mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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4e381b8901
Update connection-speed at runtime in playbin, uridecodebin and decodebin also do the same thing in urisourcebin. With contributions from Philippe Normand <philn@igalia.com> (build fixes and rebase on mono-repo). Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4713>
3003 lines
91 KiB
C
3003 lines
91 KiB
C
/* GStreamer
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* Copyright (C) <2007> Wim Taymans <wim.taymans@gmail.com>
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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:element-uridecodebin
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* @title: uridecodebin
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*
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* Decodes data from a URI into raw media. It selects a source element that can
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* handle the given #GstURIDecodeBin:uri scheme and connects it to a decodebin.
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*/
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/* FIXME 0.11: suppress warnings for deprecated API such as GValueArray
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* with newer GLib versions (>= 2.31.0) */
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#define GLIB_DISABLE_DEPRECATION_WARNINGS
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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 <string.h>
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#include <gst/gst.h>
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#include <glib/gi18n-lib.h>
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#include <gst/pbutils/missing-plugins.h>
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#include "gstplay-enum.h"
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#include "gstrawcaps.h"
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#include "gstplaybackelements.h"
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#include "gstplaybackutils.h"
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#define GST_TYPE_URI_DECODE_BIN \
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(gst_uri_decode_bin_get_type())
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#define GST_URI_DECODE_BIN(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_URI_DECODE_BIN,GstURIDecodeBin))
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#define GST_URI_DECODE_BIN_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_URI_DECODE_BIN,GstURIDecodeBinClass))
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#define GST_IS_URI_DECODE_BIN(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_URI_DECODE_BIN))
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#define GST_IS_URI_DECODE_BIN_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_URI_DECODE_BIN))
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#define GST_URI_DECODE_BIN_CAST(obj) ((GstURIDecodeBin *) (obj))
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typedef struct _GstURIDecodeBin GstURIDecodeBin;
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typedef struct _GstURIDecodeBinClass GstURIDecodeBinClass;
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#define GST_URI_DECODE_BIN_LOCK(dec) (g_mutex_lock(&((GstURIDecodeBin*)(dec))->lock))
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#define GST_URI_DECODE_BIN_UNLOCK(dec) (g_mutex_unlock(&((GstURIDecodeBin*)(dec))->lock))
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typedef struct _GstURIDecodeBinStream
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{
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gulong probe_id;
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guint bitrate;
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} GstURIDecodeBinStream;
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/**
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* GstURIDecodeBin
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*
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* uridecodebin element struct
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*/
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struct _GstURIDecodeBin
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{
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GstBin parent_instance;
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GMutex lock; /* lock for constructing */
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GMutex factories_lock;
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guint32 factories_cookie;
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GList *factories; /* factories we can use for selecting elements */
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gchar *uri;
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guint64 connection_speed;
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GstCaps *caps;
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gchar *encoding;
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gboolean is_stream;
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gboolean is_adaptive;
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gboolean need_queue;
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guint64 buffer_duration; /* When buffering, buffer duration (ns) */
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guint buffer_size; /* When buffering, buffer size (bytes) */
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gboolean download;
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gboolean use_buffering;
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gboolean force_sw_decoders;
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GstElement *source;
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GstElement *queue;
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GstElement *typefind;
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guint have_type_id; /* have-type signal id from typefind */
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/* without holding ref */
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GSList *decodebins;
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/* Holding strong reference to decodebin */
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GSList *pending_decodebins;
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GHashTable *streams;
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guint numpads;
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/* for dynamic sources */
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guint src_np_sig_id; /* new-pad signal id */
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guint src_nmp_sig_id; /* no-more-pads signal id */
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gint pending;
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GList *missing_plugin_errors;
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gboolean async_pending; /* async-start has been emitted */
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gboolean expose_allstreams; /* Whether to expose unknown type streams or not */
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guint64 ring_buffer_max_size; /* 0 means disabled */
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gboolean post_stream_topology;
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};
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struct _GstURIDecodeBinClass
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{
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GstBinClass parent_class;
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/* signal fired when we found a pad that we cannot decode */
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void (*unknown_type) (GstElement * element, GstPad * pad, GstCaps * caps);
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/* signal fired to know if we continue trying to decode the given caps */
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gboolean (*autoplug_continue) (GstElement * element, GstPad * pad,
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GstCaps * caps);
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/* signal fired to get a list of factories to try to autoplug */
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GValueArray *(*autoplug_factories) (GstElement * element, GstPad * pad,
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GstCaps * caps);
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/* signal fired to sort the factories */
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GValueArray *(*autoplug_sort) (GstElement * element, GstPad * pad,
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GstCaps * caps, GValueArray * factories);
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/* signal fired to select from the proposed list of factories */
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GstAutoplugSelectResult (*autoplug_select) (GstElement * element,
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GstPad * pad, GstCaps * caps, GstElementFactory * factory);
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/* signal fired when a autoplugged element that is not linked downstream
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* or exposed wants to query something */
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gboolean (*autoplug_query) (GstElement * element, GstPad * pad,
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GstQuery * query);
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/* emitted when all data is decoded */
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void (*drained) (GstElement * element);
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};
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static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src_%u",
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GST_PAD_SRC,
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GST_PAD_SOMETIMES,
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GST_STATIC_CAPS_ANY);
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static GstStaticCaps default_raw_caps = GST_STATIC_CAPS (DEFAULT_RAW_CAPS);
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GST_DEBUG_CATEGORY_STATIC (gst_uri_decode_bin_debug);
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#define GST_CAT_DEFAULT gst_uri_decode_bin_debug
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/* signals */
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enum
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{
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SIGNAL_UNKNOWN_TYPE,
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SIGNAL_AUTOPLUG_CONTINUE,
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SIGNAL_AUTOPLUG_FACTORIES,
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SIGNAL_AUTOPLUG_SELECT,
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SIGNAL_AUTOPLUG_SORT,
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SIGNAL_AUTOPLUG_QUERY,
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SIGNAL_DRAINED,
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SIGNAL_SOURCE_SETUP,
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LAST_SIGNAL
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};
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/* properties */
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#define DEFAULT_PROP_URI NULL
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#define DEFAULT_PROP_SOURCE NULL
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#define DEFAULT_CONNECTION_SPEED 0
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#define DEFAULT_CAPS (gst_static_caps_get (&default_raw_caps))
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#define DEFAULT_SUBTITLE_ENCODING NULL
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#define DEFAULT_BUFFER_DURATION -1
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#define DEFAULT_BUFFER_SIZE -1
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#define DEFAULT_DOWNLOAD FALSE
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#define DEFAULT_USE_BUFFERING FALSE
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#define DEFAULT_FORCE_SW_DECODERS FALSE
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#define DEFAULT_EXPOSE_ALL_STREAMS TRUE
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#define DEFAULT_RING_BUFFER_MAX_SIZE 0
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#define DEFAULT_POST_STREAM_TOPOLOGY FALSE
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enum
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{
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PROP_0,
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PROP_URI,
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PROP_SOURCE,
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PROP_CONNECTION_SPEED,
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PROP_CAPS,
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PROP_SUBTITLE_ENCODING,
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PROP_BUFFER_SIZE,
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PROP_BUFFER_DURATION,
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PROP_DOWNLOAD,
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PROP_USE_BUFFERING,
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PROP_FORCE_SW_DECODERS,
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PROP_EXPOSE_ALL_STREAMS,
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PROP_RING_BUFFER_MAX_SIZE,
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PROP_POST_STREAM_TOPOLOGY
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};
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static guint gst_uri_decode_bin_signals[LAST_SIGNAL] = { 0 };
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GType gst_uri_decode_bin_get_type (void);
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#define gst_uri_decode_bin_parent_class parent_class
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G_DEFINE_TYPE (GstURIDecodeBin, gst_uri_decode_bin, GST_TYPE_BIN);
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#define _do_init \
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GST_DEBUG_CATEGORY_INIT (gst_uri_decode_bin_debug, "uridecodebin", 0, "URI decoder element"); \
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playback_element_init (plugin);
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GST_ELEMENT_REGISTER_DEFINE_WITH_CODE (uridecodebin, "uridecodebin",
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GST_RANK_NONE, GST_TYPE_URI_DECODE_BIN, _do_init);
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static void remove_decoders (GstURIDecodeBin * bin, gboolean force);
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static void gst_uri_decode_bin_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_uri_decode_bin_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_uri_decode_bin_finalize (GObject * obj);
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static void handle_message (GstBin * bin, GstMessage * msg);
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static gboolean gst_uri_decode_bin_query (GstElement * element,
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GstQuery * query);
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static GstStateChangeReturn gst_uri_decode_bin_change_state (GstElement *
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element, GstStateChange transition);
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static gboolean
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_gst_boolean_accumulator (GSignalInvocationHint * ihint,
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GValue * return_accu, const GValue * handler_return, gpointer dummy)
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{
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gboolean myboolean;
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myboolean = g_value_get_boolean (handler_return);
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g_value_set_boolean (return_accu, myboolean);
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/* stop emission if FALSE */
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return myboolean;
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}
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static gboolean
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_gst_boolean_or_accumulator (GSignalInvocationHint * ihint,
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GValue * return_accu, const GValue * handler_return, gpointer dummy)
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{
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gboolean myboolean;
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gboolean retboolean;
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myboolean = g_value_get_boolean (handler_return);
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retboolean = g_value_get_boolean (return_accu);
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g_value_set_boolean (return_accu, myboolean || retboolean);
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return TRUE;
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}
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static gboolean
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_gst_array_accumulator (GSignalInvocationHint * ihint,
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GValue * return_accu, const GValue * handler_return, gpointer dummy)
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{
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gpointer array;
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array = g_value_get_boxed (handler_return);
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g_value_set_boxed (return_accu, array);
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return FALSE;
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}
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static gboolean
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_gst_select_accumulator (GSignalInvocationHint * ihint,
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GValue * return_accu, const GValue * handler_return, gpointer dummy)
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{
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GstAutoplugSelectResult res;
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res = g_value_get_enum (handler_return);
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g_value_set_enum (return_accu, res);
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/* Call the next handler in the chain (if any) when the current callback
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* returns TRY. This makes it possible to register separate autoplug-select
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* handlers that implement different TRY/EXPOSE/SKIP strategies.
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*/
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if (res == GST_AUTOPLUG_SELECT_TRY)
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return TRUE;
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return FALSE;
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}
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static gboolean
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_gst_array_hasvalue_accumulator (GSignalInvocationHint * ihint,
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GValue * return_accu, const GValue * handler_return, gpointer dummy)
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{
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gpointer array;
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array = g_value_get_boxed (handler_return);
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g_value_set_boxed (return_accu, array);
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if (array != NULL)
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return FALSE;
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return TRUE;
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}
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static gboolean
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gst_uri_decode_bin_autoplug_continue (GstElement * element, GstPad * pad,
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GstCaps * caps)
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{
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/* by default we always continue */
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return TRUE;
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}
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/* Must be called with factories lock! */
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static void
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gst_uri_decode_bin_update_factories_list (GstURIDecodeBin * dec)
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{
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guint32 cookie;
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GList *factories, *tmp;
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cookie = gst_registry_get_feature_list_cookie (gst_registry_get ());
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if (!dec->factories || dec->factories_cookie != cookie) {
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if (dec->factories)
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gst_plugin_feature_list_free (dec->factories);
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factories =
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gst_element_factory_list_get_elements
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(GST_ELEMENT_FACTORY_TYPE_DECODABLE, GST_RANK_MARGINAL);
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if (dec->force_sw_decoders) {
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/* filter out Hardware class elements */
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dec->factories = NULL;
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for (tmp = factories; tmp; tmp = g_list_next (tmp)) {
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GstElementFactory *factory = GST_ELEMENT_FACTORY_CAST (tmp->data);
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if (!gst_element_factory_list_is_type (factory,
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GST_ELEMENT_FACTORY_TYPE_HARDWARE)) {
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dec->factories = g_list_prepend (dec->factories, factory);
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} else {
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gst_object_unref (factory);
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}
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}
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g_list_free (factories);
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} else {
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dec->factories = factories;
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}
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dec->factories =
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g_list_sort (dec->factories, gst_playback_utils_compare_factories_func);
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dec->factories_cookie = cookie;
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}
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}
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static GValueArray *
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gst_uri_decode_bin_autoplug_factories (GstElement * element, GstPad * pad,
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GstCaps * caps)
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{
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GList *list, *tmp;
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GValueArray *result;
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GstURIDecodeBin *dec = GST_URI_DECODE_BIN_CAST (element);
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GST_DEBUG_OBJECT (element, "finding factories");
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/* return all compatible factories for caps */
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g_mutex_lock (&dec->factories_lock);
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gst_uri_decode_bin_update_factories_list (dec);
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list =
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gst_element_factory_list_filter (dec->factories, caps, GST_PAD_SINK,
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gst_caps_is_fixed (caps));
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g_mutex_unlock (&dec->factories_lock);
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result = g_value_array_new (g_list_length (list));
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for (tmp = list; tmp; tmp = tmp->next) {
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GstElementFactory *factory = GST_ELEMENT_FACTORY_CAST (tmp->data);
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GValue val = { 0, };
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g_value_init (&val, G_TYPE_OBJECT);
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g_value_set_object (&val, factory);
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g_value_array_append (result, &val);
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g_value_unset (&val);
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}
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gst_plugin_feature_list_free (list);
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GST_DEBUG_OBJECT (element, "autoplug-factories returns %p", result);
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return result;
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}
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static GValueArray *
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gst_uri_decode_bin_autoplug_sort (GstElement * element, GstPad * pad,
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GstCaps * caps, GValueArray * factories)
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{
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return NULL;
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}
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static GstAutoplugSelectResult
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gst_uri_decode_bin_autoplug_select (GstElement * element, GstPad * pad,
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GstCaps * caps, GstElementFactory * factory)
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{
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GST_DEBUG_OBJECT (element, "default autoplug-select returns TRY");
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/* Try factory. */
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return GST_AUTOPLUG_SELECT_TRY;
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}
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static gboolean
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gst_uri_decode_bin_autoplug_query (GstElement * element, GstPad * pad,
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GstQuery * query)
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{
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/* No query handled here */
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return FALSE;
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}
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static void
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gst_uri_decode_bin_class_init (GstURIDecodeBinClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstBinClass *gstbin_class;
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gobject_class = G_OBJECT_CLASS (klass);
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gstelement_class = GST_ELEMENT_CLASS (klass);
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gstbin_class = GST_BIN_CLASS (klass);
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gobject_class->set_property = gst_uri_decode_bin_set_property;
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gobject_class->get_property = gst_uri_decode_bin_get_property;
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gobject_class->finalize = gst_uri_decode_bin_finalize;
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g_object_class_install_property (gobject_class, PROP_URI,
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g_param_spec_string ("uri", "URI", "URI to decode",
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DEFAULT_PROP_URI, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_SOURCE,
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g_param_spec_object ("source", "Source", "Source object used",
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GST_TYPE_ELEMENT, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_CONNECTION_SPEED,
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g_param_spec_uint64 ("connection-speed", "Connection Speed",
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"Network connection speed in kbps (0 = unknown)",
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0, G_MAXUINT64 / 1000, DEFAULT_CONNECTION_SPEED,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_CAPS,
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g_param_spec_boxed ("caps", "Caps",
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"The caps on which to stop decoding. (NULL = default)",
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GST_TYPE_CAPS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_SUBTITLE_ENCODING,
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g_param_spec_string ("subtitle-encoding", "subtitle encoding",
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"Encoding to assume if input subtitles are not in UTF-8 encoding. "
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"If not set, the GST_SUBTITLE_ENCODING environment variable will "
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"be checked for an encoding to use. If that is not set either, "
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"ISO-8859-15 will be assumed.", NULL,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_BUFFER_SIZE,
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g_param_spec_int ("buffer-size", "Buffer size (bytes)",
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"Buffer size when buffering streams (-1 default value)",
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-1, G_MAXINT, DEFAULT_BUFFER_SIZE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_BUFFER_DURATION,
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g_param_spec_int64 ("buffer-duration", "Buffer duration (ns)",
|
|
"Buffer duration when buffering streams (-1 default value)",
|
|
-1, G_MAXINT64, DEFAULT_BUFFER_DURATION,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* GstURIDecodeBin:download:
|
|
*
|
|
* For certain media type, enable download buffering.
|
|
*/
|
|
g_object_class_install_property (gobject_class, PROP_DOWNLOAD,
|
|
g_param_spec_boolean ("download", "Download",
|
|
"Attempt download buffering when buffering network streams",
|
|
DEFAULT_DOWNLOAD, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
/**
|
|
* GstURIDecodeBin:use-buffering:
|
|
*
|
|
* Emit BUFFERING messages based on low-/high-percent thresholds of the
|
|
* demuxed or parsed data.
|
|
* When download buffering is activated and used for the current media
|
|
* type, this property does nothing. Otherwise perform buffering on the
|
|
* demuxed or parsed media.
|
|
*/
|
|
g_object_class_install_property (gobject_class, PROP_USE_BUFFERING,
|
|
g_param_spec_boolean ("use-buffering", "Use Buffering",
|
|
"Perform buffering on demuxed/parsed media",
|
|
DEFAULT_USE_BUFFERING, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* GstURIDecodeBin:force-sw-decoders:
|
|
*
|
|
* While auto-plugging, if set to %TRUE, those decoders within
|
|
* "Hardware" klass will be ignored. Otherwise they will be tried.
|
|
*
|
|
* Since: 1.18
|
|
*/
|
|
g_object_class_install_property (gobject_class, PROP_FORCE_SW_DECODERS,
|
|
g_param_spec_boolean ("force-sw-decoders", "Software Docoders Only",
|
|
"Use only sofware decoders to process streams",
|
|
DEFAULT_FORCE_SW_DECODERS,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* GstURIDecodeBin:expose-all-streams:
|
|
*
|
|
* Expose streams of unknown type.
|
|
*
|
|
* If set to %FALSE, then only the streams that can be decoded to the final
|
|
* caps (see 'caps' property) will have a pad exposed. Streams that do not
|
|
* match those caps but could have been decoded will not have decoder plugged
|
|
* in internally and will not have a pad exposed.
|
|
*/
|
|
g_object_class_install_property (gobject_class, PROP_EXPOSE_ALL_STREAMS,
|
|
g_param_spec_boolean ("expose-all-streams", "Expose All Streams",
|
|
"Expose all streams, including those of unknown type or that don't match the 'caps' property",
|
|
DEFAULT_EXPOSE_ALL_STREAMS,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* GstURIDecodeBin:ring-buffer-max-size:
|
|
*
|
|
* The maximum size of the ring buffer in kilobytes. If set to 0, the ring
|
|
* buffer is disabled. Default is 0.
|
|
*/
|
|
g_object_class_install_property (gobject_class, PROP_RING_BUFFER_MAX_SIZE,
|
|
g_param_spec_uint64 ("ring-buffer-max-size",
|
|
"Max. ring buffer size (bytes)",
|
|
"Max. amount of data in the ring buffer (bytes, 0 = ring buffer disabled)",
|
|
0, G_MAXUINT, DEFAULT_RING_BUFFER_MAX_SIZE,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* GstURIDecodeBin:post-stream-topology
|
|
*
|
|
* Post stream-topology messages on the bus every time the topology changes.
|
|
*
|
|
* Since: 1.22
|
|
*/
|
|
g_object_class_install_property (gobject_class, PROP_POST_STREAM_TOPOLOGY,
|
|
g_param_spec_boolean ("post-stream-topology", "Post Stream Topology",
|
|
"Post stream-topology messages",
|
|
DEFAULT_POST_STREAM_TOPOLOGY,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* GstURIDecodeBin::unknown-type:
|
|
* @bin: The uridecodebin.
|
|
* @pad: the new pad containing caps that cannot be resolved to a 'final'.
|
|
* stream type.
|
|
* @caps: the #GstCaps of the pad that cannot be resolved.
|
|
*
|
|
* This signal is emitted when a pad for which there is no further possible
|
|
* decoding is added to the uridecodebin.
|
|
*/
|
|
gst_uri_decode_bin_signals[SIGNAL_UNKNOWN_TYPE] =
|
|
g_signal_new ("unknown-type", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstURIDecodeBinClass, unknown_type),
|
|
NULL, NULL, NULL, G_TYPE_NONE, 2, GST_TYPE_PAD, GST_TYPE_CAPS);
|
|
|
|
/**
|
|
* GstURIDecodeBin::autoplug-continue:
|
|
* @bin: The uridecodebin.
|
|
* @pad: The #GstPad.
|
|
* @caps: The #GstCaps found.
|
|
*
|
|
* This signal is emitted whenever uridecodebin finds a new stream. It is
|
|
* emitted before looking for any elements that can handle that stream.
|
|
*
|
|
* > Invocation of signal handlers stops after the first signal handler
|
|
* > returns %FALSE. Signal handlers are invoked in the order they were
|
|
* > connected in.
|
|
*
|
|
* Returns: %TRUE if you wish uridecodebin to look for elements that can
|
|
* handle the given @caps. If %FALSE, those caps will be considered as
|
|
* final and the pad will be exposed as such (see 'pad-added' signal of
|
|
* #GstElement).
|
|
*/
|
|
gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_CONTINUE] =
|
|
g_signal_new ("autoplug-continue", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstURIDecodeBinClass,
|
|
autoplug_continue), _gst_boolean_accumulator, NULL,
|
|
NULL, G_TYPE_BOOLEAN, 2, GST_TYPE_PAD, GST_TYPE_CAPS);
|
|
|
|
/**
|
|
* GstURIDecodeBin::autoplug-factories:
|
|
* @bin: The uridecodebin.
|
|
* @pad: The #GstPad.
|
|
* @caps: The #GstCaps found.
|
|
*
|
|
* This function is emitted when an array of possible factories for @caps on
|
|
* @pad is needed. Uridecodebin will by default return an array with all
|
|
* compatible factories, sorted by rank.
|
|
*
|
|
* If this function returns NULL, @pad will be exposed as a final caps.
|
|
*
|
|
* If this function returns an empty array, the pad will be considered as
|
|
* having an unhandled type media type.
|
|
*
|
|
* > Only the signal handler that is connected first will ever by invoked.
|
|
* > Don't connect signal handlers with the #G_CONNECT_AFTER flag to this
|
|
* > signal, they will never be invoked!
|
|
*
|
|
* Returns: a #GValueArray* with a list of factories to try. The factories are
|
|
* by default tried in the returned order or based on the index returned by
|
|
* "autoplug-select".
|
|
*/
|
|
gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_FACTORIES] =
|
|
g_signal_new ("autoplug-factories", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstURIDecodeBinClass,
|
|
autoplug_factories), _gst_array_accumulator, NULL,
|
|
NULL, G_TYPE_VALUE_ARRAY, 2, GST_TYPE_PAD, GST_TYPE_CAPS);
|
|
|
|
/**
|
|
* GstURIDecodeBin::autoplug-sort:
|
|
* @bin: The uridecodebin.
|
|
* @pad: The #GstPad.
|
|
* @caps: The #GstCaps.
|
|
* @factories: A #GValueArray of possible #GstElementFactory to use.
|
|
*
|
|
* Once decodebin has found the possible #GstElementFactory objects to try
|
|
* for @caps on @pad, this signal is emitted. The purpose of the signal is for
|
|
* the application to perform additional sorting or filtering on the element
|
|
* factory array.
|
|
*
|
|
* The callee should copy and modify @factories or return %NULL if the
|
|
* order should not change.
|
|
*
|
|
* > Invocation of signal handlers stops after one signal handler has
|
|
* > returned something else than %NULL. Signal handlers are invoked in
|
|
* > the order they were connected in.
|
|
* > Don't connect signal handlers with the #G_CONNECT_AFTER flag to this
|
|
* > signal, they will never be invoked!
|
|
*
|
|
* Returns: A new sorted array of #GstElementFactory objects.
|
|
*/
|
|
gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_SORT] =
|
|
g_signal_new ("autoplug-sort", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstURIDecodeBinClass, autoplug_sort),
|
|
_gst_array_hasvalue_accumulator, NULL,
|
|
NULL, G_TYPE_VALUE_ARRAY, 3, GST_TYPE_PAD, GST_TYPE_CAPS,
|
|
G_TYPE_VALUE_ARRAY | G_SIGNAL_TYPE_STATIC_SCOPE);
|
|
|
|
/**
|
|
* GstURIDecodeBin::autoplug-select:
|
|
* @bin: The uridecodebin.
|
|
* @pad: The #GstPad.
|
|
* @caps: The #GstCaps.
|
|
* @factory: A #GstElementFactory to use.
|
|
*
|
|
* This signal is emitted once uridecodebin has found all the possible
|
|
* #GstElementFactory that can be used to handle the given @caps. For each of
|
|
* those factories, this signal is emitted.
|
|
*
|
|
* The signal handler should return a #GstAutoplugSelectResult enum
|
|
* value indicating what decodebin should do next.
|
|
*
|
|
* A value of #GstAutoplugSelectResult::try will try to autoplug an element from
|
|
* @factory.
|
|
*
|
|
* A value of #GstAutoplugSelectResult::expose will expose @pad without plugging
|
|
* any element to it.
|
|
*
|
|
* A value of #GstAutoplugSelectResult::skip will skip @factory and move to the
|
|
* next factory.
|
|
*
|
|
* > The signal handler will not be invoked if any of the previously
|
|
* > registered signal handlers (if any) return a value other than
|
|
* > GST_AUTOPLUG_SELECT_TRY. Which also means that if you return
|
|
* > GST_AUTOPLUG_SELECT_TRY from one signal handler, handlers that get
|
|
* > registered next (again, if any) can override that decision.
|
|
*
|
|
* Returns: a #GstAutoplugSelectResult that indicates the required
|
|
* operation. The default handler will always return
|
|
* #GstAutoplugSelectResult::try.
|
|
*/
|
|
gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_SELECT] =
|
|
g_signal_new ("autoplug-select", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstURIDecodeBinClass,
|
|
autoplug_select), _gst_select_accumulator, NULL,
|
|
NULL, GST_TYPE_AUTOPLUG_SELECT_RESULT, 3, GST_TYPE_PAD, GST_TYPE_CAPS,
|
|
GST_TYPE_ELEMENT_FACTORY);
|
|
|
|
/**
|
|
* GstDecodeBin::autoplug-query:
|
|
* @bin: The decodebin.
|
|
* @child: The child element doing the query
|
|
* @pad: The #GstPad.
|
|
* @query: The #GstQuery.
|
|
*
|
|
* This signal is emitted whenever an autoplugged element that is
|
|
* not linked downstream yet and not exposed does a query. It can
|
|
* be used to tell the element about the downstream supported caps
|
|
* for example.
|
|
*
|
|
* Returns: %TRUE if the query was handled, %FALSE otherwise.
|
|
*/
|
|
gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_QUERY] =
|
|
g_signal_new ("autoplug-query", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstURIDecodeBinClass, autoplug_query),
|
|
_gst_boolean_or_accumulator, NULL, NULL, G_TYPE_BOOLEAN, 3, GST_TYPE_PAD,
|
|
GST_TYPE_ELEMENT, GST_TYPE_QUERY | G_SIGNAL_TYPE_STATIC_SCOPE);
|
|
|
|
/**
|
|
* GstURIDecodeBin::drained:
|
|
*
|
|
* This signal is emitted when the data for the current uri is played.
|
|
*/
|
|
gst_uri_decode_bin_signals[SIGNAL_DRAINED] =
|
|
g_signal_new ("drained", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST,
|
|
G_STRUCT_OFFSET (GstURIDecodeBinClass, drained), NULL, NULL, NULL,
|
|
G_TYPE_NONE, 0, G_TYPE_NONE);
|
|
|
|
/**
|
|
* GstURIDecodeBin::source-setup:
|
|
* @bin: the uridecodebin.
|
|
* @source: source element
|
|
*
|
|
* This signal is emitted after the source element has been created, so
|
|
* it can be configured by setting additional properties (e.g. set a
|
|
* proxy server for an http source, or set the device and read speed for
|
|
* an audio cd source). This is functionally equivalent to connecting to
|
|
* the notify::source signal, but more convenient.
|
|
*/
|
|
gst_uri_decode_bin_signals[SIGNAL_SOURCE_SETUP] =
|
|
g_signal_new ("source-setup", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL, G_TYPE_NONE, 1, GST_TYPE_ELEMENT);
|
|
|
|
gst_element_class_add_static_pad_template (gstelement_class, &srctemplate);
|
|
gst_element_class_set_static_metadata (gstelement_class,
|
|
"URI Decoder", "Generic/Bin/Decoder",
|
|
"Autoplug and decode an URI to raw media",
|
|
"Wim Taymans <wim.taymans@gmail.com>");
|
|
|
|
gstelement_class->query = GST_DEBUG_FUNCPTR (gst_uri_decode_bin_query);
|
|
gstelement_class->change_state =
|
|
GST_DEBUG_FUNCPTR (gst_uri_decode_bin_change_state);
|
|
|
|
gstbin_class->handle_message = GST_DEBUG_FUNCPTR (handle_message);
|
|
|
|
klass->autoplug_continue =
|
|
GST_DEBUG_FUNCPTR (gst_uri_decode_bin_autoplug_continue);
|
|
klass->autoplug_factories =
|
|
GST_DEBUG_FUNCPTR (gst_uri_decode_bin_autoplug_factories);
|
|
klass->autoplug_sort = GST_DEBUG_FUNCPTR (gst_uri_decode_bin_autoplug_sort);
|
|
klass->autoplug_select =
|
|
GST_DEBUG_FUNCPTR (gst_uri_decode_bin_autoplug_select);
|
|
klass->autoplug_query = GST_DEBUG_FUNCPTR (gst_uri_decode_bin_autoplug_query);
|
|
}
|
|
|
|
static void
|
|
gst_uri_decode_bin_init (GstURIDecodeBin * dec)
|
|
{
|
|
/* first filter out the interesting element factories */
|
|
g_mutex_init (&dec->factories_lock);
|
|
|
|
g_mutex_init (&dec->lock);
|
|
|
|
dec->uri = g_strdup (DEFAULT_PROP_URI);
|
|
dec->connection_speed = DEFAULT_CONNECTION_SPEED;
|
|
dec->caps = DEFAULT_CAPS;
|
|
dec->encoding = g_strdup (DEFAULT_SUBTITLE_ENCODING);
|
|
|
|
dec->buffer_duration = DEFAULT_BUFFER_DURATION;
|
|
dec->buffer_size = DEFAULT_BUFFER_SIZE;
|
|
dec->download = DEFAULT_DOWNLOAD;
|
|
dec->use_buffering = DEFAULT_USE_BUFFERING;
|
|
dec->force_sw_decoders = DEFAULT_FORCE_SW_DECODERS;
|
|
dec->expose_allstreams = DEFAULT_EXPOSE_ALL_STREAMS;
|
|
dec->ring_buffer_max_size = DEFAULT_RING_BUFFER_MAX_SIZE;
|
|
|
|
GST_OBJECT_FLAG_SET (dec, GST_ELEMENT_FLAG_SOURCE);
|
|
gst_bin_set_suppressed_flags (GST_BIN (dec),
|
|
GST_ELEMENT_FLAG_SOURCE | GST_ELEMENT_FLAG_SINK);
|
|
}
|
|
|
|
static void
|
|
gst_uri_decode_bin_finalize (GObject * obj)
|
|
{
|
|
GstURIDecodeBin *dec = GST_URI_DECODE_BIN (obj);
|
|
|
|
remove_decoders (dec, TRUE);
|
|
g_mutex_clear (&dec->lock);
|
|
g_mutex_clear (&dec->factories_lock);
|
|
g_free (dec->uri);
|
|
g_free (dec->encoding);
|
|
if (dec->factories)
|
|
gst_plugin_feature_list_free (dec->factories);
|
|
if (dec->caps)
|
|
gst_caps_unref (dec->caps);
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize (obj);
|
|
}
|
|
|
|
static void
|
|
gst_uri_decode_bin_set_encoding (GstURIDecodeBin * dec, const gchar * encoding)
|
|
{
|
|
GSList *walk;
|
|
|
|
GST_URI_DECODE_BIN_LOCK (dec);
|
|
|
|
/* set property first */
|
|
GST_OBJECT_LOCK (dec);
|
|
g_free (dec->encoding);
|
|
dec->encoding = g_strdup (encoding);
|
|
GST_OBJECT_UNLOCK (dec);
|
|
|
|
/* set the property on all decodebins now */
|
|
for (walk = dec->decodebins; walk; walk = g_slist_next (walk)) {
|
|
GObject *decodebin = G_OBJECT (walk->data);
|
|
|
|
g_object_set (decodebin, "subtitle-encoding", encoding, NULL);
|
|
}
|
|
GST_URI_DECODE_BIN_UNLOCK (dec);
|
|
}
|
|
|
|
static void
|
|
gst_uri_decode_bin_set_connection_speed (GstURIDecodeBin * dec)
|
|
{
|
|
GSList *walk;
|
|
guint64 connection_speed;
|
|
|
|
GST_OBJECT_LOCK (dec);
|
|
connection_speed = dec->connection_speed;
|
|
GST_OBJECT_UNLOCK (dec);
|
|
|
|
/* set the property on all decodebins now */
|
|
GST_URI_DECODE_BIN_LOCK (dec);
|
|
for (walk = dec->decodebins; walk; walk = g_slist_next (walk)) {
|
|
GObject *decodebin = G_OBJECT (walk->data);
|
|
|
|
g_object_set (decodebin, "connection-speed", connection_speed / 1000, NULL);
|
|
}
|
|
GST_URI_DECODE_BIN_UNLOCK (dec);
|
|
}
|
|
|
|
static void
|
|
gst_uri_decode_bin_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstURIDecodeBin *dec = GST_URI_DECODE_BIN (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_URI:
|
|
GST_OBJECT_LOCK (dec);
|
|
g_free (dec->uri);
|
|
dec->uri = g_value_dup_string (value);
|
|
GST_OBJECT_UNLOCK (dec);
|
|
break;
|
|
case PROP_CONNECTION_SPEED:
|
|
GST_OBJECT_LOCK (dec);
|
|
dec->connection_speed = g_value_get_uint64 (value) * 1000;
|
|
GST_OBJECT_UNLOCK (dec);
|
|
gst_uri_decode_bin_set_connection_speed (dec);
|
|
break;
|
|
case PROP_CAPS:
|
|
GST_OBJECT_LOCK (dec);
|
|
if (dec->caps)
|
|
gst_caps_unref (dec->caps);
|
|
dec->caps = g_value_dup_boxed (value);
|
|
GST_OBJECT_UNLOCK (dec);
|
|
break;
|
|
case PROP_SUBTITLE_ENCODING:
|
|
gst_uri_decode_bin_set_encoding (dec, g_value_get_string (value));
|
|
break;
|
|
case PROP_BUFFER_SIZE:
|
|
dec->buffer_size = g_value_get_int (value);
|
|
break;
|
|
case PROP_BUFFER_DURATION:
|
|
dec->buffer_duration = g_value_get_int64 (value);
|
|
break;
|
|
case PROP_DOWNLOAD:
|
|
dec->download = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_USE_BUFFERING:
|
|
dec->use_buffering = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_FORCE_SW_DECODERS:
|
|
dec->force_sw_decoders = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_EXPOSE_ALL_STREAMS:
|
|
dec->expose_allstreams = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_RING_BUFFER_MAX_SIZE:
|
|
dec->ring_buffer_max_size = g_value_get_uint64 (value);
|
|
break;
|
|
case PROP_POST_STREAM_TOPOLOGY:
|
|
dec->post_stream_topology = g_value_get_boolean (value);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_uri_decode_bin_get_property (GObject * object, guint prop_id,
|
|
GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstURIDecodeBin *dec = GST_URI_DECODE_BIN (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_URI:
|
|
GST_OBJECT_LOCK (dec);
|
|
g_value_set_string (value, dec->uri);
|
|
GST_OBJECT_UNLOCK (dec);
|
|
break;
|
|
case PROP_SOURCE:
|
|
GST_OBJECT_LOCK (dec);
|
|
g_value_set_object (value, dec->source);
|
|
GST_OBJECT_UNLOCK (dec);
|
|
break;
|
|
case PROP_CONNECTION_SPEED:
|
|
GST_OBJECT_LOCK (dec);
|
|
g_value_set_uint64 (value, dec->connection_speed / 1000);
|
|
GST_OBJECT_UNLOCK (dec);
|
|
break;
|
|
case PROP_CAPS:
|
|
GST_OBJECT_LOCK (dec);
|
|
g_value_set_boxed (value, dec->caps);
|
|
GST_OBJECT_UNLOCK (dec);
|
|
break;
|
|
case PROP_SUBTITLE_ENCODING:
|
|
GST_OBJECT_LOCK (dec);
|
|
g_value_set_string (value, dec->encoding);
|
|
GST_OBJECT_UNLOCK (dec);
|
|
break;
|
|
case PROP_BUFFER_SIZE:
|
|
GST_OBJECT_LOCK (dec);
|
|
g_value_set_int (value, dec->buffer_size);
|
|
GST_OBJECT_UNLOCK (dec);
|
|
break;
|
|
case PROP_BUFFER_DURATION:
|
|
GST_OBJECT_LOCK (dec);
|
|
g_value_set_int64 (value, dec->buffer_duration);
|
|
GST_OBJECT_UNLOCK (dec);
|
|
break;
|
|
case PROP_DOWNLOAD:
|
|
g_value_set_boolean (value, dec->download);
|
|
break;
|
|
case PROP_USE_BUFFERING:
|
|
g_value_set_boolean (value, dec->use_buffering);
|
|
break;
|
|
case PROP_FORCE_SW_DECODERS:
|
|
g_value_set_boolean (value, dec->force_sw_decoders);
|
|
break;
|
|
case PROP_EXPOSE_ALL_STREAMS:
|
|
g_value_set_boolean (value, dec->expose_allstreams);
|
|
break;
|
|
case PROP_RING_BUFFER_MAX_SIZE:
|
|
g_value_set_uint64 (value, dec->ring_buffer_max_size);
|
|
break;
|
|
case PROP_POST_STREAM_TOPOLOGY:
|
|
g_value_set_boolean (value, dec->post_stream_topology);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
do_async_start (GstURIDecodeBin * dbin)
|
|
{
|
|
GstMessage *message;
|
|
|
|
dbin->async_pending = TRUE;
|
|
|
|
message = gst_message_new_async_start (GST_OBJECT_CAST (dbin));
|
|
GST_BIN_CLASS (parent_class)->handle_message (GST_BIN_CAST (dbin), message);
|
|
}
|
|
|
|
static void
|
|
do_async_done (GstURIDecodeBin * dbin)
|
|
{
|
|
GstMessage *message;
|
|
|
|
if (dbin->async_pending) {
|
|
GST_DEBUG_OBJECT (dbin, "posting ASYNC_DONE");
|
|
message =
|
|
gst_message_new_async_done (GST_OBJECT_CAST (dbin),
|
|
GST_CLOCK_TIME_NONE);
|
|
GST_BIN_CLASS (parent_class)->handle_message (GST_BIN_CAST (dbin), message);
|
|
|
|
dbin->async_pending = FALSE;
|
|
}
|
|
}
|
|
|
|
#define DEFAULT_QUEUE_SIZE (3 * GST_SECOND)
|
|
#define DEFAULT_QUEUE_MIN_THRESHOLD ((DEFAULT_QUEUE_SIZE * 30) / 100)
|
|
#define DEFAULT_QUEUE_THRESHOLD ((DEFAULT_QUEUE_SIZE * 95) / 100)
|
|
|
|
static void
|
|
unknown_type_cb (GstElement * element, GstPad * pad, GstCaps * caps,
|
|
GstURIDecodeBin * decoder)
|
|
{
|
|
gchar *capsstr;
|
|
|
|
capsstr = gst_caps_to_string (caps);
|
|
GST_ELEMENT_WARNING (decoder, STREAM, CODEC_NOT_FOUND,
|
|
(_("No decoder available for type \'%s\'."), capsstr), (NULL));
|
|
g_free (capsstr);
|
|
}
|
|
|
|
/* add a streaminfo that indicates that the stream is handled by the
|
|
* given element. This usually means that a stream without actual data is
|
|
* produced but one that is sunken by an element. Examples of this are:
|
|
* cdaudio, a hardware decoder/sink, dvd meta bins etc...
|
|
*/
|
|
static void
|
|
add_element_stream (GstElement * element, GstURIDecodeBin * decoder)
|
|
{
|
|
g_warning ("add element stream");
|
|
}
|
|
|
|
/* when the decoder element signals that no more pads will be generated, we
|
|
* can commit the current group.
|
|
*/
|
|
static void
|
|
no_more_pads_full (GstElement * element, gboolean subs,
|
|
GstURIDecodeBin * decoder)
|
|
{
|
|
gboolean final;
|
|
|
|
/* setup phase */
|
|
GST_DEBUG_OBJECT (element, "no more pads, %d pending", decoder->pending);
|
|
|
|
GST_URI_DECODE_BIN_LOCK (decoder);
|
|
final = (decoder->pending == 0);
|
|
|
|
/* nothing pending, we can exit */
|
|
if (final)
|
|
goto done;
|
|
|
|
/* the object has no pending no_more_pads */
|
|
if (!g_object_get_data (G_OBJECT (element), "pending"))
|
|
goto done;
|
|
g_object_set_data (G_OBJECT (element), "pending", NULL);
|
|
|
|
decoder->pending--;
|
|
final = (decoder->pending == 0);
|
|
|
|
done:
|
|
GST_URI_DECODE_BIN_UNLOCK (decoder);
|
|
|
|
if (final) {
|
|
/* If we got not a single stream yet, that means that all
|
|
* decodebins had missing plugins for all of their streams!
|
|
*/
|
|
if (!decoder->streams || g_hash_table_size (decoder->streams) == 0) {
|
|
if (decoder->missing_plugin_errors) {
|
|
GString *str = g_string_new ("");
|
|
GList *l;
|
|
|
|
for (l = decoder->missing_plugin_errors; l; l = l->next) {
|
|
GstMessage *msg = l->data;
|
|
gchar *debug;
|
|
|
|
gst_message_parse_error (msg, NULL, &debug);
|
|
g_string_append (str, debug);
|
|
g_free (debug);
|
|
gst_message_unref (msg);
|
|
}
|
|
g_list_free (decoder->missing_plugin_errors);
|
|
decoder->missing_plugin_errors = NULL;
|
|
|
|
GST_ELEMENT_ERROR (decoder, CORE, MISSING_PLUGIN, (NULL),
|
|
("no suitable plugins found:\n%s", str->str));
|
|
g_string_free (str, TRUE);
|
|
} else {
|
|
GST_ELEMENT_ERROR (decoder, CORE, MISSING_PLUGIN, (NULL),
|
|
("no suitable plugins found"));
|
|
}
|
|
} else {
|
|
gst_element_no_more_pads (GST_ELEMENT_CAST (decoder));
|
|
}
|
|
do_async_done (decoder);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
static void
|
|
no_more_pads (GstElement * element, GstURIDecodeBin * decoder)
|
|
{
|
|
no_more_pads_full (element, FALSE, decoder);
|
|
}
|
|
|
|
static void
|
|
source_no_more_pads (GstElement * element, GstURIDecodeBin * bin)
|
|
{
|
|
GST_DEBUG_OBJECT (bin, "No more pads in source element %s.",
|
|
GST_ELEMENT_NAME (element));
|
|
|
|
g_signal_handler_disconnect (element, bin->src_np_sig_id);
|
|
bin->src_np_sig_id = 0;
|
|
g_signal_handler_disconnect (element, bin->src_nmp_sig_id);
|
|
bin->src_nmp_sig_id = 0;
|
|
|
|
no_more_pads_full (element, FALSE, bin);
|
|
}
|
|
|
|
static void
|
|
configure_stream_buffering (GstURIDecodeBin * decoder)
|
|
{
|
|
GstElement *queue = NULL;
|
|
GHashTableIter iter;
|
|
gpointer key, value;
|
|
gint bitrate = 0;
|
|
|
|
/* automatic configuration enabled ? */
|
|
if (decoder->buffer_size != -1)
|
|
return;
|
|
|
|
GST_URI_DECODE_BIN_LOCK (decoder);
|
|
if (decoder->queue)
|
|
queue = gst_object_ref (decoder->queue);
|
|
|
|
g_hash_table_iter_init (&iter, decoder->streams);
|
|
while (g_hash_table_iter_next (&iter, &key, &value)) {
|
|
GstURIDecodeBinStream *stream = value;
|
|
|
|
if (stream->bitrate && bitrate >= 0)
|
|
bitrate += stream->bitrate;
|
|
else
|
|
bitrate = -1;
|
|
}
|
|
GST_URI_DECODE_BIN_UNLOCK (decoder);
|
|
|
|
GST_DEBUG_OBJECT (decoder, "overall bitrate %d", bitrate);
|
|
if (!queue)
|
|
return;
|
|
|
|
if (bitrate > 0) {
|
|
guint64 time;
|
|
guint bytes;
|
|
|
|
/* all streams have a bitrate;
|
|
* configure queue size based on queue duration using combined bitrate */
|
|
g_object_get (queue, "max-size-time", &time, NULL);
|
|
GST_DEBUG_OBJECT (decoder, "queue buffering time %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (time));
|
|
if (time > 0) {
|
|
bytes = gst_util_uint64_scale (time, bitrate, 8 * GST_SECOND);
|
|
GST_DEBUG_OBJECT (decoder, "corresponds to buffer size %d", bytes);
|
|
g_object_set (queue, "max-size-bytes", bytes, NULL);
|
|
}
|
|
}
|
|
|
|
gst_object_unref (queue);
|
|
}
|
|
|
|
static GstPadProbeReturn
|
|
decoded_pad_event_probe (GstPad * pad, GstPadProbeInfo * info,
|
|
gpointer user_data)
|
|
{
|
|
GstEvent *event = GST_PAD_PROBE_INFO_EVENT (info);
|
|
GstURIDecodeBin *decoder = user_data;
|
|
|
|
GST_LOG_OBJECT (pad, "%s, decoder %p", GST_EVENT_TYPE_NAME (event), decoder);
|
|
|
|
/* look for a bitrate tag */
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_TAG:
|
|
{
|
|
GstTagList *list;
|
|
guint bitrate = 0;
|
|
GstURIDecodeBinStream *stream;
|
|
|
|
gst_event_parse_tag (event, &list);
|
|
if (!gst_tag_list_get_uint_index (list, GST_TAG_NOMINAL_BITRATE, 0,
|
|
&bitrate)) {
|
|
gst_tag_list_get_uint_index (list, GST_TAG_BITRATE, 0, &bitrate);
|
|
}
|
|
GST_DEBUG_OBJECT (pad, "found bitrate %u", bitrate);
|
|
if (bitrate) {
|
|
GST_URI_DECODE_BIN_LOCK (decoder);
|
|
stream = g_hash_table_lookup (decoder->streams, pad);
|
|
GST_URI_DECODE_BIN_UNLOCK (decoder);
|
|
if (stream) {
|
|
stream->bitrate = bitrate;
|
|
/* no longer need this probe now */
|
|
gst_pad_remove_probe (pad, stream->probe_id);
|
|
/* configure buffer if possible */
|
|
configure_stream_buffering (decoder);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* never drop */
|
|
return GST_PAD_PROBE_OK;
|
|
}
|
|
|
|
|
|
static gboolean
|
|
copy_sticky_events (GstPad * pad, GstEvent ** event, gpointer user_data)
|
|
{
|
|
GstPad *gpad = GST_PAD_CAST (user_data);
|
|
|
|
GST_DEBUG_OBJECT (gpad, "store sticky event %" GST_PTR_FORMAT, *event);
|
|
gst_pad_store_sticky_event (gpad, *event);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Called by the signal handlers when a decodebin has found a new raw pad */
|
|
static void
|
|
new_decoded_pad_added_cb (GstElement * element, GstPad * pad,
|
|
GstURIDecodeBin * decoder)
|
|
{
|
|
GstPad *newpad;
|
|
GstPadTemplate *pad_tmpl;
|
|
gchar *padname;
|
|
GstURIDecodeBinStream *stream;
|
|
|
|
GST_DEBUG_OBJECT (element, "new decoded pad, name: <%s>", GST_PAD_NAME (pad));
|
|
|
|
GST_URI_DECODE_BIN_LOCK (decoder);
|
|
padname = g_strdup_printf ("src_%u", decoder->numpads);
|
|
decoder->numpads++;
|
|
GST_URI_DECODE_BIN_UNLOCK (decoder);
|
|
|
|
pad_tmpl = gst_static_pad_template_get (&srctemplate);
|
|
newpad = gst_ghost_pad_new_from_template (padname, pad, pad_tmpl);
|
|
gst_object_unref (pad_tmpl);
|
|
g_free (padname);
|
|
|
|
/* store ref to the ghostpad so we can remove it */
|
|
g_object_set_data (G_OBJECT (pad), "uridecodebin.ghostpad", newpad);
|
|
|
|
/* add event probe to monitor tags */
|
|
stream = g_new0 (GstURIDecodeBinStream, 1);
|
|
stream->probe_id =
|
|
gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM,
|
|
decoded_pad_event_probe, decoder, NULL);
|
|
GST_URI_DECODE_BIN_LOCK (decoder);
|
|
g_hash_table_insert (decoder->streams, pad, stream);
|
|
GST_URI_DECODE_BIN_UNLOCK (decoder);
|
|
|
|
gst_pad_set_active (newpad, TRUE);
|
|
gst_pad_sticky_events_foreach (pad, copy_sticky_events, newpad);
|
|
gst_element_add_pad (GST_ELEMENT_CAST (decoder), newpad);
|
|
}
|
|
|
|
static GstPadProbeReturn
|
|
source_pad_event_probe (GstPad * pad, GstPadProbeInfo * info,
|
|
gpointer user_data)
|
|
{
|
|
GstEvent *event = GST_PAD_PROBE_INFO_EVENT (info);
|
|
GstURIDecodeBin *decoder = user_data;
|
|
|
|
GST_LOG_OBJECT (pad, "%s, decoder %p", GST_EVENT_TYPE_NAME (event), decoder);
|
|
|
|
if (GST_EVENT_TYPE (event) == GST_EVENT_EOS) {
|
|
GST_DEBUG_OBJECT (pad, "we received EOS");
|
|
|
|
g_signal_emit (decoder,
|
|
gst_uri_decode_bin_signals[SIGNAL_DRAINED], 0, NULL);
|
|
}
|
|
/* never drop events */
|
|
return GST_PAD_PROBE_OK;
|
|
}
|
|
|
|
/* called when we found a raw pad on the source element. We need to set up a
|
|
* padprobe to detect EOS before exposing the pad. */
|
|
static void
|
|
expose_decoded_pad (GstElement * element, GstPad * pad,
|
|
GstURIDecodeBin * decoder)
|
|
{
|
|
gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM,
|
|
source_pad_event_probe, decoder, NULL);
|
|
|
|
new_decoded_pad_added_cb (element, pad, decoder);
|
|
}
|
|
|
|
static void
|
|
pad_removed_cb (GstElement * element, GstPad * pad, GstURIDecodeBin * decoder)
|
|
{
|
|
GstPad *ghost;
|
|
|
|
GST_DEBUG_OBJECT (element, "pad removed name: <%s:%s>",
|
|
GST_DEBUG_PAD_NAME (pad));
|
|
|
|
/* we only care about srcpads */
|
|
if (!GST_PAD_IS_SRC (pad))
|
|
return;
|
|
|
|
if (!(ghost = g_object_get_data (G_OBJECT (pad), "uridecodebin.ghostpad")))
|
|
goto no_ghost;
|
|
|
|
/* unghost the pad */
|
|
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (ghost), NULL);
|
|
|
|
/* deactivate and remove */
|
|
gst_pad_set_active (pad, FALSE);
|
|
gst_element_remove_pad (GST_ELEMENT_CAST (decoder), ghost);
|
|
|
|
return;
|
|
|
|
/* ERRORS */
|
|
no_ghost:
|
|
{
|
|
GST_WARNING_OBJECT (element, "no ghost pad found");
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* helper function to lookup stuff in lists */
|
|
static gboolean
|
|
array_has_value (const gchar * values[], const gchar * value)
|
|
{
|
|
gint i;
|
|
|
|
for (i = 0; values[i]; i++) {
|
|
if (g_str_has_prefix (value, values[i]))
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
array_has_uri_value (const gchar * values[], const gchar * value)
|
|
{
|
|
gint i;
|
|
|
|
for (i = 0; values[i]; i++) {
|
|
if (!g_ascii_strncasecmp (value, values[i], strlen (values[i])))
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
/* list of URIs that we consider to be streams and that need buffering.
|
|
* We have no mechanism yet to figure this out with a query. */
|
|
static const gchar *stream_uris[] = { "http://", "https://", "mms://",
|
|
"mmsh://", "mmsu://", "mmst://", "fd://", "myth://", "ssh://",
|
|
"ftp://", "sftp://",
|
|
NULL
|
|
};
|
|
|
|
/* list of URIs that need a queue because they are pretty bursty */
|
|
static const gchar *queue_uris[] = { "cdda://", NULL };
|
|
|
|
/* blacklisted URIs, we know they will always fail. */
|
|
static const gchar *blacklisted_uris[] = { NULL };
|
|
|
|
/* media types that use adaptive streaming */
|
|
static const gchar *adaptive_media[] = {
|
|
"application/x-hls", "application/vnd.ms-sstr+xml",
|
|
"application/dash+xml", NULL
|
|
};
|
|
|
|
#define IS_STREAM_URI(uri) (array_has_uri_value (stream_uris, uri))
|
|
#define IS_QUEUE_URI(uri) (array_has_uri_value (queue_uris, uri))
|
|
#define IS_BLACKLISTED_URI(uri) (array_has_uri_value (blacklisted_uris, uri))
|
|
#define IS_ADAPTIVE_MEDIA(media) (array_has_value (adaptive_media, media))
|
|
|
|
/*
|
|
* Generate and configure a source element.
|
|
*
|
|
* Returns: (transfer full): a new #GstElement
|
|
*/
|
|
static GstElement *
|
|
gen_source_element (GstURIDecodeBin * decoder)
|
|
{
|
|
GObjectClass *source_class;
|
|
GstElement *source;
|
|
GParamSpec *pspec;
|
|
GstQuery *query;
|
|
GstSchedulingFlags flags;
|
|
GError *err = NULL;
|
|
|
|
if (!decoder->uri)
|
|
goto no_uri;
|
|
|
|
GST_LOG_OBJECT (decoder, "finding source for %s", decoder->uri);
|
|
|
|
if (!gst_uri_is_valid (decoder->uri))
|
|
goto invalid_uri;
|
|
|
|
if (IS_BLACKLISTED_URI (decoder->uri))
|
|
goto uri_blacklisted;
|
|
|
|
source =
|
|
gst_element_make_from_uri (GST_URI_SRC, decoder->uri, "source", &err);
|
|
if (!source)
|
|
goto no_source;
|
|
|
|
GST_LOG_OBJECT (decoder, "found source type %s", G_OBJECT_TYPE_NAME (source));
|
|
|
|
source_class = G_OBJECT_GET_CLASS (source);
|
|
|
|
pspec = g_object_class_find_property (source_class, "connection-speed");
|
|
if (pspec != NULL) {
|
|
guint64 speed = decoder->connection_speed / 1000;
|
|
gboolean wrong_type = FALSE;
|
|
|
|
if (G_PARAM_SPEC_TYPE (pspec) == G_TYPE_PARAM_UINT) {
|
|
GParamSpecUInt *pspecuint = G_PARAM_SPEC_UINT (pspec);
|
|
|
|
speed = CLAMP (speed, pspecuint->minimum, pspecuint->maximum);
|
|
} else if (G_PARAM_SPEC_TYPE (pspec) == G_TYPE_PARAM_INT) {
|
|
GParamSpecInt *pspecint = G_PARAM_SPEC_INT (pspec);
|
|
|
|
speed = CLAMP (speed, pspecint->minimum, pspecint->maximum);
|
|
} else if (G_PARAM_SPEC_TYPE (pspec) == G_TYPE_PARAM_UINT64) {
|
|
GParamSpecUInt64 *pspecuint = G_PARAM_SPEC_UINT64 (pspec);
|
|
|
|
speed = CLAMP (speed, pspecuint->minimum, pspecuint->maximum);
|
|
} else if (G_PARAM_SPEC_TYPE (pspec) == G_TYPE_PARAM_INT64) {
|
|
GParamSpecInt64 *pspecint = G_PARAM_SPEC_INT64 (pspec);
|
|
|
|
speed = CLAMP (speed, pspecint->minimum, pspecint->maximum);
|
|
} else {
|
|
GST_WARNING_OBJECT (decoder,
|
|
"The connection speed property %" G_GUINT64_FORMAT
|
|
" of type %s is not useful not setting it", speed,
|
|
g_type_name (G_PARAM_SPEC_TYPE (pspec)));
|
|
wrong_type = TRUE;
|
|
}
|
|
|
|
if (!wrong_type) {
|
|
g_object_set (source, "connection-speed", speed, NULL);
|
|
|
|
GST_DEBUG_OBJECT (decoder,
|
|
"setting connection-speed=%" G_GUINT64_FORMAT " to source element",
|
|
speed);
|
|
}
|
|
}
|
|
|
|
pspec = g_object_class_find_property (source_class, "subtitle-encoding");
|
|
if (pspec != NULL && G_PARAM_SPEC_VALUE_TYPE (pspec) == G_TYPE_STRING) {
|
|
GST_DEBUG_OBJECT (decoder,
|
|
"setting subtitle-encoding=%s to source element", decoder->encoding);
|
|
g_object_set (source, "subtitle-encoding", decoder->encoding, NULL);
|
|
}
|
|
|
|
/* Sink reference before passing it to signal handler.
|
|
* Language binding might otherwise sink it and then unref.
|
|
* A floating ref is also tricky for a native signal handler in case
|
|
* of a "transfer floating" call followed by unref
|
|
* (e.g. some container_add and then container_remove).
|
|
* Bottom line; best not have a floating ref boldly going into unknown code.
|
|
*/
|
|
g_object_ref_sink (source);
|
|
|
|
g_signal_emit (decoder, gst_uri_decode_bin_signals[SIGNAL_SOURCE_SETUP],
|
|
0, source);
|
|
|
|
decoder->is_stream = IS_STREAM_URI (decoder->uri);
|
|
|
|
query = gst_query_new_scheduling ();
|
|
if (gst_element_query (source, query)) {
|
|
gst_query_parse_scheduling (query, &flags, NULL, NULL, NULL);
|
|
if ((flags & GST_SCHEDULING_FLAG_BANDWIDTH_LIMITED))
|
|
decoder->is_stream = TRUE;
|
|
}
|
|
gst_query_unref (query);
|
|
|
|
GST_LOG_OBJECT (decoder, "source is stream: %d", decoder->is_stream);
|
|
|
|
decoder->need_queue = IS_QUEUE_URI (decoder->uri);
|
|
GST_LOG_OBJECT (decoder, "source needs queue: %d", decoder->need_queue);
|
|
|
|
return source;
|
|
|
|
/* ERRORS */
|
|
no_uri:
|
|
{
|
|
GST_ELEMENT_ERROR (decoder, RESOURCE, NOT_FOUND,
|
|
(_("No URI specified to play from.")), (NULL));
|
|
return NULL;
|
|
}
|
|
invalid_uri:
|
|
{
|
|
GST_ELEMENT_ERROR (decoder, RESOURCE, NOT_FOUND,
|
|
(_("Invalid URI \"%s\"."), decoder->uri), (NULL));
|
|
g_clear_error (&err);
|
|
return NULL;
|
|
}
|
|
uri_blacklisted:
|
|
{
|
|
GST_ELEMENT_ERROR (decoder, RESOURCE, FAILED,
|
|
(_("This stream type cannot be played yet.")), (NULL));
|
|
return NULL;
|
|
}
|
|
no_source:
|
|
{
|
|
/* whoops, could not create the source element, dig a little deeper to
|
|
* figure out what might be wrong. */
|
|
if (err != NULL && err->code == GST_URI_ERROR_UNSUPPORTED_PROTOCOL) {
|
|
gchar *prot;
|
|
|
|
prot = gst_uri_get_protocol (decoder->uri);
|
|
if (prot == NULL)
|
|
goto invalid_uri;
|
|
|
|
gst_element_post_message (GST_ELEMENT_CAST (decoder),
|
|
gst_missing_uri_source_message_new (GST_ELEMENT (decoder), prot));
|
|
|
|
GST_ELEMENT_ERROR (decoder, CORE, MISSING_PLUGIN,
|
|
(_("No URI handler implemented for \"%s\"."), prot), (NULL));
|
|
|
|
g_free (prot);
|
|
} else {
|
|
GST_ELEMENT_ERROR (decoder, RESOURCE, NOT_FOUND,
|
|
("%s", (err) ? err->message : "URI was not accepted by any element"),
|
|
("No element accepted URI '%s'", decoder->uri));
|
|
}
|
|
|
|
g_clear_error (&err);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* has_raw_caps:
|
|
* @pad: a #GstPad
|
|
* @all_raw: pointer to hold the result
|
|
*
|
|
* check if the caps of the pad are all raw. The caps are all raw if
|
|
* all of its structures contain audio/x-raw or video/x-raw.
|
|
*
|
|
* Returns: %FALSE @pad caps are not set and raw
|
|
*/
|
|
static gboolean
|
|
has_raw_caps (GstPad * pad, GstCaps * rawcaps)
|
|
{
|
|
GstCaps *caps, *intersection;
|
|
gint capssize;
|
|
gboolean res = FALSE;
|
|
|
|
caps = gst_pad_get_current_caps (pad);
|
|
if (caps == NULL)
|
|
return FALSE;
|
|
|
|
GST_DEBUG_OBJECT (pad, "have caps %" GST_PTR_FORMAT, caps);
|
|
|
|
capssize = gst_caps_get_size (caps);
|
|
/* no caps, skip and move to the next pad */
|
|
if (capssize == 0 || gst_caps_is_empty (caps) || gst_caps_is_any (caps))
|
|
goto done;
|
|
|
|
intersection = gst_caps_intersect (caps, rawcaps);
|
|
res = !gst_caps_is_empty (intersection);
|
|
gst_caps_unref (intersection);
|
|
|
|
done:
|
|
gst_caps_unref (caps);
|
|
return res;
|
|
}
|
|
|
|
static void
|
|
post_missing_plugin_error (GstElement * dec, const gchar * element_name)
|
|
{
|
|
GstMessage *msg;
|
|
|
|
msg = gst_missing_element_message_new (dec, element_name);
|
|
gst_element_post_message (dec, msg);
|
|
|
|
GST_ELEMENT_ERROR (dec, CORE, MISSING_PLUGIN,
|
|
(_("Missing element '%s' - check your GStreamer installation."),
|
|
element_name), (NULL));
|
|
do_async_done (GST_URI_DECODE_BIN (dec));
|
|
}
|
|
|
|
/**
|
|
* analyse_source:
|
|
* @decoder: a #GstURIDecodeBin
|
|
* @is_raw: are all pads raw data
|
|
* @have_out: does the source have output
|
|
* @is_dynamic: is this a dynamic source
|
|
* @use_queue: put a queue before raw output pads
|
|
*
|
|
* Check the source of @decoder and collect information about it.
|
|
*
|
|
* @is_raw will be set to TRUE if the source only produces raw pads. When this
|
|
* function returns, all of the raw pad of the source will be added
|
|
* to @decoder.
|
|
*
|
|
* @have_out: will be set to TRUE if the source has output pads.
|
|
*
|
|
* @is_dynamic: TRUE if the element will create (more) pads dynamically later
|
|
* on.
|
|
*
|
|
* Returns: FALSE if a fatal error occurred while scanning.
|
|
*/
|
|
static gboolean
|
|
analyse_source (GstURIDecodeBin * decoder, gboolean * is_raw,
|
|
gboolean * have_out, gboolean * is_dynamic, gboolean use_queue)
|
|
{
|
|
GstIterator *pads_iter;
|
|
gboolean done = FALSE;
|
|
gboolean res = TRUE;
|
|
GstCaps *rawcaps;
|
|
GstPad *pad;
|
|
GValue item = { 0, };
|
|
|
|
*have_out = FALSE;
|
|
*is_raw = FALSE;
|
|
*is_dynamic = FALSE;
|
|
|
|
g_object_get (decoder, "caps", &rawcaps, NULL);
|
|
if (!rawcaps)
|
|
rawcaps = DEFAULT_CAPS;
|
|
|
|
pads_iter = gst_element_iterate_src_pads (decoder->source);
|
|
while (!done) {
|
|
switch (gst_iterator_next (pads_iter, &item)) {
|
|
case GST_ITERATOR_ERROR:
|
|
res = FALSE;
|
|
/* FALLTHROUGH */
|
|
case GST_ITERATOR_DONE:
|
|
done = TRUE;
|
|
break;
|
|
case GST_ITERATOR_RESYNC:
|
|
/* reset results and resync */
|
|
*have_out = FALSE;
|
|
*is_raw = FALSE;
|
|
*is_dynamic = FALSE;
|
|
gst_iterator_resync (pads_iter);
|
|
break;
|
|
case GST_ITERATOR_OK:
|
|
pad = g_value_dup_object (&item);
|
|
/* we now officially have an output pad */
|
|
*have_out = TRUE;
|
|
|
|
/* if FALSE, this pad has no caps and we continue with the next pad. */
|
|
if (!has_raw_caps (pad, rawcaps)) {
|
|
gst_object_unref (pad);
|
|
g_value_reset (&item);
|
|
break;
|
|
} else {
|
|
/* caps on source pad are all raw, we can add the pad */
|
|
GstElement *outelem;
|
|
|
|
*is_raw = TRUE;
|
|
if (use_queue) {
|
|
GstPad *sinkpad;
|
|
|
|
/* insert a queue element right before the raw pad */
|
|
outelem = gst_element_factory_make ("queue2", NULL);
|
|
if (!outelem)
|
|
goto no_queue2;
|
|
|
|
gst_bin_add (GST_BIN_CAST (decoder), outelem);
|
|
|
|
sinkpad = gst_element_get_static_pad (outelem, "sink");
|
|
gst_pad_link (pad, sinkpad);
|
|
gst_object_unref (sinkpad);
|
|
|
|
/* save queue pointer so we can remove it later */
|
|
decoder->queue = outelem;
|
|
|
|
/* get the new raw srcpad */
|
|
gst_object_unref (pad);
|
|
pad = gst_element_get_static_pad (outelem, "src");
|
|
} else {
|
|
outelem = decoder->source;
|
|
}
|
|
expose_decoded_pad (outelem, pad, decoder);
|
|
}
|
|
gst_object_unref (pad);
|
|
g_value_reset (&item);
|
|
break;
|
|
}
|
|
}
|
|
g_value_unset (&item);
|
|
gst_iterator_free (pads_iter);
|
|
gst_caps_unref (rawcaps);
|
|
|
|
if (!*have_out) {
|
|
GstElementClass *elemclass;
|
|
GList *walk;
|
|
|
|
/* element has no output pads, check for padtemplates that list SOMETIMES
|
|
* pads. */
|
|
elemclass = GST_ELEMENT_GET_CLASS (decoder->source);
|
|
|
|
walk = gst_element_class_get_pad_template_list (elemclass);
|
|
while (walk != NULL) {
|
|
GstPadTemplate *templ;
|
|
|
|
templ = (GstPadTemplate *) walk->data;
|
|
if (GST_PAD_TEMPLATE_DIRECTION (templ) == GST_PAD_SRC) {
|
|
if (GST_PAD_TEMPLATE_PRESENCE (templ) == GST_PAD_SOMETIMES)
|
|
*is_dynamic = TRUE;
|
|
break;
|
|
}
|
|
walk = g_list_next (walk);
|
|
}
|
|
}
|
|
|
|
return res;
|
|
no_queue2:
|
|
{
|
|
post_missing_plugin_error (GST_ELEMENT_CAST (decoder), "queue2");
|
|
|
|
gst_object_unref (pad);
|
|
g_value_unset (&item);
|
|
gst_iterator_free (pads_iter);
|
|
gst_caps_unref (rawcaps);
|
|
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/* Remove all decodebin from ourself
|
|
* If force is FALSE, then the decodebin instances will be stored in
|
|
* pending_decodebins for re-use later on.
|
|
* If force is TRUE, then all decodebin instances will be unreferenced
|
|
* and cleared, including the pending ones. */
|
|
static void
|
|
remove_decoders (GstURIDecodeBin * bin, gboolean force)
|
|
{
|
|
GSList *walk;
|
|
|
|
for (walk = bin->decodebins; walk; walk = g_slist_next (walk)) {
|
|
GstElement *decoder = GST_ELEMENT_CAST (walk->data);
|
|
|
|
GST_DEBUG_OBJECT (bin, "removing old decoder element");
|
|
|
|
/* Even if we reuse this decodebin, the previous topology will
|
|
* be irrelevant */
|
|
g_object_set_data (G_OBJECT (decoder), "uridecodebin-topology", NULL);
|
|
|
|
if (force) {
|
|
gst_element_set_state (decoder, GST_STATE_NULL);
|
|
gst_bin_remove (GST_BIN_CAST (bin), decoder);
|
|
} else {
|
|
GstCaps *caps;
|
|
|
|
gst_element_set_state (decoder, GST_STATE_READY);
|
|
/* add it to our list of pending decodebins */
|
|
gst_object_ref (decoder);
|
|
gst_bin_remove (GST_BIN_CAST (bin), decoder);
|
|
/* restore some properties we might have changed */
|
|
g_object_set (decoder, "sink-caps", NULL, NULL);
|
|
caps = DEFAULT_CAPS;
|
|
g_object_set (decoder, "caps", caps, NULL);
|
|
gst_caps_unref (caps);
|
|
|
|
bin->pending_decodebins =
|
|
g_slist_prepend (bin->pending_decodebins, decoder);
|
|
}
|
|
}
|
|
g_slist_free (bin->decodebins);
|
|
bin->decodebins = NULL;
|
|
if (force) {
|
|
GSList *tmp;
|
|
|
|
for (tmp = bin->pending_decodebins; tmp; tmp = tmp->next) {
|
|
gst_element_set_state ((GstElement *) tmp->data, GST_STATE_NULL);
|
|
gst_object_unref ((GstElement *) tmp->data);
|
|
}
|
|
g_slist_free (bin->pending_decodebins);
|
|
bin->pending_decodebins = NULL;
|
|
|
|
}
|
|
}
|
|
|
|
static void
|
|
proxy_unknown_type_signal (GstElement * decodebin, GstPad * pad, GstCaps * caps,
|
|
GstURIDecodeBin * dec)
|
|
{
|
|
GST_DEBUG_OBJECT (dec, "unknown-type signaled");
|
|
|
|
g_signal_emit (dec,
|
|
gst_uri_decode_bin_signals[SIGNAL_UNKNOWN_TYPE], 0, pad, caps);
|
|
}
|
|
|
|
static gboolean
|
|
proxy_autoplug_continue_signal (GstElement * decodebin, GstPad * pad,
|
|
GstCaps * caps, GstURIDecodeBin * dec)
|
|
{
|
|
gboolean result;
|
|
|
|
g_signal_emit (dec,
|
|
gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_CONTINUE], 0, pad, caps,
|
|
&result);
|
|
|
|
GST_DEBUG_OBJECT (dec, "autoplug-continue returned %d", result);
|
|
|
|
return result;
|
|
}
|
|
|
|
static GValueArray *
|
|
proxy_autoplug_factories_signal (GstElement * decodebin, GstPad * pad,
|
|
GstCaps * caps, GstURIDecodeBin * dec)
|
|
{
|
|
GValueArray *result;
|
|
|
|
g_signal_emit (dec,
|
|
gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_FACTORIES], 0, pad, caps,
|
|
&result);
|
|
|
|
GST_DEBUG_OBJECT (dec, "autoplug-factories returned %p", result);
|
|
|
|
return result;
|
|
}
|
|
|
|
static GValueArray *
|
|
proxy_autoplug_sort_signal (GstElement * decodebin, GstPad * pad,
|
|
GstCaps * caps, GValueArray * factories, GstURIDecodeBin * dec)
|
|
{
|
|
GValueArray *result;
|
|
|
|
g_signal_emit (dec,
|
|
gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_SORT], 0, pad, caps,
|
|
factories, &result);
|
|
|
|
GST_DEBUG_OBJECT (dec, "autoplug-sort returned %p", result);
|
|
|
|
return result;
|
|
}
|
|
|
|
static GstAutoplugSelectResult
|
|
proxy_autoplug_select_signal (GstElement * decodebin, GstPad * pad,
|
|
GstCaps * caps, GstElementFactory * factory, GstURIDecodeBin * dec)
|
|
{
|
|
GstAutoplugSelectResult result;
|
|
|
|
g_signal_emit (dec,
|
|
gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_SELECT], 0, pad, caps, factory,
|
|
&result);
|
|
|
|
GST_DEBUG_OBJECT (dec, "autoplug-select returned %d", result);
|
|
|
|
return result;
|
|
}
|
|
|
|
static gboolean
|
|
proxy_autoplug_query_signal (GstElement * decodebin, GstPad * pad,
|
|
GstElement * element, GstQuery * query, GstURIDecodeBin * dec)
|
|
{
|
|
gboolean ret = FALSE;
|
|
|
|
g_signal_emit (dec,
|
|
gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_QUERY], 0, pad, element, query,
|
|
&ret);
|
|
|
|
GST_DEBUG_OBJECT (dec, "autoplug-query returned %d", ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
proxy_drained_signal (GstElement * decodebin, GstURIDecodeBin * dec)
|
|
{
|
|
GST_DEBUG_OBJECT (dec, "drained signaled");
|
|
|
|
g_signal_emit (dec, gst_uri_decode_bin_signals[SIGNAL_DRAINED], 0, NULL);
|
|
}
|
|
|
|
/* make a decodebin and connect to all the signals */
|
|
static GstElement *
|
|
make_decoder (GstURIDecodeBin * decoder)
|
|
{
|
|
GstElement *decodebin;
|
|
gboolean unref_dbin = FALSE;
|
|
|
|
/* re-use pending decodebin */
|
|
if (decoder->pending_decodebins) {
|
|
GSList *first = decoder->pending_decodebins;
|
|
GST_LOG_OBJECT (decoder, "re-using pending decodebin");
|
|
decodebin = (GstElement *) first->data;
|
|
decoder->pending_decodebins =
|
|
g_slist_delete_link (decoder->pending_decodebins, first);
|
|
unref_dbin = TRUE;
|
|
} else {
|
|
GST_LOG_OBJECT (decoder, "making new decodebin");
|
|
|
|
/* now create the decoder element */
|
|
decodebin = gst_element_factory_make ("decodebin", NULL);
|
|
|
|
if (!decodebin)
|
|
goto no_decodebin;
|
|
|
|
/* sanity check */
|
|
if (decodebin->numsinkpads == 0)
|
|
goto no_typefind;
|
|
|
|
/* connect signals to proxy */
|
|
g_signal_connect (decodebin, "unknown-type",
|
|
G_CALLBACK (proxy_unknown_type_signal), decoder);
|
|
g_signal_connect (decodebin, "autoplug-continue",
|
|
G_CALLBACK (proxy_autoplug_continue_signal), decoder);
|
|
g_signal_connect (decodebin, "autoplug-factories",
|
|
G_CALLBACK (proxy_autoplug_factories_signal), decoder);
|
|
g_signal_connect (decodebin, "autoplug-sort",
|
|
G_CALLBACK (proxy_autoplug_sort_signal), decoder);
|
|
g_signal_connect (decodebin, "autoplug-select",
|
|
G_CALLBACK (proxy_autoplug_select_signal), decoder);
|
|
g_signal_connect (decodebin, "autoplug-query",
|
|
G_CALLBACK (proxy_autoplug_query_signal), decoder);
|
|
g_signal_connect (decodebin, "drained",
|
|
G_CALLBACK (proxy_drained_signal), decoder);
|
|
|
|
/* set up callbacks to create the links between decoded data
|
|
* and video/audio/subtitle rendering/output. */
|
|
g_signal_connect (decodebin,
|
|
"pad-added", G_CALLBACK (new_decoded_pad_added_cb), decoder);
|
|
g_signal_connect (decodebin,
|
|
"pad-removed", G_CALLBACK (pad_removed_cb), decoder);
|
|
g_signal_connect (decodebin, "no-more-pads",
|
|
G_CALLBACK (no_more_pads), decoder);
|
|
g_signal_connect (decodebin,
|
|
"unknown-type", G_CALLBACK (unknown_type_cb), decoder);
|
|
}
|
|
|
|
g_object_set (decodebin, "force-sw-decoders", decoder->force_sw_decoders,
|
|
NULL);
|
|
|
|
/* configure caps if we have any */
|
|
if (decoder->caps)
|
|
g_object_set (decodebin, "caps", decoder->caps, NULL);
|
|
|
|
/* Propagate expose-all-streams, connection-speed properties
|
|
* and post_stream_topology */
|
|
g_object_set (decodebin, "expose-all-streams", decoder->expose_allstreams,
|
|
"connection-speed", decoder->connection_speed / 1000,
|
|
"post-stream-topology", decoder->post_stream_topology, NULL);
|
|
|
|
if (!decoder->is_stream || decoder->is_adaptive) {
|
|
/* propagate the use-buffering property but only when we are not already
|
|
* doing stream buffering with queue2. FIXME, we might want to do stream
|
|
* buffering with the multiqueue buffering instead of queue2. */
|
|
g_object_set (decodebin, "use-buffering", decoder->use_buffering
|
|
|| decoder->is_adaptive, NULL);
|
|
|
|
if (decoder->use_buffering || decoder->is_adaptive) {
|
|
guint max_bytes;
|
|
guint64 max_time;
|
|
|
|
/* configure sizes when buffering */
|
|
if ((max_bytes = decoder->buffer_size) == -1)
|
|
max_bytes = 2 * 1024 * 1024;
|
|
if ((max_time = decoder->buffer_duration) == -1)
|
|
max_time = 5 * GST_SECOND;
|
|
|
|
g_object_set (decodebin, "max-size-bytes", max_bytes, "max-size-buffers",
|
|
(guint) 0, "max-size-time", max_time, NULL);
|
|
}
|
|
}
|
|
|
|
g_object_set_data (G_OBJECT (decodebin), "pending", GINT_TO_POINTER (1));
|
|
g_object_set (decodebin, "subtitle-encoding", decoder->encoding, NULL);
|
|
decoder->pending++;
|
|
GST_LOG_OBJECT (decoder, "have %d pending dynamic objects", decoder->pending);
|
|
|
|
gst_bin_add (GST_BIN_CAST (decoder), decodebin);
|
|
|
|
decoder->decodebins = g_slist_prepend (decoder->decodebins, decodebin);
|
|
/* Unref if this decodebin came from our pending_decodebins,
|
|
* since we were holding strong reference to decodebin and gst_bin_add()
|
|
* will increase refcount */
|
|
if (unref_dbin)
|
|
gst_object_unref (decodebin);
|
|
|
|
return decodebin;
|
|
|
|
/* ERRORS */
|
|
no_decodebin:
|
|
{
|
|
post_missing_plugin_error (GST_ELEMENT_CAST (decoder), "decodebin");
|
|
GST_ELEMENT_ERROR (decoder, CORE, MISSING_PLUGIN, (NULL),
|
|
("No decodebin element, check your installation"));
|
|
do_async_done (decoder);
|
|
return NULL;
|
|
}
|
|
no_typefind:
|
|
{
|
|
gst_object_unref (decodebin);
|
|
GST_ELEMENT_ERROR (decoder, CORE, MISSING_PLUGIN, (NULL),
|
|
("No typefind element, decodebin is unusable, check your installation"));
|
|
do_async_done (decoder);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/* signaled when we have a stream and we need to configure the download
|
|
* buffering or regular buffering */
|
|
static void
|
|
type_found (GstElement * typefind, guint probability,
|
|
GstCaps * caps, GstURIDecodeBin * decoder)
|
|
{
|
|
GstElement *src_elem, *dec_elem, *queue = NULL;
|
|
GstStructure *s;
|
|
const gchar *media_type, *elem_name;
|
|
gboolean do_download = FALSE;
|
|
|
|
GST_DEBUG_OBJECT (decoder, "typefind found caps %" GST_PTR_FORMAT, caps);
|
|
|
|
s = gst_caps_get_structure (caps, 0);
|
|
media_type = gst_structure_get_name (s);
|
|
|
|
decoder->is_adaptive = IS_ADAPTIVE_MEDIA (media_type);
|
|
|
|
/* only enable download buffering if the upstream duration is known */
|
|
if (decoder->download) {
|
|
gint64 dur;
|
|
|
|
do_download = (gst_element_query_duration (typefind, GST_FORMAT_BYTES, &dur)
|
|
&& dur != -1);
|
|
}
|
|
|
|
dec_elem = make_decoder (decoder);
|
|
if (!dec_elem)
|
|
goto no_decodebin;
|
|
|
|
if (decoder->is_adaptive) {
|
|
src_elem = typefind;
|
|
} else {
|
|
if (do_download) {
|
|
elem_name = "downloadbuffer";
|
|
} else {
|
|
elem_name = "queue2";
|
|
}
|
|
queue = gst_element_factory_make (elem_name, NULL);
|
|
if (!queue)
|
|
goto no_buffer_element;
|
|
|
|
decoder->queue = queue;
|
|
|
|
GST_DEBUG_OBJECT (decoder, "check media-type %s, %d", media_type,
|
|
do_download);
|
|
|
|
if (do_download) {
|
|
gchar *temp_template, *filename;
|
|
const gchar *tmp_dir, *prgname;
|
|
|
|
tmp_dir = g_get_user_cache_dir ();
|
|
prgname = g_get_prgname ();
|
|
if (prgname == NULL)
|
|
prgname = "GStreamer";
|
|
|
|
filename = g_strdup_printf ("%s-XXXXXX", prgname);
|
|
|
|
/* build our filename */
|
|
temp_template = g_build_filename (tmp_dir, filename, NULL);
|
|
|
|
GST_DEBUG_OBJECT (decoder, "enable download buffering in %s (%s, %s, %s)",
|
|
temp_template, tmp_dir, prgname, filename);
|
|
|
|
/* configure progressive download for selected media types */
|
|
g_object_set (queue, "temp-template", temp_template, NULL);
|
|
|
|
g_free (filename);
|
|
g_free (temp_template);
|
|
} else {
|
|
g_object_set (queue, "use-buffering", TRUE, NULL);
|
|
g_object_set (queue, "ring-buffer-max-size",
|
|
decoder->ring_buffer_max_size, NULL);
|
|
/* Disable max-size-buffers */
|
|
g_object_set (queue, "max-size-buffers", 0, NULL);
|
|
}
|
|
|
|
/* If buffer size or duration are set, set them on the element */
|
|
if (decoder->buffer_size != -1)
|
|
g_object_set (queue, "max-size-bytes", decoder->buffer_size, NULL);
|
|
if (decoder->buffer_duration != -1)
|
|
g_object_set (queue, "max-size-time", decoder->buffer_duration, NULL);
|
|
|
|
gst_bin_add (GST_BIN_CAST (decoder), queue);
|
|
|
|
if (!gst_element_link_pads (typefind, "src", queue, "sink"))
|
|
goto could_not_link;
|
|
src_elem = queue;
|
|
}
|
|
|
|
/* to force caps on the decodebin element and avoid reparsing stuff by
|
|
* typefind. It also avoids a deadlock in the way typefind activates pads in
|
|
* the state change */
|
|
g_object_set (dec_elem, "sink-caps", caps, NULL);
|
|
|
|
if (!gst_element_link_pads (src_elem, "src", dec_elem, "sink"))
|
|
goto could_not_link;
|
|
|
|
/* PLAYING in one go might fail (see bug #632782) */
|
|
gst_element_set_state (dec_elem, GST_STATE_PAUSED);
|
|
gst_element_sync_state_with_parent (dec_elem);
|
|
if (queue)
|
|
gst_element_sync_state_with_parent (queue);
|
|
|
|
return;
|
|
|
|
/* ERRORS */
|
|
no_decodebin:
|
|
{
|
|
/* error was posted */
|
|
return;
|
|
}
|
|
could_not_link:
|
|
{
|
|
GST_ELEMENT_ERROR (decoder, CORE, NEGOTIATION,
|
|
(NULL), ("Can't link typefind to decodebin element"));
|
|
do_async_done (decoder);
|
|
return;
|
|
}
|
|
no_buffer_element:
|
|
{
|
|
post_missing_plugin_error (GST_ELEMENT_CAST (decoder), elem_name);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* setup a streaming source. This will first plug a typefind element to the
|
|
* source. After we find the type, we decide to plug a queue2 and continue to
|
|
* plug a decodebin starting from the found caps */
|
|
static gboolean
|
|
setup_streaming (GstURIDecodeBin * decoder)
|
|
{
|
|
GstElement *typefind;
|
|
|
|
/* now create the decoder element */
|
|
typefind = gst_element_factory_make ("typefind", NULL);
|
|
if (!typefind)
|
|
goto no_typefind;
|
|
|
|
gst_bin_add (GST_BIN_CAST (decoder), typefind);
|
|
|
|
if (!gst_element_link_pads (decoder->source, NULL, typefind, "sink"))
|
|
goto could_not_link;
|
|
|
|
decoder->typefind = typefind;
|
|
|
|
/* connect a signal to find out when the typefind element found
|
|
* a type */
|
|
decoder->have_type_id =
|
|
g_signal_connect (decoder->typefind, "have-type",
|
|
G_CALLBACK (type_found), decoder);
|
|
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
no_typefind:
|
|
{
|
|
post_missing_plugin_error (GST_ELEMENT_CAST (decoder), "typefind");
|
|
GST_ELEMENT_ERROR (decoder, CORE, MISSING_PLUGIN, (NULL),
|
|
("No typefind element, check your installation"));
|
|
do_async_done (decoder);
|
|
return FALSE;
|
|
}
|
|
could_not_link:
|
|
{
|
|
GST_ELEMENT_ERROR (decoder, CORE, NEGOTIATION,
|
|
(NULL), ("Can't link source to typefind element"));
|
|
gst_bin_remove (GST_BIN_CAST (decoder), typefind);
|
|
do_async_done (decoder);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static void
|
|
free_stream (gpointer value)
|
|
{
|
|
g_free (value);
|
|
}
|
|
|
|
/* remove source and all related elements */
|
|
static void
|
|
remove_source (GstURIDecodeBin * bin)
|
|
{
|
|
GstElement *source = bin->source;
|
|
|
|
if (source) {
|
|
GST_DEBUG_OBJECT (bin, "removing old src element");
|
|
gst_element_set_state (source, GST_STATE_NULL);
|
|
|
|
if (bin->src_np_sig_id) {
|
|
g_signal_handler_disconnect (source, bin->src_np_sig_id);
|
|
bin->src_np_sig_id = 0;
|
|
}
|
|
if (bin->src_nmp_sig_id) {
|
|
g_signal_handler_disconnect (source, bin->src_nmp_sig_id);
|
|
bin->src_nmp_sig_id = 0;
|
|
}
|
|
GST_OBJECT_LOCK (bin);
|
|
bin->source = NULL;
|
|
GST_OBJECT_UNLOCK (bin);
|
|
gst_bin_remove (GST_BIN_CAST (bin), source);
|
|
}
|
|
if (bin->queue) {
|
|
GST_DEBUG_OBJECT (bin, "removing old queue element");
|
|
gst_element_set_state (bin->queue, GST_STATE_NULL);
|
|
gst_bin_remove (GST_BIN_CAST (bin), bin->queue);
|
|
bin->queue = NULL;
|
|
}
|
|
if (bin->typefind) {
|
|
GST_DEBUG_OBJECT (bin, "removing old typefind element");
|
|
gst_element_set_state (bin->typefind, GST_STATE_NULL);
|
|
gst_bin_remove (GST_BIN_CAST (bin), bin->typefind);
|
|
bin->typefind = NULL;
|
|
}
|
|
if (bin->streams) {
|
|
g_hash_table_destroy (bin->streams);
|
|
bin->streams = NULL;
|
|
}
|
|
}
|
|
|
|
/* is called when a dynamic source element created a new pad. */
|
|
static gboolean
|
|
source_new_pad (GstElement * element, GstPad * pad, GstURIDecodeBin * bin)
|
|
{
|
|
GstElement *decoder;
|
|
GstCaps *rawcaps;
|
|
GstPad *sinkpad;
|
|
|
|
GST_URI_DECODE_BIN_LOCK (bin);
|
|
GST_DEBUG_OBJECT (bin, "Found new pad %s.%s in source element %s",
|
|
GST_DEBUG_PAD_NAME (pad), GST_ELEMENT_NAME (element));
|
|
|
|
g_object_get (bin, "caps", &rawcaps, NULL);
|
|
if (!rawcaps)
|
|
rawcaps = DEFAULT_CAPS;
|
|
|
|
/* if this is a pad with all raw caps, we can expose it.
|
|
* But if stream-topology needs to be posted, we need to
|
|
* plug a decodebin so it can build the topology for us to forward. */
|
|
if (!bin->post_stream_topology && has_raw_caps (pad, rawcaps)) {
|
|
/* it's all raw, create output pads. */
|
|
GST_URI_DECODE_BIN_UNLOCK (bin);
|
|
gst_caps_unref (rawcaps);
|
|
expose_decoded_pad (element, pad, bin);
|
|
return TRUE;
|
|
}
|
|
gst_caps_unref (rawcaps);
|
|
|
|
/* not raw, create decoder */
|
|
decoder = make_decoder (bin);
|
|
if (!decoder)
|
|
goto no_decodebin;
|
|
|
|
/* and link to decoder */
|
|
sinkpad = gst_element_get_static_pad (decoder, "sink");
|
|
if (gst_pad_link (pad, sinkpad) != GST_PAD_LINK_OK)
|
|
goto could_not_link;
|
|
gst_object_unref (sinkpad);
|
|
|
|
GST_DEBUG_OBJECT (bin, "linked decoder to new source pad");
|
|
|
|
gst_element_sync_state_with_parent (decoder);
|
|
GST_URI_DECODE_BIN_UNLOCK (bin);
|
|
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
no_decodebin:
|
|
{
|
|
/* error was posted */
|
|
GST_URI_DECODE_BIN_UNLOCK (bin);
|
|
return FALSE;
|
|
}
|
|
could_not_link:
|
|
{
|
|
gst_object_unref (sinkpad);
|
|
GST_ELEMENT_ERROR (bin, CORE, NEGOTIATION,
|
|
(NULL), ("Can't link source to decoder element"));
|
|
GST_URI_DECODE_BIN_UNLOCK (bin);
|
|
do_async_done (bin);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
is_live_source (GstElement * source)
|
|
{
|
|
GObjectClass *source_class = NULL;
|
|
gboolean is_live = FALSE;
|
|
GParamSpec *pspec;
|
|
|
|
source_class = G_OBJECT_GET_CLASS (source);
|
|
pspec = g_object_class_find_property (source_class, "is-live");
|
|
if (!pspec || G_PARAM_SPEC_VALUE_TYPE (pspec) != G_TYPE_BOOLEAN)
|
|
return FALSE;
|
|
|
|
g_object_get (G_OBJECT (source), "is-live", &is_live, NULL);
|
|
|
|
return is_live;
|
|
}
|
|
|
|
typedef struct
|
|
{
|
|
GstURIDecodeBin *decoder;
|
|
gboolean res;
|
|
} ExposeSourceData;
|
|
|
|
static gboolean
|
|
expose_source_pad (GstElement * element, GstPad * pad, ExposeSourceData * data)
|
|
{
|
|
data->res |= source_new_pad (element, pad, data->decoder);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* construct and run the source and decoder elements until we found
|
|
* all the streams or until a preroll queue has been filled.
|
|
*/
|
|
static gboolean
|
|
setup_source (GstURIDecodeBin * decoder)
|
|
{
|
|
gboolean res = TRUE;
|
|
gboolean is_raw, have_out, is_dynamic;
|
|
GstElement *source;
|
|
|
|
GST_DEBUG_OBJECT (decoder, "setup source");
|
|
|
|
/* delete old src */
|
|
remove_source (decoder);
|
|
|
|
decoder->pending = 0;
|
|
|
|
/* create and configure an element that can handle the uri */
|
|
source = gen_source_element (decoder);
|
|
GST_OBJECT_LOCK (decoder);
|
|
if (!(decoder->source = source)) {
|
|
GST_OBJECT_UNLOCK (decoder);
|
|
|
|
goto no_source;
|
|
}
|
|
GST_OBJECT_UNLOCK (decoder);
|
|
|
|
/* state will be merged later - if file is not found, error will be
|
|
* handled by the application right after. */
|
|
gst_bin_add (GST_BIN_CAST (decoder), decoder->source);
|
|
/* bin now has a ref, but the local reference is not counted */
|
|
g_object_unref (decoder->source);
|
|
|
|
/* notify of the new source used */
|
|
g_object_notify (G_OBJECT (decoder), "source");
|
|
|
|
if (is_live_source (decoder->source))
|
|
decoder->is_stream = FALSE;
|
|
|
|
/* remove the old decoders now, if any */
|
|
remove_decoders (decoder, FALSE);
|
|
|
|
/* stream admin setup */
|
|
decoder->streams = g_hash_table_new_full (NULL, NULL, NULL, free_stream);
|
|
|
|
if (gst_element_set_state (source,
|
|
GST_STATE_READY) != GST_STATE_CHANGE_SUCCESS)
|
|
goto state_fail;
|
|
|
|
/* see if the source element emits raw audio/video all by itself,
|
|
* if so, we can create streams for the pads and be done with it.
|
|
* Also check that is has source pads, if not, we assume it will
|
|
* do everything itself. */
|
|
if (!analyse_source (decoder, &is_raw, &have_out, &is_dynamic,
|
|
decoder->need_queue))
|
|
goto invalid_source;
|
|
|
|
if (is_raw) {
|
|
GST_DEBUG_OBJECT (decoder, "Source provides all raw data");
|
|
/* source provides raw data, we added the pads and we can now signal a
|
|
* no_more pads because we are done. */
|
|
gst_element_no_more_pads (GST_ELEMENT_CAST (decoder));
|
|
do_async_done (decoder);
|
|
return TRUE;
|
|
}
|
|
if (!have_out && !is_dynamic) {
|
|
GST_DEBUG_OBJECT (decoder, "Source has no output pads");
|
|
/* create a stream to indicate that this uri is handled by a self
|
|
* contained element. We are now done. */
|
|
add_element_stream (decoder->source, decoder);
|
|
return TRUE;
|
|
}
|
|
if (is_dynamic) {
|
|
GST_DEBUG_OBJECT (decoder, "Source has dynamic output pads");
|
|
/* connect a handler for the new-pad signal */
|
|
decoder->src_np_sig_id =
|
|
g_signal_connect (decoder->source, "pad-added",
|
|
G_CALLBACK (source_new_pad), decoder);
|
|
decoder->src_nmp_sig_id =
|
|
g_signal_connect (decoder->source, "no-more-pads",
|
|
G_CALLBACK (source_no_more_pads), decoder);
|
|
g_object_set_data (G_OBJECT (decoder->source), "pending",
|
|
GINT_TO_POINTER (1));
|
|
decoder->pending++;
|
|
} else {
|
|
if (decoder->is_stream) {
|
|
GST_DEBUG_OBJECT (decoder, "Setting up streaming");
|
|
/* do the stream things here */
|
|
if (!setup_streaming (decoder))
|
|
goto streaming_failed;
|
|
} else {
|
|
ExposeSourceData data = { decoder, FALSE };
|
|
|
|
GST_DEBUG_OBJECT (decoder, "Expose %" GST_PTR_FORMAT " srcpads",
|
|
decoder->source);
|
|
|
|
/* error message is posted if expose_source_pad fails */
|
|
gst_element_foreach_src_pad (decoder->source,
|
|
(GstElementForeachPadFunc) expose_source_pad, &data);
|
|
|
|
res = data.res;
|
|
}
|
|
}
|
|
return res;
|
|
|
|
/* ERRORS */
|
|
no_source:
|
|
{
|
|
/* error message was already posted */
|
|
return FALSE;
|
|
}
|
|
state_fail:
|
|
{
|
|
GST_ELEMENT_ERROR (decoder, CORE, FAILED,
|
|
(_("Source element can't be prepared")), (NULL));
|
|
return FALSE;
|
|
}
|
|
invalid_source:
|
|
{
|
|
GST_ELEMENT_ERROR (decoder, CORE, FAILED,
|
|
(_("Source element is invalid.")), (NULL));
|
|
return FALSE;
|
|
}
|
|
streaming_failed:
|
|
{
|
|
/* message was posted */
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static void
|
|
value_list_append_structure_list (GValue * list_val, GstStructure ** first,
|
|
GList * structure_list)
|
|
{
|
|
GList *l;
|
|
|
|
for (l = structure_list; l != NULL; l = l->next) {
|
|
GValue val = { 0, };
|
|
|
|
if (*first == NULL)
|
|
*first = gst_structure_copy ((GstStructure *) l->data);
|
|
|
|
g_value_init (&val, GST_TYPE_STRUCTURE);
|
|
g_value_take_boxed (&val, gst_structure_copy ((GstStructure *) l->data));
|
|
gst_value_list_append_value (list_val, &val);
|
|
g_value_unset (&val);
|
|
}
|
|
}
|
|
|
|
/* if it's a redirect message with multiple redirect locations we might
|
|
* want to pick a different 'best' location depending on the required
|
|
* bitrates and the connection speed */
|
|
static GstMessage *
|
|
handle_redirect_message (GstURIDecodeBin * dec, GstMessage * msg)
|
|
{
|
|
const GValue *locations_list, *location_val;
|
|
GstMessage *new_msg;
|
|
GstStructure *new_structure = NULL;
|
|
GList *l_good = NULL, *l_neutral = NULL, *l_bad = NULL;
|
|
GValue new_list = { 0, };
|
|
guint size, i;
|
|
const GstStructure *structure;
|
|
|
|
GST_DEBUG_OBJECT (dec, "redirect message: %" GST_PTR_FORMAT, msg);
|
|
GST_DEBUG_OBJECT (dec, "connection speed: %" G_GUINT64_FORMAT,
|
|
dec->connection_speed);
|
|
|
|
structure = gst_message_get_structure (msg);
|
|
if (dec->connection_speed == 0 || structure == NULL)
|
|
return msg;
|
|
|
|
locations_list = gst_structure_get_value (structure, "locations");
|
|
if (locations_list == NULL)
|
|
return msg;
|
|
|
|
size = gst_value_list_get_size (locations_list);
|
|
if (size < 2)
|
|
return msg;
|
|
|
|
/* maintain existing order as much as possible, just sort references
|
|
* with too high a bitrate to the end (the assumption being that if
|
|
* bitrates are given they are given for all interesting streams and
|
|
* that the you-need-at-least-version-xyz redirect has the same bitrate
|
|
* as the lowest referenced redirect alternative) */
|
|
for (i = 0; i < size; ++i) {
|
|
const GstStructure *s;
|
|
gint bitrate = 0;
|
|
|
|
location_val = gst_value_list_get_value (locations_list, i);
|
|
s = (const GstStructure *) g_value_get_boxed (location_val);
|
|
if (!gst_structure_get_int (s, "minimum-bitrate", &bitrate) || bitrate <= 0) {
|
|
GST_DEBUG_OBJECT (dec, "no bitrate: %" GST_PTR_FORMAT, s);
|
|
l_neutral = g_list_append (l_neutral, (gpointer) s);
|
|
} else if (bitrate > dec->connection_speed) {
|
|
GST_DEBUG_OBJECT (dec, "bitrate too high: %" GST_PTR_FORMAT, s);
|
|
l_bad = g_list_append (l_bad, (gpointer) s);
|
|
} else if (bitrate <= dec->connection_speed) {
|
|
GST_DEBUG_OBJECT (dec, "bitrate OK: %" GST_PTR_FORMAT, s);
|
|
l_good = g_list_append (l_good, (gpointer) s);
|
|
}
|
|
}
|
|
|
|
g_value_init (&new_list, GST_TYPE_LIST);
|
|
value_list_append_structure_list (&new_list, &new_structure, l_good);
|
|
value_list_append_structure_list (&new_list, &new_structure, l_neutral);
|
|
value_list_append_structure_list (&new_list, &new_structure, l_bad);
|
|
gst_structure_take_value (new_structure, "locations", &new_list);
|
|
|
|
g_list_free (l_good);
|
|
g_list_free (l_neutral);
|
|
g_list_free (l_bad);
|
|
|
|
new_msg = gst_message_new_element (msg->src, new_structure);
|
|
gst_message_unref (msg);
|
|
|
|
GST_DEBUG_OBJECT (dec, "new redirect message: %" GST_PTR_FORMAT, new_msg);
|
|
return new_msg;
|
|
}
|
|
|
|
static GstMessage *
|
|
make_topology_message (GstURIDecodeBin * dec)
|
|
{
|
|
GSList *tmp;
|
|
GstStructure *aggregated_topology = NULL;
|
|
GValue list = G_VALUE_INIT;
|
|
GstCaps *caps = NULL;
|
|
gchar *name, *proto;
|
|
|
|
aggregated_topology = gst_structure_new_empty ("stream-topology");
|
|
g_value_init (&list, GST_TYPE_LIST);
|
|
|
|
for (tmp = dec->decodebins; tmp; tmp = tmp->next) {
|
|
GValue item = G_VALUE_INIT;
|
|
GstStructure *dec_topology =
|
|
g_object_get_data (G_OBJECT (tmp->data), "uridecodebin-topology");
|
|
|
|
g_value_init (&item, GST_TYPE_STRUCTURE);
|
|
gst_value_set_structure (&item, dec_topology);
|
|
gst_value_list_append_and_take_value (&list, &item);
|
|
}
|
|
|
|
gst_structure_take_value (aggregated_topology, "next", &list);
|
|
|
|
/* This is a bit wacky, but that's the best way I can find to express
|
|
* uridecodebin 'caps' as subsequently shown by gst-discoverer */
|
|
proto = gst_uri_get_protocol (dec->uri);
|
|
name = g_strdup_printf ("application/%s", proto);
|
|
g_free (proto);
|
|
|
|
caps = gst_caps_new_empty_simple (name);
|
|
g_free (name);
|
|
|
|
gst_structure_set (aggregated_topology, "caps", GST_TYPE_CAPS, caps, NULL);
|
|
gst_caps_unref (caps);
|
|
|
|
return gst_message_new_element (GST_OBJECT (dec), aggregated_topology);
|
|
}
|
|
|
|
static void
|
|
check_topology (gpointer data, gpointer user_data)
|
|
{
|
|
gboolean *has_topo = user_data;
|
|
|
|
if (g_object_get_data (data, "uridecodebin-topology") == NULL)
|
|
*has_topo = FALSE;
|
|
}
|
|
|
|
static void
|
|
handle_message (GstBin * bin, GstMessage * msg)
|
|
{
|
|
GstURIDecodeBin *dec = GST_URI_DECODE_BIN (bin);
|
|
|
|
switch (GST_MESSAGE_TYPE (msg)) {
|
|
case GST_MESSAGE_ELEMENT:{
|
|
|
|
if (gst_message_has_name (msg, "stream-topology")) {
|
|
GstElement *element = GST_ELEMENT (GST_MESSAGE_SRC (msg));
|
|
gboolean has_all_topo = TRUE;
|
|
|
|
if (dec->pending || (dec->decodebins && dec->decodebins->next != NULL)) {
|
|
const GstStructure *structure;
|
|
|
|
/* If there is only one, just let it through, so this case is if
|
|
* there is more than one.
|
|
*/
|
|
|
|
structure = gst_message_get_structure (msg);
|
|
|
|
g_object_set_data_full (G_OBJECT (element), "uridecodebin-topology",
|
|
gst_structure_copy (structure),
|
|
(GDestroyNotify) gst_structure_free);
|
|
|
|
gst_message_unref (msg);
|
|
msg = NULL;
|
|
|
|
g_slist_foreach (dec->decodebins, check_topology, &has_all_topo);
|
|
if (has_all_topo)
|
|
msg = make_topology_message (dec);
|
|
}
|
|
} else if (gst_message_has_name (msg, "redirect")) {
|
|
/* sort redirect messages based on the connection speed. This simplifies
|
|
* the user of this element as it can in most cases just pick the first item
|
|
* of the sorted list as a good redirection candidate. It can of course
|
|
* choose something else from the list if it has a better way. */
|
|
msg = handle_redirect_message (dec, msg);
|
|
}
|
|
break;
|
|
}
|
|
case GST_MESSAGE_ERROR:{
|
|
GError *err = NULL;
|
|
|
|
/* Filter out missing plugin error messages from the decodebins. Only if
|
|
* all decodebins exposed no streams we will report a missing plugin
|
|
* error from no_more_pads_full()
|
|
*/
|
|
gst_message_parse_error (msg, &err, NULL);
|
|
if (g_error_matches (err, GST_CORE_ERROR, GST_CORE_ERROR_MISSING_PLUGIN)
|
|
|| g_error_matches (err, GST_STREAM_ERROR,
|
|
GST_STREAM_ERROR_CODEC_NOT_FOUND)) {
|
|
dec->missing_plugin_errors =
|
|
g_list_prepend (dec->missing_plugin_errors, gst_message_ref (msg));
|
|
|
|
no_more_pads_full (GST_ELEMENT (GST_MESSAGE_SRC (msg)), FALSE,
|
|
GST_URI_DECODE_BIN (bin));
|
|
gst_message_unref (msg);
|
|
msg = NULL;
|
|
}
|
|
g_clear_error (&err);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (msg)
|
|
GST_BIN_CLASS (parent_class)->handle_message (bin, msg);
|
|
}
|
|
|
|
/* generic struct passed to all query fold methods
|
|
* FIXME, move to core.
|
|
*/
|
|
typedef struct
|
|
{
|
|
GstQuery *query;
|
|
gint64 min;
|
|
gint64 max;
|
|
gboolean seekable;
|
|
gboolean live;
|
|
} QueryFold;
|
|
|
|
typedef void (*QueryInitFunction) (GstURIDecodeBin * dec, QueryFold * fold);
|
|
typedef void (*QueryDoneFunction) (GstURIDecodeBin * dec, QueryFold * fold);
|
|
|
|
/* for duration/position we collect all durations/positions and take
|
|
* the MAX of all valid results */
|
|
static void
|
|
decoder_query_init (GstURIDecodeBin * dec, QueryFold * fold)
|
|
{
|
|
fold->min = 0;
|
|
fold->max = -1;
|
|
fold->seekable = TRUE;
|
|
fold->live = 0;
|
|
}
|
|
|
|
static gboolean
|
|
decoder_query_duration_fold (const GValue * item, GValue * ret,
|
|
QueryFold * fold)
|
|
{
|
|
GstPad *pad = g_value_get_object (item);
|
|
|
|
if (gst_pad_query (pad, fold->query)) {
|
|
gint64 duration;
|
|
|
|
g_value_set_boolean (ret, TRUE);
|
|
|
|
gst_query_parse_duration (fold->query, NULL, &duration);
|
|
|
|
GST_DEBUG_OBJECT (pad, "got duration %" G_GINT64_FORMAT, duration);
|
|
|
|
if (duration > fold->max)
|
|
fold->max = duration;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
decoder_query_duration_done (GstURIDecodeBin * dec, QueryFold * fold)
|
|
{
|
|
GstFormat format;
|
|
|
|
gst_query_parse_duration (fold->query, &format, NULL);
|
|
/* store max in query result */
|
|
gst_query_set_duration (fold->query, format, fold->max);
|
|
|
|
GST_DEBUG ("max duration %" G_GINT64_FORMAT, fold->max);
|
|
}
|
|
|
|
static gboolean
|
|
decoder_query_position_fold (const GValue * item, GValue * ret,
|
|
QueryFold * fold)
|
|
{
|
|
GstPad *pad = g_value_get_object (item);
|
|
|
|
if (gst_pad_query (pad, fold->query)) {
|
|
gint64 position;
|
|
|
|
g_value_set_boolean (ret, TRUE);
|
|
|
|
gst_query_parse_position (fold->query, NULL, &position);
|
|
|
|
GST_DEBUG_OBJECT (pad, "got position %" G_GINT64_FORMAT, position);
|
|
|
|
if (position > fold->max)
|
|
fold->max = position;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
decoder_query_position_done (GstURIDecodeBin * dec, QueryFold * fold)
|
|
{
|
|
GstFormat format;
|
|
|
|
gst_query_parse_position (fold->query, &format, NULL);
|
|
/* store max in query result */
|
|
gst_query_set_position (fold->query, format, fold->max);
|
|
|
|
GST_DEBUG_OBJECT (dec, "max position %" G_GINT64_FORMAT, fold->max);
|
|
}
|
|
|
|
static gboolean
|
|
decoder_query_latency_fold (const GValue * item, GValue * ret, QueryFold * fold)
|
|
{
|
|
GstPad *pad = g_value_get_object (item);
|
|
|
|
if (gst_pad_query (pad, fold->query)) {
|
|
GstClockTime min, max;
|
|
gboolean live;
|
|
|
|
gst_query_parse_latency (fold->query, &live, &min, &max);
|
|
|
|
GST_DEBUG_OBJECT (pad,
|
|
"got latency min %" GST_TIME_FORMAT ", max %" GST_TIME_FORMAT
|
|
", live %d", GST_TIME_ARGS (min), GST_TIME_ARGS (max), live);
|
|
|
|
if (live) {
|
|
/* for the combined latency we collect the MAX of all min latencies and
|
|
* the MIN of all max latencies */
|
|
if (min > fold->min)
|
|
fold->min = min;
|
|
if (fold->max == -1)
|
|
fold->max = max;
|
|
else if (max < fold->max)
|
|
fold->max = max;
|
|
|
|
fold->live = TRUE;
|
|
}
|
|
} else {
|
|
GST_LOG_OBJECT (pad, "latency query failed");
|
|
g_value_set_boolean (ret, FALSE);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
decoder_query_latency_done (GstURIDecodeBin * dec, QueryFold * fold)
|
|
{
|
|
/* store max in query result */
|
|
gst_query_set_latency (fold->query, fold->live, fold->min, fold->max);
|
|
|
|
GST_DEBUG_OBJECT (dec,
|
|
"latency min %" GST_TIME_FORMAT ", max %" GST_TIME_FORMAT
|
|
", live %d", GST_TIME_ARGS (fold->min), GST_TIME_ARGS (fold->max),
|
|
fold->live);
|
|
}
|
|
|
|
/* we are seekable if all srcpads are seekable */
|
|
static gboolean
|
|
decoder_query_seeking_fold (const GValue * item, GValue * ret, QueryFold * fold)
|
|
{
|
|
GstPad *pad = g_value_get_object (item);
|
|
|
|
if (gst_pad_query (pad, fold->query)) {
|
|
gboolean seekable;
|
|
|
|
g_value_set_boolean (ret, TRUE);
|
|
gst_query_parse_seeking (fold->query, NULL, &seekable, NULL, NULL);
|
|
|
|
GST_DEBUG_OBJECT (pad, "got seekable %d", seekable);
|
|
|
|
if (fold->seekable)
|
|
fold->seekable = seekable;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
decoder_query_seeking_done (GstURIDecodeBin * dec, QueryFold * fold)
|
|
{
|
|
GstFormat format;
|
|
|
|
gst_query_parse_seeking (fold->query, &format, NULL, NULL, NULL);
|
|
gst_query_set_seeking (fold->query, format, fold->seekable, 0, -1);
|
|
|
|
GST_DEBUG_OBJECT (dec, "seekable %d", fold->seekable);
|
|
}
|
|
|
|
/* generic fold, return first valid result */
|
|
static gboolean
|
|
decoder_query_generic_fold (const GValue * item, GValue * ret, QueryFold * fold)
|
|
{
|
|
GstPad *pad = g_value_get_object (item);
|
|
gboolean res;
|
|
|
|
if ((res = gst_pad_query (pad, fold->query))) {
|
|
g_value_set_boolean (ret, TRUE);
|
|
GST_DEBUG_OBJECT (pad, "answered query %p", fold->query);
|
|
}
|
|
|
|
/* and stop as soon as we have a valid result */
|
|
return !res;
|
|
}
|
|
|
|
|
|
/* we're a bin, the default query handler iterates sink elements, which we don't
|
|
* have normally. We should just query all source pads.
|
|
*/
|
|
static gboolean
|
|
gst_uri_decode_bin_query (GstElement * element, GstQuery * query)
|
|
{
|
|
GstURIDecodeBin *decoder;
|
|
gboolean res = FALSE;
|
|
GstIterator *iter;
|
|
GstIteratorFoldFunction fold_func;
|
|
QueryInitFunction fold_init = NULL;
|
|
QueryDoneFunction fold_done = NULL;
|
|
QueryFold fold_data;
|
|
GValue ret = { 0 };
|
|
gboolean default_ret = FALSE;
|
|
|
|
decoder = GST_URI_DECODE_BIN (element);
|
|
|
|
switch (GST_QUERY_TYPE (query)) {
|
|
case GST_QUERY_DURATION:
|
|
/* iterate and collect durations */
|
|
fold_func = (GstIteratorFoldFunction) decoder_query_duration_fold;
|
|
fold_init = decoder_query_init;
|
|
fold_done = decoder_query_duration_done;
|
|
break;
|
|
case GST_QUERY_POSITION:
|
|
/* iterate and collect durations */
|
|
fold_func = (GstIteratorFoldFunction) decoder_query_position_fold;
|
|
fold_init = decoder_query_init;
|
|
fold_done = decoder_query_position_done;
|
|
break;
|
|
case GST_QUERY_LATENCY:
|
|
/* iterate and collect durations */
|
|
fold_func = (GstIteratorFoldFunction) decoder_query_latency_fold;
|
|
fold_init = decoder_query_init;
|
|
fold_done = decoder_query_latency_done;
|
|
default_ret = TRUE;
|
|
break;
|
|
case GST_QUERY_SEEKING:
|
|
/* iterate and collect durations */
|
|
fold_func = (GstIteratorFoldFunction) decoder_query_seeking_fold;
|
|
fold_init = decoder_query_init;
|
|
fold_done = decoder_query_seeking_done;
|
|
break;
|
|
default:
|
|
fold_func = (GstIteratorFoldFunction) decoder_query_generic_fold;
|
|
break;
|
|
}
|
|
|
|
fold_data.query = query;
|
|
|
|
g_value_init (&ret, G_TYPE_BOOLEAN);
|
|
g_value_set_boolean (&ret, default_ret);
|
|
|
|
iter = gst_element_iterate_src_pads (element);
|
|
GST_DEBUG_OBJECT (element, "Sending query %p (type %d) to src pads",
|
|
query, GST_QUERY_TYPE (query));
|
|
|
|
if (fold_init)
|
|
fold_init (decoder, &fold_data);
|
|
|
|
while (TRUE) {
|
|
GstIteratorResult ires;
|
|
|
|
ires = gst_iterator_fold (iter, fold_func, &ret, &fold_data);
|
|
|
|
switch (ires) {
|
|
case GST_ITERATOR_RESYNC:
|
|
gst_iterator_resync (iter);
|
|
if (fold_init)
|
|
fold_init (decoder, &fold_data);
|
|
g_value_set_boolean (&ret, default_ret);
|
|
break;
|
|
case GST_ITERATOR_OK:
|
|
case GST_ITERATOR_DONE:
|
|
res = g_value_get_boolean (&ret);
|
|
if (fold_done != NULL && res)
|
|
fold_done (decoder, &fold_data);
|
|
goto done;
|
|
default:
|
|
res = FALSE;
|
|
goto done;
|
|
}
|
|
}
|
|
done:
|
|
gst_iterator_free (iter);
|
|
|
|
return res;
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_uri_decode_bin_change_state (GstElement * element,
|
|
GstStateChange transition)
|
|
{
|
|
GstStateChangeReturn ret;
|
|
GstURIDecodeBin *decoder;
|
|
|
|
decoder = GST_URI_DECODE_BIN (element);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
do_async_start (decoder);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
if (ret == GST_STATE_CHANGE_FAILURE)
|
|
goto setup_failed;
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
GST_DEBUG ("ready to paused");
|
|
if (!setup_source (decoder))
|
|
goto source_failed;
|
|
|
|
ret = GST_STATE_CHANGE_ASYNC;
|
|
|
|
/* And now sync the states of everything we added */
|
|
g_slist_foreach (decoder->decodebins,
|
|
(GFunc) gst_element_sync_state_with_parent, NULL);
|
|
if (decoder->typefind)
|
|
ret = gst_element_set_state (decoder->typefind, GST_STATE_PAUSED);
|
|
if (ret == GST_STATE_CHANGE_FAILURE)
|
|
goto setup_failed;
|
|
if (decoder->queue)
|
|
ret = gst_element_set_state (decoder->queue, GST_STATE_PAUSED);
|
|
if (ret == GST_STATE_CHANGE_FAILURE)
|
|
goto setup_failed;
|
|
if (decoder->source)
|
|
ret = gst_element_set_state (decoder->source, GST_STATE_PAUSED);
|
|
if (ret == GST_STATE_CHANGE_FAILURE)
|
|
goto setup_failed;
|
|
if (ret == GST_STATE_CHANGE_SUCCESS)
|
|
ret = GST_STATE_CHANGE_ASYNC;
|
|
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
GST_DEBUG ("paused to ready");
|
|
remove_decoders (decoder, FALSE);
|
|
remove_source (decoder);
|
|
do_async_done (decoder);
|
|
g_list_free_full (decoder->missing_plugin_errors,
|
|
(GDestroyNotify) gst_message_unref);
|
|
decoder->missing_plugin_errors = NULL;
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_NULL:
|
|
GST_DEBUG ("ready to null");
|
|
remove_decoders (decoder, TRUE);
|
|
remove_source (decoder);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (ret == GST_STATE_CHANGE_NO_PREROLL)
|
|
do_async_done (decoder);
|
|
|
|
return ret;
|
|
|
|
/* ERRORS */
|
|
source_failed:
|
|
{
|
|
do_async_done (decoder);
|
|
return GST_STATE_CHANGE_FAILURE;
|
|
}
|
|
setup_failed:
|
|
{
|
|
/* clean up leftover groups */
|
|
do_async_done (decoder);
|
|
return GST_STATE_CHANGE_FAILURE;
|
|
}
|
|
}
|