static void pad_added (GstElement *elem, GstPad *pad, PipelineChangeListenerContext *ctx)
{
GstPad *peer = gst_pad_get_peer (pad);
GST_INFO ("found pad: %s (%s)", gst_pad_get_name (pad), G_OBJECT_TYPE_NAME (pad));
/* if this pad isn't already linked, setup a signal handler.. otherwise
* simulate the signal:
*/
if (peer != NULL)
{
pad_linked (pad, peer, ctx);
gst_object_unref (peer);
}
else
{
g_signal_connect (pad, "linked", pad_linked, ctx);
}
}
// Used to seal up unconnected source nodes by connecting unconnected src pads to fake sinks
bool MediaNode::releaseFakeSinkIfConnected(GstElement *tee, GstElement *fakesink, GstElement *bin)
{
if (GST_ELEMENT_PARENT(fakesink) == GST_ELEMENT(bin)) {
GstPad *sinkPad = gst_element_get_pad(fakesink, "sink");
// Release requested src pad from tee
GstPad *requestedPad = gst_pad_get_peer(sinkPad);
if (requestedPad) {
gst_element_release_request_pad(tee, requestedPad);
gst_object_unref(requestedPad);
}
gst_object_unref(sinkPad);
gst_element_set_state(fakesink, GST_STATE_NULL);
gst_bin_remove(GST_BIN(bin), fakesink);
Q_ASSERT(!GST_ELEMENT_PARENT(fakesink));
}
return true;
}
static void
gst_ghost_pad_dispose (GObject * object)
{
GstPad *pad;
GstPad *internal;
GstPad *peer;
pad = GST_PAD (object);
GST_DEBUG_OBJECT (pad, "dispose");
gst_ghost_pad_set_target (GST_GHOST_PAD (pad), NULL);
/* Unlink here so that gst_pad_dispose doesn't. That would lead to a call to
* gst_ghost_pad_do_unlink when the ghost pad is in an inconsistent state */
peer = gst_pad_get_peer (pad);
if (peer) {
if (GST_PAD_IS_SRC (pad))
gst_pad_unlink (pad, peer);
else
gst_pad_unlink (peer, pad);
gst_object_unref (peer);
}
GST_PROXY_LOCK (pad);
internal = GST_PROXY_PAD_INTERNAL (pad);
gst_pad_set_activatepull_function (internal, NULL);
gst_pad_set_activatepush_function (internal, NULL);
g_signal_handler_disconnect (internal,
GST_GHOST_PAD_PRIVATE (pad)->notify_id);
/* disposes of the internal pad, since the ghostpad is the only possible object
* that has a refcount on the internal pad. */
gst_object_unparent (GST_OBJECT_CAST (internal));
GST_PROXY_PAD_INTERNAL (pad) = NULL;
GST_PROXY_UNLOCK (pad);
G_OBJECT_CLASS (gst_ghost_pad_parent_class)->dispose (object);
}
static GstCaps *
gst_play_sink_convert_bin_getcaps (GstPad * pad, GstCaps * filter)
{
GstPlaySinkConvertBin *self =
GST_PLAY_SINK_CONVERT_BIN (gst_pad_get_parent (pad));
GstCaps *ret;
GstPad *otherpad, *peer;
GST_PLAY_SINK_CONVERT_BIN_LOCK (self);
if (pad == self->srcpad) {
otherpad = self->sinkpad;
} else if (pad == self->sinkpad) {
otherpad = self->srcpad;
} else {
GST_ERROR_OBJECT (pad, "Not one of our pads");
otherpad = NULL;
}
if (otherpad) {
peer = gst_pad_get_peer (otherpad);
if (peer) {
GstCaps *peer_caps = gst_pad_query_caps (peer, filter);
gst_object_unref (peer);
if (self->converter_caps && is_raw_caps (peer_caps, self->audio)) {
ret = gst_caps_merge (peer_caps, gst_caps_ref (self->converter_caps));
} else {
ret = peer_caps;
}
} else {
ret = gst_caps_ref (self->converter_caps);
}
} else {
ret = gst_caps_new_any ();
}
GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
gst_object_unref (self);
GST_DEBUG_OBJECT (pad, "Returning caps %" GST_PTR_FORMAT, ret);
return ret;
}
static void
kms_element_release_pad (GstElement * element, GstPad * pad)
{
GstElement *agnosticbin;
GstPad *target;
GstPad *peer;
if (g_str_has_prefix (GST_OBJECT_NAME (pad), "audio_src")) {
agnosticbin = KMS_ELEMENT (element)->priv->audio_agnosticbin;
} else if (g_str_has_prefix (GST_OBJECT_NAME (pad), "video_src")) {
agnosticbin = KMS_ELEMENT (element)->priv->video_agnosticbin;
} else {
return;
}
// TODO: Remove pad if is a sinkpad
target = gst_ghost_pad_get_target (GST_GHOST_PAD (pad));
if (target != NULL) {
if (agnosticbin != NULL) {
gst_element_release_request_pad (agnosticbin, target);
}
g_object_unref (target);
}
peer = gst_pad_get_peer (pad);
gst_pad_push_event (pad, gst_event_new_flush_start ());
if (GST_STATE (element) >= GST_STATE_PAUSED
|| GST_STATE_PENDING (element) >= GST_STATE_PAUSED) {
gst_pad_set_active (pad, FALSE);
}
if (peer) {
gst_pad_send_event (peer, gst_event_new_flush_stop (FALSE));
g_object_unref (peer);
}
gst_element_remove_pad (element, pad);
}
static void
mex_telepathy_channel_update_video_parameters (MexTelepathyChannel *self,
gboolean restart)
{
MexTelepathyChannelPrivate *priv = self->priv;
GstCaps *caps;
GstPad *src, *peer;
src = gst_element_get_static_pad (priv->video_input, "src");
peer = gst_pad_get_peer (src);
if (restart)
{
/* Assuming the pipeline is in playing state */
gst_element_set_locked_state (priv->video_input, TRUE);
gst_element_set_state (priv->video_input, GST_STATE_NULL);
gst_bin_remove (GST_BIN (priv->pipeline), priv->video_input);
}
g_object_get (priv->video_capsfilter, "caps", &caps, NULL);
caps = gst_caps_make_writable (caps);
gst_caps_set_simple (caps,
"framerate", GST_TYPE_FRACTION, priv->framerate, 1,
"width", G_TYPE_INT, priv->width,
"height", G_TYPE_INT, priv->height,
NULL);
g_object_set (priv->video_capsfilter, "caps", caps, NULL);
if (restart)
{
gst_bin_add (GST_BIN (priv->pipeline), priv->video_input);
gst_pad_link (src, peer);
gst_element_set_locked_state (priv->video_input, FALSE);
gst_element_sync_state_with_parent (priv->video_input);
}
gst_object_unref (src);
gst_object_unref (peer);
}
static void
add_smpte_to_bin (GstPad * sink, GstElement * smptealpha,
GESTrackVideoTransitionPrivate * priv)
{
GstPad *peer, *sinkpad;
g_object_set (smptealpha,
"type", (gint) priv->pending_type, "invert", (gboolean) TRUE, NULL);
gst_bin_add (GST_BIN (priv->topbin), smptealpha);
gst_element_sync_state_with_parent (smptealpha);
sinkpad = gst_element_get_static_pad (smptealpha, "sink");
peer = gst_pad_get_peer (sink);
gst_pad_unlink (peer, sink);
gst_pad_link_full (peer, sinkpad, GST_PAD_LINK_CHECK_NOTHING);
gst_object_unref (sinkpad);
gst_object_unref (peer);
}
static void
gst_uri_downloader_stop (GstUriDownloader * downloader)
{
GstPad *pad;
GST_DEBUG_OBJECT (downloader, "Stopping source element");
/* remove the bus' sync handler */
gst_bus_set_sync_handler (downloader->priv->bus, NULL, NULL);
/* unlink the source element from the internal pad */
pad = gst_pad_get_peer (downloader->priv->pad);
if (pad) {
gst_pad_unlink (pad, downloader->priv->pad);
gst_object_unref (pad);
}
/* set the element state to NULL */
gst_element_set_state (downloader->priv->urisrc, GST_STATE_NULL);
gst_element_get_state (downloader->priv->urisrc, NULL, NULL,
GST_CLOCK_TIME_NONE);
}
static void
gst_v4l2sink_navigation_send_event (GstNavigation * navigation,
GstStructure * structure)
{
GstV4l2Sink *v4l2sink = GST_V4L2SINK (navigation);
GstV4l2Xv *xv = v4l2sink->v4l2object->xv;
GstPad *peer;
if (!xv)
return;
if ((peer = gst_pad_get_peer (GST_VIDEO_SINK_PAD (v4l2sink)))) {
GstVideoRectangle rect;
gdouble x, y, xscale = 1.0, yscale = 1.0;
gst_v4l2_video_overlay_get_render_rect (v4l2sink->v4l2object, &rect);
/* We calculate scaling using the original video frames geometry to
* include pixel aspect ratio scaling.
*/
xscale = (gdouble) v4l2sink->video_width / rect.w;
yscale = (gdouble) v4l2sink->video_height / rect.h;
/* Converting pointer coordinates to the non scaled geometry */
if (gst_structure_get_double (structure, "pointer_x", &x)) {
x = MIN (x, rect.x + rect.w);
x = MAX (x - rect.x, 0);
gst_structure_set (structure, "pointer_x", G_TYPE_DOUBLE,
(gdouble) x * xscale, NULL);
}
if (gst_structure_get_double (structure, "pointer_y", &y)) {
y = MIN (y, rect.y + rect.h);
y = MAX (y - rect.y, 0);
gst_structure_set (structure, "pointer_y", G_TYPE_DOUBLE,
(gdouble) y * yscale, NULL);
}
gst_pad_send_event (peer, gst_event_new_navigation (structure));
gst_object_unref (peer);
}
}
static void
gst_glimage_sink_navigation_send_event (GstNavigation * navigation, GstStructure
* structure)
{
GstGLImageSink *sink = GST_GLIMAGE_SINK (navigation);
GstEvent *event = NULL;
GstPad *pad = NULL;
GstGLWindow *window = gst_gl_context_get_window (sink->context);
guint width, height;
gdouble x, y, xscale, yscale;
g_return_if_fail (GST_GL_IS_WINDOW (window));
width = GST_VIDEO_SINK_WIDTH (sink);
height = GST_VIDEO_SINK_HEIGHT (sink);
gst_gl_window_get_surface_dimensions (window, &width, &height);
event = gst_event_new_navigation (structure);
pad = gst_pad_get_peer (GST_VIDEO_SINK_PAD (sink));
/* Converting pointer coordinates to the non scaled geometry */
if (width != GST_VIDEO_SINK_WIDTH (sink) &&
width != 0 && gst_structure_get_double (structure, "pointer_x", &x)) {
xscale = (gdouble) GST_VIDEO_SINK_WIDTH (sink) / width;
gst_structure_set (structure, "pointer_x", G_TYPE_DOUBLE,
(gdouble) x * xscale, NULL);
}
if (height != GST_VIDEO_SINK_HEIGHT (sink) &&
height != 0 && gst_structure_get_double (structure, "pointer_y", &y)) {
yscale = (gdouble) GST_VIDEO_SINK_HEIGHT (sink) / height;
gst_structure_set (structure, "pointer_y", G_TYPE_DOUBLE,
(gdouble) y * yscale, NULL);
}
if (GST_IS_PAD (pad) && GST_IS_EVENT (event))
gst_pad_send_event (pad, event);
gst_object_unref (pad);
gst_object_unref (window);
}
GstPadProbeReturn
stop_pad_cb (GstPad *pad, GstPadProbeInfo *info, gpointer data)
{
MbMedia *media = NULL;
GstPad *peer;
GST_DEBUG_OBJECT(pad, "pad is blocked now");
/* first remove the probe */
gst_pad_remove_probe (pad, GST_PAD_PROBE_INFO_ID(info));
media = (MbMedia *) data;
g_assert (media);
peer = gst_pad_get_peer (pad);
g_assert(peer);
gst_pad_send_event (peer, gst_event_new_eos ());
gst_object_unref(peer);
return GST_PAD_PROBE_OK;
}
static void
check_all_streams_for_eos (GstDecodebin3 * dbin)
{
GList *tmp;
if (!all_inputs_are_eos (dbin))
return;
/* We know all streams are EOS, properly clean up everything */
for (tmp = dbin->input_streams; tmp; tmp = tmp->next) {
DecodebinInputStream *input = (DecodebinInputStream *) tmp->data;
GstPad *peer = gst_pad_get_peer (input->srcpad);
/* Send EOS and then remove elements */
if (peer) {
gst_pad_send_event (peer, gst_event_new_eos ());
gst_object_unref (peer);
}
GST_FIXME_OBJECT (input->srcpad, "Remove input stream");
}
}
static gboolean
idle_unlink (gpointer data)
{
GstPad *sink, *src;
GstElement *decoder = (GstElement *) data;
GstElement *agnostic = g_object_get_data (G_OBJECT (decoder), AGNOSTIC_KEY);
sink = gst_element_get_static_pad (decoder, "sink");
src = gst_pad_get_peer (sink);
gst_pad_unlink (src, sink);
gst_element_release_request_pad (agnostic, src);
g_object_unref (src);
g_object_unref (sink);
g_timeout_add (200, link_again, decoder);
return FALSE;
}
static gboolean
gst_shape_wipe_src_query (GstPad * pad, GstQuery * query)
{
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
gboolean ret;
GstPad *peer = gst_pad_get_peer (self->video_sinkpad);
GST_DEBUG_OBJECT (pad, "Handling query of type '%s'",
gst_query_type_get_name (GST_QUERY_TYPE (query)));
if (!peer) {
GST_INFO_OBJECT (pad, "No peer yet");
ret = FALSE;
} else {
ret = gst_pad_query (peer, query);
gst_object_unref (peer);
}
gst_object_unref (self);
return ret;
}
static void
gst_d3dvideosink_navigation_send_event (GstNavigation * navigation,
GstStructure * structure)
{
GstD3DVideoSink *sink = GST_D3DVIDEOSINK (navigation);
GstEvent *e;
if ((e = gst_event_new_navigation (structure))) {
GstPad *pad;
if ((pad = gst_pad_get_peer (GST_VIDEO_SINK_PAD (sink)))) {
if (!gst_pad_send_event (pad, gst_event_ref (e))) {
/* If upstream didn't handle the event we'll post a message with it
* for the application in case it wants to do something with it */
gst_element_post_message (GST_ELEMENT_CAST (sink),
gst_navigation_message_new_event (GST_OBJECT_CAST (sink), e));
}
gst_event_unref (e);
gst_object_unref (pad);
}
}
}
static GstPadProbeReturn
remove_on_unlinked_blocked (GstPad * pad, GstPadProbeInfo * info, gpointer elem)
{
KmsAgnosticBin2 *self;
GstPad *sink;
if (elem == NULL) {
return GST_PAD_PROBE_REMOVE;
}
GST_DEBUG_OBJECT (pad, "Unlinking pad");
GST_OBJECT_LOCK (pad);
if (g_object_get_qdata (G_OBJECT (pad), unlinking_data_quark ())) {
GST_OBJECT_UNLOCK (pad);
if (GST_PAD_PROBE_INFO_TYPE (info) & GST_PAD_PROBE_TYPE_QUERY_BOTH) {
/* Queries must be answered */
return GST_PAD_PROBE_PASS;
} else {
return GST_PAD_PROBE_DROP;
}
}
g_object_set_qdata (G_OBJECT (pad), unlinking_data_quark (),
GINT_TO_POINTER (TRUE));
GST_OBJECT_UNLOCK (pad);
sink = gst_pad_get_peer (pad);
if (sink != NULL) {
gst_pad_unlink (pad, sink);
g_object_unref (sink);
}
self = KMS_AGNOSTIC_BIN2 (GST_OBJECT_PARENT (elem));
g_thread_pool_push (self->priv->remove_pool, g_object_ref (elem), NULL);
return GST_PAD_PROBE_PASS;
}
static void
gst_ghost_pad_dispose (GObject * object)
{
GstPad *pad;
GstPad *internal;
GstPad *intpeer;
pad = GST_PAD (object);
GST_DEBUG_OBJECT (pad, "dispose");
GST_PROXY_LOCK (pad);
internal = GST_PROXY_PAD_INTERNAL (pad);
gst_pad_set_activatepull_function (internal, NULL);
gst_pad_set_activatepush_function (internal, NULL);
g_signal_handler_disconnect (internal, GST_GHOST_PAD_CAST (pad)->notify_id);
intpeer = gst_pad_get_peer (internal);
if (intpeer) {
if (GST_PAD_IS_SRC (internal))
gst_pad_unlink (internal, intpeer);
else
gst_pad_unlink (intpeer, internal);
gst_object_unref (intpeer);
}
GST_PROXY_PAD_INTERNAL (internal) = NULL;
/* disposes of the internal pad, since the ghostpad is the only possible object
* that has a refcount on the internal pad. */
gst_object_unparent (GST_OBJECT_CAST (internal));
GST_PROXY_UNLOCK (pad);
G_OBJECT_CLASS (gst_ghost_pad_parent_class)->dispose (object);
}
/* Must be called with mutex locked. */
static void
gst_uri_downloader_stop (GstUriDownloader * downloader)
{
GstPad *pad;
GstElement *urisrc;
if (!downloader->priv->urisrc)
return;
GST_DEBUG_OBJECT (downloader, "Stopping source element %s",
GST_ELEMENT_NAME (downloader->priv->urisrc));
/* remove the bus' sync handler */
gst_bus_set_sync_handler (downloader->priv->bus, NULL, NULL, NULL);
/* unlink the source element from the internal pad */
pad = gst_pad_get_peer (downloader->priv->pad);
if (pad) {
gst_pad_unlink (pad, downloader->priv->pad);
gst_object_unref (pad);
}
urisrc = downloader->priv->urisrc;
downloader->priv->urisrc = NULL;
/* unlock so it doesn't block on chain function while changing state */
g_mutex_unlock (&downloader->priv->lock);
GST_DEBUG_OBJECT (downloader, "Stopping source element %s",
GST_ELEMENT_NAME (urisrc));
/* set the element state to NULL */
gst_element_set_state (urisrc, GST_STATE_NULL);
gst_element_get_state (urisrc, NULL, NULL, GST_CLOCK_TIME_NONE);
gst_element_set_bus (urisrc, NULL);
gst_object_unref (urisrc);
/* caller expects the mutex to be locked */
g_mutex_lock (&downloader->priv->lock);
gst_bus_set_flushing (downloader->priv->bus, TRUE);
}
static gboolean
pipeline_op (GObject *player,
GstElement *fixture,
GstElement *element,
gboolean use_pad_block,
GstPadBlockCallback callback)
{
RBGstPipelineOp *op;
GstPad *fixture_pad;
GstPad *block_pad;
op = new_pipeline_op (player, fixture, element);
/* seems like we should be able to just block the src pad connected
* to the fixture's sink pad..
*/
fixture_pad = gst_element_get_static_pad (fixture, "sink");
block_pad = gst_pad_get_peer (fixture_pad);
gst_object_unref (fixture_pad);
if (use_pad_block) {
char *whatpad;
whatpad = gst_object_get_path_string (GST_OBJECT (block_pad));
rb_debug ("blocking pad %s to perform an operation", whatpad);
g_free (whatpad);
gst_pad_set_blocked_async (block_pad,
TRUE,
callback,
op);
} else {
rb_debug ("not using pad blocking, calling op directly");
(*callback) (block_pad, FALSE, op);
}
gst_object_unref (block_pad);
return TRUE;
}
static gboolean
gst_ghost_pad_internal_activate_pull_default (GstPad * pad, GstObject * parent,
gboolean active)
{
gboolean ret;
GstPad *other;
GST_LOG_OBJECT (pad, "%sactivate pull on %s:%s", (active ? "" : "de"),
GST_DEBUG_PAD_NAME (pad));
if (GST_PAD_DIRECTION (pad) == GST_PAD_SRC) {
/* we are activated in pull mode by our peer element, which is a sinkpad
* that wants to operate in pull mode. This activation has to propagate
* upstream through the pipeline. We call the internal activation function,
* which will trigger gst_ghost_pad_activate_pull_default, which propagates even
* further upstream */
GST_LOG_OBJECT (pad, "pad is src, activate internal");
GST_PROXY_PAD_ACQUIRE_INTERNAL (pad, other, FALSE);
ret = gst_pad_activate_mode (other, GST_PAD_MODE_PULL, active);
GST_PROXY_PAD_RELEASE_INTERNAL (other);
} else if (G_LIKELY ((other = gst_pad_get_peer (pad)))) {
/* We are SINK, the ghostpad is SRC, we propagate the activation upstream
* since we hold a pointer to the upstream peer. */
GST_LOG_OBJECT (pad, "activating peer");
ret = gst_pad_activate_mode (other, GST_PAD_MODE_PULL, active);
gst_object_unref (other);
} else if (active) {
/* this is failure, we can't activate pull if there is no peer */
GST_LOG_OBJECT (pad, "not src and no peer, failing");
ret = FALSE;
} else {
GST_LOG_OBJECT (pad, "deactivating pull, with no peer - allowing");
ret = TRUE;
}
return ret;
}
static void
remove_input_stream (GstDecodebin3 * dbin, DecodebinInputStream * stream)
{
MultiQueueSlot *slot;
GST_DEBUG_OBJECT (dbin, "Removing input stream %p (%s)", stream,
stream->active_stream ? gst_stream_get_stream_id (stream->active_stream) :
"<NONE>");
/* Unlink from slot */
if (stream->srcpad) {
GstPad *peer;
peer = gst_pad_get_peer (stream->srcpad);
if (peer) {
gst_pad_unlink (stream->srcpad, peer);
gst_object_unref (peer);
}
}
g_mutex_lock (&dbin->selection_lock);
slot = get_slot_for_input (dbin, stream);
g_mutex_unlock (&dbin->selection_lock);
if (slot) {
slot->pending_stream = NULL;
slot->input = NULL;
GST_DEBUG_OBJECT (dbin, "slot %p cleared", slot);
}
if (stream->active_stream)
gst_object_unref (stream->active_stream);
if (stream->pending_stream)
gst_object_unref (stream->pending_stream);
dbin->input_streams = g_list_remove (dbin->input_streams, stream);
g_free (stream);
}
static gboolean
gst_splitmux_part_reader_send_event (GstElement * element, GstEvent * event)
{
GstSplitMuxPartReader *reader = (GstSplitMuxPartReader *) element;
gboolean ret = FALSE;
GstPad *pad = NULL;
/* Send event to the first source pad we found */
SPLITMUX_PART_LOCK (reader);
if (reader->pads) {
GstPad *proxy_pad = GST_PAD_CAST (reader->pads->data);
pad = gst_pad_get_peer (proxy_pad);
}
SPLITMUX_PART_UNLOCK (reader);
if (pad) {
ret = gst_pad_send_event (pad, event);
gst_object_unref (pad);
} else {
gst_event_unref (event);
}
return ret;
}
static void
gst_hls_sink2_release_pad (GstElement * element, GstPad * pad)
{
GstHlsSink2 *sink = GST_HLS_SINK2_CAST (element);
GstPad *peer;
g_return_if_fail (pad == sink->audio_sink || pad == sink->video_sink);
peer = gst_pad_get_peer (pad);
if (peer) {
gst_element_release_request_pad (sink->splitmuxsink, pad);
gst_object_unref (peer);
}
gst_object_ref (pad);
gst_element_remove_pad (element, pad);
gst_pad_set_active (pad, FALSE);
if (pad == sink->audio_sink)
sink->audio_sink = NULL;
else
sink->video_sink = NULL;
gst_object_unref (pad);
}
/* Clean up output/input pad and respective selector request pad */
void
cleanup_pad (GstPad * pad, GstElement * element)
{
GstPad *selpad = NULL;
guint probe_id = 0;
fail_if (pad == NULL, "pad doesn't exist");
/* remove probe if necessary */
probe_id = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (pad), "probe_id"));
if (probe_id)
gst_pad_remove_data_probe (pad, probe_id);
/* unlink */
selpad = gst_pad_get_peer (pad);
if (GST_PAD_DIRECTION (selpad) == GST_PAD_SRC) {
gst_pad_unlink (selpad, pad);
} else {
gst_pad_unlink (pad, selpad);
}
/* caps could have been set, make sure they get unset */
gst_pad_set_caps (pad, NULL);
GST_DEBUG_OBJECT (pad, "clean up %" GST_PTR_FORMAT " and %" GST_PTR_FORMAT,
selpad, pad);
/* cleanup the pad */
gst_pad_set_active (pad, FALSE);
ASSERT_OBJECT_REFCOUNT (pad, "pad", 1);
gst_object_unref (pad);
/* cleanup selector pad, reffed by this function (_get_peer) and creator */
gst_element_release_request_pad (element, selpad);
gst_object_unref (selpad);
}
static void
gst_gtk_base_sink_navigation_send_event (GstNavigation * navigation,
GstStructure * structure)
{
GstGtkBaseSink *sink = GST_GTK_BASE_SINK (navigation);
GstEvent *event;
GstPad *pad;
event = gst_event_new_navigation (structure);
pad = gst_pad_get_peer (GST_VIDEO_SINK_PAD (sink));
GST_TRACE_OBJECT (sink, "navigation event %" GST_PTR_FORMAT, structure);
if (GST_IS_PAD (pad) && GST_IS_EVENT (event)) {
if (!gst_pad_send_event (pad, gst_event_ref (event))) {
/* If upstream didn't handle the event we'll post a message with it
* for the application in case it wants to do something with it */
gst_element_post_message (GST_ELEMENT_CAST (sink),
gst_navigation_message_new_event (GST_OBJECT_CAST (sink), event));
}
gst_event_unref (event);
gst_object_unref (pad);
}
}
static GstCaps *
gst_aspect_ratio_crop_get_caps (GstPad * pad, GstCaps * filter)
{
GstPad *peer;
GstAspectRatioCrop *aspect_ratio_crop;
GstCaps *return_caps;
aspect_ratio_crop = GST_ASPECT_RATIO_CROP (gst_pad_get_parent (pad));
g_mutex_lock (&aspect_ratio_crop->crop_lock);
peer = gst_pad_get_peer (aspect_ratio_crop->sink);
if (peer == NULL) {
return_caps = gst_static_pad_template_get_caps (&src_template);
} else {
GstCaps *peer_caps;
peer_caps = gst_pad_query_caps (peer, filter);
return_caps =
gst_aspect_ratio_crop_transform_caps (aspect_ratio_crop, peer_caps);
gst_caps_unref (peer_caps);
gst_object_unref (peer);
}
g_mutex_unlock (&aspect_ratio_crop->crop_lock);
gst_object_unref (aspect_ratio_crop);
if (return_caps && filter) {
GstCaps *tmp =
gst_caps_intersect_full (filter, return_caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_replace (&return_caps, tmp);
gst_caps_unref (tmp);
}
return return_caps;
}
static void
pad_blocked_cb (GstPad * pad, gboolean blocked, GstPlaySinkVideoConvert * self)
{
GstPad *peer;
GstCaps *caps;
gboolean raw;
GST_PLAY_SINK_VIDEO_CONVERT_LOCK (self);
self->sink_proxypad_blocked = blocked;
GST_DEBUG_OBJECT (self, "Pad blocked: %d", blocked);
if (!blocked)
goto done;
/* There must be a peer at this point */
peer = gst_pad_get_peer (self->sinkpad);
caps = gst_pad_get_negotiated_caps (peer);
if (!caps)
caps = gst_pad_get_caps_reffed (peer);
gst_object_unref (peer);
raw = is_raw_caps (caps);
GST_DEBUG_OBJECT (self, "Caps %" GST_PTR_FORMAT " are raw: %d", caps, raw);
gst_caps_unref (caps);
if (raw == self->raw)
goto unblock;
self->raw = raw;
if (raw) {
GstBin *bin = GST_BIN_CAST (self);
GstElement *head = NULL, *prev = NULL;
GstPad *pad;
GST_DEBUG_OBJECT (self, "Creating raw conversion pipeline");
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->sinkpad), NULL);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad), NULL);
self->conv = gst_element_factory_make ("ffmpegcolorspace", "conv");
if (self->conv == NULL) {
post_missing_element_message (self, "ffmpegcolorspace");
GST_ELEMENT_WARNING (self, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"ffmpegcolorspace"), ("video rendering might fail"));
} else {
gst_bin_add (bin, self->conv);
gst_element_sync_state_with_parent (self->conv);
distribute_running_time (self->conv, &self->segment);
prev = head = self->conv;
}
self->scale = gst_element_factory_make ("videoscale", "scale");
if (self->scale == NULL) {
post_missing_element_message (self, "videoscale");
GST_ELEMENT_WARNING (self, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"videoscale"), ("possibly a liboil version mismatch?"));
} else {
/* Add black borders if necessary to keep the DAR */
g_object_set (self->scale, "add-borders", TRUE, NULL);
gst_bin_add (bin, self->scale);
gst_element_sync_state_with_parent (self->scale);
distribute_running_time (self->scale, &self->segment);
if (prev) {
if (!gst_element_link_pads_full (prev, "src", self->scale, "sink",
GST_PAD_LINK_CHECK_TEMPLATE_CAPS))
goto link_failed;
} else {
head = self->scale;
}
prev = self->scale;
}
if (head) {
pad = gst_element_get_static_pad (head, "sink");
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->sinkpad), pad);
gst_object_unref (pad);
}
if (prev) {
pad = gst_element_get_static_pad (prev, "src");
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad), pad);
gst_object_unref (pad);
}
if (!head && !prev) {
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad),
self->sink_proxypad);
}
GST_DEBUG_OBJECT (self, "Raw conversion pipeline created");
} else {
GstBin *bin = GST_BIN_CAST (self);
GST_DEBUG_OBJECT (self, "Removing raw conversion pipeline");
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->sinkpad), NULL);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad), NULL);
if (self->conv) {
gst_element_set_state (self->conv, GST_STATE_NULL);
gst_bin_remove (bin, self->conv);
self->conv = NULL;
}
if (self->scale) {
gst_element_set_state (self->scale, GST_STATE_NULL);
gst_bin_remove (bin, self->scale);
self->scale = NULL;
}
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad),
self->sink_proxypad);
GST_DEBUG_OBJECT (self, "Raw conversion pipeline removed");
}
unblock:
gst_pad_set_blocked_async_full (self->sink_proxypad, FALSE,
(GstPadBlockCallback) pad_blocked_cb, gst_object_ref (self),
(GDestroyNotify) gst_object_unref);
done:
GST_PLAY_SINK_VIDEO_CONVERT_UNLOCK (self);
return;
link_failed:
{
GST_ELEMENT_ERROR (self, CORE, PAD,
(NULL), ("Failed to configure the video converter."));
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad),
self->sink_proxypad);
gst_pad_set_blocked_async_full (self->sink_proxypad, FALSE,
(GstPadBlockCallback) pad_blocked_cb, gst_object_ref (self),
(GDestroyNotify) gst_object_unref);
return;
}
}
/* Helper function to test delayed linking support in parse_launch by creating
* a test element based on bin, which contains a fakesrc and a sometimes
* pad-template, and trying to link to a fakesink. When the bin transitions
* to paused it adds a pad, which should get linked to the fakesink */
static void
run_delayed_test (const gchar * pipe_str, const gchar * peer,
gboolean expect_link)
{
GstElement *pipe, *src, *sink;
GstPad *srcpad, *sinkpad, *peerpad = NULL;
pipe = setup_pipeline (pipe_str);
src = gst_bin_get_by_name (GST_BIN (pipe), "src");
fail_if (src == NULL, "Test source element was not created");
sink = gst_bin_get_by_name (GST_BIN (pipe), "sink");
fail_if (sink == NULL, "Test sink element was not created");
/* The src should not yet have a src pad */
srcpad = gst_element_get_static_pad (src, "src");
fail_unless (srcpad == NULL, "Source element already has a source pad");
/* Set the state to PAUSED and wait until the src at least reaches that
* state */
fail_if (gst_element_set_state (pipe, GST_STATE_PAUSED) ==
GST_STATE_CHANGE_FAILURE);
fail_if (gst_element_get_state (src, NULL, NULL, GST_CLOCK_TIME_NONE) ==
GST_STATE_CHANGE_FAILURE);
/* Now, the source element should have a src pad, and if "peer" was passed,
* then the src pad should have gotten linked to the 'sink' pad of that
* peer */
srcpad = gst_element_get_static_pad (src, "src");
fail_if (srcpad == NULL, "Source element did not create source pad");
peerpad = gst_pad_get_peer (srcpad);
if (expect_link == TRUE) {
fail_if (peerpad == NULL, "Source element pad did not get linked");
} else {
fail_if (peerpad != NULL,
"Source element pad got linked but should not have");
}
if (peerpad != NULL)
gst_object_unref (peerpad);
if (peer != NULL) {
GstElement *peer_elem = gst_bin_get_by_name (GST_BIN (pipe), peer);
fail_if (peer_elem == NULL, "Could not retrieve peer %s", peer);
sinkpad = gst_element_get_static_pad (peer_elem, "sink");
fail_if (sinkpad == NULL, "Peer element did not have a 'sink' pad");
fail_unless (peerpad == sinkpad,
"Source src pad got connected to the wrong peer");
gst_object_unref (sinkpad);
}
gst_object_unref (srcpad);
gst_object_unref (src);
gst_object_unref (sink);
gst_element_set_state (pipe, GST_STATE_NULL);
gst_object_unref (pipe);
}
static void
run_output_order_test (gint n_linked)
{
/* This test creates a multiqueue with 2 linked output, and 3 outputs that
* return 'not-linked' when data is pushed, then verifies that all buffers
* are received on not-linked pads only after earlier buffers on the
* 'linked' pads are made */
GstElement *pipe;
GstElement *mq;
GstPad *inputpads[5];
GstPad *sinkpads[5];
struct PadData pad_data[5];
guint32 max_linked_id;
guint32 eos_seen;
GMutex *mutex;
GCond *cond;
gint i;
const gint NPADS = 5;
const gint NBUFFERS = 1000;
mutex = g_mutex_new ();
cond = g_cond_new ();
pipe = gst_bin_new ("testbin");
mq = gst_element_factory_make ("multiqueue", NULL);
fail_unless (mq != NULL);
gst_bin_add (GST_BIN (pipe), mq);
/* No limits */
g_object_set (mq,
"max-size-bytes", (guint) 0,
"max-size-buffers", (guint) 0,
"max-size-time", (guint64) 0,
"extra-size-bytes", (guint) 0,
"extra-size-buffers", (guint) 0, "extra-size-time", (guint64) 0, NULL);
/* Construct NPADS dummy output pads. The first 'n_linked' return FLOW_OK, the rest
* return NOT_LINKED. The not-linked ones check the expected ordering of
* output buffers */
for (i = 0; i < NPADS; i++) {
GstPad *mq_srcpad, *mq_sinkpad;
gchar *name;
name = g_strdup_printf ("dummysrc%d", i);
inputpads[i] = gst_pad_new (name, GST_PAD_SRC);
g_free (name);
gst_pad_set_getcaps_function (inputpads[i], mq_dummypad_getcaps);
mq_sinkpad = gst_element_get_request_pad (mq, "sink%d");
fail_unless (mq_sinkpad != NULL);
gst_pad_link (inputpads[i], mq_sinkpad);
gst_pad_set_active (inputpads[i], TRUE);
mq_srcpad = mq_sinkpad_to_srcpad (mq, mq_sinkpad);
name = g_strdup_printf ("dummysink%d", i);
sinkpads[i] = gst_pad_new (name, GST_PAD_SINK);
g_free (name);
gst_pad_set_chain_function (sinkpads[i], mq_dummypad_chain);
gst_pad_set_event_function (sinkpads[i], mq_dummypad_event);
gst_pad_set_getcaps_function (sinkpads[i], mq_dummypad_getcaps);
pad_data[i].pad_num = i;
pad_data[i].max_linked_id_ptr = &max_linked_id;
pad_data[i].eos_count_ptr = &eos_seen;
pad_data[i].is_linked = (i < n_linked ? TRUE : FALSE);
pad_data[i].n_linked = n_linked;
pad_data[i].cond = cond;
pad_data[i].mutex = mutex;
pad_data[i].first_buf = TRUE;
gst_pad_set_element_private (sinkpads[i], pad_data + i);
gst_pad_link (mq_srcpad, sinkpads[i]);
gst_pad_set_active (sinkpads[i], TRUE);
gst_object_unref (mq_sinkpad);
gst_object_unref (mq_srcpad);
}
/* Run the test. Push 1000 buffers through the multiqueue in a pattern */
max_linked_id = 0;
eos_seen = 0;
gst_element_set_state (pipe, GST_STATE_PLAYING);
for (i = 0; i < NBUFFERS; i++) {
const guint8 pad_pattern[] =
{ 0, 0, 0, 0, 1, 1, 2, 1, 0, 2, 3, 2, 3, 1, 4 };
const guint n = sizeof (pad_pattern) / sizeof (guint8);
guint8 cur_pad;
GstBuffer *buf;
GstFlowReturn ret;
cur_pad = pad_pattern[i % n];
buf = gst_buffer_new_and_alloc (4);
g_static_mutex_lock (&_check_lock);
fail_if (buf == NULL);
g_static_mutex_unlock (&_check_lock);
GST_WRITE_UINT32_BE (GST_BUFFER_DATA (buf), i + 1);
GST_BUFFER_TIMESTAMP (buf) = (i + 1) * GST_SECOND;
ret = gst_pad_push (inputpads[cur_pad], buf);
g_static_mutex_lock (&_check_lock);
if (pad_data[cur_pad].is_linked) {
fail_unless (ret == GST_FLOW_OK,
"Push on pad %d returned %d when FLOW_OK was expected", cur_pad, ret);
} else {
/* Expect OK initially, then NOT_LINKED when the srcpad starts pushing */
fail_unless (ret == GST_FLOW_OK || ret == GST_FLOW_NOT_LINKED,
"Push on pad %d returned %d when FLOW_OK or NOT_LINKED was expected",
cur_pad, ret);
}
g_static_mutex_unlock (&_check_lock);
}
for (i = 0; i < NPADS; i++) {
gst_pad_push_event (inputpads[i], gst_event_new_eos ());
}
/* Wait while the buffers are processed */
g_mutex_lock (mutex);
while (eos_seen < 5) {
g_cond_wait (cond, mutex);
}
g_mutex_unlock (mutex);
/* Clean up */
for (i = 0; i < 5; i++) {
GstPad *mq_input = gst_pad_get_peer (inputpads[i]);
gst_pad_unlink (inputpads[i], mq_input);
gst_element_release_request_pad (mq, mq_input);
gst_object_unref (mq_input);
gst_object_unref (inputpads[i]);
gst_object_unref (sinkpads[i]);
}
gst_element_set_state (pipe, GST_STATE_NULL);
gst_object_unref (pipe);
g_cond_free (cond);
g_mutex_free (mutex);
}
static void
gst_insert_bin_do_change (GstInsertBin * self, GstPad * pad)
{
struct ChangeData *data;
GST_OBJECT_LOCK (self);
if (!is_right_direction_for_block (pad)) {
GST_WARNING_OBJECT (self, "Block pad does not have the expected direction");
goto next;
}
while ((data = g_queue_pop_head (&self->priv->change_queue)) != NULL) {
GstPad *peer = NULL;
GstPad *other_peer = NULL;
GST_OBJECT_UNLOCK (self);
if (data->action == GST_INSERT_BIN_ACTION_ADD &&
!validate_element (self, data->element))
goto error;
peer = gst_pad_get_peer (pad);
if (peer == NULL) {
GST_WARNING_OBJECT (self, "Blocked pad has no peer");
goto error;
}
if (data->action == GST_INSERT_BIN_ACTION_ADD) {
GstPad *srcpad = NULL, *sinkpad = NULL;
GstPad *peersrcpad, *peersinkpad;
/* First let's make sure we have the right pad */
if (data->sibling) {
GstElement *parent = NULL;
GstPad *siblingpad;
if ((gst_pad_get_direction (pad) == GST_PAD_SRC &&
data->direction == DIRECTION_BEFORE) ||
(gst_pad_get_direction (pad) == GST_PAD_SINK &&
data->direction == DIRECTION_AFTER))
siblingpad = peer;
else
siblingpad = pad;
parent = gst_pad_get_parent_element (siblingpad);
if (parent != NULL)
gst_object_unref (parent);
if (parent != data->sibling)
goto retry;
} else {
GstObject *parent;
GstPad *ghost;
GstPad *proxypad;
if (data->direction == DIRECTION_BEFORE) {
ghost = self->priv->srcpad;
if (gst_pad_get_direction (pad) == GST_PAD_SINK)
proxypad = pad;
else
proxypad = peer;
} else {
ghost = self->priv->sinkpad;
if (gst_pad_get_direction (pad) == GST_PAD_SINK)
proxypad = peer;
else
proxypad = pad;
}
if (!GST_IS_PROXY_PAD (proxypad))
goto retry;
parent = gst_pad_get_parent (proxypad);
if (!parent)
goto retry;
gst_object_unref (parent);
if (GST_PAD_CAST (parent) != ghost)
goto retry;
}
if (gst_pad_get_direction (pad) == GST_PAD_SRC) {
peersrcpad = pad;
peersinkpad = peer;
} else {
peersrcpad = peer;
peersinkpad = pad;
}
if (GST_IS_PROXY_PAD (peersrcpad)) {
GstObject *parent = gst_pad_get_parent (peersrcpad);
if (GST_PAD_CAST (parent) == self->priv->sinkpad)
peersrcpad = NULL;
if (parent)
gst_object_unref (parent);
}
if (GST_IS_PROXY_PAD (peersinkpad)) {
GstObject *parent = gst_pad_get_parent (peersinkpad);
if (GST_PAD_CAST (parent) == self->priv->srcpad)
peersinkpad = NULL;
if (parent)
gst_object_unref (parent);
}
if (peersinkpad && peersrcpad) {
gst_pad_unlink (peersrcpad, peersinkpad);
} else {
if (!peersinkpad)
gst_ghost_pad_set_target (GST_GHOST_PAD (self->priv->srcpad), NULL);
if (!peersrcpad)
gst_ghost_pad_set_target (GST_GHOST_PAD (self->priv->sinkpad), NULL);
}
srcpad = get_single_pad (data->element, GST_PAD_SRC);
sinkpad = get_single_pad (data->element, GST_PAD_SINK);
if (srcpad == NULL || sinkpad == NULL) {
GST_WARNING_OBJECT (self, "Can not get element src or sink pad");
goto error;
}
if (!gst_bin_add (GST_BIN (self), data->element)) {
GST_WARNING_OBJECT (self, "Can not add element to bin");
goto error;
}
if (peersrcpad) {
if (GST_PAD_LINK_FAILED (gst_pad_link (peersrcpad, sinkpad))) {
GST_WARNING_OBJECT (self, "Can not link sibling's %s:%s pad"
" to element's %s:%s pad", GST_DEBUG_PAD_NAME (peersrcpad),
GST_DEBUG_PAD_NAME (sinkpad));
goto error;
}
} else {
if (!gst_ghost_pad_set_target (GST_GHOST_PAD (self->priv->sinkpad),
sinkpad)) {
GST_WARNING_OBJECT (self, "Can not set %s:%s as target for %s:%s",
GST_DEBUG_PAD_NAME (sinkpad),
GST_DEBUG_PAD_NAME (self->priv->sinkpad));
goto error;
}
}
if (peersinkpad) {
if (GST_PAD_LINK_FAILED (gst_pad_link (srcpad, peersinkpad))) {
GST_WARNING_OBJECT (self, "Can not link element's %s:%s pad"
" to sibling's %s:%s pad", GST_DEBUG_PAD_NAME (srcpad),
GST_DEBUG_PAD_NAME (peersinkpad));
goto error;
}
} else {
if (!gst_ghost_pad_set_target (GST_GHOST_PAD (self->priv->srcpad),
srcpad)) {
GST_WARNING_OBJECT (self, "Can not set %s:%s as target for %s:%s",
GST_DEBUG_PAD_NAME (srcpad),
GST_DEBUG_PAD_NAME (self->priv->srcpad));
goto error;
}
}
gst_object_unref (srcpad);
gst_object_unref (sinkpad);
if (!gst_element_sync_state_with_parent (data->element)) {
GST_WARNING_OBJECT (self, "Can not sync element's state with parent");
goto error;
}
} else {
GstElement *parent = NULL;
GstPad *other_pad;
GstCaps *caps = NULL, *peercaps = NULL;
gboolean can_intersect;
gboolean success;
parent = gst_pad_get_parent_element (peer);
if (parent != NULL)
gst_object_unref (parent);
if (parent != data->element)
goto retry;
if (gst_pad_get_direction (peer) == GST_PAD_SRC)
other_pad = get_single_pad (data->element, GST_PAD_SINK);
else
other_pad = get_single_pad (data->element, GST_PAD_SRC);
if (!other_pad) {
GST_WARNING_OBJECT (self, "Can not get element's other pad");
goto error;
}
other_peer = gst_pad_get_peer (other_pad);
gst_object_unref (other_pad);
if (!other_peer) {
GST_WARNING_OBJECT (self, "Can not get element's other peer");
goto error;
}
/* Get the negotiated caps for the source pad peer,
* because renegotiation while the pipeline is playing doesn't work
* that fast.
*/
if (gst_pad_get_direction (pad) == GST_PAD_SRC)
caps = gst_pad_get_current_caps (pad);
else
peercaps = gst_pad_get_current_caps (other_peer);
if (!caps)
caps = gst_pad_query_caps (pad, NULL);
if (!peercaps)
peercaps = gst_pad_query_caps (other_peer, NULL);
can_intersect = gst_caps_can_intersect (caps, peercaps);
gst_caps_unref (caps);
gst_caps_unref (peercaps);
if (!can_intersect) {
GST_WARNING_OBJECT (self, "Pads are incompatible without the element");
goto error;
}
if (gst_pad_get_direction (other_peer) == GST_PAD_SRC &&
gst_pad_is_active (other_peer)) {
gulong probe_id;
probe_id = gst_pad_add_probe (other_peer,
GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM,
wait_and_drop_eos_cb, NULL, NULL);
gst_pad_send_event (peer, gst_event_new_eos ());
gst_pad_remove_probe (other_peer, probe_id);
}
gst_element_set_locked_state (data->element, TRUE);
gst_element_set_state (data->element, GST_STATE_NULL);
if (!gst_bin_remove (GST_BIN (self), data->element)) {
GST_WARNING_OBJECT (self, "Element removal rejected");
goto error;
}
gst_element_set_locked_state (data->element, FALSE);
if (gst_pad_get_direction (pad) == GST_PAD_SRC)
success = GST_PAD_LINK_SUCCESSFUL (gst_pad_link_full (pad, other_peer,
GST_PAD_LINK_CHECK_HIERARCHY |
GST_PAD_LINK_CHECK_TEMPLATE_CAPS));
else
success = GST_PAD_LINK_SUCCESSFUL (gst_pad_link_full (other_peer, pad,
GST_PAD_LINK_CHECK_HIERARCHY |
GST_PAD_LINK_CHECK_TEMPLATE_CAPS));
gst_object_unref (other_peer);
other_peer = NULL;
if (!success) {
GST_ERROR_OBJECT (self, "Could not re-link after the element's"
" removal");
goto error;
}
}
gst_insert_bin_change_data_complete (self, data, TRUE);
gst_object_unref (peer);
GST_OBJECT_LOCK (self);
continue;
done:
if (other_peer != NULL)
gst_object_unref (other_peer);
if (peer != NULL)
gst_object_unref (peer);
break;
retry:
GST_OBJECT_LOCK (self);
g_queue_push_head (&self->priv->change_queue, data);
goto done;
error:
/* Handle error */
gst_insert_bin_change_data_complete (self, data, FALSE);
GST_OBJECT_LOCK (self);
goto done;
}
next:
gst_insert_bin_block_pad_unlock (self);
}
