/* GStreamer * Copyright (C) <2007> Wim Taymans * Copyright (C) <2011> Sebastian Dröge * Copyright (C) <2013> Collabora Ltd. * Author: Sebastian Dröge * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ /** * SECTION:element-playbin * * Playbin provides a stand-alone everything-in-one abstraction for an * audio and/or video player. * * Playbin can handle both audio and video files and features * * * automatic file type recognition and based on that automatic * selection and usage of the right audio/video/subtitle demuxers/decoders * * * visualisations for audio files * * * subtitle support for video files. Subtitles can be store in external * files. * * * stream selection between different video/audio/subtitles streams * * * meta info (tag) extraction * * * easy access to the last video sample * * * buffering when playing streams over a network * * * volume control with mute option * * * * * Usage * * A playbin element can be created just like any other element using * gst_element_factory_make(). The file/URI to play should be set via the #GstPlayBin: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 #GstPlayBin: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. * * * * Advanced Usage: specifying the audio and video sink * * By default, if no audio sink or video sink has been specified via the * #GstPlayBin:audio-sink or #GstPlayBin: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 * #GstPlayBin:audio-sink or #GstPlayBin: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!). * * * * Retrieving Tags and Other Meta Data * * 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. * * * * Buffering * 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: * |[ * 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). * * * Embedding the video window in your application * 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 #GstVideoOverlay interface, which most * video sinks implement. See the documentation there for more details. * * * Specifying which CD/DVD device to use * The device to use for CDs/DVDs needs to be set on the source element * playbin creates before it is opened. The most generic way of doing this * is to connect to playbin's "source-setup" (or "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 some cases * the device can also be set as part of the URI, but it depends on the * elements involved if this will work or not. For example, for DVD menu * playback, the following syntax might work (if the resindvd plugin is used): * dvd://[/path/to/device] * * * Handling redirects * * 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. * * * * Examples * |[ * 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:// * ]| This will play back the DVD in your disc drive (assuming * the drive is detected automatically by the plugin). * */ /* FIXME 0.11: suppress warnings for deprecated API such as GValueArray * with newer GLib versions (>= 2.31.0) */ #define GLIB_DISABLE_DEPRECATION_WARNINGS #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include #include #include #include #include #include #include "gstplay-enum.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 _GstSourceCombine GstSourceCombine; typedef GstCaps *(*SourceCombineGetMediaCapsFunc) (void); /* has the info for a combiner and provides the link to the sink */ struct _GstSourceCombine { const gchar *media_list[8]; /* the media types for the combiner */ SourceCombineGetMediaCapsFunc get_media_caps; /* more complex caps for the combiner */ GstPlaySinkType type; /* the sink pad type of the combiner */ GstElement *combiner; /* the combiner */ GPtrArray *channels; GstPad *srcpad; /* the source pad of the combiner */ GstPad *sinkpad; /* the sinkpad of the sink when the combiner * is linked */ gulong block_id; gboolean has_active_pad; /* stream combiner has the "active-pad" property */ gboolean has_always_ok; /* stream combiner's sink pads have the "always-ok" property */ gboolean has_tags; /* stream combiner's sink pads have the "tags" property */ }; #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))) enum { PLAYBIN_STREAM_AUDIO = 0, PLAYBIN_STREAM_VIDEO, PLAYBIN_STREAM_TEXT, PLAYBIN_STREAM_LAST }; static void avelements_free (gpointer data); static GSequence *avelements_create (GstPlayBin * playbin, gboolean isaudioelement); /* The GstAudioVideoElement structure holding the audio/video decoder * and the audio/video sink factories together with field indicating * the number of common caps features */ typedef struct { GstElementFactory *dec; /* audio:video decoder */ GstElementFactory *sink; /* audio:video sink */ guint n_comm_cf; /* number of common caps features */ } GstAVElement; /* 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 combiner pads */ GPtrArray *audio_channels; /* links to combiner pads */ GPtrArray *text_channels; /* links to combiner pads */ /* Sinks for this group. These are initialized with * the configure or currently used sink, otherwise * left as NULL and playbin tries to automatically * select a good sink */ GstElement *audio_sink; GstElement *video_sink; GstElement *text_sink; /* uridecodebins for uri and subtitle uri */ GstElement *uridecodebin; GstElement *suburidecodebin; gint pending; gboolean sub_pending; gboolean have_group_id; guint group_id; 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 autoplug_query_id; gulong sub_pad_added_id; gulong sub_pad_removed_id; gulong sub_no_more_pads_id; gulong sub_autoplug_continue_id; gulong sub_autoplug_query_id; gulong block_id; GMutex stream_changed_pending_lock; gboolean stream_changed_pending; /* to prevent that suburidecodebin seek flushes disrupt playback */ GMutex suburi_flushes_to_drop_lock; GSList *suburi_flushes_to_drop; /* buffering message stored for after switching */ GstMessage *pending_buffering_msg; /* combiners for different streams */ GstSourceCombine combiner[PLAYBIN_STREAM_LAST]; }; #define GST_PLAY_BIN_GET_LOCK(bin) (&((GstPlayBin*)(bin))->lock) #define GST_PLAY_BIN_LOCK(bin) (g_rec_mutex_lock (GST_PLAY_BIN_GET_LOCK(bin))) #define GST_PLAY_BIN_UNLOCK(bin) (g_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); \ /** * GstPlayBin: * * playbin element structure */ struct _GstPlayBin { GstPipeline parent; GRecMutex 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 */ guint64 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) */ gboolean force_aspect_ratio; /* 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 */ gboolean video_pending_flush_finish; /* whether we are pending to send a custom * custom-video-flush-finish event * on pad activation */ gboolean audio_pending_flush_finish; /* whether we are pending to send a custom * custom-audio-flush-finish event * on pad activation */ gboolean text_pending_flush_finish; /* whether we are pending to send a custom * custom-subtitle-flush-finish event * on pad activation */ GstElement *audio_sink; /* configured audio sink, or NULL */ GstElement *video_sink; /* configured video sink, or NULL */ GstElement *text_sink; /* configured text sink, or NULL */ GstElement *audio_stream_combiner; /* configured audio stream combiner, or NULL */ GstElement *video_stream_combiner; /* configured video stream combiner, or NULL */ GstElement *text_stream_combiner; /* configured text stream combiner, or NULL */ GSequence *aelements; /* a list of GstAVElements for audio stream */ GSequence *velements; /* a list of GstAVElements for video stream */ struct { gboolean valid; GstFormat format; gint64 duration; } duration[5]; /* cached durations */ guint64 ring_buffer_max_size; /* 0 means disabled */ GList *contexts; }; 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 sample and convert it to the given caps */ GstSample *(*convert_sample) (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 | GST_PLAY_FLAG_DEINTERLACE | \ GST_PLAY_FLAG_SOFT_COLORBALANCE #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_CURRENT_URI, PROP_SUBURI, PROP_CURRENT_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_VIDEO_STREAM_COMBINER, PROP_AUDIO_STREAM_COMBINER, PROP_TEXT_STREAM_COMBINER, PROP_VOLUME, PROP_MUTE, PROP_SAMPLE, PROP_FONT_DESC, PROP_CONNECTION_SPEED, PROP_BUFFER_SIZE, PROP_BUFFER_DURATION, PROP_AV_OFFSET, PROP_RING_BUFFER_MAX_SIZE, PROP_FORCE_ASPECT_RATIO, PROP_AUDIO_FILTER, PROP_VIDEO_FILTER, PROP_LAST }; /* signals */ enum { SIGNAL_ABOUT_TO_FINISH, SIGNAL_CONVERT_SAMPLE, 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 GstStaticCaps raw_audio_caps = GST_STATIC_CAPS ("audio/x-raw(ANY)"); static GstStaticCaps raw_video_caps = GST_STATIC_CAPS ("video/x-raw(ANY)"); 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 void gst_play_bin_set_context (GstElement * element, GstContext * context); 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 GstSample *gst_play_bin_convert_sample (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 (GstSourceGroup * group, GstElement * suburidecodebin, gboolean block); static void gst_play_bin_suburidecodebin_seek_to_start (GstSourceGroup * group); 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 void gst_play_bin_overlay_init (gpointer g_iface, gpointer g_iface_data); static void gst_play_bin_navigation_init (gpointer g_iface, gpointer g_iface_data); static void gst_play_bin_colorbalance_init (gpointer g_iface, gpointer g_iface_data); 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 }; static const GInterfaceInfo ov_info = { gst_play_bin_overlay_init, NULL, NULL }; static const GInterfaceInfo nav_info = { gst_play_bin_navigation_init, NULL, NULL }; static const GInterfaceInfo col_info = { gst_play_bin_colorbalance_init, NULL, NULL }; gst_play_bin_type = g_type_register_static (GST_TYPE_PIPELINE, "GstPlayBin", &gst_play_bin_info, 0); g_type_add_interface_static (gst_play_bin_type, GST_TYPE_STREAM_VOLUME, &svol_info); g_type_add_interface_static (gst_play_bin_type, GST_TYPE_VIDEO_OVERLAY, &ov_info); g_type_add_interface_static (gst_play_bin_type, GST_TYPE_NAVIGATION, &nav_info); g_type_add_interface_static (gst_play_bin_type, GST_TYPE_COLOR_BALANCE, &col_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; /** * GstPlayBin: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)); /** * GstPlayBin:current-uri * * The currently playing uri. */ g_object_class_install_property (gobject_klass, PROP_CURRENT_URI, g_param_spec_string ("current-uri", "Current URI", "The currently playing URI", NULL, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); /** * GstPlayBin: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)); /** * GstPlayBin:current-suburi * * The currently playing subtitle uri. */ g_object_class_install_property (gobject_klass, PROP_CURRENT_SUBURI, g_param_spec_string ("current-suburi", "Current .sub-URI", "The currently playing URI of a subtitle", NULL, G_PARAM_READABLE | 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)); /** * GstPlayBin: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)); /** * GstPlayBin: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)); /** * GstPlayBin: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)); /** * GstPlayBin: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)); /** * GstPlayBin: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)); /** * GstPlayBin: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)); /** * GstPlayBin: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_FILTER, g_param_spec_object ("video-filter", "Video filter", "the video filter(s) to apply, if possible", GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_klass, PROP_AUDIO_FILTER, g_param_spec_object ("audio-filter", "Audio filter", "the audio filter(s) to apply, if possible", GST_TYPE_ELEMENT, 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 subtitleoverlay)", GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /** * GstPlayBin:video-stream-combiner * * Get or set the current video stream combiner. By default, an input-selector * is created and deleted as-needed. */ g_object_class_install_property (gobject_klass, PROP_VIDEO_STREAM_COMBINER, g_param_spec_object ("video-stream-combiner", "Video stream combiner", "Current video stream combiner (NULL = input-selector)", GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /** * GstPlayBin:audio-stream-combiner * * Get or set the current audio stream combiner. By default, an input-selector * is created and deleted as-needed. */ g_object_class_install_property (gobject_klass, PROP_AUDIO_STREAM_COMBINER, g_param_spec_object ("audio-stream-combiner", "Audio stream combiner", "Current audio stream combiner (NULL = input-selector)", GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /** * GstPlayBin:text-stream-combiner * * Get or set the current text stream combiner. By default, an input-selector * is created and deleted as-needed. */ g_object_class_install_property (gobject_klass, PROP_TEXT_STREAM_COMBINER, g_param_spec_object ("text-stream-combiner", "Text stream combiner", "Current text stream combiner (NULL = input-selector)", GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /** * GstPlayBin: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)); /** * GstPlayBin:sample: * @playbin: a #GstPlayBin * * Get the currently rendered or prerolled sample in the video sink. * The #GstCaps in the sample will describe the format of the buffer. */ g_object_class_install_property (gobject_klass, PROP_SAMPLE, g_param_spec_boxed ("sample", "Sample", "The last sample (NULL = no video available)", GST_TYPE_SAMPLE, 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_uint64 ("connection-speed", "Connection Speed", "Network connection speed in kbps (0 = unknown)", 0, G_MAXUINT64 / 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)); /** * GstPlayBin: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. */ 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)); /** * GstPlayBin:ring-buffer-max-size * * The maximum size of the ring buffer in bytes. If set to 0, the ring * buffer is disabled. Default 0. */ 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)); /** * GstPlayBin::force-aspect-ratio: * * Requests the video sink to enforce the video display aspect ratio. */ g_object_class_install_property (gobject_klass, PROP_FORCE_ASPECT_RATIO, g_param_spec_boolean ("force-aspect-ratio", "Force Aspect Ratio", "When enabled, scaling will respect original aspect ratio", TRUE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /** * GstPlayBin::about-to-finish * @playbin: a #GstPlayBin * * 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. * * This signal is emitted from the context of a GStreamer streaming thread. */ 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, g_cclosure_marshal_generic, G_TYPE_NONE, 0, G_TYPE_NONE); /** * GstPlayBin::video-changed * @playbin: a #GstPlayBin * * 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. * * This signal is usually emitted from the context of a GStreamer streaming * thread. You can use gst_message_new_application() and * gst_element_post_message() to notify your application's main thread. */ /* FIXME 0.11: turn video-changed signal into message? */ 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, g_cclosure_marshal_generic, G_TYPE_NONE, 0, G_TYPE_NONE); /** * GstPlayBin::audio-changed * @playbin: a #GstPlayBin * * 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. * * This signal may be emitted from the context of a GStreamer streaming thread. * You can use gst_message_new_application() and gst_element_post_message() * to notify your application's main thread. */ /* FIXME 0.11: turn audio-changed signal into message? */ 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, g_cclosure_marshal_generic, G_TYPE_NONE, 0, G_TYPE_NONE); /** * GstPlayBin::text-changed * @playbin: a #GstPlayBin * * 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. * * This signal may be emitted from the context of a GStreamer streaming thread. * You can use gst_message_new_application() and gst_element_post_message() * to notify your application's main thread. */ /* FIXME 0.11: turn text-changed signal into message? */ 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, g_cclosure_marshal_generic, G_TYPE_NONE, 0, G_TYPE_NONE); /** * GstPlayBin::video-tags-changed * @playbin: a #GstPlayBin * @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. * * This signal may be emitted from the context of a GStreamer streaming thread. * You can use gst_message_new_application() and gst_element_post_message() * to notify your application's main thread. */ 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, g_cclosure_marshal_generic, G_TYPE_NONE, 1, G_TYPE_INT); /** * GstPlayBin::audio-tags-changed * @playbin: a #GstPlayBin * @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. * * This signal may be emitted from the context of a GStreamer streaming thread. * You can use gst_message_new_application() and gst_element_post_message() * to notify your application's main thread. */ 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, g_cclosure_marshal_generic, G_TYPE_NONE, 1, G_TYPE_INT); /** * GstPlayBin::text-tags-changed * @playbin: a #GstPlayBin * @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. * * This signal may be emitted from the context of a GStreamer streaming thread. * You can use gst_message_new_application() and gst_element_post_message() * to notify your application's main thread. */ 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, g_cclosure_marshal_generic, G_TYPE_NONE, 1, G_TYPE_INT); /** * GstPlayBin::source-setup: * @playbin: a #GstPlayBin * @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. * * This signal is usually emitted from the context of a GStreamer streaming * thread. */ gst_play_bin_signals[SIGNAL_SOURCE_SETUP] = g_signal_new ("source-setup", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, 0, NULL, NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 1, GST_TYPE_ELEMENT); /** * GstPlayBin::get-video-tags * @playbin: a #GstPlayBin * @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, g_cclosure_marshal_generic, GST_TYPE_TAG_LIST, 1, G_TYPE_INT); /** * GstPlayBin::get-audio-tags * @playbin: a #GstPlayBin * @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, g_cclosure_marshal_generic, GST_TYPE_TAG_LIST, 1, G_TYPE_INT); /** * GstPlayBin::get-text-tags * @playbin: a #GstPlayBin * @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, g_cclosure_marshal_generic, GST_TYPE_TAG_LIST, 1, G_TYPE_INT); /** * GstPlayBin::convert-sample * @playbin: a #GstPlayBin * @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 #GstSample of the current video frame converted to #caps. * The caps on the sample 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_SAMPLE] = g_signal_new ("convert-sample", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GstPlayBinClass, convert_sample), NULL, NULL, g_cclosure_marshal_generic, GST_TYPE_SAMPLE, 1, GST_TYPE_CAPS); /** * GstPlayBin::get-video-pad * @playbin: a #GstPlayBin * @stream: a video stream number * * Action signal to retrieve the stream-combiner 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, g_cclosure_marshal_generic, GST_TYPE_PAD, 1, G_TYPE_INT); /** * GstPlayBin::get-audio-pad * @playbin: a #GstPlayBin * @stream: an audio stream number * * Action signal to retrieve the stream-combiner 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, g_cclosure_marshal_generic, GST_TYPE_PAD, 1, G_TYPE_INT); /** * GstPlayBin::get-text-pad * @playbin: a #GstPlayBin * @stream: a text stream number * * Action signal to retrieve the stream-combiner 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, g_cclosure_marshal_generic, 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_sample = gst_play_bin_convert_sample; 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_static_metadata (gstelement_klass, "Player Bin 2", "Generic/Bin/Player", "Autoplug and play media from an uri", "Wim Taymans "); gstelement_klass->change_state = GST_DEBUG_FUNCPTR (gst_play_bin_change_state); gstelement_klass->query = GST_DEBUG_FUNCPTR (gst_play_bin_query); gstelement_klass->set_context = GST_DEBUG_FUNCPTR (gst_play_bin_set_context); gstbin_klass->handle_message = GST_DEBUG_FUNCPTR (gst_play_bin_handle_message); } static void init_group (GstPlayBin * playbin, GstSourceGroup * group) { /* 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 (); g_mutex_init (&group->lock); group->stream_changed_pending = FALSE; g_mutex_init (&group->stream_changed_pending_lock); /* init combiners. The combiner 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 accommodate a * NULL terminator (set when the memory is zeroed on allocation) */ group->combiner[PLAYBIN_STREAM_AUDIO].media_list[0] = "audio/"; group->combiner[PLAYBIN_STREAM_AUDIO].type = GST_PLAY_SINK_TYPE_AUDIO; group->combiner[PLAYBIN_STREAM_AUDIO].channels = group->audio_channels; group->combiner[PLAYBIN_STREAM_VIDEO].media_list[0] = "video/"; group->combiner[PLAYBIN_STREAM_VIDEO].media_list[1] = "image/"; group->combiner[PLAYBIN_STREAM_VIDEO].type = GST_PLAY_SINK_TYPE_VIDEO; group->combiner[PLAYBIN_STREAM_VIDEO].channels = group->video_channels; group->combiner[PLAYBIN_STREAM_TEXT].media_list[0] = "text/"; group->combiner[PLAYBIN_STREAM_TEXT].media_list[1] = "application/x-subtitle"; group->combiner[PLAYBIN_STREAM_TEXT].media_list[2] = "application/x-ssa"; group->combiner[PLAYBIN_STREAM_TEXT].media_list[3] = "application/x-ass"; group->combiner[PLAYBIN_STREAM_TEXT].media_list[4] = "subpicture/x-dvd"; group->combiner[PLAYBIN_STREAM_TEXT].media_list[5] = "subpicture/"; group->combiner[PLAYBIN_STREAM_TEXT].media_list[6] = "subtitle/"; group->combiner[PLAYBIN_STREAM_TEXT].get_media_caps = gst_subtitle_overlay_create_factory_caps; group->combiner[PLAYBIN_STREAM_TEXT].type = GST_PLAY_SINK_TYPE_TEXT; group->combiner[PLAYBIN_STREAM_TEXT].channels = group->text_channels; } static void free_group (GstPlayBin * playbin, GstSourceGroup * group) { 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_clear (&group->lock); if (group->audio_sink) gst_object_unref (group->audio_sink); group->audio_sink = NULL; if (group->video_sink) gst_object_unref (group->video_sink); group->video_sink = NULL; if (group->text_sink) gst_object_unref (group->text_sink); group->text_sink = NULL; group->stream_changed_pending = FALSE; g_mutex_clear (&group->stream_changed_pending_lock); g_slist_free (group->suburi_flushes_to_drop); group->suburi_flushes_to_drop = NULL; if (group->suburi_flushes_to_drop_lock.p) g_mutex_clear (&group->suburi_flushes_to_drop_lock); group->suburi_flushes_to_drop_lock.p = NULL; if (group->pending_buffering_msg) gst_message_unref (group->pending_buffering_msg); group->pending_buffering_msg = NULL; } static void notify_volume_cb (GObject * combiner, GParamSpec * pspec, GstPlayBin * playbin) { g_object_notify (G_OBJECT (playbin), "volume"); } static void notify_mute_cb (GObject * combiner, GParamSpec * pspec, GstPlayBin * playbin) { g_object_notify (G_OBJECT (playbin), "mute"); } static void colorbalance_value_changed_cb (GstColorBalance * balance, GstColorBalanceChannel * channel, gint value, GstPlayBin * playbin) { gst_color_balance_value_changed (GST_COLOR_BALANCE (playbin), channel, value); } static gint compare_factories_func (gconstpointer p1, gconstpointer p2) { GstPluginFeature *f1, *f2; gboolean is_sink1, is_sink2; gboolean is_parser1, is_parser2; f1 = (GstPluginFeature *) p1; f2 = (GstPluginFeature *) p2; is_sink1 = gst_element_factory_list_is_type (GST_ELEMENT_FACTORY_CAST (f1), GST_ELEMENT_FACTORY_TYPE_SINK); is_sink2 = gst_element_factory_list_is_type (GST_ELEMENT_FACTORY_CAST (f2), GST_ELEMENT_FACTORY_TYPE_SINK); is_parser1 = gst_element_factory_list_is_type (GST_ELEMENT_FACTORY_CAST (f1), GST_ELEMENT_FACTORY_TYPE_PARSER); is_parser2 = gst_element_factory_list_is_type (GST_ELEMENT_FACTORY_CAST (f2), GST_ELEMENT_FACTORY_TYPE_PARSER); /* First we want all sinks as we prefer a sink if it directly * supports the current caps */ if (is_sink1 && !is_sink2) return -1; else if (!is_sink1 && is_sink2) return 1; /* Then we want all parsers as we always want to plug parsers * before decoders */ if (is_parser1 && !is_parser2) return -1; else if (!is_parser1 && is_parser2) return 1; /* And if it's a both a parser or sink we first sort by rank * and then by factory name */ return gst_plugin_feature_rank_compare_func (p1, p2); } /* Must be called with elements lock! */ static void gst_play_bin_update_elements_list (GstPlayBin * playbin) { GList *res, *tmp; guint cookie; cookie = gst_registry_get_feature_list_cookie (gst_registry_get ()); if (!playbin->elements || playbin->elements_cookie != 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, compare_factories_func); } if (!playbin->aelements || playbin->elements_cookie != cookie) { if (playbin->aelements) g_sequence_free (playbin->aelements); playbin->aelements = avelements_create (playbin, TRUE); } if (!playbin->velements || playbin->elements_cookie != cookie) { if (playbin->velements) g_sequence_free (playbin->velements); playbin->velements = avelements_create (playbin, FALSE); } playbin->elements_cookie = cookie; } static void gst_play_bin_init (GstPlayBin * playbin) { g_rec_mutex_init (&playbin->lock); g_mutex_init (&playbin->dyn_lock); /* assume we can create an input-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 */ g_mutex_init (&playbin->elements_lock); /* add sink */ playbin->playsink = g_object_new (GST_TYPE_PLAY_SINK, "name", "playsink", "send-event-mode", 1, 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); g_signal_connect (playbin->playsink, "value-changed", G_CALLBACK (colorbalance_value_changed_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; playbin->force_aspect_ratio = TRUE; } 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); /* Setting states to NULL is safe here because playsink * will already be gone and none of these sinks will be * a child of playsink */ 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->video_stream_combiner) { gst_element_set_state (playbin->video_stream_combiner, GST_STATE_NULL); gst_object_unref (playbin->video_stream_combiner); } if (playbin->audio_stream_combiner) { gst_element_set_state (playbin->audio_stream_combiner, GST_STATE_NULL); gst_object_unref (playbin->audio_stream_combiner); } if (playbin->text_stream_combiner) { gst_element_set_state (playbin->text_stream_combiner, GST_STATE_NULL); gst_object_unref (playbin->text_stream_combiner); } if (playbin->elements) gst_plugin_feature_list_free (playbin->elements); if (playbin->aelements) g_sequence_free (playbin->aelements); if (playbin->velements) g_sequence_free (playbin->velements); g_list_free_full (playbin->contexts, (GDestroyNotify) gst_context_unref); g_rec_mutex_clear (&playbin->lock); g_mutex_clear (&playbin->dyn_lock); g_mutex_clear (&playbin->elements_lock); G_OBJECT_CLASS (parent_class)->finalize (object); } static gboolean gst_playbin_uri_is_valid (GstPlayBin * playbin, const gchar * uri) { const gchar *c; GST_LOG_OBJECT (playbin, "checking uri '%s'", uri); /* this just checks the protocol */ if (!gst_uri_is_valid (uri)) return FALSE; for (c = uri; *c != '\0'; ++c) { if (!g_ascii_isprint (*c)) goto invalid; if (*c == ' ') goto invalid; } return TRUE; invalid: { GST_WARNING_OBJECT (playbin, "uri '%s' not valid, character #%u", uri, (guint) ((guintptr) c - (guintptr) uri)); return FALSE; } } static void gst_play_bin_set_uri (GstPlayBin * playbin, const gchar * uri) { GstSourceGroup *group; if (uri == NULL) { g_warning ("cannot set NULL uri"); return; } if (!gst_playbin_uri_is_valid (playbin, uri)) { if (g_str_has_prefix (uri, "file:")) { GST_WARNING_OBJECT (playbin, "not entirely correct file URI '%s' - make " "sure to escape spaces and non-ASCII characters properly and specify " "an absolute path. Use gst_filename_to_uri() to convert filenames " "to URIs", uri); } else { /* GST_ERROR_OBJECT (playbin, "malformed URI '%s'", uri); */ } } 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, GstSourceGroup * group, gint type, gint stream) { GstTagList *result; GPtrArray *channels; GstPad *sinkpad; switch (type) { case PLAYBIN_STREAM_AUDIO: channels = group->audio_channels; break; case PLAYBIN_STREAM_VIDEO: channels = group->video_channels; break; case PLAYBIN_STREAM_TEXT: channels = group->text_channels; break; default: channels = NULL; break; } if (!channels || stream >= channels->len || !group->combiner[type].has_tags) 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, PLAYBIN_STREAM_VIDEO, 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, PLAYBIN_STREAM_AUDIO, 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, PLAYBIN_STREAM_TEXT, stream); GST_PLAY_BIN_UNLOCK (playbin); return result; } static GstSample * gst_play_bin_convert_sample (GstPlayBin * playbin, GstCaps * caps) { return gst_play_sink_convert_sample (playbin->playsink, caps); } /* Returns current stream number, or -1 if none has been selected yet */ static int get_current_stream_number (GstPlayBin * playbin, GstSourceCombine * combine, GPtrArray * channels) { /* Internal API cleanup would make this easier... */ int i; GstPad *pad, *current; GstObject *combiner = NULL; int ret = -1; if (!combine->has_active_pad) { GST_WARNING_OBJECT (playbin, "combiner doesn't have the \"active-pad\" property"); return ret; } for (i = 0; i < channels->len; i++) { pad = g_ptr_array_index (channels, i); if ((combiner = gst_pad_get_parent (pad))) { g_object_get (combiner, "active-pad", ¤t, NULL); gst_object_unref (combiner); if (pad == current) { gst_object_unref (current); ret = i; break; } if (current) gst_object_unref (current); } } return ret; } static gboolean gst_play_bin_send_custom_event (GstObject * combiner, const gchar * event_name) { GstPad *src; GstPad *peer; GstStructure *s; GstEvent *event; gboolean ret = FALSE; src = gst_element_get_static_pad (GST_ELEMENT_CAST (combiner), "src"); peer = gst_pad_get_peer (src); if (peer) { s = gst_structure_new_empty (event_name); event = gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM_OOB, s); gst_pad_send_event (peer, event); gst_object_unref (peer); ret = TRUE; } gst_object_unref (src); 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); GST_DEBUG_OBJECT (playbin, "Changing current video stream %d -> %d", playbin->current_video, stream); group = get_group (playbin); if (!group->combiner[PLAYBIN_STREAM_VIDEO].has_active_pad) goto no_active_pad; 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 *combiner; if ((combiner = gst_pad_get_parent (sinkpad))) { GstPad *old_sinkpad; g_object_get (combiner, "active-pad", &old_sinkpad, NULL); if (old_sinkpad != sinkpad) { if (gst_play_bin_send_custom_event (combiner, "playsink-custom-video-flush")) playbin->video_pending_flush_finish = TRUE; /* activate the selected pad */ g_object_set (combiner, "active-pad", sinkpad, NULL); } gst_object_unref (combiner); } gst_object_unref (sinkpad); } return TRUE; no_active_pad: { GST_PLAY_BIN_UNLOCK (playbin); GST_WARNING_OBJECT (playbin, "can't switch video, the stream combiner's sink pads don't have the \"active-pad\" property"); return FALSE; } 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); GST_DEBUG_OBJECT (playbin, "Changing current audio stream %d -> %d", playbin->current_audio, stream); group = get_group (playbin); if (!group->combiner[PLAYBIN_STREAM_AUDIO].has_active_pad) goto no_active_pad; 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 *combiner; if ((combiner = gst_pad_get_parent (sinkpad))) { GstPad *old_sinkpad; g_object_get (combiner, "active-pad", &old_sinkpad, NULL); if (old_sinkpad != sinkpad) { if (gst_play_bin_send_custom_event (combiner, "playsink-custom-audio-flush")) playbin->audio_pending_flush_finish = TRUE; /* activate the selected pad */ g_object_set (combiner, "active-pad", sinkpad, NULL); } gst_object_unref (combiner); } gst_object_unref (sinkpad); } return TRUE; no_active_pad: { GST_PLAY_BIN_UNLOCK (playbin); GST_WARNING_OBJECT (playbin, "can't switch audio, the stream combiner's sink pads don't have the \"active-pad\" property"); return FALSE; } no_channels: { GST_PLAY_BIN_UNLOCK (playbin); GST_DEBUG_OBJECT (playbin, "can't switch audio, we have no channels"); return FALSE; } } static void gst_play_bin_suburidecodebin_seek_to_start (GstSourceGroup * group) { GstElement *suburidecodebin = group->suburidecodebin; GstIterator *it = gst_element_iterate_src_pads (suburidecodebin); GstPad *sinkpad; GValue item = { 0, }; if (it && gst_iterator_next (it, &item) == GST_ITERATOR_OK && ((sinkpad = g_value_get_object (&item)) != NULL)) { GstEvent *event; guint32 seqnum; event = gst_event_new_seek (1.0, GST_FORMAT_BYTES, GST_SEEK_FLAG_FLUSH, GST_SEEK_TYPE_SET, 0, GST_SEEK_TYPE_NONE, -1); seqnum = gst_event_get_seqnum (event); /* store the seqnum to drop flushes from this seek later */ g_mutex_lock (&group->suburi_flushes_to_drop_lock); group->suburi_flushes_to_drop = g_slist_append (group->suburi_flushes_to_drop, GUINT_TO_POINTER (seqnum)); g_mutex_unlock (&group->suburi_flushes_to_drop_lock); if (!gst_pad_send_event (sinkpad, event)) { event = gst_event_new_seek (1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH, GST_SEEK_TYPE_SET, 0, GST_SEEK_TYPE_NONE, -1); gst_event_set_seqnum (event, seqnum); if (!gst_pad_send_event (sinkpad, event)) { GST_DEBUG_OBJECT (suburidecodebin, "Seeking to the beginning failed!"); g_mutex_lock (&group->suburi_flushes_to_drop_lock); group->suburi_flushes_to_drop = g_slist_remove (group->suburi_flushes_to_drop, GUINT_TO_POINTER (seqnum)); g_mutex_unlock (&group->suburi_flushes_to_drop_lock); } } g_value_unset (&item); } if (it) gst_iterator_free (it); } static GstPadProbeReturn block_serialized_data_cb (GstPad * pad, GstPadProbeInfo * info, gpointer user_data) { if (GST_IS_EVENT (info->data) && !GST_EVENT_IS_SERIALIZED (info->data)) { GST_DEBUG_OBJECT (pad, "Letting non-serialized event %s pass", GST_EVENT_TYPE_NAME (info->data)); return GST_PAD_PROBE_PASS; } return GST_PAD_PROBE_OK; } static void gst_play_bin_suburidecodebin_block (GstSourceGroup * group, GstElement * suburidecodebin, gboolean block) { GstIterator *it = gst_element_iterate_src_pads (suburidecodebin); gboolean done = FALSE; GValue item = { 0, }; GST_DEBUG_OBJECT (suburidecodebin, "Blocking suburidecodebin: %d", block); if (!it) return; while (!done) { GstPad *sinkpad; switch (gst_iterator_next (it, &item)) { case GST_ITERATOR_OK: sinkpad = g_value_get_object (&item); if (block) { group->block_id = gst_pad_add_probe (sinkpad, GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM, block_serialized_data_cb, NULL, NULL); } else if (group->block_id) { gst_pad_remove_probe (sinkpad, group->block_id); group->block_id = 0; } g_value_reset (&item); break; case GST_ITERATOR_DONE: done = TRUE; break; case GST_ITERATOR_RESYNC: gst_iterator_resync (it); break; case GST_ITERATOR_ERROR: done = TRUE; break; } } g_value_unset (&item); 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); GST_DEBUG_OBJECT (playbin, "Changing current text stream %d -> %d", playbin->current_text, stream); group = get_group (playbin); if (!group->combiner[PLAYBIN_STREAM_TEXT].has_active_pad) goto no_active_pad; 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 *combiner; if ((combiner = gst_pad_get_parent (sinkpad))) { GstPad *old_sinkpad; g_object_get (combiner, "active-pad", &old_sinkpad, NULL); if (old_sinkpad != sinkpad) { gboolean need_unblock, need_block, need_seek; GstPad *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, group->suburidecodebin, TRUE); if (gst_play_bin_send_custom_event (combiner, "playsink-custom-subtitle-flush")) playbin->text_pending_flush_finish = TRUE; /* activate the selected pad */ g_object_set (combiner, "active-pad", sinkpad, NULL); /* Unblock pads if necessary */ if (need_unblock) gst_play_bin_suburidecodebin_block (group, group->suburidecodebin, FALSE); /* seek to the beginning */ if (need_seek) gst_play_bin_suburidecodebin_seek_to_start (group); } gst_object_unref (combiner); if (old_sinkpad) gst_object_unref (old_sinkpad); } gst_object_unref (sinkpad); } return TRUE; no_active_pad: { GST_PLAY_BIN_UNLOCK (playbin); GST_WARNING_OBJECT (playbin, "can't switch text, the stream combiner's sink pads don't have the \"active-pad\" property"); return FALSE; } no_channels: { GST_PLAY_BIN_UNLOCK (playbin); return FALSE; } } static void gst_play_bin_set_sink (GstPlayBin * playbin, GstPlaySinkType type, const gchar * dbg, GstElement ** elem, GstElement * sink) { GST_INFO_OBJECT (playbin, "Setting %s sink to %" GST_PTR_FORMAT, dbg, sink); gst_play_sink_set_sink (playbin->playsink, type, sink); if (*elem) gst_object_unref (*elem); *elem = sink ? gst_object_ref (sink) : NULL; } static void gst_play_bin_set_stream_combiner (GstPlayBin * playbin, GstElement ** elem, const gchar * dbg, GstElement * combiner) { GST_INFO_OBJECT (playbin, "Setting %s stream combiner to %" GST_PTR_FORMAT, dbg, combiner); GST_PLAY_BIN_LOCK (playbin); if (*elem != combiner) { GstElement *old; old = *elem; if (combiner) gst_object_ref_sink (combiner); *elem = combiner; if (old) gst_object_unref (old); } GST_LOG_OBJECT (playbin, "%s stream combiner 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_FILTER: gst_play_sink_set_filter (playbin->playsink, GST_PLAY_SINK_TYPE_VIDEO, GST_ELEMENT (g_value_get_object (value))); break; case PROP_AUDIO_FILTER: gst_play_sink_set_filter (playbin->playsink, GST_PLAY_SINK_TYPE_AUDIO, GST_ELEMENT (g_value_get_object (value))); break; case PROP_VIDEO_SINK: gst_play_bin_set_sink (playbin, GST_PLAY_SINK_TYPE_VIDEO, "video", &playbin->video_sink, g_value_get_object (value)); break; case PROP_AUDIO_SINK: gst_play_bin_set_sink (playbin, GST_PLAY_SINK_TYPE_AUDIO, "audio", &playbin->audio_sink, 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, GST_PLAY_SINK_TYPE_TEXT, "text", &playbin->text_sink, g_value_get_object (value)); break; case PROP_VIDEO_STREAM_COMBINER: gst_play_bin_set_stream_combiner (playbin, &playbin->video_stream_combiner, "video", g_value_get_object (value)); break; case PROP_AUDIO_STREAM_COMBINER: gst_play_bin_set_stream_combiner (playbin, &playbin->audio_stream_combiner, "audio", g_value_get_object (value)); break; case PROP_TEXT_STREAM_COMBINER: gst_play_bin_set_stream_combiner (playbin, &playbin->text_stream_combiner, "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_uint64 (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; case PROP_FORCE_ASPECT_RATIO: g_object_set (playbin->playsink, "force-aspect-ratio", g_value_get_boolean (value), NULL); 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 GstElement * gst_play_bin_get_current_stream_combiner (GstPlayBin * playbin, GstElement ** elem, const gchar * dbg, int stream_type) { GstElement *combiner; GST_PLAY_BIN_LOCK (playbin); if ((combiner = playbin->curr_group->combiner[stream_type].combiner)) gst_object_ref (combiner); else if ((combiner = *elem)) gst_object_ref (combiner); GST_PLAY_BIN_UNLOCK (playbin); return combiner; } 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 = playbin->next_group; g_value_set_string (value, group->uri); GST_PLAY_BIN_UNLOCK (playbin); break; break; } case PROP_CURRENT_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 = playbin->next_group; g_value_set_string (value, group->suburi); GST_PLAY_BIN_UNLOCK (playbin); break; } case PROP_CURRENT_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_FILTER: g_value_take_object (value, gst_play_sink_get_filter (playbin->playsink, GST_PLAY_SINK_TYPE_VIDEO)); break; case PROP_AUDIO_FILTER: g_value_take_object (value, gst_play_sink_get_filter (playbin->playsink, GST_PLAY_SINK_TYPE_AUDIO)); 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_VIDEO_STREAM_COMBINER: g_value_take_object (value, gst_play_bin_get_current_stream_combiner (playbin, &playbin->video_stream_combiner, "video", PLAYBIN_STREAM_VIDEO)); break; case PROP_AUDIO_STREAM_COMBINER: g_value_take_object (value, gst_play_bin_get_current_stream_combiner (playbin, &playbin->audio_stream_combiner, "audio", PLAYBIN_STREAM_VIDEO)); break; case PROP_TEXT_STREAM_COMBINER: g_value_take_object (value, gst_play_bin_get_current_stream_combiner (playbin, &playbin->text_stream_combiner, "text", PLAYBIN_STREAM_VIDEO)); 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_SAMPLE: gst_value_take_sample (value, gst_play_sink_get_last_sample (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_uint64 (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; case PROP_FORCE_ASPECT_RATIO:{ gboolean v; g_object_get (playbin->playsink, "force-aspect-ratio", &v, NULL); g_value_set_boolean (value, v); 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); pending = group->pending || group->stream_changed_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_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 && ((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_STREAM_START) { GstSourceGroup *new_group = playbin->curr_group; GstMessage *buffering_msg = NULL; GST_SOURCE_GROUP_LOCK (new_group); new_group->stream_changed_pending = FALSE; if (new_group->pending_buffering_msg) { buffering_msg = new_group->pending_buffering_msg; new_group->pending_buffering_msg = NULL; } GST_SOURCE_GROUP_UNLOCK (new_group); GST_DEBUG_OBJECT (playbin, "Stream start from new group %p", new_group); if (buffering_msg) { GST_DEBUG_OBJECT (playbin, "Posting pending buffering message: %" GST_PTR_FORMAT, buffering_msg); GST_BIN_CLASS (parent_class)->handle_message (bin, buffering_msg); } } else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_BUFFERING) { GstSourceGroup *group = playbin->curr_group; gboolean pending; /* drop buffering messages from child queues while we are switching * groups (because the application set a new uri in about-to-finish) * if the playsink queue still has buffers to play */ GST_SOURCE_GROUP_LOCK (group); pending = group->stream_changed_pending; if (pending) { GST_DEBUG_OBJECT (playbin, "Storing buffering message from pending group " "%p %" GST_PTR_FORMAT, group, msg); gst_message_replace (&group->pending_buffering_msg, msg); gst_message_unref (msg); msg = NULL; } GST_SOURCE_GROUP_UNLOCK (group); } 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; GValue item = { 0, }; 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); REMOVE_SIGNAL (group->suburidecodebin, group->sub_autoplug_query_id); it = gst_element_iterate_src_pads (group->suburidecodebin); while (it && !done) { GstPad *p = NULL; GstIteratorResult res; res = gst_iterator_next (it, &item); switch (res) { case GST_ITERATOR_DONE: done = TRUE; break; case GST_ITERATOR_OK: p = g_value_get_object (&item); pad_removed_cb (NULL, p, group); g_value_reset (&item); break; case GST_ITERATOR_RESYNC: gst_iterator_resync (it); break; case GST_ITERATOR_ERROR: done = TRUE; break; } } g_value_unset (&item); 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 combiner_active_pad_changed (GObject * combiner, GParamSpec * pspec, GstPlayBin * playbin) { const gchar *property; GstSourceGroup *group; GstSourceCombine *combine = NULL; int i; GST_PLAY_BIN_LOCK (playbin); group = get_group (playbin); for (i = 0; i < PLAYBIN_STREAM_LAST; i++) { if (combiner == G_OBJECT (group->combiner[i].combiner)) { combine = &group->combiner[i]; } } /* We got a pad-change after our group got switched out; no need to notify */ if (!combine) { GST_PLAY_BIN_UNLOCK (playbin); return; } switch (combine->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, combine, group->video_channels); if (playbin->video_pending_flush_finish) { playbin->video_pending_flush_finish = FALSE; GST_PLAY_BIN_UNLOCK (playbin); gst_play_bin_send_custom_event (GST_OBJECT (combiner), "playsink-custom-video-flush-finish"); goto notify; } 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, combine, group->audio_channels); if (playbin->audio_pending_flush_finish) { playbin->audio_pending_flush_finish = FALSE; GST_PLAY_BIN_UNLOCK (playbin); gst_play_bin_send_custom_event (GST_OBJECT (combiner), "playsink-custom-audio-flush-finish"); goto notify; } break; case GST_PLAY_SINK_TYPE_TEXT: property = "current-text"; playbin->current_text = get_current_stream_number (playbin, combine, group->text_channels); if (playbin->text_pending_flush_finish) { playbin->text_pending_flush_finish = FALSE; GST_PLAY_BIN_UNLOCK (playbin); gst_play_bin_send_custom_event (GST_OBJECT (combiner), "playsink-custom-subtitle-flush-finish"); goto notify; } break; default: property = NULL; } GST_PLAY_BIN_UNLOCK (playbin); notify: if (property) g_object_notify (G_OBJECT (playbin), property); } static GstPadProbeReturn _uridecodebin_event_probe (GstPad * pad, GstPadProbeInfo * info, gpointer udata) { GstPadProbeReturn ret = GST_PAD_PROBE_OK; GstSourceGroup *group = udata; GstEvent *event = GST_PAD_PROBE_INFO_DATA (info); gboolean suburidecodebin = (GST_PAD_PARENT (pad) == group->suburidecodebin); if (suburidecodebin) { /* Drop flushes that we caused from the suburidecodebin */ switch (GST_EVENT_TYPE (event)) { case GST_EVENT_FLUSH_START: case GST_EVENT_FLUSH_STOP: { guint32 seqnum = gst_event_get_seqnum (event); GSList *item = g_slist_find (group->suburi_flushes_to_drop, GUINT_TO_POINTER (seqnum)); if (item) { if (GST_EVENT_TYPE (event) == GST_EVENT_FLUSH_STOP) { group->suburi_flushes_to_drop = g_slist_delete_link (group->suburi_flushes_to_drop, item); } } } default: break; } } switch (GST_EVENT_TYPE (event)) { case GST_EVENT_STREAM_START:{ guint group_id; GST_SOURCE_GROUP_LOCK (group); if (gst_event_parse_group_id (event, &group_id)) { if (group->have_group_id) { if (group->group_id != group_id) { event = gst_event_copy (event); gst_event_set_group_id (event, group->group_id); gst_event_replace ((GstEvent **) & info->data, event); gst_event_unref (event); } } else { group->group_id = group_id; group->have_group_id = TRUE; } } else { GST_FIXME_OBJECT (pad, "Consider implementing group-id handling on stream-start event"); if (!group->have_group_id) { group->group_id = gst_util_group_id_next (); group->have_group_id = TRUE; } event = gst_event_copy (event); gst_event_set_group_id (event, group->group_id); gst_event_replace ((GstEvent **) & info->data, event); gst_event_unref (event); } GST_SOURCE_GROUP_UNLOCK (group); break; } default: break; } return ret; } /* helper function to lookup stuff in lists */ static gboolean array_has_value (const gchar * values[], const gchar * value, gboolean exact) { gint i; for (i = 0; values[i]; i++) { if (exact && !strcmp (value, values[i])) return TRUE; if (!exact && 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 combiner 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; GstSourceCombine *combine = NULL; gint i, pass; gboolean changed = FALSE; GstElement *custom_combiner = NULL; gulong group_id_probe_handler; playbin = group->playbin; caps = gst_pad_get_current_caps (pad); if (!caps) caps = gst_pad_query_caps (pad, NULL); 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 combiner to use, try exact match first */ for (pass = 0; !combine && pass < 2; pass++) { for (i = 0; i < PLAYBIN_STREAM_LAST; i++) { if (array_has_value (group->combiner[i].media_list, name, pass == 0)) { combine = &group->combiner[i]; break; } else if (group->combiner[i].get_media_caps) { GstCaps *media_caps = group->combiner[i].get_media_caps (); if (media_caps && gst_caps_can_intersect (media_caps, caps)) { combine = &group->combiner[i]; gst_caps_unref (media_caps); break; } gst_caps_unref (media_caps); } } /* get custom stream combiner if there is one */ if (combine) { if (i == PLAYBIN_STREAM_AUDIO) { custom_combiner = playbin->audio_stream_combiner; } else if (i == PLAYBIN_STREAM_TEXT) { custom_combiner = playbin->text_stream_combiner; } else if (i == PLAYBIN_STREAM_VIDEO) { custom_combiner = playbin->video_stream_combiner; } } } /* no combiner found for the media type, don't bother linking it to a * combiner. This will leave the pad unlinked and thus ignored. */ if (combine == NULL) goto unknown_type; GST_SOURCE_GROUP_LOCK (group); if (combine->combiner == NULL && playbin->have_selector) { /* no combiner, create one */ GST_DEBUG_OBJECT (playbin, "creating new input selector"); if (custom_combiner) combine->combiner = custom_combiner; else combine->combiner = gst_element_factory_make ("input-selector", NULL); if (combine->combiner == NULL) { /* post the missing input-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 { /* find out which properties the stream combiner supports */ combine->has_active_pad = g_object_class_find_property (G_OBJECT_GET_CLASS (combine->combiner), "active-pad") != NULL; if (!custom_combiner) { /* sync-mode=1, use clock */ if (combine->type == GST_PLAY_SINK_TYPE_TEXT) g_object_set (combine->combiner, "sync-streams", TRUE, "sync-mode", 1, "cache-buffers", TRUE, NULL); else g_object_set (combine->combiner, "sync-streams", TRUE, NULL); } if (combine->has_active_pad) g_signal_connect (combine->combiner, "notify::active-pad", G_CALLBACK (combiner_active_pad_changed), playbin); GST_DEBUG_OBJECT (playbin, "adding new stream combiner %p", combine->combiner); gst_element_set_state (combine->combiner, GST_STATE_PAUSED); gst_bin_add (GST_BIN_CAST (playbin), combine->combiner); } } if (combine->srcpad == NULL) { if (combine->combiner) { /* save source pad of the combiner */ combine->srcpad = gst_element_get_static_pad (combine->combiner, "src"); } else { /* no combiner, use the pad as the source pad then */ combine->srcpad = gst_object_ref (pad); } /* block the combiner srcpad. It's possible that multiple decodebins start * pushing data into the combiners 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, combine->srcpad); combine->block_id = gst_pad_add_probe (combine->srcpad, GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM, block_serialized_data_cb, NULL, NULL); } /* get sinkpad for the new stream */ if (combine->combiner) { if ((sinkpad = gst_element_get_request_pad (combine->combiner, "sink_%u"))) { GST_DEBUG_OBJECT (playbin, "got pad %s:%s from combiner", GST_DEBUG_PAD_NAME (sinkpad)); /* find out which properties the sink pad supports */ combine->has_always_ok = g_object_class_find_property (G_OBJECT_GET_CLASS (sinkpad), "always-ok") != NULL; combine->has_tags = g_object_class_find_property (G_OBJECT_GET_CLASS (sinkpad), "tags") != NULL; /* store the combiner for the pad */ g_object_set_data (G_OBJECT (sinkpad), "playbin.combine", combine); if (combine->has_tags) { gulong notify_tags_handler = 0; NotifyTagsData *ntdata; /* connect to the notify::tags signal for our * own *-tags-changed signals */ ntdata = g_new0 (NotifyTagsData, 1); ntdata->playbin = playbin; ntdata->stream_id = combine->channels->len; ntdata->type = combine->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), "playbin.notify_tags_handler", (gpointer) (guintptr) notify_tags_handler); } /* store the pad in the array */ GST_DEBUG_OBJECT (playbin, "pad %p added to array", sinkpad); g_ptr_array_add (combine->channels, sinkpad); res = gst_pad_link (pad, sinkpad); if (GST_PAD_LINK_FAILED (res)) goto link_failed; /* store combiner pad so we can release it */ g_object_set_data (G_OBJECT (pad), "playbin.sinkpad", sinkpad); changed = TRUE; GST_DEBUG_OBJECT (playbin, "linked pad %s:%s to combiner %p", GST_DEBUG_PAD_NAME (pad), combine->combiner); } else { goto request_pad_failed; } } else { /* no combiner, don't configure anything, we'll link the new pad directly to * the sink. */ changed = FALSE; sinkpad = NULL; /* store the combiner for the pad */ g_object_set_data (G_OBJECT (pad), "playbin.combine", combine); } GST_SOURCE_GROUP_UNLOCK (group); group_id_probe_handler = gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM, _uridecodebin_event_probe, group, NULL); g_object_set_data (G_OBJECT (pad), "playbin.event_probe_id", (gpointer) group_id_probe_handler); if (changed) { int signal; switch (combine->type) { case GST_PLAY_SINK_TYPE_VIDEO: case GST_PLAY_SINK_TYPE_VIDEO_RAW: signal = SIGNAL_VIDEO_CHANGED; break; case GST_PLAY_SINK_TYPE_AUDIO: case GST_PLAY_SINK_TYPE_AUDIO_RAW: signal = SIGNAL_AUDIO_CHANGED; break; case GST_PLAY_SINK_TYPE_TEXT: signal = SIGNAL_TEXT_CHANGED; break; default: signal = -1; } if (signal >= 0) { /* 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 decodebin's multiqueue. * For pads from suburidecodebin OK should always be returned, otherwise * it will most likely stop. */ if (combine->has_always_ok) { gboolean always_ok = (decodebin == group->suburidecodebin); g_object_set (sinkpad, "always-ok", always_ok, NULL); } 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 combiner, reason %d", GST_DEBUG_PAD_NAME (pad), res); GST_SOURCE_GROUP_UNLOCK (group); goto done; } request_pad_failed: GST_ELEMENT_ERROR (playbin, CORE, PAD, ("Internal playbin error."), ("Failed to get request pad from combiner %p.", combine->combiner)); GST_SOURCE_GROUP_UNLOCK (group); goto done; } /* called when a pad is removed from the uridecodebin. We unlink the pad from * the combiner. This will make the combiner select a new pad. */ static void pad_removed_cb (GstElement * decodebin, GstPad * pad, GstSourceGroup * group) { GstPlayBin *playbin; GstPad *peer; GstElement *combiner; GstSourceCombine *combine; int signal = -1; gulong group_id_probe_handler; 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); if ((group_id_probe_handler = (guintptr) g_object_get_data (G_OBJECT (pad), "playbin.event_probe_id"))) { gst_pad_remove_probe (pad, group_id_probe_handler); g_object_set_data (G_OBJECT (pad), "playbin.event_probe_id", 0); } if ((combine = g_object_get_data (G_OBJECT (pad), "playbin.combine"))) { g_assert (combine->combiner == NULL); g_assert (combine->srcpad == pad); gst_object_unref (pad); combine->srcpad = NULL; goto exit; } /* get the combiner sinkpad */ if (!(peer = g_object_get_data (G_OBJECT (pad), "playbin.sinkpad"))) goto not_linked; /* unlink the pad now (can fail, the pad is unlinked before it's removed) */ gst_pad_unlink (pad, peer); /* get combiner */ combiner = GST_ELEMENT_CAST (gst_pad_get_parent (peer)); g_assert (combiner != NULL); if ((combine = g_object_get_data (G_OBJECT (peer), "playbin.combine"))) { if (combine->has_tags) { gulong notify_tags_handler; notify_tags_handler = (guintptr) g_object_get_data (G_OBJECT (peer), "playbin.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), "playbin.notify_tags_handler", NULL); } /* remove the pad from the array */ g_ptr_array_remove (combine->channels, peer); GST_DEBUG_OBJECT (playbin, "pad %p removed from array", peer); /* get the correct type-changed signal */ switch (combine->type) { case GST_PLAY_SINK_TYPE_VIDEO: case GST_PLAY_SINK_TYPE_VIDEO_RAW: signal = SIGNAL_VIDEO_CHANGED; break; case GST_PLAY_SINK_TYPE_AUDIO: case GST_PLAY_SINK_TYPE_AUDIO_RAW: signal = SIGNAL_AUDIO_CHANGED; break; case GST_PLAY_SINK_TYPE_TEXT: signal = SIGNAL_TEXT_CHANGED; break; default: signal = -1; } if (!combine->channels->len && combine->combiner) { GST_DEBUG_OBJECT (playbin, "all combiner sinkpads removed"); GST_DEBUG_OBJECT (playbin, "removing combiner %p", combine->combiner); gst_object_unref (combine->srcpad); combine->srcpad = NULL; gst_element_set_state (combine->combiner, GST_STATE_NULL); gst_bin_remove (GST_BIN_CAST (playbin), combine->combiner); combine->combiner = NULL; } } /* release the pad to the combiner, this will make the combiner choose a new * pad. */ gst_element_release_request_pad (combiner, peer); gst_object_unref (peer); gst_object_unref (combiner); exit: GST_SOURCE_GROUP_UNLOCK (group); if (signal >= 0) g_signal_emit (G_OBJECT (playbin), gst_play_bin_signals[signal], 0, NULL); return; /* ERRORS */ not_linked: { GST_DEBUG_OBJECT (playbin, "pad not linked"); goto exit; } } /* 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 combiners 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 < PLAYBIN_STREAM_LAST; i++) { GstSourceCombine *combine = &group->combiner[i]; /* check if the specific media type was detected and thus has a combiner * 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 (combine->srcpad && combine->sinkpad == NULL) { GST_DEBUG_OBJECT (playbin, "requesting new sink pad %d", combine->type); combine->sinkpad = gst_play_sink_request_pad (playbin->playsink, combine->type); gst_object_ref (combine->sinkpad); } else if (combine->srcpad && combine->sinkpad) { GST_DEBUG_OBJECT (playbin, "refreshing new sink pad %d", combine->type); gst_play_sink_refresh_pad (playbin->playsink, combine->sinkpad, combine->type); } else if (combine->sinkpad && combine->srcpad == NULL) { GST_DEBUG_OBJECT (playbin, "releasing sink pad %d", combine->type); gst_play_sink_release_pad (playbin->playsink, combine->sinkpad); gst_object_unref (combine->sinkpad); combine->sinkpad = NULL; } if (combine->sinkpad && combine->srcpad && !gst_pad_is_linked (combine->srcpad)) { res = gst_pad_link (combine->srcpad, combine->sinkpad); GST_DEBUG_OBJECT (playbin, "linked type %s, result: %d", combine->media_list[0], res); if (res != GST_PAD_LINK_OK) { GST_ELEMENT_ERROR (playbin, CORE, PAD, ("Internal playbin error."), ("Failed to link combiner 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); if (group->audio_sink) { 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); } if (group->video_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); } if (group->text_sink) { GST_INFO_OBJECT (playbin, "setting custom text sink %" GST_PTR_FORMAT, group->text_sink); gst_play_sink_set_sink (playbin->playsink, GST_PLAY_SINK_TYPE_TEXT, group->text_sink); } GST_SOURCE_GROUP_UNLOCK (group); /* signal the other decodebins that they can continue now. */ GST_SOURCE_GROUP_LOCK (group); /* unblock all combiners */ for (i = 0; i < PLAYBIN_STREAM_LAST; i++) { GstSourceCombine *combine = &group->combiner[i]; if (combine->srcpad) { GST_DEBUG_OBJECT (playbin, "unblocking %" GST_PTR_FORMAT, combine->srcpad); if (combine->block_id) { gst_pad_remove_probe (combine->srcpad, combine->block_id); combine->block_id = 0; } } } GST_SOURCE_GROUP_UNLOCK (group); gst_play_sink_reconfigure (playbin->playsink); } 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 combiner. * Then we unblock the combiners so that they stop with a WRONG_STATE * instead of a NOT_LINKED error. */ GST_SOURCE_GROUP_LOCK (group); for (i = 0; i < PLAYBIN_STREAM_LAST; i++) { GstSourceCombine *combine = &group->combiner[i]; if (combine->srcpad) { if (combine->sinkpad == NULL) { GST_DEBUG_OBJECT (playbin, "requesting new flushing sink pad"); combine->sinkpad = gst_play_sink_request_pad (playbin->playsink, GST_PLAY_SINK_TYPE_FLUSHING); gst_object_ref (combine->sinkpad); res = gst_pad_link (combine->srcpad, combine->sinkpad); GST_DEBUG_OBJECT (playbin, "linked flushing, result: %d", res); } GST_DEBUG_OBJECT (playbin, "unblocking %" GST_PTR_FORMAT, combine->srcpad); if (combine->block_id) { gst_pad_remove_probe (combine->srcpad, combine->block_id); combine->block_id = 0; } } } 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); } /* Like gst_element_factory_can_sink_any_caps() but doesn't * allow ANY caps on the sinkpad template */ static gboolean _factory_can_sink_caps (GstElementFactory * factory, GstCaps * caps) { const GList *templs; templs = gst_element_factory_get_static_pad_templates (factory); while (templs) { GstStaticPadTemplate *templ = (GstStaticPadTemplate *) templs->data; if (templ->direction == GST_PAD_SINK) { GstCaps *templcaps = gst_static_caps_get (&templ->static_caps); if (!gst_caps_is_any (templcaps) && gst_caps_is_subset (caps, templcaps)) { gst_caps_unref (templcaps); return TRUE; } gst_caps_unref (templcaps); } templs = g_list_next (templs); } return FALSE; } static void avelements_free (gpointer avelement) { GstAVElement *elm = (GstAVElement *) avelement; if (elm->dec) gst_object_unref (elm->dec); if (elm->sink) gst_object_unref (elm->sink); g_slice_free (GstAVElement, elm); } static gint avelement_compare_decoder (gconstpointer p1, gconstpointer p2, gpointer user_data) { GstAVElement *v1, *v2; v1 = (GstAVElement *) p1; v2 = (GstAVElement *) p2; return strcmp (GST_OBJECT_NAME (v1->dec), GST_OBJECT_NAME (v2->dec)); } static gint avelement_lookup_decoder (gconstpointer p1, gconstpointer p2, gpointer user_data) { GstAVElement *v1; GstElementFactory *f2; v1 = (GstAVElement *) p1; f2 = (GstElementFactory *) p2; return strcmp (GST_OBJECT_NAME (v1->dec), GST_OBJECT_NAME (f2)); } static gint avelement_compare (gconstpointer p1, gconstpointer p2) { GstAVElement *v1, *v2; GstPluginFeature *fd1, *fd2, *fs1, *fs2; gint64 diff, v1_rank, v2_rank; v1 = (GstAVElement *) p1; v2 = (GstAVElement *) p2; fd1 = (GstPluginFeature *) v1->dec; fd2 = (GstPluginFeature *) v2->dec; /* If both have a sink, we also compare their ranks */ if (v1->sink && v2->sink) { fs1 = (GstPluginFeature *) v1->sink; fs2 = (GstPluginFeature *) v2->sink; v1_rank = gst_plugin_feature_get_rank (fd1) * gst_plugin_feature_get_rank (fs1); v2_rank = gst_plugin_feature_get_rank (fd2) * gst_plugin_feature_get_rank (fs2); } else { v1_rank = gst_plugin_feature_get_rank (fd1); v2_rank = gst_plugin_feature_get_rank (fd2); fs1 = fs2 = NULL; } /* comparison based on the rank */ diff = v2_rank - v1_rank; if (diff < 0) return -1; else if (diff > 0) return 1; /* comparison based on number of common caps features */ diff = v2->n_comm_cf - v1->n_comm_cf; if (diff != 0) return diff; if (fs1 && fs2) { /* comparison based on the name of sink elements */ diff = strcmp (GST_OBJECT_NAME (fs1), GST_OBJECT_NAME (fs2)); if (diff != 0) return diff; } /* comparison based on the name of decoder elements */ return strcmp (GST_OBJECT_NAME (fd1), GST_OBJECT_NAME (fd2)); } /* unref the caps after usage */ static GstCaps * get_template_caps (GstElementFactory * factory, GstPadDirection direction) { const GList *templates; GstStaticPadTemplate *templ = NULL; GList *walk; templates = gst_element_factory_get_static_pad_templates (factory); for (walk = (GList *) templates; walk; walk = g_list_next (walk)) { templ = walk->data; if (templ->direction == direction) break; } if (templ) return gst_static_caps_get (&templ->static_caps); else return NULL; } static gboolean is_included (GList * list, GstCapsFeatures * cf) { for (; list; list = list->next) { if (gst_caps_features_is_equal ((GstCapsFeatures *) list->data, cf)) return TRUE; } return FALSE; } /* compute the number of common caps features */ static guint get_n_common_capsfeatures (GstPlayBin * playbin, GstElementFactory * dec, GstElementFactory * sink, gboolean isaudioelement) { GstCaps *d_tmpl_caps, *s_tmpl_caps; GstCapsFeatures *d_features, *s_features; GstStructure *d_struct, *s_struct; GList *cf_list = NULL; guint d_caps_size, s_caps_size; guint i, j, n_common_cf = 0; GstCaps *raw_caps = (isaudioelement) ? gst_static_caps_get (&raw_audio_caps) : gst_static_caps_get (&raw_video_caps); GstStructure *raw_struct = gst_caps_get_structure (raw_caps, 0); GstPlayFlags flags = gst_play_bin_get_flags (playbin); gboolean native_raw = (isaudioelement ? ! !(flags & GST_PLAY_FLAG_NATIVE_AUDIO) : ! !(flags & GST_PLAY_FLAG_NATIVE_VIDEO)); d_tmpl_caps = get_template_caps (dec, GST_PAD_SRC); s_tmpl_caps = get_template_caps (sink, GST_PAD_SINK); if (!d_tmpl_caps || !s_tmpl_caps) { GST_ERROR ("Failed to get template caps from decoder or sink"); return 0; } d_caps_size = gst_caps_get_size (d_tmpl_caps); s_caps_size = gst_caps_get_size (s_tmpl_caps); for (i = 0; i < d_caps_size; i++) { d_features = gst_caps_get_features ((const GstCaps *) d_tmpl_caps, i); d_struct = gst_caps_get_structure ((const GstCaps *) d_tmpl_caps, i); for (j = 0; j < s_caps_size; j++) { s_features = gst_caps_get_features ((const GstCaps *) s_tmpl_caps, j); s_struct = gst_caps_get_structure ((const GstCaps *) s_tmpl_caps, j); /* A common caps feature is given if the caps features are equal * and the structures can intersect. If the NATIVE_AUDIO/NATIVE_VIDEO * flags are not set we also allow if both structures are raw caps with * system memory caps features, because in that case we have converters in * place. */ if (gst_caps_features_is_equal (d_features, s_features) && (gst_structure_can_intersect (d_struct, s_struct) || (!native_raw && gst_caps_features_is_equal (d_features, GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY) && gst_structure_can_intersect (raw_struct, d_struct) && gst_structure_can_intersect (raw_struct, s_struct))) && !is_included (cf_list, s_features)) { cf_list = g_list_prepend (cf_list, s_features); n_common_cf++; } } } if (cf_list) g_list_free (cf_list); gst_caps_unref (d_tmpl_caps); gst_caps_unref (s_tmpl_caps); return n_common_cf; } static GSequence * avelements_create (GstPlayBin * playbin, gboolean isaudioelement) { GstElementFactory *d_factory, *s_factory; GList *dec_list, *sink_list, *dl, *sl; GSequence *ave_seq = NULL; GstAVElement *ave; guint n_common_cf = 0; if (isaudioelement) { sink_list = gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_SINK | GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO, GST_RANK_MARGINAL); dec_list = gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_DECODER | GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO, GST_RANK_MARGINAL); } else { sink_list = gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_SINK | GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO | GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE, GST_RANK_MARGINAL); dec_list = gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_DECODER | GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO | GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE, GST_RANK_MARGINAL); } /* create a list of audio/video elements. Each element in the list * is holding an audio/video decoder and an audio/video sink in which * the decoders srcpad template caps and sink element's sinkpad template * caps are compatible */ dl = dec_list; sl = sink_list; ave_seq = g_sequence_new ((GDestroyNotify) avelements_free); for (; dl; dl = dl->next) { d_factory = (GstElementFactory *) dl->data; for (; sl; sl = sl->next) { s_factory = (GstElementFactory *) sl->data; n_common_cf = get_n_common_capsfeatures (playbin, d_factory, s_factory, isaudioelement); if (n_common_cf < 1) continue; ave = g_slice_new (GstAVElement); ave->dec = gst_object_ref (d_factory); ave->sink = gst_object_ref (s_factory); ave->n_comm_cf = n_common_cf; g_sequence_append (ave_seq, ave); } sl = sink_list; } g_sequence_sort (ave_seq, (GCompareDataFunc) avelement_compare_decoder, NULL); gst_plugin_feature_list_free (dec_list); gst_plugin_feature_list_free (sink_list); return ave_seq; } static gboolean avelement_iter_is_equal (GSequenceIter * iter, GstElementFactory * factory) { GstAVElement *ave; if (!iter) return FALSE; ave = g_sequence_get (iter); if (!ave) return FALSE; return strcmp (GST_OBJECT_NAME (ave->dec), GST_OBJECT_NAME (factory)) == 0; } static GList * create_decoders_list (GList * factory_list, GSequence * avelements) { GList *dec_list = NULL, *tmp; GList *ave_list = NULL; GList *ave_free_list = NULL; GstAVElement *ave, *best_ave; g_return_val_if_fail (factory_list != NULL, NULL); g_return_val_if_fail (avelements != NULL, NULL); for (tmp = factory_list; tmp; tmp = tmp->next) { GstElementFactory *factory = (GstElementFactory *) tmp->data; /* if there are parsers or sink elements, add them first */ if (gst_element_factory_list_is_type (factory, GST_ELEMENT_FACTORY_TYPE_PARSER) || gst_element_factory_list_is_type (factory, GST_ELEMENT_FACTORY_TYPE_SINK)) { dec_list = g_list_prepend (dec_list, gst_object_ref (factory)); } else { GSequenceIter *seq_iter; seq_iter = g_sequence_lookup (avelements, factory, (GCompareDataFunc) avelement_lookup_decoder, NULL); if (!seq_iter) { GstAVElement *ave = g_slice_new0 (GstAVElement); ave->dec = factory; ave->sink = NULL; /* There's at least raw */ ave->n_comm_cf = 1; ave_list = g_list_prepend (ave_list, ave); /* We need to free these later */ ave_free_list = g_list_prepend (ave_free_list, ave); continue; } /* Go to first iter with that decoder */ do { GSequenceIter *tmp_seq_iter; tmp_seq_iter = g_sequence_iter_prev (seq_iter); if (!avelement_iter_is_equal (tmp_seq_iter, factory)) break; seq_iter = tmp_seq_iter; } while (!g_sequence_iter_is_begin (seq_iter)); /* Get the best ranked GstAVElement for that factory */ best_ave = NULL; while (!g_sequence_iter_is_end (seq_iter) && avelement_iter_is_equal (seq_iter, factory)) { ave = g_sequence_get (seq_iter); if (!best_ave || avelement_compare (ave, best_ave) < 0) best_ave = ave; seq_iter = g_sequence_iter_next (seq_iter); } ave_list = g_list_prepend (ave_list, best_ave); } } /* Sort all GstAVElements by their relative ranks and insert * into the decoders list */ ave_list = g_list_sort (ave_list, (GCompareFunc) avelement_compare); for (tmp = ave_list; tmp; tmp = tmp->next) { ave = (GstAVElement *) tmp->data; dec_list = g_list_prepend (dec_list, gst_object_ref (ave->dec)); } g_list_free (ave_list); gst_plugin_feature_list_free (factory_list); for (tmp = ave_free_list; tmp; tmp = tmp->next) g_slice_free (GstAVElement, tmp->data); g_list_free (ave_free_list); dec_list = g_list_reverse (dec_list); return dec_list; } /* 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 *factory_list, *tmp; GValueArray *result; gboolean unref_caps = FALSE; gboolean isaudiodeclist = FALSE; gboolean isvideodeclist = FALSE; if (!caps) { caps = gst_caps_new_any (); unref_caps = TRUE; } 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); factory_list = gst_element_factory_list_filter (playbin->elements, caps, GST_PAD_SINK, gst_caps_is_fixed (caps)); g_mutex_unlock (&playbin->elements_lock); GST_DEBUG_OBJECT (playbin, "found factories %p", factory_list); GST_PLUGIN_FEATURE_LIST_DEBUG (factory_list); /* check whether the caps are asking for a list of audio/video decoders */ tmp = factory_list; if (!gst_caps_is_any (caps)) { for (; tmp; tmp = tmp->next) { GstElementFactory *factory = (GstElementFactory *) tmp->data; isvideodeclist = gst_element_factory_list_is_type (factory, GST_ELEMENT_FACTORY_TYPE_DECODER | GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO | GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE); isaudiodeclist = gst_element_factory_list_is_type (factory, GST_ELEMENT_FACTORY_TYPE_DECODER | GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO); if (isaudiodeclist || isvideodeclist) break; } } if (isaudiodeclist || isvideodeclist) { GSequence **ave_list; if (isaudiodeclist) ave_list = &playbin->aelements; else ave_list = &playbin->velements; g_mutex_lock (&playbin->elements_lock); /* sort factory_list based on the GstAVElement list priority */ factory_list = create_decoders_list (factory_list, *ave_list); g_mutex_unlock (&playbin->elements_lock); } /* 2 additional elements for the already set audio/video sinks */ result = g_value_array_new (g_list_length (factory_list) + 2); /* Check if we already have an audio/video sink and if this is the case * put it as the first element of the array */ if (group->audio_sink) { GstElementFactory *factory = gst_element_get_factory (group->audio_sink); if (factory && _factory_can_sink_caps (factory, caps)) { GValue val = { 0, }; g_value_init (&val, G_TYPE_OBJECT); g_value_set_object (&val, factory); result = g_value_array_append (result, &val); g_value_unset (&val); } } if (group->video_sink) { GstElementFactory *factory = gst_element_get_factory (group->video_sink); if (factory && _factory_can_sink_caps (factory, caps)) { GValue val = { 0, }; g_value_init (&val, G_TYPE_OBJECT); g_value_set_object (&val, factory); result = g_value_array_append (result, &val); g_value_unset (&val); } } for (tmp = factory_list; tmp; tmp = tmp->next) { GstElementFactory *factory = GST_ELEMENT_FACTORY_CAST (tmp->data); GValue val = { 0, }; if (group->audio_sink && gst_element_factory_list_is_type (factory, GST_ELEMENT_FACTORY_TYPE_SINK | GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO)) { continue; } if (group->video_sink && gst_element_factory_list_is_type (factory, GST_ELEMENT_FACTORY_TYPE_SINK | GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO | GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE)) { continue; } 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 (factory_list); if (unref_caps) gst_caps_unref (caps); return result; } static void gst_play_bin_set_context (GstElement * element, GstContext * context) { GstPlayBin *playbin = GST_PLAY_BIN (element); /* Proxy contexts to the sinks, they might not be in playsink yet */ GST_PLAY_BIN_LOCK (playbin); if (playbin->audio_sink) gst_element_set_context (playbin->audio_sink, context); if (playbin->video_sink) gst_element_set_context (playbin->video_sink, context); if (playbin->text_sink) gst_element_set_context (playbin->text_sink, context); GST_SOURCE_GROUP_LOCK (playbin->curr_group); if (playbin->curr_group->audio_sink) gst_element_set_context (playbin->curr_group->audio_sink, context); if (playbin->curr_group->video_sink) gst_element_set_context (playbin->curr_group->video_sink, context); if (playbin->curr_group->text_sink) gst_element_set_context (playbin->curr_group->text_sink, context); GST_SOURCE_GROUP_UNLOCK (playbin->curr_group); GST_PLAY_BIN_UNLOCK (playbin); GST_ELEMENT_CLASS (parent_class)->set_context (element, context); } /* Pass sink messages to the application, e.g. NEED_CONTEXT messages */ static void gst_play_bin_update_context (GstPlayBin * playbin, GstContext * context) { GList *l; const gchar *context_type; GST_OBJECT_LOCK (playbin); context_type = gst_context_get_context_type (context); for (l = playbin->contexts; l; l = l->next) { GstContext *tmp = l->data; const gchar *tmp_type = gst_context_get_context_type (tmp); /* Always store newest context but never replace * a persistent one by a non-persistent one */ if (strcmp (context_type, tmp_type) == 0 && (gst_context_is_persistent (context) || !gst_context_is_persistent (tmp))) { gst_context_replace ((GstContext **) & l->data, context); break; } } /* Not found? Add */ if (l == NULL) playbin->contexts = g_list_prepend (playbin->contexts, gst_context_ref (context)); GST_OBJECT_UNLOCK (playbin); } static GstBusSyncReply activate_sink_bus_handler (GstBus * bus, GstMessage * msg, GstPlayBin * playbin) { if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ERROR) { /* Only proxy errors from a fixed sink. If that fails we can just error out * early as stuff will fail later anyway */ if (playbin->audio_sink && gst_object_has_ancestor (GST_MESSAGE_SRC (msg), GST_OBJECT_CAST (playbin->audio_sink))) gst_element_post_message (GST_ELEMENT_CAST (playbin), msg); else if (playbin->video_sink && gst_object_has_ancestor (GST_MESSAGE_SRC (msg), GST_OBJECT_CAST (playbin->video_sink))) gst_element_post_message (GST_ELEMENT_CAST (playbin), msg); else if (playbin->text_sink && gst_object_has_ancestor (GST_MESSAGE_SRC (msg), GST_OBJECT_CAST (playbin->text_sink))) gst_element_post_message (GST_ELEMENT_CAST (playbin), msg); else gst_message_unref (msg); } else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_NEED_CONTEXT) { const gchar *context_type; GList *l; gst_message_parse_context_type (msg, &context_type); GST_OBJECT_LOCK (playbin); for (l = playbin->contexts; l; l = l->next) { GstContext *tmp = l->data; const gchar *tmp_type = gst_context_get_context_type (tmp); if (strcmp (context_type, tmp_type) == 0) { gst_element_set_context (GST_ELEMENT (GST_MESSAGE_SRC (msg)), l->data); break; } } GST_OBJECT_UNLOCK (playbin); /* Forward if we couldn't answer the message */ if (l == NULL) { gst_element_post_message (GST_ELEMENT_CAST (playbin), msg); } else { gst_message_unref (msg); } } else if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_HAVE_CONTEXT) { GstContext *context; gst_message_parse_have_context (msg, &context); gst_play_bin_update_context (playbin, context); gst_context_unref (context); gst_element_post_message (GST_ELEMENT_CAST (playbin), msg); } else { gst_element_post_message (GST_ELEMENT_CAST (playbin), msg); } /* Doesn't really matter, nothing is using this bus */ return GST_BUS_DROP; } static gboolean activate_sink (GstPlayBin * playbin, GstElement * sink, gboolean * activated) { GstState state; GstBus *bus = NULL; GstStateChangeReturn sret; gboolean ret = FALSE; if (activated) *activated = FALSE; GST_OBJECT_LOCK (sink); state = GST_STATE (sink); GST_OBJECT_UNLOCK (sink); if (state >= GST_STATE_READY) { ret = TRUE; goto done; } if (!GST_OBJECT_PARENT (sink)) { bus = gst_bus_new (); gst_bus_set_sync_handler (bus, (GstBusSyncHandler) activate_sink_bus_handler, playbin, NULL); gst_element_set_bus (sink, bus); } sret = gst_element_set_state (sink, GST_STATE_READY); if (sret == GST_STATE_CHANGE_FAILURE) goto done; if (activated) *activated = TRUE; ret = TRUE; done: if (bus) { gst_element_set_bus (sink, NULL); gst_object_unref (bus); } return ret; } /* 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 * explicitly 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_SOURCE_GROUP_LOCK (group); if ((sink = group->text_sink)) sinkpad = gst_element_get_static_pad (sink, "sink"); if (sinkpad) { GstCaps *sinkcaps; sinkcaps = gst_pad_query_caps (sinkpad, NULL); if (!gst_caps_is_any (sinkcaps)) ret = !gst_pad_query_accept_caps (sinkpad, caps); gst_caps_unref (sinkcaps); gst_object_unref (sinkpad); } else { GstCaps *subcaps = gst_subtitle_overlay_create_factory_caps (); ret = !gst_caps_is_subset (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; sinkcaps = gst_pad_query_caps (sinkpad, NULL); if (!gst_caps_is_any (sinkcaps)) ret = !gst_pad_query_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; sinkcaps = gst_pad_query_caps (sinkpad, NULL); if (!gst_caps_is_any (sinkcaps)) ret = !gst_pad_query_accept_caps (sinkpad, caps); gst_caps_unref (sinkcaps); gst_object_unref (sinkpad); } } done: GST_SOURCE_GROUP_UNLOCK (group); 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 (GstPlayBin * playbin, GstElement * sink, GstCaps * caps) { GstPad *sinkpad; 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_query_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; GList *ave_list = NULL, *l; GstAVElement *ave = NULL; GSequence *ave_seq = NULL; GSequenceIter *seq_iter; 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_OBJECT_NAME (factory)); /* if it's not a sink, we make sure the element is compatible with * the fixed sink */ if (!gst_element_factory_list_is_type (factory, GST_ELEMENT_FACTORY_TYPE_SINK)) { gboolean isvideodec = gst_element_factory_list_is_type (factory, GST_ELEMENT_FACTORY_TYPE_DECODER | GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO | GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE); gboolean isaudiodec = gst_element_factory_list_is_type (factory, GST_ELEMENT_FACTORY_TYPE_DECODER | GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO); if (!isvideodec && !isaudiodec) return GST_AUTOPLUG_SELECT_TRY; GST_SOURCE_GROUP_LOCK (group); g_mutex_lock (&playbin->elements_lock); if (isaudiodec) { ave_seq = playbin->aelements; sinkp = &group->audio_sink; } else { ave_seq = playbin->velements; sinkp = &group->video_sink; } seq_iter = g_sequence_lookup (ave_seq, factory, (GCompareDataFunc) avelement_lookup_decoder, NULL); if (seq_iter) { /* Go to first iter with that decoder */ do { GSequenceIter *tmp_seq_iter; tmp_seq_iter = g_sequence_iter_prev (seq_iter); if (!avelement_iter_is_equal (tmp_seq_iter, factory)) break; seq_iter = tmp_seq_iter; } while (!g_sequence_iter_is_begin (seq_iter)); while (!g_sequence_iter_is_end (seq_iter) && avelement_iter_is_equal (seq_iter, factory)) { ave = g_sequence_get (seq_iter); ave_list = g_list_prepend (ave_list, ave); seq_iter = g_sequence_iter_next (seq_iter); } /* Sort all GstAVElements by their relative ranks and insert * into the decoders list */ ave_list = g_list_sort (ave_list, (GCompareFunc) avelement_compare); } else { ave_list = g_list_prepend (ave_list, NULL); } /* if it is a decoder and we don't have a fixed sink, then find out * the matching audio/video sink from GstAVElements list */ for (l = ave_list; l; l = l->next) { gboolean created_sink = FALSE; ave = (GstAVElement *) l->data; if (((isaudiodec && !group->audio_sink) || (isvideodec && !group->video_sink))) { if (ave && ave->sink) { GST_DEBUG_OBJECT (playbin, "Trying to create sink '%s' for decoder '%s'", gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (ave->sink)), gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory))); if ((*sinkp = gst_element_factory_create (ave->sink, NULL)) == NULL) { GST_WARNING_OBJECT (playbin, "Could not create an element from %s", gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (ave->sink))); continue; } else { if (!activate_sink (playbin, *sinkp, NULL)) { gst_object_unref (*sinkp); *sinkp = NULL; GST_WARNING_OBJECT (playbin, "Could not activate sink %s", gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (ave->sink))); continue; } gst_object_ref_sink (*sinkp); created_sink = TRUE; } } } /* If it is a decoder and we have a fixed sink for the media * type it outputs, check that the decoder is compatible with this sink */ if ((isaudiodec && group->audio_sink) || (isvideodec && group->video_sink)) { gboolean compatible = FALSE; GstPad *sinkpad; GstCaps *caps; GstElement *sink; sink = *sinkp; if ((sinkpad = gst_element_get_static_pad (sink, "sink"))) { GstPlayFlags flags = gst_play_bin_get_flags (playbin); GstCaps *raw_caps = (isaudiodec) ? gst_static_caps_get (&raw_audio_caps) : gst_static_caps_get (&raw_video_caps); caps = gst_pad_query_caps (sinkpad, NULL); /* If the sink supports raw audio/video, we first check * if the decoder could output any raw audio/video format * and assume it is compatible with the sink then. We don't * do a complete compatibility check here if converters * are plugged between the decoder and the sink because * the converters will convert between raw formats and * even if the decoder format is not supported by the decoder * a converter will convert it. * * We assume here that the converters can convert between * any raw format. */ if ((isaudiodec && !(flags & GST_PLAY_FLAG_NATIVE_AUDIO) && gst_caps_can_intersect (caps, raw_caps)) || (!isaudiodec && !(flags & GST_PLAY_FLAG_NATIVE_VIDEO) && gst_caps_can_intersect (caps, raw_caps))) { compatible = gst_element_factory_can_src_any_caps (factory, raw_caps) || gst_element_factory_can_src_any_caps (factory, caps); } else { compatible = gst_element_factory_can_src_any_caps (factory, caps); } gst_object_unref (sinkpad); gst_caps_unref (caps); } if (compatible) break; GST_DEBUG_OBJECT (playbin, "%s not compatible with the fixed sink", GST_OBJECT_NAME (factory)); /* If it is not compatible, either continue with the next possible * sink or if we have a fixed sink, skip the decoder */ if (created_sink) { gst_element_set_state (*sinkp, GST_STATE_NULL); gst_object_unref (*sinkp); *sinkp = NULL; } else { g_mutex_unlock (&playbin->elements_lock); GST_SOURCE_GROUP_UNLOCK (group); return GST_AUTOPLUG_SELECT_SKIP; } } } g_list_free (ave_list); g_mutex_unlock (&playbin->elements_lock); GST_SOURCE_GROUP_UNLOCK (group); 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 '%s'", GST_OBJECT_NAME (factory)); klass = gst_element_factory_get_metadata (factory, GST_ELEMENT_METADATA_KLASS); /* 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 (playbin, 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 '%s'", gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory))); if ((*sinkp = 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; } element = *sinkp; if (!activate_sink (playbin, element, NULL)) { GST_WARNING_OBJECT (playbin, "Could not activate sink %s", gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory))); *sinkp = NULL; gst_object_unref (element); 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 (playbin, element, caps)) { *sinkp = NULL; 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); 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; } #define GST_PLAY_BIN_FILTER_CAPS(filter,caps) G_STMT_START { \ if ((filter)) { \ GstCaps *intersection = \ gst_caps_intersect_full ((filter), (caps), GST_CAPS_INTERSECT_FIRST); \ gst_caps_unref ((caps)); \ (caps) = intersection; \ } \ } G_STMT_END static gboolean autoplug_query_caps (GstElement * uridecodebin, GstPad * pad, GstElement * element, GstQuery * query, GstSourceGroup * group) { GstCaps *filter, *result = NULL; GstElement *sink; GstPad *sinkpad = NULL; GstElementFactory *factory; GstElementFactoryListType factory_type; gboolean have_sink = FALSE; GST_SOURCE_GROUP_LOCK (group); gst_query_parse_caps (query, &filter); factory = gst_element_get_factory (element); if (!factory) goto done; if (gst_element_factory_list_is_type (factory, GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO | GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE)) { factory_type = GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO | GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE; /* 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 (pad), GST_OBJECT_CAST (group->suburidecodebin))) { goto done; } if ((sink = group->video_sink)) { sinkpad = gst_element_get_static_pad (sink, "sink"); if (sinkpad) { GstCaps *sinkcaps; sinkcaps = gst_pad_query_caps (sinkpad, filter); if (!gst_caps_is_any (sinkcaps)) { if (!result) result = sinkcaps; else result = gst_caps_merge (result, sinkcaps); } else { gst_caps_unref (sinkcaps); } gst_object_unref (sinkpad); } have_sink = TRUE; } } else if (gst_element_factory_list_is_type (factory, GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO)) { factory_type = GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO; /* 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 (pad), GST_OBJECT_CAST (group->suburidecodebin))) { goto done; } if ((sink = group->audio_sink)) { sinkpad = gst_element_get_static_pad (sink, "sink"); if (sinkpad) { GstCaps *sinkcaps; sinkcaps = gst_pad_query_caps (sinkpad, filter); if (!gst_caps_is_any (sinkcaps)) { if (!result) result = sinkcaps; else result = gst_caps_merge (result, sinkcaps); } else { gst_caps_unref (sinkcaps); } gst_object_unref (sinkpad); } have_sink = TRUE; } } else if (gst_element_factory_list_is_type (factory, GST_ELEMENT_FACTORY_TYPE_MEDIA_SUBTITLE)) { factory_type = GST_ELEMENT_FACTORY_TYPE_MEDIA_SUBTITLE; if ((sink = group->playbin->text_sink)) { sinkpad = gst_element_get_static_pad (sink, "sink"); if (sinkpad) { GstCaps *sinkcaps; sinkcaps = gst_pad_query_caps (sinkpad, filter); if (!gst_caps_is_any (sinkcaps)) { if (!result) result = sinkcaps; else result = gst_caps_merge (result, sinkcaps); } else { gst_caps_unref (sinkcaps); } gst_object_unref (sinkpad); } have_sink = TRUE; } else { GstCaps *subcaps = gst_subtitle_overlay_create_factory_caps (); GST_PLAY_BIN_FILTER_CAPS (filter, subcaps); if (!result) result = subcaps; else result = gst_caps_merge (result, subcaps); } } else { goto done; } if (!have_sink) { GValueArray *factories; gint i, n; factories = autoplug_factories_cb (uridecodebin, pad, NULL, group); n = factories->n_values; for (i = 0; i < n; i++) { GValue *v = g_value_array_get_nth (factories, i); GstElementFactory *f = g_value_get_object (v); const GList *templates; const GList *l; GstCaps *templ_caps; if (!gst_element_factory_list_is_type (f, factory_type)) continue; templates = gst_element_factory_get_static_pad_templates (f); for (l = templates; l; l = l->next) { templ_caps = gst_static_pad_template_get_caps (l->data); if (!gst_caps_is_any (templ_caps)) { GST_PLAY_BIN_FILTER_CAPS (filter, templ_caps); if (!result) result = templ_caps; else result = gst_caps_merge (result, templ_caps); } else { gst_caps_unref (templ_caps); } } } g_value_array_free (factories); } done: GST_SOURCE_GROUP_UNLOCK (group); if (!result) return FALSE; /* Add the actual decoder/parser/etc caps at the very end to * make sure we don't cause empty caps to be returned, e.g. * if a parser asks us but a decoder is required after it * because no sink can handle the format directly. */ { GstPad *target = gst_ghost_pad_get_target (GST_GHOST_PAD (pad)); if (target) { GstCaps *target_caps = gst_pad_get_pad_template_caps (target); GST_PLAY_BIN_FILTER_CAPS (filter, target_caps); result = gst_caps_merge (result, target_caps); gst_object_unref (target); } } gst_query_set_caps_result (query, result); gst_caps_unref (result); return TRUE; } static gboolean autoplug_query_context (GstElement * uridecodebin, GstPad * pad, GstElement * element, GstQuery * query, GstSourceGroup * group) { GstElement *sink; GstPad *sinkpad = NULL; GstElementFactory *factory; gboolean res = FALSE; GST_SOURCE_GROUP_LOCK (group); factory = gst_element_get_factory (element); if (!factory) goto done; if (gst_element_factory_list_is_type (factory, GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO | GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE)) { /* 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 (pad), GST_OBJECT_CAST (group->suburidecodebin))) { goto done; } if ((sink = group->video_sink)) { sinkpad = gst_element_get_static_pad (sink, "sink"); if (sinkpad) { res = gst_pad_query (sinkpad, query); gst_object_unref (sinkpad); } } } else if (gst_element_factory_list_is_type (factory, GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO)) { /* 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 (pad), GST_OBJECT_CAST (group->suburidecodebin))) { goto done; } if ((sink = group->audio_sink)) { sinkpad = gst_element_get_static_pad (sink, "sink"); if (sinkpad) { res = gst_pad_query (sinkpad, query); gst_object_unref (sinkpad); } } } else if (gst_element_factory_list_is_type (factory, GST_ELEMENT_FACTORY_TYPE_MEDIA_SUBTITLE)) { if ((sink = group->playbin->text_sink)) { sinkpad = gst_element_get_static_pad (sink, "sink"); if (sinkpad) { res = gst_pad_query (sinkpad, query); gst_object_unref (sinkpad); } } } else { goto done; } done: GST_SOURCE_GROUP_UNLOCK (group); return res; } static gboolean autoplug_query_cb (GstElement * uridecodebin, GstPad * pad, GstElement * element, GstQuery * query, GstSourceGroup * group) { switch (GST_QUERY_TYPE (query)) { case GST_QUERY_CAPS: return autoplug_query_caps (uridecodebin, pad, element, query, group); case GST_QUERY_CONTEXT: return autoplug_query_context (uridecodebin, pad, element, query, group); default: return FALSE; } } 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 = NULL; GstElement *suburidecodebin = NULL; GstPlayFlags flags; gboolean audio_sink_activated = FALSE; gboolean video_sink_activated = FALSE; gboolean text_sink_activated = FALSE; 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); else group->audio_sink = gst_play_sink_get_sink (playbin->playsink, GST_PLAY_SINK_TYPE_AUDIO); if (group->audio_sink) { if (!activate_sink (playbin, group->audio_sink, &audio_sink_activated)) { if (group->audio_sink == playbin->audio_sink) { goto sink_failure; } else { gst_object_unref (group->audio_sink); group->audio_sink = NULL; } } } if (playbin->video_sink) group->video_sink = gst_object_ref (playbin->video_sink); else group->video_sink = gst_play_sink_get_sink (playbin->playsink, GST_PLAY_SINK_TYPE_VIDEO); if (group->video_sink) { if (!activate_sink (playbin, group->video_sink, &video_sink_activated)) { if (group->video_sink == playbin->video_sink) { goto sink_failure; } else { gst_object_unref (group->video_sink); group->video_sink = NULL; } } } if (playbin->text_sink) group->text_sink = gst_object_ref (playbin->text_sink); else group->text_sink = gst_play_sink_get_sink (playbin->playsink, GST_PLAY_SINK_TYPE_TEXT); if (group->text_sink) { if (!activate_sink (playbin, group->text_sink, &text_sink_activated)) { if (group->text_sink == playbin->text_sink) { goto sink_failure; } else { gst_object_unref (group->text_sink); group->text_sink = NULL; } } } g_slist_free (group->suburi_flushes_to_drop); group->suburi_flushes_to_drop = NULL; if (!group->suburi_flushes_to_drop_lock.p) g_mutex_init (&group->suburi_flushes_to_drop_lock); if (group->uridecodebin) { GST_DEBUG_OBJECT (playbin, "reusing existing uridecodebin"); uridecodebin = group->uridecodebin; gst_element_set_state (uridecodebin, GST_STATE_READY); /* no need to take extra ref, we already have one * and the bin will add one since it is no longer floating, * as it was at least added once before (below) */ gst_bin_add (GST_BIN_CAST (playbin), 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); group->autoplug_query_id = g_signal_connect (uridecodebin, "autoplug-query", G_CALLBACK (autoplug_query_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); /* no need to take extra ref, we already have one * and the bin will add one since it is no longer floating, * as it was at least added once before (below) */ gst_bin_add (GST_BIN_CAST (playbin), 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); group->sub_autoplug_query_id = g_signal_connect (suburidecodebin, "autoplug-query", G_CALLBACK (autoplug_query_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); REMOVE_SIGNAL (group->suburidecodebin, group->sub_autoplug_query_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 playbin 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; 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)); GST_SOURCE_GROUP_LOCK (group); goto error_cleanup; } uridecodebin_failure: { GST_DEBUG_OBJECT (playbin, "failed state change of uridecodebin"); goto error_cleanup; } sink_failure: { GST_ERROR_OBJECT (playbin, "failed to activate sinks"); goto error_cleanup; } error_cleanup: { /* delete any custom sinks we might have */ if (group->audio_sink) { /* If this is a automatically created sink set it to NULL */ if (audio_sink_activated) 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 (video_sink_activated) gst_element_set_state (group->video_sink, GST_STATE_NULL); gst_object_unref (group->video_sink); } group->video_sink = NULL; if (group->text_sink) { /* If this is a automatically created sink set it to NULL */ if (text_sink_activated) gst_element_set_state (group->text_sink, GST_STATE_NULL); gst_object_unref (group->text_sink); } group->text_sink = NULL; if (uridecodebin) { gst_element_set_state (uridecodebin, GST_STATE_NULL); gst_bin_remove (GST_BIN_CAST (playbin), uridecodebin); } GST_SOURCE_GROUP_UNLOCK (group); 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 < PLAYBIN_STREAM_LAST; i++) { GstSourceCombine *combine = &group->combiner[i]; GST_DEBUG_OBJECT (playbin, "unlinking combiner %s", combine->media_list[0]); if (combine->srcpad) { if (combine->sinkpad) { GST_LOG_OBJECT (playbin, "unlinking from sink"); gst_pad_unlink (combine->srcpad, combine->sinkpad); /* release back */ GST_LOG_OBJECT (playbin, "release sink pad"); gst_play_sink_release_pad (playbin->playsink, combine->sinkpad); gst_object_unref (combine->sinkpad); combine->sinkpad = NULL; } gst_object_unref (combine->srcpad); combine->srcpad = NULL; } if (combine->combiner) { gint n; /* release and unref requests pad from the combiner */ for (n = 0; n < combine->channels->len; n++) { GstPad *sinkpad = g_ptr_array_index (combine->channels, n); gst_element_release_request_pad (combine->combiner, sinkpad); gst_object_unref (sinkpad); } g_ptr_array_set_size (combine->channels, 0); gst_element_set_state (combine->combiner, GST_STATE_NULL); gst_bin_remove (GST_BIN_CAST (playbin), combine->combiner); combine->combiner = NULL; } } /* delete any custom sinks we might have. * conditionally set them to null if they aren't inside playsink yet */ if (group->audio_sink) { if (!gst_object_has_ancestor (GST_OBJECT_CAST (group->audio_sink), GST_OBJECT_CAST (playbin->playsink))) { 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 (!gst_object_has_ancestor (GST_OBJECT_CAST (group->video_sink), GST_OBJECT_CAST (playbin->playsink))) { gst_element_set_state (group->video_sink, GST_STATE_NULL); } gst_object_unref (group->video_sink); } group->video_sink = NULL; if (group->text_sink) { if (!gst_object_has_ancestor (GST_OBJECT_CAST (group->text_sink), GST_OBJECT_CAST (playbin->playsink))) { gst_element_set_state (group->text_sink, GST_STATE_NULL); } gst_object_unref (group->text_sink); } group->text_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); REMOVE_SIGNAL (group->uridecodebin, group->autoplug_query_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); REMOVE_SIGNAL (group->suburidecodebin, group->sub_autoplug_query_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); } group->have_group_id = FALSE; 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) { new_group->stream_changed_pending = TRUE; 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: { new_group->stream_changed_pending = FALSE; 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 && curr_group->active) { /* 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; GList *l; /* 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); if (playbin->video_stream_combiner) gst_element_set_state (playbin->video_stream_combiner, GST_STATE_NULL); if (playbin->audio_stream_combiner) gst_element_set_state (playbin->audio_stream_combiner, GST_STATE_NULL); if (playbin->text_stream_combiner) gst_element_set_state (playbin->text_stream_combiner, 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); /* Remove all non-persistent contexts */ GST_OBJECT_LOCK (playbin); for (l = playbin->contexts; l;) { GstContext *context = l->data; if (!gst_context_is_persistent (context)) { GList *next; gst_context_unref (context); next = l->next; playbin->contexts = g_list_delete_link (playbin->contexts, l); l = next; } else { l = l->next; } } if (playbin->source) { gst_object_unref (playbin->source); playbin->source = NULL; } GST_OBJECT_UNLOCK (playbin); 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; } } static void gst_play_bin_overlay_expose (GstVideoOverlay * overlay) { GstPlayBin *playbin = GST_PLAY_BIN (overlay); gst_video_overlay_expose (GST_VIDEO_OVERLAY (playbin->playsink)); } static void gst_play_bin_overlay_handle_events (GstVideoOverlay * overlay, gboolean handle_events) { GstPlayBin *playbin = GST_PLAY_BIN (overlay); gst_video_overlay_handle_events (GST_VIDEO_OVERLAY (playbin->playsink), handle_events); } static void gst_play_bin_overlay_set_render_rectangle (GstVideoOverlay * overlay, gint x, gint y, gint width, gint height) { GstPlayBin *playbin = GST_PLAY_BIN (overlay); gst_video_overlay_set_render_rectangle (GST_VIDEO_OVERLAY (playbin->playsink), x, y, width, height); } static void gst_play_bin_overlay_set_window_handle (GstVideoOverlay * overlay, guintptr handle) { GstPlayBin *playbin = GST_PLAY_BIN (overlay); gst_video_overlay_set_window_handle (GST_VIDEO_OVERLAY (playbin->playsink), handle); } static void gst_play_bin_overlay_init (gpointer g_iface, gpointer g_iface_data) { GstVideoOverlayInterface *iface = (GstVideoOverlayInterface *) g_iface; iface->expose = gst_play_bin_overlay_expose; iface->handle_events = gst_play_bin_overlay_handle_events; iface->set_render_rectangle = gst_play_bin_overlay_set_render_rectangle; iface->set_window_handle = gst_play_bin_overlay_set_window_handle; } static void gst_play_bin_navigation_send_event (GstNavigation * navigation, GstStructure * structure) { GstPlayBin *playbin = GST_PLAY_BIN (navigation); gst_navigation_send_event (GST_NAVIGATION (playbin->playsink), structure); } static void gst_play_bin_navigation_init (gpointer g_iface, gpointer g_iface_data) { GstNavigationInterface *iface = (GstNavigationInterface *) g_iface; iface->send_event = gst_play_bin_navigation_send_event; } static const GList * gst_play_bin_colorbalance_list_channels (GstColorBalance * balance) { GstPlayBin *playbin = GST_PLAY_BIN (balance); return gst_color_balance_list_channels (GST_COLOR_BALANCE (playbin->playsink)); } static void gst_play_bin_colorbalance_set_value (GstColorBalance * balance, GstColorBalanceChannel * channel, gint value) { GstPlayBin *playbin = GST_PLAY_BIN (balance); gst_color_balance_set_value (GST_COLOR_BALANCE (playbin->playsink), channel, value); } static gint gst_play_bin_colorbalance_get_value (GstColorBalance * balance, GstColorBalanceChannel * channel) { GstPlayBin *playbin = GST_PLAY_BIN (balance); return gst_color_balance_get_value (GST_COLOR_BALANCE (playbin->playsink), channel); } static GstColorBalanceType gst_play_bin_colorbalance_get_balance_type (GstColorBalance * balance) { GstPlayBin *playbin = GST_PLAY_BIN (balance); return gst_color_balance_get_balance_type (GST_COLOR_BALANCE (playbin->playsink)); } static void gst_play_bin_colorbalance_init (gpointer g_iface, gpointer g_iface_data) { GstColorBalanceInterface *iface = (GstColorBalanceInterface *) g_iface; iface->list_channels = gst_play_bin_colorbalance_list_channels; iface->set_value = gst_play_bin_colorbalance_set_value; iface->get_value = gst_play_bin_colorbalance_get_value; iface->get_balance_type = gst_play_bin_colorbalance_get_balance_type; } gboolean gst_play_bin2_plugin_init (GstPlugin * plugin) { GST_DEBUG_CATEGORY_INIT (gst_play_bin_debug, "playbin", 0, "play bin"); return gst_element_register (plugin, "playbin", GST_RANK_NONE, GST_TYPE_PLAY_BIN); }