G_MODULE_EXPORT gboolean
preview_draw_cb(
GtkWidget *widget,
cairo_t *cr,
signal_user_data_t *ud)
{
#if defined(_ENABLE_GST)
#if GST_CHECK_VERSION(1, 0, 0)
if (ud->preview->live_enabled && ud->preview->state == PREVIEW_STATE_LIVE)
{
if (GST_STATE(ud->preview->play) >= GST_STATE_PAUSED)
{
GstElement *vsink;
GstVideoOverlay *vover;
g_object_get(ud->preview->play, "video-sink", &vsink, NULL);
if (GST_IS_BIN(vsink))
vover = GST_VIDEO_OVERLAY(gst_bin_get_by_interface(
GST_BIN(vsink), GST_TYPE_VIDEO_OVERLAY));
else
vover = GST_VIDEO_OVERLAY(vsink);
gst_video_overlay_expose(vover);
// For some reason, the exposed region doesn't always get
// cleaned up here. But a delayed gst_x_overlay_expose()
// takes care of it.
g_idle_add((GSourceFunc)delayed_expose_cb, ud);
}
return FALSE;
}
#else
if (ud->preview->live_enabled && ud->preview->state == PREVIEW_STATE_LIVE)
{
if (GST_STATE(ud->preview->play) >= GST_STATE_PAUSED)
{
GstElement *vsink;
GstXOverlay *xover;
g_object_get(ud->preview->play, "video-sink", &vsink, NULL);
if (GST_IS_BIN(vsink))
xover = GST_X_OVERLAY(gst_bin_get_by_interface(
GST_BIN(vsink), GST_TYPE_X_OVERLAY));
else
xover = GST_X_OVERLAY(vsink);
gst_x_overlay_expose(xover);
// For some reason, the exposed region doesn't always get
// cleaned up here. But a delayed gst_x_overlay_expose()
// takes care of it.
g_idle_add((GSourceFunc)delayed_expose_cb, ud);
}
return FALSE;
}
#endif
#endif
if (ud->preview->pix != NULL)
{
_draw_pixbuf(cr, ud->preview->pix);
}
return FALSE;
}
EXPORT_C
#endif
void
_gst_debug_bin_to_dot_file_with_ts (GstBin * bin, GstDebugGraphDetails details,
const gchar * file_name)
{
gchar *ts_file_name = NULL;
GstClockTime elapsed;
g_return_if_fail (GST_IS_BIN (bin));
if (!file_name) {
file_name = g_get_application_name ();
if (!file_name)
file_name = "unnamed";
}
/* add timestamp */
elapsed = GST_CLOCK_DIFF (_priv_gst_info_start_time,
gst_util_get_timestamp ());
ts_file_name =
g_strdup_printf ("%" GST_TIME_FORMAT "-%s", GST_TIME_ARGS (elapsed),
file_name);
_gst_debug_bin_to_dot_file (bin, details, ts_file_name);
g_free (ts_file_name);
}
void _bp_dvd_find_navigation (BansheePlayer *player)
{
GstElement *video_sink = NULL;
GstElement *navigation = NULL;
GstNavigation *previous_navigation;
previous_navigation = player->navigation;
g_object_get (player->playbin, "video-sink", &video_sink, NULL);
if (video_sink == NULL) {
player->navigation = NULL;
if (previous_navigation != NULL) {
gst_object_unref (previous_navigation);
}
}
navigation = GST_IS_BIN (video_sink)
? gst_bin_get_by_interface (GST_BIN (video_sink), GST_TYPE_NAVIGATION)
: video_sink;
player->navigation = GST_IS_NAVIGATION (navigation) ? GST_NAVIGATION (navigation) : NULL;
if (previous_navigation != NULL) {
gst_object_unref (previous_navigation);
}
gst_object_unref (video_sink);
}
void
BasePlatformInterface::PrepareVideoWindow(GstMessage *aMessage)
{
GstElement *element = NULL;
GstXOverlay *xoverlay = NULL;
if (GST_IS_BIN (mVideoSink)) {
/* Get the actual implementing object from the bin */
element = gst_bin_get_by_interface(GST_BIN (mVideoSink),
GST_TYPE_X_OVERLAY);
}
else {
element = mVideoSink;
}
if (GST_IS_X_OVERLAY (element)) {
xoverlay = GST_X_OVERLAY (element);
LOG(("xoverlay interface found, setting video window"));
}
else {
LOG(("No xoverlay interface found, cannot set video window"));
return;
}
SetXOverlayWindowID(xoverlay);
ResizeToWindow();
}
static guint
watch_container (InsanityGstPipelineTest * ptest, GstBin * bin)
{
GstIterator *it;
gboolean done = FALSE;
GValue data = { 0, };
GstElement *e;
it = gst_bin_iterate_elements (bin);
while (!done) {
switch (gst_iterator_next (it, &data)) {
case GST_ITERATOR_OK:
e = GST_ELEMENT_CAST (g_value_get_object (&data));
add_element_used (ptest, e);
if (GST_IS_BIN (e)) {
watch_container (ptest, GST_BIN (e));
}
g_value_reset (&data);
break;
case GST_ITERATOR_RESYNC:
gst_iterator_resync (it);
break;
case GST_ITERATOR_DONE:
default:
done = TRUE;
break;
}
}
g_value_unset (&data);
gst_iterator_free (it);
return g_signal_connect (bin, "element-added", (GCallback) on_element_added,
ptest);
}
/*
* gst_debug_bin_to_dot_file_with_ts:
* @bin: the top-level pipeline that should be analyzed
* @file_name: output base filename (e.g. "myplayer")
*
* This works like gst_debug_bin_to_dot_file(), but adds the current timestamp
* to the filename, so that it can be used to take multiple snapshots.
*/
void
gst_debug_bin_to_dot_file_with_ts (GstBin * bin,
GstDebugGraphDetails details, const gchar * file_name)
{
gchar *ts_file_name = NULL;
GstClockTime elapsed;
g_return_if_fail (GST_IS_BIN (bin));
if (!file_name) {
file_name = g_get_application_name ();
if (!file_name)
file_name = "unnamed";
}
/* add timestamp */
elapsed = GST_CLOCK_DIFF (_priv_gst_info_start_time,
gst_util_get_timestamp ());
/* we don't use GST_TIME_FORMAT as such filenames would fail on some
* filesystems like fat */
ts_file_name =
g_strdup_printf ("%u.%02u.%02u.%09u-%s", GST_TIME_ARGS (elapsed),
file_name);
gst_debug_bin_to_dot_file (bin, details, ts_file_name);
g_free (ts_file_name);
}
static CoglGstVideoSink *
find_cogl_gst_video_sink (GstElement *element)
{
GstElement *sink_element = NULL;
GstIterator *iterator;
GstElement *iterator_value;
GValue value;
if (!GST_IS_BIN (element))
return NULL;
iterator = gst_bin_iterate_recurse (GST_BIN (element));
g_value_init (&value, GST_TYPE_ELEMENT);
while (gst_iterator_next (iterator, &value) == GST_ITERATOR_OK)
{
iterator_value = g_value_get_object (&value);
g_value_reset (&value);
if (COGL_GST_IS_VIDEO_SINK (iterator_value))
{
sink_element = iterator_value;
break;
}
}
g_value_unset (&value);
gst_iterator_free (iterator);
return COGL_GST_VIDEO_SINK (sink_element);
}
//FIXME this should be part of the library
void
shmdata_base_reader_clean_element (GstElement *element)
{
if (element != NULL && GST_IS_ELEMENT(element)
&& GST_STATE_CHANGE_FAILURE != GST_STATE_RETURN(element)) {
{ // unlinking pads
GstIterator *pad_iter = gst_element_iterate_pads(element);
gst_iterator_foreach(pad_iter, (GFunc) shmdata_base_reader_unlink_pad, NULL);
gst_iterator_free(pad_iter);
}
{ // releasing request pads
GstIterator *pad_iter = gst_element_iterate_pads(element);
gst_iterator_foreach(pad_iter,
(GFunc) shmdata_base_reader_release_request_pad,
element);
gst_iterator_free(pad_iter);
}
GstState state = GST_STATE_TARGET(element);
if (state != GST_STATE_NULL) {
if (GST_STATE_CHANGE_ASYNC ==
gst_element_set_state(element, GST_STATE_NULL)) {
while (GST_STATE(element) != GST_STATE_NULL) {
// warning this may be blocking
gst_element_get_state(element, NULL, NULL,
GST_CLOCK_TIME_NONE);
}
}
}
if (GST_IS_BIN(gst_element_get_parent(element)))
gst_bin_remove(GST_BIN(gst_element_get_parent(element)), element);
else
gst_object_unref(element);
}
}
static gboolean
bus_callback (GstBus * bus, GstMessage * message, gpointer data)
{
switch (GST_MESSAGE_TYPE (message)) {
case GST_MESSAGE_ERROR:{
GError *err;
gchar *debug;
gst_message_parse_error (message, &err, &debug);
g_print ("Error: %s\n", err->message);
g_error_free (err);
g_free (debug);
/* Write debug graph to file */
GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS (GST_BIN (camerabin),
GST_DEBUG_GRAPH_SHOW_ALL, "camerabin.error");
g_main_loop_quit (loop);
break;
}
case GST_MESSAGE_STATE_CHANGED:
if (GST_IS_BIN (GST_MESSAGE_SRC (message))) {
GstState oldstate, newstate;
gst_message_parse_state_changed (message, &oldstate, &newstate, NULL);
GST_DEBUG_OBJECT (GST_MESSAGE_SRC (message), "state-changed: %s -> %s",
gst_element_state_get_name (oldstate),
gst_element_state_get_name (newstate));
}
break;
case GST_MESSAGE_EOS:
/* end-of-stream */
GST_INFO ("got eos() - should not happen");
g_main_loop_quit (loop);
break;
case GST_MESSAGE_ELEMENT:
if (GST_MESSAGE_SRC (message) == (GstObject *) camerabin) {
const GstStructure *structure = gst_message_get_structure (message);
if (gst_structure_has_name (structure, "image-done")) {
#ifndef GST_DISABLE_GST_DEBUG
const gchar *fname = gst_structure_get_string (structure, "filename");
GST_DEBUG ("image done: %s", fname);
#endif
if (capture_count < capture_total) {
g_idle_add ((GSourceFunc) run_pipeline, NULL);
} else {
g_main_loop_quit (loop);
}
}
}
break;
default:
/* unhandled message */
break;
}
return TRUE;
}
static void
on_element_added (GstElement * bin, GstElement * element,
InsanityGstPipelineTest * ptest)
{
add_element_used (ptest, element);
if (GST_IS_BIN (element))
watch_container (ptest, GST_BIN (element));
}
static void
log_new_element_stats (GstElementStats * stats, GstElement * element,
GstClockTime elapsed)
{
gst_tracer_record_log (tr_new_element, (guint64) (guintptr) g_thread_self (),
elapsed, stats->index, stats->parent_ix, GST_OBJECT_NAME (element),
G_OBJECT_TYPE_NAME (element), GST_IS_BIN (element));
}
void
fs_element_added_notifier_add (FsElementAddedNotifier *notifier,
GstBin *bin)
{
g_return_if_fail (notifier && FS_IS_ELEMENT_ADDED_NOTIFIER (notifier));
g_return_if_fail (bin && GST_IS_BIN (bin));
_element_added_callback (NULL, GST_ELEMENT_CAST (bin), notifier);
}
static gboolean
gst_validate_bin_monitor_setup (GstValidateMonitor * monitor)
{
GstIterator *iterator;
gboolean done;
GstElement *element;
GstValidateBinMonitor *bin_monitor = GST_VALIDATE_BIN_MONITOR_CAST (monitor);
GstBin *bin = GST_VALIDATE_BIN_MONITOR_GET_BIN (bin_monitor);
if (!GST_IS_BIN (bin)) {
GST_WARNING_OBJECT (monitor, "Trying to create bin monitor with other "
"type of object");
return FALSE;
}
GST_DEBUG_OBJECT (bin_monitor, "Setting up monitor for bin %" GST_PTR_FORMAT,
bin);
if (g_object_get_data ((GObject *) bin, "validate-monitor")) {
GST_DEBUG_OBJECT (bin_monitor,
"Bin already has a validate-monitor associated");
return FALSE;
}
bin_monitor->element_added_id =
g_signal_connect (bin, "element-added",
G_CALLBACK (_validate_bin_element_added), monitor);
iterator = gst_bin_iterate_elements (bin);
done = FALSE;
while (!done) {
GValue value = { 0, };
switch (gst_iterator_next (iterator, &value)) {
case GST_ITERATOR_OK:
element = g_value_get_object (&value);
gst_validate_bin_monitor_wrap_element (bin_monitor, element);
g_value_reset (&value);
break;
case GST_ITERATOR_RESYNC:
/* TODO how to handle this? */
gst_iterator_resync (iterator);
break;
case GST_ITERATOR_ERROR:
done = TRUE;
break;
case GST_ITERATOR_DONE:
done = TRUE;
break;
}
}
gst_iterator_free (iterator);
return TRUE;
}
static void
calculate_latency (GstElement * parent, GstPad * pad, guint64 ts)
{
if (parent && (!GST_IS_BIN (parent)) &&
GST_OBJECT_FLAG_IS_SET (parent, GST_ELEMENT_FLAG_SINK)) {
GstEvent *ev = g_object_get_qdata ((GObject *) pad, latency_probe_id);
log_latency (gst_event_get_structure (ev), pad, ts);
gst_event_unref (ev);
}
}
gboolean
shmdata_base_reader_set_bin (shmdata_base_reader_t * reader, GstElement *bin)
{
if (!GST_IS_BIN (bin))
{
g_warning ("base reader: not a bin");
return FALSE;
}
reader->bin_ = bin;
return TRUE;
}
static void
gst_wrapper_camera_bin_reset_video_src_caps (GstWrapperCameraBinSrc * self,
GstCaps * caps)
{
GstClock *clock;
gint64 base_time;
GST_DEBUG_OBJECT (self, "Resetting src caps to %" GST_PTR_FORMAT, caps);
if (self->src_vid_src) {
clock = gst_element_get_clock (self->src_vid_src);
base_time = gst_element_get_base_time (self->src_vid_src);
gst_element_set_state (self->src_vid_src, GST_STATE_READY);
set_capsfilter_caps (self, caps);
self->drop_newseg = TRUE;
GST_DEBUG_OBJECT (self, "Bringing source up");
gst_element_sync_state_with_parent (self->src_vid_src);
if (clock) {
gst_element_set_clock (self->src_vid_src, clock);
gst_element_set_base_time (self->src_vid_src, base_time);
if (GST_IS_BIN (self->src_vid_src)) {
GstIterator *it =
gst_bin_iterate_elements (GST_BIN (self->src_vid_src));
gpointer item = NULL;
gboolean done = FALSE;
while (!done) {
switch (gst_iterator_next (it, &item)) {
case GST_ITERATOR_OK:
gst_element_set_base_time (GST_ELEMENT (item), base_time);
gst_object_unref (item);
break;
case GST_ITERATOR_RESYNC:
gst_iterator_resync (it);
break;
case GST_ITERATOR_ERROR:
done = TRUE;
break;
case GST_ITERATOR_DONE:
done = TRUE;
break;
}
}
gst_iterator_free (it);
}
gst_object_unref (clock);
}
}
}
static void
_element_added_callback (GstBin *parent, GstElement *element,
gpointer user_data)
{
FsElementAddedNotifier *notifier = FS_ELEMENT_ADDED_NOTIFIER (user_data);
if (GST_IS_BIN (element)) {
GstIterator *iter = NULL;
gboolean done;
g_signal_connect_object (element, "element-added",
G_CALLBACK (_element_added_callback), notifier, 0);
if (parent)
g_signal_connect_object (element, "parent-unset",
G_CALLBACK (_bin_unparented_cb), notifier, 0);
iter = gst_bin_iterate_elements (GST_BIN (element));
done = FALSE;
while (!done)
{
gpointer item = NULL;
switch (gst_iterator_next (iter, &item)) {
case GST_ITERATOR_OK:
/* We make sure the callback has not already been added */
if (g_signal_handler_find (item,
G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA,
0, 0, NULL, /* id, detail, closure */
_element_added_callback, notifier) == 0)
_element_added_callback (GST_BIN_CAST (element), item, notifier);
gst_object_unref (item);
break;
case GST_ITERATOR_RESYNC:
// We don't rollback anything, we just ignore already processed ones
gst_iterator_resync (iter);
break;
case GST_ITERATOR_ERROR:
g_error ("Wrong parameters were given?");
done = TRUE;
break;
case GST_ITERATOR_DONE:
done = TRUE;
break;
}
}
gst_iterator_free (iter);
}
g_signal_emit (notifier, signals[ELEMENT_ADDED], 0, parent, element);
}
static void
log_new_element_stats (GstElementStats * stats, GstElement * element,
GstClockTime elapsed)
{
gst_tracer_log_trace (gst_structure_new ("new-element",
"thread-id", G_TYPE_UINT, GPOINTER_TO_UINT (g_thread_self ()),
"ts", G_TYPE_UINT64, elapsed,
"ix", G_TYPE_UINT, stats->index,
"parent-ix", G_TYPE_UINT, stats->parent_ix,
"name", G_TYPE_STRING, GST_OBJECT_NAME (element),
"type", G_TYPE_STRING, G_OBJECT_TYPE_NAME (element),
"is-bin", G_TYPE_BOOLEAN, GST_IS_BIN (element), NULL));
}
static void
send_latency_probe (GstElement * parent, GstPad * pad, guint64 ts)
{
if (parent && (!GST_IS_BIN (parent)) &&
GST_OBJECT_FLAG_IS_SET (parent, GST_ELEMENT_FLAG_SOURCE)) {
GstEvent *latency_probe = gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM,
gst_structure_new_id (latency_probe_id,
latency_probe_pad, GST_TYPE_PAD, pad,
latency_probe_ts, G_TYPE_UINT64, ts,
NULL));
gst_pad_push_event (pad, latency_probe);
}
}
static gboolean
bp_video_find_xoverlay (BansheePlayer *player)
{
GstElement *video_sink = NULL;
GstElement *xoverlay;
GstXOverlay *previous_xoverlay;
gboolean found_xoverlay;
g_object_get (player->playbin, "video-sink", &video_sink, NULL);
g_mutex_lock (player->video_mutex);
previous_xoverlay = player->xoverlay;
if (video_sink == NULL) {
player->xoverlay = NULL;
if (previous_xoverlay != NULL) {
gst_object_unref (previous_xoverlay);
}
g_mutex_unlock (player->video_mutex);
return FALSE;
}
xoverlay = GST_IS_BIN (video_sink)
? gst_bin_get_by_interface (GST_BIN (video_sink), GST_TYPE_X_OVERLAY)
: video_sink;
player->xoverlay = GST_IS_X_OVERLAY (xoverlay) ? GST_X_OVERLAY (xoverlay) : NULL;
if (previous_xoverlay != NULL) {
gst_object_unref (previous_xoverlay);
}
#if !defined(GDK_WINDOWING_WIN32) // We can't rely on aspect ratio from dshowvideosink
if (player->xoverlay != NULL && g_object_class_find_property (
G_OBJECT_GET_CLASS (player->xoverlay), "force-aspect-ratio")) {
g_object_set (G_OBJECT (player->xoverlay), "force-aspect-ratio", TRUE, NULL);
}
#endif
if (player->xoverlay != NULL && g_object_class_find_property (
G_OBJECT_GET_CLASS (player->xoverlay), "handle-events")) {
g_object_set (G_OBJECT (player->xoverlay), "handle-events", FALSE, NULL);
}
gst_object_unref (video_sink);
found_xoverlay = (player->xoverlay != NULL) ? TRUE : FALSE;
g_mutex_unlock (player->video_mutex);
return found_xoverlay;
}
static gboolean
timeout_check (gpointer pipeline)
{
if (GST_IS_BIN (pipeline)) {
gchar *timeout_file =
g_strdup_printf ("timeout-%s", GST_OBJECT_NAME (pipeline));
GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS (GST_BIN (pipeline),
GST_DEBUG_GRAPH_SHOW_ALL, timeout_file);
g_free (timeout_file);
}
return FALSE;
}
void
GstUtils::set_element_property_in_bin(GstElement *bin,
const gchar *factory_name,
const gchar *property_name,
gboolean property_value) {
if (!GST_IS_BIN(bin))
return;
if (g_list_length(GST_BIN_CHILDREN(GST_BIN(bin))) > 0) {
GList *child = nullptr, *children = GST_BIN_CHILDREN(GST_BIN(bin));
for (child = children; child != nullptr; child = g_list_next(child)) {
GstElement *current_element = GST_ELEMENT(child->data);
GstElementFactory *factory = gst_element_get_factory(current_element);
// g_print ("The '%s' element is a member of the category %s.\n"
// "Description: %s\n",
// gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (sub_factory)),
// gst_element_factory_get_klass (sub_factory),
// gst_element_factory_get_description (sub_factory));
if (g_strcmp0(factory_name,
gst_plugin_feature_get_name(GST_PLUGIN_FEATURE(factory)))
== 0) {
g_debug("GstUtils: setting property for %s", factory_name);
g_object_set(G_OBJECT(current_element), property_name,
property_value, nullptr);
}
if (GST_IS_BIN(current_element)) { // recursive
GstUtils::set_element_property_in_bin(current_element,
factory_name,
property_name,
property_value);
}
}
}
}
/*
* gst_debug_bin_to_dot_data:
* @bin: the top-level pipeline that should be analyzed
*
* To aid debugging applications one can use this method to obtain the whole
* network of gstreamer elements that form the pipeline into an dot file.
* This data can be processed with graphviz to get an image.
*
* Returns: (transfer full): a string containing the pipeline in graphviz
* dot format.
*/
gchar *
gst_debug_bin_to_dot_data (GstBin * bin, GstDebugGraphDetails details)
{
GString *str;
g_return_val_if_fail (GST_IS_BIN (bin), NULL);
str = g_string_new (NULL);
debug_dump_header (bin, details, str);
debug_dump_element (bin, details, str, 1);
debug_dump_footer (str);
return g_string_free (str, FALSE);
}
void GstUtils::clean_element(GstElement *element) {
if (nullptr == element)
return;
if (!GST_IS_ELEMENT(element)) {
g_warning("%s failed (not a gst element)", __FUNCTION__);
return;
}
if (GST_STATE_CHANGE_FAILURE == GST_STATE_RETURN(element)) {
g_warning("%s failed (state error)", __FUNCTION__);
return;
}
// if (GST_IS_BIN(element))
// g_debug("%d, %d, %d, state return %d", GST_STATE(element),
// GST_STATE_TARGET(element), GST_STATE_PENDING(element),
// GST_STATE_RETURN(element));
// FIXME { // unlinking pads
// GstIterator *pad_iter;
// pad_iter = gst_element_iterate_pads(element);
// gst_iterator_foreach(pad_iter, (GFunc) GstUtils::unlink_pad, nullptr);
// gst_iterator_free(pad_iter);
// }
// FIXME { // releasing request pads
// GstIterator *pad_iter;
// pad_iter = gst_element_iterate_pads(element);
// gst_iterator_foreach(pad_iter, (GFunc) GstUtils::release_request_pad, element);
// gst_iterator_free(pad_iter);
// }
// GstState state = GST_STATE_TARGET(element);
// if (state != GST_STATE_NULL) {
// if (GST_STATE_CHANGE_ASYNC ==
// gst_element_set_state(element, GST_STATE_NULL)) {
// while (GST_STATE(element) != GST_STATE_NULL) {
// // warning this may be blocking
// gst_element_get_state(element, nullptr, nullptr,
// GST_CLOCK_TIME_NONE);
// }
// }
// }
// if (GST_IS_BIN(gst_element_get_parent(element)))
// gst_bin_remove(GST_BIN(gst_element_get_parent(element)), element);
// else
if (!GST_IS_BIN(gst_element_get_parent(element))
&& ((GObject *) element)->ref_count > 0)
gst_object_unref(element);
}
static void
fps_display_sink_update_sink_sync (GstFPSDisplaySink * self)
{
GstIterator *iterator;
if (self->video_sink == NULL)
return;
if (GST_IS_BIN (self->video_sink)) {
iterator = gst_bin_iterate_sinks (GST_BIN (self->video_sink));
gst_iterator_foreach (iterator, (GFunc) update_sub_sync,
(void *) &self->sync);
gst_iterator_free (iterator);
} else
update_sub_sync (self->video_sink, (void *) &self->sync);
}
static void
print_element_flag_info (GstElement * element)
{
gboolean have_flags = FALSE;
n_print ("\n");
n_print ("Element Flags:\n");
if (!have_flags)
n_print (" no flags set\n");
if (GST_IS_BIN (element)) {
n_print ("\n");
n_print ("Bin Flags:\n");
if (!have_flags)
n_print (" no flags set\n");
}
}
static GstElement *
get_sink_element (GstBin * bin)
{
GstElement *e;
GList *node;
GST_INFO_OBJECT (bin, "looking for audio_sink");
for (node = GST_BIN_CHILDREN (bin); node; node = g_list_next (node)) {
e = (GstElement *) node->data;
if (GST_IS_BIN (e) && GST_OBJECT_FLAG_IS_SET (e, GST_ELEMENT_FLAG_SINK)) {
return get_sink_element ((GstBin *) e);
}
if (GST_OBJECT_FLAG_IS_SET (e, GST_ELEMENT_FLAG_SINK)) {
return e;
}
}
return NULL;
}
static void hook_element (GstElement *elem, PipelineChangeListenerContext *ctx)
{
GstIterator *itr;
gpointer item;
/* check if we've already examined this element, to prevent loops: */
if (!already_visited (ctx->visited_nodes, elem))
{
GST_INFO_OBJECT (elem, "");
g_signal_connect (elem, "pad-added", (GCallback)pad_added, ctx);
/* Since it is likely that some pads are already hooked, let's iterate them
* (since there will be no pad-added signal for them) and simulate the
* the missed signal
*
* XXX here we probably should do something sane if the underlying data
* structure changes as we iterate.. hmm
*/
for( itr = gst_element_iterate_pads (elem);
gst_iterator_next (itr, &item) == GST_ITERATOR_OK;
gst_object_unref (item) )
{
pad_added (elem, GST_PAD(item), ctx);
}
gst_iterator_free (itr);
/* in case this elem is a bin, we need to hook all the elements within
* the bin too:
*/
if( GST_IS_BIN (elem) )
{
for( itr = gst_bin_iterate_elements (GST_BIN (elem));
gst_iterator_next (itr, &item) == GST_ITERATOR_OK;
gst_object_unref (item) )
{
hook_element (GST_ELEMENT (item), ctx);
}
gst_iterator_free (itr);
}
ctx->needs_cb = TRUE;
}
}
/* slightly convoluted way to find a working video sink that's not a bin,
* one could use autovideosink from gst-plugins-good instead
*/
static GstElement *
find_video_sink (void)
{
GstStateChangeReturn sret;
GstElement *sink;
if ((sink = gst_element_factory_make ("xvimagesink", NULL))) {
sret = gst_element_set_state (sink, GST_STATE_READY);
if (sret == GST_STATE_CHANGE_SUCCESS)
return sink;
gst_element_set_state (sink, GST_STATE_NULL);
}
gst_object_unref (sink);
if ((sink = gst_element_factory_make ("ximagesink", NULL))) {
sret = gst_element_set_state (sink, GST_STATE_READY);
if (sret == GST_STATE_CHANGE_SUCCESS)
return sink;
gst_element_set_state (sink, GST_STATE_NULL);
}
gst_object_unref (sink);
if (strcmp (DEFAULT_VIDEOSINK, "xvimagesink") == 0 ||
strcmp (DEFAULT_VIDEOSINK, "ximagesink") == 0)
return NULL;
if ((sink = gst_element_factory_make (DEFAULT_VIDEOSINK, NULL))) {
if (GST_IS_BIN (sink)) {
gst_object_unref (sink);
return NULL;
}
sret = gst_element_set_state (sink, GST_STATE_READY);
if (sret == GST_STATE_CHANGE_SUCCESS)
return sink;
gst_element_set_state (sink, GST_STATE_NULL);
}
gst_object_unref (sink);
return NULL;
}
static void
print_children_info (GstElement * element)
{
GList *children;
if (!GST_IS_BIN (element))
return;
children = (GList *) GST_BIN (element)->children;
if (children) {
n_print ("\n");
n_print ("Children:\n");
}
while (children) {
n_print (" %s\n", GST_ELEMENT_NAME (GST_ELEMENT (children->data)));
children = g_list_next (children);
}
}