mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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a2bb04c899
With the previous accumualator loading stopped after the first handler, even if it return NULL which is unexpected, instead we want to use the first non-value returned by handlers. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5665>
2775 lines
80 KiB
C
2775 lines
80 KiB
C
/* GStreamer
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* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
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* 2009 Nokia Corporation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:gstdiscoverer
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* @title: GstDiscoverer
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* @short_description: Utility for discovering information on URIs.
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*
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* The #GstDiscoverer is a utility object which allows to get as much
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* information as possible from one or many URIs.
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*
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* It provides two APIs, allowing usage in blocking or non-blocking mode.
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*
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* The blocking mode just requires calling gst_discoverer_discover_uri()
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* with the URI one wishes to discover.
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*
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* The non-blocking mode requires a running #GMainLoop iterating a
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* #GMainContext, where one connects to the various signals, appends the
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* URIs to be processed (through gst_discoverer_discover_uri_async()) and then
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* asks for the discovery to begin (through gst_discoverer_start()).
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* By default this will use the GLib default main context unless you have
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* set a custom context using g_main_context_push_thread_default().
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*
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* All the information is returned in a #GstDiscovererInfo structure.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/video/video.h>
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#include <gst/audio/audio.h>
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#include <string.h>
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#include "pbutils.h"
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#include "pbutils-private.h"
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/* For g_stat () */
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#include <glib/gstdio.h>
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GST_DEBUG_CATEGORY_STATIC (discoverer_debug);
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#define GST_CAT_DEFAULT discoverer_debug
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#define CACHE_DIRNAME "discoverer"
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static GQuark _CAPS_QUARK;
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static GQuark _TAGS_QUARK;
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static GQuark _ELEMENT_SRCPAD_QUARK;
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static GQuark _TOC_QUARK;
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static GQuark _STREAM_ID_QUARK;
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static GQuark _MISSING_PLUGIN_QUARK;
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static GQuark _STREAM_TOPOLOGY_QUARK;
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static GQuark _TOPOLOGY_PAD_QUARK;
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typedef struct
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{
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GstDiscoverer *dc;
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GstPad *pad;
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GstElement *queue;
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GstElement *sink;
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GstTagList *tags;
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GstToc *toc;
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gchar *stream_id;
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gulong probe_id;
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} PrivateStream;
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struct _GstDiscovererPrivate
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{
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gboolean async;
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/* allowed time to discover each uri in nanoseconds */
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GstClockTime timeout;
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/* list of pending URI to process (current excluded) */
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GList *pending_uris;
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GMutex lock;
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/* TRUE if cleaning up discoverer */
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gboolean cleanup;
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/* TRUE if processing a URI */
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gboolean processing;
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/* TRUE if discoverer has been started */
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gboolean running;
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/* current items */
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GstDiscovererInfo *current_info;
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GError *current_error;
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GstStructure *current_topology;
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GstTagList *all_tags;
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GstTagList *global_tags;
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/* List of private streams */
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GList *streams;
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/* List of these sinks and their handler IDs (to remove the probe) */
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guint pending_subtitle_pads;
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/* Whether we received no_more_pads */
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gboolean no_more_pads;
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GstState target_state;
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GstState current_state;
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/* Global elements */
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GstBin *pipeline;
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GstElement *uridecodebin;
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GstBus *bus;
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/* Custom main context variables */
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GMainContext *ctx;
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GSource *bus_source;
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GSource *timeout_source;
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/* reusable queries */
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GstQuery *seeking_query;
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/* Handler ids for various callbacks */
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gulong pad_added_id;
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gulong pad_remove_id;
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gulong no_more_pads_id;
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gulong source_chg_id;
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gulong bus_cb_id;
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gboolean use_cache;
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};
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#define DISCO_LOCK(dc) g_mutex_lock (&dc->priv->lock);
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#define DISCO_UNLOCK(dc) g_mutex_unlock (&dc->priv->lock);
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static void
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_do_init (void)
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{
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GST_DEBUG_CATEGORY_INIT (discoverer_debug, "discoverer", 0, "Discoverer");
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_CAPS_QUARK = g_quark_from_static_string ("caps");
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_ELEMENT_SRCPAD_QUARK = g_quark_from_static_string ("element-srcpad");
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_TAGS_QUARK = g_quark_from_static_string ("tags");
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_TOC_QUARK = g_quark_from_static_string ("toc");
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_STREAM_ID_QUARK = g_quark_from_static_string ("stream-id");
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_MISSING_PLUGIN_QUARK = g_quark_from_static_string ("missing-plugin");
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_STREAM_TOPOLOGY_QUARK = g_quark_from_static_string ("stream-topology");
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_TOPOLOGY_PAD_QUARK = g_quark_from_static_string ("pad");
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};
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G_DEFINE_TYPE_EXTENDED (GstDiscoverer, gst_discoverer, G_TYPE_OBJECT, 0,
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G_ADD_PRIVATE (GstDiscoverer) _do_init ());
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enum
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{
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SIGNAL_FINISHED,
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SIGNAL_STARTING,
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SIGNAL_DISCOVERED,
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SIGNAL_SOURCE_SETUP,
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SIGNAL_LOAD_SERIALIZED_INFO,
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LAST_SIGNAL
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};
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#define DEFAULT_PROP_TIMEOUT 15 * GST_SECOND
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#define DEFAULT_PROP_USE_CACHE FALSE
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enum
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{
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PROP_0,
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PROP_TIMEOUT,
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PROP_USE_CACHE
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};
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static guint gst_discoverer_signals[LAST_SIGNAL] = { 0 };
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static void gst_discoverer_set_timeout (GstDiscoverer * dc,
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GstClockTime timeout);
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static gboolean async_timeout_cb (GstDiscoverer * dc);
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static void discoverer_bus_cb (GstBus * bus, GstMessage * msg,
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GstDiscoverer * dc);
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static void uridecodebin_pad_added_cb (GstElement * uridecodebin, GstPad * pad,
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GstDiscoverer * dc);
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static void uridecodebin_pad_removed_cb (GstElement * uridecodebin,
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GstPad * pad, GstDiscoverer * dc);
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static void uridecodebin_no_more_pads_cb (GstElement * uridecodebin,
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GstDiscoverer * dc);
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static void uridecodebin_source_changed_cb (GstElement * uridecodebin,
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GParamSpec * pspec, GstDiscoverer * dc);
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static void gst_discoverer_dispose (GObject * dc);
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static void gst_discoverer_finalize (GObject * dc);
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static void gst_discoverer_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_discoverer_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static gboolean _setup_locked (GstDiscoverer * dc);
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static void handle_current_async (GstDiscoverer * dc);
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static gboolean emit_discovererd_and_next (GstDiscoverer * dc);
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static GVariant *gst_discoverer_info_to_variant_recurse (GstDiscovererStreamInfo
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* sinfo, GstDiscovererSerializeFlags flags);
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static GstDiscovererStreamInfo *_parse_discovery (GVariant * variant,
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GstDiscovererInfo * info);
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static GstDiscovererInfo *load_serialized_info (GstDiscoverer * dc,
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gchar * uri);
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static gboolean
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_gst_discoverer_info_accumulator (GSignalInvocationHint * ihint,
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GValue * return_accu, const GValue * handler_return, gpointer dummy)
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{
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GstDiscovererInfo *info;
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info = g_value_get_object (handler_return);
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GST_DEBUG ("got discoverer info %" GST_PTR_FORMAT, info);
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g_value_set_object (return_accu, info);
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/* stop emission if we have a discoverer info */
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return (info == NULL);
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}
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static void
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gst_discoverer_class_init (GstDiscovererClass * klass)
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{
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GObjectClass *gobject_class = (GObjectClass *) klass;
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gobject_class->dispose = gst_discoverer_dispose;
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gobject_class->finalize = gst_discoverer_finalize;
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gobject_class->set_property = gst_discoverer_set_property;
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gobject_class->get_property = gst_discoverer_get_property;
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klass->load_serialize_info = load_serialized_info;
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/* properties */
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/**
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* GstDiscoverer:timeout:
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*
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* The duration (in nanoseconds) after which the discovery of an individual
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* URI will timeout.
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*
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* If the discovery of a URI times out, the %GST_DISCOVERER_TIMEOUT will be
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* set on the result flags.
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*/
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g_object_class_install_property (gobject_class, PROP_TIMEOUT,
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g_param_spec_uint64 ("timeout", "timeout", "Timeout",
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GST_SECOND, 3600 * GST_SECOND, DEFAULT_PROP_TIMEOUT,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
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/**
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* GstDiscoverer::use-cache:
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*
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* Whether to use a serialized version of the discoverer info from our
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* own cache if accessible. This allows the discovery to be much faster
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* as when using this option, we do not need to create a #GstPipeline
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* and run it, but instead, just reload the #GstDiscovererInfo in its
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* serialized form.
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*
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* The cache files are saved in `$XDG_CACHE_DIR/gstreamer-1.0/discoverer/`.
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*
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* Since: 1.16
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*/
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g_object_class_install_property (gobject_class, PROP_USE_CACHE,
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g_param_spec_boolean ("use-cache", "use cache", "Use cache",
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DEFAULT_PROP_USE_CACHE,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
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/* signals */
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/**
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* GstDiscoverer::finished:
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* @discoverer: the #GstDiscoverer
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*
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* Will be emitted in async mode when all pending URIs have been processed.
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*/
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gst_discoverer_signals[SIGNAL_FINISHED] =
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g_signal_new ("finished", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GstDiscovererClass, finished), NULL, NULL, NULL,
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G_TYPE_NONE, 0, G_TYPE_NONE);
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/**
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* GstDiscoverer::starting:
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* @discoverer: the #GstDiscoverer
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*
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* Will be emitted when the discover starts analyzing the pending URIs
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*/
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gst_discoverer_signals[SIGNAL_STARTING] =
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g_signal_new ("starting", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GstDiscovererClass, starting), NULL, NULL, NULL,
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G_TYPE_NONE, 0, G_TYPE_NONE);
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/**
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* GstDiscoverer::discovered:
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* @discoverer: the #GstDiscoverer
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* @info: the results #GstDiscovererInfo
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* @error: (allow-none) (type GLib.Error): #GError, which will be non-NULL
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* if an error occurred during
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* discovery. You must not free
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* this #GError, it will be freed by
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* the discoverer.
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*
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* Will be emitted in async mode when all information on a URI could be
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* discovered, or an error occurred.
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*
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* When an error occurs, @info might still contain some partial information,
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* depending on the circumstances of the error.
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*/
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gst_discoverer_signals[SIGNAL_DISCOVERED] =
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g_signal_new ("discovered", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GstDiscovererClass, discovered), NULL, NULL, NULL,
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G_TYPE_NONE, 2, GST_TYPE_DISCOVERER_INFO,
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G_TYPE_ERROR | G_SIGNAL_TYPE_STATIC_SCOPE);
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/**
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* GstDiscoverer::source-setup:
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* @discoverer: the #GstDiscoverer
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* @source: source element
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*
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* This signal is emitted after the source element has been created for, so
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* the URI being discovered, so it can be configured by setting additional
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* properties (e.g. set a proxy server for an http source, or set the device
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* and read speed for an audio cd source).
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*
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* This signal is usually emitted from the context of a GStreamer streaming
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* thread.
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*/
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gst_discoverer_signals[SIGNAL_SOURCE_SETUP] =
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g_signal_new ("source-setup", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstDiscovererClass, source_setup),
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NULL, NULL, NULL, G_TYPE_NONE, 1, GST_TYPE_ELEMENT);
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/**
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* GstDiscoverer::load-serialized-info:
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* @discoverer: the #GstDiscoverer
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* @uri: THe URI to load the serialized info for
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*
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* Retrieves information about a URI from and external source of information,
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* like a cache file. This is used by the discoverer to speed up the
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* discovery.
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*
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* Returns: (nullable) (transfer full): The #GstDiscovererInfo representing
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* @uri, or %NULL if no information
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*
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* Since: 1.24
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*/
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gst_discoverer_signals[SIGNAL_LOAD_SERIALIZED_INFO] =
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g_signal_new ("load-serialized-info", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstDiscovererClass,
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load_serialize_info), _gst_discoverer_info_accumulator, NULL, NULL,
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GST_TYPE_DISCOVERER_INFO, 1, G_TYPE_STRING);
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}
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static void
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gst_discoverer_init (GstDiscoverer * dc)
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{
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GstFormat format = GST_FORMAT_TIME;
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dc->priv = gst_discoverer_get_instance_private (dc);
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dc->priv->timeout = DEFAULT_PROP_TIMEOUT;
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dc->priv->use_cache = DEFAULT_PROP_USE_CACHE;
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dc->priv->async = FALSE;
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g_mutex_init (&dc->priv->lock);
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dc->priv->pending_subtitle_pads = 0;
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dc->priv->current_state = GST_STATE_NULL;
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dc->priv->target_state = GST_STATE_NULL;
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dc->priv->no_more_pads = FALSE;
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dc->priv->all_tags = NULL;
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dc->priv->global_tags = NULL;
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GST_LOG ("Creating pipeline");
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dc->priv->pipeline = (GstBin *) gst_pipeline_new ("Discoverer");
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GST_LOG_OBJECT (dc, "Creating uridecodebin");
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dc->priv->uridecodebin =
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gst_element_factory_make ("uridecodebin", "discoverer-uri");
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if (G_UNLIKELY (dc->priv->uridecodebin == NULL)) {
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GST_ERROR ("Can't create uridecodebin");
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return;
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}
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g_object_set (dc->priv->uridecodebin, "post-stream-topology", TRUE, NULL);
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GST_LOG_OBJECT (dc, "Adding uridecodebin to pipeline");
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gst_bin_add (dc->priv->pipeline, dc->priv->uridecodebin);
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dc->priv->pad_added_id =
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g_signal_connect_object (dc->priv->uridecodebin, "pad-added",
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G_CALLBACK (uridecodebin_pad_added_cb), dc, 0);
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dc->priv->pad_remove_id =
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g_signal_connect_object (dc->priv->uridecodebin, "pad-removed",
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G_CALLBACK (uridecodebin_pad_removed_cb), dc, 0);
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dc->priv->no_more_pads_id =
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g_signal_connect_object (dc->priv->uridecodebin, "no-more-pads",
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G_CALLBACK (uridecodebin_no_more_pads_cb), dc, 0);
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dc->priv->source_chg_id =
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g_signal_connect_object (dc->priv->uridecodebin, "notify::source",
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G_CALLBACK (uridecodebin_source_changed_cb), dc, 0);
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GST_LOG_OBJECT (dc, "Getting pipeline bus");
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dc->priv->bus = gst_pipeline_get_bus ((GstPipeline *) dc->priv->pipeline);
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dc->priv->bus_cb_id =
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g_signal_connect_object (dc->priv->bus, "message",
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G_CALLBACK (discoverer_bus_cb), dc, 0);
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GST_DEBUG_OBJECT (dc, "Done initializing Discoverer");
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/* create queries */
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dc->priv->seeking_query = gst_query_new_seeking (format);
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}
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static void
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discoverer_reset (GstDiscoverer * dc)
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{
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GST_DEBUG_OBJECT (dc, "Resetting");
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if (dc->priv->pending_uris) {
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g_list_foreach (dc->priv->pending_uris, (GFunc) g_free, NULL);
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g_list_free (dc->priv->pending_uris);
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dc->priv->pending_uris = NULL;
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}
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if (dc->priv->pipeline)
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gst_element_set_state ((GstElement *) dc->priv->pipeline, GST_STATE_NULL);
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}
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#define DISCONNECT_SIGNAL(o,i) G_STMT_START{ \
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if ((i) && g_signal_handler_is_connected ((o), (i))) \
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g_signal_handler_disconnect ((o), (i)); \
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(i) = 0; \
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}G_STMT_END
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static void
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gst_discoverer_dispose (GObject * obj)
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{
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GstDiscoverer *dc = (GstDiscoverer *) obj;
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GST_DEBUG_OBJECT (dc, "Disposing");
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discoverer_reset (dc);
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if (G_LIKELY (dc->priv->pipeline)) {
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/* Workaround for bug #118536 */
|
|
DISCONNECT_SIGNAL (dc->priv->uridecodebin, dc->priv->pad_added_id);
|
|
DISCONNECT_SIGNAL (dc->priv->uridecodebin, dc->priv->pad_remove_id);
|
|
DISCONNECT_SIGNAL (dc->priv->uridecodebin, dc->priv->no_more_pads_id);
|
|
DISCONNECT_SIGNAL (dc->priv->uridecodebin, dc->priv->source_chg_id);
|
|
DISCONNECT_SIGNAL (dc->priv->bus, dc->priv->bus_cb_id);
|
|
|
|
/* pipeline was set to NULL in _reset */
|
|
gst_object_unref (dc->priv->pipeline);
|
|
if (dc->priv->bus)
|
|
gst_object_unref (dc->priv->bus);
|
|
|
|
dc->priv->pipeline = NULL;
|
|
dc->priv->uridecodebin = NULL;
|
|
dc->priv->bus = NULL;
|
|
}
|
|
|
|
gst_discoverer_stop (dc);
|
|
|
|
if (dc->priv->seeking_query) {
|
|
gst_query_unref (dc->priv->seeking_query);
|
|
dc->priv->seeking_query = NULL;
|
|
}
|
|
|
|
G_OBJECT_CLASS (gst_discoverer_parent_class)->dispose (obj);
|
|
}
|
|
|
|
static void
|
|
gst_discoverer_finalize (GObject * obj)
|
|
{
|
|
GstDiscoverer *dc = (GstDiscoverer *) obj;
|
|
|
|
g_mutex_clear (&dc->priv->lock);
|
|
|
|
G_OBJECT_CLASS (gst_discoverer_parent_class)->finalize (obj);
|
|
}
|
|
|
|
static void
|
|
gst_discoverer_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstDiscoverer *dc = (GstDiscoverer *) object;
|
|
|
|
switch (prop_id) {
|
|
case PROP_TIMEOUT:
|
|
gst_discoverer_set_timeout (dc, g_value_get_uint64 (value));
|
|
break;
|
|
case PROP_USE_CACHE:
|
|
DISCO_LOCK (dc);
|
|
dc->priv->use_cache = g_value_get_boolean (value);
|
|
DISCO_UNLOCK (dc);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_discoverer_get_property (GObject * object, guint prop_id,
|
|
GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstDiscoverer *dc = (GstDiscoverer *) object;
|
|
|
|
switch (prop_id) {
|
|
case PROP_TIMEOUT:
|
|
DISCO_LOCK (dc);
|
|
g_value_set_uint64 (value, dc->priv->timeout);
|
|
DISCO_UNLOCK (dc);
|
|
break;
|
|
case PROP_USE_CACHE:
|
|
DISCO_LOCK (dc);
|
|
g_value_set_boolean (value, dc->priv->use_cache);
|
|
DISCO_UNLOCK (dc);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_discoverer_set_timeout (GstDiscoverer * dc, GstClockTime timeout)
|
|
{
|
|
g_return_if_fail (GST_CLOCK_TIME_IS_VALID (timeout));
|
|
|
|
GST_DEBUG_OBJECT (dc, "timeout : %" GST_TIME_FORMAT, GST_TIME_ARGS (timeout));
|
|
|
|
/* FIXME : update current pending timeout if we're running */
|
|
DISCO_LOCK (dc);
|
|
dc->priv->timeout = timeout;
|
|
DISCO_UNLOCK (dc);
|
|
}
|
|
|
|
static GstPadProbeReturn
|
|
_event_probe (GstPad * pad, GstPadProbeInfo * info, PrivateStream * ps)
|
|
{
|
|
GstEvent *event = GST_PAD_PROBE_INFO_EVENT (info);
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_TOC:{
|
|
GstToc *tmp;
|
|
|
|
gst_event_parse_toc (event, &tmp, NULL);
|
|
GST_DEBUG_OBJECT (pad, "toc %" GST_PTR_FORMAT, tmp);
|
|
DISCO_LOCK (ps->dc);
|
|
ps->toc = tmp;
|
|
if (G_LIKELY (ps->dc->priv->processing)) {
|
|
GST_DEBUG_OBJECT (pad, "private stream %p toc %" GST_PTR_FORMAT, ps,
|
|
tmp);
|
|
} else
|
|
GST_DEBUG_OBJECT (pad, "Dropping toc since preroll is done");
|
|
DISCO_UNLOCK (ps->dc);
|
|
break;
|
|
}
|
|
case GST_EVENT_STREAM_START:{
|
|
const gchar *stream_id;
|
|
|
|
gst_event_parse_stream_start (event, &stream_id);
|
|
|
|
g_free (ps->stream_id);
|
|
ps->stream_id = stream_id ? g_strdup (stream_id) : NULL;
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return GST_PAD_PROBE_OK;
|
|
}
|
|
|
|
static GstStaticCaps subtitle_caps =
|
|
GST_STATIC_CAPS
|
|
("application/x-ssa; application/x-ass; application/x-kate");
|
|
|
|
static gboolean
|
|
is_subtitle_caps (const GstCaps * caps)
|
|
{
|
|
GstCaps *subs_caps;
|
|
GstStructure *s;
|
|
const gchar *name;
|
|
gboolean ret;
|
|
|
|
s = gst_caps_get_structure (caps, 0);
|
|
if (!s)
|
|
return FALSE;
|
|
|
|
name = gst_structure_get_name (s);
|
|
if (g_str_has_prefix (name, "text/") ||
|
|
g_str_has_prefix (name, "subpicture/") ||
|
|
g_str_has_prefix (name, "subtitle/") ||
|
|
g_str_has_prefix (name, "closedcaption/") ||
|
|
g_str_has_prefix (name, "application/x-subtitle"))
|
|
return TRUE;
|
|
|
|
subs_caps = gst_static_caps_get (&subtitle_caps);
|
|
ret = gst_caps_can_intersect (caps, subs_caps);
|
|
gst_caps_unref (subs_caps);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstPadProbeReturn
|
|
got_subtitle_data (GstPad * pad, GstPadProbeInfo * info, GstDiscoverer * dc)
|
|
{
|
|
GstMessage *msg;
|
|
|
|
if (!(GST_IS_BUFFER (info->data) || (GST_IS_EVENT (info->data)
|
|
&& (GST_EVENT_TYPE ((GstEvent *) info->data) == GST_EVENT_GAP
|
|
|| GST_EVENT_TYPE ((GstEvent *) info->data) ==
|
|
GST_EVENT_EOS))))
|
|
return GST_PAD_PROBE_OK;
|
|
|
|
|
|
DISCO_LOCK (dc);
|
|
|
|
dc->priv->pending_subtitle_pads--;
|
|
|
|
msg = gst_message_new_application (NULL,
|
|
gst_structure_new_empty ("DiscovererDone"));
|
|
gst_element_post_message ((GstElement *) dc->priv->pipeline, msg);
|
|
|
|
DISCO_UNLOCK (dc);
|
|
|
|
return GST_PAD_PROBE_REMOVE;
|
|
|
|
}
|
|
|
|
static void
|
|
uridecodebin_source_changed_cb (GstElement * uridecodebin,
|
|
GParamSpec * pspec, GstDiscoverer * dc)
|
|
{
|
|
GstElement *src;
|
|
/* get a handle to the source */
|
|
g_object_get (uridecodebin, pspec->name, &src, NULL);
|
|
|
|
GST_DEBUG_OBJECT (dc, "got a new source %p", src);
|
|
|
|
g_signal_emit (dc, gst_discoverer_signals[SIGNAL_SOURCE_SETUP], 0, src);
|
|
gst_object_unref (src);
|
|
}
|
|
|
|
static void
|
|
uridecodebin_pad_added_cb (GstElement * uridecodebin, GstPad * pad,
|
|
GstDiscoverer * dc)
|
|
{
|
|
PrivateStream *ps;
|
|
GstPad *sinkpad = NULL;
|
|
GstCaps *caps;
|
|
gchar *padname;
|
|
gchar *tmpname;
|
|
|
|
GST_DEBUG_OBJECT (dc, "pad %s:%s", GST_DEBUG_PAD_NAME (pad));
|
|
|
|
DISCO_LOCK (dc);
|
|
if (dc->priv->cleanup) {
|
|
GST_WARNING_OBJECT (dc, "Cleanup, not adding pad");
|
|
DISCO_UNLOCK (dc);
|
|
return;
|
|
}
|
|
if (dc->priv->current_error) {
|
|
GST_WARNING_OBJECT (dc, "Ongoing error, not adding more pads");
|
|
DISCO_UNLOCK (dc);
|
|
return;
|
|
}
|
|
ps = g_new0 (PrivateStream, 1);
|
|
|
|
ps->dc = dc;
|
|
ps->pad = pad;
|
|
padname = gst_pad_get_name (pad);
|
|
tmpname = g_strdup_printf ("discoverer-queue-%s", padname);
|
|
ps->queue = gst_element_factory_make ("queue", tmpname);
|
|
g_free (tmpname);
|
|
tmpname = g_strdup_printf ("discoverer-sink-%s", padname);
|
|
ps->sink = gst_element_factory_make ("fakesink", tmpname);
|
|
g_free (tmpname);
|
|
g_free (padname);
|
|
|
|
if (G_UNLIKELY (ps->queue == NULL || ps->sink == NULL))
|
|
goto error;
|
|
|
|
g_object_set (ps->sink, "silent", TRUE, NULL);
|
|
g_object_set (ps->queue, "max-size-buffers", 1, "silent", TRUE, NULL);
|
|
|
|
sinkpad = gst_element_get_static_pad (ps->queue, "sink");
|
|
if (sinkpad == NULL)
|
|
goto error;
|
|
|
|
caps = gst_pad_get_current_caps (pad);
|
|
if (!caps) {
|
|
GST_WARNING ("Couldn't get negotiated caps from %s:%s",
|
|
GST_DEBUG_PAD_NAME (pad));
|
|
caps = gst_pad_query_caps (pad, NULL);
|
|
}
|
|
|
|
if (caps && !gst_caps_is_empty (caps) && !gst_caps_is_any (caps)
|
|
&& is_subtitle_caps (caps)) {
|
|
/* Subtitle streams are sparse and may not provide any information - don't
|
|
* wait for data to preroll */
|
|
ps->probe_id =
|
|
gst_pad_add_probe (sinkpad, GST_PAD_PROBE_TYPE_DATA_DOWNSTREAM,
|
|
(GstPadProbeCallback) got_subtitle_data, dc, NULL);
|
|
g_object_set (ps->sink, "async", FALSE, NULL);
|
|
dc->priv->pending_subtitle_pads++;
|
|
}
|
|
|
|
if (caps)
|
|
gst_caps_unref (caps);
|
|
|
|
gst_bin_add_many (dc->priv->pipeline, ps->queue, ps->sink, NULL);
|
|
|
|
if (!gst_element_link_pads_full (ps->queue, "src", ps->sink, "sink",
|
|
GST_PAD_LINK_CHECK_NOTHING))
|
|
goto error;
|
|
if (!gst_element_sync_state_with_parent (ps->sink))
|
|
goto error;
|
|
if (!gst_element_sync_state_with_parent (ps->queue))
|
|
goto error;
|
|
|
|
if (gst_pad_link_full (pad, sinkpad,
|
|
GST_PAD_LINK_CHECK_NOTHING) != GST_PAD_LINK_OK)
|
|
goto error;
|
|
gst_object_unref (sinkpad);
|
|
|
|
/* Add an event probe */
|
|
gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM,
|
|
(GstPadProbeCallback) _event_probe, ps, NULL);
|
|
|
|
dc->priv->streams = g_list_append (dc->priv->streams, ps);
|
|
DISCO_UNLOCK (dc);
|
|
|
|
GST_DEBUG_OBJECT (dc, "Done handling pad");
|
|
|
|
return;
|
|
|
|
error:
|
|
GST_ERROR_OBJECT (dc, "Error while handling pad");
|
|
if (sinkpad)
|
|
gst_object_unref (sinkpad);
|
|
if (ps->queue)
|
|
gst_object_unref (ps->queue);
|
|
if (ps->sink)
|
|
gst_object_unref (ps->sink);
|
|
g_free (ps);
|
|
DISCO_UNLOCK (dc);
|
|
return;
|
|
}
|
|
|
|
static void
|
|
uridecodebin_no_more_pads_cb (GstElement * uridecodebin, GstDiscoverer * dc)
|
|
{
|
|
GstMessage *msg = gst_message_new_application (NULL,
|
|
gst_structure_new_empty ("DiscovererDone"));
|
|
|
|
DISCO_LOCK (dc);
|
|
dc->priv->no_more_pads = TRUE;
|
|
gst_element_post_message ((GstElement *) dc->priv->pipeline, msg);
|
|
DISCO_UNLOCK (dc);
|
|
}
|
|
|
|
static void
|
|
uridecodebin_pad_removed_cb (GstElement * uridecodebin, GstPad * pad,
|
|
GstDiscoverer * dc)
|
|
{
|
|
GList *tmp;
|
|
PrivateStream *ps;
|
|
GstPad *sinkpad;
|
|
|
|
GST_DEBUG_OBJECT (dc, "pad %s:%s", GST_DEBUG_PAD_NAME (pad));
|
|
|
|
/* Find the PrivateStream */
|
|
DISCO_LOCK (dc);
|
|
for (tmp = dc->priv->streams; tmp; tmp = tmp->next) {
|
|
ps = (PrivateStream *) tmp->data;
|
|
if (ps->pad == pad)
|
|
break;
|
|
}
|
|
|
|
if (tmp == NULL) {
|
|
DISCO_UNLOCK (dc);
|
|
GST_DEBUG ("The removed pad wasn't controlled by us !");
|
|
return;
|
|
}
|
|
|
|
if (ps->probe_id)
|
|
gst_pad_remove_probe (pad, ps->probe_id);
|
|
|
|
dc->priv->streams = g_list_delete_link (dc->priv->streams, tmp);
|
|
|
|
gst_element_set_state (ps->sink, GST_STATE_NULL);
|
|
gst_element_set_state (ps->queue, GST_STATE_NULL);
|
|
gst_element_unlink (ps->queue, ps->sink);
|
|
|
|
sinkpad = gst_element_get_static_pad (ps->queue, "sink");
|
|
gst_pad_unlink (pad, sinkpad);
|
|
gst_object_unref (sinkpad);
|
|
|
|
/* references removed here */
|
|
gst_bin_remove_many (dc->priv->pipeline, ps->sink, ps->queue, NULL);
|
|
|
|
DISCO_UNLOCK (dc);
|
|
if (ps->tags) {
|
|
gst_tag_list_unref (ps->tags);
|
|
}
|
|
if (ps->toc) {
|
|
gst_toc_unref (ps->toc);
|
|
}
|
|
g_free (ps->stream_id);
|
|
|
|
g_free (ps);
|
|
|
|
GST_DEBUG ("Done handling pad");
|
|
}
|
|
|
|
static GstStructure *
|
|
collect_stream_information (GstDiscoverer * dc, PrivateStream * ps, guint idx)
|
|
{
|
|
GstCaps *caps;
|
|
GstStructure *st;
|
|
gchar *stname;
|
|
|
|
stname = g_strdup_printf ("stream-%02d", idx);
|
|
st = gst_structure_new_empty (stname);
|
|
g_free (stname);
|
|
|
|
/* Get caps */
|
|
caps = gst_pad_get_current_caps (ps->pad);
|
|
if (!caps) {
|
|
GST_WARNING ("Couldn't get negotiated caps from %s:%s",
|
|
GST_DEBUG_PAD_NAME (ps->pad));
|
|
caps = gst_pad_query_caps (ps->pad, NULL);
|
|
}
|
|
if (caps) {
|
|
GST_DEBUG ("stream-%02d, got caps %" GST_PTR_FORMAT, idx, caps);
|
|
gst_structure_id_set (st, _CAPS_QUARK, GST_TYPE_CAPS, caps, NULL);
|
|
gst_caps_unref (caps);
|
|
}
|
|
if (ps->tags)
|
|
gst_structure_id_set (st, _TAGS_QUARK, GST_TYPE_TAG_LIST, ps->tags, NULL);
|
|
if (ps->toc)
|
|
gst_structure_id_set (st, _TOC_QUARK, GST_TYPE_TOC, ps->toc, NULL);
|
|
if (ps->stream_id)
|
|
gst_structure_id_set (st, _STREAM_ID_QUARK, G_TYPE_STRING, ps->stream_id,
|
|
NULL);
|
|
|
|
return st;
|
|
}
|
|
|
|
/* takes ownership of new_tags, may replace *taglist with a new one */
|
|
static void
|
|
gst_discoverer_merge_and_replace_tags (GstTagList ** taglist,
|
|
GstTagList * new_tags)
|
|
{
|
|
if (new_tags == NULL)
|
|
return;
|
|
|
|
if (*taglist == NULL) {
|
|
*taglist = new_tags;
|
|
return;
|
|
}
|
|
|
|
gst_tag_list_insert (*taglist, new_tags, GST_TAG_MERGE_REPLACE);
|
|
gst_tag_list_unref (new_tags);
|
|
}
|
|
|
|
static void
|
|
collect_common_information (GstDiscovererStreamInfo * info,
|
|
const GstStructure * st)
|
|
{
|
|
if (gst_structure_id_has_field (st, _TOC_QUARK)) {
|
|
gst_structure_id_get (st, _TOC_QUARK, GST_TYPE_TOC, &info->toc, NULL);
|
|
}
|
|
|
|
if (gst_structure_id_has_field (st, _STREAM_ID_QUARK)) {
|
|
gst_structure_id_get (st, _STREAM_ID_QUARK, G_TYPE_STRING, &info->stream_id,
|
|
NULL);
|
|
}
|
|
}
|
|
|
|
static GstDiscovererStreamInfo *
|
|
make_info (GstDiscovererStreamInfo * parent, GType type, GstCaps * caps)
|
|
{
|
|
GstDiscovererStreamInfo *info;
|
|
|
|
if (parent)
|
|
info = gst_discoverer_stream_info_ref (parent);
|
|
else {
|
|
info = g_object_new (type, NULL);
|
|
if (caps)
|
|
info->caps = gst_caps_ref (caps);
|
|
}
|
|
return info;
|
|
}
|
|
|
|
/* Parses a set of caps and tags in st and populates a GstDiscovererStreamInfo
|
|
* structure (parent, if !NULL, otherwise it allocates one)
|
|
*/
|
|
static GstDiscovererStreamInfo *
|
|
collect_information (GstDiscoverer * dc, const GstStructure * st,
|
|
GstDiscovererStreamInfo * parent)
|
|
{
|
|
GstPad *srcpad;
|
|
GstCaps *caps = NULL;
|
|
GstStructure *caps_st;
|
|
GstTagList *tags_st;
|
|
const gchar *name;
|
|
gint tmp, tmp2;
|
|
guint utmp;
|
|
|
|
if (!st || (!gst_structure_id_has_field (st, _CAPS_QUARK)
|
|
&& !gst_structure_id_has_field (st, _ELEMENT_SRCPAD_QUARK))) {
|
|
GST_WARNING ("Couldn't find caps !");
|
|
return make_info (parent, GST_TYPE_DISCOVERER_STREAM_INFO, NULL);
|
|
}
|
|
|
|
if (gst_structure_id_get (st, _ELEMENT_SRCPAD_QUARK, GST_TYPE_PAD, &srcpad,
|
|
NULL)) {
|
|
caps = gst_pad_get_current_caps (srcpad);
|
|
gst_object_unref (srcpad);
|
|
}
|
|
if (!caps) {
|
|
gst_structure_id_get (st, _CAPS_QUARK, GST_TYPE_CAPS, &caps, NULL);
|
|
}
|
|
|
|
if (!caps || gst_caps_is_empty (caps) || gst_caps_is_any (caps)) {
|
|
GST_WARNING ("Couldn't find caps !");
|
|
if (caps)
|
|
gst_caps_unref (caps);
|
|
return make_info (parent, GST_TYPE_DISCOVERER_STREAM_INFO, NULL);
|
|
}
|
|
|
|
caps_st = gst_caps_get_structure (caps, 0);
|
|
name = gst_structure_get_name (caps_st);
|
|
|
|
if (g_str_has_prefix (name, "audio/")) {
|
|
GstDiscovererAudioInfo *info;
|
|
const gchar *format_str;
|
|
guint64 channel_mask;
|
|
|
|
info = (GstDiscovererAudioInfo *) make_info (parent,
|
|
GST_TYPE_DISCOVERER_AUDIO_INFO, caps);
|
|
|
|
if (gst_structure_get_int (caps_st, "rate", &tmp))
|
|
info->sample_rate = (guint) tmp;
|
|
|
|
if (gst_structure_get_int (caps_st, "channels", &tmp))
|
|
info->channels = (guint) tmp;
|
|
|
|
if (gst_structure_get (caps_st, "channel-mask", GST_TYPE_BITMASK,
|
|
&channel_mask, NULL)) {
|
|
info->channel_mask = channel_mask;
|
|
} else if (info->channels) {
|
|
info->channel_mask = gst_audio_channel_get_fallback_mask (info->channels);
|
|
}
|
|
|
|
/* FIXME: we only want to extract depth if raw audio is what's in the
|
|
* container (i.e. not if there is a decoder involved) */
|
|
format_str = gst_structure_get_string (caps_st, "format");
|
|
if (format_str != NULL) {
|
|
const GstAudioFormatInfo *finfo;
|
|
GstAudioFormat format;
|
|
|
|
format = gst_audio_format_from_string (format_str);
|
|
finfo = gst_audio_format_get_info (format);
|
|
if (finfo)
|
|
info->depth = GST_AUDIO_FORMAT_INFO_DEPTH (finfo);
|
|
}
|
|
|
|
if (gst_structure_id_has_field (st, _TAGS_QUARK)) {
|
|
gst_structure_id_get (st, _TAGS_QUARK, GST_TYPE_TAG_LIST, &tags_st, NULL);
|
|
if (gst_tag_list_get_uint (tags_st, GST_TAG_BITRATE, &utmp) ||
|
|
gst_tag_list_get_uint (tags_st, GST_TAG_NOMINAL_BITRATE, &utmp))
|
|
info->bitrate = utmp;
|
|
|
|
if (gst_tag_list_get_uint (tags_st, GST_TAG_MAXIMUM_BITRATE, &utmp))
|
|
info->max_bitrate = utmp;
|
|
|
|
/* FIXME: Is it worth it to remove the tags we've parsed? */
|
|
gst_discoverer_merge_and_replace_tags (&info->parent.tags, tags_st);
|
|
}
|
|
|
|
collect_common_information (&info->parent, st);
|
|
|
|
if (!info->language && ((GstDiscovererStreamInfo *) info)->tags) {
|
|
gchar *language;
|
|
if (gst_tag_list_get_string (((GstDiscovererStreamInfo *) info)->tags,
|
|
GST_TAG_LANGUAGE_CODE, &language)) {
|
|
info->language = language;
|
|
}
|
|
}
|
|
|
|
gst_caps_unref (caps);
|
|
return (GstDiscovererStreamInfo *) info;
|
|
|
|
} else if (g_str_has_prefix (name, "video/") ||
|
|
g_str_has_prefix (name, "image/")) {
|
|
GstDiscovererVideoInfo *info;
|
|
const gchar *caps_str;
|
|
|
|
info = (GstDiscovererVideoInfo *) make_info (parent,
|
|
GST_TYPE_DISCOVERER_VIDEO_INFO, caps);
|
|
|
|
if (gst_structure_get_int (caps_st, "width", &tmp))
|
|
info->width = (guint) tmp;
|
|
if (gst_structure_get_int (caps_st, "height", &tmp))
|
|
info->height = (guint) tmp;
|
|
|
|
if (gst_structure_get_fraction (caps_st, "framerate", &tmp, &tmp2)) {
|
|
info->framerate_num = (guint) tmp;
|
|
info->framerate_denom = (guint) tmp2;
|
|
} else {
|
|
info->framerate_num = 0;
|
|
info->framerate_denom = 1;
|
|
}
|
|
|
|
if (gst_structure_get_fraction (caps_st, "pixel-aspect-ratio", &tmp, &tmp2)) {
|
|
info->par_num = (guint) tmp;
|
|
info->par_denom = (guint) tmp2;
|
|
} else {
|
|
info->par_num = 1;
|
|
info->par_denom = 1;
|
|
}
|
|
|
|
/* FIXME: we only want to extract depth if raw video is what's in the
|
|
* container (i.e. not if there is a decoder involved) */
|
|
caps_str = gst_structure_get_string (caps_st, "format");
|
|
if (caps_str != NULL) {
|
|
const GstVideoFormatInfo *finfo;
|
|
GstVideoFormat format;
|
|
|
|
format = gst_video_format_from_string (caps_str);
|
|
finfo = gst_video_format_get_info (format);
|
|
if (finfo)
|
|
info->depth = finfo->bits * finfo->n_components;
|
|
}
|
|
|
|
caps_str = gst_structure_get_string (caps_st, "interlace-mode");
|
|
if (!caps_str || strcmp (caps_str, "progressive") == 0)
|
|
info->interlaced = FALSE;
|
|
else
|
|
info->interlaced = TRUE;
|
|
|
|
if (gst_structure_id_has_field (st, _TAGS_QUARK)) {
|
|
gst_structure_id_get (st, _TAGS_QUARK, GST_TYPE_TAG_LIST, &tags_st, NULL);
|
|
if (gst_tag_list_get_uint (tags_st, GST_TAG_BITRATE, &utmp) ||
|
|
gst_tag_list_get_uint (tags_st, GST_TAG_NOMINAL_BITRATE, &utmp))
|
|
info->bitrate = utmp;
|
|
|
|
if (gst_tag_list_get_uint (tags_st, GST_TAG_MAXIMUM_BITRATE, &utmp))
|
|
info->max_bitrate = utmp;
|
|
|
|
/* FIXME: Is it worth it to remove the tags we've parsed? */
|
|
gst_discoverer_merge_and_replace_tags (&info->parent.tags, tags_st);
|
|
}
|
|
|
|
collect_common_information (&info->parent, st);
|
|
|
|
gst_caps_unref (caps);
|
|
return (GstDiscovererStreamInfo *) info;
|
|
|
|
} else if (is_subtitle_caps (caps)) {
|
|
GstDiscovererSubtitleInfo *info;
|
|
|
|
info = (GstDiscovererSubtitleInfo *) make_info (parent,
|
|
GST_TYPE_DISCOVERER_SUBTITLE_INFO, caps);
|
|
|
|
if (gst_structure_id_has_field (st, _TAGS_QUARK)) {
|
|
const gchar *language;
|
|
|
|
gst_structure_id_get (st, _TAGS_QUARK, GST_TYPE_TAG_LIST, &tags_st, NULL);
|
|
|
|
language = gst_structure_get_string (caps_st, GST_TAG_LANGUAGE_CODE);
|
|
if (language)
|
|
info->language = g_strdup (language);
|
|
|
|
/* FIXME: Is it worth it to remove the tags we've parsed? */
|
|
gst_discoverer_merge_and_replace_tags (&info->parent.tags, tags_st);
|
|
}
|
|
|
|
collect_common_information (&info->parent, st);
|
|
|
|
if (!info->language && ((GstDiscovererStreamInfo *) info)->tags) {
|
|
gchar *language;
|
|
if (gst_tag_list_get_string (((GstDiscovererStreamInfo *) info)->tags,
|
|
GST_TAG_LANGUAGE_CODE, &language)) {
|
|
info->language = language;
|
|
}
|
|
}
|
|
|
|
gst_caps_unref (caps);
|
|
return (GstDiscovererStreamInfo *) info;
|
|
|
|
} else {
|
|
/* None of the above - populate what information we can */
|
|
GstDiscovererStreamInfo *info;
|
|
|
|
info = make_info (parent, GST_TYPE_DISCOVERER_STREAM_INFO, caps);
|
|
|
|
if (gst_structure_id_get (st, _TAGS_QUARK, GST_TYPE_TAG_LIST, &tags_st,
|
|
NULL)) {
|
|
gst_discoverer_merge_and_replace_tags (&info->tags, tags_st);
|
|
}
|
|
|
|
collect_common_information (info, st);
|
|
|
|
gst_caps_unref (caps);
|
|
return info;
|
|
}
|
|
|
|
}
|
|
|
|
static GstStructure *
|
|
find_stream_for_node (GstDiscoverer * dc, const GstStructure * topology)
|
|
{
|
|
GstPad *pad;
|
|
GstPad *target_pad = NULL;
|
|
GstStructure *st = NULL;
|
|
PrivateStream *ps;
|
|
guint i;
|
|
GList *tmp;
|
|
|
|
if (!dc->priv->streams) {
|
|
return NULL;
|
|
}
|
|
|
|
if (!gst_structure_id_has_field (topology, _TOPOLOGY_PAD_QUARK)) {
|
|
GST_DEBUG ("Could not find pad for node %" GST_PTR_FORMAT, topology);
|
|
return NULL;
|
|
}
|
|
|
|
gst_structure_id_get (topology, _TOPOLOGY_PAD_QUARK,
|
|
GST_TYPE_PAD, &pad, NULL);
|
|
|
|
for (i = 0, tmp = dc->priv->streams; tmp; tmp = tmp->next, i++) {
|
|
ps = (PrivateStream *) tmp->data;
|
|
|
|
target_pad = gst_ghost_pad_get_target (GST_GHOST_PAD (ps->pad));
|
|
if (target_pad == NULL)
|
|
continue;
|
|
gst_object_unref (target_pad);
|
|
|
|
if (target_pad == pad)
|
|
break;
|
|
}
|
|
|
|
if (tmp)
|
|
st = collect_stream_information (dc, ps, i);
|
|
|
|
gst_object_unref (pad);
|
|
|
|
return st;
|
|
}
|
|
|
|
/* this can fail due to {framed,parsed}={TRUE,FALSE} differences, thus we filter
|
|
* the parent */
|
|
static gboolean
|
|
child_is_same_stream (const GstCaps * _parent, const GstCaps * child)
|
|
{
|
|
GstCaps *parent;
|
|
gboolean res;
|
|
|
|
if (_parent == child)
|
|
return TRUE;
|
|
if (!_parent)
|
|
return FALSE;
|
|
if (!child)
|
|
return FALSE;
|
|
|
|
parent = copy_and_clean_caps (_parent);
|
|
res = gst_caps_can_intersect (parent, child);
|
|
gst_caps_unref (parent);
|
|
return res;
|
|
}
|
|
|
|
|
|
static gboolean
|
|
child_is_raw_stream (const GstCaps * parent, const GstCaps * child)
|
|
{
|
|
const GstStructure *st1, *st2;
|
|
const gchar *name1, *name2;
|
|
|
|
if (parent == child)
|
|
return TRUE;
|
|
if (!parent)
|
|
return FALSE;
|
|
if (!child)
|
|
return FALSE;
|
|
|
|
st1 = gst_caps_get_structure (parent, 0);
|
|
name1 = gst_structure_get_name (st1);
|
|
st2 = gst_caps_get_structure (child, 0);
|
|
name2 = gst_structure_get_name (st2);
|
|
|
|
if ((g_str_has_prefix (name1, "audio/") &&
|
|
g_str_has_prefix (name2, "audio/x-raw")) ||
|
|
((g_str_has_prefix (name1, "video/") ||
|
|
g_str_has_prefix (name1, "image/")) &&
|
|
g_str_has_prefix (name2, "video/x-raw"))) {
|
|
/* child is the "raw" sub-stream corresponding to parent */
|
|
return TRUE;
|
|
}
|
|
|
|
if (is_subtitle_caps (parent))
|
|
return TRUE;
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/* If a parent is non-NULL, collected stream information will be appended to it
|
|
* (and where the information exists, it will be overridden)
|
|
*/
|
|
static GstDiscovererStreamInfo *
|
|
parse_stream_topology (GstDiscoverer * dc, const GstStructure * topology,
|
|
GstDiscovererStreamInfo * parent)
|
|
{
|
|
GstDiscovererStreamInfo *res = NULL;
|
|
GstCaps *caps = NULL;
|
|
const GValue *nval = NULL;
|
|
|
|
GST_DEBUG ("parsing: %" GST_PTR_FORMAT, topology);
|
|
|
|
nval = gst_structure_get_value (topology, "next");
|
|
|
|
if (nval == NULL || GST_VALUE_HOLDS_STRUCTURE (nval)) {
|
|
GstStructure *st = find_stream_for_node (dc, topology);
|
|
gboolean add_to_list = TRUE;
|
|
|
|
if (st) {
|
|
res = collect_information (dc, st, parent);
|
|
gst_structure_free (st);
|
|
} else {
|
|
/* Didn't find a stream structure, so let's just use the caps we have */
|
|
res = collect_information (dc, topology, parent);
|
|
}
|
|
|
|
if (nval == NULL) {
|
|
/* FIXME : aggregate with information from main streams */
|
|
GST_DEBUG ("Couldn't find 'next' ! might be the last entry");
|
|
} else {
|
|
GstPad *srcpad;
|
|
|
|
st = (GstStructure *) gst_value_get_structure (nval);
|
|
|
|
GST_DEBUG ("next is a structure %" GST_PTR_FORMAT, st);
|
|
|
|
if (!parent)
|
|
parent = res;
|
|
|
|
if (gst_structure_id_get (st, _ELEMENT_SRCPAD_QUARK, GST_TYPE_PAD,
|
|
&srcpad, NULL)) {
|
|
caps = gst_pad_get_current_caps (srcpad);
|
|
gst_object_unref (srcpad);
|
|
}
|
|
if (!caps) {
|
|
gst_structure_id_get (st, _CAPS_QUARK, GST_TYPE_CAPS, &caps, NULL);
|
|
}
|
|
|
|
if (caps) {
|
|
if (child_is_same_stream (parent->caps, caps)) {
|
|
/* We sometimes get an extra sub-stream from the parser. If this is
|
|
* the case, we just replace the parent caps with this stream's caps
|
|
* since they might contain more information */
|
|
gst_caps_replace (&parent->caps, caps);
|
|
|
|
parse_stream_topology (dc, st, parent);
|
|
add_to_list = FALSE;
|
|
} else if (child_is_raw_stream (parent->caps, caps)) {
|
|
/* This is the "raw" stream corresponding to the parent. This
|
|
* contains more information than the parent, tags etc. */
|
|
parse_stream_topology (dc, st, parent);
|
|
add_to_list = FALSE;
|
|
} else {
|
|
GstDiscovererStreamInfo *next = parse_stream_topology (dc, st, NULL);
|
|
res->next = next;
|
|
next->previous = res;
|
|
}
|
|
gst_caps_unref (caps);
|
|
}
|
|
}
|
|
|
|
if (add_to_list) {
|
|
res->stream_number = dc->priv->current_info->stream_count++;
|
|
dc->priv->current_info->stream_list =
|
|
g_list_append (dc->priv->current_info->stream_list, res);
|
|
} else {
|
|
gst_discoverer_stream_info_unref (res);
|
|
}
|
|
|
|
} else if (GST_VALUE_HOLDS_LIST (nval)) {
|
|
guint i, len;
|
|
GstDiscovererContainerInfo *cont;
|
|
GstPad *srcpad;
|
|
|
|
if (gst_structure_id_get (topology, _ELEMENT_SRCPAD_QUARK, GST_TYPE_PAD,
|
|
&srcpad, NULL)) {
|
|
caps = gst_pad_get_current_caps (srcpad);
|
|
gst_object_unref (srcpad);
|
|
}
|
|
if (!caps) {
|
|
gst_structure_id_get (topology, _CAPS_QUARK, GST_TYPE_CAPS, &caps, NULL);
|
|
}
|
|
|
|
if (!caps)
|
|
GST_WARNING ("Couldn't find caps !");
|
|
|
|
len = gst_value_list_get_size (nval);
|
|
GST_DEBUG ("next is a list of %d entries", len);
|
|
|
|
cont = (GstDiscovererContainerInfo *)
|
|
g_object_new (GST_TYPE_DISCOVERER_CONTAINER_INFO, NULL);
|
|
cont->parent.caps = caps;
|
|
if (dc->priv->global_tags)
|
|
cont->tags = gst_tag_list_ref (dc->priv->global_tags);
|
|
res = (GstDiscovererStreamInfo *) cont;
|
|
|
|
for (i = 0; i < len; i++) {
|
|
const GValue *subv = gst_value_list_get_value (nval, i);
|
|
const GstStructure *subst = gst_value_get_structure (subv);
|
|
GstDiscovererStreamInfo *substream;
|
|
|
|
GST_DEBUG ("%d %" GST_PTR_FORMAT, i, subst);
|
|
|
|
substream = parse_stream_topology (dc, subst, NULL);
|
|
|
|
substream->previous = res;
|
|
cont->streams =
|
|
g_list_append (cont->streams,
|
|
gst_discoverer_stream_info_ref (substream));
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
/* Required DISCO_LOCK to be taken, and will release it */
|
|
static void
|
|
setup_next_uri_locked (GstDiscoverer * dc)
|
|
{
|
|
if (dc->priv->pending_uris != NULL) {
|
|
gboolean ready = _setup_locked (dc);
|
|
DISCO_UNLOCK (dc);
|
|
|
|
if (!ready) {
|
|
/* Start timeout */
|
|
if (dc->priv->processing)
|
|
handle_current_async (dc);
|
|
} else {
|
|
g_idle_add_full (G_PRIORITY_DEFAULT_IDLE,
|
|
(GSourceFunc) emit_discovererd_and_next, gst_object_ref (dc),
|
|
gst_object_unref);
|
|
}
|
|
} else {
|
|
/* We're done ! */
|
|
DISCO_UNLOCK (dc);
|
|
g_signal_emit (dc, gst_discoverer_signals[SIGNAL_FINISHED], 0);
|
|
}
|
|
}
|
|
|
|
static GstDiscovererInfo *
|
|
_ensure_info_tags (GstDiscoverer * dc)
|
|
{
|
|
GstDiscovererInfo *info = dc->priv->current_info;
|
|
|
|
if (dc->priv->all_tags)
|
|
info->tags = dc->priv->all_tags;
|
|
dc->priv->all_tags = NULL;
|
|
return info;
|
|
}
|
|
|
|
static void
|
|
emit_discovererd (GstDiscoverer * dc)
|
|
{
|
|
GstDiscovererInfo *info = _ensure_info_tags (dc);
|
|
GST_DEBUG_OBJECT (dc, "Emitting 'discoverered' %s", info->uri);
|
|
g_signal_emit (dc, gst_discoverer_signals[SIGNAL_DISCOVERED], 0,
|
|
info, dc->priv->current_error);
|
|
/* Clients get a copy of current_info since it is a boxed type */
|
|
gst_discoverer_info_unref (dc->priv->current_info);
|
|
dc->priv->current_info = NULL;
|
|
}
|
|
|
|
static gboolean
|
|
emit_discovererd_and_next (GstDiscoverer * dc)
|
|
{
|
|
emit_discovererd (dc);
|
|
|
|
DISCO_LOCK (dc);
|
|
setup_next_uri_locked (dc);
|
|
|
|
return G_SOURCE_REMOVE;
|
|
}
|
|
|
|
/* Called when pipeline is pre-rolled */
|
|
static void
|
|
discoverer_collect (GstDiscoverer * dc)
|
|
{
|
|
GST_DEBUG ("Collecting information");
|
|
|
|
/* Stop the timeout handler if present */
|
|
if (dc->priv->timeout_source) {
|
|
g_source_destroy (dc->priv->timeout_source);
|
|
g_source_unref (dc->priv->timeout_source);
|
|
dc->priv->timeout_source = NULL;
|
|
}
|
|
|
|
if (dc->priv->use_cache && dc->priv->current_info
|
|
&& dc->priv->current_info->from_cache) {
|
|
GST_DEBUG_OBJECT (dc,
|
|
"Nothing to collect as the info was built from" " the cache");
|
|
return;
|
|
}
|
|
|
|
if (dc->priv->streams) {
|
|
/* FIXME : Make this querying optional */
|
|
if (TRUE) {
|
|
GstElement *pipeline = (GstElement *) dc->priv->pipeline;
|
|
gint64 dur;
|
|
|
|
GST_DEBUG ("Attempting to query duration");
|
|
|
|
if (gst_element_query_duration (pipeline, GST_FORMAT_TIME, &dur)) {
|
|
GST_DEBUG ("Got duration %" GST_TIME_FORMAT, GST_TIME_ARGS (dur));
|
|
dc->priv->current_info->duration = (guint64) dur;
|
|
} else if (dc->priv->current_info->result != GST_DISCOVERER_ERROR) {
|
|
GstStateChangeReturn sret;
|
|
/* Note: We don't switch to PLAYING if we previously saw an ERROR since
|
|
* the state of various element isn't guaranteed anymore */
|
|
|
|
/* Some parsers may not even return a rough estimate right away, e.g.
|
|
* because they've only processed a single frame so far, so if we
|
|
* didn't get a duration the first time, spin a bit and try again.
|
|
* Ugly, but still better than making parsers or other elements return
|
|
* completely bogus values. We need some API extensions to solve this
|
|
* better. */
|
|
GST_INFO ("No duration yet, try a bit harder..");
|
|
/* Make sure we don't add/remove elements while switching to PLAYING itself */
|
|
DISCO_LOCK (dc);
|
|
sret = gst_element_set_state (pipeline, GST_STATE_PLAYING);
|
|
DISCO_UNLOCK (dc);
|
|
if (sret != GST_STATE_CHANGE_FAILURE) {
|
|
int i;
|
|
|
|
for (i = 0; i < 2; ++i) {
|
|
g_usleep (G_USEC_PER_SEC / 20);
|
|
if (gst_element_query_duration (pipeline, GST_FORMAT_TIME, &dur)
|
|
&& dur > 0) {
|
|
GST_DEBUG ("Got duration %" GST_TIME_FORMAT, GST_TIME_ARGS (dur));
|
|
dc->priv->current_info->duration = (guint64) dur;
|
|
break;
|
|
}
|
|
}
|
|
gst_element_set_state (pipeline, GST_STATE_PAUSED);
|
|
}
|
|
}
|
|
|
|
if (dc->priv->seeking_query) {
|
|
if (gst_element_query (pipeline, dc->priv->seeking_query)) {
|
|
GstFormat format;
|
|
gboolean seekable;
|
|
|
|
gst_query_parse_seeking (dc->priv->seeking_query, &format,
|
|
&seekable, NULL, NULL);
|
|
if (format == GST_FORMAT_TIME) {
|
|
GST_DEBUG ("Got seekable %d", seekable);
|
|
dc->priv->current_info->seekable = seekable;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (dc->priv->target_state == GST_STATE_PAUSED)
|
|
dc->priv->current_info->live = FALSE;
|
|
else
|
|
dc->priv->current_info->live = TRUE;
|
|
|
|
if (dc->priv->current_topology) {
|
|
dc->priv->current_info->stream_count = 1;
|
|
dc->priv->current_info->stream_info = parse_stream_topology (dc,
|
|
dc->priv->current_topology, NULL);
|
|
if (dc->priv->current_info->stream_info)
|
|
dc->priv->current_info->stream_info->stream_number = 0;
|
|
}
|
|
|
|
/*
|
|
* Images need some special handling. They do not have a duration, have
|
|
* caps named image/<foo> (th exception being MJPEG video which is also
|
|
* type image/jpeg), and should consist of precisely one stream (actually
|
|
* initially there are 2, the image and raw stream, but we squash these
|
|
* while parsing the stream topology). At some point, if we find that these
|
|
* conditions are not sufficient, we can count the number of decoders and
|
|
* parsers in the chain, and if there's more than one decoder, or any
|
|
* parser at all, we should not mark this as an image.
|
|
*/
|
|
if (dc->priv->current_info->duration == 0 &&
|
|
dc->priv->current_info->stream_info != NULL &&
|
|
dc->priv->current_info->stream_info->next == NULL) {
|
|
GstDiscovererStreamInfo *stream_info;
|
|
GstStructure *st;
|
|
|
|
stream_info = dc->priv->current_info->stream_info;
|
|
st = gst_caps_get_structure (stream_info->caps, 0);
|
|
|
|
if (g_str_has_prefix (gst_structure_get_name (st), "image/"))
|
|
((GstDiscovererVideoInfo *) stream_info)->is_image = TRUE;
|
|
}
|
|
}
|
|
|
|
if (dc->priv->use_cache && dc->priv->current_info->cachefile &&
|
|
dc->priv->current_info->result == GST_DISCOVERER_OK) {
|
|
GVariant *variant = gst_discoverer_info_to_variant (dc->priv->current_info,
|
|
GST_DISCOVERER_SERIALIZE_ALL);
|
|
|
|
g_file_set_contents (dc->priv->current_info->cachefile,
|
|
g_variant_get_data (variant), g_variant_get_size (variant), NULL);
|
|
g_variant_unref (variant);
|
|
}
|
|
|
|
if (dc->priv->async)
|
|
emit_discovererd (dc);
|
|
}
|
|
|
|
static void
|
|
get_async_cb (gpointer cb_data, GSource * source, GSourceFunc * func,
|
|
gpointer * data)
|
|
{
|
|
*func = (GSourceFunc) async_timeout_cb;
|
|
*data = cb_data;
|
|
}
|
|
|
|
/* Wrapper since GSourceCallbackFuncs don't expect a return value from ref() */
|
|
static void
|
|
_void_g_object_ref (gpointer object)
|
|
{
|
|
g_object_ref (G_OBJECT (object));
|
|
}
|
|
|
|
static void
|
|
handle_current_async (GstDiscoverer * dc)
|
|
{
|
|
GSource *source;
|
|
static GSourceCallbackFuncs cb_funcs = {
|
|
_void_g_object_ref,
|
|
g_object_unref,
|
|
get_async_cb,
|
|
};
|
|
|
|
/* Attach a timeout to the main context */
|
|
source = g_timeout_source_new (dc->priv->timeout / GST_MSECOND);
|
|
g_source_set_callback_indirect (source, g_object_ref (dc), &cb_funcs);
|
|
g_source_attach (source, dc->priv->ctx);
|
|
dc->priv->timeout_source = source;
|
|
}
|
|
|
|
|
|
/* Returns TRUE if processing should stop */
|
|
static gboolean
|
|
handle_message (GstDiscoverer * dc, GstMessage * msg)
|
|
{
|
|
gboolean done = FALSE;
|
|
const gchar *dump_name = NULL;
|
|
|
|
GST_DEBUG_OBJECT (GST_MESSAGE_SRC (msg), "got a %s message",
|
|
GST_MESSAGE_TYPE_NAME (msg));
|
|
|
|
switch (GST_MESSAGE_TYPE (msg)) {
|
|
case GST_MESSAGE_ERROR:{
|
|
GError *gerr;
|
|
gchar *debug;
|
|
|
|
gst_message_parse_error (msg, &gerr, &debug);
|
|
GST_WARNING_OBJECT (GST_MESSAGE_SRC (msg),
|
|
"Got an error [debug:%s], [message:%s]", debug, gerr->message);
|
|
dc->priv->current_error = gerr;
|
|
g_free (debug);
|
|
|
|
/* We need to stop */
|
|
done = TRUE;
|
|
dump_name = "gst-discoverer-error";
|
|
|
|
/* Don't override missing plugin result code for missing plugin errors */
|
|
if (dc->priv->current_info->result != GST_DISCOVERER_MISSING_PLUGINS ||
|
|
(!g_error_matches (gerr, GST_CORE_ERROR,
|
|
GST_CORE_ERROR_MISSING_PLUGIN) &&
|
|
!g_error_matches (gerr, GST_STREAM_ERROR,
|
|
GST_STREAM_ERROR_CODEC_NOT_FOUND))) {
|
|
GST_DEBUG ("Setting result to ERROR");
|
|
dc->priv->current_info->result = GST_DISCOVERER_ERROR;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case GST_MESSAGE_WARNING:{
|
|
GError *err;
|
|
gchar *debug = NULL;
|
|
|
|
gst_message_parse_warning (msg, &err, &debug);
|
|
GST_WARNING_OBJECT (GST_MESSAGE_SRC (msg),
|
|
"Got a warning [debug:%s], [message:%s]", debug, err->message);
|
|
g_clear_error (&err);
|
|
g_free (debug);
|
|
dump_name = "gst-discoverer-warning";
|
|
break;
|
|
}
|
|
|
|
case GST_MESSAGE_EOS:
|
|
GST_DEBUG ("Got EOS !");
|
|
done = TRUE;
|
|
dump_name = "gst-discoverer-eos";
|
|
break;
|
|
|
|
case GST_MESSAGE_APPLICATION:{
|
|
const gchar *name =
|
|
gst_structure_get_name (gst_message_get_structure (msg));
|
|
|
|
if (g_strcmp0 (name, "DiscovererDone"))
|
|
break;
|
|
|
|
/* Maybe we already reached the target state, and all we're waiting for
|
|
* is either the subtitle tags or no_more_pads
|
|
*/
|
|
DISCO_LOCK (dc);
|
|
if (dc->priv->pending_subtitle_pads == 0)
|
|
done = dc->priv->no_more_pads
|
|
&& dc->priv->target_state == dc->priv->current_state;
|
|
DISCO_UNLOCK (dc);
|
|
|
|
if (done)
|
|
dump_name = "gst-discoverer-application-message";
|
|
}
|
|
break;
|
|
|
|
case GST_MESSAGE_STATE_CHANGED:{
|
|
GstState old, new, pending;
|
|
|
|
gst_message_parse_state_changed (msg, &old, &new, &pending);
|
|
if (GST_MESSAGE_SRC (msg) == (GstObject *) dc->priv->pipeline) {
|
|
DISCO_LOCK (dc);
|
|
dc->priv->current_state = new;
|
|
|
|
if (dc->priv->pending_subtitle_pads == 0)
|
|
done = dc->priv->no_more_pads
|
|
&& dc->priv->target_state == dc->priv->current_state;
|
|
/* Else we should get unblocked in GST_MESSAGE_APPLICATION */
|
|
|
|
DISCO_UNLOCK (dc);
|
|
}
|
|
|
|
if (done)
|
|
dump_name = "gst-discoverer-target-state";
|
|
}
|
|
break;
|
|
|
|
case GST_MESSAGE_ELEMENT:
|
|
{
|
|
GQuark sttype;
|
|
const GstStructure *structure;
|
|
|
|
structure = gst_message_get_structure (msg);
|
|
sttype = gst_structure_get_name_id (structure);
|
|
GST_DEBUG_OBJECT (GST_MESSAGE_SRC (msg),
|
|
"structure %" GST_PTR_FORMAT, structure);
|
|
if (sttype == _MISSING_PLUGIN_QUARK) {
|
|
GST_DEBUG_OBJECT (GST_MESSAGE_SRC (msg),
|
|
"Setting result to MISSING_PLUGINS");
|
|
dc->priv->current_info->result = GST_DISCOVERER_MISSING_PLUGINS;
|
|
/* FIXME 2.0 Remove completely the ->misc
|
|
* Keep the old behaviour for now.
|
|
*/
|
|
if (dc->priv->current_info->misc)
|
|
gst_structure_free (dc->priv->current_info->misc);
|
|
dc->priv->current_info->misc = gst_structure_copy (structure);
|
|
g_ptr_array_add (dc->priv->current_info->missing_elements_details,
|
|
gst_missing_plugin_message_get_installer_detail (msg));
|
|
} else if (sttype == _STREAM_TOPOLOGY_QUARK) {
|
|
if (dc->priv->current_topology)
|
|
gst_structure_free (dc->priv->current_topology);
|
|
dc->priv->current_topology = gst_structure_copy (structure);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case GST_MESSAGE_TAG:
|
|
{
|
|
GstTagList *tl, *tmp = NULL;
|
|
GstTagScope scope;
|
|
|
|
gst_message_parse_tag (msg, &tl);
|
|
scope = gst_tag_list_get_scope (tl);
|
|
GST_DEBUG_OBJECT (GST_MESSAGE_SRC (msg), "Got tags %" GST_PTR_FORMAT, tl);
|
|
|
|
tmp = gst_tag_list_merge (dc->priv->all_tags, tl, GST_TAG_MERGE_APPEND);
|
|
if (dc->priv->all_tags)
|
|
gst_tag_list_unref (dc->priv->all_tags);
|
|
dc->priv->all_tags = tmp;
|
|
|
|
if (scope == GST_TAG_SCOPE_STREAM) {
|
|
for (GList * curr = dc->priv->streams; curr; curr = curr->next) {
|
|
PrivateStream *ps = (PrivateStream *) curr->data;
|
|
if (GST_MESSAGE_SRC (msg) == GST_OBJECT_CAST (ps->sink)) {
|
|
tmp = gst_tag_list_merge (ps->tags, tl, GST_TAG_MERGE_APPEND);
|
|
if (ps->tags)
|
|
gst_tag_list_unref (ps->tags);
|
|
ps->tags = tmp;
|
|
GST_DEBUG_OBJECT (ps->pad, "tags %" GST_PTR_FORMAT, ps->tags);
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
tmp =
|
|
gst_tag_list_merge (dc->priv->global_tags, tl,
|
|
GST_TAG_MERGE_APPEND);
|
|
if (dc->priv->global_tags)
|
|
gst_tag_list_unref (dc->priv->global_tags);
|
|
dc->priv->global_tags = tmp;
|
|
}
|
|
gst_tag_list_unref (tl);
|
|
}
|
|
break;
|
|
case GST_MESSAGE_TOC:
|
|
{
|
|
GstToc *tmp;
|
|
|
|
gst_message_parse_toc (msg, &tmp, NULL);
|
|
GST_DEBUG_OBJECT (GST_MESSAGE_SRC (msg), "Got toc %" GST_PTR_FORMAT, tmp);
|
|
if (dc->priv->current_info->toc)
|
|
gst_toc_unref (dc->priv->current_info->toc);
|
|
dc->priv->current_info->toc = tmp; /* transfer ownership */
|
|
GST_DEBUG_OBJECT (GST_MESSAGE_SRC (msg), "Current info %p, toc %"
|
|
GST_PTR_FORMAT, dc->priv->current_info, tmp);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (dump_name != NULL) {
|
|
/* dump graph when done or for warnings */
|
|
GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS (GST_BIN (dc->priv->pipeline),
|
|
GST_DEBUG_GRAPH_SHOW_ALL, dump_name);
|
|
}
|
|
return done;
|
|
}
|
|
|
|
static void
|
|
handle_current_sync (GstDiscoverer * dc)
|
|
{
|
|
GTimer *timer;
|
|
gdouble deadline = ((gdouble) dc->priv->timeout) / GST_SECOND;
|
|
GstMessage *msg;
|
|
gboolean done = FALSE;
|
|
|
|
timer = g_timer_new ();
|
|
g_timer_start (timer);
|
|
|
|
do {
|
|
/* poll bus with timeout */
|
|
/* FIXME : make the timeout more fine-tuned */
|
|
if ((msg = gst_bus_timed_pop (dc->priv->bus, GST_SECOND / 2))) {
|
|
done = handle_message (dc, msg);
|
|
gst_message_unref (msg);
|
|
}
|
|
} while (!done && (g_timer_elapsed (timer, NULL) < deadline));
|
|
|
|
/* return result */
|
|
if (!done) {
|
|
GST_DEBUG ("we timed out! Setting result to TIMEOUT");
|
|
dc->priv->current_info->result = GST_DISCOVERER_TIMEOUT;
|
|
}
|
|
|
|
DISCO_LOCK (dc);
|
|
dc->priv->processing = FALSE;
|
|
DISCO_UNLOCK (dc);
|
|
|
|
|
|
GST_DEBUG ("Done");
|
|
|
|
g_timer_stop (timer);
|
|
g_timer_destroy (timer);
|
|
}
|
|
|
|
static gchar *
|
|
_serialized_info_get_path (GstDiscoverer * dc, gchar * uri)
|
|
{
|
|
GChecksum *cs = NULL;
|
|
GStatBuf file_status;
|
|
gchar *location = NULL, *res = NULL, *cache_dir = NULL, *tmp = NULL,
|
|
*protocol = gst_uri_get_protocol (uri), hash_dirname[3] = "00";
|
|
const gchar *checksum;
|
|
|
|
if (g_ascii_strcasecmp (protocol, "file") != 0) {
|
|
GST_DEBUG_OBJECT (dc, "Can not work with serialized DiscovererInfo"
|
|
" on non local files - protocol: %s", protocol);
|
|
|
|
goto done;
|
|
}
|
|
|
|
location = gst_uri_get_location (uri);
|
|
if (g_stat (location, &file_status) < 0) {
|
|
GST_DEBUG_OBJECT (dc, "Could not get stat for file: %s", location);
|
|
|
|
goto done;
|
|
}
|
|
|
|
tmp = g_strdup_printf ("%s-%" G_GSIZE_FORMAT "-%" G_GINT64_FORMAT,
|
|
location, (gsize) file_status.st_size, (gint64) file_status.st_mtime);
|
|
cs = g_checksum_new (G_CHECKSUM_SHA1);
|
|
g_checksum_update (cs, (const guchar *) tmp, strlen (tmp));
|
|
checksum = g_checksum_get_string (cs);
|
|
|
|
hash_dirname[0] = checksum[0];
|
|
hash_dirname[1] = checksum[1];
|
|
cache_dir =
|
|
g_build_filename (g_get_user_cache_dir (), "gstreamer-" GST_API_VERSION,
|
|
CACHE_DIRNAME, hash_dirname, NULL);
|
|
g_mkdir_with_parents (cache_dir, 0777);
|
|
|
|
res = g_build_filename (cache_dir, &checksum[2], NULL);
|
|
|
|
done:
|
|
g_checksum_free (cs);
|
|
g_free (cache_dir);
|
|
g_free (location);
|
|
g_free (tmp);
|
|
g_free (protocol);
|
|
|
|
return res;
|
|
}
|
|
|
|
static GstDiscovererInfo *
|
|
_get_info_from_cachefile (GstDiscoverer * dc, gchar * cachefile)
|
|
{
|
|
gchar *data;
|
|
gsize length;
|
|
|
|
if (g_file_get_contents (cachefile, &data, &length, NULL)) {
|
|
GstDiscovererInfo *info = NULL;
|
|
GVariant *variant =
|
|
g_variant_new_from_data (G_VARIANT_TYPE ("v"), data, length,
|
|
TRUE, NULL, NULL);
|
|
|
|
info = gst_discoverer_info_from_variant (variant);
|
|
g_variant_unref (variant);
|
|
|
|
if (info) {
|
|
info->cachefile = cachefile;
|
|
info->from_cache = (gpointer) 0x01;
|
|
} else {
|
|
g_free (cachefile);
|
|
}
|
|
|
|
GST_INFO_OBJECT (dc, "Got info from cache: %p", info);
|
|
g_free (data);
|
|
|
|
return info;
|
|
} else {
|
|
g_free (cachefile);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static GstDiscovererInfo *
|
|
load_serialized_info (GstDiscoverer * dc, gchar * uri)
|
|
{
|
|
GstDiscovererInfo *res = NULL;
|
|
|
|
if (dc->priv->use_cache) {
|
|
gchar *cachefile = _serialized_info_get_path (dc, uri);
|
|
|
|
if (cachefile) {
|
|
res = _get_info_from_cachefile (dc, cachefile);
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static gboolean
|
|
_setup_locked (GstDiscoverer * dc)
|
|
{
|
|
GstStateChangeReturn ret;
|
|
gchar *uri = (gchar *) dc->priv->pending_uris->data;
|
|
|
|
dc->priv->pending_uris =
|
|
g_list_delete_link (dc->priv->pending_uris, dc->priv->pending_uris);
|
|
|
|
|
|
GST_DEBUG ("Setting up");
|
|
|
|
g_signal_emit (dc, gst_discoverer_signals[SIGNAL_LOAD_SERIALIZED_INFO], 0,
|
|
uri, &dc->priv->current_info);
|
|
if (dc->priv->current_info) {
|
|
/* Make sure the URI is exactly what the user passed in */
|
|
g_free (dc->priv->current_info->uri);
|
|
dc->priv->current_info->uri = uri;
|
|
|
|
dc->priv->processing = FALSE;
|
|
dc->priv->target_state = GST_STATE_NULL;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Pop URI off the pending URI list */
|
|
dc->priv->current_info =
|
|
(GstDiscovererInfo *) g_object_new (GST_TYPE_DISCOVERER_INFO, NULL);
|
|
if (dc->priv->use_cache)
|
|
dc->priv->current_info->cachefile = _serialized_info_get_path (dc, uri);
|
|
dc->priv->current_info->uri = uri;
|
|
|
|
/* set uri on uridecodebin */
|
|
g_object_set (dc->priv->uridecodebin, "uri", dc->priv->current_info->uri,
|
|
NULL);
|
|
|
|
GST_DEBUG ("Current is now %s", dc->priv->current_info->uri);
|
|
|
|
dc->priv->processing = TRUE;
|
|
|
|
dc->priv->target_state = GST_STATE_PAUSED;
|
|
|
|
/* set pipeline to PAUSED */
|
|
DISCO_UNLOCK (dc);
|
|
GST_DEBUG ("Setting pipeline to PAUSED");
|
|
ret =
|
|
gst_element_set_state ((GstElement *) dc->priv->pipeline,
|
|
dc->priv->target_state);
|
|
|
|
if (ret == GST_STATE_CHANGE_NO_PREROLL) {
|
|
GST_DEBUG ("Source is live, switching to PLAYING");
|
|
dc->priv->target_state = GST_STATE_PLAYING;
|
|
ret =
|
|
gst_element_set_state ((GstElement *) dc->priv->pipeline,
|
|
dc->priv->target_state);
|
|
}
|
|
DISCO_LOCK (dc);
|
|
|
|
|
|
GST_DEBUG_OBJECT (dc, "Pipeline going to PAUSED : %s",
|
|
gst_element_state_change_return_get_name (ret));
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
discoverer_cleanup (GstDiscoverer * dc)
|
|
{
|
|
GST_DEBUG ("Cleaning up");
|
|
|
|
DISCO_LOCK (dc);
|
|
dc->priv->cleanup = TRUE;
|
|
DISCO_UNLOCK (dc);
|
|
|
|
gst_bus_set_flushing (dc->priv->bus, TRUE);
|
|
|
|
DISCO_LOCK (dc);
|
|
if (dc->priv->current_error) {
|
|
g_error_free (dc->priv->current_error);
|
|
DISCO_UNLOCK (dc);
|
|
gst_element_set_state ((GstElement *) dc->priv->pipeline, GST_STATE_NULL);
|
|
} else {
|
|
DISCO_UNLOCK (dc);
|
|
}
|
|
|
|
gst_element_set_state ((GstElement *) dc->priv->pipeline, GST_STATE_READY);
|
|
gst_bus_set_flushing (dc->priv->bus, FALSE);
|
|
|
|
DISCO_LOCK (dc);
|
|
dc->priv->current_error = NULL;
|
|
if (dc->priv->current_topology) {
|
|
gst_structure_free (dc->priv->current_topology);
|
|
dc->priv->current_topology = NULL;
|
|
}
|
|
|
|
dc->priv->current_info = NULL;
|
|
|
|
if (dc->priv->all_tags) {
|
|
gst_tag_list_unref (dc->priv->all_tags);
|
|
dc->priv->all_tags = NULL;
|
|
}
|
|
|
|
if (dc->priv->global_tags) {
|
|
gst_tag_list_unref (dc->priv->global_tags);
|
|
dc->priv->global_tags = NULL;
|
|
}
|
|
|
|
dc->priv->pending_subtitle_pads = 0;
|
|
|
|
dc->priv->current_state = GST_STATE_NULL;
|
|
dc->priv->target_state = GST_STATE_NULL;
|
|
dc->priv->no_more_pads = FALSE;
|
|
dc->priv->cleanup = FALSE;
|
|
|
|
|
|
/* Try popping the next uri */
|
|
if (dc->priv->async) {
|
|
setup_next_uri_locked (dc);
|
|
} else
|
|
DISCO_UNLOCK (dc);
|
|
|
|
GST_DEBUG ("out");
|
|
}
|
|
|
|
static void
|
|
discoverer_bus_cb (GstBus * bus, GstMessage * msg, GstDiscoverer * dc)
|
|
{
|
|
if (dc->priv->processing) {
|
|
if (handle_message (dc, msg)) {
|
|
GST_DEBUG ("Stopping asynchronously");
|
|
/* Serialise with _event_probe() */
|
|
DISCO_LOCK (dc);
|
|
dc->priv->processing = FALSE;
|
|
DISCO_UNLOCK (dc);
|
|
discoverer_collect (dc);
|
|
discoverer_cleanup (dc);
|
|
}
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
async_timeout_cb (GstDiscoverer * dc)
|
|
{
|
|
if (!g_source_is_destroyed (g_main_current_source ())) {
|
|
GST_DEBUG ("Setting result to TIMEOUT");
|
|
dc->priv->current_info->result = GST_DISCOVERER_TIMEOUT;
|
|
dc->priv->processing = FALSE;
|
|
discoverer_collect (dc);
|
|
discoverer_cleanup (dc);
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
/* If there is a pending URI, it will pop it from the list of pending
|
|
* URIs and start the discovery on it.
|
|
*
|
|
* Returns GST_DISCOVERER_OK if the next URI was popped and is processing,
|
|
* else a error flag.
|
|
*/
|
|
static GstDiscovererResult
|
|
start_discovering (GstDiscoverer * dc)
|
|
{
|
|
gboolean ready;
|
|
GstDiscovererResult res = GST_DISCOVERER_OK;
|
|
|
|
GST_DEBUG ("Starting");
|
|
|
|
DISCO_LOCK (dc);
|
|
if (dc->priv->pending_uris == NULL) {
|
|
GST_WARNING ("No URI to process");
|
|
res = GST_DISCOVERER_URI_INVALID;
|
|
DISCO_UNLOCK (dc);
|
|
goto beach;
|
|
}
|
|
|
|
if (dc->priv->current_info != NULL) {
|
|
GST_WARNING ("Already processing a file");
|
|
res = GST_DISCOVERER_BUSY;
|
|
DISCO_UNLOCK (dc);
|
|
goto beach;
|
|
}
|
|
|
|
g_signal_emit (dc, gst_discoverer_signals[SIGNAL_STARTING], 0);
|
|
|
|
ready = _setup_locked (dc);
|
|
|
|
DISCO_UNLOCK (dc);
|
|
|
|
if (dc->priv->async) {
|
|
if (ready) {
|
|
GSource *source;
|
|
|
|
source = g_idle_source_new ();
|
|
g_source_set_callback (source,
|
|
(GSourceFunc) emit_discovererd_and_next, gst_object_ref (dc),
|
|
gst_object_unref);
|
|
g_source_attach (source, dc->priv->ctx);
|
|
goto beach;
|
|
}
|
|
if (dc->priv->processing)
|
|
handle_current_async (dc);
|
|
} else {
|
|
if (!ready)
|
|
handle_current_sync (dc);
|
|
}
|
|
|
|
beach:
|
|
return res;
|
|
}
|
|
|
|
/* Serializing code */
|
|
|
|
static GVariant *
|
|
_serialize_common_stream_info (GstDiscovererStreamInfo * sinfo,
|
|
GstDiscovererSerializeFlags flags)
|
|
{
|
|
GVariant *common;
|
|
GVariant *nextv = NULL;
|
|
gchar *caps_str = NULL, *tags_str = NULL, *misc_str = NULL;
|
|
|
|
if (sinfo->caps && (flags & GST_DISCOVERER_SERIALIZE_CAPS))
|
|
caps_str = gst_caps_to_string (sinfo->caps);
|
|
|
|
if (sinfo->tags && (flags & GST_DISCOVERER_SERIALIZE_TAGS))
|
|
tags_str = gst_tag_list_to_string (sinfo->tags);
|
|
|
|
if (sinfo->misc && (flags & GST_DISCOVERER_SERIALIZE_MISC))
|
|
misc_str = gst_structure_to_string (sinfo->misc);
|
|
|
|
|
|
if (sinfo->next)
|
|
nextv = gst_discoverer_info_to_variant_recurse (sinfo->next, flags);
|
|
else
|
|
nextv = g_variant_new ("()");
|
|
|
|
common =
|
|
g_variant_new ("(msmsmsmsv)", sinfo->stream_id, caps_str, tags_str,
|
|
misc_str, nextv);
|
|
|
|
g_free (caps_str);
|
|
g_free (tags_str);
|
|
g_free (misc_str);
|
|
|
|
return common;
|
|
}
|
|
|
|
static GVariant *
|
|
_serialize_info (GstDiscovererInfo * info, GstDiscovererSerializeFlags flags)
|
|
{
|
|
gchar *tags_str = NULL;
|
|
GVariant *ret;
|
|
|
|
if (info->tags && (flags & GST_DISCOVERER_SERIALIZE_TAGS))
|
|
tags_str = gst_tag_list_to_string (info->tags);
|
|
|
|
ret =
|
|
g_variant_new ("(mstbmsb)", info->uri, info->duration, info->seekable,
|
|
tags_str, info->live);
|
|
|
|
g_free (tags_str);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GVariant *
|
|
_serialize_audio_stream_info (GstDiscovererAudioInfo * ainfo)
|
|
{
|
|
return g_variant_new ("(uuuuumst)",
|
|
ainfo->channels,
|
|
ainfo->sample_rate,
|
|
ainfo->bitrate, ainfo->max_bitrate, ainfo->depth, ainfo->language,
|
|
ainfo->channel_mask);
|
|
}
|
|
|
|
static GVariant *
|
|
_serialize_video_stream_info (GstDiscovererVideoInfo * vinfo)
|
|
{
|
|
return g_variant_new ("(uuuuuuubuub)",
|
|
vinfo->width,
|
|
vinfo->height,
|
|
vinfo->depth,
|
|
vinfo->framerate_num,
|
|
vinfo->framerate_denom,
|
|
vinfo->par_num,
|
|
vinfo->par_denom,
|
|
vinfo->interlaced, vinfo->bitrate, vinfo->max_bitrate, vinfo->is_image);
|
|
}
|
|
|
|
static GVariant *
|
|
_serialize_subtitle_stream_info (GstDiscovererSubtitleInfo * sinfo)
|
|
{
|
|
return g_variant_new ("ms", sinfo->language);
|
|
}
|
|
|
|
static GVariant *
|
|
gst_discoverer_info_to_variant_recurse (GstDiscovererStreamInfo * sinfo,
|
|
GstDiscovererSerializeFlags flags)
|
|
{
|
|
GVariant *stream_variant = NULL;
|
|
GVariant *common_stream_variant =
|
|
_serialize_common_stream_info (sinfo, flags);
|
|
|
|
if (GST_IS_DISCOVERER_CONTAINER_INFO (sinfo)) {
|
|
GList *tmp;
|
|
GList *streams =
|
|
gst_discoverer_container_info_get_streams (GST_DISCOVERER_CONTAINER_INFO
|
|
(sinfo));
|
|
|
|
if (g_list_length (streams) > 0) {
|
|
GVariantBuilder children;
|
|
GVariant *child_variant;
|
|
g_variant_builder_init (&children, G_VARIANT_TYPE_ARRAY);
|
|
|
|
for (tmp = streams; tmp; tmp = tmp->next) {
|
|
child_variant =
|
|
gst_discoverer_info_to_variant_recurse (tmp->data, flags);
|
|
g_variant_builder_add (&children, "v", child_variant);
|
|
}
|
|
stream_variant =
|
|
g_variant_new ("(yvav)", 'c', common_stream_variant, &children);
|
|
} else {
|
|
stream_variant =
|
|
g_variant_new ("(yvav)", 'c', common_stream_variant, NULL);
|
|
}
|
|
|
|
gst_discoverer_stream_info_list_free (streams);
|
|
} else if (GST_IS_DISCOVERER_AUDIO_INFO (sinfo)) {
|
|
GVariant *audio_stream_info =
|
|
_serialize_audio_stream_info (GST_DISCOVERER_AUDIO_INFO (sinfo));
|
|
stream_variant =
|
|
g_variant_new ("(yvv)", 'a', common_stream_variant, audio_stream_info);
|
|
} else if (GST_IS_DISCOVERER_VIDEO_INFO (sinfo)) {
|
|
GVariant *video_stream_info =
|
|
_serialize_video_stream_info (GST_DISCOVERER_VIDEO_INFO (sinfo));
|
|
stream_variant =
|
|
g_variant_new ("(yvv)", 'v', common_stream_variant, video_stream_info);
|
|
} else if (GST_IS_DISCOVERER_SUBTITLE_INFO (sinfo)) {
|
|
GVariant *subtitle_stream_info =
|
|
_serialize_subtitle_stream_info (GST_DISCOVERER_SUBTITLE_INFO (sinfo));
|
|
stream_variant =
|
|
g_variant_new ("(yvv)", 's', common_stream_variant,
|
|
subtitle_stream_info);
|
|
} else {
|
|
GVariant *nextv = NULL;
|
|
GstDiscovererStreamInfo *ninfo =
|
|
gst_discoverer_stream_info_get_next (sinfo);
|
|
|
|
if (ninfo) {
|
|
nextv = gst_discoverer_info_to_variant_recurse (ninfo, flags);
|
|
stream_variant =
|
|
g_variant_new ("(yvv)", 'n', common_stream_variant,
|
|
g_variant_new ("v", nextv));
|
|
} else {
|
|
stream_variant = g_variant_new ("(yv)", 'n', common_stream_variant);
|
|
}
|
|
}
|
|
|
|
return stream_variant;
|
|
}
|
|
|
|
/* Parsing code */
|
|
|
|
#define GET_FROM_TUPLE(v, t, n, val) G_STMT_START{ \
|
|
GVariant *child = g_variant_get_child_value (v, n); \
|
|
*val = g_variant_get_##t(child); \
|
|
g_variant_unref (child); \
|
|
}G_STMT_END
|
|
|
|
static const gchar *
|
|
_maybe_get_string_from_tuple (GVariant * tuple, guint index)
|
|
{
|
|
const gchar *ret = NULL;
|
|
GVariant *maybe;
|
|
GET_FROM_TUPLE (tuple, maybe, index, &maybe);
|
|
if (maybe) {
|
|
ret = g_variant_get_string (maybe, NULL);
|
|
g_variant_unref (maybe);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
_parse_info (GstDiscovererInfo * info, GVariant * info_variant)
|
|
{
|
|
const gchar *str;
|
|
|
|
str = _maybe_get_string_from_tuple (info_variant, 0);
|
|
if (str)
|
|
info->uri = g_strdup (str);
|
|
|
|
GET_FROM_TUPLE (info_variant, uint64, 1, &info->duration);
|
|
GET_FROM_TUPLE (info_variant, boolean, 2, &info->seekable);
|
|
|
|
str = _maybe_get_string_from_tuple (info_variant, 3);
|
|
if (str)
|
|
info->tags = gst_tag_list_new_from_string (str);
|
|
|
|
GET_FROM_TUPLE (info_variant, boolean, 4, &info->live);
|
|
}
|
|
|
|
static void
|
|
_parse_common_stream_info (GstDiscovererStreamInfo * sinfo, GVariant * common,
|
|
GstDiscovererInfo * info)
|
|
{
|
|
const gchar *str;
|
|
|
|
str = _maybe_get_string_from_tuple (common, 0);
|
|
if (str)
|
|
sinfo->stream_id = g_strdup (str);
|
|
|
|
str = _maybe_get_string_from_tuple (common, 1);
|
|
if (str)
|
|
sinfo->caps = gst_caps_from_string (str);
|
|
|
|
str = _maybe_get_string_from_tuple (common, 2);
|
|
if (str)
|
|
sinfo->tags = gst_tag_list_new_from_string (str);
|
|
|
|
str = _maybe_get_string_from_tuple (common, 3);
|
|
if (str)
|
|
sinfo->misc = gst_structure_new_from_string (str);
|
|
|
|
if (g_variant_n_children (common) > 4) {
|
|
GVariant *nextv;
|
|
|
|
GET_FROM_TUPLE (common, variant, 4, &nextv);
|
|
if (g_variant_n_children (nextv) > 0) {
|
|
sinfo->next = _parse_discovery (nextv, info);
|
|
}
|
|
g_variant_unref (nextv);
|
|
}
|
|
|
|
g_variant_unref (common);
|
|
}
|
|
|
|
static void
|
|
_parse_audio_stream_info (GstDiscovererAudioInfo * ainfo, GVariant * specific)
|
|
{
|
|
const gchar *str;
|
|
|
|
GET_FROM_TUPLE (specific, uint32, 0, &ainfo->channels);
|
|
GET_FROM_TUPLE (specific, uint32, 1, &ainfo->sample_rate);
|
|
GET_FROM_TUPLE (specific, uint32, 2, &ainfo->bitrate);
|
|
GET_FROM_TUPLE (specific, uint32, 3, &ainfo->max_bitrate);
|
|
GET_FROM_TUPLE (specific, uint32, 4, &ainfo->depth);
|
|
|
|
str = _maybe_get_string_from_tuple (specific, 5);
|
|
|
|
if (str)
|
|
ainfo->language = g_strdup (str);
|
|
|
|
GET_FROM_TUPLE (specific, uint64, 6, &ainfo->channel_mask);
|
|
|
|
g_variant_unref (specific);
|
|
}
|
|
|
|
static void
|
|
_parse_video_stream_info (GstDiscovererVideoInfo * vinfo, GVariant * specific)
|
|
{
|
|
GET_FROM_TUPLE (specific, uint32, 0, &vinfo->width);
|
|
GET_FROM_TUPLE (specific, uint32, 1, &vinfo->height);
|
|
GET_FROM_TUPLE (specific, uint32, 2, &vinfo->depth);
|
|
GET_FROM_TUPLE (specific, uint32, 3, &vinfo->framerate_num);
|
|
GET_FROM_TUPLE (specific, uint32, 4, &vinfo->framerate_denom);
|
|
GET_FROM_TUPLE (specific, uint32, 5, &vinfo->par_num);
|
|
GET_FROM_TUPLE (specific, uint32, 6, &vinfo->par_denom);
|
|
GET_FROM_TUPLE (specific, boolean, 7, &vinfo->interlaced);
|
|
GET_FROM_TUPLE (specific, uint32, 8, &vinfo->bitrate);
|
|
GET_FROM_TUPLE (specific, uint32, 9, &vinfo->max_bitrate);
|
|
GET_FROM_TUPLE (specific, boolean, 10, &vinfo->is_image);
|
|
|
|
g_variant_unref (specific);
|
|
}
|
|
|
|
static void
|
|
_parse_subtitle_stream_info (GstDiscovererSubtitleInfo * sinfo,
|
|
GVariant * specific)
|
|
{
|
|
GVariant *maybe;
|
|
|
|
maybe = g_variant_get_maybe (specific);
|
|
if (maybe) {
|
|
sinfo->language = g_strdup (g_variant_get_string (maybe, NULL));
|
|
g_variant_unref (maybe);
|
|
}
|
|
|
|
g_variant_unref (specific);
|
|
}
|
|
|
|
static GstDiscovererStreamInfo *
|
|
_parse_discovery (GVariant * variant, GstDiscovererInfo * info)
|
|
{
|
|
gchar type;
|
|
GVariant *common = g_variant_get_child_value (variant, 1);
|
|
GVariant *specific = NULL;
|
|
GstDiscovererStreamInfo *sinfo = NULL;
|
|
|
|
if (g_variant_n_children (variant) > 2)
|
|
specific = g_variant_get_child_value (variant, 2);
|
|
|
|
GET_FROM_TUPLE (variant, byte, 0, &type);
|
|
switch (type) {
|
|
case 'c':
|
|
sinfo = g_object_new (GST_TYPE_DISCOVERER_CONTAINER_INFO, NULL);
|
|
break;
|
|
case 'a':
|
|
sinfo = g_object_new (GST_TYPE_DISCOVERER_AUDIO_INFO, NULL);
|
|
_parse_audio_stream_info (GST_DISCOVERER_AUDIO_INFO (sinfo),
|
|
g_variant_get_child_value (specific, 0));
|
|
break;
|
|
case 'v':
|
|
sinfo = g_object_new (GST_TYPE_DISCOVERER_VIDEO_INFO, NULL);
|
|
_parse_video_stream_info (GST_DISCOVERER_VIDEO_INFO (sinfo),
|
|
g_variant_get_child_value (specific, 0));
|
|
break;
|
|
case 's':
|
|
sinfo = g_object_new (GST_TYPE_DISCOVERER_SUBTITLE_INFO, NULL);
|
|
_parse_subtitle_stream_info (GST_DISCOVERER_SUBTITLE_INFO (sinfo),
|
|
g_variant_get_child_value (specific, 0));
|
|
break;
|
|
case 'n':
|
|
sinfo = g_object_new (GST_TYPE_DISCOVERER_STREAM_INFO, NULL);
|
|
break;
|
|
default:
|
|
GST_WARNING ("Unexpected discoverer info type %d", type);
|
|
goto out;
|
|
}
|
|
|
|
_parse_common_stream_info (sinfo, g_variant_get_child_value (common, 0),
|
|
info);
|
|
|
|
if (!GST_IS_DISCOVERER_CONTAINER_INFO (sinfo)) {
|
|
info->stream_list = g_list_append (info->stream_list, sinfo);
|
|
}
|
|
|
|
if (!info->stream_info) {
|
|
info->stream_info = sinfo;
|
|
}
|
|
|
|
if (GST_IS_DISCOVERER_CONTAINER_INFO (sinfo)) {
|
|
GVariantIter iter;
|
|
GVariant *child;
|
|
|
|
GstDiscovererContainerInfo *cinfo = GST_DISCOVERER_CONTAINER_INFO (sinfo);
|
|
g_variant_iter_init (&iter, specific);
|
|
cinfo->tags = sinfo->tags;
|
|
while ((child = g_variant_iter_next_value (&iter))) {
|
|
GstDiscovererStreamInfo *child_info;
|
|
child_info = _parse_discovery (g_variant_get_variant (child), info);
|
|
if (child_info != NULL) {
|
|
cinfo->streams =
|
|
g_list_append (cinfo->streams,
|
|
gst_discoverer_stream_info_ref (child_info));
|
|
}
|
|
g_variant_unref (child);
|
|
}
|
|
}
|
|
|
|
out:
|
|
|
|
g_variant_unref (common);
|
|
if (specific)
|
|
g_variant_unref (specific);
|
|
g_variant_unref (variant);
|
|
return sinfo;
|
|
}
|
|
|
|
/**
|
|
* gst_discoverer_start:
|
|
* @discoverer: A #GstDiscoverer
|
|
*
|
|
* Allow asynchronous discovering of URIs to take place.
|
|
* A #GMainLoop must be available for #GstDiscoverer to properly work in
|
|
* asynchronous mode.
|
|
*/
|
|
void
|
|
gst_discoverer_start (GstDiscoverer * discoverer)
|
|
{
|
|
GSource *source;
|
|
GMainContext *ctx = NULL;
|
|
|
|
g_return_if_fail (GST_IS_DISCOVERER (discoverer));
|
|
|
|
GST_DEBUG_OBJECT (discoverer, "Starting...");
|
|
|
|
if (discoverer->priv->async) {
|
|
GST_DEBUG_OBJECT (discoverer, "We were already started");
|
|
return;
|
|
}
|
|
|
|
discoverer->priv->async = TRUE;
|
|
discoverer->priv->running = TRUE;
|
|
|
|
ctx = g_main_context_get_thread_default ();
|
|
|
|
/* Connect to bus signals */
|
|
if (ctx == NULL)
|
|
ctx = g_main_context_default ();
|
|
|
|
source = gst_bus_create_watch (discoverer->priv->bus);
|
|
g_source_set_callback (source, (GSourceFunc) gst_bus_async_signal_func,
|
|
NULL, NULL);
|
|
g_source_attach (source, ctx);
|
|
discoverer->priv->bus_source = source;
|
|
discoverer->priv->ctx = g_main_context_ref (ctx);
|
|
|
|
start_discovering (discoverer);
|
|
GST_DEBUG_OBJECT (discoverer, "Started");
|
|
}
|
|
|
|
/**
|
|
* gst_discoverer_stop:
|
|
* @discoverer: A #GstDiscoverer
|
|
*
|
|
* Stop the discovery of any pending URIs and clears the list of
|
|
* pending URIS (if any).
|
|
*/
|
|
void
|
|
gst_discoverer_stop (GstDiscoverer * discoverer)
|
|
{
|
|
g_return_if_fail (GST_IS_DISCOVERER (discoverer));
|
|
|
|
GST_DEBUG_OBJECT (discoverer, "Stopping...");
|
|
|
|
if (!discoverer->priv->async) {
|
|
GST_DEBUG_OBJECT (discoverer,
|
|
"We were already stopped, or running synchronously");
|
|
return;
|
|
}
|
|
|
|
DISCO_LOCK (discoverer);
|
|
if (discoverer->priv->processing) {
|
|
/* We prevent any further processing by setting the bus to
|
|
* flushing and setting the pipeline to READY.
|
|
* _reset() will take care of the rest of the cleanup */
|
|
if (discoverer->priv->bus)
|
|
gst_bus_set_flushing (discoverer->priv->bus, TRUE);
|
|
if (discoverer->priv->pipeline)
|
|
gst_element_set_state ((GstElement *) discoverer->priv->pipeline,
|
|
GST_STATE_READY);
|
|
}
|
|
discoverer->priv->running = FALSE;
|
|
DISCO_UNLOCK (discoverer);
|
|
|
|
/* Remove timeout handler */
|
|
if (discoverer->priv->timeout_source) {
|
|
g_source_destroy (discoverer->priv->timeout_source);
|
|
g_source_unref (discoverer->priv->timeout_source);
|
|
discoverer->priv->timeout_source = NULL;
|
|
}
|
|
/* Remove signal watch */
|
|
if (discoverer->priv->bus_source) {
|
|
g_source_destroy (discoverer->priv->bus_source);
|
|
g_source_unref (discoverer->priv->bus_source);
|
|
discoverer->priv->bus_source = NULL;
|
|
}
|
|
/* Unref main context */
|
|
if (discoverer->priv->ctx) {
|
|
g_main_context_unref (discoverer->priv->ctx);
|
|
discoverer->priv->ctx = NULL;
|
|
}
|
|
discoverer_reset (discoverer);
|
|
|
|
discoverer->priv->async = FALSE;
|
|
|
|
GST_DEBUG_OBJECT (discoverer, "Stopped");
|
|
}
|
|
|
|
/**
|
|
* gst_discoverer_discover_uri_async:
|
|
* @discoverer: A #GstDiscoverer
|
|
* @uri: the URI to add.
|
|
*
|
|
* Appends the given @uri to the list of URIs to discoverer. The actual
|
|
* discovery of the @uri will only take place if gst_discoverer_start() has
|
|
* been called.
|
|
*
|
|
* A copy of @uri will be made internally, so the caller can safely g_free()
|
|
* afterwards.
|
|
*
|
|
* Returns: %TRUE if the @uri was successfully appended to the list of pending
|
|
* uris, else %FALSE
|
|
*/
|
|
gboolean
|
|
gst_discoverer_discover_uri_async (GstDiscoverer * discoverer,
|
|
const gchar * uri)
|
|
{
|
|
gboolean can_run;
|
|
|
|
g_return_val_if_fail (GST_IS_DISCOVERER (discoverer), FALSE);
|
|
|
|
GST_DEBUG_OBJECT (discoverer, "uri : %s", uri);
|
|
|
|
DISCO_LOCK (discoverer);
|
|
can_run = (discoverer->priv->pending_uris == NULL);
|
|
discoverer->priv->pending_uris =
|
|
g_list_append (discoverer->priv->pending_uris, g_strdup (uri));
|
|
DISCO_UNLOCK (discoverer);
|
|
|
|
if (can_run)
|
|
start_discovering (discoverer);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/* Synchronous mode */
|
|
/**
|
|
* gst_discoverer_discover_uri:
|
|
* @discoverer: A #GstDiscoverer
|
|
* @uri: The URI to run on.
|
|
* @err: If an error occurred, this field will be filled in.
|
|
*
|
|
* Synchronously discovers the given @uri.
|
|
*
|
|
* A copy of @uri will be made internally, so the caller can safely g_free()
|
|
* afterwards.
|
|
*
|
|
* Returns: (transfer full): the result of the scanning. Can be %NULL if an
|
|
* error occurred.
|
|
*/
|
|
GstDiscovererInfo *
|
|
gst_discoverer_discover_uri (GstDiscoverer * discoverer, const gchar * uri,
|
|
GError ** err)
|
|
{
|
|
GstDiscovererResult res = 0;
|
|
GstDiscovererInfo *info;
|
|
|
|
g_return_val_if_fail (GST_IS_DISCOVERER (discoverer), NULL);
|
|
g_return_val_if_fail (uri, NULL);
|
|
|
|
GST_DEBUG_OBJECT (discoverer, "uri:%s", uri);
|
|
|
|
DISCO_LOCK (discoverer);
|
|
if (G_UNLIKELY (discoverer->priv->current_info)) {
|
|
DISCO_UNLOCK (discoverer);
|
|
GST_WARNING_OBJECT (discoverer, "Already handling a uri");
|
|
if (err)
|
|
*err = g_error_new (GST_CORE_ERROR, GST_CORE_ERROR_FAILED,
|
|
"Already handling a uri");
|
|
return NULL;
|
|
}
|
|
|
|
discoverer->priv->pending_uris =
|
|
g_list_append (discoverer->priv->pending_uris, g_strdup (uri));
|
|
DISCO_UNLOCK (discoverer);
|
|
|
|
res = start_discovering (discoverer);
|
|
discoverer_collect (discoverer);
|
|
|
|
/* Get results */
|
|
if (err) {
|
|
if (discoverer->priv->current_error)
|
|
*err = g_error_copy (discoverer->priv->current_error);
|
|
else
|
|
*err = NULL;
|
|
}
|
|
if (res != GST_DISCOVERER_OK) {
|
|
GST_DEBUG ("Setting result to %d (was %d)", res,
|
|
discoverer->priv->current_info->result);
|
|
discoverer->priv->current_info->result = res;
|
|
}
|
|
info = _ensure_info_tags (discoverer);
|
|
|
|
discoverer_cleanup (discoverer);
|
|
|
|
return info;
|
|
}
|
|
|
|
/**
|
|
* gst_discoverer_new:
|
|
* @timeout: timeout per file, in nanoseconds. Allowed are values between
|
|
* one second (#GST_SECOND) and one hour (3600 * #GST_SECOND)
|
|
* @err: a pointer to a #GError. can be %NULL
|
|
*
|
|
* Creates a new #GstDiscoverer with the provided timeout.
|
|
*
|
|
* Returns: (transfer full): The new #GstDiscoverer.
|
|
* If an error occurred when creating the discoverer, @err will be set
|
|
* accordingly and %NULL will be returned. If @err is set, the caller must
|
|
* free it when no longer needed using g_error_free().
|
|
*/
|
|
GstDiscoverer *
|
|
gst_discoverer_new (GstClockTime timeout, GError ** err)
|
|
{
|
|
GstDiscoverer *res;
|
|
|
|
g_return_val_if_fail (GST_CLOCK_TIME_IS_VALID (timeout), NULL);
|
|
|
|
res = g_object_new (GST_TYPE_DISCOVERER, "timeout", timeout, NULL);
|
|
if (res->priv->uridecodebin == NULL) {
|
|
if (err)
|
|
*err = g_error_new (GST_CORE_ERROR, GST_CORE_ERROR_MISSING_PLUGIN,
|
|
"Couldn't create 'uridecodebin' element");
|
|
gst_object_unref (res);
|
|
res = NULL;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
/**
|
|
* gst_discoverer_info_to_variant:
|
|
* @info: A #GstDiscovererInfo
|
|
* @flags: A combination of #GstDiscovererSerializeFlags to specify
|
|
* what needs to be serialized.
|
|
*
|
|
* Serializes @info to a #GVariant that can be parsed again
|
|
* through gst_discoverer_info_from_variant().
|
|
*
|
|
* Note that any #GstToc (s) that might have been discovered will not be serialized
|
|
* for now.
|
|
*
|
|
* Returns: (transfer full): A newly-allocated #GVariant representing @info.
|
|
*
|
|
* Since: 1.6
|
|
*/
|
|
GVariant *
|
|
gst_discoverer_info_to_variant (GstDiscovererInfo * info,
|
|
GstDiscovererSerializeFlags flags)
|
|
{
|
|
/* FIXME: implement TOC support */
|
|
GVariant *stream_variant;
|
|
GVariant *variant, *info_variant;
|
|
GstDiscovererStreamInfo *sinfo;
|
|
GVariant *wrapper;
|
|
|
|
g_return_val_if_fail (GST_IS_DISCOVERER_INFO (info), NULL);
|
|
g_return_val_if_fail (gst_discoverer_info_get_result (info) ==
|
|
GST_DISCOVERER_OK
|
|
|| gst_discoverer_info_get_result (info) ==
|
|
GST_DISCOVERER_MISSING_PLUGINS, NULL);
|
|
|
|
sinfo = gst_discoverer_info_get_stream_info (info);
|
|
stream_variant = gst_discoverer_info_to_variant_recurse (sinfo, flags);
|
|
info_variant = _serialize_info (info, flags);
|
|
|
|
variant = g_variant_new ("(vv)", info_variant, stream_variant);
|
|
|
|
/* Returning a wrapper implies some small overhead, but simplifies
|
|
* deserializing from bytes */
|
|
wrapper = g_variant_new_variant (variant);
|
|
|
|
gst_discoverer_stream_info_unref (sinfo);
|
|
return wrapper;
|
|
}
|
|
|
|
/**
|
|
* gst_discoverer_info_from_variant:
|
|
* @variant: A #GVariant to deserialize into a #GstDiscovererInfo.
|
|
*
|
|
* Parses a #GVariant as produced by gst_discoverer_info_to_variant()
|
|
* back to a #GstDiscovererInfo.
|
|
*
|
|
* Returns: (transfer full): A newly-allocated #GstDiscovererInfo.
|
|
*
|
|
* Since: 1.6
|
|
*/
|
|
GstDiscovererInfo *
|
|
gst_discoverer_info_from_variant (GVariant * variant)
|
|
{
|
|
GstDiscovererInfo *info = g_object_new (GST_TYPE_DISCOVERER_INFO, NULL);
|
|
GVariant *info_variant = g_variant_get_variant (variant);
|
|
GVariant *info_specific_variant;
|
|
GVariant *wrapped;
|
|
|
|
GET_FROM_TUPLE (info_variant, variant, 0, &info_specific_variant);
|
|
GET_FROM_TUPLE (info_variant, variant, 1, &wrapped);
|
|
|
|
_parse_info (info, info_specific_variant);
|
|
_parse_discovery (wrapped, info);
|
|
g_variant_unref (info_specific_variant);
|
|
g_variant_unref (info_variant);
|
|
|
|
return info;
|
|
}
|