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uridownloader: add new gst_uri_downloader_set_parent

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If set, the parent is used to proxy need-context messages from
uridownloader's http source in order to get cookies/headers
from the pipeline.

Based on a patch from Philippe Normand

https://bugzilla.gnome.org/show_bug.cgi?id=726314
This commit is contained in:
Thiago Santos 2015-12-09 13:12:42 -03:00 committed by Sebastian Dröge
parent b8605b56af
commit 8cf858fb27
2 changed files with 52 additions and 0 deletions
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51
gst-libs/gst/uridownloader/gsturidownloader.c
View file

@ -42,6 +42,8 @@ struct _GstUriDownloaderPrivate
gboolean got_buffer;
GMutex download_lock; /* used to restrict to one download only */
GstElement *parent;
GError *err;
GCond cond;
@ -133,6 +135,11 @@ gst_uri_downloader_dispose (GObject * object)
downloader->priv->download = NULL;
}
if (downloader->priv->parent) {
gst_object_unref (downloader->priv->parent);
downloader->priv->parent = NULL;
}
G_OBJECT_CLASS (gst_uri_downloader_parent_class)->dispose (object);
}
@ -153,6 +160,23 @@ gst_uri_downloader_new (void)
return g_object_new (GST_TYPE_URI_DOWNLOADER, NULL);
}
/**
* 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)
{
gst_object_replace ((GstObject **) & downloader->priv->parent,
GST_OBJECT_CAST (parent));
}
static gboolean
gst_uri_downloader_sink_event (GstPad * pad, GstObject * parent,
GstEvent * event)
@ -255,6 +279,33 @@ gst_uri_downloader_bus_handler (GstBus * bus,
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) {
/* post the same need-context as if it was from the parent and then
* get it to our internal element that requested it */
if (downloader->priv->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 (downloader->priv->parent, context_type);
/* No context, request one */
if (!context) {
GstMessage *need_context_msg =
gst_message_new_need_context (GST_OBJECT_CAST (downloader->
priv->parent), context_type);
gst_element_post_message (downloader->priv->parent, need_context_msg);
context =
gst_element_get_context (downloader->priv->parent, context_type);
}
if (context) {
gst_element_set_context (msg_src, context);
gst_context_unref (context);
}
}
}
gst_message_unref (message);

1
gst-libs/gst/uridownloader/gsturidownloader.h
View file

@ -61,6 +61,7 @@ struct _GstUriDownloaderClass
GType gst_uri_downloader_get_type (void);
GstUriDownloader * gst_uri_downloader_new (void);
void gst_uri_downloader_set_parent (GstUriDownloader * downloader, GstElement * parent);
GstFragment * gst_uri_downloader_fetch_uri (GstUriDownloader * downloader, const gchar * uri, const gchar * referer, gboolean compress, gboolean refresh, gboolean allow_cache, GError ** err);
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);
void gst_uri_downloader_reset (GstUriDownloader *downloader);