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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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2812 lines
86 KiB
C
2812 lines
86 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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst-i18n-plugin.h>
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#include <string.h>
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#include "gstplaybasebin.h"
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#include "gststreamselector.h"
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#include "gstplay-marshal.h"
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#include <gst/pbutils/pbutils.h>
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GST_DEBUG_CATEGORY_STATIC (gst_play_base_bin_debug);
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#define GST_CAT_DEFAULT gst_play_base_bin_debug
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#define DEFAULT_QUEUE_SIZE (3 * GST_SECOND)
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#define DEFAULT_QUEUE_MIN_THRESHOLD ((DEFAULT_QUEUE_SIZE * 30) / 100)
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#define DEFAULT_QUEUE_THRESHOLD ((DEFAULT_QUEUE_SIZE * 95) / 100)
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#define DEFAULT_CONNECTION_SPEED 0
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#define GROUP_LOCK(pbb) g_mutex_lock (pbb->group_lock)
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#define GROUP_UNLOCK(pbb) g_mutex_unlock (pbb->group_lock)
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#define GROUP_WAIT(pbb) g_cond_wait (pbb->group_cond, pbb->group_lock)
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#define GROUP_SIGNAL(pbb) g_cond_signal (pbb->group_cond)
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/* props */
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enum
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{
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ARG_0,
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ARG_URI,
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ARG_SUBURI,
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ARG_QUEUE_SIZE,
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ARG_QUEUE_THRESHOLD,
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ARG_QUEUE_MIN_THRESHOLD,
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ARG_NSTREAMS,
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ARG_STREAMINFO,
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ARG_STREAMINFO_VALUES,
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ARG_SOURCE,
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ARG_VIDEO,
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ARG_AUDIO,
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ARG_TEXT,
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ARG_SUBTITLE_ENCODING,
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ARG_CONNECTION_SPEED
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};
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static void gst_play_base_bin_class_init (GstPlayBaseBinClass * klass);
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static void gst_play_base_bin_init (GstPlayBaseBin * play_base_bin);
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static void gst_play_base_bin_dispose (GObject * object);
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static void gst_play_base_bin_finalize (GObject * object);
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static void gst_play_base_bin_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * spec);
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static void gst_play_base_bin_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * spec);
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static void gst_play_base_bin_handle_message_func (GstBin * bin,
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GstMessage * msg);
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static GstStateChangeReturn gst_play_base_bin_change_state (GstElement *
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element, GstStateChange transition);
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static const GList *gst_play_base_bin_get_streaminfo (GstPlayBaseBin * bin);
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static GValueArray *gst_play_base_bin_get_streaminfo_value_array (GstPlayBaseBin
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* play_base_bin);
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static void preroll_remove_overrun (GstElement * element,
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GstPlayBaseBin * play_base_bin);
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static void queue_remove_probe (GstElement * queue, GstPlayBaseBin
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* play_base_bin);
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static GstElement *make_decoder (GstPlayBaseBin * play_base_bin);
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static gboolean has_all_raw_caps (GstPad * pad, gboolean * all_raw);
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static gboolean prepare_output (GstPlayBaseBin * play_base_bin);
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static void set_active_source (GstPlayBaseBin * play_base_bin,
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GstStreamType type, gint source_num);
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static gboolean probe_triggered (GstPad * pad, GstEvent * event,
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gpointer user_data);
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static void setup_substreams (GstPlayBaseBin * play_base_bin);
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static GstPipelineClass *parent_class;
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/*
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* GObject playbasebin wrappers.
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*/
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GType
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gst_play_base_bin_get_type (void)
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{
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static GType gst_play_base_bin_type = 0;
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if (!gst_play_base_bin_type) {
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static const GTypeInfo gst_play_base_bin_info = {
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sizeof (GstPlayBaseBinClass),
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NULL,
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NULL,
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(GClassInitFunc) gst_play_base_bin_class_init,
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NULL,
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NULL,
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sizeof (GstPlayBaseBin),
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0,
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(GInstanceInitFunc) gst_play_base_bin_init,
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NULL
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};
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gst_play_base_bin_type = g_type_register_static (GST_TYPE_PIPELINE,
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"GstPlayBaseBin", &gst_play_base_bin_info, 0);
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}
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return gst_play_base_bin_type;
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}
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static void
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gst_play_base_bin_class_init (GstPlayBaseBinClass * klass)
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{
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GObjectClass *gobject_klass;
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GstElementClass *gstelement_klass;
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GstBinClass *gstbin_klass;
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gobject_klass = (GObjectClass *) klass;
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gstelement_klass = (GstElementClass *) klass;
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gstbin_klass = (GstBinClass *) klass;
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parent_class = g_type_class_peek_parent (klass);
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gobject_klass->set_property = gst_play_base_bin_set_property;
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gobject_klass->get_property = gst_play_base_bin_get_property;
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g_object_class_install_property (gobject_klass, ARG_URI,
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g_param_spec_string ("uri", "URI", "URI of the media to play",
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NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_klass, ARG_SUBURI,
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g_param_spec_string ("suburi", ".sub-URI", "Optional URI of a subtitle",
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NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_klass, ARG_QUEUE_SIZE,
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g_param_spec_uint64 ("queue-size", "Queue size",
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"Size of internal queues in nanoseconds", 0, G_MAXINT64,
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DEFAULT_QUEUE_SIZE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_klass, ARG_QUEUE_THRESHOLD,
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g_param_spec_uint64 ("queue-threshold", "Queue threshold",
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"Buffering threshold of internal queues in nanoseconds", 0,
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G_MAXINT64, DEFAULT_QUEUE_THRESHOLD,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_klass, ARG_QUEUE_MIN_THRESHOLD,
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g_param_spec_uint64 ("queue-min-threshold", "Queue min threshold",
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"Buffering low threshold of internal queues in nanoseconds", 0,
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G_MAXINT64, DEFAULT_QUEUE_MIN_THRESHOLD,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_klass, ARG_NSTREAMS,
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g_param_spec_int ("nstreams", "NStreams", "number of streams",
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0, G_MAXINT, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_klass, ARG_STREAMINFO,
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g_param_spec_pointer ("stream-info", "Stream info", "List of streaminfo",
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G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_klass, ARG_STREAMINFO_VALUES,
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g_param_spec_value_array ("stream-info-value-array",
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"StreamInfo GValueArray", "value array of streaminfo",
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g_param_spec_object ("streaminfo", "StreamInfo", "Streaminfo object",
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GST_TYPE_STREAM_INFO, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS),
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G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_klass, ARG_SOURCE,
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g_param_spec_object ("source", "Source", "Source element",
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GST_TYPE_ELEMENT, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_klass, ARG_VIDEO,
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g_param_spec_int ("current-video", "Current video",
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"Currently playing video stream (-1 = none)",
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-1, G_MAXINT, -1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_klass, ARG_AUDIO,
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g_param_spec_int ("current-audio", "Current audio",
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"Currently playing audio stream (-1 = none)",
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-1, G_MAXINT, -1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_klass, ARG_TEXT,
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g_param_spec_int ("current-text", "Current text",
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"Currently playing text stream (-1 = none)",
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-1, G_MAXINT, -1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_klass, ARG_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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/**
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* GstPlayBaseBin:connection-speed
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*
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* Network connection speed in kbps (0 = unknown)
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* <note><simpara>
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* Since version 0.10.10 in #GstPlayBin, at 0.10.15 moved to #GstPlayBaseBin
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* </simpara></note>
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*
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* Since: 0.10.10
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*/
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g_object_class_install_property (gobject_klass, ARG_CONNECTION_SPEED,
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g_param_spec_uint ("connection-speed", "Connection Speed",
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"Network connection speed in kbps (0 = unknown)",
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0, G_MAXUINT, DEFAULT_CONNECTION_SPEED,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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GST_DEBUG_CATEGORY_INIT (gst_play_base_bin_debug, "playbasebin", 0,
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"playbasebin");
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gobject_klass->dispose = gst_play_base_bin_dispose;
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gobject_klass->finalize = gst_play_base_bin_finalize;
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gstbin_klass->handle_message =
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GST_DEBUG_FUNCPTR (gst_play_base_bin_handle_message_func);
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gstelement_klass->change_state =
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GST_DEBUG_FUNCPTR (gst_play_base_bin_change_state);
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}
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static void
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gst_play_base_bin_init (GstPlayBaseBin * play_base_bin)
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{
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play_base_bin->uri = NULL;
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play_base_bin->suburi = NULL;
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play_base_bin->need_rebuild = TRUE;
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play_base_bin->is_stream = FALSE;
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play_base_bin->source = NULL;
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play_base_bin->decoders = NULL;
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play_base_bin->subtitle = NULL;
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play_base_bin->subencoding = NULL;
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play_base_bin->subtitle_elements = NULL;
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play_base_bin->sub_lock = g_mutex_new ();
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play_base_bin->group_lock = g_mutex_new ();
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play_base_bin->group_cond = g_cond_new ();
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play_base_bin->building_group = NULL;
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play_base_bin->queued_groups = NULL;
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play_base_bin->queue_size = DEFAULT_QUEUE_SIZE;
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play_base_bin->queue_threshold = DEFAULT_QUEUE_THRESHOLD;
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play_base_bin->queue_min_threshold = DEFAULT_QUEUE_MIN_THRESHOLD;
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play_base_bin->connection_speed = DEFAULT_CONNECTION_SPEED;
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}
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static void
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gst_play_base_bin_dispose (GObject * object)
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{
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GstPlayBaseBin *play_base_bin;
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play_base_bin = GST_PLAY_BASE_BIN (object);
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g_free (play_base_bin->uri);
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play_base_bin->uri = NULL;
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g_free (play_base_bin->suburi);
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play_base_bin->suburi = NULL;
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g_free (play_base_bin->subencoding);
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play_base_bin->subencoding = NULL;
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if (play_base_bin->subtitle_elements) {
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g_slist_free (play_base_bin->subtitle_elements);
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play_base_bin->subtitle_elements = NULL;
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}
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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gst_play_base_bin_finalize (GObject * object)
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{
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GstPlayBaseBin *play_base_bin = GST_PLAY_BASE_BIN (object);
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g_mutex_free (play_base_bin->group_lock);
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g_cond_free (play_base_bin->group_cond);
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g_mutex_free (play_base_bin->sub_lock);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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/*
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* playbasebingroup stuff.
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*/
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static GstPlayBaseGroup *
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group_create (GstPlayBaseBin * play_base_bin)
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{
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GstPlayBaseGroup *group;
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group = g_new0 (GstPlayBaseGroup, 1);
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group->bin = play_base_bin;
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group->streaminfo_value_array = g_value_array_new (0);
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GST_DEBUG_OBJECT (play_base_bin, "created new group %p", group);
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return group;
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}
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/*
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* Gets the currently playing group.
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*
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* Callers must have group-lock held when calling this.
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*/
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static GstPlayBaseGroup *
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get_active_group (GstPlayBaseBin * play_base_bin)
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{
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GstPlayBaseGroup *group = NULL;
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if (play_base_bin->queued_groups)
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group = play_base_bin->queued_groups->data;
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return group;
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}
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/*
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* get the group used for discovering the different streams.
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* This function creates a group is there is none.
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*
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* Callers must have group-lock held when calling this.
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*/
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static GstPlayBaseGroup *
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get_building_group (GstPlayBaseBin * play_base_bin)
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{
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GstPlayBaseGroup *group;
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group = play_base_bin->building_group;
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if (group == NULL) {
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group = group_create (play_base_bin);
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play_base_bin->building_group = group;
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}
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return group;
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}
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/*
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* Callers must have lock held when calling this!
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*/
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static void
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group_destroy (GstPlayBaseGroup * group)
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{
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GstPlayBaseBin *play_base_bin = group->bin;
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gint n;
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GST_LOG ("removing group %p", group);
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/* remove the preroll queues */
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for (n = 0; n < NUM_TYPES; n++) {
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GstElement *element = group->type[n].preroll;
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GstElement *fakesrc;
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GstElement *sel;
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const GList *item;
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if (!element)
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continue;
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sel = group->type[n].selector;
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/* remove any fakesrc elements for this preroll element */
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for (item = sel->pads; item != NULL; item = item->next) {
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GstPad *pad = GST_PAD (item->data);
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guint sig_id;
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if (GST_PAD_DIRECTION (pad) != GST_PAD_SINK)
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continue;
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sig_id =
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GPOINTER_TO_INT (g_object_get_data (G_OBJECT (pad), "unlinked_id"));
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if (sig_id != 0) {
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GST_LOG ("removing unlink signal %s:%s", GST_DEBUG_PAD_NAME (pad));
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g_signal_handler_disconnect (G_OBJECT (pad), sig_id);
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g_object_set_data (G_OBJECT (pad), "unlinked_id", GINT_TO_POINTER (0));
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}
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fakesrc = (GstElement *) g_object_get_data (G_OBJECT (pad), "fakesrc");
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if (fakesrc != NULL) {
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GST_LOG ("removing fakesrc from %s:%s",
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GST_PAD_NAME (pad), GST_ELEMENT_NAME (GST_PAD_PARENT (pad)));
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gst_element_set_state (fakesrc, GST_STATE_NULL);
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gst_bin_remove (GST_BIN_CAST (play_base_bin), fakesrc);
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}
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}
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/* if the group is currently being played, we have to remove the element
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* from the thread */
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gst_element_set_state (element, GST_STATE_NULL);
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gst_element_set_state (group->type[n].selector, GST_STATE_NULL);
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GST_LOG ("removing preroll element %s", GST_ELEMENT_NAME (element));
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gst_bin_remove (group->type[n].bin, element);
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gst_bin_remove (group->type[n].bin, group->type[n].selector);
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group->type[n].preroll = NULL;
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group->type[n].selector = NULL;
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group->type[n].bin = NULL;
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}
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/* free the streaminfo too */
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g_list_foreach (group->streaminfo, (GFunc) g_object_unref, NULL);
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g_list_free (group->streaminfo);
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g_value_array_free (group->streaminfo_value_array);
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g_free (group);
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}
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/*
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* is called when the current building group is completely finished
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* and ready for playback
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*
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* This function grabs lock, so take care when calling.
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*/
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static void
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group_commit (GstPlayBaseBin * play_base_bin, gboolean fatal, gboolean subtitle)
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{
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GstPlayBaseGroup *group;
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gboolean had_active_group;
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GROUP_LOCK (play_base_bin);
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group = play_base_bin->building_group;
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had_active_group = (get_active_group (play_base_bin) != NULL);
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GST_DEBUG_OBJECT (play_base_bin, "commit group %p, had active %d",
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group, had_active_group);
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/* if an element signalled a no-more-pads after we stopped due
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* to preroll, the group is NULL. This is not an error */
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if (group == NULL) {
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if (!fatal) {
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GROUP_UNLOCK (play_base_bin);
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return;
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} else {
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GST_DEBUG_OBJECT (play_base_bin, "Group loading failed, bailing out");
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}
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} else {
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if (!subtitle) {
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gint n;
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GST_DEBUG_OBJECT (play_base_bin, "group %p done", group);
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play_base_bin->queued_groups =
|
|
g_list_append (play_base_bin->queued_groups, group);
|
|
|
|
play_base_bin->building_group = NULL;
|
|
|
|
/* remove signals. We don't want anymore signals from the preroll
|
|
* elements at this stage. */
|
|
for (n = 0; n < NUM_TYPES; n++) {
|
|
GstElement *element = group->type[n].preroll;
|
|
|
|
if (!element)
|
|
continue;
|
|
|
|
preroll_remove_overrun (element, play_base_bin);
|
|
/* if overrun is removed, probe alse has to be removed */
|
|
queue_remove_probe (element, play_base_bin);
|
|
}
|
|
} else {
|
|
/* this is a special subtitle bin, we don't commit the group but
|
|
* mark the subtitles as detected before we signal. */
|
|
GST_DEBUG_OBJECT (play_base_bin, "marking subtitle bin as complete");
|
|
play_base_bin->subtitle_done = TRUE;
|
|
}
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (play_base_bin, "signal group done");
|
|
GROUP_SIGNAL (play_base_bin);
|
|
GST_DEBUG_OBJECT (play_base_bin, "signaled group done");
|
|
|
|
if (!subtitle && !had_active_group) {
|
|
if (!prepare_output (play_base_bin)) {
|
|
GROUP_UNLOCK (play_base_bin);
|
|
return;
|
|
}
|
|
|
|
setup_substreams (play_base_bin);
|
|
GST_DEBUG_OBJECT (play_base_bin, "Emitting signal");
|
|
GST_PLAY_BASE_BIN_GET_CLASS (play_base_bin)->setup_output_pads
|
|
(play_base_bin, group);
|
|
GST_DEBUG_OBJECT (play_base_bin, "done");
|
|
|
|
GROUP_UNLOCK (play_base_bin);
|
|
|
|
g_object_notify (G_OBJECT (play_base_bin), "stream-info");
|
|
} else {
|
|
GROUP_UNLOCK (play_base_bin);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* check if there are streams in the group that are not muted
|
|
*
|
|
* Callers must have group-lock held when calling this.
|
|
*/
|
|
static gboolean
|
|
group_is_muted (GstPlayBaseGroup * group)
|
|
{
|
|
gint n;
|
|
|
|
for (n = 0; n < NUM_TYPES; n++) {
|
|
if (group->type[n].preroll && !group->type[n].done)
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* Buffer/cache checking.
|
|
*/
|
|
|
|
static inline void
|
|
fill_buffer (GstPlayBaseBin * play_base_bin, gint percent)
|
|
{
|
|
GST_DEBUG_OBJECT (play_base_bin, "buffering %d", percent);
|
|
gst_element_post_message (GST_ELEMENT_CAST (play_base_bin),
|
|
gst_message_new_buffering (GST_OBJECT_CAST (play_base_bin), percent));
|
|
}
|
|
|
|
static gboolean
|
|
check_queue_event (GstPad * pad, GstEvent * event, gpointer user_data)
|
|
{
|
|
GstElement *queue = GST_ELEMENT_CAST (user_data);
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_EOS:
|
|
GST_DEBUG ("EOS event, mark EOS");
|
|
g_object_set_data (G_OBJECT (queue), "eos", GINT_TO_POINTER (1));
|
|
break;
|
|
case GST_EVENT_FLUSH_STOP:
|
|
GST_DEBUG ("FLUSH_STOP event, remove EOS");
|
|
g_object_set_data (G_OBJECT (queue), "eos", NULL);
|
|
break;
|
|
default:
|
|
GST_DEBUG ("uninteresting event %s", GST_EVENT_TYPE_NAME (event));
|
|
break;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
check_queue (GstPad * pad, GstBuffer * data, gpointer user_data)
|
|
{
|
|
GstElement *queue = GST_ELEMENT_CAST (user_data);
|
|
GstPlayBaseBin *play_base_bin = g_object_get_data (G_OBJECT (queue), "pbb");
|
|
guint64 level = 0;
|
|
|
|
GST_DEBUG_OBJECT (queue, "check queue triggered");
|
|
|
|
g_object_get (G_OBJECT (queue), "current-level-time", &level, NULL);
|
|
GST_DEBUG_OBJECT (play_base_bin, "Queue size: %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (level));
|
|
|
|
if (play_base_bin->queue_threshold > 0) {
|
|
level = level * 99 / play_base_bin->queue_threshold;
|
|
if (level > 99)
|
|
level = 99;
|
|
} else
|
|
level = 99;
|
|
|
|
fill_buffer (play_base_bin, level);
|
|
|
|
/* continue! */
|
|
return TRUE;
|
|
}
|
|
|
|
/* If a queue overruns and we are buffer in streaming mode (we have a min-time)
|
|
* we can potentially create a deadlock when:
|
|
*
|
|
* 1) the max-bytes is hit and
|
|
* 2) the min-time is not hit.
|
|
*
|
|
* We recover from this situation in this callback by
|
|
* setting the max-bytes to unlimited if we see that there is
|
|
* a current-time-level (which means some sort of timestamping is
|
|
* done).
|
|
*/
|
|
static void
|
|
queue_deadlock_check (GstElement * queue, GstPlayBaseBin * play_base_bin)
|
|
{
|
|
guint64 time, min_time;
|
|
guint bytes;
|
|
|
|
GST_DEBUG_OBJECT (play_base_bin, "overrun signal received from queue %s",
|
|
GST_ELEMENT_NAME (queue));
|
|
|
|
/* figure out where we are */
|
|
g_object_get (G_OBJECT (queue), "current-level-time", &time,
|
|
"current-level-bytes", &bytes, "min-threshold-time", &min_time, NULL);
|
|
|
|
GST_DEBUG_OBJECT (play_base_bin, "streaming mode, queue %s current %"
|
|
GST_TIME_FORMAT ", min %" GST_TIME_FORMAT
|
|
", bytes %d", GST_ELEMENT_NAME (queue),
|
|
GST_TIME_ARGS (time), GST_TIME_ARGS (min_time), bytes);
|
|
|
|
/* if the bytes in the queue represent time, we disable bytes
|
|
* overrun checking to not cause deadlocks.
|
|
*/
|
|
if (bytes && time != 0 && time < min_time) {
|
|
GST_DEBUG_OBJECT (play_base_bin,
|
|
"possible deadlock found, removing byte limit");
|
|
|
|
/* queue knows about time but is filled with bytes that do
|
|
* not represent min-threshold time, disable bytes checking so
|
|
* the queue can grow some more. */
|
|
g_object_set (G_OBJECT (queue), "max-size-bytes", 0, NULL);
|
|
|
|
/* bytes limit is removed, we cannot deadlock anymore */
|
|
g_signal_handlers_disconnect_by_func (queue,
|
|
(gpointer) queue_deadlock_check, play_base_bin);
|
|
} else {
|
|
GST_DEBUG_OBJECT (play_base_bin, "no deadlock");
|
|
}
|
|
}
|
|
|
|
static void
|
|
queue_remove_probe (GstElement * queue, GstPlayBaseBin * play_base_bin)
|
|
{
|
|
gpointer data;
|
|
GstPad *sinkpad;
|
|
|
|
data = g_object_get_data (G_OBJECT (queue), "probe");
|
|
sinkpad = gst_element_get_static_pad (queue, "sink");
|
|
|
|
if (data) {
|
|
GST_DEBUG_OBJECT (play_base_bin,
|
|
"Removing buffer probe from pad %s:%s (%p)",
|
|
GST_DEBUG_PAD_NAME (sinkpad), sinkpad);
|
|
|
|
g_object_set_data (G_OBJECT (queue), "probe", NULL);
|
|
gst_pad_remove_buffer_probe (sinkpad, GPOINTER_TO_INT (data));
|
|
} else {
|
|
GST_DEBUG_OBJECT (play_base_bin,
|
|
"No buffer probe to remove from %s:%s (%p)",
|
|
GST_DEBUG_PAD_NAME (sinkpad), sinkpad);
|
|
}
|
|
gst_object_unref (sinkpad);
|
|
}
|
|
|
|
/* Used for time-based buffering in streaming mode and is called when a queue
|
|
* emits the running signal. This means that the high watermark threshold is
|
|
* reached and the buffering is completed. */
|
|
static void
|
|
queue_threshold_reached (GstElement * queue, GstPlayBaseBin * play_base_bin)
|
|
{
|
|
GstPlayBaseGroup *group;
|
|
gint n;
|
|
|
|
GST_DEBUG_OBJECT (play_base_bin, "running signal received from queue %s",
|
|
GST_ELEMENT_NAME (queue));
|
|
|
|
/* we disconnect the signal so that we don't get called for every buffer. */
|
|
g_signal_handlers_disconnect_by_func (queue,
|
|
(gpointer) queue_threshold_reached, play_base_bin);
|
|
|
|
if (g_object_get_data (G_OBJECT (queue), "eos")) {
|
|
GST_DEBUG_OBJECT (play_base_bin, "disable min threshold time, we are EOS");
|
|
g_object_set (queue, "min-threshold-time", (guint64) 0, NULL);
|
|
} else {
|
|
/* now place the limits at the low threshold. When we hit this limit, the
|
|
* underrun signal will be called. The underrun signal is always connected. */
|
|
GST_DEBUG_OBJECT (play_base_bin,
|
|
"setting min threshold time to %" G_GUINT64_FORMAT,
|
|
play_base_bin->queue_min_threshold);
|
|
g_object_set (queue, "min-threshold-time",
|
|
play_base_bin->queue_min_threshold, NULL);
|
|
}
|
|
|
|
GROUP_LOCK (play_base_bin);
|
|
group = get_active_group (play_base_bin);
|
|
if (!group) {
|
|
GROUP_UNLOCK (play_base_bin);
|
|
return;
|
|
}
|
|
|
|
/* we remove the probe now because we don't need it anymore to give progress
|
|
* about the buffering. */
|
|
for (n = 0; n < NUM_TYPES; n++) {
|
|
GstElement *element = group->type[n].preroll;
|
|
|
|
if (!element)
|
|
continue;
|
|
|
|
queue_remove_probe (element, play_base_bin);
|
|
}
|
|
|
|
GROUP_UNLOCK (play_base_bin);
|
|
|
|
/* we post a 100% buffering message to notify the app that buffering is
|
|
* completed and playback can start/continue */
|
|
if (play_base_bin->is_stream)
|
|
fill_buffer (play_base_bin, 100);
|
|
}
|
|
|
|
/* this signal will be fired when one of the queues with raw
|
|
* data is filled. This means that the group building stage is over
|
|
* and playback of the new queued group should start. This is a rather unusual
|
|
* situation because normally the group is commited when the "no_more_pads"
|
|
* signal is fired.
|
|
*/
|
|
static void
|
|
queue_overrun (GstElement * queue, GstPlayBaseBin * play_base_bin)
|
|
{
|
|
GST_DEBUG_OBJECT (play_base_bin, "queue %s overrun",
|
|
GST_ELEMENT_NAME (queue));
|
|
|
|
preroll_remove_overrun (queue, play_base_bin);
|
|
|
|
group_commit (play_base_bin, FALSE,
|
|
GST_OBJECT_PARENT (GST_OBJECT_CAST (queue)) ==
|
|
GST_OBJECT_CAST (play_base_bin->subtitle));
|
|
|
|
/* notify end of buffering */
|
|
queue_threshold_reached (queue, play_base_bin);
|
|
}
|
|
|
|
/* this signal is only added when in streaming mode to catch underruns
|
|
*/
|
|
static void
|
|
queue_out_of_data (GstElement * queue, GstPlayBaseBin * play_base_bin)
|
|
{
|
|
GST_DEBUG_OBJECT (play_base_bin, "underrun signal received from queue %s",
|
|
GST_ELEMENT_NAME (queue));
|
|
|
|
/* On underrun, we want to temoprarily pause playback, set a "min-size"
|
|
* threshold and wait for the running signal and then play again.
|
|
*
|
|
* This signal could never be called because the queue max-size limits are set
|
|
* too low. We take care of this possible deadlock in the the overrun signal
|
|
* handler. */
|
|
g_signal_connect (G_OBJECT (queue), "pushing",
|
|
G_CALLBACK (queue_threshold_reached), play_base_bin);
|
|
GST_DEBUG_OBJECT (play_base_bin,
|
|
"setting min threshold time to %" G_GUINT64_FORMAT,
|
|
(guint64) play_base_bin->queue_threshold);
|
|
g_object_set (queue, "min-threshold-time",
|
|
(guint64) play_base_bin->queue_threshold, NULL);
|
|
|
|
/* re-connect probe, this will fire feedback about the percentage that we
|
|
* buffered and is posted in the BUFFERING message. */
|
|
if (!g_object_get_data (G_OBJECT (queue), "probe")) {
|
|
GstPad *sinkpad;
|
|
guint id;
|
|
|
|
sinkpad = gst_element_get_static_pad (queue, "sink");
|
|
id = gst_pad_add_buffer_probe (sinkpad, G_CALLBACK (check_queue), queue);
|
|
g_object_set_data (G_OBJECT (queue), "probe", GINT_TO_POINTER (id));
|
|
GST_DEBUG_OBJECT (play_base_bin,
|
|
"Re-attaching buffering probe to pad %s:%s %p",
|
|
GST_DEBUG_PAD_NAME (sinkpad), sinkpad);
|
|
gst_object_unref (sinkpad);
|
|
|
|
fill_buffer (play_base_bin, 0);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* generate a preroll element which is simply a queue. While there
|
|
* are still dynamic elements in the pipeline, we wait for one
|
|
* of the queues to fill. The assumption is that all the dynamic
|
|
* streams will be detected by that time.
|
|
*
|
|
* Callers must have the group-lock held when calling this.
|
|
*/
|
|
static void
|
|
gen_preroll_element (GstPlayBaseBin * play_base_bin,
|
|
GstPlayBaseGroup * group, GstStreamType type, GstPad * pad,
|
|
GstStreamInfo * info)
|
|
{
|
|
GstElement *selector, *preroll;
|
|
gchar *name, *padname;
|
|
const gchar *prename;
|
|
guint overrun_sig;
|
|
GstPad *preroll_pad;
|
|
GstBin *target;
|
|
GstState state;
|
|
|
|
if (type == GST_STREAM_TYPE_VIDEO)
|
|
prename = "video";
|
|
else if (type == GST_STREAM_TYPE_TEXT)
|
|
prename = "text";
|
|
else if (type == GST_STREAM_TYPE_AUDIO)
|
|
prename = "audio";
|
|
else if (type == GST_STREAM_TYPE_SUBPICTURE)
|
|
prename = "subpicture";
|
|
else
|
|
g_return_if_reached ();
|
|
|
|
/* create stream selector */
|
|
selector = g_object_new (GST_TYPE_STREAM_SELECTOR, NULL);
|
|
padname = gst_pad_get_name (pad);
|
|
name = g_strdup_printf ("selector_%s_%s", prename, padname);
|
|
gst_object_set_name (GST_OBJECT_CAST (selector), name);
|
|
g_free (name);
|
|
|
|
/* create preroll queue */
|
|
name = g_strdup_printf ("preroll_%s_%s", prename, padname);
|
|
preroll = gst_element_factory_make ("queue", name);
|
|
g_free (name);
|
|
g_free (padname);
|
|
|
|
/* for buffering of raw data we ideally want to buffer a
|
|
* very small amount of buffers since the memory used by
|
|
* this raw data can be enormously huge.
|
|
*
|
|
* We use an upper limit of typically a few seconds here but
|
|
* cap in case no timestamps are set on the raw data (bad!).
|
|
*
|
|
* FIXME: we abuse this buffer to do network buffering since
|
|
* we can then easily do time-based buffering. The better
|
|
* solution would be to add a specific network queue right
|
|
* after the source that measures the datarate and scales this
|
|
* queue of encoded data instead.
|
|
*/
|
|
if (play_base_bin->raw_decoding_mode) {
|
|
if (type == GST_STREAM_TYPE_VIDEO) {
|
|
g_object_set (G_OBJECT (preroll),
|
|
"max-size-buffers", 2, "max-size-bytes", 0,
|
|
"max-size-time", (guint64) 0, NULL);
|
|
} else {
|
|
g_object_set (G_OBJECT (preroll),
|
|
"max-size-buffers", 0, "max-size-bytes",
|
|
2 * 1024 * 1024, "max-size-time", play_base_bin->queue_size, NULL);
|
|
}
|
|
} else {
|
|
g_object_set (G_OBJECT (preroll),
|
|
"max-size-buffers", 0, "max-size-bytes",
|
|
((type == GST_STREAM_TYPE_VIDEO) ? 25 : 2) * 1024 * 1024,
|
|
"max-size-time", play_base_bin->queue_size, NULL);
|
|
}
|
|
|
|
/* the overrun signal is always attached and serves two purposes:
|
|
*
|
|
* 1) when we are building a group and the overrun is called, we commit the
|
|
* group. The reason being that if we fill the entire queue without a
|
|
* normal group commit (with _no_more_pads()) we can assume the
|
|
* audio/video is completely wacked or the element just does not know when
|
|
* it is ready with all the pads (mpeg).
|
|
* 2) When we are doing network buffering, we keep track of low/high
|
|
* watermarks in the queue. It is possible that we set the high watermark
|
|
* higher than the max-size limits to trigger an overrun. In this case we
|
|
* will never get a running signal but we can use the overrun signal to
|
|
* detect this deadlock and correct it.
|
|
*/
|
|
overrun_sig = g_signal_connect (G_OBJECT (preroll), "overrun",
|
|
G_CALLBACK (queue_overrun), play_base_bin);
|
|
|
|
/* keep a ref to the signal id so that we can disconnect the signal callback
|
|
* when we are done with the preroll */
|
|
g_object_set_data (G_OBJECT (preroll), "overrun_signal_id",
|
|
GINT_TO_POINTER (overrun_sig));
|
|
|
|
if (play_base_bin->is_stream &&
|
|
((type == GST_STREAM_TYPE_VIDEO &&
|
|
group->type[GST_STREAM_TYPE_AUDIO - 1].npads == 0) ||
|
|
(type == GST_STREAM_TYPE_AUDIO &&
|
|
group->type[GST_STREAM_TYPE_VIDEO - 1].npads == 0))) {
|
|
GstPad *sinkpad;
|
|
guint id;
|
|
|
|
/* catch deadlocks when we are network buffering in time but the max-limit
|
|
* in bytes is hit. */
|
|
g_signal_connect (G_OBJECT (preroll), "overrun",
|
|
G_CALLBACK (queue_deadlock_check), play_base_bin);
|
|
|
|
/* attach pointer to playbasebin */
|
|
g_object_set_data (G_OBJECT (preroll), "pbb", play_base_bin);
|
|
|
|
/* give updates on queue size */
|
|
sinkpad = gst_element_get_static_pad (preroll, "sink");
|
|
id = gst_pad_add_buffer_probe (sinkpad, G_CALLBACK (check_queue), preroll);
|
|
GST_DEBUG_OBJECT (play_base_bin, "Attaching probe to pad %s:%s (%p)",
|
|
GST_DEBUG_PAD_NAME (sinkpad), sinkpad);
|
|
g_object_set_data (G_OBJECT (preroll), "probe", GINT_TO_POINTER (id));
|
|
|
|
/* catch eos and flush events so that we can ignore underruns */
|
|
id = gst_pad_add_event_probe (sinkpad, G_CALLBACK (check_queue_event),
|
|
preroll);
|
|
g_object_set_data (G_OBJECT (preroll), "eos_probe", GINT_TO_POINTER (id));
|
|
|
|
gst_object_unref (sinkpad);
|
|
|
|
/* When we connect this queue, it will start running and immediatly
|
|
* fire an underrun. */
|
|
g_signal_connect (G_OBJECT (preroll), "underrun",
|
|
G_CALLBACK (queue_out_of_data), play_base_bin);
|
|
/* configure threshold and callbacks */
|
|
queue_out_of_data (preroll, play_base_bin);
|
|
}
|
|
|
|
/* listen for EOS so we can switch groups when one ended. */
|
|
preroll_pad = gst_element_get_static_pad (preroll, "src");
|
|
gst_pad_add_event_probe (preroll_pad, G_CALLBACK (probe_triggered), info);
|
|
gst_object_unref (preroll_pad);
|
|
|
|
/* add to group list */
|
|
group->type[type - 1].selector = selector;
|
|
group->type[type - 1].preroll = preroll;
|
|
|
|
/* figure out where the preroll element should go */
|
|
if (type == GST_STREAM_TYPE_TEXT && play_base_bin->subtitle)
|
|
target = GST_BIN_CAST (play_base_bin->subtitle);
|
|
else
|
|
target = GST_BIN_CAST (play_base_bin);
|
|
|
|
group->type[type - 1].bin = target;
|
|
gst_bin_add (target, selector);
|
|
gst_bin_add (target, preroll);
|
|
|
|
gst_element_link (selector, preroll);
|
|
|
|
/* figure out target state and set */
|
|
state = (GST_STATE (play_base_bin) == GST_STATE_PLAYING ?
|
|
GST_STATE_PLAYING : GST_STATE_PAUSED);
|
|
|
|
gst_element_set_state (selector, state);
|
|
gst_element_set_state (preroll, state);
|
|
}
|
|
|
|
static void
|
|
preroll_remove_overrun (GstElement * element, GstPlayBaseBin * play_base_bin)
|
|
{
|
|
guint overrun_sig;
|
|
GObject *obj = G_OBJECT (element);
|
|
|
|
overrun_sig = GPOINTER_TO_INT (g_object_get_data (obj, "overrun_signal_id"));
|
|
if (overrun_sig) {
|
|
GST_LOG_OBJECT (play_base_bin, "removing preroll signal %s",
|
|
GST_ELEMENT_NAME (element));
|
|
g_signal_handler_disconnect (obj, overrun_sig);
|
|
/* We have disconnected this signal, remove the signal_id from the object
|
|
* data */
|
|
g_object_set_data (obj, "overrun_signal_id", NULL);
|
|
}
|
|
}
|
|
|
|
static void
|
|
remove_groups (GstPlayBaseBin * play_base_bin)
|
|
{
|
|
GROUP_LOCK (play_base_bin);
|
|
|
|
/* first destroy the group we were building if any */
|
|
if (play_base_bin->building_group) {
|
|
group_destroy (play_base_bin->building_group);
|
|
play_base_bin->building_group = NULL;
|
|
}
|
|
|
|
/* remove the queued groups */
|
|
g_list_foreach (play_base_bin->queued_groups, (GFunc) group_destroy, NULL);
|
|
g_list_free (play_base_bin->queued_groups);
|
|
play_base_bin->queued_groups = NULL;
|
|
|
|
/* clear subs */
|
|
if (play_base_bin->subtitle) {
|
|
gst_element_set_state (play_base_bin->subtitle, GST_STATE_NULL);
|
|
gst_bin_remove (GST_BIN_CAST (play_base_bin), play_base_bin->subtitle);
|
|
play_base_bin->subtitle = NULL;
|
|
}
|
|
|
|
GROUP_UNLOCK (play_base_bin);
|
|
}
|
|
|
|
/*
|
|
* Add/remove a single stream to current building group.
|
|
*
|
|
* Must be called with group-lock held.
|
|
*/
|
|
static void
|
|
add_stream (GstPlayBaseGroup * group, GstStreamInfo * info)
|
|
{
|
|
GValue v = { 0, };
|
|
GST_DEBUG ("add stream to group %p", group);
|
|
|
|
/* keep ref to the group */
|
|
g_object_set_data (G_OBJECT (info), "group", group);
|
|
|
|
g_value_init (&v, G_TYPE_OBJECT);
|
|
g_value_set_object (&v, info);
|
|
g_value_array_append (group->streaminfo_value_array, &v);
|
|
g_value_unset (&v);
|
|
group->streaminfo = g_list_append (group->streaminfo, info);
|
|
if (info->type > 0 && info->type <= NUM_TYPES) {
|
|
group->type[info->type - 1].npads++;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
string_arr_has_str (const gchar * values[], const gchar * value)
|
|
{
|
|
if (values && value) {
|
|
while (*values != NULL) {
|
|
if (strcmp (value, *values) == 0)
|
|
return TRUE;
|
|
++values;
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
/* mime types we are not handling on purpose right now, don't post a
|
|
* missing-plugin message for these */
|
|
static const gchar *blacklisted_mimes[] = {
|
|
"video/x-dvd-subpicture", NULL
|
|
};
|
|
|
|
#define IS_BLACKLISTED_MIME(type) (string_arr_has_str(blacklisted_mimes,type))
|
|
|
|
static void
|
|
gst_play_base_bin_handle_message_func (GstBin * bin, GstMessage * msg)
|
|
{
|
|
if (gst_is_missing_plugin_message (msg)) {
|
|
gchar *detail;
|
|
guint i;
|
|
|
|
detail = gst_missing_plugin_message_get_installer_detail (msg);
|
|
for (i = 0; detail != NULL && blacklisted_mimes[i] != NULL; ++i) {
|
|
if (strstr (detail, "|decoder-") && strstr (detail, blacklisted_mimes[i])) {
|
|
GST_LOG_OBJECT (bin, "suppressing message %" GST_PTR_FORMAT, msg);
|
|
gst_message_unref (msg);
|
|
g_free (detail);
|
|
return;
|
|
}
|
|
}
|
|
g_free (detail);
|
|
}
|
|
GST_BIN_CLASS (parent_class)->handle_message (bin, msg);
|
|
}
|
|
|
|
/*
|
|
* signal fired when an unknown stream is found. We create a new
|
|
* UNKNOWN streaminfo object.
|
|
*/
|
|
static void
|
|
unknown_type (GstElement * element, GstPad * pad, GstCaps * caps,
|
|
GstPlayBaseBin * play_base_bin)
|
|
{
|
|
const gchar *type_name;
|
|
GstStreamInfo *info;
|
|
GstPlayBaseGroup *group;
|
|
|
|
type_name = gst_structure_get_name (gst_caps_get_structure (caps, 0));
|
|
if (type_name && !IS_BLACKLISTED_MIME (type_name)) {
|
|
gchar *capsstr;
|
|
|
|
capsstr = gst_caps_to_string (caps);
|
|
GST_DEBUG_OBJECT (play_base_bin, "don't know how to handle %s", capsstr);
|
|
/* FIXME, g_message() ? */
|
|
g_message ("don't know how to handle %s", capsstr);
|
|
g_free (capsstr);
|
|
} else {
|
|
/* don't spew stuff to the terminal or send message if it's blacklisted */
|
|
GST_DEBUG_OBJECT (play_base_bin, "media type %s not handled on purpose, "
|
|
"not posting a missing-plugin message on the bus", type_name);
|
|
}
|
|
|
|
GROUP_LOCK (play_base_bin);
|
|
|
|
group = get_building_group (play_base_bin);
|
|
|
|
/* add the stream to the list */
|
|
info = gst_stream_info_new (GST_OBJECT_CAST (pad), GST_STREAM_TYPE_UNKNOWN,
|
|
NULL, caps);
|
|
info->origin = GST_OBJECT_CAST (pad);
|
|
add_stream (group, info);
|
|
|
|
GROUP_UNLOCK (play_base_bin);
|
|
}
|
|
|
|
/* 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, GstPlayBaseBin * play_base_bin)
|
|
{
|
|
GstStreamInfo *info;
|
|
GstPlayBaseGroup *group;
|
|
|
|
GROUP_LOCK (play_base_bin);
|
|
|
|
group = get_building_group (play_base_bin);
|
|
|
|
/* add the stream to the list */
|
|
info =
|
|
gst_stream_info_new (GST_OBJECT_CAST (element), GST_STREAM_TYPE_ELEMENT,
|
|
NULL, NULL);
|
|
info->origin = GST_OBJECT_CAST (element);
|
|
add_stream (group, info);
|
|
|
|
GROUP_UNLOCK (play_base_bin);
|
|
}
|
|
|
|
/* 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,
|
|
GstPlayBaseBin * play_base_bin)
|
|
{
|
|
/* setup phase */
|
|
GST_DEBUG_OBJECT (element, "no more pads, %d pending",
|
|
play_base_bin->pending);
|
|
|
|
/* nothing pending, we can exit */
|
|
if (play_base_bin->pending == 0)
|
|
return;
|
|
|
|
/* the object has no pending no_more_pads */
|
|
if (!g_object_get_data (G_OBJECT (element), "pending"))
|
|
return;
|
|
|
|
g_object_set_data (G_OBJECT (element), "pending", NULL);
|
|
|
|
play_base_bin->pending--;
|
|
|
|
GST_DEBUG_OBJECT (element, "remove pending, now %d pending",
|
|
play_base_bin->pending);
|
|
|
|
if (play_base_bin->pending == 0) {
|
|
/* we can commit this group for playback now */
|
|
group_commit (play_base_bin, play_base_bin->is_stream, subs);
|
|
}
|
|
}
|
|
|
|
static void
|
|
no_more_pads (GstElement * element, GstPlayBaseBin * play_base_bin)
|
|
{
|
|
no_more_pads_full (element, FALSE, play_base_bin);
|
|
}
|
|
|
|
static void
|
|
sub_no_more_pads (GstElement * element, GstPlayBaseBin * play_base_bin)
|
|
{
|
|
no_more_pads_full (element, TRUE, play_base_bin);
|
|
}
|
|
|
|
static void
|
|
source_no_more_pads (GstElement * element, GstPlayBaseBin * bin)
|
|
{
|
|
GST_DEBUG_OBJECT (bin, "No more pads in source element %s.",
|
|
GST_ELEMENT_NAME (element));
|
|
|
|
g_signal_handler_disconnect (G_OBJECT (element), bin->src_np_sig_id);
|
|
bin->src_np_sig_id = 0;
|
|
g_signal_handler_disconnect (G_OBJECT (element), bin->src_nmp_sig_id);
|
|
bin->src_nmp_sig_id = 0;
|
|
|
|
no_more_pads_full (element, FALSE, bin);
|
|
}
|
|
|
|
static gboolean
|
|
probe_triggered (GstPad * pad, GstEvent * event, gpointer user_data)
|
|
{
|
|
GstPlayBaseGroup *group;
|
|
GstPlayBaseBin *play_base_bin;
|
|
GstStreamInfo *info;
|
|
GstEventType type;
|
|
|
|
type = GST_EVENT_TYPE (event);
|
|
|
|
GST_LOG ("probe triggered, (%d) %s", type, gst_event_type_get_name (type));
|
|
|
|
/* we only care about EOS */
|
|
if (type != GST_EVENT_EOS)
|
|
return TRUE;
|
|
|
|
info = GST_STREAM_INFO (user_data);
|
|
group = (GstPlayBaseGroup *) g_object_get_data (G_OBJECT (info), "group");
|
|
play_base_bin = group->bin;
|
|
|
|
if (type == GST_EVENT_EOS) {
|
|
gint num_groups = 0;
|
|
gboolean have_left;
|
|
|
|
GST_DEBUG_OBJECT (play_base_bin, "probe got EOS in group %p", group);
|
|
|
|
GROUP_LOCK (play_base_bin);
|
|
|
|
/* mute this stream */
|
|
g_object_set (G_OBJECT (info), "mute", TRUE, NULL);
|
|
if (info->type > 0 && info->type <= NUM_TYPES)
|
|
group->type[info->type - 1].done = TRUE;
|
|
|
|
/* see if we have some more groups left to play */
|
|
num_groups = g_list_length (play_base_bin->queued_groups);
|
|
if (play_base_bin->building_group)
|
|
num_groups++;
|
|
have_left = (num_groups > 1);
|
|
|
|
/* see if the complete group is muted */
|
|
if (!group_is_muted (group)) {
|
|
/* group is not completely muted, we remove the EOS event
|
|
* and continue, eventually the other streams will be EOSed and
|
|
* we can switch out this group. */
|
|
GST_DEBUG ("group %p not completely muted", group);
|
|
|
|
GROUP_UNLOCK (play_base_bin);
|
|
|
|
/* remove the EOS if we have something left */
|
|
return !have_left;
|
|
}
|
|
|
|
if (have_left) {
|
|
/* ok, get rid of the current group then */
|
|
//group_destroy (group);
|
|
/* removing the current group brings the next group
|
|
* active */
|
|
play_base_bin->queued_groups =
|
|
g_list_remove (play_base_bin->queued_groups, group);
|
|
/* and wait for the next one to be ready */
|
|
while (!play_base_bin->queued_groups) {
|
|
GROUP_WAIT (play_base_bin);
|
|
}
|
|
group = play_base_bin->queued_groups->data;
|
|
|
|
/* now activate the next one */
|
|
setup_substreams (play_base_bin);
|
|
GST_DEBUG ("switching to next group %p - emitting signal", group);
|
|
/* and signal the new group */
|
|
GST_PLAY_BASE_BIN_GET_CLASS (play_base_bin)->setup_output_pads
|
|
(play_base_bin, group);
|
|
|
|
GROUP_UNLOCK (play_base_bin);
|
|
|
|
g_object_notify (G_OBJECT (play_base_bin), "stream-info");
|
|
|
|
/* get rid of the EOS event */
|
|
return FALSE;
|
|
} else {
|
|
GROUP_UNLOCK (play_base_bin);
|
|
GST_LOG ("Last group done, EOS");
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* This function will be called when the sinkpad of the preroll element
|
|
* is unlinked, we have to connect something to the sinkpad or else the
|
|
* state change will fail..
|
|
*/
|
|
static void
|
|
preroll_unlinked (GstPad * pad, GstPad * peerpad,
|
|
GstPlayBaseBin * play_base_bin)
|
|
{
|
|
GstElement *fakesrc;
|
|
guint sig_id;
|
|
GstPad *srcpad;
|
|
|
|
/* make a fakesrc that will just emit one EOS */
|
|
fakesrc = gst_element_factory_make ("fakesrc", NULL);
|
|
g_object_set (G_OBJECT (fakesrc), "num-buffers", 0, NULL);
|
|
|
|
GST_DEBUG ("patching unlinked pad %s:%s", GST_DEBUG_PAD_NAME (pad));
|
|
|
|
srcpad = gst_element_get_static_pad (fakesrc, "src");
|
|
gst_bin_add (GST_BIN_CAST (play_base_bin), fakesrc);
|
|
gst_pad_link (srcpad, pad);
|
|
gst_object_unref (srcpad);
|
|
|
|
/* keep track of these patch elements */
|
|
g_object_set_data (G_OBJECT (pad), "fakesrc", fakesrc);
|
|
|
|
/* now unlink the unlinked signal so that it is not called again when
|
|
* we destroy the queue */
|
|
sig_id = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (pad), "unlinked_id"));
|
|
if (sig_id != 0) {
|
|
g_signal_handler_disconnect (G_OBJECT (pad), sig_id);
|
|
g_object_set_data (G_OBJECT (pad), "unlinked_id", GINT_TO_POINTER (0));
|
|
}
|
|
}
|
|
|
|
/* Mute stream on first data - for header-is-in-stream-stuff
|
|
* (vorbis, ogmtext). */
|
|
static gboolean
|
|
mute_stream (GstPad * pad, GstBuffer * buf, gpointer data)
|
|
{
|
|
GstStreamInfo *info = GST_STREAM_INFO (data);
|
|
guint id;
|
|
|
|
GST_DEBUG ("mute stream triggered");
|
|
|
|
g_object_set (G_OBJECT (info), "mute", TRUE, NULL);
|
|
id = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (info), "mute_probe"));
|
|
g_object_set_data (G_OBJECT (info), "mute_probe", NULL);
|
|
if (id > 0)
|
|
gst_pad_remove_buffer_probe (GST_PAD_CAST (info->object), id);
|
|
|
|
/* no data */
|
|
return FALSE;
|
|
}
|
|
|
|
/* Eat data. */
|
|
static gboolean
|
|
silence_stream (GstPad * pad, GstMiniObject * data, gpointer user_data)
|
|
{
|
|
GST_DEBUG ("silence stream triggered");
|
|
|
|
/* no data */
|
|
return FALSE;
|
|
}
|
|
|
|
/* Called by the signal handlers when a decodebin (main or subtitle) has
|
|
* found a new raw pad. We create a preroll element if needed and the
|
|
* appropriate streaminfo. Commits the group if there will be no more pads
|
|
* from decodebin */
|
|
static void
|
|
new_decoded_pad_full (GstElement * element, GstPad * pad, gboolean last,
|
|
GstPlayBaseBin * play_base_bin, gboolean is_subs)
|
|
{
|
|
GstStructure *structure;
|
|
const gchar *mimetype;
|
|
GstCaps *caps;
|
|
GstStreamInfo *info;
|
|
GstStreamType type = GST_STREAM_TYPE_UNKNOWN;
|
|
GstPad *sinkpad;
|
|
GstPlayBaseGroup *group;
|
|
guint sig;
|
|
GstObject *parent;
|
|
gboolean first_pad;
|
|
|
|
GST_DEBUG ("play base: new decoded pad. Last: %d", last);
|
|
|
|
/* first see if this pad has interesting caps */
|
|
caps = gst_pad_get_caps (pad);
|
|
if (caps == NULL || gst_caps_is_empty (caps) || gst_caps_is_any (caps))
|
|
goto no_type;
|
|
|
|
/* get the mime type */
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
mimetype = gst_structure_get_name (structure);
|
|
|
|
GROUP_LOCK (play_base_bin);
|
|
|
|
group = get_building_group (play_base_bin);
|
|
|
|
group->nstreams++;
|
|
|
|
parent = gst_object_get_parent (GST_OBJECT_CAST (element));
|
|
if (g_str_has_prefix (mimetype, "audio/") &&
|
|
parent != GST_OBJECT_CAST (play_base_bin->subtitle)) {
|
|
type = GST_STREAM_TYPE_AUDIO;
|
|
} else if (g_str_has_prefix (mimetype, "video/x-dvd-subpicture") &&
|
|
parent != GST_OBJECT_CAST (play_base_bin->subtitle)) {
|
|
type = GST_STREAM_TYPE_SUBPICTURE;
|
|
} else if (g_str_has_prefix (mimetype, "video/") &&
|
|
parent != GST_OBJECT_CAST (play_base_bin->subtitle)) {
|
|
type = GST_STREAM_TYPE_VIDEO;
|
|
} else if (g_str_has_prefix (mimetype, "text/")) {
|
|
type = GST_STREAM_TYPE_TEXT;
|
|
}
|
|
gst_object_unref (parent);
|
|
|
|
info = gst_stream_info_new (GST_OBJECT_CAST (pad), type, NULL, caps);
|
|
gst_caps_unref (caps);
|
|
|
|
if (type == GST_STREAM_TYPE_UNKNOWN) {
|
|
/* Unknown streams get added to the group, but the data
|
|
* just gets ignored */
|
|
add_stream (group, info);
|
|
|
|
GROUP_UNLOCK (play_base_bin);
|
|
|
|
/* signal the no more pads after adding the stream */
|
|
if (last)
|
|
no_more_pads_full (element, is_subs, play_base_bin);
|
|
|
|
return;
|
|
}
|
|
|
|
/* first pad of each type gets a selector + preroll queue */
|
|
first_pad = (group->type[type - 1].npads == 0);
|
|
|
|
if (first_pad) {
|
|
GST_DEBUG ("play base: pad needs new preroll");
|
|
gen_preroll_element (play_base_bin, group, type, pad, info);
|
|
}
|
|
|
|
/* add to stream selector */
|
|
sinkpad =
|
|
gst_element_get_request_pad (group->type[type - 1].selector, "sink%d");
|
|
|
|
/* make sure we catch unlink signals */
|
|
sig = g_signal_connect (G_OBJECT (sinkpad), "unlinked",
|
|
G_CALLBACK (preroll_unlinked), play_base_bin);
|
|
/* keep a ref to the signal id so that we can disconnect the signal callback */
|
|
g_object_set_data (G_OBJECT (sinkpad), "unlinked_id", GINT_TO_POINTER (sig));
|
|
/* Store a pointer to the stream selector pad for this stream */
|
|
g_object_set_data (G_OBJECT (pad), "pb_sel_pad", sinkpad);
|
|
|
|
gst_pad_link (pad, sinkpad);
|
|
gst_object_unref (sinkpad);
|
|
|
|
/* select 1st for now - we'll select a preferred one after preroll */
|
|
if (!first_pad) {
|
|
guint id;
|
|
|
|
GST_DEBUG ("Adding silence_stream data probe on type %d (npads %d)", type,
|
|
group->type[type - 1].npads);
|
|
|
|
id = gst_pad_add_data_probe (GST_PAD_CAST (pad),
|
|
G_CALLBACK (silence_stream), info);
|
|
g_object_set_data (G_OBJECT (pad), "eat_probe", GINT_TO_POINTER (id));
|
|
}
|
|
|
|
/* add the stream to the list */
|
|
add_stream (group, info);
|
|
|
|
GROUP_UNLOCK (play_base_bin);
|
|
|
|
/* signal the no more pads after adding the stream */
|
|
if (last)
|
|
no_more_pads_full (element, is_subs, play_base_bin);
|
|
|
|
return;
|
|
|
|
/* ERRORS */
|
|
no_type:
|
|
{
|
|
g_warning ("no type on pad %s:%s", GST_DEBUG_PAD_NAME (pad));
|
|
if (caps)
|
|
gst_caps_unref (caps);
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void
|
|
new_decoded_pad (GstElement * element, GstPad * pad, gboolean last,
|
|
GstPlayBaseBin * play_base_bin)
|
|
{
|
|
new_decoded_pad_full (element, pad, last, play_base_bin, FALSE);
|
|
}
|
|
|
|
static void
|
|
subs_new_decoded_pad (GstElement * element, GstPad * pad, gboolean last,
|
|
GstPlayBaseBin * play_base_bin)
|
|
{
|
|
new_decoded_pad_full (element, pad, last, play_base_bin, TRUE);
|
|
}
|
|
|
|
static void
|
|
set_encoding_element (GstElement * element, gchar * encoding)
|
|
{
|
|
GST_DEBUG_OBJECT (element, "setting encoding to %s", GST_STR_NULL (encoding));
|
|
g_object_set (G_OBJECT (element), "subtitle-encoding", encoding, NULL);
|
|
}
|
|
|
|
|
|
static void
|
|
decodebin_element_added_cb (GstBin * decodebin, GstElement * element,
|
|
gpointer data)
|
|
{
|
|
GstPlayBaseBin *play_base_bin = GST_PLAY_BASE_BIN (data);
|
|
gchar *encoding;
|
|
|
|
if (!g_object_class_find_property (G_OBJECT_GET_CLASS (element),
|
|
"subtitle-encoding")) {
|
|
return;
|
|
}
|
|
|
|
g_mutex_lock (play_base_bin->sub_lock);
|
|
play_base_bin->subtitle_elements =
|
|
g_slist_append (play_base_bin->subtitle_elements, element);
|
|
encoding = g_strdup (play_base_bin->subencoding);
|
|
g_mutex_unlock (play_base_bin->sub_lock);
|
|
|
|
set_encoding_element (element, encoding);
|
|
g_free (encoding);
|
|
}
|
|
|
|
static void
|
|
decodebin_element_removed_cb (GstBin * decodebin, GstElement * element,
|
|
gpointer data)
|
|
{
|
|
GstPlayBaseBin *play_base_bin = GST_PLAY_BASE_BIN (data);
|
|
|
|
g_mutex_lock (play_base_bin->sub_lock);
|
|
play_base_bin->subtitle_elements =
|
|
g_slist_remove (play_base_bin->subtitle_elements, element);
|
|
g_mutex_unlock (play_base_bin->sub_lock);
|
|
}
|
|
|
|
|
|
/*
|
|
* Generate source ! subparse bins.
|
|
*/
|
|
|
|
static GstElement *
|
|
setup_subtitle (GstPlayBaseBin * play_base_bin, gchar * sub_uri)
|
|
{
|
|
GstElement *source, *subdecodebin, *subbin;
|
|
|
|
if (!gst_uri_is_valid (sub_uri))
|
|
goto invalid_uri;
|
|
|
|
source = gst_element_make_from_uri (GST_URI_SRC, sub_uri, NULL);
|
|
if (!source)
|
|
goto unknown_uri;
|
|
|
|
if (g_getenv ("USE_DECODEBIN2"))
|
|
subdecodebin = gst_element_factory_make ("decodebin2", "subtitle-decoder");
|
|
else
|
|
subdecodebin = gst_element_factory_make ("decodebin", "subtitle-decoder");
|
|
g_signal_connect (subdecodebin, "element-added",
|
|
G_CALLBACK (decodebin_element_added_cb), play_base_bin);
|
|
g_signal_connect (subdecodebin, "element-removed",
|
|
G_CALLBACK (decodebin_element_removed_cb), play_base_bin);
|
|
subbin = gst_bin_new ("subtitle-bin");
|
|
gst_bin_add_many (GST_BIN_CAST (subbin), source, subdecodebin, NULL);
|
|
|
|
gst_element_link (source, subdecodebin);
|
|
|
|
/* return the subtitle GstElement object */
|
|
return subbin;
|
|
|
|
/* WARNINGS */
|
|
invalid_uri:
|
|
{
|
|
GST_ELEMENT_WARNING (play_base_bin, RESOURCE, NOT_FOUND,
|
|
(_("Invalid subtitle URI \"%s\", subtitles disabled."), sub_uri),
|
|
(NULL));
|
|
return NULL;
|
|
}
|
|
unknown_uri:
|
|
{
|
|
gchar *prot = gst_uri_get_protocol (sub_uri);
|
|
|
|
if (prot) {
|
|
gchar *desc;
|
|
|
|
gst_element_post_message (GST_ELEMENT (play_base_bin),
|
|
gst_missing_uri_source_message_new (GST_ELEMENT (play_base_bin),
|
|
prot));
|
|
|
|
desc = gst_pb_utils_get_source_description (prot);
|
|
GST_ELEMENT_ERROR (play_base_bin, CORE, MISSING_PLUGIN,
|
|
(_("A %s plugin is required to play this stream, but not installed."),
|
|
desc), ("No URI handler to handle sub_uri: %s", sub_uri));
|
|
g_free (desc);
|
|
g_free (prot);
|
|
} else
|
|
goto invalid_uri;
|
|
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/* 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;
|
|
}
|
|
|
|
/* 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://", "mms://", "mmsh://",
|
|
"mmsu://", "mmst://", "myth://", NULL
|
|
};
|
|
|
|
/* blacklisted URIs, we know they will always fail. */
|
|
static const gchar *blacklisted_uris[] = { NULL };
|
|
|
|
/* mime types that we don't consider to be media types */
|
|
static const gchar *no_media_mimes[] = {
|
|
"application/x-executable", "application/x-bzip", "application/x-gzip",
|
|
"application/zip", "application/x-compress", NULL
|
|
};
|
|
|
|
/* mime types we consider raw media */
|
|
static const gchar *raw_mimes[] = {
|
|
"audio/x-raw", "video/x-raw", "video/x-dvd-subpicture", NULL
|
|
};
|
|
|
|
#define IS_STREAM_URI(uri) (array_has_value (stream_uris, uri))
|
|
#define IS_BLACKLISTED_URI(uri) (array_has_value (blacklisted_uris, uri))
|
|
#define IS_NO_MEDIA_MIME(mime) (array_has_value (no_media_mimes, mime))
|
|
#define IS_RAW_MIME(mime) (array_has_value (raw_mimes, mime))
|
|
|
|
/*
|
|
* Generate and configure a source element.
|
|
*/
|
|
static GstElement *
|
|
gen_source_element (GstPlayBaseBin * play_base_bin, GstElement ** subbin)
|
|
{
|
|
GstElement *source;
|
|
|
|
if (!play_base_bin->uri)
|
|
goto no_uri;
|
|
|
|
if (!gst_uri_is_valid (play_base_bin->uri))
|
|
goto invalid_uri;
|
|
|
|
if (IS_BLACKLISTED_URI (play_base_bin->uri))
|
|
goto uri_blacklisted;
|
|
|
|
if (play_base_bin->suburi) {
|
|
GST_LOG_OBJECT (play_base_bin, "Creating decoder for subtitles URI %s",
|
|
play_base_bin->suburi);
|
|
/* subtitle specified */
|
|
*subbin = setup_subtitle (play_base_bin, play_base_bin->suburi);
|
|
} else {
|
|
/* no subtitle specified */
|
|
*subbin = NULL;
|
|
}
|
|
|
|
source = gst_element_make_from_uri (GST_URI_SRC, play_base_bin->uri,
|
|
"source");
|
|
if (!source)
|
|
goto no_source;
|
|
|
|
play_base_bin->is_stream = IS_STREAM_URI (play_base_bin->uri);
|
|
|
|
/* make HTTP sources send extra headers so we get icecast
|
|
* metadata in case the stream is an icecast stream */
|
|
if (!strncmp (play_base_bin->uri, "http://", 7) &&
|
|
g_object_class_find_property (G_OBJECT_GET_CLASS (source),
|
|
"iradio-mode")) {
|
|
g_object_set (source, "iradio-mode", TRUE, NULL);
|
|
}
|
|
|
|
if (g_object_class_find_property (G_OBJECT_GET_CLASS (source),
|
|
"connection-speed")) {
|
|
GST_DEBUG_OBJECT (play_base_bin,
|
|
"setting connection-speed=%d to source element",
|
|
play_base_bin->connection_speed / 1000);
|
|
g_object_set (source, "connection-speed",
|
|
play_base_bin->connection_speed / 1000, NULL);
|
|
}
|
|
|
|
return source;
|
|
|
|
/* ERRORS */
|
|
no_uri:
|
|
{
|
|
GST_ELEMENT_ERROR (play_base_bin, RESOURCE, NOT_FOUND,
|
|
(_("No URI specified to play from.")), (NULL));
|
|
return NULL;
|
|
}
|
|
invalid_uri:
|
|
{
|
|
GST_ELEMENT_ERROR (play_base_bin, RESOURCE, NOT_FOUND,
|
|
(_("Invalid URI \"%s\"."), play_base_bin->uri), (NULL));
|
|
return NULL;
|
|
}
|
|
uri_blacklisted:
|
|
{
|
|
GST_ELEMENT_ERROR (play_base_bin, RESOURCE, FAILED,
|
|
(_("RTSP streams cannot be played yet.")), (NULL));
|
|
return NULL;
|
|
}
|
|
no_source:
|
|
{
|
|
gchar *prot = gst_uri_get_protocol (play_base_bin->uri);
|
|
|
|
/* whoops, could not create the source element, dig a little deeper to
|
|
* figure out what might be wrong. */
|
|
if (prot) {
|
|
gchar *desc;
|
|
|
|
gst_element_post_message (GST_ELEMENT (play_base_bin),
|
|
gst_missing_uri_source_message_new (GST_ELEMENT (play_base_bin),
|
|
prot));
|
|
|
|
desc = gst_pb_utils_get_source_description (prot);
|
|
GST_ELEMENT_ERROR (play_base_bin, CORE, MISSING_PLUGIN,
|
|
(_("A %s plugin is required to play this stream, but not installed."),
|
|
desc), ("No URI handler for %s", prot));
|
|
g_free (desc);
|
|
g_free (prot);
|
|
} else
|
|
goto invalid_uri;
|
|
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/* is called when a dynamic source element created a new pad. */
|
|
static void
|
|
source_new_pad (GstElement * element, GstPad * pad, GstPlayBaseBin * bin)
|
|
{
|
|
GstElement *decoder;
|
|
gboolean is_raw;
|
|
|
|
GST_DEBUG_OBJECT (bin, "Found new pad %s.%s in source element %s",
|
|
GST_DEBUG_PAD_NAME (pad), GST_ELEMENT_NAME (element));
|
|
|
|
/* if this is a pad with all raw caps, we can expose it */
|
|
if (has_all_raw_caps (pad, &is_raw) && is_raw) {
|
|
bin->raw_decoding_mode = TRUE;
|
|
/* it's all raw, create output pads. */
|
|
new_decoded_pad_full (element, pad, FALSE, bin, FALSE);
|
|
return;
|
|
}
|
|
|
|
/* not raw, create decoder */
|
|
decoder = make_decoder (bin);
|
|
if (!decoder)
|
|
goto no_decodebin;
|
|
|
|
/* and link to decoder */
|
|
if (!gst_element_link (bin->source, decoder))
|
|
goto could_not_link;
|
|
|
|
gst_element_set_state (decoder, GST_STATE_PAUSED);
|
|
|
|
return;
|
|
|
|
/* ERRORS */
|
|
no_decodebin:
|
|
{
|
|
/* error was posted */
|
|
return;
|
|
}
|
|
could_not_link:
|
|
{
|
|
GST_ELEMENT_ERROR (bin, CORE, NEGOTIATION,
|
|
(NULL), ("Can't link source to decoder element"));
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Setup the substreams (is called right after group_commit () when
|
|
* loading a new group, or after switching groups).
|
|
*
|
|
* Should be called with group-lock held.
|
|
*/
|
|
static void
|
|
setup_substreams (GstPlayBaseBin * play_base_bin)
|
|
{
|
|
GstPlayBaseGroup *group;
|
|
gint n;
|
|
const GList *item;
|
|
|
|
GST_DEBUG_OBJECT (play_base_bin, "setting up substreams");
|
|
|
|
/* Remove the eat probes */
|
|
group = get_active_group (play_base_bin);
|
|
for (item = group->streaminfo; item; item = item->next) {
|
|
GstStreamInfo *info = item->data;
|
|
gpointer data;
|
|
|
|
data = g_object_get_data (G_OBJECT (info->object), "eat_probe");
|
|
if (data) {
|
|
gst_pad_remove_data_probe (GST_PAD_CAST (info->object),
|
|
GPOINTER_TO_INT (data));
|
|
g_object_set_data (G_OBJECT (info->object), "eat_probe", NULL);
|
|
}
|
|
|
|
/* now remove unknown pads */
|
|
if (info->type == GST_STREAM_TYPE_UNKNOWN) {
|
|
guint id;
|
|
|
|
id = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (info), "mute_probe"));
|
|
if (id == 0) {
|
|
id = gst_pad_add_buffer_probe (GST_PAD_CAST (info->object),
|
|
G_CALLBACK (mute_stream), info);
|
|
g_object_set_data (G_OBJECT (info), "mute_probe", GINT_TO_POINTER (id));
|
|
}
|
|
}
|
|
}
|
|
|
|
/* now check if the requested current streams exist. If
|
|
* current >= num_streams, decrease current so at least
|
|
* we have output. Always keep it enabled. */
|
|
for (n = 0; n < NUM_TYPES; n++) {
|
|
if (play_base_bin->current[n] >= group->type[n].npads) {
|
|
GST_DEBUG_OBJECT (play_base_bin, "reset type %d to current 0", n);
|
|
play_base_bin->current[n] = 0;
|
|
}
|
|
}
|
|
|
|
/* now activate the right sources. Don't forget that during preroll,
|
|
* we set the first source to forwarding and ignored the rest. */
|
|
for (n = 0; n < NUM_TYPES; n++) {
|
|
GST_DEBUG_OBJECT (play_base_bin, "setting type %d to current %d", n,
|
|
play_base_bin->current[n]);
|
|
set_active_source (play_base_bin, n + 1, play_base_bin->current[n]);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* has_all_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 has no caps. Else TRUE and @all_raw set t the result.
|
|
*/
|
|
static gboolean
|
|
has_all_raw_caps (GstPad * pad, gboolean * all_raw)
|
|
{
|
|
GstCaps *caps;
|
|
gint capssize;
|
|
guint i, num_raw = 0;
|
|
gboolean res = FALSE;
|
|
|
|
caps = gst_pad_get_caps (pad);
|
|
if (caps == NULL)
|
|
return FALSE;
|
|
|
|
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;
|
|
|
|
/* count the number of raw formats in the caps */
|
|
for (i = 0; i < capssize; ++i) {
|
|
GstStructure *s;
|
|
const gchar *mime_type;
|
|
|
|
s = gst_caps_get_structure (caps, i);
|
|
mime_type = gst_structure_get_name (s);
|
|
|
|
if (IS_RAW_MIME (mime_type))
|
|
++num_raw;
|
|
}
|
|
|
|
*all_raw = (num_raw == capssize);
|
|
res = TRUE;
|
|
|
|
done:
|
|
gst_caps_unref (caps);
|
|
return res;
|
|
}
|
|
|
|
/**
|
|
* analyse_source:
|
|
* @play_base_bin: a #GstPlayBaseBin
|
|
* @is_raw: are all pads raw data
|
|
* @have_out: does the source have output
|
|
* @is_dynamic: is this a dynamic source
|
|
*
|
|
* Check the source of @play_base_bin 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 @play_base_bin.
|
|
*
|
|
* @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 occured while scanning.
|
|
*/
|
|
static gboolean
|
|
analyse_source (GstPlayBaseBin * play_base_bin, gboolean * is_raw,
|
|
gboolean * have_out, gboolean * is_dynamic)
|
|
{
|
|
GstIterator *pads_iter;
|
|
gboolean done = FALSE;
|
|
gboolean res = TRUE;
|
|
|
|
*have_out = FALSE;
|
|
*is_raw = FALSE;
|
|
*is_dynamic = FALSE;
|
|
|
|
pads_iter = gst_element_iterate_src_pads (play_base_bin->source);
|
|
while (!done) {
|
|
GstPad *pad = NULL;
|
|
|
|
switch (gst_iterator_next (pads_iter, (gpointer) & pad)) {
|
|
case GST_ITERATOR_ERROR:
|
|
res = FALSE;
|
|
/* FALLTROUGH */
|
|
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:
|
|
/* we now officially have an ouput pad */
|
|
*have_out = TRUE;
|
|
|
|
/* if FALSE, this pad has no caps and we continue with the next pad. */
|
|
if (!has_all_raw_caps (pad, is_raw)) {
|
|
gst_object_unref (pad);
|
|
break;
|
|
}
|
|
|
|
/* caps on source pad are all raw, we can add the pad */
|
|
if (*is_raw) {
|
|
new_decoded_pad_full (play_base_bin->source, pad, FALSE,
|
|
play_base_bin, FALSE);
|
|
}
|
|
|
|
gst_object_unref (pad);
|
|
break;
|
|
}
|
|
}
|
|
gst_iterator_free (pads_iter);
|
|
|
|
if (!*have_out) {
|
|
GstElementClass *elemclass;
|
|
GList *walk;
|
|
|
|
/* element has no output pads, check for padtemplates that list SOMETIMES
|
|
* pads. */
|
|
elemclass = GST_ELEMENT_GET_CLASS (play_base_bin->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; /* only break out if we found a sometimes src pad
|
|
continue walking through if say a request src pad is found
|
|
elements such as mpegtsparse and dvbbasebin have request
|
|
and sometimes src pads */
|
|
}
|
|
}
|
|
walk = g_list_next (walk);
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static void
|
|
remove_decoders (GstPlayBaseBin * bin)
|
|
{
|
|
GSList *walk;
|
|
|
|
for (walk = bin->decoders; walk; walk = g_slist_next (walk)) {
|
|
GstElement *decoder = GST_ELEMENT_CAST (walk->data);
|
|
|
|
GST_DEBUG_OBJECT (bin, "removing old decoder element");
|
|
/* Disconnect all the signal handlers we attached to the decodebin before
|
|
* we dispose of it */
|
|
g_signal_handlers_disconnect_by_func (decoder,
|
|
(gpointer) (decodebin_element_added_cb), bin);
|
|
g_signal_handlers_disconnect_by_func (decoder,
|
|
(gpointer) (decodebin_element_removed_cb), bin);
|
|
g_signal_handlers_disconnect_by_func (decoder,
|
|
(gpointer) (new_decoded_pad), bin);
|
|
g_signal_handlers_disconnect_by_func (decoder,
|
|
(gpointer) (no_more_pads), bin);
|
|
g_signal_handlers_disconnect_by_func (decoder,
|
|
(gpointer) (unknown_type), bin);
|
|
|
|
gst_element_set_state (decoder, GST_STATE_NULL);
|
|
gst_bin_remove (GST_BIN_CAST (bin), decoder);
|
|
}
|
|
g_slist_free (bin->decoders);
|
|
bin->decoders = NULL;
|
|
}
|
|
|
|
static GstElement *
|
|
make_decoder (GstPlayBaseBin * play_base_bin)
|
|
{
|
|
GstElement *decoder;
|
|
|
|
/* now create the decoder element */
|
|
if (g_getenv ("USE_DECODEBIN2"))
|
|
decoder = gst_element_factory_make ("decodebin2", NULL);
|
|
else
|
|
decoder = gst_element_factory_make ("decodebin", NULL);
|
|
if (!decoder)
|
|
goto no_decodebin;
|
|
|
|
g_signal_connect (decoder, "element-added",
|
|
G_CALLBACK (decodebin_element_added_cb), play_base_bin);
|
|
g_signal_connect (decoder, "element-removed",
|
|
G_CALLBACK (decodebin_element_removed_cb), play_base_bin);
|
|
|
|
gst_bin_add (GST_BIN_CAST (play_base_bin), decoder);
|
|
|
|
/* set up callbacks to create the links between decoded data
|
|
* and video/audio/subtitle rendering/output. */
|
|
g_signal_connect (G_OBJECT (decoder),
|
|
"new-decoded-pad", G_CALLBACK (new_decoded_pad), play_base_bin);
|
|
g_signal_connect (G_OBJECT (decoder), "no-more-pads",
|
|
G_CALLBACK (no_more_pads), play_base_bin);
|
|
g_signal_connect (G_OBJECT (decoder),
|
|
"unknown-type", G_CALLBACK (unknown_type), play_base_bin);
|
|
g_object_set_data (G_OBJECT (decoder), "pending", GINT_TO_POINTER (1));
|
|
play_base_bin->pending++;
|
|
|
|
GST_DEBUG_OBJECT (play_base_bin, "created decodebin, %d pending",
|
|
play_base_bin->pending);
|
|
|
|
play_base_bin->decoders = g_slist_prepend (play_base_bin->decoders, decoder);
|
|
|
|
return decoder;
|
|
|
|
/* ERRORS */
|
|
no_decodebin:
|
|
{
|
|
GST_ELEMENT_ERROR (play_base_bin, CORE, MISSING_PLUGIN,
|
|
(_("Could not create \"decodebin\" element.")), (NULL));
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
remove_source (GstPlayBaseBin * 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 (G_OBJECT (source), bin->src_np_sig_id);
|
|
bin->src_np_sig_id = 0;
|
|
}
|
|
if (bin->src_nmp_sig_id) {
|
|
g_signal_handler_disconnect (G_OBJECT (source), bin->src_nmp_sig_id);
|
|
bin->src_nmp_sig_id = 0;
|
|
}
|
|
gst_bin_remove (GST_BIN_CAST (bin), source);
|
|
bin->source = NULL;
|
|
}
|
|
}
|
|
|
|
static GstBusSyncReply
|
|
subbin_startup_sync_msg (GstBus * bus, GstMessage * msg, gpointer user_data)
|
|
{
|
|
if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ERROR) {
|
|
GstPlayBaseBin *play_base_bin;
|
|
|
|
play_base_bin = GST_PLAY_BASE_BIN (user_data);
|
|
if (!play_base_bin->subtitle_done) {
|
|
GST_WARNING_OBJECT (play_base_bin, "error starting up subtitle bin: %"
|
|
GST_PTR_FORMAT, msg);
|
|
play_base_bin->subtitle_done = TRUE;
|
|
GST_DEBUG_OBJECT (play_base_bin, "signal group done");
|
|
GROUP_SIGNAL (play_base_bin);
|
|
GST_DEBUG_OBJECT (play_base_bin, "signaled group done");
|
|
}
|
|
}
|
|
return GST_BUS_PASS;
|
|
}
|
|
|
|
/* 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 (GstPlayBaseBin * play_base_bin)
|
|
{
|
|
GstElement *subbin = NULL;
|
|
gboolean is_raw, have_out, is_dynamic;
|
|
|
|
if (!play_base_bin->need_rebuild)
|
|
return TRUE;
|
|
play_base_bin->raw_decoding_mode = FALSE;
|
|
|
|
GST_DEBUG_OBJECT (play_base_bin, "setup source");
|
|
|
|
/* delete old src */
|
|
remove_source (play_base_bin);
|
|
|
|
/* create and configure an element that can handle the uri */
|
|
if (!(play_base_bin->source = gen_source_element (play_base_bin, &subbin)))
|
|
goto no_source;
|
|
|
|
/* 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 (play_base_bin), play_base_bin->source);
|
|
g_object_notify (G_OBJECT (play_base_bin), "source");
|
|
|
|
/* remove the old decoders now, if any */
|
|
remove_decoders (play_base_bin);
|
|
|
|
/* remove our previous preroll queues */
|
|
remove_groups (play_base_bin);
|
|
|
|
/* clear pending dynamic elements */
|
|
play_base_bin->pending = 0;
|
|
|
|
/* do subs */
|
|
if (subbin) {
|
|
GstElement *db;
|
|
GstBus *bus;
|
|
|
|
play_base_bin->subtitle = subbin;
|
|
db = gst_bin_get_by_name (GST_BIN_CAST (subbin), "subtitle-decoder");
|
|
|
|
/* do type detection, without adding (so no preroll) */
|
|
g_signal_connect (G_OBJECT (db), "new-decoded-pad",
|
|
G_CALLBACK (subs_new_decoded_pad), play_base_bin);
|
|
g_signal_connect (G_OBJECT (db), "no-more-pads",
|
|
G_CALLBACK (sub_no_more_pads), play_base_bin);
|
|
g_signal_connect (G_OBJECT (db), "unknown-type",
|
|
G_CALLBACK (unknown_type), play_base_bin);
|
|
g_object_set_data (G_OBJECT (db), "pending", GINT_TO_POINTER (1));
|
|
play_base_bin->pending++;
|
|
|
|
GST_DEBUG_OBJECT (play_base_bin, "we have subtitles, %d pending",
|
|
play_base_bin->pending);
|
|
|
|
if (!play_base_bin->is_stream) {
|
|
GstStateChangeReturn sret;
|
|
|
|
/* either when the queues are filled or when the decoder element
|
|
* has no more dynamic streams, the cond is unlocked. We can remove
|
|
* the signal handlers then
|
|
*/
|
|
GST_DEBUG_OBJECT (play_base_bin, "starting subtitle bin");
|
|
|
|
/* for subtitles in a separate bin we will not commit the
|
|
* current building group since we need to add the other
|
|
* audio/video streams to the group. We check if we managed
|
|
* to commit the subtitle group using an extra flag. */
|
|
play_base_bin->subtitle_done = FALSE;
|
|
|
|
/* since subbin is still a stand-alone bin, we need to add a custom bus
|
|
* to intercept error messages, so we can stop waiting and continue */
|
|
bus = gst_bus_new ();
|
|
gst_element_set_bus (subbin, bus);
|
|
gst_bus_set_sync_handler (bus, subbin_startup_sync_msg, play_base_bin);
|
|
|
|
sret = gst_element_set_state (subbin, GST_STATE_PAUSED);
|
|
if (sret != GST_STATE_CHANGE_FAILURE) {
|
|
GROUP_LOCK (play_base_bin);
|
|
GST_DEBUG ("waiting for subtitle to complete...");
|
|
while (!play_base_bin->subtitle_done)
|
|
GROUP_WAIT (play_base_bin);
|
|
GST_DEBUG ("group done !");
|
|
GROUP_UNLOCK (play_base_bin);
|
|
|
|
if (!play_base_bin->building_group ||
|
|
play_base_bin->building_group->type[GST_STREAM_TYPE_TEXT -
|
|
1].npads == 0) {
|
|
|
|
GST_DEBUG ("No subtitle found - ignoring");
|
|
gst_element_set_state (subbin, GST_STATE_NULL);
|
|
gst_object_unref (play_base_bin->subtitle);
|
|
play_base_bin->subtitle = NULL;
|
|
} else {
|
|
GST_DEBUG_OBJECT (play_base_bin, "Subtitle set-up successful");
|
|
}
|
|
} else {
|
|
GST_WARNING_OBJECT (play_base_bin, "Failed to start subtitle bin");
|
|
gst_element_set_state (subbin, GST_STATE_NULL);
|
|
gst_object_unref (play_base_bin->subtitle);
|
|
play_base_bin->subtitle = NULL;
|
|
}
|
|
|
|
gst_bus_set_sync_handler (bus, NULL, NULL);
|
|
gst_element_set_bus (subbin, NULL);
|
|
gst_object_unref (bus);
|
|
}
|
|
gst_object_unref (db);
|
|
}
|
|
/* 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 (play_base_bin, &is_raw, &have_out, &is_dynamic))
|
|
goto invalid_source;
|
|
|
|
if (is_raw) {
|
|
GST_DEBUG_OBJECT (play_base_bin, "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. */
|
|
group_commit (play_base_bin, play_base_bin->is_stream, FALSE);
|
|
return TRUE;
|
|
}
|
|
if (!have_out && !is_dynamic) {
|
|
GST_DEBUG_OBJECT (play_base_bin, "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 (play_base_bin->source, play_base_bin);
|
|
group_commit (play_base_bin, play_base_bin->is_stream, FALSE);
|
|
return TRUE;
|
|
}
|
|
if (is_dynamic) {
|
|
/* connect a handler for the new-pad signal */
|
|
play_base_bin->src_np_sig_id =
|
|
g_signal_connect (G_OBJECT (play_base_bin->source), "pad-added",
|
|
G_CALLBACK (source_new_pad), play_base_bin);
|
|
play_base_bin->src_nmp_sig_id =
|
|
g_signal_connect (G_OBJECT (play_base_bin->source), "no-more-pads",
|
|
G_CALLBACK (source_no_more_pads), play_base_bin);
|
|
g_object_set_data (G_OBJECT (play_base_bin->source), "pending",
|
|
GINT_TO_POINTER (1));
|
|
play_base_bin->pending++;
|
|
GST_DEBUG_OBJECT (play_base_bin,
|
|
"Source has dynamic output pads, %d pending", play_base_bin->pending);
|
|
} else {
|
|
GstElement *decoder;
|
|
|
|
/* no dynamic source, we can link now */
|
|
decoder = make_decoder (play_base_bin);
|
|
if (!decoder)
|
|
goto no_decodebin;
|
|
|
|
if (!gst_element_link (play_base_bin->source, decoder))
|
|
goto could_not_link;
|
|
}
|
|
|
|
if (play_base_bin->subtitle)
|
|
gst_bin_add (GST_BIN_CAST (play_base_bin), play_base_bin->subtitle);
|
|
|
|
play_base_bin->need_rebuild = FALSE;
|
|
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
no_source:
|
|
{
|
|
/* error message was already posted */
|
|
return FALSE;
|
|
}
|
|
invalid_source:
|
|
{
|
|
GST_ELEMENT_ERROR (play_base_bin, CORE, FAILED,
|
|
(_("Source element is invalid.")), (NULL));
|
|
return FALSE;
|
|
}
|
|
no_decodebin:
|
|
{
|
|
/* message was posted */
|
|
return FALSE;
|
|
}
|
|
could_not_link:
|
|
{
|
|
GST_ELEMENT_ERROR (play_base_bin, CORE, NEGOTIATION,
|
|
(NULL), ("Can't link source to decoder element"));
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static void
|
|
finish_source (GstPlayBaseBin * play_base_bin)
|
|
{
|
|
/* FIXME: no need to grab the group lock here? (tpm) */
|
|
if (get_active_group (play_base_bin) != NULL) {
|
|
if (play_base_bin->subtitle) {
|
|
/* make subs iterate from now on */
|
|
gst_bin_add (GST_BIN_CAST (play_base_bin), play_base_bin->subtitle);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Caller must have group-lock held.
|
|
*
|
|
* We iterate over all detected streams in the streaminfo and try to find
|
|
* impossible cases, like subtitles without video.
|
|
*/
|
|
static gboolean
|
|
prepare_output (GstPlayBaseBin * play_base_bin)
|
|
{
|
|
const GList *item;
|
|
gboolean stream_found = FALSE, no_media = FALSE;
|
|
gboolean got_video = FALSE, got_subtitle = FALSE;
|
|
GstPlayBaseGroup *group;
|
|
|
|
group = get_active_group (play_base_bin);
|
|
|
|
/* check if we found any supported stream... if not, then
|
|
* we detected stream type (or the above would've failed),
|
|
* but linking/decoding failed - plugin probably missing. */
|
|
for (item = group ? group->streaminfo : NULL; item != NULL; item = item->next) {
|
|
GstStreamInfo *info = GST_STREAM_INFO (item->data);
|
|
|
|
if (info->type == GST_STREAM_TYPE_VIDEO) {
|
|
stream_found = TRUE;
|
|
got_video = TRUE;
|
|
break;
|
|
} else if (info->type == GST_STREAM_TYPE_ELEMENT) {
|
|
stream_found = TRUE;
|
|
} else if (info->type == GST_STREAM_TYPE_AUDIO) {
|
|
stream_found = TRUE;
|
|
} else if (info->type == GST_STREAM_TYPE_TEXT ||
|
|
info->type == GST_STREAM_TYPE_SUBPICTURE) {
|
|
got_subtitle = TRUE;
|
|
} else if (!item->prev && !item->next) {
|
|
/* We're no audio/video and the only stream... We could
|
|
* be something not-media that's detected because then our
|
|
* typefind doesn't mess up with mp3 (bz2, gz, elf, ...) */
|
|
if (info->caps && !gst_caps_is_empty (info->caps)) {
|
|
const gchar *mime =
|
|
gst_structure_get_name (gst_caps_get_structure (info->caps, 0));
|
|
|
|
no_media = IS_NO_MEDIA_MIME (mime);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!stream_found) {
|
|
if (got_subtitle) {
|
|
GST_ELEMENT_ERROR (play_base_bin, STREAM, WRONG_TYPE,
|
|
(_("Only a subtitle stream was detected. "
|
|
"Either you are loading a subtitle file or some other type of "
|
|
"text file, or the media file was not recognized.")), (NULL));
|
|
} else if (!no_media) {
|
|
GST_ELEMENT_ERROR (play_base_bin, STREAM, CODEC_NOT_FOUND,
|
|
(_("You do not have a decoder installed to handle this file. "
|
|
"You might need to install the necessary plugins.")), (NULL));
|
|
} else {
|
|
GST_ELEMENT_ERROR (play_base_bin, STREAM, WRONG_TYPE,
|
|
(_("This is not a media file")), (NULL));
|
|
}
|
|
return FALSE;
|
|
} else if (got_subtitle && !got_video) {
|
|
GST_ELEMENT_ERROR (play_base_bin, STREAM, WRONG_TYPE,
|
|
(_("A subtitle stream was detected, but no video stream.")), (NULL));
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* Multi-stream management. -1 = none.
|
|
*
|
|
* Caller has group-lock held.
|
|
*/
|
|
static gint
|
|
get_active_source (GstPlayBaseBin * play_base_bin, GstStreamType type)
|
|
{
|
|
GstPlayBaseGroup *group;
|
|
GList *s;
|
|
gint num = 0;
|
|
|
|
group = get_active_group (play_base_bin);
|
|
if (!group)
|
|
return -1;
|
|
|
|
for (s = group->streaminfo; s; s = s->next) {
|
|
GstStreamInfo *info = s->data;
|
|
|
|
if (info->type == type) {
|
|
if (!info->mute && !g_object_get_data (G_OBJECT (info), "mute_probe")) {
|
|
return num;
|
|
} else {
|
|
num++;
|
|
}
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
/* Kill pad reactivation on state change. */
|
|
|
|
#if 0
|
|
static void muted_group_change_state (GstElement * element,
|
|
gint old_state, gint new_state, gpointer data);
|
|
#endif
|
|
|
|
static void
|
|
mute_group_type (GstPlayBaseGroup * group, GstStreamType type, gboolean mute)
|
|
{
|
|
gboolean active = !mute;
|
|
GstPad *pad;
|
|
|
|
pad = gst_element_get_static_pad (group->type[type - 1].preroll, "src");
|
|
gst_pad_set_active (pad, active);
|
|
gst_object_unref (pad);
|
|
pad = gst_element_get_static_pad (group->type[type - 1].preroll, "sink");
|
|
gst_pad_set_active (pad, active);
|
|
gst_object_unref (pad);
|
|
pad = gst_element_get_static_pad (group->type[type - 1].selector, "src");
|
|
gst_pad_set_active (pad, active);
|
|
gst_object_unref (pad);
|
|
|
|
#if 0
|
|
if (mute) {
|
|
g_signal_connect (group->type[type - 1].preroll, "state-changed",
|
|
G_CALLBACK (muted_group_change_state), group);
|
|
} else {
|
|
g_signal_handlers_disconnect_by_func (group->type[type - 1].preroll,
|
|
G_CALLBACK (muted_group_change_state), group);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
#if 0
|
|
static void
|
|
muted_group_change_state (GstElement * element,
|
|
gint old_state, gint new_state, gpointer data)
|
|
{
|
|
GstPlayBaseGroup *group = data;
|
|
|
|
GROUP_LOCK (group->bin);
|
|
|
|
if (new_state == GST_STATE_PLAYING) {
|
|
gint n;
|
|
|
|
for (n = 0; n < NUM_TYPES; n++) {
|
|
if (group->type[n].selector == element) {
|
|
mute_group_type (group, n + 1, TRUE);
|
|
}
|
|
}
|
|
}
|
|
|
|
GROUP_UNLOCK (group->bin);
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
set_subtitles_visible (GstPlayBaseBin * play_base_bin, gboolean visible)
|
|
{
|
|
GstPlayBaseBinClass *klass = GST_PLAY_BASE_BIN_GET_CLASS (play_base_bin);
|
|
|
|
/* we use a vfunc for this since we don't have a reference to the
|
|
* textoverlay element, but playbin does */
|
|
if (klass != NULL && klass->set_subtitles_visible != NULL)
|
|
klass->set_subtitles_visible (play_base_bin, visible);
|
|
}
|
|
|
|
static void
|
|
set_audio_mute (GstPlayBaseBin * play_base_bin, gboolean mute)
|
|
{
|
|
GstPlayBaseBinClass *klass = GST_PLAY_BASE_BIN_GET_CLASS (play_base_bin);
|
|
|
|
/* we use a vfunc for this since we don't have a reference to the
|
|
* textoverlay element, but playbin does */
|
|
if (klass != NULL && klass->set_audio_mute != NULL)
|
|
klass->set_audio_mute (play_base_bin, mute);
|
|
}
|
|
|
|
/*
|
|
* Caller has group-lock held.
|
|
*/
|
|
|
|
static void
|
|
set_active_source (GstPlayBaseBin * play_base_bin,
|
|
GstStreamType type, gint source_num)
|
|
{
|
|
GstPlayBaseGroup *group;
|
|
GList *s;
|
|
gint num = 0;
|
|
gboolean have_active = FALSE;
|
|
GstElement *sel;
|
|
|
|
GST_LOG ("Changing active source of type %d to %d", type, source_num);
|
|
play_base_bin->current[type - 1] = source_num;
|
|
|
|
group = get_active_group (play_base_bin);
|
|
if (!group || !group->type[type - 1].preroll) {
|
|
GST_LOG ("No active group, or group for type %d has no preroll", type);
|
|
return;
|
|
}
|
|
|
|
/* HACK: instead of unlinking the subtitle input (= lots of hassle,
|
|
* especially if subtitles come from an external source), just tell
|
|
* textoverlay not to render them */
|
|
if (type == GST_STREAM_TYPE_TEXT) {
|
|
gboolean visible = (source_num != -1);
|
|
|
|
set_subtitles_visible (play_base_bin, visible);
|
|
if (!visible)
|
|
return;
|
|
} else if (type == GST_STREAM_TYPE_AUDIO) {
|
|
gboolean mute = (source_num == -1);
|
|
|
|
set_audio_mute (play_base_bin, mute);
|
|
|
|
if (mute)
|
|
return;
|
|
}
|
|
|
|
sel = group->type[type - 1].selector;
|
|
|
|
for (s = group->streaminfo; s; s = s->next) {
|
|
GstStreamInfo *info = s->data;
|
|
|
|
if (info->type == type) {
|
|
if (num == source_num) {
|
|
GstPad *sel_pad;
|
|
|
|
GST_LOG ("Unmuting (if already muted) source %d of type %d", source_num,
|
|
type);
|
|
g_object_set (info, "mute", FALSE, NULL);
|
|
|
|
/* Tell the stream selector which pad to accept */
|
|
sel_pad = GST_PAD_CAST (g_object_get_data (G_OBJECT (info->object),
|
|
"pb_sel_pad"));
|
|
|
|
if (sel && sel_pad != NULL) {
|
|
g_object_set (G_OBJECT (sel), "active-pad", sel_pad, NULL);
|
|
}
|
|
|
|
have_active = TRUE;
|
|
} else {
|
|
guint id;
|
|
|
|
GST_LOG_OBJECT (info->object, "Muting source %d of type %d", num, type);
|
|
|
|
id = gst_pad_add_buffer_probe (GST_PAD_CAST (info->object),
|
|
G_CALLBACK (mute_stream), info);
|
|
g_object_set_data (G_OBJECT (info), "mute_probe", GINT_TO_POINTER (id));
|
|
}
|
|
num++;
|
|
}
|
|
}
|
|
|
|
if (!have_active) {
|
|
GST_LOG ("Muting group type: %d", type);
|
|
g_object_set (sel, "active-pad", NULL, NULL);
|
|
} else {
|
|
GST_LOG ("Unmuting group type: %d", type);
|
|
}
|
|
mute_group_type (group, type, !have_active);
|
|
}
|
|
|
|
static void
|
|
gst_play_base_bin_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstPlayBaseBin *play_base_bin;
|
|
|
|
g_return_if_fail (GST_IS_PLAY_BASE_BIN (object));
|
|
|
|
play_base_bin = GST_PLAY_BASE_BIN (object);
|
|
|
|
switch (prop_id) {
|
|
case ARG_URI:
|
|
{
|
|
const gchar *uri = g_value_get_string (value);
|
|
|
|
if (uri == NULL) {
|
|
g_warning ("cannot set NULL uri");
|
|
return;
|
|
}
|
|
/* if we have no previous uri, or the new uri is different from the
|
|
* old one, replug */
|
|
if (play_base_bin->uri == NULL || strcmp (play_base_bin->uri, uri) != 0) {
|
|
g_free (play_base_bin->uri);
|
|
play_base_bin->uri = g_strdup (uri);
|
|
|
|
GST_DEBUG ("setting new uri to %s", uri);
|
|
|
|
play_base_bin->need_rebuild = TRUE;
|
|
}
|
|
break;
|
|
}
|
|
case ARG_SUBURI:{
|
|
const gchar *suburi = g_value_get_string (value);
|
|
|
|
if ((!suburi && !play_base_bin->suburi) ||
|
|
(suburi && play_base_bin->suburi &&
|
|
!strcmp (play_base_bin->suburi, suburi)))
|
|
return;
|
|
g_free (play_base_bin->suburi);
|
|
play_base_bin->suburi = g_strdup (suburi);
|
|
GST_DEBUG ("setting new .sub uri to %s", suburi);
|
|
play_base_bin->need_rebuild = TRUE;
|
|
break;
|
|
}
|
|
case ARG_QUEUE_SIZE:
|
|
play_base_bin->queue_size = g_value_get_uint64 (value);
|
|
break;
|
|
case ARG_QUEUE_THRESHOLD:
|
|
play_base_bin->queue_threshold = g_value_get_uint64 (value);
|
|
break;
|
|
case ARG_QUEUE_MIN_THRESHOLD:
|
|
play_base_bin->queue_min_threshold = g_value_get_uint64 (value);
|
|
break;
|
|
case ARG_CONNECTION_SPEED:
|
|
play_base_bin->connection_speed = g_value_get_uint (value) * 1000;
|
|
break;
|
|
case ARG_VIDEO:
|
|
GROUP_LOCK (play_base_bin);
|
|
set_active_source (play_base_bin,
|
|
GST_STREAM_TYPE_VIDEO, g_value_get_int (value));
|
|
GROUP_UNLOCK (play_base_bin);
|
|
break;
|
|
case ARG_AUDIO:
|
|
GROUP_LOCK (play_base_bin);
|
|
set_active_source (play_base_bin,
|
|
GST_STREAM_TYPE_AUDIO, g_value_get_int (value));
|
|
GROUP_UNLOCK (play_base_bin);
|
|
break;
|
|
case ARG_TEXT:
|
|
GROUP_LOCK (play_base_bin);
|
|
set_active_source (play_base_bin,
|
|
GST_STREAM_TYPE_TEXT, g_value_get_int (value));
|
|
GROUP_UNLOCK (play_base_bin);
|
|
break;
|
|
case ARG_SUBTITLE_ENCODING:
|
|
{
|
|
const gchar *encoding;
|
|
GSList *list;
|
|
|
|
encoding = g_value_get_string (value);
|
|
if (encoding && play_base_bin->subencoding &&
|
|
!strcmp (play_base_bin->subencoding, encoding)) {
|
|
return;
|
|
}
|
|
if (encoding == NULL && play_base_bin->subencoding == NULL)
|
|
return;
|
|
|
|
g_mutex_lock (play_base_bin->sub_lock);
|
|
g_free (play_base_bin->subencoding);
|
|
play_base_bin->subencoding = g_strdup (encoding);
|
|
list = g_slist_copy (play_base_bin->subtitle_elements);
|
|
g_slist_foreach (list, (GFunc) gst_object_ref, NULL);
|
|
g_mutex_unlock (play_base_bin->sub_lock);
|
|
|
|
/* we can't hold a lock when calling g_object_set() on a child, since
|
|
* the notify event will trigger GstObject to send a deep-notify event
|
|
* which will try to take the lock ... */
|
|
g_slist_foreach (list, (GFunc) set_encoding_element, (gpointer) encoding);
|
|
g_slist_foreach (list, (GFunc) gst_object_unref, NULL);
|
|
g_slist_free (list);
|
|
break;
|
|
}
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_play_base_bin_get_property (GObject * object, guint prop_id, GValue * value,
|
|
GParamSpec * pspec)
|
|
{
|
|
GstPlayBaseBin *play_base_bin;
|
|
|
|
g_return_if_fail (GST_IS_PLAY_BASE_BIN (object));
|
|
|
|
play_base_bin = GST_PLAY_BASE_BIN (object);
|
|
|
|
switch (prop_id) {
|
|
case ARG_URI:
|
|
g_value_set_string (value, play_base_bin->uri);
|
|
break;
|
|
case ARG_SUBURI:
|
|
g_value_set_string (value, play_base_bin->suburi);
|
|
break;
|
|
case ARG_NSTREAMS:
|
|
{
|
|
GstPlayBaseGroup *group;
|
|
|
|
GROUP_LOCK (play_base_bin);
|
|
group = get_active_group (play_base_bin);
|
|
if (group) {
|
|
g_value_set_int (value, group->nstreams);
|
|
} else {
|
|
g_value_set_int (value, 0);
|
|
}
|
|
GROUP_UNLOCK (play_base_bin);
|
|
break;
|
|
}
|
|
case ARG_QUEUE_SIZE:
|
|
g_value_set_uint64 (value, play_base_bin->queue_size);
|
|
break;
|
|
case ARG_QUEUE_THRESHOLD:
|
|
g_value_set_uint64 (value, play_base_bin->queue_threshold);
|
|
break;
|
|
case ARG_QUEUE_MIN_THRESHOLD:
|
|
g_value_set_uint64 (value, play_base_bin->queue_min_threshold);
|
|
break;
|
|
case ARG_CONNECTION_SPEED:
|
|
g_value_set_uint (value, play_base_bin->connection_speed / 1000);
|
|
break;
|
|
case ARG_STREAMINFO:
|
|
/* FIXME: hold some kind of lock here, use iterator */
|
|
g_value_set_pointer (value,
|
|
(gpointer) gst_play_base_bin_get_streaminfo (play_base_bin));
|
|
break;
|
|
case ARG_STREAMINFO_VALUES:{
|
|
GValueArray *copy;
|
|
|
|
copy = gst_play_base_bin_get_streaminfo_value_array (play_base_bin);
|
|
g_value_take_boxed (value, copy);
|
|
break;
|
|
}
|
|
case ARG_SOURCE:
|
|
g_value_set_object (value, play_base_bin->source);
|
|
break;
|
|
case ARG_VIDEO:
|
|
GROUP_LOCK (play_base_bin);
|
|
g_value_set_int (value, get_active_source (play_base_bin,
|
|
GST_STREAM_TYPE_VIDEO));
|
|
GROUP_UNLOCK (play_base_bin);
|
|
break;
|
|
case ARG_AUDIO:
|
|
GROUP_LOCK (play_base_bin);
|
|
g_value_set_int (value, get_active_source (play_base_bin,
|
|
GST_STREAM_TYPE_AUDIO));
|
|
GROUP_UNLOCK (play_base_bin);
|
|
break;
|
|
case ARG_TEXT:
|
|
GROUP_LOCK (play_base_bin);
|
|
g_value_set_int (value, get_active_source (play_base_bin,
|
|
GST_STREAM_TYPE_TEXT));
|
|
GROUP_UNLOCK (play_base_bin);
|
|
break;
|
|
case ARG_SUBTITLE_ENCODING:
|
|
GST_OBJECT_LOCK (play_base_bin);
|
|
g_value_set_string (value, play_base_bin->subencoding);
|
|
GST_OBJECT_UNLOCK (play_base_bin);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_play_base_bin_change_state (GstElement * element, GstStateChange transition)
|
|
{
|
|
GstStateChangeReturn ret;
|
|
GstPlayBaseBin *play_base_bin;
|
|
|
|
play_base_bin = GST_PLAY_BASE_BIN (element);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
if (!setup_source (play_base_bin))
|
|
goto source_failed;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
if (ret == GST_STATE_CHANGE_FAILURE)
|
|
goto cleanup_groups;
|
|
|
|
finish_source (play_base_bin);
|
|
break;
|
|
/* clean-up in both cases, READY=>NULL clean-up is if there was an error */
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
case GST_STATE_CHANGE_READY_TO_NULL:
|
|
play_base_bin->need_rebuild = TRUE;
|
|
remove_decoders (play_base_bin);
|
|
remove_groups (play_base_bin);
|
|
remove_source (play_base_bin);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return ret;
|
|
|
|
/* ERRORS */
|
|
source_failed:
|
|
{
|
|
play_base_bin->need_rebuild = TRUE;
|
|
|
|
return GST_STATE_CHANGE_FAILURE;
|
|
}
|
|
cleanup_groups:
|
|
{
|
|
/* clean up leftover groups */
|
|
remove_groups (play_base_bin);
|
|
play_base_bin->need_rebuild = TRUE;
|
|
|
|
return GST_STATE_CHANGE_FAILURE;
|
|
}
|
|
}
|
|
|
|
static const GList *
|
|
gst_play_base_bin_get_streaminfo (GstPlayBaseBin * play_base_bin)
|
|
{
|
|
GstPlayBaseGroup *group = get_active_group (play_base_bin);
|
|
GList *info = NULL;
|
|
|
|
if (group) {
|
|
info = group->streaminfo;
|
|
}
|
|
return info;
|
|
}
|
|
|
|
static GValueArray *
|
|
gst_play_base_bin_get_streaminfo_value_array (GstPlayBaseBin * play_base_bin)
|
|
{
|
|
GstPlayBaseGroup *group;
|
|
GValueArray *array = NULL;
|
|
|
|
GROUP_LOCK (play_base_bin);
|
|
group = get_active_group (play_base_bin);
|
|
if (group) {
|
|
array = g_value_array_copy (group->streaminfo_value_array);
|
|
} else {
|
|
array = g_value_array_new (0);
|
|
}
|
|
GROUP_UNLOCK (play_base_bin);
|
|
|
|
return array;
|
|
}
|