static void
on_new_pad (GstElement * dec, GstPad * pad, GstElement * sinkElement)
{
GstPad *sinkpad;
if(pad==NULL) return;
if(sinkElement==NULL) return;
sinkpad = gst_element_get_static_pad (sinkElement, "sink");
if(sinkpad==NULL) return;
if (!gst_pad_is_linked (sinkpad)) {
GstPadLinkReturn ret = gst_pad_link (pad, sinkpad);
if(ret == GST_PAD_LINK_NOFORMAT) {
GstCaps* a, *b;
a = gst_pad_get_current_caps(pad);
b = gst_pad_get_current_caps(sinkpad);
g_warning("Formats of A: %s\nFormats of B:%s\n",
a ? gst_caps_to_string(a) : "<NULL>",
b ? gst_caps_to_string(b) : "<NULL>");
gst_pad_unlink (pad, sinkpad);
} else if(ret != GST_PAD_LINK_OK) {
GstElement* parentA = gst_pad_get_parent_element(pad);
GstElement* parentB = gst_pad_get_parent_element(sinkpad);
g_error ("Failed to link pads! %s - %s : %d",
gst_element_get_name(parentA),
gst_element_get_name(parentB),
ret);
g_object_unref(parentA);
g_object_unref(parentB);
exit(3);
}
}
gst_object_unref (sinkpad);
}
static GstElement *
remove_smpte_from_bin (GESTrackVideoTransitionPrivate * priv, GstPad * sink)
{
GstPad *smpte_src, *peer_src, *smpte_sink;
GstElement *smpte, *peer;
smpte_src = gst_pad_get_peer (sink);
smpte = gst_pad_get_parent_element (smpte_src);
if (smpte == NULL) {
gst_object_unref (smpte_src);
GST_ERROR ("The pad %" GST_PTR_FORMAT " has no parent element. "
"This should not happen", smpte_src);
return (NULL);
}
smpte_sink = gst_element_get_static_pad (smpte, "sink");
peer_src = gst_pad_get_peer (smpte_sink);
peer = gst_pad_get_parent_element (peer_src);
gst_pad_unlink (peer_src, smpte_sink);
gst_pad_unlink (smpte_src, sink);
gst_element_set_state (smpte, GST_STATE_NULL);
gst_bin_remove (GST_BIN (priv->topbin), smpte);
gst_object_unref (smpte);
gst_object_unref (smpte_sink);
gst_object_unref (smpte_src);
gst_object_unref (peer_src);
return (peer);
}
static void gst_imx_compositor_pad_update_canvas(GstImxCompositorPad *compositor_pad, GstImxRegion const *source_region)
{
GstImxCompositor *compositor;
GstVideoInfo *info = &(GST_IMXBP_VIDEO_AGGREGATOR_PAD(compositor_pad)->info);
/* Catch redundant calls */
if (!(compositor_pad->canvas_needs_update))
return;
compositor = GST_IMX_COMPOSITOR(gst_pad_get_parent_element(GST_PAD(compositor_pad)));
/* (Re)compute the outer region */
gst_imx_compositor_pad_compute_outer_region(compositor_pad);
/* (Re)computer the inner region */
gst_imx_canvas_calculate_inner_region(&(compositor_pad->canvas), info);
/* Next, clip the canvas against the overall region,
* which describes the output frame's size
* This way, it is ensured that only the parts that are "within"
* the output frame are blit */
gst_imx_canvas_clip(
&(compositor_pad->canvas),
&(compositor->overall_region),
info,
source_region,
&(compositor_pad->source_subset)
);
/* Canvas updated, mark it as such */
compositor_pad->canvas_needs_update = FALSE;
gst_object_unref(GST_OBJECT(compositor));
}
gboolean eos_callback(GstPad *pad,
GstObject *parent,
GstEvent *event)
{
GstEvent *seek_event;
GstElement *bkgdec;
GValue v=G_VALUE_INIT;
GstPad *srcpad;
GstIterator *srcpads;
gboolean result;
g_print("Decodebin received EOS. Someone should handle that...\n");
bkgdec=gst_pad_get_parent_element(pad);
if(bkgdec->numsrcpads>0) {
srcpads=gst_element_iterate_src_pads(bkgdec);
gst_iterator_next(srcpads,&v);
srcpad=GST_PAD(g_value_get_object(&v));
seek_event=gst_event_new_seek ( 1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH,
GST_SEEK_TYPE_SET, 0,
GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE);
result=gst_pad_send_event(srcpad,seek_event);
if(result==TRUE) {
g_print("seek event sent OK.\n");
} else {
g_print("seek sent FAILED.\n");
}
g_value_reset(&v);
g_value_unset(&v);
gst_iterator_free(srcpads);
return TRUE;
}
return gst_pad_event_default(pad,parent,event);
}
/**
* gst_vaapi_video_sink_lookup:
* @element: a #GstElement
*
* Traverses the whole downstream elements chain and finds a suitable
* #GstVaapiDisplay. This is a helper function for intermediate VA-API
* elements that don't create a #GstVaapiDisplay but require one.
* e.g. the `vaapiconvert' element.
*
* Return value: the #GstVaapiDisplay created by a downstream sink
* element, or %NULL if none was found
*/
GstVaapiVideoSink *
gst_vaapi_video_sink_lookup(GstElement *element)
{
GstVaapiVideoSink *sink = NULL;
GstPad *pad, *peer;
g_return_val_if_fail(GST_IS_ELEMENT(element), NULL);
while (!sink) {
pad = gst_element_get_static_pad(element, "src");
if (!pad)
break;
peer = gst_pad_get_peer(pad);
g_object_unref(pad);
if (!peer)
break;
element = gst_pad_get_parent_element(peer);
g_object_unref(peer);
if (!element)
break;
if (GST_VAAPI_IS_VIDEO_SINK(element))
sink = GST_VAAPI_VIDEO_SINK(element);
g_object_unref(element);
}
return sink;
}
/**
* gst_camerabin_try_add_element:
* @bin: tries adding an element to this bin
* @srcpad: src pad name, or NULL for any
* @new_elem: new element to be added
* @dstpad: dst pad name, or NULL for any
*
* Adds given element to given @bin. Looks for an unconnected src pad
* (with name @srcpad, if specified) from the @bin and links the element to
* it.
*
* Returns: %TRUE if adding and linking succeeded, %FALSE otherwise.
*/
gboolean
gst_camerabin_try_add_element (GstBin * bin, const gchar * srcpad,
GstElement * new_elem, const gchar * dstpad)
{
GstPad *bin_pad;
GstElement *bin_elem;
gboolean ret = TRUE;
g_return_val_if_fail (bin, FALSE);
g_return_val_if_fail (new_elem, FALSE);
/* Get pads for linking */
bin_pad = gst_bin_find_unlinked_pad (bin, GST_PAD_SRC);
/* Add to bin */
gst_bin_add (GST_BIN (bin), new_elem);
/* Link, if unconnected pad was found, otherwise just add it to bin */
if (bin_pad) {
GST_DEBUG_OBJECT (bin, "linking %s to %s:%s", GST_OBJECT_NAME (new_elem),
GST_DEBUG_PAD_NAME (bin_pad));
bin_elem = gst_pad_get_parent_element (bin_pad);
gst_object_unref (bin_pad);
if (!gst_element_link_pads_full (bin_elem, srcpad, new_elem, dstpad,
GST_PAD_LINK_CHECK_CAPS)) {
gst_object_ref (new_elem);
gst_bin_remove (bin, new_elem);
ret = FALSE;
}
gst_object_unref (bin_elem);
} else {
GST_INFO_OBJECT (bin, "no unlinked source pad in bin");
}
return ret;
}
static void
fakesink_hand_off_simple (GstElement * fakesink, GstBuffer * buf, GstPad * pad,
gpointer data)
{
static int count = 0;
GMainLoop *loop = (GMainLoop *) data;
count++;
if (count == 40) {
GstPad *peer = gst_pad_get_peer (pad);
ElementsData *elements = g_slice_new (ElementsData);
elements->agnosticbin = gst_pad_get_parent_element (peer);
elements->fakesink = g_object_ref (fakesink);
gst_pad_unlink (peer, pad);
g_object_unref (peer);
g_idle_add_full (G_PRIORITY_DEFAULT, reconnect_elements, elements,
free_elements);
} else if (count > 100) {
g_object_set (G_OBJECT (fakesink), "signal-handoffs", FALSE, NULL);
g_idle_add (quit_main_loop_idle, loop);
}
}
static gboolean
remove_src_pad (gpointer user_data)
{
GstElement *dummysrc, *bufferinjector = user_data;
GstPad *sink = gst_element_get_static_pad (bufferinjector, "sink");
GstPad *src;
gboolean success = FALSE;
fail_unless (sink);
src = gst_pad_get_peer (sink);
fail_unless (src);
dummysrc = gst_pad_get_parent_element (src);
g_signal_emit_by_name (dummysrc, "release-requested-pad",
GST_OBJECT_NAME (src), &success);
fail_unless (success);
g_object_unref (src);
g_object_unref (sink);
g_object_unref (dummysrc);
g_object_set_qdata (G_OBJECT (bufferinjector), disconnected_quark (),
GINT_TO_POINTER (TRUE));
return G_SOURCE_REMOVE;
}
static GstPadProbeReturn
pad_probe_cb (GstPad * pad, GstPadProbeInfo * info, gpointer user_data)
{
GstElement *dummysrc;
gboolean success;
gchar *padname;
GST_DEBUG_OBJECT (pad, "pad is blocked now");
/* remove the probe first */
gst_pad_remove_probe (pad, GST_PAD_PROBE_INFO_ID (info));
dummysrc = gst_pad_get_parent_element (pad);
fail_if (dummysrc == NULL);
padname = gst_pad_get_name (pad);
GST_DEBUG_OBJECT (dummysrc, "Invoking action release-requested-pad for %s",
padname);
g_signal_emit_by_name (dummysrc, "release-requested-pad", padname, &success);
fail_if (!success);
g_object_unref (dummysrc);
g_free (padname);
return GST_PAD_PROBE_OK;
}
void AudioSourceProviderGStreamer::handleRemovedDeinterleavePad(GstPad* pad)
{
m_deinterleaveSourcePads--;
// Remove the queue ! appsink chain downstream of deinterleave.
GQuark quark = g_quark_from_static_string("peer");
GstPad* sinkPad = reinterpret_cast<GstPad*>(g_object_get_qdata(G_OBJECT(pad), quark));
GRefPtr<GstElement> queue = adoptGRef(gst_pad_get_parent_element(sinkPad));
GRefPtr<GstPad> queueSrcPad = adoptGRef(gst_element_get_static_pad(queue.get(), "src"));
GRefPtr<GstPad> appsinkSinkPad = adoptGRef(gst_pad_get_peer(queueSrcPad.get()));
GRefPtr<GstElement> sink = adoptGRef(gst_pad_get_parent_element(appsinkSinkPad.get()));
gst_element_set_state(sink.get(), GST_STATE_NULL);
gst_element_set_state(queue.get(), GST_STATE_NULL);
gst_element_unlink(queue.get(), sink.get());
gst_bin_remove_many(GST_BIN(m_audioSinkBin.get()), queue.get(), sink.get(), nullptr);
}
static void
change_input (gpointer pipeline)
{
GstBin *pipe = GST_BIN (pipeline);
GstElement *agnosticbin;
GstPad *peer, *sink;
GstElement *agnosticbin2 = gst_bin_get_by_name (pipe, "agnosticbin_2");
GstElement *enc = gst_element_factory_make ("vp8enc", NULL);
GstElement *fakesink = gst_bin_get_by_name (pipe, "fakesink");
g_signal_connect (G_OBJECT (fakesink), "handoff",
G_CALLBACK (fakesink_hand_off), loop);
gst_bin_add (pipe, enc);
gst_element_sync_state_with_parent (enc);
sink = gst_element_get_static_pad (agnosticbin2, "sink");
peer = gst_pad_get_peer (sink);
agnosticbin = gst_pad_get_parent_element (peer);
gst_pad_unlink (peer, sink);
GST_INFO ("Got peer: %" GST_PTR_FORMAT, peer);
gst_element_release_request_pad (agnosticbin, peer);
gst_element_link (enc, agnosticbin2);
gst_element_link (agnosticbin, enc);
g_object_unref (agnosticbin);
g_object_unref (agnosticbin2);
g_object_unref (sink);
g_object_unref (peer);
}
void
kms_tree_bin_unlink_input_element_from_tee (KmsTreeBin * self)
{
GstPad *queue_sink, *peer, *tee_src;
GstElement *tee;
queue_sink = gst_element_get_static_pad (self->priv->input_element, "sink");
peer = gst_pad_get_peer (queue_sink);
if (GST_IS_PROXY_PAD (peer)) {
GstProxyPad *ghost;
ghost = gst_proxy_pad_get_internal (GST_PROXY_PAD (peer));
tee_src = gst_pad_get_peer (GST_PAD (ghost));
g_object_unref (peer);
g_object_unref (ghost);
} else {
tee_src = peer;
}
gst_pad_unlink (tee_src, queue_sink);
tee = gst_pad_get_parent_element (tee_src);
if (tee != NULL) {
gst_element_release_request_pad (tee, tee_src);
g_object_unref (tee);
}
g_object_unref (tee_src);
g_object_unref (queue_sink);
}
static GstPadProbeReturn
link_to_tee (GstPad * pad, GstPadProbeInfo * info, gpointer queue)
{
GstElement *tee;
if (gst_pad_is_linked (pad)) {
return GST_PAD_PROBE_PASS;
}
GST_OBJECT_LOCK (pad);
if (g_object_get_data (G_OBJECT (pad), "linking")) {
GST_OBJECT_UNLOCK (pad);
return GST_PAD_PROBE_PASS;
}
g_object_set_data (G_OBJECT (pad), "linking", GINT_TO_POINTER (TRUE));
GST_OBJECT_UNLOCK (pad);
tee = gst_pad_get_parent_element (pad);
if (tee == NULL) {
return GST_PAD_PROBE_PASS;
}
gst_element_link_pads (tee, GST_OBJECT_NAME (pad), queue, NULL);
g_object_unref (tee);
return GST_PAD_PROBE_REMOVE;
}
/**
* gst_camerabin_try_add_element:
* @bin: tries adding an element to this bin
* @new_elem: new element to be added
*
* Adds given element to given @bin. Looks for an unconnected src pad
* from the @bin and links the element to it.
*
* Returns: %TRUE if adding and linking succeeded, %FALSE otherwise.
*/
gboolean
gst_camerabin_try_add_element (GstBin * bin, GstElement * new_elem)
{
GstPad *bin_pad;
GstElement *bin_elem;
gboolean ret = TRUE;
if (!bin || !new_elem) {
return FALSE;
}
/* Get pads for linking */
bin_pad = gst_bin_find_unlinked_pad (bin, GST_PAD_SRC);
/* Add to bin */
gst_bin_add (GST_BIN (bin), new_elem);
/* Link, if unconnected pad was found, otherwise just add it to bin */
if (bin_pad) {
GST_DEBUG_OBJECT (bin, "linking %s to %s:%s", GST_OBJECT_NAME (new_elem),
GST_DEBUG_PAD_NAME (bin_pad));
bin_elem = gst_pad_get_parent_element (bin_pad);
gst_object_unref (bin_pad);
if (!gst_element_link (bin_elem, new_elem)) {
gst_bin_remove (bin, new_elem);
ret = FALSE;
}
gst_object_unref (bin_elem);
} else {
GST_INFO_OBJECT (bin, "no unlinked source pad in bin");
}
return ret;
}
void
MediaSink::unlinkUnchecked (GstPad *sink)
{
GstPad *peer;
GstPad *sinkPad;
if (sink == NULL)
sinkPad = gst_element_get_static_pad (getElement(), getPadName().c_str() );
else
sinkPad = sink;
if (sinkPad == NULL)
return;
peer = gst_pad_get_peer (sinkPad);
if (peer != NULL) {
gst_pad_unlink (peer, sinkPad);
g_object_unref (peer);
}
if (sink == NULL) {
GstElement *elem;
elem = gst_pad_get_parent_element (sinkPad);
gst_element_release_request_pad (elem, sinkPad);
g_object_unref (elem);
g_object_unref (sinkPad);
}
}
static GstPadProbeReturn
kms_agnostic_bin2_src_reconfigure_probe (GstPad * pad, GstPadProbeInfo * info,
gpointer user_data)
{
KmsAgnosticBin2 *self = KMS_AGNOSTIC_BIN2 (gst_pad_get_parent_element (pad));
GstPadProbeReturn ret = GST_PAD_PROBE_OK;
GstEvent *event;
if (self == NULL) {
return GST_PAD_PROBE_OK;
}
if (GST_PAD_PROBE_INFO_TYPE (info) & GST_PAD_PROBE_TYPE_EVENT_BOTH) {
event = gst_pad_probe_info_get_event (info);
if (GST_EVENT_TYPE (event) == GST_EVENT_RECONFIGURE) {
KmsAgnosticBin2 *self = user_data;
GST_DEBUG_OBJECT (pad, "Received reconfigure event");
KMS_AGNOSTIC_BIN2_LOCK (self);
kms_agnostic_bin2_process_pad (self, pad);
ret = GST_PAD_PROBE_DROP;
KMS_AGNOSTIC_BIN2_UNLOCK (self);
goto end;
}
}
end:
g_object_unref (self);
return ret;
}
static GstCaps *
gst_speex_enc_sink_getcaps (GstPad * pad)
{
GstCaps *caps = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
GstCaps *peercaps = NULL;
GstSpeexEnc *enc = GST_SPEEX_ENC (gst_pad_get_parent_element (pad));
peercaps = gst_pad_peer_get_caps (enc->srcpad);
if (peercaps) {
if (!gst_caps_is_empty (peercaps) && !gst_caps_is_any (peercaps)) {
GstStructure *ps = gst_caps_get_structure (peercaps, 0);
GstStructure *s = gst_caps_get_structure (caps, 0);
gint rate, channels;
if (gst_structure_get_int (ps, "rate", &rate)) {
gst_structure_fixate_field_nearest_int (s, "rate", rate);
}
if (gst_structure_get_int (ps, "channels", &channels)) {
gst_structure_fixate_field_nearest_int (s, "channels", channels);
}
}
gst_caps_unref (peercaps);
}
gst_object_unref (enc);
return caps;
}
static gboolean pad_event_handler(GstPad *pad, GstEvent *event) {
// Establish thread-local.
MpfComponent *component = MPF_COMPONENT(GST_OBJECT_PARENT(pad));
mpf_component_set_curcomponent(component);
GstElement *element = gst_pad_get_parent_element(pad);
gchar *elementname = gst_element_get_name(element);
gchar *padname = gst_pad_get_name(pad);
const gchar *eventname = gst_event_type_get_name(event->type);
MPF_PRIVATE_ALWAYS("element=%s pad=%s event=%s\n", elementname, padname,
eventname);
// If EOS, poke a message out of the events pad.
if (event->type == GST_EVENT_EOS) {
GstPad *events = gst_element_get_pad(element, "events");
printf("GstPad *events=%p\n", events);
GString *string = g_string_new("");
g_string_printf(string, "%s: EOS buffer_count=%d\n", elementname,
mpf_private.buffer_count);
mpf_voidstar_push("events", mpf_voidstar_stralloc(string->str));
mpf_voidstar_send_outbuffers();
gst_pad_push_event(events, gst_event_new_eos());
}
g_free(elementname);
g_free(padname);
return gst_pad_event_default(pad, event);
}
GstElement* tcam_gst_find_camera_src (GstElement* element)
{
GstPad* orig_pad = gst_element_get_static_pad(element, "sink");
GstPad* src_pad = gst_pad_get_peer(orig_pad);
g_object_unref(orig_pad);
if (!src_pad)
{
// this means we have reached a dead end where no valid tcamsrc exists
return nullptr;
}
GstElement* el = gst_pad_get_parent_element(src_pad);
gst_object_unref(src_pad);
GstElement* ret;
const char* name = g_type_name(gst_element_factory_get_element_type(gst_element_get_factory(el)));
if (g_strcmp0(name, "GstTcamSrc") == 0)
{
return el;
}
ret = tcam_gst_find_camera_src(el);
gst_object_unref(el);
return ret;
}
static GstPadProbeReturn
unlink_audiotestsrc (GstPad * pad, GstPadProbeInfo * info, gpointer user_data)
{
GstElement *audiotestsrc = GST_ELEMENT (user_data);
GstElement *audiomixer;
GstPad *sinkpad;
GST_DEBUG ("Blocked %" GST_PTR_FORMAT, pad);
sinkpad = gst_pad_get_peer (pad);
if (sinkpad == NULL) {
GST_DEBUG_OBJECT (pad, "No peer pad");
return GST_PAD_PROBE_DROP;
}
audiomixer = gst_pad_get_parent_element (sinkpad);
if (audiomixer == NULL) {
GST_DEBUG_OBJECT (pad, "No audiomixer");
return GST_PAD_PROBE_DROP;
}
if (!gst_pad_unlink (pad, sinkpad)) {
GST_ERROR ("Can not unilnk pads");
}
GST_DEBUG ("Releasing %" GST_PTR_FORMAT, sinkpad);
gst_element_release_request_pad (audiomixer, sinkpad);
gst_object_unref (sinkpad);
gst_object_unref (audiomixer);
g_idle_add ((GSourceFunc) remove_audiotestsrc, audiotestsrc);
return GST_PAD_PROBE_DROP;
}
static void
debug_dump_element_pad (GstPad * pad, GstElement * element,
GstDebugGraphDetails details, FILE * out, const gint indent)
{
GstElement *target_element;
GstPad *target_pad, *tmp_pad;
GstPadDirection dir;
gchar *element_name;
gchar *target_element_name;
const gchar *color_name;
dir = gst_pad_get_direction (pad);
element_name = debug_dump_make_object_name (GST_OBJECT (element));
if (GST_IS_GHOST_PAD (pad)) {
color_name =
(dir == GST_PAD_SRC) ? "#ffdddd" : ((dir ==
GST_PAD_SINK) ? "#ddddff" : "#ffffff");
/* output target-pad so that it belongs to this element */
if ((tmp_pad = gst_ghost_pad_get_target (GST_GHOST_PAD (pad)))) {
if ((target_pad = gst_pad_get_peer (tmp_pad))) {
gchar *pad_name, *target_pad_name;
const gchar *spc = &spaces[MAX (sizeof (spaces) - (1 + indent * 2), 0)];
if ((target_element = gst_pad_get_parent_element (target_pad))) {
target_element_name =
debug_dump_make_object_name (GST_OBJECT (target_element));
} else {
target_element_name = g_strdup ("");
}
debug_dump_pad (target_pad, color_name, target_element_name, details,
out, indent);
/* src ghostpad relationship */
pad_name = debug_dump_make_object_name (GST_OBJECT (pad));
target_pad_name = debug_dump_make_object_name (GST_OBJECT (target_pad));
if (dir == GST_PAD_SRC) {
fprintf (out, "%s%s_%s -> %s_%s [style=dashed, minlen=0]\n", spc,
target_element_name, target_pad_name, element_name, pad_name);
} else {
fprintf (out, "%s%s_%s -> %s_%s [style=dashed, minlen=0]\n", spc,
element_name, pad_name, target_element_name, target_pad_name);
}
g_free (target_pad_name);
g_free (target_element_name);
if (target_element)
gst_object_unref (target_element);
gst_object_unref (target_pad);
g_free (pad_name);
}
gst_object_unref (tmp_pad);
}
} else {
color_name =
(dir == GST_PAD_SRC) ? "#ffaaaa" : ((dir ==
GST_PAD_SINK) ? "#aaaaff" : "#cccccc");
}
/* pads */
debug_dump_pad (pad, color_name, element_name, details, out, indent);
g_free (element_name);
}
/* XXX: this is a workaround to the absence of any proposer way to
specify DMABUF memory capsfeatures or bufferpool option to downstream */
static gboolean
has_dmabuf_capable_peer (GstVaapiPluginBase * plugin, GstPad * pad)
{
GstPad *other_pad = NULL;
GstElement *element = NULL;
gchar *element_name = NULL;
gboolean is_dmabuf_capable = FALSE;
gint v;
gst_object_ref (pad);
for (;;) {
other_pad = gst_pad_get_peer (pad);
gst_object_unref (pad);
if (!other_pad)
break;
element = gst_pad_get_parent_element (other_pad);
gst_object_unref (other_pad);
if (!element)
break;
if (GST_IS_PUSH_SRC (element)) {
element_name = gst_element_get_name (element);
if (!element_name)
break;
if ((sscanf (element_name, "v4l2src%d", &v) != 1)
&& (sscanf (element_name, "camerasrc%d", &v) != 1))
break;
v = 0;
g_object_get (element, "io-mode", &v, NULL);
if (strncmp (element_name, "camerasrc", 9) == 0)
is_dmabuf_capable = v == 3;
else
is_dmabuf_capable = v == 5; /* "dmabuf-import" enum value */
break;
} else if (GST_IS_BASE_TRANSFORM (element)) {
element_name = gst_element_get_name (element);
if (!element_name || sscanf (element_name, "capsfilter%d", &v) != 1)
break;
pad = gst_element_get_static_pad (element, "sink");
if (!pad)
break;
} else
break;
g_free (element_name);
element_name = NULL;
g_clear_object (&element);
}
g_free (element_name);
g_clear_object (&element);
return is_dmabuf_capable;
}
static void
remove_on_unlinked (GstPad * pad, GstPad * peer, gpointer data)
{
GstElement *parent = gst_pad_get_parent_element (pad);
if (parent != NULL) {
gst_element_release_request_pad (parent, pad);
g_object_unref (parent);
}
}
static gboolean
disconnect_elements (GstElement * agnosticbin, GstElement * audiomixer)
{
gboolean done = FALSE, disconnected = FALSE;
GValue val = G_VALUE_INIT;
GstIterator *it;
it = gst_element_iterate_src_pads (agnosticbin);
do {
switch (gst_iterator_next (it, &val)) {
case GST_ITERATOR_OK:
{
GstPad *srcpad, *sinkpad;
GstElement *mixer;
srcpad = g_value_get_object (&val);
sinkpad = gst_pad_get_peer (srcpad);
mixer = gst_pad_get_parent_element (sinkpad);
if (mixer == audiomixer) {
GST_DEBUG ("Unlink %" GST_PTR_FORMAT " and %" GST_PTR_FORMAT,
agnosticbin, mixer);
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 (mixer, sinkpad);
gst_element_release_request_pad (agnosticbin, srcpad);
disconnected |= TRUE;
}
gst_object_unref (sinkpad);
gst_object_unref (mixer);
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 (agnosticbin));
case GST_ITERATOR_DONE:
g_value_unset (&val);
done = TRUE;
break;
}
} while (!done);
gst_iterator_free (it);
return disconnected;
}
static void pad_added (GstElement *src, GstPad *new_pad, ServerData *app)
{
GstElement *parent_pad = NULL;
GstPad *sink_pad = NULL;
GstPadLinkReturn ret;
GstCaps *caps = NULL;
GstStructure *pad_struct = NULL;
gchar *src_pad_name = NULL, *sink_pad_name = NULL;
const gchar *struct_name = NULL;
caps = gst_pad_query_caps (new_pad, NULL);
pad_struct = gst_caps_get_structure (caps, 0);
struct_name = gst_structure_get_name (pad_struct);
g_debug ("Pad structure: %s\n", struct_name);
if (strcmp (struct_name, "video/x-raw") == 0)
sink_pad = gst_element_get_static_pad (app->v_enc_buffer, "sink");
else if (strcmp (struct_name, "audio/x-raw") == 0)
sink_pad = gst_element_get_static_pad (app->a_filter, "sink");
else
fprintf (stderr, "Cannot handle this stream: %s\n", struct_name);
gst_caps_unref (caps);
if (sink_pad == NULL)
g_debug ("Could not get a pad from the encoder/muxer\n");
else
{
src_pad_name = gst_pad_get_name (new_pad);
sink_pad_name = gst_pad_get_name (sink_pad);
parent_pad = gst_pad_get_parent_element (sink_pad);
g_debug ("Trying to link pads: %s[%s] --> %s[%s]: ",
GST_ELEMENT_NAME (src), src_pad_name,
GST_ELEMENT_NAME (parent_pad), sink_pad_name);
gst_object_unref (parent_pad);
g_free (src_pad_name);
g_free (sink_pad_name);
ret = gst_pad_link (new_pad, sink_pad);
if (ret != GST_PAD_LINK_OK)
{
g_debug ("Could not link pads (return = %d)\n", ret);
fprintf (stderr, "Internal pipeline error\n");
}
else
g_debug ("Pads linked\n");
gst_object_unref (sink_pad);
}
}
static void
remove_tee_pad_on_unlink (GstPad * pad, GstPad * peer, gpointer user_data)
{
GstElement *tee = gst_pad_get_parent_element (pad);
if (tee == NULL) {
return;
}
gst_element_release_request_pad (tee, pad);
g_object_unref (tee);
}
static gboolean
gst_alsasink_acceptcaps (GstPad * pad, GstCaps * caps)
{
GstAlsaSink *alsa = GST_ALSA_SINK (gst_pad_get_parent_element (pad));
GstCaps *pad_caps;
GstStructure *st;
gboolean ret = FALSE;
GstRingBufferSpec spec = { 0 };
pad_caps = gst_pad_get_caps_reffed (pad);
if (pad_caps) {
ret = gst_caps_can_intersect (pad_caps, caps);
gst_caps_unref (pad_caps);
if (!ret)
goto done;
}
/* If we've not got fixed caps, creating a stream might fail, so let's just
* return from here with default acceptcaps behaviour */
if (!gst_caps_is_fixed (caps))
goto done;
/* parse helper expects this set, so avoid nasty warning
* will be set properly later on anyway */
spec.latency_time = GST_SECOND;
if (!gst_ring_buffer_parse_caps (&spec, caps))
goto done;
/* Make sure input is framed (one frame per buffer) and can be payloaded */
switch (spec.type) {
case GST_BUFTYPE_AC3:
case GST_BUFTYPE_EAC3:
case GST_BUFTYPE_DTS:
case GST_BUFTYPE_MPEG:
{
gboolean framed = FALSE, parsed = FALSE;
st = gst_caps_get_structure (caps, 0);
gst_structure_get_boolean (st, "framed", &framed);
gst_structure_get_boolean (st, "parsed", &parsed);
if ((!framed && !parsed) || gst_audio_iec61937_frame_size (&spec) <= 0)
goto done;
}
default: {
}
}
ret = TRUE;
done:
gst_caps_replace (&spec.caps, NULL);
gst_object_unref (alsa);
return ret;
}
static GstFlowReturn
fs_funnel_buffer_alloc (GstPad * pad, guint64 offset, guint size,
GstCaps * caps, GstBuffer ** buf)
{
FsFunnel *funnel = FS_FUNNEL (gst_pad_get_parent_element (pad));
GstFlowReturn ret = GST_FLOW_OK;
ret = gst_pad_alloc_buffer (funnel->srcpad, offset, size, caps, buf);
gst_object_unref (funnel);
return ret;
}
static GstFlowReturn
gst_webvtt_enc_chain (GstPad * pad, GstBuffer * buf)
{
GstWebvttEnc *webvttenc;
GstBuffer *new_buffer;
gchar *timing;
GstFlowReturn ret;
webvttenc = GST_WEBVTT_ENC (gst_pad_get_parent_element (pad));
if (!webvttenc->pushed_header) {
const char *header = "WEBVTT\n\n";
new_buffer = gst_buffer_new_and_alloc (strlen (header));
memcpy (GST_BUFFER_DATA (new_buffer), header, strlen (header));
GST_BUFFER_TIMESTAMP (new_buffer) = GST_CLOCK_TIME_NONE;
GST_BUFFER_DURATION (new_buffer) = GST_CLOCK_TIME_NONE;
ret = gst_pad_push (webvttenc->srcpad, new_buffer);
if (ret != GST_FLOW_OK) {
goto out;
}
webvttenc->pushed_header = TRUE;
}
gst_object_sync_values (G_OBJECT (webvttenc), GST_BUFFER_TIMESTAMP (buf));
timing = gst_webvtt_enc_timeconvertion (webvttenc, buf);
new_buffer =
gst_buffer_new_and_alloc (strlen (timing) + GST_BUFFER_SIZE (buf) + 1);
memcpy (GST_BUFFER_DATA (new_buffer), timing, strlen (timing));
memcpy (GST_BUFFER_DATA (new_buffer) + strlen (timing), GST_BUFFER_DATA (buf),
GST_BUFFER_SIZE (buf));
memcpy (GST_BUFFER_DATA (new_buffer) + GST_BUFFER_SIZE (new_buffer) - 1,
"\n", 1);
g_free (timing);
GST_BUFFER_TIMESTAMP (new_buffer) = GST_BUFFER_TIMESTAMP (buf);
GST_BUFFER_DURATION (new_buffer) = GST_BUFFER_DURATION (buf);
ret = gst_pad_push (webvttenc->srcpad, new_buffer);
out:
gst_buffer_unref (buf);
gst_object_unref (webvttenc);
return ret;
}
static void
remove_unlinked_pad (GstPad * pad, GstPad * peer, gpointer user_data)
{
GstElement *parent = gst_pad_get_parent_element (pad);
if (parent == NULL)
return;
GST_DEBUG_OBJECT (GST_OBJECT_PARENT (parent), "Removing pad %" GST_PTR_FORMAT,
pad);
gst_element_release_request_pad (parent, pad);
g_object_unref (parent);
}
