gst_query_parse_uri_redirection_permanent (query, |
| &download->redirect_permanent); |
| } |
| gst_query_unref (query); |
| gst_element_set_state (urisrc, GST_STATE_READY); |
| } |
| GST_OBJECT_LOCK (downloader); |
| gst_element_set_bus (urisrc, NULL); |
| |
| /* unlink the source element from the internal pad */ |
| pad = gst_pad_get_peer (downloader->priv->pad); |
| if (pad) { |
| gst_pad_unlink (pad, downloader->priv->pad); |
| gst_object_unref (pad); |
| } |
| } |
| GST_OBJECT_UNLOCK (downloader); |
| |
| if (download == NULL) { |
| if (!downloader->priv->err) { |
| g_set_error (err, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_OPEN_READ, |
| "Failed to download '%s'", uri); |
| } else { |
| g_propagate_error (err, downloader->priv->err); |
| downloader->priv->err = NULL; |
| } |
| } |
| |
| downloader->priv->cancelled = FALSE; |
| |
| g_mutex_unlock (&downloader->priv->download_lock); |
| return download; |
| } |
| } |