+++ /dev/null
-/* 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 "gstfragmented.h"
-#include "gstfragment.h"
-#include "gsturidownloader.h"
-
-GST_DEBUG_CATEGORY_STATIC (uridownloader_debug);
-#define GST_CAT_DEFAULT (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;
- GMutex lock;
- GCond cond;
-};
-
-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 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->lock);
- g_cond_init (&downloader->priv->cond);
-}
-
-static void
-gst_uri_downloader_dispose (GObject * object)
-{
- GstUriDownloader *downloader = GST_URI_DOWNLOADER (object);
-
- if (downloader->priv->urisrc != NULL) {
- gst_object_unref (downloader->priv->urisrc);
- downloader->priv->urisrc = NULL;
- }
-
- 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_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->lock);
- g_cond_clear (&downloader->priv->cond);
-
- G_OBJECT_CLASS (gst_uri_downloader_parent_class)->finalize (object);
-}
-
-GstUriDownloader *
-gst_uri_downloader_new (void)
-{
- return g_object_new (GST_TYPE_URI_DOWNLOADER, NULL);
-}
-
-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_OBJECT_UNLOCK (downloader);
- GST_DEBUG_OBJECT (downloader, "Signaling chain funtion");
- g_mutex_lock (&downloader->priv->lock);
- g_cond_signal (&downloader->priv->cond);
- g_mutex_unlock (&downloader->priv->lock);
- } else {
- GST_OBJECT_UNLOCK (downloader);
- }
- gst_event_unref (event);
- break;
- }
- 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 ||
- GST_MESSAGE_TYPE (message) == GST_MESSAGE_WARNING) {
- GError *err = NULL;
- gchar *dbg_info = NULL;
-
- gst_message_parse_error (message, &err, &dbg_info);
- GST_WARNING_OBJECT (downloader,
- "Received error: %s from %s, the download will be cancelled",
- 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);
-
- /* remove the sync handler to avoid duplicated messages */
- gst_bus_set_sync_handler (downloader->priv->bus, NULL, NULL, NULL);
- gst_uri_downloader_cancel (downloader);
- }
-
- 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_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));
- if (!gst_fragment_add_buffer (downloader->priv->download, buf))
- GST_WARNING_OBJECT (downloader, "Could not add buffer to fragment");
- GST_OBJECT_UNLOCK (downloader);
-
-done:
- {
- return GST_FLOW_OK;
- }
-}
-
-static void
-gst_uri_downloader_stop (GstUriDownloader * downloader)
-{
- GstPad *pad;
-
- GST_DEBUG_OBJECT (downloader, "Stopping source element");
-
- /* remove the bus' sync handler */
- gst_bus_set_sync_handler (downloader->priv->bus, NULL, NULL, 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);
- }
- /* set the element state to NULL */
- gst_element_set_state (downloader->priv->urisrc, GST_STATE_NULL);
- gst_element_get_state (downloader->priv->urisrc, NULL, NULL,
- GST_CLOCK_TIME_NONE);
-}
-
-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;
- GST_OBJECT_UNLOCK (downloader);
- GST_DEBUG_OBJECT (downloader, "Signaling chain funtion");
- g_mutex_lock (&downloader->priv->lock);
- g_cond_signal (&downloader->priv->cond);
- g_mutex_unlock (&downloader->priv->lock);
- } else {
- GST_OBJECT_UNLOCK (downloader);
- GST_DEBUG_OBJECT (downloader,
- "Trying to cancell a download that was alredy cancelled");
- }
-}
-
-static gboolean
-gst_uri_downloader_set_uri (GstUriDownloader * downloader, const gchar * uri)
-{
- GstPad *pad;
-
- if (!gst_uri_is_valid (uri))
- return FALSE;
-
- 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)
- return FALSE;
-
- /* 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;
-}
-
-GstFragment *
-gst_uri_downloader_fetch_uri (GstUriDownloader * downloader, const gchar * uri)
-{
- GstStateChangeReturn ret;
- GstFragment *download = NULL;
-
- g_mutex_lock (&downloader->priv->lock);
-
- if (!gst_uri_downloader_set_uri (downloader, uri)) {
- goto quit;
- }
-
- downloader->priv->download = gst_fragment_new ();
-
- ret = gst_element_set_state (downloader->priv->urisrc, GST_STATE_PLAYING);
- if (ret == GST_STATE_CHANGE_FAILURE) {
- g_object_unref (downloader->priv->download);
- downloader->priv->download = NULL;
- 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");
- g_cond_wait (&downloader->priv->cond, &downloader->priv->lock);
-
- GST_OBJECT_LOCK (downloader);
- download = downloader->priv->download;
- downloader->priv->download = NULL;
- GST_OBJECT_UNLOCK (downloader);
-
- if (download != NULL)
- GST_INFO_OBJECT (downloader, "URI fetched successfully");
- else
- GST_INFO_OBJECT (downloader, "Error fetching URI");
-
-quit:
- {
- gst_uri_downloader_stop (downloader);
- g_mutex_unlock (&downloader->priv->lock);
- return download;
- }
-}
+++ /dev/null
-/* GStreamer
- * Copyright (C) 2011 Andoni Morales Alastruey <ylatuya@gmail.com>
- *
- * gsturidownloader.h:
- *
- * 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.
- *
- * Youshould 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.
- */
-
-#ifndef __GSTURI_DOWNLOADER_H__
-#define __GSTURI_DOWNLOADER_H__
-
-#include <glib-object.h>
-#include <gst/gst.h>
-#include "gstfragment.h"
-
-G_BEGIN_DECLS
-
-#define GST_TYPE_URI_DOWNLOADER (gst_uri_downloader_get_type())
-#define GST_URI_DOWNLOADER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_URI_DOWNLOADER,GstUriDownloader))
-#define GST_URI_DOWNLOADER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_URI_DOWNLOADER,GstUriDownloaderClass))
-#define GST_IS_URI_DOWNLOADER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_URI_DOWNLOADER))
-#define GST_IS_URI_DOWNLOADER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_URI_DOWNLOADER))
-
-typedef struct _GstUriDownloader GstUriDownloader;
-typedef struct _GstUriDownloaderPrivate GstUriDownloaderPrivate;
-typedef struct _GstUriDownloaderClass GstUriDownloaderClass;
-
-struct _GstUriDownloader
-{
- GstObject parent;
-
- GstUriDownloaderPrivate *priv;
-};
-
-struct _GstUriDownloaderClass
-{
- GstObjectClass parent_class;
-
- /*< private >*/
- gpointer _gst_reserved[GST_PADDING];
-};
-
-GType gst_uri_downloader_get_type (void);
-
-GstUriDownloader * gst_uri_downloader_new (void);
-GstFragment * gst_uri_downloader_fetch_uri (GstUriDownloader * downloader, const gchar * uri);
-void gst_uri_downloader_cancel (GstUriDownloader *downloader);
-void gst_uri_downloader_free (GstUriDownloader *downloader);
-
-G_END_DECLS
-#endif /* __GSTURIDOWNLOADER_H__ */
projects / platform / upstream / gstreamer.git / commitdiff