/* GStreamer * Copyright (C) 1999,2000,2001,2002 Erik Walthinsen * 2000,2001,2002 Wim Taymans * 2002 Steve Baker * 2003 Julien Moutte * * play.c: GstPlay object code * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #include "play.h" enum { STREAM_END, INFORMATION, STATE_CHANGE, STREAM_LENGTH, TIME_TICK, HAVE_XID, HAVE_VIS_XID, HAVE_VIDEO_SIZE, PIPELINE_ERROR, /* put additional signals before this comment */ LAST_SIGNAL, }; /* this struct is used to decouple signals coming out of threaded pipelines */ typedef struct _GstPlaySignal GstPlaySignal; struct _GstPlaySignal { gint signal_id; union { struct { gint width; gint height; } video_size; struct { gint xid; } video_xid; struct { GstElementState old_state; GstElementState new_state; } state; struct { GstObject* object; GParamSpec* param; } info; struct { GstElement* element; gchar* error; } error; } signal_data; }; enum { ARG_0, ARG_LOCATION, ARG_VOLUME, ARG_MUTE, /* FILL ME */ }; static guint gst_play_signals [LAST_SIGNAL] = { 0 }; static GstElementClass *parent_class = NULL; /* ============================================================= */ /* */ /* Private Methods */ /* */ /* ============================================================= */ /* =========================================== */ /* */ /* Tool Box */ /* */ /* =========================================== */ static GQuark gst_play_error_quark (void) { static GQuark quark = 0; if (quark == 0) { quark = g_quark_from_static_string ("gst-play-error-quark"); } return quark; } /* GError creation when plugin is missing * If we want to make error messages less * generic and have more errors than only * plug-ins, move the message creation to the switch */ static void gst_play_error_plugin ( GstPlayError type, GError **error) { gchar *name; if (error == NULL) return; switch (type) { case GST_PLAY_ERROR_THREAD: name = g_strdup ("thread"); break; case GST_PLAY_ERROR_QUEUE: name = g_strdup ("queue"); break; case GST_PLAY_ERROR_FAKESINK: name = g_strdup ("fakesink"); break; case GST_PLAY_ERROR_VOLUME: name = g_strdup ("volume"); break; case GST_PLAY_ERROR_COLORSPACE: name = g_strdup ("colorspace"); break; case GST_PLAY_ERROR_GNOMEVFSSRC: name = g_strdup ("gnomevfssrc"); break; default: name = g_strdup ("unknown"); break; } *error = g_error_new ( GST_PLAY_ERROR, type, "The %s plug-in could not be found. " "This plug-in is essential for gst-player. " "Please install it and verify that it works " "by running 'gst-inspect %s'", name, name); g_free (name); return; } static void gst_play_set_property ( GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { GstPlay *play; g_return_if_fail (object != NULL); g_return_if_fail (GST_IS_PLAY (object)); play = GST_PLAY (object); switch (prop_id) { case ARG_LOCATION: gst_play_set_location(play, g_value_get_string (value)); break; case ARG_VOLUME: gst_play_set_volume(play, g_value_get_float (value)); break; case ARG_MUTE: gst_play_set_mute(play, g_value_get_boolean (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_play_get_property ( GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { GstPlay *play; g_return_if_fail (object != NULL); g_return_if_fail (GST_IS_PLAY (object)); play = GST_PLAY (object); switch (prop_id) { case ARG_LOCATION: g_value_set_string (value, gst_play_get_location(play)); break; case ARG_VOLUME: g_value_set_float(value, gst_play_get_volume(play)); break; case ARG_MUTE: g_value_set_boolean (value, gst_play_get_mute(play)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } /* =========================================== */ /* */ /* Event Handlers, Callbacks */ /* */ /* =========================================== */ static gboolean gst_play_get_length_callback (GstPlay *play) { gint64 value; GstFormat format = GST_FORMAT_TIME; gboolean query_worked = FALSE; g_print("trying to get length\n"); if ( (play->audio_sink_element != NULL) && (GST_IS_ELEMENT (play->audio_sink_element)) ) { g_mutex_lock(play->audio_bin_mutex); query_worked = gst_element_query (play->audio_sink_element, GST_QUERY_TOTAL, &format, &value); g_mutex_unlock(play->audio_bin_mutex); g_message ("getting length from audio sink"); } else if ( (play->video_sink_element != NULL) && (GST_IS_ELEMENT (play->video_sink_element)) ) { g_mutex_lock(play->video_bin_mutex); query_worked = gst_element_query (play->video_sink_element, GST_QUERY_TOTAL, &format, &value); g_mutex_unlock(play->video_bin_mutex); } if (query_worked){ g_print("got length %" G_GINT64_FORMAT "\n", value); g_signal_emit (G_OBJECT (play), gst_play_signals [STREAM_LENGTH], 0, value); play->length_nanos = value; return FALSE; } else { if (play->get_length_attempt-- < 1){ /* we've tried enough times, give up */ return FALSE; } } return (gst_element_get_state(play->pipeline) == GST_STATE_PLAYING); } static gboolean gst_play_tick_callback (GstPlay *play) { gint secs; g_return_val_if_fail (play != NULL, FALSE); g_return_val_if_fail (GST_IS_PLAY(play), FALSE); play->clock = gst_bin_get_clock (GST_BIN (play->pipeline)); play->time_nanos = gst_clock_get_time(play->clock); secs = (gint) (play->time_nanos / GST_SECOND); if (secs != play->time_seconds){ play->time_seconds = secs; g_signal_emit (G_OBJECT (play), gst_play_signals [TIME_TICK], 0, play->time_nanos); } return (gst_element_get_state(play->pipeline) == GST_STATE_PLAYING); } static gboolean gst_play_default_idle (GstPlayIdleData *idle_data) { if(idle_data->func(idle_data->data)){ /* call this function again in the future */ return TRUE; } /* this function should no longer be called */ g_free(idle_data); return FALSE; } static guint gst_play_default_timeout_add ( guint interval, GSourceFunc function, gpointer data) { GstPlayIdleData *idle_data = g_new0(GstPlayIdleData, 1); idle_data->func = function; idle_data->data = data; return g_timeout_add (interval, (GSourceFunc)gst_play_default_idle, idle_data); } static guint gst_play_default_idle_add ( GSourceFunc function, gpointer data) { GstPlayIdleData *idle_data = g_new0(GstPlayIdleData, 1); idle_data->func = function; idle_data->data = data; return g_idle_add ((GSourceFunc)gst_play_default_idle, idle_data); } static gboolean gst_play_idle_callback (GstPlay *play) { g_return_val_if_fail (play != NULL, FALSE); g_return_val_if_fail (GST_IS_PLAY(play), FALSE); return gst_bin_iterate (GST_BIN (play->pipeline)); } static gboolean gst_play_idle_signal (GstPlay *play) { GstPlaySignal *signal; gint queue_length; g_return_val_if_fail (play != NULL, FALSE); g_return_val_if_fail (GST_IS_PLAY(play), FALSE); signal = g_async_queue_try_pop(play->signal_queue); if (signal == NULL){ return FALSE; } switch (signal->signal_id){ case HAVE_XID: g_signal_emit (G_OBJECT (play), gst_play_signals[HAVE_XID], 0, signal->signal_data.video_xid.xid); break; case HAVE_VIS_XID: g_signal_emit (G_OBJECT (play), gst_play_signals[HAVE_VIS_XID], 0, signal->signal_data.video_xid.xid); break; case HAVE_VIDEO_SIZE: g_signal_emit (G_OBJECT (play), gst_play_signals[HAVE_VIDEO_SIZE], 0, signal->signal_data.video_size.width, signal->signal_data.video_size.height); break; case STATE_CHANGE: g_signal_emit (G_OBJECT (play), gst_play_signals[STATE_CHANGE], 0, signal->signal_data.state.old_state, signal->signal_data.state.new_state); break; case INFORMATION: g_signal_emit (G_OBJECT (play), gst_play_signals[INFORMATION], 0, signal->signal_data.info.object, signal->signal_data.info.param); gst_object_unref (signal->signal_data.info.object); break; case PIPELINE_ERROR: if (gst_element_get_state(play->pipeline) == GST_STATE_PLAYING) gst_element_set_state(play->pipeline, GST_STATE_READY); g_signal_emit (G_OBJECT (play), gst_play_signals[PIPELINE_ERROR], 0, signal->signal_data.error.element, signal->signal_data.error.error); gst_object_unref (GST_OBJECT(signal->signal_data.error.element)); break; default: break; } g_free(signal); queue_length = g_async_queue_length (play->signal_queue); return (queue_length > 0); } static gboolean gst_play_idle_eos (GstPlay* play) { g_signal_emit (G_OBJECT (play), gst_play_signals [STREAM_END], 0); return FALSE; } static void callback_audio_sink_eos ( GstElement *element, GstPlay *play) { play->idle_add_func ((GSourceFunc) gst_play_idle_eos, play); } static void callback_video_have_xid ( GstElement *element, gint xid, GstPlay *play) { GstPlaySignal *signal; signal = g_new0(GstPlaySignal, 1); signal->signal_id = HAVE_XID; signal->signal_data.video_xid.xid = xid; g_async_queue_push(play->signal_queue, signal); play->idle_add_func ((GSourceFunc) gst_play_idle_signal, play); } static void callback_video_have_vis_xid ( GstElement *element, gint xid, GstPlay *play) { GstPlaySignal *signal; signal = g_new0(GstPlaySignal, 1); signal->signal_id = HAVE_VIS_XID; signal->signal_data.video_xid.xid = xid; g_async_queue_push(play->signal_queue, signal); play->idle_add_func ((GSourceFunc) gst_play_idle_signal, play); } static void callback_video_have_size ( GstElement *element, gint width, gint height, GstPlay *play) { GstPlaySignal *signal; signal = g_new0(GstPlaySignal, 1); signal->signal_id = HAVE_VIDEO_SIZE; signal->signal_data.video_size.width = width; signal->signal_data.video_size.height = height; g_async_queue_push(play->signal_queue, signal); play->idle_add_func ((GSourceFunc) gst_play_idle_signal, play); } static void callback_bin_pre_iterate ( GstBin *bin, GMutex *mutex) { g_mutex_lock(mutex); } static void callback_bin_post_iterate ( GstBin *bin, GMutex *mutex) { g_mutex_unlock(mutex); } static void callback_pipeline_error ( GstElement *object, GstElement *orig, gchar *error, GstPlay* play) { GstPlaySignal *signal; signal = g_new0(GstPlaySignal, 1); signal->signal_id = PIPELINE_ERROR; signal->signal_data.error.element = orig; signal->signal_data.error.error = error; gst_object_ref (GST_OBJECT(orig)); g_async_queue_push(play->signal_queue, signal); play->idle_add_func ((GSourceFunc) gst_play_idle_signal, play); } static void callback_pipeline_deep_notify ( GstObject *element, GstObject *orig, GParamSpec *param, GstPlay* play) { GstPlaySignal *signal; signal = g_new0(GstPlaySignal, 1); signal->signal_id = INFORMATION; signal->signal_data.info.object = orig; signal->signal_data.info.param = param; gst_object_ref (orig); g_async_queue_push(play->signal_queue, signal); play->idle_add_func ((GSourceFunc) gst_play_idle_signal, play); } static void callback_pipeline_state_change ( GstElement *element, GstElementState old, GstElementState state, GstPlay* play) { GstPlaySignal *signal; g_return_if_fail (play != NULL); g_return_if_fail (element != NULL); g_return_if_fail (GST_IS_ELEMENT (element)); g_return_if_fail (GST_IS_PLAY (play)); g_return_if_fail (element == play->pipeline); /*g_print ("got state change %s to %s\n", gst_element_state_get_name (old), gst_element_state_get_name (state));*/ /* do additional stuff depending on state */ if (GST_IS_PIPELINE (play->pipeline)){ switch (state) { case GST_STATE_PLAYING: play->idle_add_func ( (GSourceFunc) gst_play_idle_callback, play); play->timeout_add_func ( 200, (GSourceFunc) gst_play_tick_callback, play); if (play->length_nanos == 0LL){ /* try to get the length up to 16 times */ play->get_length_attempt = 16; play->timeout_add_func (200, (GSourceFunc) gst_play_get_length_callback, play); } break; default: break; } } signal = g_new0(GstPlaySignal, 1); signal->signal_id = STATE_CHANGE; signal->signal_data.state.old_state = old; signal->signal_data.state.new_state = state; g_async_queue_push(play->signal_queue, signal); play->idle_add_func ((GSourceFunc) gst_play_idle_signal, play); } /* split static pipeline functions to a seperate file */ #include "playpipelines.c" /* =========================================== */ /* */ /* Init & Class init */ /* */ /* =========================================== */ static void gst_play_dispose (GObject *object) { GstPlay *play; g_return_if_fail (object != NULL); g_return_if_fail (GST_IS_PLAY(object)); play = GST_PLAY (object); /* Removing all sources */ while (g_source_remove_by_user_data (play)); G_OBJECT_CLASS (parent_class)->dispose (object); g_mutex_free(play->audio_bin_mutex); g_mutex_free(play->video_bin_mutex); } static void gst_play_class_init (GstPlayClass *klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); parent_class = g_type_class_ref(GST_TYPE_OBJECT); klass->information = NULL; klass->state_changed = NULL; klass->stream_end = NULL; gobject_class->dispose = gst_play_dispose; gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_play_set_property); gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_play_get_property); g_object_class_install_property ( gobject_class, ARG_LOCATION, g_param_spec_string ( "location", "location of file", "location of the file to play", NULL, G_PARAM_READWRITE)); g_object_class_install_property ( gobject_class, ARG_VOLUME, g_param_spec_float ( "volume", "Playing volume", "Playing volume", 0, 1.0, 0, G_PARAM_READWRITE)); g_object_class_install_property ( gobject_class, ARG_MUTE, g_param_spec_boolean ( "mute", "Volume muted", "Playing volume muted", FALSE, G_PARAM_READWRITE)); gst_play_signals [INFORMATION] = g_signal_new ("information", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GstPlayClass, information), NULL, NULL, gst_marshal_VOID__OBJECT_PARAM, G_TYPE_NONE, 2, G_TYPE_OBJECT, G_TYPE_PARAM); gst_play_signals [PIPELINE_ERROR] = g_signal_new ("pipeline_error", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GstPlayClass, pipeline_error), NULL, NULL, gst_marshal_VOID__OBJECT_PARAM, G_TYPE_NONE, 2, G_TYPE_OBJECT, G_TYPE_PARAM); gst_play_signals [STATE_CHANGE] = g_signal_new ("state_change", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GstPlayClass, state_changed), NULL, NULL, gst_marshal_VOID__INT_INT, G_TYPE_NONE, 2, G_TYPE_INT, G_TYPE_INT); gst_play_signals [STREAM_END] = g_signal_new ("stream_end", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GstPlayClass, stream_end), NULL, NULL, gst_marshal_VOID__VOID, G_TYPE_NONE, 0); gst_play_signals [TIME_TICK] = g_signal_new ("time_tick", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GstPlayClass, time_tick), NULL, NULL, gst_marshal_VOID__INT64, G_TYPE_NONE, 1, G_TYPE_INT64); gst_play_signals [STREAM_LENGTH] = g_signal_new ("stream_length", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GstPlayClass, stream_length), NULL, NULL, gst_marshal_VOID__INT64, G_TYPE_NONE, 1, G_TYPE_INT64); gst_play_signals [HAVE_XID] = g_signal_new ("have_xid", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GstPlayClass, have_xid), NULL, NULL, gst_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT); gst_play_signals [HAVE_VIS_XID] = g_signal_new ("have_vis_xid", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GstPlayClass, have_vis_xid), NULL, NULL, gst_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT); gst_play_signals [HAVE_VIDEO_SIZE] = g_signal_new ("have_video_size", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GstPlayClass, have_video_size), NULL, NULL, gst_marshal_VOID__INT_INT, G_TYPE_NONE, 2, G_TYPE_INT, G_TYPE_INT); gst_control_init(NULL,NULL); } static void gst_play_init (GstPlay *play) { play->pipeline = NULL; play->source = NULL; play->autoplugger = NULL; play->audio_sink = NULL; play->audio_sink_element = NULL; play->video_sink = NULL; play->video_sink_element = NULL; play->volume = NULL; play->other_elements = g_hash_table_new(g_str_hash, g_str_equal); play->audio_bin_mutex = g_mutex_new(); play->video_bin_mutex = g_mutex_new(); gst_play_set_idle_timeout_funcs( play, gst_play_default_timeout_add, gst_play_default_idle_add); } /* ============================================================= */ /* */ /* Public Methods */ /* */ /* ============================================================= */ /* =========================================== */ /* */ /* Toolbox */ /* */ /* =========================================== */ /** * gst_play_seek_to_time: * @play: a #GstPlay. * @time_nanos: a #gint64 indicating a time position. * * Performs a seek on @play until @time_nanos. */ void gst_play_seek_to_time ( GstPlay *play, gint64 time_nanos) { GstEvent *s_event; guint8 prev_state; gboolean audio_seek_worked = FALSE; gboolean video_seek_worked = FALSE; gboolean visualisation_seek_worked = FALSE; g_return_if_fail (play != NULL); g_return_if_fail (GST_IS_PLAY (play)); if (time_nanos < 0LL){ play->seek_time = 0LL; } else if (time_nanos < 0LL){ play->seek_time = play->length_nanos; } else { play->seek_time = time_nanos; } /*g_print("doing seek to %lld\n", play->seek_time);*/ prev_state = GST_STATE(play->pipeline); gst_element_set_state(play->pipeline, GST_STATE_PAUSED); s_event = gst_event_new_seek (GST_FORMAT_TIME | GST_SEEK_METHOD_SET | GST_SEEK_FLAG_FLUSH, play->seek_time); if (play->audio_sink_element != NULL){ gst_event_ref (s_event); audio_seek_worked = gst_element_send_event ( play->audio_sink_element, s_event); } if (play->visualisation_sink_element != NULL){ gst_event_ref (s_event); visualisation_seek_worked = gst_element_send_event ( play->visualisation_sink_element, s_event); } if (play->video_sink_element != NULL){ gst_event_ref (s_event); video_seek_worked = gst_element_send_event ( play->video_sink_element, s_event); } gst_event_unref (s_event); if (audio_seek_worked || video_seek_worked){ play->time_nanos = gst_clock_get_time(play->clock); g_signal_emit (G_OBJECT (play), gst_play_signals [TIME_TICK], 0, play->time_nanos); } gst_element_set_state(play->pipeline, prev_state); } /** * gst_play_need_new_video_window: * @play: a #GstPlay. * * Request a new video window for @play. */ void gst_play_need_new_video_window (GstPlay *play) { g_return_if_fail (play != NULL); g_return_if_fail (GST_IS_PLAY (play)); if (GST_IS_ELEMENT(play->video_sink_element)){ g_object_set( G_OBJECT(play->video_sink_element), "need_new_window", TRUE, NULL); } if (GST_IS_ELEMENT(play->visualisation_sink_element)){ g_object_set( G_OBJECT(play->visualisation_sink_element), "need_new_window", TRUE, NULL); } } void gst_play_set_idle_timeout_funcs ( GstPlay *play, GstPlayTimeoutAdd timeout_add_func, GstPlayIdleAdd idle_add_func) { g_return_if_fail (play != NULL); g_return_if_fail (GST_IS_PLAY (play)); play->timeout_add_func = timeout_add_func; play->idle_add_func = idle_add_func; } /** * gst_play_get_sink_element: * @play: a #GstPlay. * @element: a #GstElement. * @sink_type: a #GstPlaySinkType. * * Searches recursively for a sink #GstElement with * type @sink_type in @element which is supposed to be a #GstBin. * * Returns: the sink #GstElement of @element. */ GstElement* gst_play_get_sink_element ( GstPlay *play, GstElement *element, GstPlaySinkType sink_type) { GList *elements = NULL; const GList *pads = NULL; gboolean has_src, has_correct_type; g_return_val_if_fail (play != NULL, NULL); g_return_val_if_fail (element != NULL, NULL); g_return_val_if_fail (GST_IS_PLAY (play), NULL); g_return_val_if_fail (GST_IS_ELEMENT (element), NULL); if (!GST_IS_BIN(element)){ /* since its not a bin, we'll presume this * element is a sink element */ return element; } elements = (GList *) gst_bin_get_list (GST_BIN(element)); /* traverse all elements looking for a src pad */ while (elements) { element = GST_ELEMENT (elements->data); /* Recursivity :) */ if (GST_IS_BIN(element)) { element = gst_play_get_sink_element(play,element,sink_type); if (GST_IS_ELEMENT (element)) { return element; } } else { pads = gst_element_get_pad_list (element); has_src = FALSE; has_correct_type = FALSE; while (pads) { /* check for src pad */ if (GST_PAD_DIRECTION (GST_PAD (pads->data)) == GST_PAD_SRC) { has_src = TRUE; break; } else { /* If not a src pad checking caps */ GstCaps *caps; caps = gst_pad_get_caps (GST_PAD (pads->data)); while (caps) { gboolean has_video_cap = FALSE, has_audio_cap = FALSE; if (g_ascii_strcasecmp( gst_caps_get_mime (caps), "audio/raw") == 0) { has_audio_cap = TRUE; } if (g_ascii_strcasecmp( gst_caps_get_mime (caps), "video/raw") == 0) { has_video_cap = TRUE; } switch (sink_type) { case GST_PLAY_SINK_TYPE_AUDIO: if (has_audio_cap) has_correct_type = TRUE; break;; case GST_PLAY_SINK_TYPE_VIDEO: if (has_video_cap) has_correct_type = TRUE; break;; case GST_PLAY_SINK_TYPE_ANY: if ( (has_video_cap) || (has_audio_cap) ) has_correct_type = TRUE; break;; default: has_correct_type = FALSE; } caps = caps->next; } } pads = g_list_next (pads); } if ( (!has_src) && (has_correct_type) ){ return element; } } elements = g_list_next (elements); } /* we didn't find a sink element */ return NULL; } /* =========================================== */ /* */ /* State, Mute, Volume, Location */ /* */ /* =========================================== */ /** * gst_play_set_state: * @play: a #GstPlay. * @state: a #GstElementState. * * Set state of @play 's pipeline to @state. * * Returns: a #GstElementStateReturn indicating if the operation succeeded. */ GstElementStateReturn gst_play_set_state ( GstPlay *play, GstElementState state) { g_return_val_if_fail (play != NULL, GST_STATE_FAILURE); g_return_val_if_fail (GST_IS_PLAY (play), GST_STATE_FAILURE); g_return_val_if_fail (GST_IS_ELEMENT(play->pipeline), GST_STATE_FAILURE); return gst_element_set_state(play->pipeline, state); } /** * gst_play_get_state: * @play: a #GstPlay. * * Get state of @play 's pipeline. * * Returns: a #GstElementState indicating @play 's pipeline current state. */ GstElementState gst_play_get_state (GstPlay *play) { g_return_val_if_fail (play != NULL, GST_STATE_FAILURE); g_return_val_if_fail (GST_IS_PLAY (play), GST_STATE_FAILURE); g_return_val_if_fail (play->pipeline, GST_STATE_FAILURE); return gst_element_get_state(play->pipeline); } /** * gst_play_set_location: * @play: a #GstPlay. * @location: a const #gchar indicating location to play * * Set location of @play to @location. * * Returns: TRUE if location was set successfully. */ gboolean gst_play_set_location ( GstPlay *play, const gchar *location) { GstElementState current_state; g_return_val_if_fail (play != NULL, FALSE); g_return_val_if_fail (GST_IS_PLAY (play), FALSE); g_return_val_if_fail (location != NULL, FALSE); current_state = gst_play_get_state (play); if (current_state != GST_STATE_READY){ gst_play_set_state (play, GST_STATE_READY); } if (play->set_autoplugger){ if (! play->set_autoplugger(play, gst_element_factory_make ("spider", "autoplugger"))){ g_warning ("couldn't replace autoplugger\n"); return FALSE; } } /* FIXME check for valid location (somehow) */ g_object_set (G_OBJECT (play->source), "location", location, NULL); /* reset time/length values */ play->time_seconds = 0; play->length_nanos = 0LL; play->time_nanos = 0LL; g_signal_emit (G_OBJECT (play), gst_play_signals [STREAM_LENGTH], 0, 0LL); g_signal_emit (G_OBJECT (play), gst_play_signals [TIME_TICK], 0, 0LL); play->need_stream_length = TRUE; return TRUE; } /** * gst_play_get_location: * @play: a #GstPlay. * * Get current location of @play. * * Returns: a #gchar pointer to current location. */ gchar* gst_play_get_location (GstPlay *play) { gchar* location; g_return_val_if_fail (play != NULL, NULL); g_return_val_if_fail (GST_IS_PLAY (play), NULL); g_return_val_if_fail (GST_IS_ELEMENT(play->source), NULL); g_object_get (G_OBJECT (play->source), "location", &location, NULL); return location; } /** * gst_play_set_volume: * @play: a #GstPlay. * @volume: a #gfloat indicating volume level. * * Set current volume of @play. */ void gst_play_set_volume ( GstPlay *play, gfloat volume) { g_return_if_fail (play != NULL); g_return_if_fail (GST_IS_PLAY (play)); g_object_set(G_OBJECT(play->vol_dparam), "value_float", volume, NULL); } /** * gst_play_get_volume: * @play: a #GstPlay. * * Get current volume of @play. * * Returns: a #gfloat indicating current volume level. */ gfloat gst_play_get_volume (GstPlay *play) { gfloat volume; g_return_val_if_fail (play != NULL, 0); g_return_val_if_fail (GST_IS_PLAY (play), 0); g_object_get(G_OBJECT(play->vol_dparam), "value_float", &volume, NULL); return volume; } /** * gst_play_set_mute: * @play: a #GstPlay. * @mute: a #gboolean indicating wether audio is muted or not. * * Mutes/Unmutes audio playback of @play. */ void gst_play_set_mute ( GstPlay *play, gboolean mute) { g_return_if_fail (play != NULL); g_return_if_fail (GST_IS_PLAY (play)); g_object_set (G_OBJECT (play->volume), "mute", mute, NULL); } /** * gst_play_get_mute: * @play: a #GstPlay. * * Get current muted status of @play. * * Returns: a #gboolean indicating if audio is muted or not. */ gboolean gst_play_get_mute (GstPlay *play) { gboolean mute; g_return_val_if_fail (play != NULL, 0); g_return_val_if_fail (GST_IS_PLAY (play), 0); g_object_get (G_OBJECT (play->volume), "mute", &mute, NULL); return mute; } /* =========================================== */ /* */ /* Audio sink, Video sink, Data src */ /* */ /* =========================================== */ /** * gst_play_set_data_src: * @play: a #GstPlay. * @data_src: a #GstElement. * * Set @data_src as the source element of @play. * * Returns: TRUE if call succeeded. */ gboolean gst_play_set_data_src ( GstPlay *play, GstElement *data_src) { g_return_val_if_fail (play != NULL, FALSE); g_return_val_if_fail (data_src != NULL, FALSE); g_return_val_if_fail (GST_IS_PLAY (play), FALSE); g_return_val_if_fail (GST_IS_ELEMENT (data_src), FALSE); if (gst_play_get_state (play) != GST_STATE_READY){ gst_play_set_state (play, GST_STATE_READY); } if (play->set_data_src){ return play->set_data_src(play, data_src); } /* if there is no set_data_src func, fail quietly */ return FALSE; } /** * gst_play_set_video_sink: * @play: a #GstPlay. * @video_sink: a #GstElement. * * Set @video_sink as the video sink element of @play. * * Returns: TRUE if call succeeded. */ gboolean gst_play_set_video_sink ( GstPlay *play, GstElement *video_sink) { g_return_val_if_fail (play != NULL, FALSE); g_return_val_if_fail (video_sink != NULL, FALSE); g_return_val_if_fail (GST_IS_PLAY (play), FALSE); g_return_val_if_fail (GST_IS_ELEMENT (video_sink), FALSE); if (gst_play_get_state (play) != GST_STATE_READY){ gst_play_set_state (play, GST_STATE_READY); } if (play->set_video_sink){ return play->set_video_sink(play, video_sink); } /* if there is no set_video_sink func, fail quietly */ return FALSE; } /** * gst_play_set_audio_sink: * @play: a #GstPlay. * @audio_sink: a #GstElement. * * Set @audio_sink as the audio sink element of @play. * * Returns: TRUE if call succeeded. */ gboolean gst_play_set_audio_sink ( GstPlay *play, GstElement *audio_sink) { g_return_val_if_fail (play != NULL, FALSE); g_return_val_if_fail (audio_sink != NULL, FALSE); g_return_val_if_fail (GST_IS_PLAY (play), FALSE); g_return_val_if_fail (GST_IS_ELEMENT (audio_sink), FALSE); if (gst_play_get_state (play) != GST_STATE_READY){ gst_play_set_state (play, GST_STATE_READY); } if (play->set_audio_sink){ return play->set_audio_sink(play, audio_sink); } /* if there is no set_audio_sink func, fail quietly */ return FALSE; } /* =========================================== */ /* */ /* Object typing & Creation */ /* */ /* =========================================== */ GType gst_play_get_type (void) { static GType play_type = 0; if (!play_type) { static const GTypeInfo play_info = { sizeof (GstPlayClass), (GBaseInitFunc) NULL, (GBaseFinalizeFunc) NULL, (GClassInitFunc) gst_play_class_init, NULL, NULL, sizeof (GstPlay), 0, (GInstanceInitFunc) gst_play_init, NULL }; play_type = g_type_register_static (G_TYPE_OBJECT, "GstPlay", &play_info, 0); } return play_type; } GstPlay * gst_play_new ( GstPlayPipeType pipe_type, GError **error) { GstPlay *play; play = g_object_new (GST_TYPE_PLAY, NULL); /* FIXME: looks like only VIDEO ever gets used ! */ switch (pipe_type){ case GST_PLAY_PIPE_VIDEO: play->setup_pipeline = gst_play_video_setup; play->teardown_pipeline = NULL; play->set_data_src = gst_play_video_set_data_src; play->set_autoplugger = gst_play_video_set_auto; play->set_video_sink = gst_play_video_set_video; play->set_audio_sink = gst_play_video_set_audio; break; case GST_PLAY_PIPE_VIDEO_VISUALISATION: play->setup_pipeline = gst_play_video_vis_setup; play->teardown_pipeline = NULL; play->set_data_src = gst_play_video_set_data_src; play->set_autoplugger = gst_play_video_set_auto; play->set_video_sink = gst_play_video_vis_set_video; play->set_audio_sink = gst_play_video_vis_set_audio; break; case GST_PLAY_PIPE_AUDIO: /* we can reuse the threaded set functions */ play->setup_pipeline = gst_play_audio_setup; play->teardown_pipeline = NULL; play->set_data_src = gst_play_simple_set_data_src; play->set_autoplugger = gst_play_audiot_set_auto; play->set_video_sink = NULL; play->set_audio_sink = gst_play_audiot_set_audio; break; case GST_PLAY_PIPE_AUDIO_THREADED: play->setup_pipeline = gst_play_audiot_setup; play->teardown_pipeline = NULL; play->set_data_src = gst_play_simple_set_data_src; play->set_autoplugger = gst_play_audiot_set_auto; play->set_video_sink = NULL; play->set_audio_sink = gst_play_audiot_set_audio; break; case GST_PLAY_PIPE_AUDIO_HYPER_THREADED: play->setup_pipeline = gst_play_audioht_setup; play->teardown_pipeline = NULL; play->set_data_src = gst_play_simple_set_data_src; play->set_autoplugger = gst_play_audioht_set_auto; play->set_video_sink = NULL; play->set_audio_sink = gst_play_audioht_set_audio; break; default: g_warning("unknown pipeline type: %d\n", pipe_type); } /* init pipeline */ if ((play->setup_pipeline) && (! play->setup_pipeline (play, error))) { g_object_unref (play); return NULL; } if (play->pipeline) { /* connect to pipeline events */ g_signal_connect ( G_OBJECT (play->pipeline), "deep_notify", G_CALLBACK (callback_pipeline_deep_notify), play); g_signal_connect ( G_OBJECT (play->pipeline), "state_change", G_CALLBACK (callback_pipeline_state_change), play); g_signal_connect ( G_OBJECT (play->pipeline), "error", G_CALLBACK (callback_pipeline_error), play); } if (play->volume) { play->vol_dpman = gst_dpman_get_manager(play->volume); play->vol_dparam = gst_dpsmooth_new(G_TYPE_FLOAT); g_object_set( G_OBJECT(play->vol_dparam), "update_period", 2000000LL, NULL); g_object_set( G_OBJECT(play->vol_dparam), "slope_delta_float", 0.1F, NULL); g_object_set( G_OBJECT(play->vol_dparam), "slope_time", 10000000LL, NULL); if (!gst_dpman_attach_dparam ( play->vol_dpman, "volume", play->vol_dparam)) g_warning("could not attach dparam to volume element\n"); gst_dpman_set_mode(play->vol_dpman, "asynchronous"); gst_play_set_volume(play, 0.9); } play->signal_queue = g_async_queue_new(); return play; }