static void
stop_visualizer_cb (RBVisualizerPage *page, RBVisualizerPlugin *plugin)
{
if (plugin->visualizer == NULL) {
return;
}
if (plugin->playbin_notify_id) {
int playbin_flags;
g_object_get (plugin->playbin, "flags", &playbin_flags, NULL);
playbin_flags &= ~PLAYBIN2_FLAG_VIS;
rb_debug ("disabling vis; new playbin2 flags %d", playbin_flags);
g_object_set (plugin->playbin,
"flags", playbin_flags,
"vis-plugin", NULL,
NULL);
} else {
rb_debug ("removing visualizer bin from pipeline");
rb_player_gst_tee_remove_tee (RB_PLAYER_GST_TEE (plugin->player),
plugin->visualizer);
}
if (plugin->visualizer) {
g_object_unref (plugin->visualizer);
plugin->visualizer = NULL;
}
}
static void
really_remove_tee (GstPad *pad, gboolean blocked, RBGstPipelineOp *op)
{
GstElement *bin;
GstElement *parent;
rb_debug ("really removing tee %p", op->element);
_rb_player_gst_tee_emit_tee_pre_remove (RB_PLAYER_GST_TEE (op->player), op->element);
/* find bin, remove everything */
bin = GST_ELEMENT_PARENT (op->element);
g_object_ref (bin);
parent = GST_ELEMENT_PARENT (bin);
gst_bin_remove (GST_BIN (parent), bin);
gst_element_set_state (bin, GST_STATE_NULL);
gst_bin_remove (GST_BIN (bin), op->element);
g_object_unref (bin);
/* if we're supposed to be playing, unblock the sink */
if (blocked) {
rb_debug ("unblocking pad after removing tee");
gst_pad_set_blocked_async (pad, FALSE, (GstPadBlockCallback)pipeline_op_done, NULL);
}
free_pipeline_op (op);
}
static void
really_add_tee (GstPad *pad, gboolean blocked, RBGstPipelineOp *op)
{
GstElement *queue;
GstElement *audioconvert;
GstElement *bin;
GstElement *parent_bin;
GstPad *sinkpad;
GstPad *ghostpad;
rb_debug ("really adding tee %p", op->element);
/* set up containing bin */
bin = gst_bin_new (NULL);
queue = gst_element_factory_make ("queue", NULL);
audioconvert = gst_element_factory_make ("audioconvert", NULL);
/* The bin contains elements that change state asynchronously
* and not as part of a state change in the entire pipeline.
*/
g_object_set (bin, "async-handling", TRUE, NULL);
g_object_set (queue, "max-size-buffers", 3, NULL);
gst_bin_add_many (GST_BIN (bin), queue, audioconvert, op->element, NULL);
gst_element_link_many (queue, audioconvert, op->element, NULL);
/* add ghost pad */
sinkpad = gst_element_get_static_pad (queue, "sink");
ghostpad = gst_ghost_pad_new ("sink", sinkpad);
gst_element_add_pad (bin, ghostpad);
gst_object_unref (sinkpad);
/* add it into the pipeline */
parent_bin = GST_ELEMENT_PARENT (op->fixture);
gst_bin_add (GST_BIN (parent_bin), bin);
gst_element_link (op->fixture, bin);
/* if we're supposed to be playing, unblock the sink */
if (blocked) {
rb_debug ("unblocking pad after adding tee");
gst_element_set_state (parent_bin, GST_STATE_PLAYING);
gst_object_ref (ghostpad);
gst_pad_set_blocked_async (pad,
FALSE,
(GstPadBlockCallback)pipeline_op_done,
ghostpad);
} else {
gst_element_set_state (bin, GST_STATE_PAUSED);
gst_object_ref (ghostpad);
pipeline_op_done (NULL, FALSE, ghostpad);
}
_rb_player_gst_tee_emit_tee_inserted (RB_PLAYER_GST_TEE (op->player), op->element);
free_pipeline_op (op);
}
static void
start_visualizer_cb (RBVisualizerPage *page, RBVisualizerPlugin *plugin)
{
GstPad *pad;
char *plugin_name;
if (plugin->visualizer) {
g_object_unref (plugin->visualizer);
plugin->visualizer = NULL;
plugin->identity = NULL;
plugin->capsfilter = NULL;
plugin->vis_plugin = NULL;
}
plugin->visualizer = gst_bin_new (NULL);
/* create common bits of visualizer bin: identity ! <effect> ! capsfilter */
plugin->identity = gst_element_factory_make ("identity", NULL);
plugin->capsfilter = gst_element_factory_make ("capsfilter", NULL);
plugin_name = g_settings_get_string (plugin->settings, "vis-plugin");
if (plugin_name != NULL) {
plugin->vis_plugin = gst_element_factory_make (plugin_name, NULL);
if (plugin->vis_plugin == NULL) {
g_warning ("Configured visualizer plugin %s not available", plugin_name);
}
g_free (plugin_name);
}
if (plugin->vis_plugin == NULL) {
plugin->vis_plugin = gst_element_factory_make ("goom", NULL);
if (plugin->vis_plugin == NULL) {
g_warning ("Fallback visualizer plugin (goom) not available");
return;
}
}
/* set up capsfilter */
gst_bin_add_many (GST_BIN (plugin->visualizer), plugin->identity, plugin->vis_plugin, plugin->capsfilter, NULL);
pad = gst_element_get_static_pad (plugin->identity, "sink");
gst_element_add_pad (plugin->visualizer, gst_ghost_pad_new ("sink", pad));
gst_object_unref (pad);
/* XXX check errors etc. */
if (gst_element_link_many (plugin->identity, plugin->vis_plugin, plugin->capsfilter, NULL) == FALSE) {
g_warning ("couldn't link visualizer bin elements");
return;
}
fixate_vis_caps (plugin);
g_object_ref (plugin->visualizer);
if (plugin->playbin_notify_id) {
GstPad *pad;
int playbin_flags;
pad = gst_element_get_static_pad (plugin->capsfilter, "src");
gst_element_add_pad (plugin->visualizer, gst_ghost_pad_new ("src", pad));
gst_object_unref (pad);
g_object_get (plugin->playbin, "flags", &playbin_flags, NULL);
if (plugin->playbin != NULL) {
playbin_flags |= PLAYBIN2_FLAG_VIS;
rb_debug ("enabling vis; new playbin2 flags %x", playbin_flags);
g_object_set (plugin->playbin,
"vis-plugin", plugin->visualizer,
"flags", playbin_flags,
NULL);
} else {
rb_debug ("playback hasn't started yet");
}
} else {
GstElement *colorspace;
GstElement *queue;
colorspace = gst_element_factory_make ("ffmpegcolorspace", NULL);
queue = gst_element_factory_make ("queue", NULL);
g_object_set (queue, "max-size-buffers", 3, "max-size-bytes", 0, "max-size-time", (gint64) 0, NULL);
gst_bin_add_many (GST_BIN (plugin->visualizer), queue, colorspace, plugin->sink, NULL);
gst_element_link_many (plugin->capsfilter, queue, colorspace, plugin->sink, NULL);
rb_debug ("adding visualizer bin to the pipeline");
rb_player_gst_tee_add_tee (RB_PLAYER_GST_TEE (plugin->player),
plugin->visualizer);
}
}
static gboolean
construct_pipeline (RBPlayerGst *mp, GError **error)
{
GstElement *sink;
mp->priv->playbin = gst_element_factory_make ("playbin2", NULL);
if (mp->priv->playbin == NULL) {
g_set_error (error,
RB_PLAYER_ERROR,
RB_PLAYER_ERROR_GENERAL,
_("Failed to create playbin2 element; check your GStreamer installation"));
return FALSE;
}
g_signal_connect_object (G_OBJECT (mp->priv->playbin),
"about-to-finish",
G_CALLBACK (about_to_finish_cb),
mp, 0);
g_signal_connect_object (G_OBJECT (mp->priv->playbin),
"deep-notify::volume",
G_CALLBACK (volume_notify_cb),
mp, 0);
g_signal_connect_object (G_OBJECT (mp->priv->playbin),
"notify::source",
G_CALLBACK (source_notify_cb),
mp, 0);
gst_bus_add_watch (gst_element_get_bus (mp->priv->playbin),
(GstBusFunc) bus_cb,
mp);
/* let plugins add bits to playbin */
g_object_notify (G_OBJECT (mp), "playbin");
g_object_notify (G_OBJECT (mp), "bus");
/* Use gsettingsaudiosink for audio if there's no audio sink yet */
g_object_get (mp->priv->playbin, "audio-sink", &mp->priv->audio_sink, NULL);
if (mp->priv->audio_sink == NULL) {
const char *try_sinks[] = { "gsettingsaudiosink", "gconfaudiosink", "autoaudiosink" };
int i;
for (i = 0; i < G_N_ELEMENTS (try_sinks); i++) {
mp->priv->audio_sink = rb_player_gst_try_audio_sink (try_sinks[i], NULL);
if (mp->priv->audio_sink != NULL) {
g_object_set (mp->priv->playbin, "audio-sink", mp->priv->audio_sink, NULL);
break;
}
}
} else {
rb_debug ("existing audio sink found");
g_object_unref (mp->priv->audio_sink);
}
{
GstPad *pad;
GList *l;
GstElement *queue;
GstPad *ghostpad;
/* setup filterbin */
mp->priv->filterbin = rb_gst_create_filter_bin ();
/* set up the sinkbin with its tee element */
mp->priv->sinkbin = gst_bin_new (NULL);
mp->priv->tee = gst_element_factory_make ("tee", NULL);
queue = gst_element_factory_make ("queue", NULL);
/* link it all together and insert */
gst_bin_add_many (GST_BIN (mp->priv->sinkbin), mp->priv->filterbin, mp->priv->tee, queue, mp->priv->audio_sink, NULL);
gst_element_link_many (mp->priv->filterbin, mp->priv->tee, queue, mp->priv->audio_sink, NULL);
pad = gst_element_get_pad (mp->priv->filterbin, "sink");
ghostpad = gst_ghost_pad_new ("sink", pad);
gst_element_add_pad (mp->priv->sinkbin, ghostpad);
gst_object_unref (pad);
g_object_set (G_OBJECT (mp->priv->playbin), "audio-sink", mp->priv->sinkbin, NULL);
/* add any tees and filters that were waiting for us */
for (l = mp->priv->waiting_tees; l != NULL; l = g_list_next (l)) {
rb_player_gst_tee_add_tee (RB_PLAYER_GST_TEE (mp), GST_ELEMENT (l->data));
}
g_list_free (mp->priv->waiting_tees);
mp->priv->waiting_tees = NULL;
for (l = mp->priv->waiting_filters; l != NULL; l = g_list_next (l)) {
rb_player_gst_filter_add_filter (RB_PLAYER_GST_FILTER(mp), GST_ELEMENT (l->data));
}
g_list_free (mp->priv->waiting_filters);
mp->priv->waiting_filters = NULL;
}
/* Use fakesink for video if there's no video sink yet */
g_object_get (mp->priv->playbin, "video-sink", &sink, NULL);
if (sink == NULL) {
sink = gst_element_factory_make ("fakesink", NULL);
g_object_set (mp->priv->playbin, "video-sink", sink, NULL);
} else {
g_object_unref (sink);
}
if (mp->priv->cur_volume > 1.0)
mp->priv->cur_volume = 1.0;
if (mp->priv->cur_volume < 0.0)
mp->priv->cur_volume = 0;
rb_debug ("pipeline construction complete");
return TRUE;
}
