--- /dev/null
+/* GStreamer
+ * Copyright (C) <2007> Wim Taymans <wim.taymans@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/**
+ * SECTION:element-playbin2
+ *
+ * Playbin2 provides a stand-alone everything-in-one abstraction for an
+ * audio and/or video player.
+ *
+ * playbin2 is considered stable now. It is the prefered playback API now,
+ * and replaces the old #playbin element, which is no longer supported.
+ *
+ * It can handle both audio and video files and features
+ * <itemizedlist>
+ * <listitem>
+ * automatic file type recognition and based on that automatic
+ * selection and usage of the right audio/video/subtitle demuxers/decoders
+ * </listitem>
+ * <listitem>
+ * visualisations for audio files
+ * </listitem>
+ * <listitem>
+ * subtitle support for video files. Subtitles can be store in external
+ * files.
+ * </listitem>
+ * <listitem>
+ * stream selection between different video/audio/subtitles streams
+ * </listitem>
+ * <listitem>
+ * meta info (tag) extraction
+ * </listitem>
+ * <listitem>
+ * easy access to the last video frame
+ * </listitem>
+ * <listitem>
+ * buffering when playing streams over a network
+ * </listitem>
+ * <listitem>
+ * volume control with mute option
+ * </listitem>
+ * </itemizedlist>
+ *
+ * <refsect2>
+ * <title>Usage</title>
+ * <para>
+ * A playbin2 element can be created just like any other element using
+ * gst_element_factory_make(). The file/URI to play should be set via the #GstPlayBin2:uri
+ * property. This must be an absolute URI, relative file paths are not allowed.
+ * Example URIs are file:///home/joe/movie.avi or http://www.joedoe.com/foo.ogg
+ *
+ * Playbin is a #GstPipeline. It will notify the application of everything
+ * that's happening (errors, end of stream, tags found, state changes, etc.)
+ * by posting messages on its #GstBus. The application needs to watch the
+ * bus.
+ *
+ * Playback can be initiated by setting the element to PLAYING state using
+ * gst_element_set_state(). Note that the state change will take place in
+ * the background in a separate thread, when the function returns playback
+ * is probably not happening yet and any errors might not have occured yet.
+ * Applications using playbin should ideally be written to deal with things
+ * completely asynchroneous.
+ *
+ * When playback has finished (an EOS message has been received on the bus)
+ * or an error has occured (an ERROR message has been received on the bus) or
+ * the user wants to play a different track, playbin should be set back to
+ * READY or NULL state, then the #GstPlayBin2:uri property should be set to the
+ * new location and then playbin be set to PLAYING state again.
+ *
+ * Seeking can be done using gst_element_seek_simple() or gst_element_seek()
+ * on the playbin element. Again, the seek will not be executed
+ * instantaneously, but will be done in a background thread. When the seek
+ * call returns the seek will most likely still be in process. An application
+ * may wait for the seek to finish (or fail) using gst_element_get_state() with
+ * -1 as the timeout, but this will block the user interface and is not
+ * recommended at all.
+ *
+ * Applications may query the current position and duration of the stream
+ * via gst_element_query_position() and gst_element_query_duration() and
+ * setting the format passed to GST_FORMAT_TIME. If the query was successful,
+ * the duration or position will have been returned in units of nanoseconds.
+ * </para>
+ * </refsect2>
+ * <refsect2>
+ * <title>Advanced Usage: specifying the audio and video sink</title>
+ * <para>
+ * By default, if no audio sink or video sink has been specified via the
+ * #GstPlayBin2:audio-sink or #GstPlayBin2:video-sink property, playbin will use the autoaudiosink
+ * and autovideosink elements to find the first-best available output method.
+ * This should work in most cases, but is not always desirable. Often either
+ * the user or application might want to specify more explicitly what to use
+ * for audio and video output.
+ *
+ * If the application wants more control over how audio or video should be
+ * output, it may create the audio/video sink elements itself (for example
+ * using gst_element_factory_make()) and provide them to playbin using the
+ * #GstPlayBin2:audio-sink or #GstPlayBin2:video-sink property.
+ *
+ * GNOME-based applications, for example, will usually want to create
+ * gconfaudiosink and gconfvideosink elements and make playbin use those,
+ * so that output happens to whatever the user has configured in the GNOME
+ * Multimedia System Selector configuration dialog.
+ *
+ * The sink elements do not necessarily need to be ready-made sinks. It is
+ * possible to create container elements that look like a sink to playbin,
+ * but in reality contain a number of custom elements linked together. This
+ * can be achieved by creating a #GstBin and putting elements in there and
+ * linking them, and then creating a sink #GstGhostPad for the bin and pointing
+ * it to the sink pad of the first element within the bin. This can be used
+ * for a number of purposes, for example to force output to a particular
+ * format or to modify or observe the data before it is output.
+ *
+ * It is also possible to 'suppress' audio and/or video output by using
+ * 'fakesink' elements (or capture it from there using the fakesink element's
+ * "handoff" signal, which, nota bene, is fired from the streaming thread!).
+ * </para>
+ * </refsect2>
+ * <refsect2>
+ * <title>Retrieving Tags and Other Meta Data</title>
+ * <para>
+ * Most of the common meta data (artist, title, etc.) can be retrieved by
+ * watching for TAG messages on the pipeline's bus (see above).
+ *
+ * Other more specific meta information like width/height/framerate of video
+ * streams or samplerate/number of channels of audio streams can be obtained
+ * from the negotiated caps on the sink pads of the sinks.
+ * </para>
+ * </refsect2>
+ * <refsect2>
+ * <title>Buffering</title>
+ * Playbin handles buffering automatically for the most part, but applications
+ * need to handle parts of the buffering process as well. Whenever playbin is
+ * buffering, it will post BUFFERING messages on the bus with a percentage
+ * value that shows the progress of the buffering process. Applications need
+ * to set playbin to PLAYING or PAUSED state in response to these messages.
+ * They may also want to convey the buffering progress to the user in some
+ * way. Here is how to extract the percentage information from the message
+ * (requires GStreamer >= 0.10.11):
+ * |[
+ * switch (GST_MESSAGE_TYPE (msg)) {
+ * case GST_MESSAGE_BUFFERING: {
+ * gint percent = 0;
+ * gst_message_parse_buffering (msg, &percent);
+ * g_print ("Buffering (%%u percent done)", percent);
+ * break;
+ * }
+ * ...
+ * }
+ * ]|
+ * Note that applications should keep/set the pipeline in the PAUSED state when
+ * a BUFFERING message is received with a buffer percent value < 100 and set
+ * the pipeline back to PLAYING state when a BUFFERING message with a value
+ * of 100 percent is received (if PLAYING is the desired state, that is).
+ * </refsect2>
+ * <refsect2>
+ * <title>Embedding the video window in your application</title>
+ * By default, playbin (or rather the video sinks used) will create their own
+ * window. Applications will usually want to force output to a window of their
+ * own, however. This can be done using the #GstXOverlay interface, which most
+ * video sinks implement. See the documentation there for more details.
+ * </refsect2>
+ * <refsect2>
+ * <title>Specifying which CD/DVD device to use</title>
+ * The device to use for CDs/DVDs needs to be set on the source element
+ * playbin creates before it is opened. The only way to do this at the moment
+ * is to connect to playbin's "notify::source" signal, which will be emitted
+ * by playbin when it has created the source element for a particular URI.
+ * In the signal callback you can check if the source element has a "device"
+ * property and set it appropriately. In future ways might be added to specify
+ * the device as part of the URI, but at the time of writing this is not
+ * possible yet.
+ * </refsect2>
+ * <refsect2>
+ * <title>Handling redirects</title>
+ * <para>
+ * Some elements may post 'redirect' messages on the bus to tell the
+ * application to open another location. These are element messages containing
+ * a structure named 'redirect' along with a 'new-location' field of string
+ * type. The new location may be a relative or an absolute URI. Examples
+ * for such redirects can be found in many quicktime movie trailers.
+ * </para>
+ * </refsect2>
+ * <refsect2>
+ * <title>Examples</title>
+ * |[
+ * gst-launch -v playbin uri=file:///path/to/somefile.avi
+ * ]| This will play back the given AVI video file, given that the video and
+ * audio decoders required to decode the content are installed. Since no
+ * special audio sink or video sink is supplied (not possible via gst-launch),
+ * playbin will try to find a suitable audio and video sink automatically
+ * using the autoaudiosink and autovideosink elements.
+ * |[
+ * gst-launch -v playbin uri=cdda://4
+ * ]| This will play back track 4 on an audio CD in your disc drive (assuming
+ * the drive is detected automatically by the plugin).
+ * |[
+ * gst-launch -v playbin uri=dvd://1
+ * ]| This will play back title 1 of a DVD in your disc drive (assuming
+ * the drive is detected automatically by the plugin).
+ * </refsect2>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <string.h>
+#include <gst/gst.h>
+
+#include <gst/gst-i18n-plugin.h>
+#include <gst/pbutils/pbutils.h>
+#include <gst/interfaces/streamvolume.h>
+
+#include "gstplay-enum.h"
+#include "gstplay-marshal.h"
+#include "gstplayback.h"
+#include "gstplaysink.h"
+#include "gstsubtitleoverlay.h"
+
+GST_DEBUG_CATEGORY_STATIC (gst_play_bin_debug);
+#define GST_CAT_DEFAULT gst_play_bin_debug
+
+#define GST_TYPE_PLAY_BIN (gst_play_bin_get_type())
+#define GST_PLAY_BIN(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PLAY_BIN,GstPlayBin))
+#define GST_PLAY_BIN_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PLAY_BIN,GstPlayBinClass))
+#define GST_IS_PLAY_BIN(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PLAY_BIN))
+#define GST_IS_PLAY_BIN_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PLAY_BIN))
+
+#define VOLUME_MAX_DOUBLE 10.0
+
+typedef struct _GstPlayBin GstPlayBin;
+typedef struct _GstPlayBinClass GstPlayBinClass;
+typedef struct _GstSourceGroup GstSourceGroup;
+typedef struct _GstSourceSelect GstSourceSelect;
+
+typedef GstCaps *(*SourceSelectGetMediaCapsFunc) (void);
+
+/* has the info for a selector and provides the link to the sink */
+struct _GstSourceSelect
+{
+ const gchar *media_list[8]; /* the media types for the selector */
+ SourceSelectGetMediaCapsFunc get_media_caps; /* more complex caps for the selector */
+ GstPlaySinkType type; /* the sink pad type of the selector */
+
+ GstElement *selector; /* the selector */
+ GPtrArray *channels;
+ GstPad *srcpad; /* the source pad of the selector */
+ GstPad *sinkpad; /* the sinkpad of the sink when the selector
+ * is linked
+ */
+ GstEvent *sinkpad_delayed_event;
+ gulong sinkpad_data_probe;
+};
+
+#define GST_SOURCE_GROUP_GET_LOCK(group) (((GstSourceGroup*)(group))->lock)
+#define GST_SOURCE_GROUP_LOCK(group) (g_mutex_lock (GST_SOURCE_GROUP_GET_LOCK(group)))
+#define GST_SOURCE_GROUP_UNLOCK(group) (g_mutex_unlock (GST_SOURCE_GROUP_GET_LOCK(group)))
+
+/* a structure to hold the objects for decoding a uri and the subtitle uri
+ */
+struct _GstSourceGroup
+{
+ GstPlayBin *playbin;
+
+ GMutex *lock;
+
+ gboolean valid; /* the group has valid info to start playback */
+ gboolean active; /* the group is active */
+
+ /* properties */
+ gchar *uri;
+ gchar *suburi;
+ GValueArray *streaminfo;
+ GstElement *source;
+
+ GPtrArray *video_channels; /* links to selector pads */
+ GPtrArray *audio_channels; /* links to selector pads */
+ GPtrArray *text_channels; /* links to selector pads */
+
+ GstElement *audio_sink; /* autoplugged audio and video sinks */
+ GstElement *video_sink;
+
+ /* uridecodebins for uri and subtitle uri */
+ GstElement *uridecodebin;
+ GstElement *suburidecodebin;
+ gint pending;
+ gboolean sub_pending;
+
+ gulong pad_added_id;
+ gulong pad_removed_id;
+ gulong no_more_pads_id;
+ gulong notify_source_id;
+ gulong drained_id;
+ gulong autoplug_factories_id;
+ gulong autoplug_select_id;
+ gulong autoplug_continue_id;
+
+ gulong sub_pad_added_id;
+ gulong sub_pad_removed_id;
+ gulong sub_no_more_pads_id;
+ gulong sub_autoplug_continue_id;
+
+ GMutex *stream_changed_pending_lock;
+ GList *stream_changed_pending;
+
+ /* selectors for different streams */
+ GstSourceSelect selector[GST_PLAY_SINK_TYPE_LAST];
+};
+
+#define GST_PLAY_BIN_GET_LOCK(bin) (&((GstPlayBin*)(bin))->lock)
+#define GST_PLAY_BIN_LOCK(bin) (g_static_rec_mutex_lock (GST_PLAY_BIN_GET_LOCK(bin)))
+#define GST_PLAY_BIN_UNLOCK(bin) (g_static_rec_mutex_unlock (GST_PLAY_BIN_GET_LOCK(bin)))
+
+/* lock to protect dynamic callbacks, like no-more-pads */
+#define GST_PLAY_BIN_DYN_LOCK(bin) g_mutex_lock ((bin)->dyn_lock)
+#define GST_PLAY_BIN_DYN_UNLOCK(bin) g_mutex_unlock ((bin)->dyn_lock)
+
+/* lock for shutdown */
+#define GST_PLAY_BIN_SHUTDOWN_LOCK(bin,label) \
+G_STMT_START { \
+ if (G_UNLIKELY (g_atomic_int_get (&bin->shutdown))) \
+ goto label; \
+ GST_PLAY_BIN_DYN_LOCK (bin); \
+ if (G_UNLIKELY (g_atomic_int_get (&bin->shutdown))) { \
+ GST_PLAY_BIN_DYN_UNLOCK (bin); \
+ goto label; \
+ } \
+} G_STMT_END
+
+/* unlock for shutdown */
+#define GST_PLAY_BIN_SHUTDOWN_UNLOCK(bin) \
+ GST_PLAY_BIN_DYN_UNLOCK (bin); \
+
+/**
+ * GstPlayBin2:
+ *
+ * playbin element structure
+ */
+struct _GstPlayBin
+{
+ GstPipeline parent;
+
+ GStaticRecMutex lock; /* to protect group switching */
+
+ /* the groups, we use a double buffer to switch between current and next */
+ GstSourceGroup groups[2]; /* array with group info */
+ GstSourceGroup *curr_group; /* pointer to the currently playing group */
+ GstSourceGroup *next_group; /* pointer to the next group */
+
+ /* properties */
+ guint connection_speed; /* connection speed in bits/sec (0 = unknown) */
+ gint current_video; /* the currently selected stream */
+ gint current_audio; /* the currently selected stream */
+ gint current_text; /* the currently selected stream */
+
+ guint64 buffer_duration; /* When buffering, the max buffer duration (ns) */
+ guint buffer_size; /* When buffering, the max buffer size (bytes) */
+
+ /* our play sink */
+ GstPlaySink *playsink;
+
+ /* the last activated source */
+ GstElement *source;
+
+ /* lock protecting dynamic adding/removing */
+ GMutex *dyn_lock;
+ /* if we are shutting down or not */
+ gint shutdown;
+
+ GMutex *elements_lock;
+ guint32 elements_cookie;
+ GList *elements; /* factories we can use for selecting elements */
+
+ gboolean have_selector; /* set to FALSE when we fail to create an
+ * input-selector, so that we only post a
+ * warning once */
+
+ GstElement *audio_sink; /* configured audio sink, or NULL */
+ GstElement *video_sink; /* configured video sink, or NULL */
+ GstElement *text_sink; /* configured text sink, or NULL */
+
+ struct
+ {
+ gboolean valid;
+ GstFormat format;
+ gint64 duration;
+ } duration[5]; /* cached durations */
+
+ guint64 ring_buffer_max_size; /* 0 means disabled */
+};
+
+struct _GstPlayBinClass
+{
+ GstPipelineClass parent_class;
+
+ /* notify app that the current uri finished decoding and it is possible to
+ * queue a new one for gapless playback */
+ void (*about_to_finish) (GstPlayBin * playbin);
+
+ /* notify app that number of audio/video/text streams changed */
+ void (*video_changed) (GstPlayBin * playbin);
+ void (*audio_changed) (GstPlayBin * playbin);
+ void (*text_changed) (GstPlayBin * playbin);
+
+ /* notify app that the tags of audio/video/text streams changed */
+ void (*video_tags_changed) (GstPlayBin * playbin, gint stream);
+ void (*audio_tags_changed) (GstPlayBin * playbin, gint stream);
+ void (*text_tags_changed) (GstPlayBin * playbin, gint stream);
+
+ /* get audio/video/text tags for a stream */
+ GstTagList *(*get_video_tags) (GstPlayBin * playbin, gint stream);
+ GstTagList *(*get_audio_tags) (GstPlayBin * playbin, gint stream);
+ GstTagList *(*get_text_tags) (GstPlayBin * playbin, gint stream);
+
+ /* get the last video frame and convert it to the given caps */
+ GstBuffer *(*convert_frame) (GstPlayBin * playbin, GstCaps * caps);
+
+ /* get audio/video/text pad for a stream */
+ GstPad *(*get_video_pad) (GstPlayBin * playbin, gint stream);
+ GstPad *(*get_audio_pad) (GstPlayBin * playbin, gint stream);
+ GstPad *(*get_text_pad) (GstPlayBin * playbin, gint stream);
+};
+
+/* props */
+#define DEFAULT_URI NULL
+#define DEFAULT_SUBURI NULL
+#define DEFAULT_SOURCE NULL
+#define DEFAULT_FLAGS GST_PLAY_FLAG_AUDIO | GST_PLAY_FLAG_VIDEO | GST_PLAY_FLAG_TEXT | \
+ GST_PLAY_FLAG_SOFT_VOLUME
+#define DEFAULT_N_VIDEO 0
+#define DEFAULT_CURRENT_VIDEO -1
+#define DEFAULT_N_AUDIO 0
+#define DEFAULT_CURRENT_AUDIO -1
+#define DEFAULT_N_TEXT 0
+#define DEFAULT_CURRENT_TEXT -1
+#define DEFAULT_SUBTITLE_ENCODING NULL
+#define DEFAULT_AUDIO_SINK NULL
+#define DEFAULT_VIDEO_SINK NULL
+#define DEFAULT_VIS_PLUGIN NULL
+#define DEFAULT_TEXT_SINK NULL
+#define DEFAULT_VOLUME 1.0
+#define DEFAULT_MUTE FALSE
+#define DEFAULT_FRAME NULL
+#define DEFAULT_FONT_DESC NULL
+#define DEFAULT_CONNECTION_SPEED 0
+#define DEFAULT_BUFFER_DURATION -1
+#define DEFAULT_BUFFER_SIZE -1
+#define DEFAULT_RING_BUFFER_MAX_SIZE 0
+
+enum
+{
+ PROP_0,
+ PROP_URI,
+ PROP_SUBURI,
+ PROP_SOURCE,
+ PROP_FLAGS,
+ PROP_N_VIDEO,
+ PROP_CURRENT_VIDEO,
+ PROP_N_AUDIO,
+ PROP_CURRENT_AUDIO,
+ PROP_N_TEXT,
+ PROP_CURRENT_TEXT,
+ PROP_SUBTITLE_ENCODING,
+ PROP_AUDIO_SINK,
+ PROP_VIDEO_SINK,
+ PROP_VIS_PLUGIN,
+ PROP_TEXT_SINK,
+ PROP_VOLUME,
+ PROP_MUTE,
+ PROP_FRAME,
+ PROP_FONT_DESC,
+ PROP_CONNECTION_SPEED,
+ PROP_BUFFER_SIZE,
+ PROP_BUFFER_DURATION,
+ PROP_AV_OFFSET,
+ PROP_RING_BUFFER_MAX_SIZE,
+ PROP_LAST
+};
+
+/* signals */
+enum
+{
+ SIGNAL_ABOUT_TO_FINISH,
+ SIGNAL_CONVERT_FRAME,
+ SIGNAL_VIDEO_CHANGED,
+ SIGNAL_AUDIO_CHANGED,
+ SIGNAL_TEXT_CHANGED,
+ SIGNAL_VIDEO_TAGS_CHANGED,
+ SIGNAL_AUDIO_TAGS_CHANGED,
+ SIGNAL_TEXT_TAGS_CHANGED,
+ SIGNAL_GET_VIDEO_TAGS,
+ SIGNAL_GET_AUDIO_TAGS,
+ SIGNAL_GET_TEXT_TAGS,
+ SIGNAL_GET_VIDEO_PAD,
+ SIGNAL_GET_AUDIO_PAD,
+ SIGNAL_GET_TEXT_PAD,
+ SIGNAL_SOURCE_SETUP,
+ LAST_SIGNAL
+};
+
+static void gst_play_bin_class_init (GstPlayBinClass * klass);
+static void gst_play_bin_init (GstPlayBin * playbin);
+static void gst_play_bin_finalize (GObject * object);
+
+static void gst_play_bin_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * spec);
+static void gst_play_bin_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * spec);
+
+static GstStateChangeReturn gst_play_bin_change_state (GstElement * element,
+ GstStateChange transition);
+
+static void gst_play_bin_handle_message (GstBin * bin, GstMessage * message);
+static gboolean gst_play_bin_query (GstElement * element, GstQuery * query);
+
+static GstTagList *gst_play_bin_get_video_tags (GstPlayBin * playbin,
+ gint stream);
+static GstTagList *gst_play_bin_get_audio_tags (GstPlayBin * playbin,
+ gint stream);
+static GstTagList *gst_play_bin_get_text_tags (GstPlayBin * playbin,
+ gint stream);
+
+static GstBuffer *gst_play_bin_convert_frame (GstPlayBin * playbin,
+ GstCaps * caps);
+
+static GstPad *gst_play_bin_get_video_pad (GstPlayBin * playbin, gint stream);
+static GstPad *gst_play_bin_get_audio_pad (GstPlayBin * playbin, gint stream);
+static GstPad *gst_play_bin_get_text_pad (GstPlayBin * playbin, gint stream);
+
+static gboolean setup_next_source (GstPlayBin * playbin, GstState target);
+
+static void no_more_pads_cb (GstElement * decodebin, GstSourceGroup * group);
+static void pad_removed_cb (GstElement * decodebin, GstPad * pad,
+ GstSourceGroup * group);
+
+static void gst_play_bin_suburidecodebin_block (GstElement * suburidecodebin,
+ gboolean block);
+static void gst_play_bin_suburidecodebin_seek_to_start (GstElement *
+ suburidecodebin);
+
+static GstElementClass *parent_class;
+
+static guint gst_play_bin_signals[LAST_SIGNAL] = { 0 };
+
+#define REMOVE_SIGNAL(obj,id) \
+if (id) { \
+ g_signal_handler_disconnect (obj, id); \
+ id = 0; \
+}
+
+static GType
+gst_play_bin_get_type (void)
+{
+ static GType gst_play_bin_type = 0;
+
+ if (!gst_play_bin_type) {
+ static const GTypeInfo gst_play_bin_info = {
+ sizeof (GstPlayBinClass),
+ NULL,
+ NULL,
+ (GClassInitFunc) gst_play_bin_class_init,
+ NULL,
+ NULL,
+ sizeof (GstPlayBin),
+ 0,
+ (GInstanceInitFunc) gst_play_bin_init,
+ NULL
+ };
+ static const GInterfaceInfo svol_info = {
+ NULL, NULL, NULL
+ };
+
+ gst_play_bin_type = g_type_register_static (GST_TYPE_PIPELINE,
+ "GstPlayBin2", &gst_play_bin_info, 0);
+
+ g_type_add_interface_static (gst_play_bin_type, GST_TYPE_STREAM_VOLUME,
+ &svol_info);
+ }
+
+ return gst_play_bin_type;
+}
+
+static void
+gst_play_bin_class_init (GstPlayBinClass * klass)
+{
+ GObjectClass *gobject_klass;
+ GstElementClass *gstelement_klass;
+ GstBinClass *gstbin_klass;
+
+ gobject_klass = (GObjectClass *) klass;
+ gstelement_klass = (GstElementClass *) klass;
+ gstbin_klass = (GstBinClass *) klass;
+
+ parent_class = g_type_class_peek_parent (klass);
+
+ gobject_klass->set_property = gst_play_bin_set_property;
+ gobject_klass->get_property = gst_play_bin_get_property;
+
+ gobject_klass->finalize = gst_play_bin_finalize;
+
+ /**
+ * GstPlayBin2:uri
+ *
+ * Set the next URI that playbin will play. This property can be set from the
+ * about-to-finish signal to queue the next media file.
+ */
+ g_object_class_install_property (gobject_klass, PROP_URI,
+ g_param_spec_string ("uri", "URI", "URI of the media to play",
+ NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ /**
+ * GstPlayBin2:suburi
+ *
+ * Set the next subtitle URI that playbin will play. This property can be
+ * set from the about-to-finish signal to queue the next subtitle media file.
+ */
+ g_object_class_install_property (gobject_klass, PROP_SUBURI,
+ g_param_spec_string ("suburi", ".sub-URI", "Optional URI of a subtitle",
+ NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_klass, PROP_SOURCE,
+ g_param_spec_object ("source", "Source", "Source element",
+ GST_TYPE_ELEMENT, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+
+ /**
+ * GstPlayBin2:flags
+ *
+ * Control the behaviour of playbin.
+ */
+ g_object_class_install_property (gobject_klass, PROP_FLAGS,
+ g_param_spec_flags ("flags", "Flags", "Flags to control behaviour",
+ GST_TYPE_PLAY_FLAGS, DEFAULT_FLAGS,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ /**
+ * GstPlayBin2:n-video
+ *
+ * Get the total number of available video streams.
+ */
+ g_object_class_install_property (gobject_klass, PROP_N_VIDEO,
+ g_param_spec_int ("n-video", "Number Video",
+ "Total number of video streams", 0, G_MAXINT, 0,
+ G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+ /**
+ * GstPlayBin2:current-video
+ *
+ * Get or set the currently playing video stream. By default the first video
+ * stream with data is played.
+ */
+ g_object_class_install_property (gobject_klass, PROP_CURRENT_VIDEO,
+ g_param_spec_int ("current-video", "Current Video",
+ "Currently playing video stream (-1 = auto)",
+ -1, G_MAXINT, -1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ /**
+ * GstPlayBin2:n-audio
+ *
+ * Get the total number of available audio streams.
+ */
+ g_object_class_install_property (gobject_klass, PROP_N_AUDIO,
+ g_param_spec_int ("n-audio", "Number Audio",
+ "Total number of audio streams", 0, G_MAXINT, 0,
+ G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+ /**
+ * GstPlayBin2:current-audio
+ *
+ * Get or set the currently playing audio stream. By default the first audio
+ * stream with data is played.
+ */
+ g_object_class_install_property (gobject_klass, PROP_CURRENT_AUDIO,
+ g_param_spec_int ("current-audio", "Current audio",
+ "Currently playing audio stream (-1 = auto)",
+ -1, G_MAXINT, -1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ /**
+ * GstPlayBin2:n-text
+ *
+ * Get the total number of available subtitle streams.
+ */
+ g_object_class_install_property (gobject_klass, PROP_N_TEXT,
+ g_param_spec_int ("n-text", "Number Text",
+ "Total number of text streams", 0, G_MAXINT, 0,
+ G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+ /**
+ * GstPlayBin2:current-text:
+ *
+ * Get or set the currently playing subtitle stream. By default the first
+ * subtitle stream with data is played.
+ */
+ g_object_class_install_property (gobject_klass, PROP_CURRENT_TEXT,
+ g_param_spec_int ("current-text", "Current Text",
+ "Currently playing text stream (-1 = auto)",
+ -1, G_MAXINT, -1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_klass, PROP_SUBTITLE_ENCODING,
+ g_param_spec_string ("subtitle-encoding", "subtitle encoding",
+ "Encoding to assume if input subtitles are not in UTF-8 encoding. "
+ "If not set, the GST_SUBTITLE_ENCODING environment variable will "
+ "be checked for an encoding to use. If that is not set either, "
+ "ISO-8859-15 will be assumed.", NULL,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_klass, PROP_VIDEO_SINK,
+ g_param_spec_object ("video-sink", "Video Sink",
+ "the video output element to use (NULL = default sink)",
+ GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (gobject_klass, PROP_AUDIO_SINK,
+ g_param_spec_object ("audio-sink", "Audio Sink",
+ "the audio output element to use (NULL = default sink)",
+ GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (gobject_klass, PROP_VIS_PLUGIN,
+ g_param_spec_object ("vis-plugin", "Vis plugin",
+ "the visualization element to use (NULL = default)",
+ GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (gobject_klass, PROP_TEXT_SINK,
+ g_param_spec_object ("text-sink", "Text plugin",
+ "the text output element to use (NULL = default textoverlay)",
+ GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ /**
+ * GstPlayBin2:volume:
+ *
+ * Get or set the current audio stream volume. 1.0 means 100%,
+ * 0.0 means mute. This uses a linear volume scale.
+ *
+ */
+ g_object_class_install_property (gobject_klass, PROP_VOLUME,
+ g_param_spec_double ("volume", "Volume", "The audio volume, 1.0=100%",
+ 0.0, VOLUME_MAX_DOUBLE, 1.0,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (gobject_klass, PROP_MUTE,
+ g_param_spec_boolean ("mute", "Mute",
+ "Mute the audio channel without changing the volume", FALSE,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ /**
+ * GstPlayBin2:frame:
+ * @playbin: a #GstPlayBin2
+ *
+ * Get the currently rendered or prerolled frame in the video sink.
+ * The #GstCaps on the buffer will describe the format of the buffer.
+ */
+ g_object_class_install_property (gobject_klass, PROP_FRAME,
+ gst_param_spec_mini_object ("frame", "Frame",
+ "The last frame (NULL = no video available)",
+ GST_TYPE_BUFFER, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (gobject_klass, PROP_FONT_DESC,
+ g_param_spec_string ("subtitle-font-desc",
+ "Subtitle font description",
+ "Pango font description of font "
+ "to be used for subtitle rendering", NULL,
+ G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_klass, PROP_CONNECTION_SPEED,
+ g_param_spec_uint ("connection-speed", "Connection Speed",
+ "Network connection speed in kbps (0 = unknown)",
+ 0, G_MAXUINT / 1000, DEFAULT_CONNECTION_SPEED,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_klass, PROP_BUFFER_SIZE,
+ g_param_spec_int ("buffer-size", "Buffer size (bytes)",
+ "Buffer size when buffering network streams",
+ -1, G_MAXINT, DEFAULT_BUFFER_SIZE,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (gobject_klass, PROP_BUFFER_DURATION,
+ g_param_spec_int64 ("buffer-duration", "Buffer duration (ns)",
+ "Buffer duration when buffering network streams",
+ -1, G_MAXINT64, DEFAULT_BUFFER_DURATION,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ /**
+ * GstPlayBin2:av-offset:
+ *
+ * Control the synchronisation offset between the audio and video streams.
+ * Positive values make the audio ahead of the video and negative values make
+ * the audio go behind the video.
+ *
+ * Since: 0.10.30
+ */
+ g_object_class_install_property (gobject_klass, PROP_AV_OFFSET,
+ g_param_spec_int64 ("av-offset", "AV Offset",
+ "The synchronisation offset between audio and video in nanoseconds",
+ G_MININT64, G_MAXINT64, 0,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ /**
+ * GstQueue2:ring-buffer-max-size
+ *
+ * The maximum size of the ring buffer in bytes. If set to 0, the ring
+ * buffer is disabled. Default 0.
+ *
+ * Since: 0.10.31
+ */
+ g_object_class_install_property (gobject_klass, PROP_RING_BUFFER_MAX_SIZE,
+ g_param_spec_uint64 ("ring-buffer-max-size",
+ "Max. ring buffer size (bytes)",
+ "Max. amount of data in the ring buffer (bytes, 0 = ring buffer disabled)",
+ 0, G_MAXUINT, DEFAULT_RING_BUFFER_MAX_SIZE,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ /**
+ * GstPlayBin2::about-to-finish
+ * @playbin: a #GstPlayBin2
+ *
+ * This signal is emitted when the current uri is about to finish. You can
+ * set the uri and suburi to make sure that playback continues.
+ */
+ gst_play_bin_signals[SIGNAL_ABOUT_TO_FINISH] =
+ g_signal_new ("about-to-finish", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GstPlayBinClass, about_to_finish), NULL, NULL,
+ gst_marshal_VOID__VOID, G_TYPE_NONE, 0, G_TYPE_NONE);
+
+ /**
+ * GstPlayBin2::video-changed
+ * @playbin: a #GstPlayBin2
+ *
+ * This signal is emitted whenever the number or order of the video
+ * streams has changed. The application will most likely want to select
+ * a new video stream.
+ */
+ gst_play_bin_signals[SIGNAL_VIDEO_CHANGED] =
+ g_signal_new ("video-changed", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GstPlayBinClass, video_changed), NULL, NULL,
+ gst_marshal_VOID__VOID, G_TYPE_NONE, 0, G_TYPE_NONE);
+ /**
+ * GstPlayBin2::audio-changed
+ * @playbin: a #GstPlayBin2
+ *
+ * This signal is emitted whenever the number or order of the audio
+ * streams has changed. The application will most likely want to select
+ * a new audio stream.
+ */
+ gst_play_bin_signals[SIGNAL_AUDIO_CHANGED] =
+ g_signal_new ("audio-changed", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GstPlayBinClass, audio_changed), NULL, NULL,
+ gst_marshal_VOID__VOID, G_TYPE_NONE, 0, G_TYPE_NONE);
+ /**
+ * GstPlayBin2::text-changed
+ * @playbin: a #GstPlayBin2
+ *
+ * This signal is emitted whenever the number or order of the text
+ * streams has changed. The application will most likely want to select
+ * a new text stream.
+ */
+ gst_play_bin_signals[SIGNAL_TEXT_CHANGED] =
+ g_signal_new ("text-changed", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GstPlayBinClass, text_changed), NULL, NULL,
+ gst_marshal_VOID__VOID, G_TYPE_NONE, 0, G_TYPE_NONE);
+
+ /**
+ * GstPlayBin2::video-tags-changed
+ * @playbin: a #GstPlayBin2
+ * @stream: stream index with changed tags
+ *
+ * This signal is emitted whenever the tags of a video stream have changed.
+ * The application will most likely want to get the new tags.
+ *
+ * Since: 0.10.24
+ */
+ gst_play_bin_signals[SIGNAL_VIDEO_TAGS_CHANGED] =
+ g_signal_new ("video-tags-changed", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GstPlayBinClass, video_tags_changed), NULL, NULL,
+ gst_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT);
+
+ /**
+ * GstPlayBin2::audio-tags-changed
+ * @playbin: a #GstPlayBin2
+ * @stream: stream index with changed tags
+ *
+ * This signal is emitted whenever the tags of an audio stream have changed.
+ * The application will most likely want to get the new tags.
+ *
+ * Since: 0.10.24
+ */
+ gst_play_bin_signals[SIGNAL_AUDIO_TAGS_CHANGED] =
+ g_signal_new ("audio-tags-changed", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GstPlayBinClass, audio_tags_changed), NULL, NULL,
+ gst_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT);
+
+ /**
+ * GstPlayBin2::text-tags-changed
+ * @playbin: a #GstPlayBin2
+ * @stream: stream index with changed tags
+ *
+ * This signal is emitted whenever the tags of a text stream have changed.
+ * The application will most likely want to get the new tags.
+ *
+ * Since: 0.10.24
+ */
+ gst_play_bin_signals[SIGNAL_TEXT_TAGS_CHANGED] =
+ g_signal_new ("text-tags-changed", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GstPlayBinClass, text_tags_changed), NULL, NULL,
+ gst_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT);
+
+ /**
+ * GstPlayBin2::source-setup:
+ * @playbin: a #GstPlayBin2
+ * @source: source element
+ *
+ * This signal is emitted after the source element has been created, so
+ * it can be configured by setting additional properties (e.g. set a
+ * proxy server for an http source, or set the device and read speed for
+ * an audio cd source). This is functionally equivalent to connecting to
+ * the notify::source signal, but more convenient.
+ *
+ * Since: 0.10.33
+ */
+ gst_play_bin_signals[SIGNAL_SOURCE_SETUP] =
+ g_signal_new ("source-setup", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST, 0, NULL, NULL,
+ gst_marshal_VOID__OBJECT, G_TYPE_NONE, 1, GST_TYPE_ELEMENT);
+
+ /**
+ * GstPlayBin2::get-video-tags
+ * @playbin: a #GstPlayBin2
+ * @stream: a video stream number
+ *
+ * Action signal to retrieve the tags of a specific video stream number.
+ * This information can be used to select a stream.
+ *
+ * Returns: a GstTagList with tags or NULL when the stream number does not
+ * exist.
+ */
+ gst_play_bin_signals[SIGNAL_GET_VIDEO_TAGS] =
+ g_signal_new ("get-video-tags", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (GstPlayBinClass, get_video_tags), NULL, NULL,
+ gst_play_marshal_BOXED__INT, GST_TYPE_TAG_LIST, 1, G_TYPE_INT);
+ /**
+ * GstPlayBin2::get-audio-tags
+ * @playbin: a #GstPlayBin2
+ * @stream: an audio stream number
+ *
+ * Action signal to retrieve the tags of a specific audio stream number.
+ * This information can be used to select a stream.
+ *
+ * Returns: a GstTagList with tags or NULL when the stream number does not
+ * exist.
+ */
+ gst_play_bin_signals[SIGNAL_GET_AUDIO_TAGS] =
+ g_signal_new ("get-audio-tags", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (GstPlayBinClass, get_audio_tags), NULL, NULL,
+ gst_play_marshal_BOXED__INT, GST_TYPE_TAG_LIST, 1, G_TYPE_INT);
+ /**
+ * GstPlayBin2::get-text-tags
+ * @playbin: a #GstPlayBin2
+ * @stream: a text stream number
+ *
+ * Action signal to retrieve the tags of a specific text stream number.
+ * This information can be used to select a stream.
+ *
+ * Returns: a GstTagList with tags or NULL when the stream number does not
+ * exist.
+ */
+ gst_play_bin_signals[SIGNAL_GET_TEXT_TAGS] =
+ g_signal_new ("get-text-tags", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (GstPlayBinClass, get_text_tags), NULL, NULL,
+ gst_play_marshal_BOXED__INT, GST_TYPE_TAG_LIST, 1, G_TYPE_INT);
+ /**
+ * GstPlayBin2::convert-frame
+ * @playbin: a #GstPlayBin2
+ * @caps: the target format of the frame
+ *
+ * Action signal to retrieve the currently playing video frame in the format
+ * specified by @caps.
+ * If @caps is %NULL, no conversion will be performed and this function is
+ * equivalent to the #GstPlayBin::frame property.
+ *
+ * Returns: a #GstBuffer of the current video frame converted to #caps.
+ * The caps on the buffer will describe the final layout of the buffer data.
+ * %NULL is returned when no current buffer can be retrieved or when the
+ * conversion failed.
+ */
+ gst_play_bin_signals[SIGNAL_CONVERT_FRAME] =
+ g_signal_new ("convert-frame", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (GstPlayBinClass, convert_frame), NULL, NULL,
+ gst_play_marshal_BUFFER__BOXED, GST_TYPE_BUFFER, 1, GST_TYPE_CAPS);
+
+ /**
+ * GstPlayBin2::get-video-pad
+ * @playbin: a #GstPlayBin2
+ * @stream: a video stream number
+ *
+ * Action signal to retrieve the stream-selector sinkpad for a specific
+ * video stream.
+ * This pad can be used for notifications of caps changes, stream-specific
+ * queries, etc.
+ *
+ * Returns: a #GstPad, or NULL when the stream number does not exist.
+ */
+ gst_play_bin_signals[SIGNAL_GET_VIDEO_PAD] =
+ g_signal_new ("get-video-pad", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (GstPlayBinClass, get_video_pad), NULL, NULL,
+ gst_play_marshal_OBJECT__INT, GST_TYPE_PAD, 1, G_TYPE_INT);
+ /**
+ * GstPlayBin2::get-audio-pad
+ * @playbin: a #GstPlayBin2
+ * @stream: an audio stream number
+ *
+ * Action signal to retrieve the stream-selector sinkpad for a specific
+ * audio stream.
+ * This pad can be used for notifications of caps changes, stream-specific
+ * queries, etc.
+ *
+ * Returns: a #GstPad, or NULL when the stream number does not exist.
+ */
+ gst_play_bin_signals[SIGNAL_GET_AUDIO_PAD] =
+ g_signal_new ("get-audio-pad", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (GstPlayBinClass, get_audio_pad), NULL, NULL,
+ gst_play_marshal_OBJECT__INT, GST_TYPE_PAD, 1, G_TYPE_INT);
+ /**
+ * GstPlayBin2::get-text-pad
+ * @playbin: a #GstPlayBin2
+ * @stream: a text stream number
+ *
+ * Action signal to retrieve the stream-selector sinkpad for a specific
+ * text stream.
+ * This pad can be used for notifications of caps changes, stream-specific
+ * queries, etc.
+ *
+ * Returns: a #GstPad, or NULL when the stream number does not exist.
+ */
+ gst_play_bin_signals[SIGNAL_GET_TEXT_PAD] =
+ g_signal_new ("get-text-pad", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (GstPlayBinClass, get_text_pad), NULL, NULL,
+ gst_play_marshal_OBJECT__INT, GST_TYPE_PAD, 1, G_TYPE_INT);
+
+ klass->get_video_tags = gst_play_bin_get_video_tags;
+ klass->get_audio_tags = gst_play_bin_get_audio_tags;
+ klass->get_text_tags = gst_play_bin_get_text_tags;
+
+ klass->convert_frame = gst_play_bin_convert_frame;
+
+ klass->get_video_pad = gst_play_bin_get_video_pad;
+ klass->get_audio_pad = gst_play_bin_get_audio_pad;
+ klass->get_text_pad = gst_play_bin_get_text_pad;
+
+ gst_element_class_set_details_simple (gstelement_klass,
+ "Player Bin 2", "Generic/Bin/Player",
+ "Autoplug and play media from an uri",
+ "Wim Taymans <wim.taymans@gmail.com>");
+
+ gstelement_klass->change_state =
+ GST_DEBUG_FUNCPTR (gst_play_bin_change_state);
+ gstelement_klass->query = GST_DEBUG_FUNCPTR (gst_play_bin_query);
+
+ gstbin_klass->handle_message =
+ GST_DEBUG_FUNCPTR (gst_play_bin_handle_message);
+}
+
+static void
+init_group (GstPlayBin * playbin, GstSourceGroup * group)
+{
+ int n;
+
+ /* store the array for the different channels */
+ group->video_channels = g_ptr_array_new ();
+ group->audio_channels = g_ptr_array_new ();
+ group->text_channels = g_ptr_array_new ();
+ group->lock = g_mutex_new ();
+ /* init selectors. The selector is found by finding the first prefix that
+ * matches the media. */
+ group->playbin = playbin;
+ /* If you add any items to these lists, check that media_list[] is defined
+ * above to be large enough to hold MAX(items)+1, so as to accomodate a
+ * NULL terminator (set when the memory is zeroed on allocation) */
+ group->selector[0].media_list[0] = "audio/x-raw-";
+ group->selector[0].type = GST_PLAY_SINK_TYPE_AUDIO_RAW;
+ group->selector[0].channels = group->audio_channels;
+ group->selector[1].media_list[0] = "audio/";
+ group->selector[1].type = GST_PLAY_SINK_TYPE_AUDIO;
+ group->selector[1].channels = group->audio_channels;
+ group->selector[2].media_list[0] = "text/";
+ group->selector[2].media_list[1] = "application/x-subtitle";
+ group->selector[2].media_list[2] = "application/x-ssa";
+ group->selector[2].media_list[3] = "application/x-ass";
+ group->selector[2].media_list[4] = "video/x-dvd-subpicture";
+ group->selector[2].media_list[5] = "subpicture/";
+ group->selector[2].media_list[6] = "subtitle/";
+ group->selector[2].get_media_caps = gst_subtitle_overlay_create_factory_caps;
+ group->selector[2].type = GST_PLAY_SINK_TYPE_TEXT;
+ group->selector[2].channels = group->text_channels;
+ group->selector[3].media_list[0] = "video/x-raw-";
+ group->selector[3].type = GST_PLAY_SINK_TYPE_VIDEO_RAW;
+ group->selector[3].channels = group->video_channels;
+ group->selector[4].media_list[0] = "video/";
+ group->selector[4].type = GST_PLAY_SINK_TYPE_VIDEO;
+ group->selector[4].channels = group->video_channels;
+
+ for (n = 0; n < GST_PLAY_SINK_TYPE_LAST; n++) {
+ GstSourceSelect *select = &group->selector[n];
+ select->sinkpad_delayed_event = NULL;
+ select->sinkpad_data_probe = 0;
+ }
+}
+
+static void
+free_group (GstPlayBin * playbin, GstSourceGroup * group)
+{
+ int n;
+
+ for (n = 0; n < GST_PLAY_SINK_TYPE_LAST; n++) {
+ GstSourceSelect *select = &group->selector[n];
+ if (select->sinkpad && select->sinkpad_data_probe)
+ gst_pad_remove_data_probe (select->sinkpad, select->sinkpad_data_probe);
+ if (select->sinkpad_delayed_event)
+ gst_event_unref (select->sinkpad_delayed_event);
+ }
+
+ g_free (group->uri);
+ g_free (group->suburi);
+ g_ptr_array_free (group->video_channels, TRUE);
+ g_ptr_array_free (group->audio_channels, TRUE);
+ g_ptr_array_free (group->text_channels, TRUE);
+
+ g_mutex_free (group->lock);
+ if (group->audio_sink) {
+ if (group->audio_sink != playbin->audio_sink)
+ gst_element_set_state (group->audio_sink, GST_STATE_NULL);
+ gst_object_unref (group->audio_sink);
+ }
+ group->audio_sink = NULL;
+ if (group->video_sink) {
+ if (group->video_sink != playbin->video_sink)
+ gst_element_set_state (group->video_sink, GST_STATE_NULL);
+ gst_object_unref (group->video_sink);
+ }
+ group->video_sink = NULL;
+
+ g_list_free (group->stream_changed_pending);
+ group->stream_changed_pending = NULL;
+
+ if (group->stream_changed_pending_lock)
+ g_mutex_free (group->stream_changed_pending_lock);
+ group->stream_changed_pending_lock = NULL;
+}
+
+static void
+notify_volume_cb (GObject * selector, GParamSpec * pspec, GstPlayBin * playbin)
+{
+ g_object_notify (G_OBJECT (playbin), "volume");
+}
+
+static void
+notify_mute_cb (GObject * selector, GParamSpec * pspec, GstPlayBin * playbin)
+{
+ g_object_notify (G_OBJECT (playbin), "mute");
+}
+
+/* Must be called with elements lock! */
+static void
+gst_play_bin_update_elements_list (GstPlayBin * playbin)
+{
+ GList *res, *tmp;
+
+ if (!playbin->elements ||
+ playbin->elements_cookie !=
+ gst_default_registry_get_feature_list_cookie ()) {
+ if (playbin->elements)
+ gst_plugin_feature_list_free (playbin->elements);
+ res =
+ gst_element_factory_list_get_elements
+ (GST_ELEMENT_FACTORY_TYPE_DECODABLE, GST_RANK_MARGINAL);
+ tmp =
+ gst_element_factory_list_get_elements
+ (GST_ELEMENT_FACTORY_TYPE_AUDIOVIDEO_SINKS, GST_RANK_MARGINAL);
+ playbin->elements = g_list_concat (res, tmp);
+ playbin->elements =
+ g_list_sort (playbin->elements, gst_plugin_feature_rank_compare_func);
+ playbin->elements_cookie = gst_default_registry_get_feature_list_cookie ();
+ }
+}
+
+static void
+gst_play_bin_init (GstPlayBin * playbin)
+{
+ g_static_rec_mutex_init (&playbin->lock);
+ playbin->dyn_lock = g_mutex_new ();
+
+ /* assume we can create a selector */
+ playbin->have_selector = TRUE;
+
+ /* init groups */
+ playbin->curr_group = &playbin->groups[0];
+ playbin->next_group = &playbin->groups[1];
+ init_group (playbin, &playbin->groups[0]);
+ init_group (playbin, &playbin->groups[1]);
+
+ /* first filter out the interesting element factories */
+ playbin->elements_lock = g_mutex_new ();
+
+ /* add sink */
+ playbin->playsink = g_object_new (GST_TYPE_PLAY_SINK, NULL);
+ gst_bin_add (GST_BIN_CAST (playbin), GST_ELEMENT_CAST (playbin->playsink));
+ gst_play_sink_set_flags (playbin->playsink, DEFAULT_FLAGS);
+ /* Connect to notify::volume and notify::mute signals for proxying */
+ g_signal_connect (playbin->playsink, "notify::volume",
+ G_CALLBACK (notify_volume_cb), playbin);
+ g_signal_connect (playbin->playsink, "notify::mute",
+ G_CALLBACK (notify_mute_cb), playbin);
+
+ playbin->current_video = DEFAULT_CURRENT_VIDEO;
+ playbin->current_audio = DEFAULT_CURRENT_AUDIO;
+ playbin->current_text = DEFAULT_CURRENT_TEXT;
+
+ playbin->buffer_duration = DEFAULT_BUFFER_DURATION;
+ playbin->buffer_size = DEFAULT_BUFFER_SIZE;
+ playbin->ring_buffer_max_size = DEFAULT_RING_BUFFER_MAX_SIZE;
+}
+
+static void
+gst_play_bin_finalize (GObject * object)
+{
+ GstPlayBin *playbin;
+
+ playbin = GST_PLAY_BIN (object);
+
+ free_group (playbin, &playbin->groups[0]);
+ free_group (playbin, &playbin->groups[1]);
+
+ if (playbin->source)
+ gst_object_unref (playbin->source);
+ if (playbin->video_sink) {
+ gst_element_set_state (playbin->video_sink, GST_STATE_NULL);
+ gst_object_unref (playbin->video_sink);
+ }
+ if (playbin->audio_sink) {
+ gst_element_set_state (playbin->audio_sink, GST_STATE_NULL);
+ gst_object_unref (playbin->audio_sink);
+ }
+ if (playbin->text_sink) {
+ gst_element_set_state (playbin->text_sink, GST_STATE_NULL);
+ gst_object_unref (playbin->text_sink);
+ }
+
+ if (playbin->elements)
+ gst_plugin_feature_list_free (playbin->elements);
+
+ g_static_rec_mutex_free (&playbin->lock);
+ g_mutex_free (playbin->dyn_lock);
+ g_mutex_free (playbin->elements_lock);
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gst_play_bin_set_uri (GstPlayBin * playbin, const gchar * uri)
+{
+ GstSourceGroup *group;
+
+ if (uri == NULL) {
+ g_warning ("cannot set NULL uri");
+ return;
+ }
+
+ GST_PLAY_BIN_LOCK (playbin);
+ group = playbin->next_group;
+
+ GST_SOURCE_GROUP_LOCK (group);
+ /* store the uri in the next group we will play */
+ g_free (group->uri);
+ group->uri = g_strdup (uri);
+ group->valid = TRUE;
+ GST_SOURCE_GROUP_UNLOCK (group);
+
+ GST_DEBUG ("set new uri to %s", uri);
+ GST_PLAY_BIN_UNLOCK (playbin);
+}
+
+static void
+gst_play_bin_set_suburi (GstPlayBin * playbin, const gchar * suburi)
+{
+ GstSourceGroup *group;
+
+ GST_PLAY_BIN_LOCK (playbin);
+ group = playbin->next_group;
+
+ GST_SOURCE_GROUP_LOCK (group);
+ g_free (group->suburi);
+ group->suburi = g_strdup (suburi);
+ GST_SOURCE_GROUP_UNLOCK (group);
+
+ GST_DEBUG ("setting new .sub uri to %s", suburi);
+
+ GST_PLAY_BIN_UNLOCK (playbin);
+}
+
+static void
+gst_play_bin_set_flags (GstPlayBin * playbin, GstPlayFlags flags)
+{
+ gst_play_sink_set_flags (playbin->playsink, flags);
+ gst_play_sink_reconfigure (playbin->playsink);
+}
+
+static GstPlayFlags
+gst_play_bin_get_flags (GstPlayBin * playbin)
+{
+ GstPlayFlags flags;
+
+ flags = gst_play_sink_get_flags (playbin->playsink);
+
+ return flags;
+}
+
+/* get the currently playing group or if nothing is playing, the next
+ * group. Must be called with the PLAY_BIN_LOCK. */
+static GstSourceGroup *
+get_group (GstPlayBin * playbin)
+{
+ GstSourceGroup *result;
+
+ if (!(result = playbin->curr_group))
+ result = playbin->next_group;
+
+ return result;
+}
+
+static GstPad *
+gst_play_bin_get_video_pad (GstPlayBin * playbin, gint stream)
+{
+ GstPad *sinkpad = NULL;
+ GstSourceGroup *group;
+
+ GST_PLAY_BIN_LOCK (playbin);
+ group = get_group (playbin);
+ if (stream < group->video_channels->len) {
+ sinkpad = g_ptr_array_index (group->video_channels, stream);
+ gst_object_ref (sinkpad);
+ }
+ GST_PLAY_BIN_UNLOCK (playbin);
+
+ return sinkpad;
+}
+
+static GstPad *
+gst_play_bin_get_audio_pad (GstPlayBin * playbin, gint stream)
+{
+ GstPad *sinkpad = NULL;
+ GstSourceGroup *group;
+
+ GST_PLAY_BIN_LOCK (playbin);
+ group = get_group (playbin);
+ if (stream < group->audio_channels->len) {
+ sinkpad = g_ptr_array_index (group->audio_channels, stream);
+ gst_object_ref (sinkpad);
+ }
+ GST_PLAY_BIN_UNLOCK (playbin);
+
+ return sinkpad;
+}
+
+static GstPad *
+gst_play_bin_get_text_pad (GstPlayBin * playbin, gint stream)
+{
+ GstPad *sinkpad = NULL;
+ GstSourceGroup *group;
+
+ GST_PLAY_BIN_LOCK (playbin);
+ group = get_group (playbin);
+ if (stream < group->text_channels->len) {
+ sinkpad = g_ptr_array_index (group->text_channels, stream);
+ gst_object_ref (sinkpad);
+ }
+ GST_PLAY_BIN_UNLOCK (playbin);
+
+ return sinkpad;
+}
+
+
+static GstTagList *
+get_tags (GstPlayBin * playbin, GPtrArray * channels, gint stream)
+{
+ GstTagList *result;
+ GstPad *sinkpad;
+
+ if (!channels || stream >= channels->len)
+ return NULL;
+
+ sinkpad = g_ptr_array_index (channels, stream);
+ g_object_get (sinkpad, "tags", &result, NULL);
+
+ return result;
+}
+
+static GstTagList *
+gst_play_bin_get_video_tags (GstPlayBin * playbin, gint stream)
+{
+ GstTagList *result;
+ GstSourceGroup *group;
+
+ GST_PLAY_BIN_LOCK (playbin);
+ group = get_group (playbin);
+ result = get_tags (playbin, group->video_channels, stream);
+ GST_PLAY_BIN_UNLOCK (playbin);
+
+ return result;
+}
+
+static GstTagList *
+gst_play_bin_get_audio_tags (GstPlayBin * playbin, gint stream)
+{
+ GstTagList *result;
+ GstSourceGroup *group;
+
+ GST_PLAY_BIN_LOCK (playbin);
+ group = get_group (playbin);
+ result = get_tags (playbin, group->audio_channels, stream);
+ GST_PLAY_BIN_UNLOCK (playbin);
+
+ return result;
+}
+
+static GstTagList *
+gst_play_bin_get_text_tags (GstPlayBin * playbin, gint stream)
+{
+ GstTagList *result;
+ GstSourceGroup *group;
+
+ GST_PLAY_BIN_LOCK (playbin);
+ group = get_group (playbin);
+ result = get_tags (playbin, group->text_channels, stream);
+ GST_PLAY_BIN_UNLOCK (playbin);
+
+ return result;
+}
+
+static GstBuffer *
+gst_play_bin_convert_frame (GstPlayBin * playbin, GstCaps * caps)
+{
+ return gst_play_sink_convert_frame (playbin->playsink, caps);
+}
+
+/* Returns current stream number, or -1 if none has been selected yet */
+static int
+get_current_stream_number (GstPlayBin * playbin, GPtrArray * channels)
+{
+ /* Internal API cleanup would make this easier... */
+ int i;
+ GstPad *pad, *current;
+ GstObject *selector = NULL;
+ int ret = -1;
+
+ for (i = 0; i < channels->len; i++) {
+ pad = g_ptr_array_index (channels, i);
+ if ((selector = gst_pad_get_parent (pad))) {
+ g_object_get (selector, "active-pad", ¤t, NULL);
+ gst_object_unref (selector);
+
+ if (pad == current) {
+ gst_object_unref (current);
+ ret = i;
+ break;
+ }
+
+ if (current)
+ gst_object_unref (current);
+ }
+ }
+
+ return ret;
+}
+
+static gboolean
+gst_play_bin_set_current_video_stream (GstPlayBin * playbin, gint stream)
+{
+ GstSourceGroup *group;
+ GPtrArray *channels;
+ GstPad *sinkpad;
+
+ GST_PLAY_BIN_LOCK (playbin);
+ group = get_group (playbin);
+ if (!(channels = group->video_channels))
+ goto no_channels;
+
+ if (stream == -1 || channels->len <= stream) {
+ sinkpad = NULL;
+ } else {
+ /* take channel from selected stream */
+ sinkpad = g_ptr_array_index (channels, stream);
+ }
+
+ if (sinkpad)
+ gst_object_ref (sinkpad);
+ GST_PLAY_BIN_UNLOCK (playbin);
+
+ if (sinkpad) {
+ GstObject *selector;
+
+ if ((selector = gst_pad_get_parent (sinkpad))) {
+ /* activate the selected pad */
+ g_object_set (selector, "active-pad", sinkpad, NULL);
+ gst_object_unref (selector);
+ }
+ gst_object_unref (sinkpad);
+ }
+ return TRUE;
+
+no_channels:
+ {
+ GST_PLAY_BIN_UNLOCK (playbin);
+ GST_DEBUG_OBJECT (playbin, "can't switch video, we have no channels");
+ return FALSE;
+ }
+}
+
+static gboolean
+gst_play_bin_set_current_audio_stream (GstPlayBin * playbin, gint stream)
+{
+ GstSourceGroup *group;
+ GPtrArray *channels;
+ GstPad *sinkpad;
+
+ GST_PLAY_BIN_LOCK (playbin);
+ group = get_group (playbin);
+ if (!(channels = group->audio_channels))
+ goto no_channels;
+
+ if (stream == -1 || channels->len <= stream) {
+ sinkpad = NULL;
+ } else {
+ /* take channel from selected stream */
+ sinkpad = g_ptr_array_index (channels, stream);
+ }
+
+ if (sinkpad)
+ gst_object_ref (sinkpad);
+ GST_PLAY_BIN_UNLOCK (playbin);
+
+ if (sinkpad) {
+ GstObject *selector;
+
+ if ((selector = gst_pad_get_parent (sinkpad))) {
+ /* activate the selected pad */
+ g_object_set (selector, "active-pad", sinkpad, NULL);
+ gst_object_unref (selector);
+ }
+ gst_object_unref (sinkpad);
+ }
+ return TRUE;
+
+no_channels:
+ {
+ GST_PLAY_BIN_UNLOCK (playbin);
+ GST_DEBUG_OBJECT (playbin, "can't switch audio, we have no channels");
+ return FALSE;
+ }
+}
+
+static void
+_suburidecodebin_blocked_cb (GstPad * pad, gboolean blocked, gpointer user_data)
+{
+ GST_DEBUG_OBJECT (pad, "Pad blocked: %d", blocked);
+}
+
+static void
+gst_play_bin_suburidecodebin_seek_to_start (GstElement * suburidecodebin)
+{
+ GstIterator *it = gst_element_iterate_src_pads (suburidecodebin);
+ GstPad *sinkpad;
+
+ if (it && gst_iterator_next (it, (gpointer) & sinkpad) == GST_ITERATOR_OK
+ && sinkpad) {
+ GstEvent *event;
+
+ event =
+ gst_event_new_seek (1.0, GST_FORMAT_BYTES, GST_SEEK_FLAG_NONE,
+ GST_SEEK_TYPE_SET, 0, GST_SEEK_TYPE_NONE, -1);
+ if (!gst_pad_send_event (sinkpad, event)) {
+ event =
+ gst_event_new_seek (1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_NONE,
+ GST_SEEK_TYPE_SET, 0, GST_SEEK_TYPE_NONE, -1);
+ if (!gst_pad_send_event (sinkpad, event))
+ GST_DEBUG_OBJECT (suburidecodebin, "Seeking to the beginning failed!");
+ }
+
+ gst_object_unref (sinkpad);
+ }
+
+ if (it)
+ gst_iterator_free (it);
+}
+
+static void
+gst_play_bin_suburidecodebin_block (GstElement * suburidecodebin,
+ gboolean block)
+{
+ GstIterator *it = gst_element_iterate_src_pads (suburidecodebin);
+ gboolean done = FALSE;
+
+ GST_DEBUG_OBJECT (suburidecodebin, "Blocking suburidecodebin: %d", block);
+
+ if (!it)
+ return;
+ while (!done) {
+ GstPad *sinkpad;
+
+ switch (gst_iterator_next (it, (gpointer) & sinkpad)) {
+ case GST_ITERATOR_OK:
+ gst_pad_set_blocked_async (sinkpad, block, _suburidecodebin_blocked_cb,
+ NULL);
+ gst_object_unref (sinkpad);
+ break;
+ case GST_ITERATOR_DONE:
+ done = TRUE;
+ break;
+ case GST_ITERATOR_RESYNC:
+ gst_iterator_resync (it);
+ break;
+ case GST_ITERATOR_ERROR:
+ done = TRUE;
+ break;
+ }
+ }
+ gst_iterator_free (it);
+}
+
+static gboolean
+gst_play_bin_set_current_text_stream (GstPlayBin * playbin, gint stream)
+{
+ GstSourceGroup *group;
+ GPtrArray *channels;
+ GstPad *sinkpad;
+
+ GST_PLAY_BIN_LOCK (playbin);
+ group = get_group (playbin);
+ if (!(channels = group->text_channels))
+ goto no_channels;
+
+ if (stream == -1 || channels->len <= stream) {
+ sinkpad = NULL;
+ } else {
+ /* take channel from selected stream */
+ sinkpad = g_ptr_array_index (channels, stream);
+ }
+
+ if (sinkpad)
+ gst_object_ref (sinkpad);
+ GST_PLAY_BIN_UNLOCK (playbin);
+
+ if (sinkpad) {
+ GstObject *selector;
+
+ if ((selector = gst_pad_get_parent (sinkpad))) {
+ GstPad *old_sinkpad;
+
+ g_object_get (selector, "active-pad", &old_sinkpad, NULL);
+
+ if (old_sinkpad != sinkpad) {
+ gboolean need_unblock, need_block, need_seek;
+ GstPad *src, *peer = NULL, *oldpeer = NULL;
+ GstElement *parent_element = NULL, *old_parent_element = NULL;
+
+ /* Now check if we need to seek the suburidecodebin to the beginning
+ * or if we need to block all suburidecodebin sinkpads or if we need
+ * to unblock all suburidecodebin sinkpads
+ */
+ if (sinkpad)
+ peer = gst_pad_get_peer (sinkpad);
+ if (old_sinkpad)
+ oldpeer = gst_pad_get_peer (old_sinkpad);
+
+ if (peer)
+ parent_element = gst_pad_get_parent_element (peer);
+ if (oldpeer)
+ old_parent_element = gst_pad_get_parent_element (oldpeer);
+
+ need_block = (old_parent_element == group->suburidecodebin
+ && parent_element != old_parent_element);
+ need_unblock = (parent_element == group->suburidecodebin
+ && parent_element != old_parent_element);
+ need_seek = (parent_element == group->suburidecodebin);
+
+ if (peer)
+ gst_object_unref (peer);
+ if (oldpeer)
+ gst_object_unref (oldpeer);
+ if (parent_element)
+ gst_object_unref (parent_element);
+ if (old_parent_element)
+ gst_object_unref (old_parent_element);
+
+ /* Block all suburidecodebin sinkpads */
+ if (need_block)
+ gst_play_bin_suburidecodebin_block (group->suburidecodebin, TRUE);
+
+ /* activate the selected pad */
+ g_object_set (selector, "active-pad", sinkpad, NULL);
+
+ src = gst_element_get_static_pad (GST_ELEMENT_CAST (selector), "src");
+ peer = gst_pad_get_peer (src);
+ if (peer) {
+ GstStructure *s;
+ GstEvent *event;
+ /* Flush the subtitle renderer to remove any
+ * currently displayed subtitles. This event will
+ * never travel outside subtitleoverlay!
+ */
+ s = gst_structure_empty_new ("subtitleoverlay-flush-subtitle");
+ event = gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM_OOB, s);
+ gst_pad_send_event (peer, event);
+ gst_object_unref (peer);
+ }
+ gst_object_unref (src);
+
+ /* Unblock pads if necessary */
+ if (need_unblock)
+ gst_play_bin_suburidecodebin_block (group->suburidecodebin, FALSE);
+
+ /* seek to the beginning */
+ if (need_seek)
+ gst_play_bin_suburidecodebin_seek_to_start (group->suburidecodebin);
+ }
+ gst_object_unref (selector);
+
+ if (old_sinkpad)
+ gst_object_unref (old_sinkpad);
+ }
+ gst_object_unref (sinkpad);
+ }
+ return TRUE;
+
+no_channels:
+ {
+ GST_PLAY_BIN_UNLOCK (playbin);
+ return FALSE;
+ }
+}
+
+static void
+gst_play_bin_set_sink (GstPlayBin * playbin, GstElement ** elem,
+ const gchar * dbg, GstElement * sink)
+{
+ GST_INFO_OBJECT (playbin, "Setting %s sink to %" GST_PTR_FORMAT, dbg, sink);
+
+ GST_PLAY_BIN_LOCK (playbin);
+ if (*elem != sink) {
+ GstElement *old;
+
+ old = *elem;
+ if (sink)
+ gst_object_ref_sink (sink);
+
+ *elem = sink;
+ if (old)
+ gst_object_unref (old);
+ }
+ GST_LOG_OBJECT (playbin, "%s sink now %" GST_PTR_FORMAT, dbg, *elem);
+ GST_PLAY_BIN_UNLOCK (playbin);
+}
+
+static void
+gst_play_bin_set_encoding (GstPlayBin * playbin, const gchar * encoding)
+{
+ GstElement *elem;
+
+ GST_PLAY_BIN_LOCK (playbin);
+
+ /* set subtitles on all current and next decodebins. */
+ if ((elem = playbin->groups[0].uridecodebin))
+ g_object_set (G_OBJECT (elem), "subtitle-encoding", encoding, NULL);
+ if ((elem = playbin->groups[0].suburidecodebin))
+ g_object_set (G_OBJECT (elem), "subtitle-encoding", encoding, NULL);
+ if ((elem = playbin->groups[1].uridecodebin))
+ g_object_set (G_OBJECT (elem), "subtitle-encoding", encoding, NULL);
+ if ((elem = playbin->groups[1].suburidecodebin))
+ g_object_set (G_OBJECT (elem), "subtitle-encoding", encoding, NULL);
+
+ gst_play_sink_set_subtitle_encoding (playbin->playsink, encoding);
+ GST_PLAY_BIN_UNLOCK (playbin);
+}
+
+static void
+gst_play_bin_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstPlayBin *playbin = GST_PLAY_BIN (object);
+
+ switch (prop_id) {
+ case PROP_URI:
+ gst_play_bin_set_uri (playbin, g_value_get_string (value));
+ break;
+ case PROP_SUBURI:
+ gst_play_bin_set_suburi (playbin, g_value_get_string (value));
+ break;
+ case PROP_FLAGS:
+ gst_play_bin_set_flags (playbin, g_value_get_flags (value));
+ break;
+ case PROP_CURRENT_VIDEO:
+ gst_play_bin_set_current_video_stream (playbin, g_value_get_int (value));
+ break;
+ case PROP_CURRENT_AUDIO:
+ gst_play_bin_set_current_audio_stream (playbin, g_value_get_int (value));
+ break;
+ case PROP_CURRENT_TEXT:
+ gst_play_bin_set_current_text_stream (playbin, g_value_get_int (value));
+ break;
+ case PROP_SUBTITLE_ENCODING:
+ gst_play_bin_set_encoding (playbin, g_value_get_string (value));
+ break;
+ case PROP_VIDEO_SINK:
+ gst_play_bin_set_sink (playbin, &playbin->video_sink, "video",
+ g_value_get_object (value));
+ break;
+ case PROP_AUDIO_SINK:
+ gst_play_bin_set_sink (playbin, &playbin->audio_sink, "audio",
+ g_value_get_object (value));
+ break;
+ case PROP_VIS_PLUGIN:
+ gst_play_sink_set_vis_plugin (playbin->playsink,
+ g_value_get_object (value));
+ break;
+ case PROP_TEXT_SINK:
+ gst_play_bin_set_sink (playbin, &playbin->text_sink, "text",
+ g_value_get_object (value));
+ break;
+ case PROP_VOLUME:
+ gst_play_sink_set_volume (playbin->playsink, g_value_get_double (value));
+ break;
+ case PROP_MUTE:
+ gst_play_sink_set_mute (playbin->playsink, g_value_get_boolean (value));
+ break;
+ case PROP_FONT_DESC:
+ gst_play_sink_set_font_desc (playbin->playsink,
+ g_value_get_string (value));
+ break;
+ case PROP_CONNECTION_SPEED:
+ GST_PLAY_BIN_LOCK (playbin);
+ playbin->connection_speed = g_value_get_uint (value) * 1000;
+ GST_PLAY_BIN_UNLOCK (playbin);
+ break;
+ case PROP_BUFFER_SIZE:
+ playbin->buffer_size = g_value_get_int (value);
+ break;
+ case PROP_BUFFER_DURATION:
+ playbin->buffer_duration = g_value_get_int64 (value);
+ break;
+ case PROP_AV_OFFSET:
+ gst_play_sink_set_av_offset (playbin->playsink,
+ g_value_get_int64 (value));
+ break;
+ case PROP_RING_BUFFER_MAX_SIZE:
+ playbin->ring_buffer_max_size = g_value_get_uint64 (value);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static GstElement *
+gst_play_bin_get_current_sink (GstPlayBin * playbin, GstElement ** elem,
+ const gchar * dbg, GstPlaySinkType type)
+{
+ GstElement *sink = gst_play_sink_get_sink (playbin->playsink, type);
+
+ GST_LOG_OBJECT (playbin, "play_sink_get_sink() returned %s sink %"
+ GST_PTR_FORMAT ", the originally set %s sink is %" GST_PTR_FORMAT,
+ dbg, sink, dbg, *elem);
+
+ if (sink == NULL) {
+ GST_PLAY_BIN_LOCK (playbin);
+ if ((sink = *elem))
+ gst_object_ref (sink);
+ GST_PLAY_BIN_UNLOCK (playbin);
+ }
+
+ return sink;
+}
+
+static void
+gst_play_bin_get_property (GObject * object, guint prop_id, GValue * value,
+ GParamSpec * pspec)
+{
+ GstPlayBin *playbin = GST_PLAY_BIN (object);
+
+ switch (prop_id) {
+ case PROP_URI:
+ {
+ GstSourceGroup *group;
+
+ GST_PLAY_BIN_LOCK (playbin);
+ group = get_group (playbin);
+ g_value_set_string (value, group->uri);
+ GST_PLAY_BIN_UNLOCK (playbin);
+ break;
+ }
+ case PROP_SUBURI:
+ {
+ GstSourceGroup *group;
+
+ GST_PLAY_BIN_LOCK (playbin);
+ group = get_group (playbin);
+ g_value_set_string (value, group->suburi);
+ GST_PLAY_BIN_UNLOCK (playbin);
+ break;
+ }
+ case PROP_SOURCE:
+ {
+ GST_OBJECT_LOCK (playbin);
+ g_value_set_object (value, playbin->source);
+ GST_OBJECT_UNLOCK (playbin);
+ break;
+ }
+ case PROP_FLAGS:
+ g_value_set_flags (value, gst_play_bin_get_flags (playbin));
+ break;
+ case PROP_N_VIDEO:
+ {
+ GstSourceGroup *group;
+ gint n_video;
+
+ GST_PLAY_BIN_LOCK (playbin);
+ group = get_group (playbin);
+ n_video = (group->video_channels ? group->video_channels->len : 0);
+ g_value_set_int (value, n_video);
+ GST_PLAY_BIN_UNLOCK (playbin);
+ break;
+ }
+ case PROP_CURRENT_VIDEO:
+ GST_PLAY_BIN_LOCK (playbin);
+ g_value_set_int (value, playbin->current_video);
+ GST_PLAY_BIN_UNLOCK (playbin);
+ break;
+ case PROP_N_AUDIO:
+ {
+ GstSourceGroup *group;
+ gint n_audio;
+
+ GST_PLAY_BIN_LOCK (playbin);
+ group = get_group (playbin);
+ n_audio = (group->audio_channels ? group->audio_channels->len : 0);
+ g_value_set_int (value, n_audio);
+ GST_PLAY_BIN_UNLOCK (playbin);
+ break;
+ }
+ case PROP_CURRENT_AUDIO:
+ GST_PLAY_BIN_LOCK (playbin);
+ g_value_set_int (value, playbin->current_audio);
+ GST_PLAY_BIN_UNLOCK (playbin);
+ break;
+ case PROP_N_TEXT:
+ {
+ GstSourceGroup *group;
+ gint n_text;
+
+ GST_PLAY_BIN_LOCK (playbin);
+ group = get_group (playbin);
+ n_text = (group->text_channels ? group->text_channels->len : 0);
+ g_value_set_int (value, n_text);
+ GST_PLAY_BIN_UNLOCK (playbin);
+ break;
+ }
+ case PROP_CURRENT_TEXT:
+ GST_PLAY_BIN_LOCK (playbin);
+ g_value_set_int (value, playbin->current_text);
+ GST_PLAY_BIN_UNLOCK (playbin);
+ break;
+ case PROP_SUBTITLE_ENCODING:
+ GST_PLAY_BIN_LOCK (playbin);
+ g_value_take_string (value,
+ gst_play_sink_get_subtitle_encoding (playbin->playsink));
+ GST_PLAY_BIN_UNLOCK (playbin);
+ break;
+ case PROP_VIDEO_SINK:
+ g_value_take_object (value,
+ gst_play_bin_get_current_sink (playbin, &playbin->video_sink,
+ "video", GST_PLAY_SINK_TYPE_VIDEO));
+ break;
+ case PROP_AUDIO_SINK:
+ g_value_take_object (value,
+ gst_play_bin_get_current_sink (playbin, &playbin->audio_sink,
+ "audio", GST_PLAY_SINK_TYPE_AUDIO));
+ break;
+ case PROP_VIS_PLUGIN:
+ g_value_take_object (value,
+ gst_play_sink_get_vis_plugin (playbin->playsink));
+ break;
+ case PROP_TEXT_SINK:
+ g_value_take_object (value,
+ gst_play_bin_get_current_sink (playbin, &playbin->text_sink,
+ "text", GST_PLAY_SINK_TYPE_TEXT));
+ break;
+ case PROP_VOLUME:
+ g_value_set_double (value, gst_play_sink_get_volume (playbin->playsink));
+ break;
+ case PROP_MUTE:
+ g_value_set_boolean (value, gst_play_sink_get_mute (playbin->playsink));
+ break;
+ case PROP_FRAME:
+ gst_value_take_buffer (value,
+ gst_play_sink_get_last_frame (playbin->playsink));
+ break;
+ case PROP_FONT_DESC:
+ g_value_take_string (value,
+ gst_play_sink_get_font_desc (playbin->playsink));
+ break;
+ case PROP_CONNECTION_SPEED:
+ GST_PLAY_BIN_LOCK (playbin);
+ g_value_set_uint (value, playbin->connection_speed / 1000);
+ GST_PLAY_BIN_UNLOCK (playbin);
+ break;
+ case PROP_BUFFER_SIZE:
+ GST_OBJECT_LOCK (playbin);
+ g_value_set_int (value, playbin->buffer_size);
+ GST_OBJECT_UNLOCK (playbin);
+ break;
+ case PROP_BUFFER_DURATION:
+ GST_OBJECT_LOCK (playbin);
+ g_value_set_int64 (value, playbin->buffer_duration);
+ GST_OBJECT_UNLOCK (playbin);
+ break;
+ case PROP_AV_OFFSET:
+ g_value_set_int64 (value,
+ gst_play_sink_get_av_offset (playbin->playsink));
+ break;
+ case PROP_RING_BUFFER_MAX_SIZE:
+ g_value_set_uint64 (value, playbin->ring_buffer_max_size);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_play_bin_update_cached_duration_from_query (GstPlayBin * playbin,
+ gboolean valid, GstQuery * query)
+{
+ GstFormat fmt;
+ gint64 duration;
+ gint i;
+
+ GST_DEBUG_OBJECT (playbin, "Updating cached duration from query");
+ gst_query_parse_duration (query, &fmt, &duration);
+
+ for (i = 0; i < G_N_ELEMENTS (playbin->duration); i++) {
+ if (playbin->duration[i].format == 0 || fmt == playbin->duration[i].format) {
+ playbin->duration[i].valid = valid;
+ playbin->duration[i].format = fmt;
+ playbin->duration[i].duration = valid ? duration : -1;
+ break;
+ }
+ }
+}
+
+static void
+gst_play_bin_update_cached_duration (GstPlayBin * playbin)
+{
+ const GstFormat formats[] =
+ { GST_FORMAT_TIME, GST_FORMAT_BYTES, GST_FORMAT_DEFAULT };
+ gboolean ret;
+ GstQuery *query;
+ gint i;
+
+ GST_DEBUG_OBJECT (playbin, "Updating cached durations before group switch");
+ for (i = 0; i < G_N_ELEMENTS (formats); i++) {
+ query = gst_query_new_duration (formats[i]);
+ ret =
+ GST_ELEMENT_CLASS (parent_class)->query (GST_ELEMENT_CAST (playbin),
+ query);
+ gst_play_bin_update_cached_duration_from_query (playbin, ret, query);
+ gst_query_unref (query);
+ }
+}
+
+static gboolean
+gst_play_bin_query (GstElement * element, GstQuery * query)
+{
+ GstPlayBin *playbin = GST_PLAY_BIN (element);
+ gboolean ret;
+
+ /* During a group switch we shouldn't allow duration queries
+ * because it's not clear if the old or new group's duration
+ * is returned and if the sinks are already playing new data
+ * or old data. See bug #585969
+ *
+ * While we're at it, also don't do any other queries during
+ * a group switch or any other event that causes topology changes
+ * by taking the playbin lock in any case.
+ */
+ GST_PLAY_BIN_LOCK (playbin);
+
+ if (GST_QUERY_TYPE (query) == GST_QUERY_DURATION) {
+ GstSourceGroup *group = playbin->curr_group;
+ gboolean pending;
+
+ GST_SOURCE_GROUP_LOCK (group);
+ if (group->stream_changed_pending_lock) {
+ g_mutex_lock (group->stream_changed_pending_lock);
+ pending = group->pending || group->stream_changed_pending;
+ g_mutex_unlock (group->stream_changed_pending_lock);
+ } else {
+ pending = group->pending;
+ }
+ if (pending) {
+ GstFormat fmt;
+ gint i;
+
+ ret = FALSE;
+ gst_query_parse_duration (query, &fmt, NULL);
+ for (i = 0; i < G_N_ELEMENTS (playbin->duration); i++) {
+ if (fmt == playbin->duration[i].format) {
+ ret = playbin->duration[i].valid;
+ gst_query_set_duration (query, fmt,
+ (ret ? playbin->duration[i].duration : -1));
+ break;
+ }
+ }
+ /* if nothing cached yet, we might as well request duration,
+ * such as during initial startup */
+ if (ret) {
+ GST_DEBUG_OBJECT (playbin,
+ "Taking cached duration because of pending group switch: %d", ret);
+ GST_SOURCE_GROUP_UNLOCK (group);
+ GST_PLAY_BIN_UNLOCK (playbin);
+ return ret;
+ }
+ }
+ GST_SOURCE_GROUP_UNLOCK (group);
+ }
+
+ ret = GST_ELEMENT_CLASS (parent_class)->query (element, query);
+
+ if (GST_QUERY_TYPE (query) == GST_QUERY_DURATION)
+ gst_play_bin_update_cached_duration_from_query (playbin, ret, query);
+ GST_PLAY_BIN_UNLOCK (playbin);
+
+ return ret;
+}
+
+/* mime types we are not handling on purpose right now, don't post a
+ * missing-plugin message for these */
+static const gchar *blacklisted_mimes[] = {
+ NULL
+};
+
+static void
+gst_play_bin_handle_message (GstBin * bin, GstMessage * msg)
+{
+ GstPlayBin *playbin = GST_PLAY_BIN (bin);
+ GstSourceGroup *group;
+
+ 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);
+ } else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ELEMENT) {
+ const GstStructure *s = gst_message_get_structure (msg);
+
+ /* Drop all stream-changed messages except the last one */
+ if (strcmp ("playbin2-stream-changed", gst_structure_get_name (s)) == 0) {
+ guint32 seqnum = gst_message_get_seqnum (msg);
+ GList *l, *l_prev;
+
+ group = playbin->curr_group;
+ g_mutex_lock (group->stream_changed_pending_lock);
+ for (l = group->stream_changed_pending; l;) {
+ guint32 l_seqnum = GPOINTER_TO_UINT (l->data);
+
+ if (l_seqnum == seqnum) {
+ l_prev = l;
+ l = l->next;
+ group->stream_changed_pending =
+ g_list_delete_link (group->stream_changed_pending, l_prev);
+ if (group->stream_changed_pending) {
+ gst_message_unref (msg);
+ msg = NULL;
+ break;
+ }
+ } else {
+ l = l->next;
+ }
+ }
+ g_mutex_unlock (group->stream_changed_pending_lock);
+ }
+ } else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ASYNC_START ||
+ GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ASYNC_DONE) {
+ GstObject *src = GST_OBJECT_CAST (msg->src);
+
+ /* Ignore async state changes from the uridecodebin children,
+ * see bug #602000. */
+ group = playbin->curr_group;
+ if (src && (group = playbin->curr_group) &&
+ ((group->uridecodebin && src == GST_OBJECT_CAST (group->uridecodebin))
+ || (group->suburidecodebin
+ && src == GST_OBJECT_CAST (group->suburidecodebin)))) {
+ GST_DEBUG_OBJECT (playbin,
+ "Ignoring async state change of uridecodebin: %s",
+ GST_OBJECT_NAME (src));
+ gst_message_unref (msg);
+ msg = NULL;
+ }
+ } else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ERROR) {
+ /* If we get an error of the subtitle uridecodebin transform
+ * them into warnings and disable the subtitles */
+ group = playbin->curr_group;
+ if (group && group->suburidecodebin) {
+ if (G_UNLIKELY (gst_object_has_ancestor (msg->src, GST_OBJECT_CAST
+ (group->suburidecodebin)))) {
+ GError *err;
+ gchar *debug = NULL;
+ GstMessage *new_msg;
+ GstIterator *it;
+ gboolean done = FALSE;
+
+ gst_message_parse_error (msg, &err, &debug);
+ new_msg = gst_message_new_warning (msg->src, err, debug);
+
+ gst_message_unref (msg);
+ g_error_free (err);
+ g_free (debug);
+ msg = new_msg;
+
+ REMOVE_SIGNAL (group->suburidecodebin, group->sub_pad_added_id);
+ REMOVE_SIGNAL (group->suburidecodebin, group->sub_pad_removed_id);
+ REMOVE_SIGNAL (group->suburidecodebin, group->sub_no_more_pads_id);
+ REMOVE_SIGNAL (group->suburidecodebin, group->sub_autoplug_continue_id);
+
+ it = gst_element_iterate_src_pads (group->suburidecodebin);
+ while (it && !done) {
+ GstPad *p = NULL;
+ GstIteratorResult res;
+
+ res = gst_iterator_next (it, (gpointer) & p);
+
+ switch (res) {
+ case GST_ITERATOR_DONE:
+ done = TRUE;
+ break;
+ case GST_ITERATOR_OK:
+ pad_removed_cb (NULL, p, group);
+ gst_object_unref (p);
+ break;
+
+ case GST_ITERATOR_RESYNC:
+ gst_iterator_resync (it);
+ break;
+ case GST_ITERATOR_ERROR:
+ done = TRUE;
+ break;
+ }
+ }
+ if (it)
+ gst_iterator_free (it);
+
+ gst_object_ref (group->suburidecodebin);
+ gst_bin_remove (bin, group->suburidecodebin);
+ gst_element_set_locked_state (group->suburidecodebin, FALSE);
+
+ if (group->sub_pending) {
+ group->sub_pending = FALSE;
+ no_more_pads_cb (NULL, group);
+ }
+ }
+ }
+ }
+
+ if (msg)
+ GST_BIN_CLASS (parent_class)->handle_message (bin, msg);
+}
+
+static void
+selector_active_pad_changed (GObject * selector, GParamSpec * pspec,
+ GstPlayBin * playbin)
+{
+ const gchar *property;
+ GstSourceGroup *group;
+ GstSourceSelect *select = NULL;
+ int i;
+
+ GST_PLAY_BIN_LOCK (playbin);
+ group = get_group (playbin);
+
+ for (i = 0; i < GST_PLAY_SINK_TYPE_LAST; i++) {
+ if (selector == G_OBJECT (group->selector[i].selector)) {
+ select = &group->selector[i];
+ }
+ }
+
+ /* We got a pad-change after our group got switched out; no need to notify */
+ if (!select) {
+ GST_PLAY_BIN_UNLOCK (playbin);
+ return;
+ }
+
+ switch (select->type) {
+ case GST_PLAY_SINK_TYPE_VIDEO:
+ case GST_PLAY_SINK_TYPE_VIDEO_RAW:
+ property = "current-video";
+ playbin->current_video = get_current_stream_number (playbin,
+ group->video_channels);
+ break;
+ case GST_PLAY_SINK_TYPE_AUDIO:
+ case GST_PLAY_SINK_TYPE_AUDIO_RAW:
+ property = "current-audio";
+ playbin->current_audio = get_current_stream_number (playbin,
+ group->audio_channels);
+ break;
+ case GST_PLAY_SINK_TYPE_TEXT:
+ property = "current-text";
+ playbin->current_text = get_current_stream_number (playbin,
+ group->text_channels);
+ break;
+ default:
+ property = NULL;
+ }
+ GST_PLAY_BIN_UNLOCK (playbin);
+
+ if (property)
+ g_object_notify (G_OBJECT (playbin), property);
+}
+
+static void
+selector_blocked (GstPad * pad, gboolean blocked, gpointer user_data)
+{
+ /* no nothing */
+ GST_DEBUG_OBJECT (pad, "blocked callback, blocked: %d", blocked);
+}
+
+/* this callback sends a delayed event once the pad becomes unblocked */
+static gboolean
+stream_changed_data_probe (GstPad * pad, GstMiniObject * object, gpointer data)
+{
+ GstSourceSelect *select = (GstSourceSelect *) data;
+ GstEvent *e;
+
+ /* we need do this just once, so cleanup first */
+ gst_pad_remove_data_probe (pad, select->sinkpad_data_probe);
+ select->sinkpad_data_probe = 0;
+ e = select->sinkpad_delayed_event;
+ select->sinkpad_delayed_event = NULL;
+
+ /* really, this should not happen */
+ if (!e) {
+ GST_WARNING ("Data probed called, but no delayed event");
+ return TRUE;
+ }
+
+ if (GST_IS_EVENT (object)
+ && GST_EVENT_TYPE (GST_EVENT_CAST (object)) == GST_EVENT_NEWSEGMENT) {
+ /* push the event first, then send the delayed one */
+ gst_event_ref (GST_EVENT_CAST (object));
+ gst_pad_send_event (pad, GST_EVENT_CAST (object));
+ gst_pad_send_event (pad, e);
+ return FALSE;
+ } else {
+ /* send delayed event, then allow the caller to go on */
+ gst_pad_send_event (pad, e);
+ return TRUE;
+ }
+}
+
+/* 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;
+}
+
+typedef struct
+{
+ GstPlayBin *playbin;
+ gint stream_id;
+ GstPlaySinkType type;
+} NotifyTagsData;
+
+static void
+notify_tags_cb (GObject * object, GParamSpec * pspec, gpointer user_data)
+{
+ NotifyTagsData *ntdata = (NotifyTagsData *) user_data;
+ gint signal;
+
+ GST_DEBUG_OBJECT (ntdata->playbin, "Tags on pad %" GST_PTR_FORMAT
+ " with stream id %d and type %d have changed",
+ object, ntdata->stream_id, ntdata->type);
+
+ switch (ntdata->type) {
+ case GST_PLAY_SINK_TYPE_VIDEO:
+ case GST_PLAY_SINK_TYPE_VIDEO_RAW:
+ signal = SIGNAL_VIDEO_TAGS_CHANGED;
+ break;
+ case GST_PLAY_SINK_TYPE_AUDIO:
+ case GST_PLAY_SINK_TYPE_AUDIO_RAW:
+ signal = SIGNAL_AUDIO_TAGS_CHANGED;
+ break;
+ case GST_PLAY_SINK_TYPE_TEXT:
+ signal = SIGNAL_TEXT_TAGS_CHANGED;
+ break;
+ default:
+ signal = -1;
+ break;
+ }
+
+ if (signal >= 0)
+ g_signal_emit (G_OBJECT (ntdata->playbin), gst_play_bin_signals[signal], 0,
+ ntdata->stream_id);
+}
+
+/* this function is called when a new pad is added to decodebin. We check the
+ * type of the pad and add it to the selector element of the group.
+ */
+static void
+pad_added_cb (GstElement * decodebin, GstPad * pad, GstSourceGroup * group)
+{
+ GstPlayBin *playbin;
+ GstCaps *caps;
+ const GstStructure *s;
+ const gchar *name;
+ GstPad *sinkpad;
+ GstPadLinkReturn res;
+ GstSourceSelect *select = NULL;
+ gint i;
+ gboolean changed = FALSE;
+
+ playbin = group->playbin;
+
+ caps = gst_pad_get_caps_reffed (pad);
+ s = gst_caps_get_structure (caps, 0);
+ name = gst_structure_get_name (s);
+
+ GST_DEBUG_OBJECT (playbin,
+ "pad %s:%s with caps %" GST_PTR_FORMAT " added in group %p",
+ GST_DEBUG_PAD_NAME (pad), caps, group);
+
+ /* major type of the pad, this determines the selector to use */
+ for (i = 0; i < GST_PLAY_SINK_TYPE_LAST; i++) {
+ if (array_has_value (group->selector[i].media_list, name)) {
+ select = &group->selector[i];
+ break;
+ } else if (group->selector[i].get_media_caps) {
+ GstCaps *media_caps = group->selector[i].get_media_caps ();
+
+ if (media_caps && gst_caps_can_intersect (media_caps, caps)) {
+ select = &group->selector[i];
+ gst_caps_unref (media_caps);
+ break;
+ }
+ gst_caps_unref (media_caps);
+ }
+ }
+ /* no selector found for the media type, don't bother linking it to a
+ * selector. This will leave the pad unlinked and thus ignored. */
+ if (select == NULL)
+ goto unknown_type;
+
+ GST_SOURCE_GROUP_LOCK (group);
+ if (select->selector == NULL && playbin->have_selector) {
+ /* no selector, create one */
+ GST_DEBUG_OBJECT (playbin, "creating new input selector");
+ select->selector = gst_element_factory_make ("input-selector", NULL);
+ if (select->selector == NULL) {
+ /* post the missing selector message only once */
+ playbin->have_selector = FALSE;
+ gst_element_post_message (GST_ELEMENT_CAST (playbin),
+ gst_missing_element_message_new (GST_ELEMENT_CAST (playbin),
+ "input-selector"));
+ GST_ELEMENT_WARNING (playbin, CORE, MISSING_PLUGIN,
+ (_("Missing element '%s' - check your GStreamer installation."),
+ "input-selector"), (NULL));
+ } else {
+ g_signal_connect (select->selector, "notify::active-pad",
+ G_CALLBACK (selector_active_pad_changed), playbin);
+
+ GST_DEBUG_OBJECT (playbin, "adding new selector %p", select->selector);
+ gst_bin_add (GST_BIN_CAST (playbin), select->selector);
+ gst_element_set_state (select->selector, GST_STATE_PAUSED);
+ }
+ }
+
+ if (select->srcpad == NULL) {
+ if (select->selector) {
+ /* save source pad of the selector */
+ select->srcpad = gst_element_get_static_pad (select->selector, "src");
+ } else {
+ /* no selector, use the pad as the source pad then */
+ select->srcpad = gst_object_ref (pad);
+ }
+
+ /* block the selector srcpad. It's possible that multiple decodebins start
+ * pushing data into the selectors before we have a chance to collect all
+ * streams and connect the sinks, resulting in not-linked errors. After we
+ * configured the sinks we will unblock them all. */
+ GST_DEBUG_OBJECT (playbin, "blocking %" GST_PTR_FORMAT, select->srcpad);
+ gst_pad_set_blocked_async (select->srcpad, TRUE, selector_blocked, NULL);
+ }
+
+ /* get sinkpad for the new stream */
+ if (select->selector) {
+ if ((sinkpad = gst_element_get_request_pad (select->selector, "sink%d"))) {
+ gulong notify_tags_handler = 0;
+ NotifyTagsData *ntdata;
+
+ GST_DEBUG_OBJECT (playbin, "got pad %s:%s from selector",
+ GST_DEBUG_PAD_NAME (sinkpad));
+
+ /* store the selector for the pad */
+ g_object_set_data (G_OBJECT (sinkpad), "playbin2.select", select);
+
+ /* connect to the notify::tags signal for our
+ * own *-tags-changed signals
+ */
+ ntdata = g_new0 (NotifyTagsData, 1);
+ ntdata->playbin = playbin;
+ ntdata->stream_id = select->channels->len;
+ ntdata->type = select->type;
+
+ notify_tags_handler =
+ g_signal_connect_data (G_OBJECT (sinkpad), "notify::tags",
+ G_CALLBACK (notify_tags_cb), ntdata, (GClosureNotify) g_free,
+ (GConnectFlags) 0);
+ g_object_set_data (G_OBJECT (sinkpad), "playbin2.notify_tags_handler",
+ (gpointer) notify_tags_handler);
+
+ /* store the pad in the array */
+ GST_DEBUG_OBJECT (playbin, "pad %p added to array", sinkpad);
+ g_ptr_array_add (select->channels, sinkpad);
+
+ res = gst_pad_link (pad, sinkpad);
+ if (GST_PAD_LINK_FAILED (res))
+ goto link_failed;
+
+ /* store selector pad so we can release it */
+ g_object_set_data (G_OBJECT (pad), "playbin2.sinkpad", sinkpad);
+
+ changed = TRUE;
+ GST_DEBUG_OBJECT (playbin, "linked pad %s:%s to selector %p",
+ GST_DEBUG_PAD_NAME (pad), select->selector);
+ }
+ } else {
+ /* no selector, don't configure anything, we'll link the new pad directly to
+ * the sink. */
+ changed = FALSE;
+ sinkpad = NULL;
+ }
+ GST_SOURCE_GROUP_UNLOCK (group);
+
+ if (changed) {
+ int signal;
+ gboolean always_ok = (decodebin == group->suburidecodebin);
+
+ switch (select->type) {
+ case GST_PLAY_SINK_TYPE_VIDEO:
+ case GST_PLAY_SINK_TYPE_VIDEO_RAW:
+ /* we want to return NOT_LINKED for unselected pads but only for pads
+ * from the normal uridecodebin. This makes sure that subtitle streams
+ * are not raced past audio/video from decodebin2's multiqueue.
+ * For pads from suburidecodebin OK should always be returned, otherwise
+ * it will most likely stop. */
+ g_object_set (sinkpad, "always-ok", always_ok, NULL);
+ signal = SIGNAL_VIDEO_CHANGED;
+ break;
+ case GST_PLAY_SINK_TYPE_AUDIO:
+ case GST_PLAY_SINK_TYPE_AUDIO_RAW:
+ g_object_set (sinkpad, "always-ok", always_ok, NULL);
+ signal = SIGNAL_AUDIO_CHANGED;
+ break;
+ case GST_PLAY_SINK_TYPE_TEXT:
+ g_object_set (sinkpad, "always-ok", always_ok, NULL);
+ signal = SIGNAL_TEXT_CHANGED;
+ break;
+ default:
+ signal = -1;
+ }
+
+ if (signal >= 0)
+ g_signal_emit (G_OBJECT (playbin), gst_play_bin_signals[signal], 0, NULL);
+ }
+
+done:
+ gst_caps_unref (caps);
+ return;
+
+ /* ERRORS */
+unknown_type:
+ {
+ GST_ERROR_OBJECT (playbin, "unknown type %s for pad %s:%s",
+ name, GST_DEBUG_PAD_NAME (pad));
+ goto done;
+ }
+link_failed:
+ {
+ GST_ERROR_OBJECT (playbin,
+ "failed to link pad %s:%s to selector, reason %d",
+ GST_DEBUG_PAD_NAME (pad), res);
+ GST_SOURCE_GROUP_UNLOCK (group);
+ goto done;
+ }
+}
+
+/* called when a pad is removed from the uridecodebin. We unlink the pad from
+ * the selector. This will make the selector select a new pad. */
+static void
+pad_removed_cb (GstElement * decodebin, GstPad * pad, GstSourceGroup * group)
+{
+ GstPlayBin *playbin;
+ GstPad *peer;
+ GstElement *selector;
+ GstSourceSelect *select;
+
+ playbin = group->playbin;
+
+ GST_DEBUG_OBJECT (playbin,
+ "pad %s:%s removed from group %p", GST_DEBUG_PAD_NAME (pad), group);
+
+ GST_SOURCE_GROUP_LOCK (group);
+ /* get the selector sinkpad */
+ if (!(peer = g_object_get_data (G_OBJECT (pad), "playbin2.sinkpad")))
+ goto not_linked;
+
+ if ((select = g_object_get_data (G_OBJECT (peer), "playbin2.select"))) {
+ gulong notify_tags_handler;
+
+ notify_tags_handler =
+ (gulong) g_object_get_data (G_OBJECT (peer),
+ "playbin2.notify_tags_handler");
+ if (notify_tags_handler != 0)
+ g_signal_handler_disconnect (G_OBJECT (peer), notify_tags_handler);
+ g_object_set_data (G_OBJECT (peer), "playbin2.notify_tags_handler", NULL);
+
+ /* remove the pad from the array */
+ g_ptr_array_remove (select->channels, peer);
+ GST_DEBUG_OBJECT (playbin, "pad %p removed from array", peer);
+ }
+
+ /* unlink the pad now (can fail, the pad is unlinked before it's removed) */
+ gst_pad_unlink (pad, peer);
+
+ /* get selector, this can be NULL when the element is removing the pads
+ * because it's being disposed. */
+ selector = GST_ELEMENT_CAST (gst_pad_get_parent (peer));
+ if (!selector) {
+ gst_object_unref (peer);
+ goto no_selector;
+ }
+
+ /* release the pad to the selector, this will make the selector choose a new
+ * pad. */
+ gst_element_release_request_pad (selector, peer);
+ gst_object_unref (peer);
+
+ gst_object_unref (selector);
+ GST_SOURCE_GROUP_UNLOCK (group);
+
+ return;
+
+ /* ERRORS */
+not_linked:
+ {
+ GST_DEBUG_OBJECT (playbin, "pad not linked");
+ GST_SOURCE_GROUP_UNLOCK (group);
+ return;
+ }
+no_selector:
+ {
+ GST_DEBUG_OBJECT (playbin, "selector not found");
+ GST_SOURCE_GROUP_UNLOCK (group);
+ return;
+ }
+}
+
+/* we get called when all pads are available and we must connect the sinks to
+ * them.
+ * The main purpose of the code is to see if we have video/audio and subtitles
+ * and pick the right pipelines to display them.
+ *
+ * The selectors installed on the group tell us about the presence of
+ * audio/video and subtitle streams. This allows us to see if we need
+ * visualisation, video or/and audio.
+ */
+static void
+no_more_pads_cb (GstElement * decodebin, GstSourceGroup * group)
+{
+ GstPlayBin *playbin;
+ GstPadLinkReturn res;
+ gint i;
+ gboolean configure;
+
+ playbin = group->playbin;
+
+ GST_DEBUG_OBJECT (playbin, "no more pads in group %p", group);
+
+ GST_PLAY_BIN_SHUTDOWN_LOCK (playbin, shutdown);
+
+ GST_SOURCE_GROUP_LOCK (group);
+ for (i = 0; i < GST_PLAY_SINK_TYPE_LAST; i++) {
+ GstSourceSelect *select = &group->selector[i];
+
+ /* check if the specific media type was detected and thus has a selector
+ * created for it. If there is the media type, get a sinkpad from the sink
+ * and link it. We only do this if we have not yet requested the sinkpad
+ * before. */
+ if (select->srcpad && select->sinkpad == NULL) {
+ GST_DEBUG_OBJECT (playbin, "requesting new sink pad %d", select->type);
+ select->sinkpad =
+ gst_play_sink_request_pad (playbin->playsink, select->type);
+
+ res = gst_pad_link (select->srcpad, select->sinkpad);
+ GST_DEBUG_OBJECT (playbin, "linked type %s, result: %d",
+ select->media_list[0], res);
+ if (res != GST_PAD_LINK_OK) {
+ GST_ELEMENT_ERROR (playbin, CORE, PAD,
+ ("Internal playbin error."),
+ ("Failed to link selector to sink. Error %d", res));
+ }
+ }
+ }
+ GST_DEBUG_OBJECT (playbin, "pending %d > %d", group->pending,
+ group->pending - 1);
+
+ if (group->pending > 0)
+ group->pending--;
+
+ if (group->suburidecodebin == decodebin)
+ group->sub_pending = FALSE;
+
+ if (group->pending == 0) {
+ /* we are the last group to complete, we will configure the output and then
+ * signal the other waiters. */
+ GST_LOG_OBJECT (playbin, "last group complete");
+ configure = TRUE;
+ } else {
+ GST_LOG_OBJECT (playbin, "have more pending groups");
+ configure = FALSE;
+ }
+ GST_SOURCE_GROUP_UNLOCK (group);
+
+ if (configure) {
+ /* if we have custom sinks, configure them now */
+ GST_SOURCE_GROUP_LOCK (group);
+
+ GST_INFO_OBJECT (playbin, "setting custom audio sink %" GST_PTR_FORMAT,
+ group->audio_sink);
+ gst_play_sink_set_sink (playbin->playsink, GST_PLAY_SINK_TYPE_AUDIO,
+ group->audio_sink);
+
+ GST_INFO_OBJECT (playbin, "setting custom video sink %" GST_PTR_FORMAT,
+ group->video_sink);
+ gst_play_sink_set_sink (playbin->playsink, GST_PLAY_SINK_TYPE_VIDEO,
+ group->video_sink);
+
+ GST_INFO_OBJECT (playbin, "setting custom text sink %" GST_PTR_FORMAT,
+ playbin->text_sink);
+ gst_play_sink_set_sink (playbin->playsink, GST_PLAY_SINK_TYPE_TEXT,
+ playbin->text_sink);
+
+ GST_SOURCE_GROUP_UNLOCK (group);
+
+ GST_LOG_OBJECT (playbin, "reconfigure sink");
+ /* we configure the modes if we were the last decodebin to complete. */
+ gst_play_sink_reconfigure (playbin->playsink);
+
+ /* signal the other decodebins that they can continue now. */
+ GST_SOURCE_GROUP_LOCK (group);
+ /* unblock all selectors */
+ for (i = 0; i < GST_PLAY_SINK_TYPE_LAST; i++) {
+ GstSourceSelect *select = &group->selector[i];
+
+ /* All streamsynchronizer streams should see stream-changed message,
+ * to arrange for blocking unblocking. */
+ if (select->sinkpad) {
+ GstStructure *s;
+ GstMessage *msg;
+ GstEvent *event;
+ guint32 seqnum;
+
+ s = gst_structure_new ("playbin2-stream-changed", "uri", G_TYPE_STRING,
+ group->uri, NULL);
+ if (group->suburi)
+ gst_structure_set (s, "suburi", G_TYPE_STRING, group->suburi, NULL);
+ msg = gst_message_new_element (GST_OBJECT_CAST (playbin), s);
+ seqnum = gst_message_get_seqnum (msg);
+ event = gst_event_new_sink_message (msg);
+ g_mutex_lock (group->stream_changed_pending_lock);
+ group->stream_changed_pending =
+ g_list_prepend (group->stream_changed_pending,
+ GUINT_TO_POINTER (seqnum));
+
+ /* remove any data probe we might have, and replace */
+ if (select->sinkpad_delayed_event)
+ gst_event_unref (select->sinkpad_delayed_event);
+ select->sinkpad_delayed_event = event;
+ if (select->sinkpad_data_probe)
+ gst_pad_remove_data_probe (select->sinkpad,
+ select->sinkpad_data_probe);
+
+ /* we go to the trouble of setting a probe on the pad to send
+ the playbin2-stream-changed event as sending it here might
+ find that the pad is blocked, so we'd block here, and the
+ pad might not be linked yet. Additionally, sending it here
+ apparently would be on the wrong thread */
+ select->sinkpad_data_probe =
+ gst_pad_add_data_probe (select->sinkpad,
+ (GCallback) stream_changed_data_probe, (gpointer) select);
+
+ g_mutex_unlock (group->stream_changed_pending_lock);
+ gst_message_unref (msg);
+ }
+
+ if (select->srcpad) {
+ GST_DEBUG_OBJECT (playbin, "unblocking %" GST_PTR_FORMAT,
+ select->srcpad);
+ gst_pad_set_blocked_async (select->srcpad, FALSE, selector_blocked,
+ NULL);
+ }
+ }
+ GST_SOURCE_GROUP_UNLOCK (group);
+ }
+
+ GST_PLAY_BIN_SHUTDOWN_UNLOCK (playbin);
+
+ return;
+
+shutdown:
+ {
+ GST_DEBUG ("ignoring, we are shutting down");
+ /* Request a flushing pad from playsink that we then link to the selector.
+ * Then we unblock the selectors so that they stop with a WRONG_STATE
+ * instead of a NOT_LINKED error.
+ */
+ GST_SOURCE_GROUP_LOCK (group);
+ for (i = 0; i < GST_PLAY_SINK_TYPE_LAST; i++) {
+ GstSourceSelect *select = &group->selector[i];
+
+ if (select->srcpad) {
+ if (select->sinkpad == NULL) {
+ GST_DEBUG_OBJECT (playbin, "requesting new flushing sink pad");
+ select->sinkpad =
+ gst_play_sink_request_pad (playbin->playsink,
+ GST_PLAY_SINK_TYPE_FLUSHING);
+ res = gst_pad_link (select->srcpad, select->sinkpad);
+ GST_DEBUG_OBJECT (playbin, "linked flushing, result: %d", res);
+ }
+ GST_DEBUG_OBJECT (playbin, "unblocking %" GST_PTR_FORMAT,
+ select->srcpad);
+ gst_pad_set_blocked_async (select->srcpad, FALSE, selector_blocked,
+ NULL);
+ }
+ }
+ GST_SOURCE_GROUP_UNLOCK (group);
+ return;
+ }
+}
+
+static void
+drained_cb (GstElement * decodebin, GstSourceGroup * group)
+{
+ GstPlayBin *playbin;
+
+ playbin = group->playbin;
+
+ GST_DEBUG_OBJECT (playbin, "about to finish in group %p", group);
+
+ /* after this call, we should have a next group to activate or we EOS */
+ g_signal_emit (G_OBJECT (playbin),
+ gst_play_bin_signals[SIGNAL_ABOUT_TO_FINISH], 0, NULL);
+
+ /* now activate the next group. If the app did not set a uri, this will
+ * fail and we can do EOS */
+ setup_next_source (playbin, GST_STATE_PAUSED);
+}
+
+/* Called when we must provide a list of factories to plug to @pad with @caps.
+ * We first check if we have a sink that can handle the format and if we do, we
+ * return NULL, to expose the pad. If we have no sink (or the sink does not
+ * work), we return the list of elements that can connect. */
+static GValueArray *
+autoplug_factories_cb (GstElement * decodebin, GstPad * pad,
+ GstCaps * caps, GstSourceGroup * group)
+{
+ GstPlayBin *playbin;
+ GList *mylist, *tmp;
+ GValueArray *result;
+
+ playbin = group->playbin;
+
+ GST_DEBUG_OBJECT (playbin, "factories group %p for %s:%s, %" GST_PTR_FORMAT,
+ group, GST_DEBUG_PAD_NAME (pad), caps);
+
+ /* filter out the elements based on the caps. */
+ g_mutex_lock (playbin->elements_lock);
+ gst_play_bin_update_elements_list (playbin);
+ mylist =
+ gst_element_factory_list_filter (playbin->elements, caps, GST_PAD_SINK,
+ FALSE);
+ g_mutex_unlock (playbin->elements_lock);
+
+ GST_DEBUG_OBJECT (playbin, "found factories %p", mylist);
+ GST_PLUGIN_FEATURE_LIST_DEBUG (mylist);
+
+ result = g_value_array_new (g_list_length (mylist));
+
+ for (tmp = mylist; tmp; tmp = tmp->next) {
+ GstElementFactory *factory = GST_ELEMENT_FACTORY_CAST (tmp->data);
+ GValue val = { 0, };
+
+ g_value_init (&val, G_TYPE_OBJECT);
+ g_value_set_object (&val, factory);
+ g_value_array_append (result, &val);
+ g_value_unset (&val);
+ }
+ gst_plugin_feature_list_free (mylist);
+
+ return result;
+}
+
+/* autoplug-continue decides, if a pad has raw caps that can be exposed
+ * directly or if further decoding is necessary. We use this to expose
+ * supported subtitles directly */
+
+/* FIXME 0.11: Remove the checks for ANY caps, a sink should specify
+ * explicitely the caps it supports and if it claims to support ANY
+ * caps it really should support everything */
+static gboolean
+autoplug_continue_cb (GstElement * element, GstPad * pad, GstCaps * caps,
+ GstSourceGroup * group)
+{
+ gboolean ret = TRUE;
+ GstElement *sink;
+ GstPad *sinkpad = NULL;
+
+ GST_PLAY_BIN_LOCK (group->playbin);
+ GST_SOURCE_GROUP_LOCK (group);
+
+ if ((sink = group->playbin->text_sink))
+ sinkpad = gst_element_get_static_pad (sink, "sink");
+ if (sinkpad) {
+ GstCaps *sinkcaps;
+
+ /* Ignore errors here, if a custom sink fails to go
+ * to READY things are wrong and will error out later
+ */
+ if (GST_STATE (sink) < GST_STATE_READY)
+ gst_element_set_state (sink, GST_STATE_READY);
+
+ sinkcaps = gst_pad_get_caps_reffed (sinkpad);
+ if (!gst_caps_is_any (sinkcaps))
+ ret = !gst_pad_accept_caps (sinkpad, caps);
+ gst_caps_unref (sinkcaps);
+ gst_object_unref (sinkpad);
+ } else {
+ GstCaps *subcaps = gst_subtitle_overlay_create_factory_caps ();
+ ret = !gst_caps_can_intersect (caps, subcaps);
+ gst_caps_unref (subcaps);
+ }
+ /* If autoplugging can stop don't do additional checks */
+ if (!ret)
+ goto done;
+
+ /* If this is from the subtitle uridecodebin we don't need to
+ * check the audio and video sink */
+ if (group->suburidecodebin
+ && gst_object_has_ancestor (GST_OBJECT_CAST (element),
+ GST_OBJECT_CAST (group->suburidecodebin)))
+ goto done;
+
+ if ((sink = group->audio_sink)) {
+ sinkpad = gst_element_get_static_pad (sink, "sink");
+ if (sinkpad) {
+ GstCaps *sinkcaps;
+
+ /* Ignore errors here, if a custom sink fails to go
+ * to READY things are wrong and will error out later
+ */
+ if (GST_STATE (sink) < GST_STATE_READY)
+ gst_element_set_state (sink, GST_STATE_READY);
+
+ sinkcaps = gst_pad_get_caps_reffed (sinkpad);
+ if (!gst_caps_is_any (sinkcaps))
+ ret = !gst_pad_accept_caps (sinkpad, caps);
+ gst_caps_unref (sinkcaps);
+ gst_object_unref (sinkpad);
+ }
+ }
+ if (!ret)
+ goto done;
+
+ if ((sink = group->video_sink)) {
+ sinkpad = gst_element_get_static_pad (sink, "sink");
+ if (sinkpad) {
+ GstCaps *sinkcaps;
+
+ /* Ignore errors here, if a custom sink fails to go
+ * to READY things are wrong and will error out later
+ */
+ if (GST_STATE (sink) < GST_STATE_READY)
+ gst_element_set_state (sink, GST_STATE_READY);
+
+ sinkcaps = gst_pad_get_caps_reffed (sinkpad);
+ if (!gst_caps_is_any (sinkcaps))
+ ret = !gst_pad_accept_caps (sinkpad, caps);
+ gst_caps_unref (sinkcaps);
+ gst_object_unref (sinkpad);
+ }
+ }
+
+done:
+ GST_SOURCE_GROUP_UNLOCK (group);
+ GST_PLAY_BIN_UNLOCK (group->playbin);
+
+ GST_DEBUG_OBJECT (group->playbin,
+ "continue autoplugging group %p for %s:%s, %" GST_PTR_FORMAT ": %d",
+ group, GST_DEBUG_PAD_NAME (pad), caps, ret);
+
+ return ret;
+}
+
+static gboolean
+sink_accepts_caps (GstElement * sink, GstCaps * caps)
+{
+ GstPad *sinkpad;
+
+ /* ... activate it ... We do this before adding it to the bin so that we
+ * don't accidentally make it post error messages that will stop
+ * everything. */
+ if (GST_STATE (sink) < GST_STATE_READY &&
+ gst_element_set_state (sink,
+ GST_STATE_READY) == GST_STATE_CHANGE_FAILURE) {
+ return FALSE;
+ }
+
+ if ((sinkpad = gst_element_get_static_pad (sink, "sink"))) {
+ /* Got the sink pad, now let's see if the element actually does accept the
+ * caps that we have */
+ if (!gst_pad_accept_caps (sinkpad, caps)) {
+ gst_object_unref (sinkpad);
+ return FALSE;
+ }
+ gst_object_unref (sinkpad);
+ }
+
+ return TRUE;
+}
+
+/* We are asked to select an element. See if the next element to check
+ * is a sink. If this is the case, we see if the sink works by setting it to
+ * READY. If the sink works, we return SELECT_EXPOSE to make decodebin
+ * expose the raw pad so that we can setup the mixers. */
+static GstAutoplugSelectResult
+autoplug_select_cb (GstElement * decodebin, GstPad * pad,
+ GstCaps * caps, GstElementFactory * factory, GstSourceGroup * group)
+{
+ GstPlayBin *playbin;
+ GstElement *element;
+ const gchar *klass;
+ GstPlaySinkType type;
+ GstElement **sinkp;
+
+ playbin = group->playbin;
+
+ GST_DEBUG_OBJECT (playbin, "select group %p for %s:%s, %" GST_PTR_FORMAT,
+ group, GST_DEBUG_PAD_NAME (pad), caps);
+
+ GST_DEBUG_OBJECT (playbin, "checking factory %s",
+ GST_PLUGIN_FEATURE_NAME (factory));
+
+ /* if it's not a sink, we just make decodebin try it */
+ if (!gst_element_factory_list_is_type (factory,
+ GST_ELEMENT_FACTORY_TYPE_SINK))
+ return GST_AUTOPLUG_SELECT_TRY;
+
+ /* it's a sink, see if an instance of it actually works */
+ GST_DEBUG_OBJECT (playbin, "we found a sink");
+
+ klass = gst_element_factory_get_klass (factory);
+
+ /* figure out the klass */
+ if (strstr (klass, "Audio")) {
+ GST_DEBUG_OBJECT (playbin, "we found an audio sink");
+ type = GST_PLAY_SINK_TYPE_AUDIO;
+ sinkp = &group->audio_sink;
+ } else if (strstr (klass, "Video")) {
+ GST_DEBUG_OBJECT (playbin, "we found a video sink");
+ type = GST_PLAY_SINK_TYPE_VIDEO;
+ sinkp = &group->video_sink;
+ } else {
+ /* unknown klass, skip this element */
+ GST_WARNING_OBJECT (playbin, "unknown sink klass %s found", klass);
+ return GST_AUTOPLUG_SELECT_SKIP;
+ }
+
+ /* if we are asked to do visualisations and it's an audio sink, skip the
+ * element. We can only do visualisations with raw sinks */
+ if (gst_play_sink_get_flags (playbin->playsink) & GST_PLAY_FLAG_VIS) {
+ if (type == GST_PLAY_SINK_TYPE_AUDIO) {
+ GST_DEBUG_OBJECT (playbin, "skip audio sink because of vis");
+ return GST_AUTOPLUG_SELECT_SKIP;
+ }
+ }
+
+ /* now see if we already have a sink element */
+ GST_SOURCE_GROUP_LOCK (group);
+ if (*sinkp) {
+ GstElement *sink = gst_object_ref (*sinkp);
+
+ if (sink_accepts_caps (sink, caps)) {
+ GST_DEBUG_OBJECT (playbin,
+ "Existing sink '%s' accepts caps: %" GST_PTR_FORMAT,
+ GST_ELEMENT_NAME (sink), caps);
+ gst_object_unref (sink);
+ GST_SOURCE_GROUP_UNLOCK (group);
+ return GST_AUTOPLUG_SELECT_EXPOSE;
+ } else {
+ GST_DEBUG_OBJECT (playbin,
+ "Existing sink '%s' does not accept caps: %" GST_PTR_FORMAT,
+ GST_ELEMENT_NAME (sink), caps);
+ gst_object_unref (sink);
+ GST_SOURCE_GROUP_UNLOCK (group);
+ return GST_AUTOPLUG_SELECT_SKIP;
+ }
+ }
+ GST_DEBUG_OBJECT (playbin, "we have no pending sink, try to create one");
+
+ if ((element = gst_element_factory_create (factory, NULL)) == NULL) {
+ GST_WARNING_OBJECT (playbin, "Could not create an element from %s",
+ gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
+ GST_SOURCE_GROUP_UNLOCK (group);
+ return GST_AUTOPLUG_SELECT_SKIP;
+ }
+
+ /* Check if the selected sink actually supports the
+ * caps and can be set to READY*/
+ if (!sink_accepts_caps (element, caps)) {
+ gst_element_set_state (element, GST_STATE_NULL);
+ gst_object_unref (element);
+ GST_SOURCE_GROUP_UNLOCK (group);
+ return GST_AUTOPLUG_SELECT_SKIP;
+ }
+
+ /* remember the sink in the group now, the element is floating, we take
+ * ownership now
+ *
+ * store the sink in the group, we will configure it later when we
+ * reconfigure the sink */
+ GST_DEBUG_OBJECT (playbin, "remember sink");
+ gst_object_ref_sink (element);
+ *sinkp = element;
+ GST_SOURCE_GROUP_UNLOCK (group);
+
+ /* tell decodebin to expose the pad because we are going to use this
+ * sink */
+ GST_DEBUG_OBJECT (playbin, "we found a working sink, expose pad");
+
+ return GST_AUTOPLUG_SELECT_EXPOSE;
+}
+
+static void
+notify_source_cb (GstElement * uridecodebin, GParamSpec * pspec,
+ GstSourceGroup * group)
+{
+ GstPlayBin *playbin;
+ GstElement *source;
+
+ playbin = group->playbin;
+
+ g_object_get (group->uridecodebin, "source", &source, NULL);
+
+ GST_OBJECT_LOCK (playbin);
+ if (playbin->source)
+ gst_object_unref (playbin->source);
+ playbin->source = source;
+ GST_OBJECT_UNLOCK (playbin);
+
+ g_object_notify (G_OBJECT (playbin), "source");
+
+ g_signal_emit (playbin, gst_play_bin_signals[SIGNAL_SOURCE_SETUP],
+ 0, playbin->source);
+}
+
+/* must be called with the group lock */
+static gboolean
+group_set_locked_state_unlocked (GstPlayBin * playbin, GstSourceGroup * group,
+ gboolean locked)
+{
+ GST_DEBUG_OBJECT (playbin, "locked_state %d on group %p", locked, group);
+
+ if (group->uridecodebin)
+ gst_element_set_locked_state (group->uridecodebin, locked);
+ if (group->suburidecodebin)
+ gst_element_set_locked_state (group->suburidecodebin, locked);
+
+ return TRUE;
+}
+
+/* must be called with PLAY_BIN_LOCK */
+static gboolean
+activate_group (GstPlayBin * playbin, GstSourceGroup * group, GstState target)
+{
+ GstElement *uridecodebin;
+ GstElement *suburidecodebin = NULL;
+ GstPlayFlags flags;
+
+ g_return_val_if_fail (group->valid, FALSE);
+ g_return_val_if_fail (!group->active, FALSE);
+
+ GST_DEBUG_OBJECT (playbin, "activating group %p", group);
+
+ GST_SOURCE_GROUP_LOCK (group);
+
+ /* First set up the custom sources */
+ if (playbin->audio_sink)
+ group->audio_sink = gst_object_ref (playbin->audio_sink);
+ if (playbin->video_sink)
+ group->video_sink = gst_object_ref (playbin->video_sink);
+
+ g_list_free (group->stream_changed_pending);
+ group->stream_changed_pending = NULL;
+ if (!group->stream_changed_pending_lock)
+ group->stream_changed_pending_lock = g_mutex_new ();
+
+ if (group->uridecodebin) {
+ GST_DEBUG_OBJECT (playbin, "reusing existing uridecodebin");
+ uridecodebin = group->uridecodebin;
+ gst_element_set_state (uridecodebin, GST_STATE_READY);
+ gst_bin_add (GST_BIN_CAST (playbin), gst_object_ref (uridecodebin));
+ } else {
+ GST_DEBUG_OBJECT (playbin, "making new uridecodebin");
+ uridecodebin = gst_element_factory_make ("uridecodebin", NULL);
+ if (!uridecodebin)
+ goto no_decodebin;
+ gst_bin_add (GST_BIN_CAST (playbin), uridecodebin);
+ group->uridecodebin = gst_object_ref (uridecodebin);
+ }
+
+ flags = gst_play_sink_get_flags (playbin->playsink);
+
+ g_object_set (uridecodebin,
+ /* configure connection speed */
+ "connection-speed", playbin->connection_speed / 1000,
+ /* configure uri */
+ "uri", group->uri,
+ /* configure download buffering */
+ "download", ((flags & GST_PLAY_FLAG_DOWNLOAD) != 0),
+ /* configure buffering of demuxed/parsed data */
+ "use-buffering", ((flags & GST_PLAY_FLAG_BUFFERING) != 0),
+ /* configure buffering parameters */
+ "buffer-duration", playbin->buffer_duration,
+ "buffer-size", playbin->buffer_size,
+ "ring-buffer-max-size", playbin->ring_buffer_max_size, NULL);
+
+ /* connect pads and other things */
+ group->pad_added_id = g_signal_connect (uridecodebin, "pad-added",
+ G_CALLBACK (pad_added_cb), group);
+ group->pad_removed_id = g_signal_connect (uridecodebin, "pad-removed",
+ G_CALLBACK (pad_removed_cb), group);
+ group->no_more_pads_id = g_signal_connect (uridecodebin, "no-more-pads",
+ G_CALLBACK (no_more_pads_cb), group);
+ group->notify_source_id = g_signal_connect (uridecodebin, "notify::source",
+ G_CALLBACK (notify_source_cb), group);
+
+ /* we have 1 pending no-more-pads */
+ group->pending = 1;
+
+ /* is called when the uridecodebin is out of data and we can switch to the
+ * next uri */
+ group->drained_id =
+ g_signal_connect (uridecodebin, "drained", G_CALLBACK (drained_cb),
+ group);
+
+ /* will be called when a new media type is found. We return a list of decoders
+ * including sinks for decodebin to try */
+ group->autoplug_factories_id =
+ g_signal_connect (uridecodebin, "autoplug-factories",
+ G_CALLBACK (autoplug_factories_cb), group);
+ group->autoplug_select_id =
+ g_signal_connect (uridecodebin, "autoplug-select",
+ G_CALLBACK (autoplug_select_cb), group);
+ group->autoplug_continue_id =
+ g_signal_connect (uridecodebin, "autoplug-continue",
+ G_CALLBACK (autoplug_continue_cb), group);
+
+ if (group->suburi) {
+ /* subtitles */
+ if (group->suburidecodebin) {
+ GST_DEBUG_OBJECT (playbin, "reusing existing suburidecodebin");
+ suburidecodebin = group->suburidecodebin;
+ gst_element_set_state (suburidecodebin, GST_STATE_READY);
+ gst_bin_add (GST_BIN_CAST (playbin), gst_object_ref (suburidecodebin));
+ } else {
+ GST_DEBUG_OBJECT (playbin, "making new suburidecodebin");
+ suburidecodebin = gst_element_factory_make ("uridecodebin", NULL);
+ if (!suburidecodebin)
+ goto no_decodebin;
+
+ gst_bin_add (GST_BIN_CAST (playbin), suburidecodebin);
+ group->suburidecodebin = gst_object_ref (suburidecodebin);
+ }
+
+ g_object_set (suburidecodebin,
+ /* configure connection speed */
+ "connection-speed", playbin->connection_speed,
+ /* configure uri */
+ "uri", group->suburi, NULL);
+
+ /* connect pads and other things */
+ group->sub_pad_added_id = g_signal_connect (suburidecodebin, "pad-added",
+ G_CALLBACK (pad_added_cb), group);
+ group->sub_pad_removed_id = g_signal_connect (suburidecodebin,
+ "pad-removed", G_CALLBACK (pad_removed_cb), group);
+ group->sub_no_more_pads_id = g_signal_connect (suburidecodebin,
+ "no-more-pads", G_CALLBACK (no_more_pads_cb), group);
+
+ group->sub_autoplug_continue_id =
+ g_signal_connect (suburidecodebin, "autoplug-continue",
+ G_CALLBACK (autoplug_continue_cb), group);
+
+ /* we have 2 pending no-more-pads */
+ group->pending = 2;
+ group->sub_pending = TRUE;
+ } else {
+ group->sub_pending = FALSE;
+ }
+
+ /* release the group lock before setting the state of the decodebins, they
+ * might fire signals in this thread that we need to handle with the
+ * group_lock taken. */
+ GST_SOURCE_GROUP_UNLOCK (group);
+
+ if (suburidecodebin) {
+ if (gst_element_set_state (suburidecodebin,
+ target) == GST_STATE_CHANGE_FAILURE) {
+ GST_DEBUG_OBJECT (playbin,
+ "failed state change of subtitle uridecodebin");
+ GST_SOURCE_GROUP_LOCK (group);
+
+ REMOVE_SIGNAL (group->suburidecodebin, group->sub_pad_added_id);
+ REMOVE_SIGNAL (group->suburidecodebin, group->sub_pad_removed_id);
+ REMOVE_SIGNAL (group->suburidecodebin, group->sub_no_more_pads_id);
+ REMOVE_SIGNAL (group->suburidecodebin, group->sub_autoplug_continue_id);
+ /* Might already be removed because of an error message */
+ if (GST_OBJECT_PARENT (suburidecodebin) == GST_OBJECT_CAST (playbin))
+ gst_bin_remove (GST_BIN_CAST (playbin), suburidecodebin);
+ if (group->sub_pending) {
+ group->pending--;
+ group->sub_pending = FALSE;
+ }
+ gst_element_set_state (suburidecodebin, GST_STATE_READY);
+ GST_SOURCE_GROUP_UNLOCK (group);
+ }
+ }
+ if (gst_element_set_state (uridecodebin, target) == GST_STATE_CHANGE_FAILURE)
+ goto uridecodebin_failure;
+
+ GST_SOURCE_GROUP_LOCK (group);
+ /* alow state changes of the playbin2 affect the group elements now */
+ group_set_locked_state_unlocked (playbin, group, FALSE);
+ group->active = TRUE;
+ GST_SOURCE_GROUP_UNLOCK (group);
+
+ return TRUE;
+
+ /* ERRORS */
+no_decodebin:
+ {
+ GstMessage *msg;
+
+ /* delete any custom sinks we might have */
+ if (group->audio_sink) {
+ /* If this is a automatically created sink set it to NULL */
+ if (group->audio_sink != playbin->audio_sink)
+ gst_element_set_state (group->audio_sink, GST_STATE_NULL);
+ gst_object_unref (group->audio_sink);
+ }
+ group->audio_sink = NULL;
+ if (group->video_sink) {
+ /* If this is a automatically created sink set it to NULL */
+ if (group->video_sink != playbin->video_sink)
+ gst_element_set_state (group->video_sink, GST_STATE_NULL);
+ gst_object_unref (group->video_sink);
+ }
+ group->video_sink = NULL;
+
+ GST_SOURCE_GROUP_UNLOCK (group);
+ msg =
+ gst_missing_element_message_new (GST_ELEMENT_CAST (playbin),
+ "uridecodebin");
+ gst_element_post_message (GST_ELEMENT_CAST (playbin), msg);
+
+ GST_ELEMENT_ERROR (playbin, CORE, MISSING_PLUGIN,
+ (_("Could not create \"uridecodebin\" element.")), (NULL));
+ return FALSE;
+ }
+uridecodebin_failure:
+ {
+ /* delete any custom sinks we might have */
+ if (group->audio_sink) {
+ /* If this is a automatically created sink set it to NULL */
+ if (group->audio_sink != playbin->audio_sink)
+ gst_element_set_state (group->audio_sink, GST_STATE_NULL);
+ gst_object_unref (group->audio_sink);
+ }
+ group->audio_sink = NULL;
+ if (group->video_sink) {
+ /* If this is a automatically created sink set it to NULL */
+ if (group->video_sink != playbin->video_sink)
+ gst_element_set_state (group->video_sink, GST_STATE_NULL);
+ gst_object_unref (group->video_sink);
+ }
+ group->video_sink = NULL;
+
+ GST_DEBUG_OBJECT (playbin, "failed state change of uridecodebin");
+ return FALSE;
+ }
+}
+
+/* unlink a group of uridecodebins from the sink.
+ * must be called with PLAY_BIN_LOCK */
+static gboolean
+deactivate_group (GstPlayBin * playbin, GstSourceGroup * group)
+{
+ gint i;
+
+ g_return_val_if_fail (group->valid, FALSE);
+ g_return_val_if_fail (group->active, FALSE);
+
+ GST_DEBUG_OBJECT (playbin, "unlinking group %p", group);
+
+ GST_SOURCE_GROUP_LOCK (group);
+ group->active = FALSE;
+ for (i = 0; i < GST_PLAY_SINK_TYPE_LAST; i++) {
+ GstSourceSelect *select = &group->selector[i];
+
+ GST_DEBUG_OBJECT (playbin, "unlinking selector %s", select->media_list[0]);
+
+ if (select->srcpad) {
+ if (select->sinkpad) {
+ GST_LOG_OBJECT (playbin, "unlinking from sink");
+ gst_pad_unlink (select->srcpad, select->sinkpad);
+
+ /* release back */
+ GST_LOG_OBJECT (playbin, "release sink pad");
+ gst_play_sink_release_pad (playbin->playsink, select->sinkpad);
+ select->sinkpad = NULL;
+ }
+
+ gst_object_unref (select->srcpad);
+ select->srcpad = NULL;
+ }
+
+ if (select->selector) {
+ gint n;
+
+ /* release and unref requests pad from the selector */
+ for (n = 0; n < select->channels->len; n++) {
+ GstPad *sinkpad = g_ptr_array_index (select->channels, n);
+
+ gst_element_release_request_pad (select->selector, sinkpad);
+ gst_object_unref (sinkpad);
+ }
+ g_ptr_array_set_size (select->channels, 0);
+
+ gst_element_set_state (select->selector, GST_STATE_NULL);
+ gst_bin_remove (GST_BIN_CAST (playbin), select->selector);
+ select->selector = NULL;
+ }
+ }
+ /* delete any custom sinks we might have */
+ if (group->audio_sink) {
+ /* If this is a automatically created sink set it to NULL */
+ if (group->audio_sink != playbin->audio_sink)
+ gst_element_set_state (group->audio_sink, GST_STATE_NULL);
+ gst_object_unref (group->audio_sink);
+ }
+ group->audio_sink = NULL;
+ if (group->video_sink) {
+ /* If this is a automatically created sink set it to NULL */
+ if (group->video_sink != playbin->video_sink)
+ gst_element_set_state (group->video_sink, GST_STATE_NULL);
+ gst_object_unref (group->video_sink);
+ }
+ group->video_sink = NULL;
+
+ if (group->uridecodebin) {
+ REMOVE_SIGNAL (group->uridecodebin, group->pad_added_id);
+ REMOVE_SIGNAL (group->uridecodebin, group->pad_removed_id);
+ REMOVE_SIGNAL (group->uridecodebin, group->no_more_pads_id);
+ REMOVE_SIGNAL (group->uridecodebin, group->notify_source_id);
+ REMOVE_SIGNAL (group->uridecodebin, group->drained_id);
+ REMOVE_SIGNAL (group->uridecodebin, group->autoplug_factories_id);
+ REMOVE_SIGNAL (group->uridecodebin, group->autoplug_select_id);
+ REMOVE_SIGNAL (group->uridecodebin, group->autoplug_continue_id);
+ gst_bin_remove (GST_BIN_CAST (playbin), group->uridecodebin);
+ }
+
+ if (group->suburidecodebin) {
+ REMOVE_SIGNAL (group->suburidecodebin, group->sub_pad_added_id);
+ REMOVE_SIGNAL (group->suburidecodebin, group->sub_pad_removed_id);
+ REMOVE_SIGNAL (group->suburidecodebin, group->sub_no_more_pads_id);
+ REMOVE_SIGNAL (group->suburidecodebin, group->sub_autoplug_continue_id);
+
+ /* Might already be removed because of errors */
+ if (GST_OBJECT_PARENT (group->suburidecodebin) == GST_OBJECT_CAST (playbin))
+ gst_bin_remove (GST_BIN_CAST (playbin), group->suburidecodebin);
+ }
+
+ GST_SOURCE_GROUP_UNLOCK (group);
+
+ return TRUE;
+}
+
+/* setup the next group to play, this assumes the next_group is valid and
+ * configured. It swaps out the current_group and activates the valid
+ * next_group. */
+static gboolean
+setup_next_source (GstPlayBin * playbin, GstState target)
+{
+ GstSourceGroup *new_group, *old_group;
+
+ GST_DEBUG_OBJECT (playbin, "setup sources");
+
+ /* see if there is a next group */
+ GST_PLAY_BIN_LOCK (playbin);
+ new_group = playbin->next_group;
+ if (!new_group || !new_group->valid)
+ goto no_next_group;
+
+ /* first unlink the current source, if any */
+ old_group = playbin->curr_group;
+ if (old_group && old_group->valid && old_group->active) {
+ gst_play_bin_update_cached_duration (playbin);
+ /* unlink our pads with the sink */
+ deactivate_group (playbin, old_group);
+ old_group->valid = FALSE;
+ }
+
+ /* swap old and new */
+ playbin->curr_group = new_group;
+ playbin->next_group = old_group;
+
+ /* activate the new group */
+ if (!activate_group (playbin, new_group, target))
+ goto activate_failed;
+
+ GST_PLAY_BIN_UNLOCK (playbin);
+
+ return TRUE;
+
+ /* ERRORS */
+no_next_group:
+ {
+ GST_DEBUG_OBJECT (playbin, "no next group");
+ if (target == GST_STATE_READY && new_group && new_group->uri == NULL)
+ GST_ELEMENT_ERROR (playbin, RESOURCE, NOT_FOUND, ("No URI set"), (NULL));
+ GST_PLAY_BIN_UNLOCK (playbin);
+ return FALSE;
+ }
+activate_failed:
+ {
+ GST_DEBUG_OBJECT (playbin, "activate failed");
+ GST_PLAY_BIN_UNLOCK (playbin);
+ return FALSE;
+ }
+}
+
+/* The group that is currently playing is copied again to the
+ * next_group so that it will start playing the next time.
+ */
+static gboolean
+save_current_group (GstPlayBin * playbin)
+{
+ GstSourceGroup *curr_group;
+
+ GST_DEBUG_OBJECT (playbin, "save current group");
+
+ /* see if there is a current group */
+ GST_PLAY_BIN_LOCK (playbin);
+ curr_group = playbin->curr_group;
+ if (curr_group && curr_group->valid) {
+ /* unlink our pads with the sink */
+ deactivate_group (playbin, curr_group);
+ }
+ /* swap old and new */
+ playbin->curr_group = playbin->next_group;
+ playbin->next_group = curr_group;
+ GST_PLAY_BIN_UNLOCK (playbin);
+
+ return TRUE;
+}
+
+/* clear the locked state from all groups. This function is called before a
+ * state change to NULL is performed on them. */
+static gboolean
+groups_set_locked_state (GstPlayBin * playbin, gboolean locked)
+{
+ GST_DEBUG_OBJECT (playbin, "setting locked state to %d on all groups",
+ locked);
+
+ GST_PLAY_BIN_LOCK (playbin);
+ GST_SOURCE_GROUP_LOCK (playbin->curr_group);
+ group_set_locked_state_unlocked (playbin, playbin->curr_group, locked);
+ GST_SOURCE_GROUP_UNLOCK (playbin->curr_group);
+ GST_SOURCE_GROUP_LOCK (playbin->next_group);
+ group_set_locked_state_unlocked (playbin, playbin->next_group, locked);
+ GST_SOURCE_GROUP_UNLOCK (playbin->next_group);
+ GST_PLAY_BIN_UNLOCK (playbin);
+
+ return TRUE;
+}
+
+static GstStateChangeReturn
+gst_play_bin_change_state (GstElement * element, GstStateChange transition)
+{
+ GstStateChangeReturn ret;
+ GstPlayBin *playbin;
+ gboolean do_save = FALSE;
+
+ playbin = GST_PLAY_BIN (element);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_NULL_TO_READY:
+ memset (&playbin->duration, 0, sizeof (playbin->duration));
+ break;
+ case GST_STATE_CHANGE_READY_TO_PAUSED:
+ GST_LOG_OBJECT (playbin, "clearing shutdown flag");
+ memset (&playbin->duration, 0, sizeof (playbin->duration));
+ g_atomic_int_set (&playbin->shutdown, 0);
+
+ if (!setup_next_source (playbin, GST_STATE_READY)) {
+ ret = GST_STATE_CHANGE_FAILURE;
+ goto failure;
+ }
+ break;
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
+ async_down:
+ /* FIXME unlock our waiting groups */
+ GST_LOG_OBJECT (playbin, "setting shutdown flag");
+ g_atomic_int_set (&playbin->shutdown, 1);
+ memset (&playbin->duration, 0, sizeof (playbin->duration));
+
+ /* wait for all callbacks to end by taking the lock.
+ * No dynamic (critical) new callbacks will
+ * be able to happen as we set the shutdown flag. */
+ GST_PLAY_BIN_DYN_LOCK (playbin);
+ GST_LOG_OBJECT (playbin, "dynamic lock taken, we can continue shutdown");
+ GST_PLAY_BIN_DYN_UNLOCK (playbin);
+ if (!do_save)
+ break;
+ case GST_STATE_CHANGE_READY_TO_NULL:
+ /* we go async to PAUSED, so if that fails, we never make it to PAUSED
+ * an no state change PAUSED to READY passes here,
+ * though it is a nice-to-have ... */
+ if (!g_atomic_int_get (&playbin->shutdown)) {
+ do_save = TRUE;
+ goto async_down;
+ }
+ memset (&playbin->duration, 0, sizeof (playbin->duration));
+
+ /* unlock so that all groups go to NULL */
+ groups_set_locked_state (playbin, FALSE);
+ break;
+ default:
+ break;
+ }
+
+ ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+ if (ret == GST_STATE_CHANGE_FAILURE)
+ goto failure;
+
+ switch (transition) {
+ case GST_STATE_CHANGE_READY_TO_PAUSED:
+ break;
+ case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
+ /* FIXME Release audio device when we implement that */
+ break;
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
+ save_current_group (playbin);
+ break;
+ case GST_STATE_CHANGE_READY_TO_NULL:
+ {
+ guint i;
+
+ /* also do missed state change down to READY */
+ if (do_save)
+ save_current_group (playbin);
+ /* Deactive the groups, set the uridecodebins to NULL
+ * and unref them.
+ */
+ for (i = 0; i < 2; i++) {
+ if (playbin->groups[i].active && playbin->groups[i].valid) {
+ deactivate_group (playbin, &playbin->groups[i]);
+ playbin->groups[i].valid = FALSE;
+ }
+
+ if (playbin->groups[i].uridecodebin) {
+ gst_element_set_state (playbin->groups[i].uridecodebin,
+ GST_STATE_NULL);
+ gst_object_unref (playbin->groups[i].uridecodebin);
+ playbin->groups[i].uridecodebin = NULL;
+ }
+
+ if (playbin->groups[i].suburidecodebin) {
+ gst_element_set_state (playbin->groups[i].suburidecodebin,
+ GST_STATE_NULL);
+ gst_object_unref (playbin->groups[i].suburidecodebin);
+ playbin->groups[i].suburidecodebin = NULL;
+ }
+ }
+
+ /* Set our sinks back to NULL, they might not be child of playbin */
+ if (playbin->audio_sink)
+ gst_element_set_state (playbin->audio_sink, GST_STATE_NULL);
+ if (playbin->video_sink)
+ gst_element_set_state (playbin->video_sink, GST_STATE_NULL);
+ if (playbin->text_sink)
+ gst_element_set_state (playbin->text_sink, GST_STATE_NULL);
+
+ /* make sure the groups don't perform a state change anymore until we
+ * enable them again */
+ groups_set_locked_state (playbin, TRUE);
+ break;
+ }
+ default:
+ break;
+ }
+
+ return ret;
+
+ /* ERRORS */
+failure:
+ {
+ if (transition == GST_STATE_CHANGE_READY_TO_PAUSED) {
+ GstSourceGroup *curr_group;
+
+ curr_group = playbin->curr_group;
+ if (curr_group && curr_group->active && curr_group->valid) {
+ /* unlink our pads with the sink */
+ deactivate_group (playbin, curr_group);
+ curr_group->valid = FALSE;
+ }
+
+ /* Swap current and next group back */
+ playbin->curr_group = playbin->next_group;
+ playbin->next_group = curr_group;
+ }
+ return ret;
+ }
+}
+
+gboolean
+gst_play_bin2_plugin_init (GstPlugin * plugin)
+{
+ GST_DEBUG_CATEGORY_INIT (gst_play_bin_debug, "playbin2", 0, "play bin");
+
+ return gst_element_register (plugin, "playbin2", GST_RANK_NONE,
+ GST_TYPE_PLAY_BIN);
+}
projects / mafwsubrenderer / blobdiff