///////////////////////////////////////////////////////////////////////////////////////////////////
/// gst_element_get_first_sink_pad()
///
/// Get an element's first sink pad by using gst_element_iterate_sink_pads. The pad's ref count is
/// NOT incremented.
///////////////////////////////////////////////////////////////////////////////////////////////////
GstPad* gst_element_get_first_sink_pad(GstElement* element)
{
GstIterator *iter = gst_element_iterate_sink_pads(element);
GValue vPad = G_VALUE_INIT;
GstPad* ret = NULL;
if (gst_iterator_next(iter, &vPad) == GST_ITERATOR_OK)
{
ret = GST_PAD(g_value_get_object(&vPad));
}
gst_iterator_free(iter);
return ret;
} // END gst_element_get_first_sink_pad()
///////////////////////////////////////////////////////////////////////////////////////////////////
/// gst_element_count_sink_pads()
///
/// Count the element's sink pads by using gst_element_iterate_sink_pads.
///////////////////////////////////////////////////////////////////////////////////////////////////
gsize gst_element_count_sink_pads(GstElement* element)
{
GstIterator *iter = gst_element_iterate_sink_pads(element);
GValue vPad = G_VALUE_INIT;
gsize ret = 0;
while (gst_iterator_next(iter, &vPad) == GST_ITERATOR_OK)
{
ret++;
}
gst_iterator_free(iter);
return ret;
} // END gst_element_count_sink_pads()
gboolean
kms_element_for_each_sink_pad (GstElement * element,
KmsPadCallback action, gpointer data)
{
GstIterator *it = gst_element_iterate_sink_pads (element);
gboolean ret;
ret = kms_element_iterate_pads (it, action, data);
gst_iterator_free (it);
return ret;
}
static GstCaps *
gst_rtp_mux_getcaps (GstPad * pad, GstRTPMux * mux, GstCaps * filter)
{
GstCaps *caps = NULL;
GstIterator *iter = NULL;
GValue v = { 0 };
GstIteratorResult res;
GstCaps *peercaps;
GstCaps *othercaps;
GstCaps *tcaps;
peercaps = gst_pad_peer_query_caps (mux->srcpad, filter);
if (peercaps) {
tcaps = gst_pad_get_pad_template_caps (pad);
othercaps = gst_caps_intersect_full (peercaps, tcaps,
GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (peercaps);
} else {
tcaps = gst_pad_get_pad_template_caps (mux->srcpad);
if (filter)
othercaps = gst_caps_intersect_full (filter, tcaps,
GST_CAPS_INTERSECT_FIRST);
else
othercaps = gst_caps_copy (tcaps);
}
gst_caps_unref (tcaps);
clear_caps (othercaps, FALSE);
g_value_init (&v, GST_TYPE_CAPS);
iter = gst_element_iterate_sink_pads (GST_ELEMENT (mux));
do {
gst_value_set_caps (&v, othercaps);
res = gst_iterator_fold (iter, same_clock_rate_fold, &v, pad);
gst_iterator_resync (iter);
} while (res == GST_ITERATOR_RESYNC);
gst_iterator_free (iter);
caps = (GstCaps *) gst_value_get_caps (&v);
if (res == GST_ITERATOR_ERROR) {
gst_caps_unref (caps);
caps = gst_caps_new_empty ();
}
gst_caps_unref (othercaps);
return caps;
}
static void
release_sink_pads (GstElement * audiomixer)
{
GValue val = G_VALUE_INIT;
GstIterator *it;
gboolean done = FALSE;
it = gst_element_iterate_sink_pads (audiomixer);
do {
switch (gst_iterator_next (it, &val)) {
case GST_ITERATOR_OK:
{
GstPad *sinkpad, *srcpad;
GstElement *agnosticbin;
sinkpad = g_value_get_object (&val);
srcpad = gst_pad_get_peer (sinkpad);
agnosticbin = gst_pad_get_parent_element (srcpad);
GST_DEBUG ("Unlink %" GST_PTR_FORMAT " and %" GST_PTR_FORMAT,
agnosticbin, audiomixer);
if (!gst_pad_unlink (srcpad, sinkpad)) {
GST_ERROR ("Can not unlink %" GST_PTR_FORMAT " and %" GST_PTR_FORMAT,
srcpad, sinkpad);
}
gst_element_release_request_pad (audiomixer, sinkpad);
gst_element_release_request_pad (agnosticbin, srcpad);
gst_object_unref (srcpad);
gst_object_unref (agnosticbin);
g_value_reset (&val);
break;
}
case GST_ITERATOR_RESYNC:
gst_iterator_resync (it);
break;
case GST_ITERATOR_ERROR:
GST_ERROR ("Error iterating over %s's src pads",
GST_ELEMENT_NAME (audiomixer));
case GST_ITERATOR_DONE:
g_value_unset (&val);
done = TRUE;
break;
}
} while (!done);
gst_iterator_free (it);
}
/* forwards the event to all sinkpads, takes ownership of the
* event
*
* Returns: TRUE if the event could be forwarded on all
* sinkpads.
*/
static gboolean
forward_event (GstAdder * adder, GstEvent * event, gboolean flush)
{
gboolean ret;
GstIterator *it;
GstIteratorResult ires;
GValue vret = { 0 };
EventData data;
GST_LOG_OBJECT (adder, "Forwarding event %p (%s)", event,
GST_EVENT_TYPE_NAME (event));
data.event = event;
data.flush = flush;
g_value_init (&vret, G_TYPE_BOOLEAN);
g_value_set_boolean (&vret, FALSE);
it = gst_element_iterate_sink_pads (GST_ELEMENT_CAST (adder));
while (TRUE) {
ires =
gst_iterator_fold (it, (GstIteratorFoldFunction) forward_event_func,
&vret, &data);
switch (ires) {
case GST_ITERATOR_RESYNC:
GST_WARNING ("resync");
gst_iterator_resync (it);
g_value_set_boolean (&vret, TRUE);
break;
case GST_ITERATOR_OK:
case GST_ITERATOR_DONE:
ret = g_value_get_boolean (&vret);
goto done;
default:
ret = FALSE;
goto done;
}
}
done:
gst_iterator_free (it);
GST_LOG_OBJECT (adder, "Forwarded event %p (%s), ret=%d", event,
GST_EVENT_TYPE_NAME (event), ret);
gst_event_unref (event);
return ret;
}
static gboolean
forward_event (GstInterleave * self, GstEvent * event)
{
GstIterator *it;
GValue vret = { 0 };
GST_LOG_OBJECT (self, "Forwarding event %p (%s)", event,
GST_EVENT_TYPE_NAME (event));
g_value_init (&vret, G_TYPE_BOOLEAN);
g_value_set_boolean (&vret, TRUE);
it = gst_element_iterate_sink_pads (GST_ELEMENT_CAST (self));
gst_iterator_fold (it, (GstIteratorFoldFunction) forward_event_func, &vret,
event);
gst_iterator_free (it);
gst_event_unref (event);
return g_value_get_boolean (&vret);
}
///////////////////////////////////////////////////////////////////////////////////////////////////
/// gst_element_find_sink_pad_by_name()
///
/// Find an element's sink pad by name by using gst_element_iterate_sink_pads and comparing the
/// element's name with that provided.
///////////////////////////////////////////////////////////////////////////////////////////////////
GstPad* gst_element_find_sink_pad_by_name(GstElement* element, const gchar* name)
{
GstIterator *iter = gst_element_iterate_sink_pads(element);
GValue vPad = G_VALUE_INIT;
GstPad* ret = NULL;
while (gst_iterator_next(iter, &vPad) == GST_ITERATOR_OK)
{
GstPad* pad = GST_PAD(g_value_get_object(&vPad));
const gchar* pad_name = gst_pad_get_name(pad);
if (g_strcmp0(pad_name, name) == 0)
{
ret = pad;
}
g_free(const_cast<gchar*>(pad_name));
if (ret != NULL)
{
break;
}
}
gst_iterator_free(iter);
return ret;
} // END gst_element_find_sink_pad_by_name()
static gboolean
fs_funnel_src_event (GstPad * pad, GstEvent * event)
{
GstElement *funnel;
GstIterator *iter;
GstPad *sinkpad;
gboolean result = FALSE;
gboolean done = FALSE;
funnel = gst_pad_get_parent_element (pad);
g_return_val_if_fail (funnel != NULL, FALSE);
iter = gst_element_iterate_sink_pads (funnel);
while (!done) {
switch (gst_iterator_next (iter, (gpointer) &sinkpad)) {
case GST_ITERATOR_OK:
gst_event_ref (event);
result |= gst_pad_push_event (sinkpad, event);
gst_object_unref (sinkpad);
break;
case GST_ITERATOR_RESYNC:
gst_iterator_resync (iter);
result = FALSE;
break;
case GST_ITERATOR_ERROR:
GST_WARNING_OBJECT (funnel, "Error iterating sinkpads");
case GST_ITERATOR_DONE:
done = TRUE;
break;
}
}
gst_iterator_free (iter);
gst_object_unref (funnel);
gst_event_unref (event);
return result;
}
static gboolean
_gst_context_run_query (GstElement * element, GstQuery * query,
GstPadDirection direction)
{
GstIteratorFoldFunction const func = context_pad_query;
GstIterator *it;
GValue res = { 0 };
g_value_init (&res, G_TYPE_BOOLEAN);
g_value_set_boolean (&res, FALSE);
/* Ask neighbour */
if (direction == GST_PAD_SRC)
it = gst_element_iterate_src_pads (element);
else
it = gst_element_iterate_sink_pads (element);
while (gst_iterator_fold (it, func, &res, query) == GST_ITERATOR_RESYNC)
gst_iterator_resync (it);
gst_iterator_free (it);
return g_value_get_boolean (&res);
}
static gboolean
gst_adder_query_latency (GstAdder * adder, GstQuery * query)
{
GstClockTime min, max;
gboolean live;
gboolean res;
GstIterator *it;
gboolean done;
res = TRUE;
done = FALSE;
live = FALSE;
min = 0;
max = GST_CLOCK_TIME_NONE;
/* Take maximum of all latency values */
it = gst_element_iterate_sink_pads (GST_ELEMENT_CAST (adder));
while (!done) {
GstIteratorResult ires;
gpointer item;
ires = gst_iterator_next (it, &item);
switch (ires) {
case GST_ITERATOR_DONE:
done = TRUE;
break;
case GST_ITERATOR_OK:
{
GstPad *pad = GST_PAD_CAST (item);
GstQuery *peerquery;
GstClockTime min_cur, max_cur;
gboolean live_cur;
peerquery = gst_query_new_latency ();
/* Ask peer for latency */
res &= gst_pad_peer_query (pad, peerquery);
/* take max from all valid return values */
if (res) {
gst_query_parse_latency (peerquery, &live_cur, &min_cur, &max_cur);
if (min_cur > min)
min = min_cur;
if (max_cur != GST_CLOCK_TIME_NONE &&
((max != GST_CLOCK_TIME_NONE && max_cur > max) ||
(max == GST_CLOCK_TIME_NONE)))
max = max_cur;
live = live || live_cur;
}
gst_query_unref (peerquery);
gst_object_unref (pad);
break;
}
case GST_ITERATOR_RESYNC:
live = FALSE;
min = 0;
max = GST_CLOCK_TIME_NONE;
res = TRUE;
gst_iterator_resync (it);
break;
default:
res = FALSE;
done = TRUE;
break;
}
}
gst_iterator_free (it);
if (res) {
/* store the results */
GST_DEBUG_OBJECT (adder, "Calculated total latency: live %s, min %"
GST_TIME_FORMAT ", max %" GST_TIME_FORMAT,
(live ? "yes" : "no"), GST_TIME_ARGS (min), GST_TIME_ARGS (max));
gst_query_set_latency (query, live, min, max);
}
return res;
}
static void
suboverlay_child_added_cb (GstElement * suboverlay, GstElement * child,
InsanityTest * test)
{
GstIterator *it = NULL;
GstPad *render_sub_sink, *tmppad;
GstElementFactory *fact;
const gchar *klass, *name;
gulong probe_id;
GValue value = { 0, };
gboolean is_renderer = FALSE;
/* cc-ed from -base/gstsubtitleoveraly.c */
fact = gst_element_get_factory (child);
klass = gst_element_factory_get_metadata (fact, GST_ELEMENT_METADATA_KLASS);
if (GST_IS_BIN (child))
return;
name = gst_plugin_feature_get_name (GST_PLUGIN_FEATURE_CAST (fact));
if (g_strrstr (klass, "Overlay/Subtitle") != NULL ||
g_strrstr (klass, "Overlay/SubPicture") != NULL)
is_renderer = TRUE;
else if (g_strcmp0 (name, "textoverlay") == 0)
is_renderer = TRUE;
if (is_renderer == FALSE)
goto done;
LOG (test, "Renderer found: %s", name);
/* Now adding the probe to the renderer "subtitle" sink pad */
it = gst_element_iterate_sink_pads (child);
if (gst_iterator_find_custom (it,
(GCompareFunc) find_renderer_subtitle_sinkpad, &value, NULL)) {
render_sub_sink = g_value_get_object (&value);
} else {
goto done;
}
if (insanity_gst_test_add_data_probe (INSANITY_GST_TEST (test),
GST_BIN (glob_pipeline), GST_OBJECT_NAME (child),
GST_ELEMENT_NAME (render_sub_sink), &tmppad, &probe_id,
&renderer_probe_cb, NULL, NULL) == TRUE) {
glob_renderer_sink_probe = g_slice_new0 (ProbeContext);
glob_renderer_sink_probe->probe_id = probe_id;
glob_renderer_sink_probe->pad = render_sub_sink;
glob_renderer_sink_probe->element = child;
glob_renderer_sink_probe->test = test;
glob_renderer_sink_probe->waiting_first_segment = TRUE;
insanity_test_validate_checklist_item (test, "install-probes", TRUE, NULL);
} else {
insanity_test_validate_checklist_item (test, "install-probes", FALSE,
"Failed to attach probe to fakesink");
insanity_test_done (test);
goto done;
}
done:
if (it)
gst_iterator_free (it);
}
/* FIXME, the duration query should reflect how long you will produce
* data, that is the amount of stream time until you will emit EOS.
*
* For synchronized mixing this is always the max of all the durations
* of upstream since we emit EOS when all of them finished.
*
* We don't do synchronized mixing so this really depends on where the
* streams where punched in and what their relative offsets are against
* eachother which we can get from the first timestamps we see.
*
* When we add a new stream (or remove a stream) the duration might
* also become invalid again and we need to post a new DURATION
* message to notify this fact to the parent.
* For now we take the max of all the upstream elements so the simple
* cases work at least somewhat.
*/
static gboolean
gst_adder_query_duration (GstAdder * adder, GstQuery * query)
{
gint64 max;
gboolean res;
GstFormat format;
GstIterator *it;
gboolean done;
/* parse format */
gst_query_parse_duration (query, &format, NULL);
max = -1;
res = TRUE;
done = FALSE;
it = gst_element_iterate_sink_pads (GST_ELEMENT_CAST (adder));
while (!done) {
GstIteratorResult ires;
gpointer item;
ires = gst_iterator_next (it, &item);
switch (ires) {
case GST_ITERATOR_DONE:
done = TRUE;
break;
case GST_ITERATOR_OK:
{
GstPad *pad = GST_PAD_CAST (item);
gint64 duration;
/* ask sink peer for duration */
res &= gst_pad_query_peer_duration (pad, &format, &duration);
/* take max from all valid return values */
if (res) {
/* valid unknown length, stop searching */
if (duration == -1) {
max = duration;
done = TRUE;
}
/* else see if bigger than current max */
else if (duration > max)
max = duration;
}
gst_object_unref (pad);
break;
}
case GST_ITERATOR_RESYNC:
max = -1;
res = TRUE;
gst_iterator_resync (it);
break;
default:
res = FALSE;
done = TRUE;
break;
}
}
gst_iterator_free (it);
if (res) {
/* and store the max */
GST_DEBUG_OBJECT (adder, "Total duration in format %s: %"
GST_TIME_FORMAT, gst_format_get_name (format), GST_TIME_ARGS (max));
gst_query_set_duration (query, format, max);
}
return res;
}
/**
* gst_aggregator_iterate_sinkpads:
* @self: The #GstAggregator
* @func: The function to call.
* @user_data: The data to pass to @func.
*
* Iterate the sinkpads of aggregator to call a function on them.
*
* This method guarantees that @func will be called only once for each
* sink pad.
*/
gboolean
gst_aggregator_iterate_sinkpads (GstAggregator * self,
GstAggregatorPadForeachFunc func, gpointer user_data)
{
gboolean result = FALSE;
GstIterator *iter;
gboolean done = FALSE;
GValue item = { 0, };
GList *seen_pads = NULL;
iter = gst_element_iterate_sink_pads (GST_ELEMENT (self));
if (!iter)
goto no_iter;
while (!done) {
switch (gst_iterator_next (iter, &item)) {
case GST_ITERATOR_OK:
{
GstPad *pad;
pad = g_value_get_object (&item);
/* if already pushed, skip. FIXME, find something faster to tag pads */
if (pad == NULL || g_list_find (seen_pads, pad)) {
g_value_reset (&item);
break;
}
GST_LOG_OBJECT (self, "calling function on pad %s:%s",
GST_DEBUG_PAD_NAME (pad));
result = func (self, pad, user_data);
done = !result;
seen_pads = g_list_prepend (seen_pads, pad);
g_value_reset (&item);
break;
}
case GST_ITERATOR_RESYNC:
gst_iterator_resync (iter);
break;
case GST_ITERATOR_ERROR:
GST_ERROR_OBJECT (self,
"Could not iterate over internally linked pads");
done = TRUE;
break;
case GST_ITERATOR_DONE:
done = TRUE;
break;
}
}
g_value_unset (&item);
gst_iterator_free (iter);
if (seen_pads == NULL) {
GST_DEBUG_OBJECT (self, "No pad seen");
return FALSE;
}
g_list_free (seen_pads);
no_iter:
return result;
}
static HRESULT Gstreamer_transform_ConnectInput(GstTfImpl *This, const AM_MEDIA_TYPE *amt, GstCaps *capsin, GstCaps *capsout)
{
GstIterator *it;
BOOL done = FALSE, found = FALSE;
int ret;
TRACE("%p %p %p %p\n", This, amt, capsin, capsout);
mark_wine_thread();
This->filter = gst_element_factory_make(This->gstreamer_name, NULL);
if (!This->filter) {
FIXME("Could not make %s filter\n", This->gstreamer_name);
return E_FAIL;
}
This->my_src = gst_pad_new("yuvsrc", GST_PAD_SRC);
gst_pad_set_element_private (This->my_src, This);
gst_pad_set_active(This->my_src, 1);
This->my_sink = gst_pad_new("yuvsink", GST_PAD_SINK);
gst_pad_set_chain_function(This->my_sink, got_data_wrapper);
gst_pad_set_element_private (This->my_sink, This);
gst_pad_set_active(This->my_sink, 1);
it = gst_element_iterate_sink_pads(This->filter);
while (!done) {
GValue item = {0};
switch (gst_iterator_next(it, &item)) {
case GST_ITERATOR_RESYNC:
gst_iterator_resync (it);
break;
case GST_ITERATOR_OK:
This->their_sink = g_value_get_object(&item);
gst_object_ref(This->their_sink);
g_value_reset(&item);
case GST_ITERATOR_ERROR:
case GST_ITERATOR_DONE:
done = TRUE;
break;
}
}
gst_iterator_free(it);
if (!This->their_sink) {
ERR("Could not find sink on filter %s\n", This->gstreamer_name);
return E_FAIL;
}
it = gst_element_iterate_src_pads(This->filter);
gst_iterator_resync(it);
done = FALSE;
while (!done) {
GValue item = {0};
switch (gst_iterator_next(it, &item)) {
case GST_ITERATOR_RESYNC:
gst_iterator_resync (it);
break;
case GST_ITERATOR_OK:
This->their_src = g_value_get_object(&item);
gst_object_ref(This->their_src);
g_value_reset(&item);
case GST_ITERATOR_ERROR:
case GST_ITERATOR_DONE:
done = TRUE;
break;
}
}
gst_iterator_free(it);
found = !!This->their_src;
if (!found)
g_signal_connect(This->filter, "pad-added", G_CALLBACK(Gstreamer_transform_pad_added_wrapper), This);
ret = gst_pad_link(This->my_src, This->their_sink);
if (ret < 0) {
WARN("Failed to link with %i\n", ret);
return E_FAIL;
}
ret = gst_pad_set_caps(This->my_src, capsin);
if (ret < 0) {
WARN("Failed to set caps on own source with %i\n", ret);
return E_FAIL;
}
if (found)
Gstreamer_transform_pad_added(This->filter, This->their_src, This);
if (!gst_pad_is_linked(This->my_sink))
return E_FAIL;
ret = gst_pad_set_caps(This->my_sink, capsout);
if (ret < 0) {
WARN("Failed to set caps on own sink with %i\n", ret);
return E_FAIL;
}
TRACE("Connected\n");
return S_OK;
}
static gboolean
validate_codec_profile (FsCodec *codec,const gchar *bin_description,
gboolean is_send)
{
GError *error = NULL;
GstElement *bin = NULL;
guint src_pad_count = 0, sink_pad_count = 0;
GstCaps *caps;
gpointer matching_pad = NULL;
GstIterator *iter;
bin = parse_bin_from_description_all_linked (bin_description,
&src_pad_count, &sink_pad_count, &error);
/* if could not build bin, fail */
if (!bin)
{
GST_WARNING ("Could not build profile (%s): %s", bin_description,
error->message);
g_clear_error (&error);
return FALSE;
}
g_clear_error (&error);
caps = fs_codec_to_gst_caps (codec);
if (is_send)
iter = gst_element_iterate_src_pads (bin);
else
iter = gst_element_iterate_sink_pads (bin);
matching_pad = gst_iterator_find_custom (iter, find_matching_pad, caps);
gst_iterator_free (iter);
if (!matching_pad)
{
GST_WARNING ("Invalid profile (%s), has no %s pad that matches the codec"
" details", is_send ? "src" : "sink", bin_description);
gst_caps_unref (caps);
gst_object_unref (bin);
return FALSE;
}
gst_caps_unref (caps);
gst_object_unref (bin);
if (is_send)
{
if (src_pad_count == 0)
{
GST_WARNING ("Invalid profile (%s), has 0 src pad", bin_description);
return FALSE;
}
}
else
{
if (src_pad_count != 1)
{
GST_WARNING ("Invalid profile (%s), has %u src pads, should have one",
bin_description, src_pad_count);
return FALSE;
}
}
if (sink_pad_count != 1)
{
GST_WARNING ("Invalid profile (%s), has %u sink pads, should have one",
bin_description, sink_pad_count);
return FALSE;
}
return TRUE;
}
static HRESULT Gstreamer_transform_ConnectInput(GstTfImpl *This, const AM_MEDIA_TYPE *amt, GstCaps *capsin, GstCaps *capsout) {
GstIterator *it;
int done = 0, found = 0, ret;
This->filter = gst_element_factory_make(This->gstreamer_name, NULL);
if (!This->filter) {
FIXME("Could not make %s filter\n", This->gstreamer_name);
return E_FAIL;
}
This->my_src = gst_pad_new(NULL, GST_PAD_SRC);
gst_pad_set_element_private (This->my_src, This);
This->my_sink = gst_pad_new(NULL, GST_PAD_SINK);
gst_pad_set_chain_function(This->my_sink, got_data);
gst_pad_set_bufferalloc_function(This->my_sink, request_buffer);
gst_pad_set_element_private (This->my_sink, This);
ret = gst_pad_set_caps(This->my_src, capsin);
if (ret < 0) {
WARN("Failed to set caps on own source with %i\n", ret);
return E_FAIL;
}
ret = gst_pad_set_caps(This->my_sink, capsout);
if (ret < 0) {
WARN("Failed to set caps on own sink with %i\n", ret);
return E_FAIL;
}
it = gst_element_iterate_sink_pads(This->filter);
while (!done) {
gpointer item;
switch (gst_iterator_next(it, &item)) {
case GST_ITERATOR_RESYNC:
gst_iterator_resync (it);
break;
case GST_ITERATOR_OK:
This->their_sink = item;
case GST_ITERATOR_ERROR:
case GST_ITERATOR_DONE:
done = 1;
break;
}
}
gst_iterator_free(it);
if (!This->their_sink) {
ERR("Could not find sink on filter %s\n", This->gstreamer_name);
return E_FAIL;
}
it = gst_element_iterate_src_pads(This->filter);
gst_iterator_resync(it);
done = 0;
while (!done) {
gpointer item;
switch (gst_iterator_next(it, &item)) {
case GST_ITERATOR_RESYNC:
gst_iterator_resync (it);
break;
case GST_ITERATOR_OK:
This->their_src = item;
case GST_ITERATOR_ERROR:
case GST_ITERATOR_DONE:
done = 1;
break;
}
}
gst_iterator_free(it);
found = !!This->their_src;
if (!found)
g_signal_connect(This->filter, "pad-added", G_CALLBACK(Gstreamer_transform_pad_added), This);
ret = gst_pad_link(This->my_src, This->their_sink);
if (ret < 0) {
WARN("Failed to link with %i\n", ret);
return E_FAIL;
}
if (found)
Gstreamer_transform_pad_added(This->filter, This->their_src, This);
if (!gst_pad_is_linked(This->my_sink))
return E_FAIL;
TRACE("Connected\n");
return S_OK;
}
static gboolean
gst_live_adder_query_pos_dur (GstLiveAdder * adder, GstFormat informat,
gboolean position, gint64 * outvalue)
{
gint64 max = G_MININT64;
gboolean res = TRUE;
GstIterator *it;
gboolean done = FALSE;
it = gst_element_iterate_sink_pads (GST_ELEMENT_CAST (adder));
while (!done) {
GstIteratorResult ires;
gpointer item;
GstFormat format = informat;
ires = gst_iterator_next (it, &item);
switch (ires) {
case GST_ITERATOR_DONE:
done = TRUE;
break;
case GST_ITERATOR_OK:
{
GstPad *pad = GST_PAD_CAST (item);
gint64 value;
gboolean curres;
/* ask sink peer for duration */
if (position)
curres = gst_pad_query_peer_position (pad, &format, &value);
else
curres = gst_pad_query_peer_duration (pad, &format, &value);
/* take max from all valid return values */
/* Only if the format is the one we requested, otherwise ignore it ?
*/
if (curres && format == informat) {
res &= curres;
/* valid unknown length, stop searching */
if (value == -1) {
max = value;
done = TRUE;
} else if (value > max) {
max = value;
}
}
break;
}
case GST_ITERATOR_RESYNC:
max = -1;
res = TRUE;
break;
default:
res = FALSE;
done = TRUE;
break;
}
}
gst_iterator_free (it);
if (res)
*outvalue = max;
return res;
}
static gboolean
gst_interleave_src_query_duration (GstInterleave * self, GstQuery * query)
{
gint64 max;
gboolean res;
GstFormat format;
GstIterator *it;
gboolean done;
/* parse format */
gst_query_parse_duration (query, &format, NULL);
max = -1;
res = TRUE;
done = FALSE;
/* Take maximum of all durations */
it = gst_element_iterate_sink_pads (GST_ELEMENT_CAST (self));
while (!done) {
GstIteratorResult ires;
GValue item = { 0, };
ires = gst_iterator_next (it, &item);
switch (ires) {
case GST_ITERATOR_DONE:
done = TRUE;
break;
case GST_ITERATOR_OK:
{
GstPad *pad = GST_PAD_CAST (g_value_dup_object (&item));
gint64 duration;
/* ask sink peer for duration */
res &= gst_pad_peer_query_duration (pad, format, &duration);
/* take max from all valid return values */
if (res) {
/* valid unknown length, stop searching */
if (duration == -1) {
max = duration;
done = TRUE;
}
/* else see if bigger than current max */
else if (duration > max)
max = duration;
}
gst_object_unref (pad);
g_value_unset (&item);
break;
}
case GST_ITERATOR_RESYNC:
max = -1;
res = TRUE;
gst_iterator_resync (it);
break;
default:
res = FALSE;
done = TRUE;
break;
}
}
gst_iterator_free (it);
if (res) {
/* If in bytes format we have to multiply with the number of channels
* to get the correct results. All other formats should be fine */
if (format == GST_FORMAT_BYTES && max != -1)
max *= self->channels;
/* and store the max */
GST_DEBUG_OBJECT (self, "Total duration in format %s: %"
GST_TIME_FORMAT, gst_format_get_name (format), GST_TIME_ARGS (max));
gst_query_set_duration (query, format, max);
}
return res;
}
/*
* debug_dump_element:
* @bin: the bin that should be analyzed
* @out: file to write to
* @indent: level of graph indentation
*
* Helper for gst_debug_bin_to_dot_file() to recursively dump a pipeline.
*/
static void
debug_dump_element (GstBin * bin, GstDebugGraphDetails details,
GString * str, const gint indent)
{
GstIterator *element_iter, *pad_iter;
gboolean elements_done, pads_done;
GValue item = { 0, };
GValue item2 = { 0, };
GstElement *element;
GstPad *pad = NULL;
guint src_pads, sink_pads;
gchar *element_name;
gchar *state_name = NULL;
gchar *param_name = NULL;
const gchar *spc = &spaces[MAX (sizeof (spaces) - (1 + indent * 2), 0)];
element_iter = gst_bin_iterate_elements (bin);
elements_done = FALSE;
while (!elements_done) {
switch (gst_iterator_next (element_iter, &item)) {
case GST_ITERATOR_OK:
element = g_value_get_object (&item);
element_name = debug_dump_make_object_name (GST_OBJECT (element));
if (details & GST_DEBUG_GRAPH_SHOW_STATES) {
state_name = debug_dump_get_element_state (GST_ELEMENT (element));
}
if (details & GST_DEBUG_GRAPH_SHOW_NON_DEFAULT_PARAMS) {
param_name = debug_dump_get_element_params (GST_ELEMENT (element),
details);
}
/* elements */
g_string_append_printf (str, "%ssubgraph cluster_%s {\n", spc,
element_name);
g_string_append_printf (str, "%s fontname=\"Bitstream Vera Sans\";\n",
spc);
g_string_append_printf (str, "%s fontsize=\"8\";\n", spc);
g_string_append_printf (str, "%s style=filled;\n", spc);
g_string_append_printf (str, "%s color=black;\n\n", spc);
g_string_append_printf (str, "%s label=\"%s\\n%s%s%s\";\n", spc,
G_OBJECT_TYPE_NAME (element), GST_OBJECT_NAME (element),
(state_name ? state_name : ""), (param_name ? param_name : "")
);
if (state_name) {
g_free (state_name);
state_name = NULL;
}
if (param_name) {
g_free (param_name);
param_name = NULL;
}
g_free (element_name);
src_pads = sink_pads = 0;
if ((pad_iter = gst_element_iterate_sink_pads (element))) {
debug_dump_element_pads (pad_iter, pad, element, details, str,
indent, &src_pads, &sink_pads);
gst_iterator_free (pad_iter);
}
if ((pad_iter = gst_element_iterate_src_pads (element))) {
debug_dump_element_pads (pad_iter, pad, element, details, str,
indent, &src_pads, &sink_pads);
gst_iterator_free (pad_iter);
}
if (GST_IS_BIN (element)) {
g_string_append_printf (str, "%s fillcolor=\"#ffffff\";\n", spc);
/* recurse */
debug_dump_element (GST_BIN (element), details, str, indent + 1);
} else {
if (src_pads && !sink_pads)
g_string_append_printf (str, "%s fillcolor=\"#ffaaaa\";\n", spc);
else if (!src_pads && sink_pads)
g_string_append_printf (str, "%s fillcolor=\"#aaaaff\";\n", spc);
else if (src_pads && sink_pads)
g_string_append_printf (str, "%s fillcolor=\"#aaffaa\";\n", spc);
else
g_string_append_printf (str, "%s fillcolor=\"#ffffff\";\n", spc);
}
g_string_append_printf (str, "%s}\n\n", spc);
if ((pad_iter = gst_element_iterate_pads (element))) {
pads_done = FALSE;
while (!pads_done) {
switch (gst_iterator_next (pad_iter, &item2)) {
case GST_ITERATOR_OK:
pad = g_value_get_object (&item2);
if (gst_pad_is_linked (pad)) {
if (gst_pad_get_direction (pad) == GST_PAD_SRC) {
debug_dump_element_pad_link (pad, element, details, str,
indent);
} else {
GstPad *peer_pad = gst_pad_get_peer (pad);
if (peer_pad) {
if (!GST_IS_GHOST_PAD (peer_pad)
&& GST_IS_PROXY_PAD (peer_pad)) {
debug_dump_element_pad_link (peer_pad, NULL, details,
str, indent);
}
gst_object_unref (peer_pad);
}
}
}
g_value_reset (&item2);
break;
case GST_ITERATOR_RESYNC:
gst_iterator_resync (pad_iter);
break;
case GST_ITERATOR_ERROR:
case GST_ITERATOR_DONE:
pads_done = TRUE;
break;
}
}
g_value_unset (&item2);
gst_iterator_free (pad_iter);
}
g_value_reset (&item);
break;
case GST_ITERATOR_RESYNC:
gst_iterator_resync (element_iter);
break;
case GST_ITERATOR_ERROR:
case GST_ITERATOR_DONE:
elements_done = TRUE;
break;
}
}
g_value_unset (&item);
gst_iterator_free (element_iter);
}
static gboolean
gst_frei0r_mixer_src_query_duration (GstFrei0rMixer * self, GstQuery * query)
{
gint64 min;
gboolean res;
GstFormat format;
GstIterator *it;
gboolean done;
/* parse format */
gst_query_parse_duration (query, &format, NULL);
min = -1;
res = TRUE;
done = FALSE;
/* Take minimum of all durations */
it = gst_element_iterate_sink_pads (GST_ELEMENT_CAST (self));
while (!done) {
GstIteratorResult ires;
GValue item = { 0 };
ires = gst_iterator_next (it, &item);
switch (ires) {
case GST_ITERATOR_DONE:
done = TRUE;
break;
case GST_ITERATOR_OK:
{
GstPad *pad = g_value_get_object (&item);
gint64 duration;
/* ask sink peer for duration */
res &= gst_pad_peer_query_duration (pad, format, &duration);
/* take min from all valid return values */
if (res) {
/* valid unknown length, stop searching */
if (duration == -1) {
min = duration;
done = TRUE;
}
/* else see if smaller than current min */
else if (duration < min)
min = duration;
}
g_value_reset (&item);
break;
}
case GST_ITERATOR_RESYNC:
min = -1;
res = TRUE;
gst_iterator_resync (it);
break;
default:
res = FALSE;
done = TRUE;
break;
}
g_value_unset (&item);
}
gst_iterator_free (it);
if (res) {
/* and store the min */
GST_DEBUG_OBJECT (self, "Total duration in format %s: %"
GST_TIME_FORMAT, gst_format_get_name (format), GST_TIME_ARGS (min));
gst_query_set_duration (query, format, min);
}
return res;
}
/* Fetches a compatible pad on the target element which isn't already
* linked */
static GstPad *
get_compatible_unlinked_pad (GstElement * element, GstPad * pad)
{
GstPad *res = NULL;
GstIterator *pads;
gboolean done = FALSE;
GstCaps *srccaps;
if (G_UNLIKELY (pad == NULL))
goto no_pad;
GST_DEBUG ("element : %s, pad %s:%s",
GST_ELEMENT_NAME (element), GST_DEBUG_PAD_NAME (pad));
if (GST_PAD_DIRECTION (pad) == GST_PAD_SRC)
pads = gst_element_iterate_sink_pads (element);
else
pads = gst_element_iterate_src_pads (element);
srccaps = gst_pad_get_caps_reffed (pad);
GST_DEBUG ("srccaps %" GST_PTR_FORMAT, srccaps);
while (!done) {
gpointer padptr;
switch (gst_iterator_next (pads, &padptr)) {
case GST_ITERATOR_OK:
{
GstPad *testpad = (GstPad *) padptr;
if (gst_pad_is_linked (testpad)) {
gst_object_unref (testpad);
} else {
GstCaps *sinkcaps = gst_pad_get_caps_reffed (testpad);
GST_DEBUG ("sinkccaps %" GST_PTR_FORMAT, sinkcaps);
if (gst_caps_can_intersect (srccaps, sinkcaps)) {
res = testpad;
done = TRUE;
} else
gst_object_unref (testpad);
gst_caps_unref (sinkcaps);
}
}
break;
case GST_ITERATOR_DONE:
case GST_ITERATOR_ERROR:
done = TRUE;
break;
case GST_ITERATOR_RESYNC:
gst_iterator_resync (pads);
break;
}
}
gst_iterator_free (pads);
gst_caps_unref (srccaps);
return res;
no_pad:
{
GST_ERROR ("No pad to check against");
return NULL;
}
}
static gboolean
mpegtsmux_src_event (GstPad * pad, GstEvent * event)
{
MpegTsMux *mux = GST_MPEG_TSMUX (gst_pad_get_parent (pad));
gboolean res = TRUE;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CUSTOM_UPSTREAM:
{
GstIterator *iter;
GstIteratorResult iter_ret;
GstPad *sinkpad;
GstClockTime running_time;
gboolean all_headers, done;
guint count;
if (!gst_video_event_is_force_key_unit (event))
break;
gst_video_event_parse_upstream_force_key_unit (event,
&running_time, &all_headers, &count);
GST_INFO_OBJECT (mux, "received upstream force-key-unit event, "
"seqnum %d running_time %" GST_TIME_FORMAT " all_headers %d count %d",
gst_event_get_seqnum (event), GST_TIME_ARGS (running_time),
all_headers, count);
if (!all_headers)
break;
mux->pending_key_unit_ts = running_time;
gst_event_replace (&mux->force_key_unit_event, event);
iter = gst_element_iterate_sink_pads (GST_ELEMENT_CAST (mux));
done = FALSE;
while (!done) {
gboolean res = FALSE, tmp;
iter_ret = gst_iterator_next (iter, (gpointer *) & sinkpad);
switch (iter_ret) {
case GST_ITERATOR_DONE:
done = TRUE;
break;
case GST_ITERATOR_OK:
GST_INFO_OBJECT (mux, "forwarding to %s",
gst_pad_get_name (sinkpad));
tmp = gst_pad_push_event (sinkpad, gst_event_ref (event));
GST_INFO_OBJECT (mux, "result %d", tmp);
/* succeed if at least one pad succeeds */
res |= tmp;
gst_object_unref (sinkpad);
break;
case GST_ITERATOR_ERROR:
done = TRUE;
break;
case GST_ITERATOR_RESYNC:
break;
}
}
gst_event_unref (event);
break;
}
default:
res = gst_pad_event_default (pad, event);
break;
}
gst_object_unref (mux);
return res;
}
static HRESULT WINAPI Gstreamer_YUV_SetMediaType(TransformFilter *tf, PIN_DIRECTION dir, const AM_MEDIA_TYPE *amt) {
GstTfImpl *This = (GstTfImpl*)tf;
GstCaps *capsin, *capsout;
AM_MEDIA_TYPE *outpmt = &This->tf.pmt;
HRESULT hr;
int avgtime;
LONG width, height;
if (dir != PINDIR_INPUT)
return S_OK;
if (Gstreamer_YUV_QueryConnect(&This->tf, amt) == S_FALSE || !amt->pbFormat)
return E_FAIL;
FreeMediaType(outpmt);
CopyMediaType(outpmt, amt);
if (IsEqualGUID(&amt->formattype, &FORMAT_VideoInfo)) {
VIDEOINFOHEADER *vih = (VIDEOINFOHEADER*)outpmt->pbFormat;
avgtime = vih->AvgTimePerFrame;
width = vih->bmiHeader.biWidth;
height = vih->bmiHeader.biHeight;
if (vih->bmiHeader.biHeight > 0)
vih->bmiHeader.biHeight = -vih->bmiHeader.biHeight;
vih->bmiHeader.biBitCount = 24;
vih->bmiHeader.biCompression = BI_RGB;
vih->bmiHeader.biSizeImage = width * abs(height) * 3;
} else {
VIDEOINFOHEADER2 *vih = (VIDEOINFOHEADER2*)outpmt->pbFormat;
avgtime = vih->AvgTimePerFrame;
width = vih->bmiHeader.biWidth;
height = vih->bmiHeader.biHeight;
if (vih->bmiHeader.biHeight > 0)
vih->bmiHeader.biHeight = -vih->bmiHeader.biHeight;
vih->bmiHeader.biBitCount = 24;
vih->bmiHeader.biCompression = BI_RGB;
vih->bmiHeader.biSizeImage = width * abs(height) * 3;
}
if (!avgtime)
avgtime = 10000000 / 30;
outpmt->subtype = MEDIASUBTYPE_RGB24;
capsin = gst_caps_new_simple("video/x-raw-yuv",
"format", GST_TYPE_FOURCC, amt->subtype.Data1,
"width", G_TYPE_INT, width,
"height", G_TYPE_INT, height,
"framerate", GST_TYPE_FRACTION, 10000000, (int)avgtime,
NULL);
capsout = gst_caps_new_simple("video/x-raw-rgb",
"bpp", G_TYPE_INT, 24,
"depth", G_TYPE_INT, 24,
"endianness", G_TYPE_INT, 4321,
"red_mask", G_TYPE_INT, 0xff,
"green_mask", G_TYPE_INT, 0xff00,
"blue_mask", G_TYPE_INT, 0xff0000,
"width", G_TYPE_INT, width,
"height", G_TYPE_INT, height,
"framerate", GST_TYPE_FRACTION, 10000000, (int)avgtime,
NULL);
This->filter2 = gst_element_factory_make("videoflip", NULL);
if (This->filter2) {
GstIterator *it;
int done = 0;
g_object_set(This->filter2, "method", 5, NULL);
it = gst_element_iterate_sink_pads(This->filter2);
while (!done) {
gpointer item;
switch (gst_iterator_next(it, &item)) {
case GST_ITERATOR_RESYNC:
gst_iterator_resync (it);
break;
case GST_ITERATOR_OK:
This->their_sink2 = item;
case GST_ITERATOR_ERROR:
case GST_ITERATOR_DONE:
done = 1;
break;
}
}
gst_iterator_free(it);
done = 0;
it = gst_element_iterate_src_pads(This->filter2);
while (!done) {
gpointer item;
switch (gst_iterator_next(it, &item)) {
case GST_ITERATOR_RESYNC:
gst_iterator_resync (it);
break;
case GST_ITERATOR_OK:
This->their_src2 = item;
case GST_ITERATOR_ERROR:
case GST_ITERATOR_DONE:
done = 1;
break;
}
}
gst_iterator_free(it);
if (!This->their_src2 || !This->their_sink2) {
if (This->their_src2)
gst_object_unref(This->their_src2);
if (This->their_sink2)
gst_object_unref(This->their_sink2);
gst_object_unref(This->filter2);
This->filter2 = 0;
}
}
hr = Gstreamer_transform_ConnectInput(This, amt, capsin, capsout);
gst_caps_unref(capsin);
gst_caps_unref(capsout);
This->cbBuffer = width * height * 4;
return hr;
}
/**
* gst_composite_adjust_pip:
* @param composite The GstComposite instance
* @param x the X position of the PIP
* @param y the Y position of the PIP
* @param w the width of the PIP
* @param h the height of the PIP
* @return PIP has been changed succefully
*
* Change the PIP position and size.
*/
gboolean
gst_composite_adjust_pip (GstComposite * composite, gint x, gint y,
gint w, gint h)
{
gboolean result = FALSE;
GstIterator *iter = NULL;
GValue value = { 0 };
GstElement *element = NULL;
gboolean done = FALSE;
g_return_val_if_fail (GST_IS_COMPOSITE (composite), FALSE);
GST_COMPOSITE_LOCK (composite);
if (composite->adjusting) {
WARN ("last PIP adjustment request is progressing");
goto end;
}
composite->b_x = x;
composite->b_y = y;
if (composite->b_width != w || composite->b_height != h) {
composite->b_width = w;
composite->b_height = h;
composite->adjusting = TRUE;
gst_worker_stop (GST_WORKER (composite));
result = TRUE;
goto end;
}
element = gst_worker_get_element (GST_WORKER (composite), "mix");
iter = gst_element_iterate_sink_pads (element);
while (iter && !done) {
switch (gst_iterator_next (iter, &value)) {
case GST_ITERATOR_OK:
{
GstPad *pad = g_value_get_object (&value);
if (g_strcmp0 (gst_pad_get_name (pad), "sink_1") == 0) {
g_object_set (pad, "xpos", composite->b_x,
"ypos", composite->b_y, NULL);
done = TRUE;
result = TRUE;
}
g_value_reset (&value);
}
break;
case GST_ITERATOR_RESYNC:
gst_iterator_resync (iter);
break;
case GST_ITERATOR_DONE:
done = TRUE;
break;
default:
/* iterator returned _ERROR or premature end with _OK,
* mark an error and exit */
done = TRUE;
result = FALSE;
break;
}
}
if (G_IS_VALUE (&value))
g_value_unset (&value);
if (iter)
gst_iterator_free (iter);
composite->adjusting = FALSE;
/*
if (!result) {
WARN ("failed to adjust PIP: %d, %d, %d, %d", x, y, w, h);
}
*/
end:
GST_COMPOSITE_UNLOCK (composite);
return result;
}
static gboolean
gst_live_adder_query (GstPad * pad, GstQuery * query)
{
GstLiveAdder *adder;
gboolean res = FALSE;
adder = GST_LIVE_ADDER (gst_pad_get_parent (pad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_LATENCY:
{
/* We need to send the query upstream and add the returned latency to our
* own */
GstClockTime min_latency = 0, max_latency = G_MAXUINT64;
gpointer item;
GstIterator *iter = NULL;
gboolean done = FALSE;
iter = gst_element_iterate_sink_pads (GST_ELEMENT (adder));
while (!done) {
switch (gst_iterator_next (iter, &item)) {
case GST_ITERATOR_OK:
{
GstPad *sinkpad = item;
GstClockTime pad_min_latency, pad_max_latency;
gboolean pad_us_live;
if (gst_pad_peer_query (sinkpad, query)) {
gst_query_parse_latency (query, &pad_us_live, &pad_min_latency,
&pad_max_latency);
res = TRUE;
GST_DEBUG_OBJECT (adder, "Peer latency for pad %s: min %"
GST_TIME_FORMAT " max %" GST_TIME_FORMAT,
GST_PAD_NAME (sinkpad),
GST_TIME_ARGS (pad_min_latency),
GST_TIME_ARGS (pad_max_latency));
min_latency = MAX (pad_min_latency, min_latency);
max_latency = MIN (pad_max_latency, max_latency);
}
gst_object_unref (item);
}
break;
case GST_ITERATOR_RESYNC:
min_latency = 0;
max_latency = G_MAXUINT64;
gst_iterator_resync (iter);
break;
case GST_ITERATOR_ERROR:
GST_ERROR_OBJECT (adder, "Error looping sink pads");
done = TRUE;
break;
case GST_ITERATOR_DONE:
done = TRUE;
break;
}
}
gst_iterator_free (iter);
if (res) {
GstClockTime my_latency = adder->latency_ms * GST_MSECOND;
GST_OBJECT_LOCK (adder);
adder->peer_latency = min_latency;
min_latency += my_latency;
GST_OBJECT_UNLOCK (adder);
/* Make sure we don't risk an overflow */
if (max_latency < G_MAXUINT64 - my_latency)
max_latency += my_latency;
else
max_latency = G_MAXUINT64;
gst_query_set_latency (query, TRUE, min_latency, max_latency);
GST_DEBUG_OBJECT (adder, "Calculated total latency : min %"
GST_TIME_FORMAT " max %" GST_TIME_FORMAT,
GST_TIME_ARGS (min_latency), GST_TIME_ARGS (max_latency));
}
break;
}
case GST_QUERY_DURATION:
res = gst_live_adder_query_duration (adder, query);
break;
case GST_QUERY_POSITION:
res = gst_live_adder_query_position (adder, query);
break;
default:
res = gst_pad_query_default (pad, query);
break;
}
gst_object_unref (adder);
return res;
}
