static void
gst_selector_pad_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstSelectorPad *spad = GST_SELECTOR_PAD_CAST (object);
switch (prop_id) {
case PROP_PAD_RUNNING_TIME:
g_value_set_int64 (value, gst_selector_pad_get_running_time (spad));
break;
case PROP_PAD_TAGS:
GST_OBJECT_LOCK (object);
g_value_set_boxed (value, spad->tags);
GST_OBJECT_UNLOCK (object);
break;
case PROP_PAD_ACTIVE:
{
GstInputSelector *sel;
sel = GST_INPUT_SELECTOR (gst_pad_get_parent (spad));
g_value_set_boolean (value, gst_input_selector_is_active_sinkpad (sel,
GST_PAD_CAST (spad)));
gst_object_unref (sel);
break;
}
case PROP_PAD_ALWAYS_OK:
GST_OBJECT_LOCK (object);
g_value_set_boolean (value, spad->always_ok);
GST_OBJECT_UNLOCK (object);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstFlowReturn
gst_selector_pad_bufferalloc (GstPad * pad, guint64 offset,
guint size, GstCaps * caps, GstBuffer ** buf)
{
GstInputSelector *sel;
GstFlowReturn result;
GstPad *active_sinkpad;
GstPad *prev_active_sinkpad;
GstSelectorPad *selpad;
sel = GST_INPUT_SELECTOR (gst_pad_get_parent (pad));
selpad = GST_SELECTOR_PAD_CAST (pad);
GST_LOG_OBJECT (pad, "received alloc");
GST_INPUT_SELECTOR_LOCK (sel);
prev_active_sinkpad = sel->active_sinkpad;
active_sinkpad = gst_input_selector_activate_sinkpad (sel, pad);
if (pad != active_sinkpad)
goto not_active;
GST_INPUT_SELECTOR_UNLOCK (sel);
if (prev_active_sinkpad != active_sinkpad && pad == active_sinkpad)
g_object_notify (G_OBJECT (sel), "active-pad");
result = gst_pad_alloc_buffer (sel->srcpad, offset, size, caps, buf);
done:
gst_object_unref (sel);
return result;
/* ERRORS */
not_active:
{
GST_INPUT_SELECTOR_UNLOCK (sel);
/* unselected pad, perform fallback alloc or return unlinked when
* asked */
GST_OBJECT_LOCK (selpad);
if (selpad->always_ok) {
GST_DEBUG_OBJECT (pad, "Not selected, performing fallback allocation");
*buf = NULL;
result = GST_FLOW_OK;
} else {
GST_DEBUG_OBJECT (pad, "Not selected, return NOT_LINKED");
result = GST_FLOW_NOT_LINKED;
}
GST_OBJECT_UNLOCK (selpad);
goto done;
}
}
static GstFlowReturn
gst_selector_pad_chain (GstPad * pad, GstBuffer * buf)
{
RsnStreamSelector *sel;
GstFlowReturn res;
GstPad *active_sinkpad;
RsnSelectorPad *selpad;
GstClockTime timestamp;
GstSegment *seg;
sel = RSN_STREAM_SELECTOR (gst_pad_get_parent (pad));
selpad = GST_SELECTOR_PAD_CAST (pad);
seg = &selpad->segment;
active_sinkpad = rsn_stream_selector_get_active (sel, pad);
timestamp = GST_BUFFER_TIMESTAMP (buf);
if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
GST_DEBUG_OBJECT (sel, "received timestamp %" GST_TIME_FORMAT,
GST_TIME_ARGS (timestamp));
gst_segment_set_last_stop (seg, seg->format, timestamp);
}
/* Ignore buffers from pads except the selected one */
if (pad != active_sinkpad)
goto ignore;
/* if we have a pending segment, push it out now */
if (selpad->segment_pending) {
gst_pad_push_event (sel->srcpad, gst_event_new_new_segment_full (FALSE,
seg->rate, seg->applied_rate, seg->format, seg->start, seg->stop,
seg->time));
selpad->segment_pending = FALSE;
}
/* forward */
GST_DEBUG_OBJECT (sel, "Forwarding buffer %p from pad %s:%s", buf,
GST_DEBUG_PAD_NAME (pad));
res = gst_pad_push (sel->srcpad, buf);
done:
gst_object_unref (sel);
return res;
/* dropped buffers */
ignore:
{
GST_DEBUG_OBJECT (sel, "Ignoring buffer %p from pad %s:%s",
buf, GST_DEBUG_PAD_NAME (pad));
gst_buffer_unref (buf);
res = GST_FLOW_NOT_LINKED;
goto done;
}
}
static void
gst_selector_pad_finalize (GObject * object)
{
RsnSelectorPad *pad;
pad = GST_SELECTOR_PAD_CAST (object);
if (pad->tags)
gst_tag_list_free (pad->tags);
G_OBJECT_CLASS (selector_pad_parent_class)->finalize (object);
}
/* check if the pad is the active sinkpad */
static gboolean
rsn_stream_selector_is_active_sinkpad (RsnStreamSelector * sel, GstPad * pad)
{
RsnSelectorPad *selpad;
gboolean res;
selpad = GST_SELECTOR_PAD_CAST (pad);
GST_OBJECT_LOCK (sel);
res = (pad == sel->active_sinkpad);
GST_OBJECT_UNLOCK (sel);
return res;
}
static void
gst_selector_pad_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstSelectorPad *spad = GST_SELECTOR_PAD_CAST (object);
switch (prop_id) {
case PROP_PAD_ALWAYS_OK:
GST_OBJECT_LOCK (object);
spad->always_ok = g_value_get_boolean (value);
GST_OBJECT_UNLOCK (object);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/* Get or create the active sinkpad */
static GstPad *
rsn_stream_selector_get_active (RsnStreamSelector * sel, GstPad * pad)
{
GstPad *active_sinkpad;
RsnSelectorPad *selpad;
selpad = GST_SELECTOR_PAD_CAST (pad);
GST_OBJECT_LOCK (sel);
selpad->active = TRUE;
active_sinkpad = sel->active_sinkpad;
if (active_sinkpad == NULL) {
/* first pad we get an alloc on becomes the activated pad by default */
active_sinkpad = sel->active_sinkpad = gst_object_ref (pad);
GST_DEBUG_OBJECT (sel, "Activating pad %s:%s", GST_DEBUG_PAD_NAME (pad));
}
GST_OBJECT_UNLOCK (sel);
return active_sinkpad;
}
static void
rsn_stream_selector_set_active (RsnStreamSelector * sel, GstPad * pad)
{
GstPad **active_pad_p;
GST_OBJECT_LOCK (GST_OBJECT_CAST (sel));
if (pad != sel->active_sinkpad) {
RsnSelectorPad *selpad;
selpad = GST_SELECTOR_PAD_CAST (pad);
/* we can only activate pads that have data received */
if (selpad && !selpad->active) {
GST_DEBUG_OBJECT (sel, "No data received on pad %" GST_PTR_FORMAT, pad);
} else {
active_pad_p = &sel->active_sinkpad;
gst_object_replace ((GstObject **) active_pad_p, GST_OBJECT_CAST (pad));
GST_DEBUG_OBJECT (sel, "New active pad is %" GST_PTR_FORMAT,
sel->active_sinkpad);
}
}
GST_OBJECT_UNLOCK (GST_OBJECT_CAST (sel));
}
static void
gst_stream_selector_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstStreamSelector *sel = GST_STREAM_SELECTOR (object);
switch (prop_id) {
case PROP_ACTIVE_PAD:
{
GstPad *pad = NULL;
GstPad **active_pad_p;
pad = g_value_get_object (value);
GST_OBJECT_LOCK (object);
if (pad != sel->active_sinkpad) {
GstSelectorPad *selpad;
selpad = GST_SELECTOR_PAD_CAST (pad);
/* we can only activate pads that have data received */
if (selpad && !selpad->active) {
GST_DEBUG_OBJECT (sel, "No data received on pad %" GST_PTR_FORMAT,
pad);
} else {
active_pad_p = &sel->active_sinkpad;
gst_object_replace ((GstObject **) active_pad_p,
GST_OBJECT_CAST (pad));
GST_DEBUG_OBJECT (sel, "New active pad is %" GST_PTR_FORMAT,
sel->active_sinkpad);
}
}
GST_OBJECT_UNLOCK (object);
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_selector_pad_event (GstPad * pad, GstEvent * event)
{
gboolean res = TRUE;
gboolean forward = TRUE;
RsnStreamSelector *sel;
RsnSelectorPad *selpad;
GstPad *active_sinkpad;
sel = RSN_STREAM_SELECTOR (gst_pad_get_parent (pad));
selpad = GST_SELECTOR_PAD_CAST (pad);
/* only forward if we are dealing with the active sinkpad */
active_sinkpad = rsn_stream_selector_get_active (sel, pad);
forward = (active_sinkpad == pad);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_STOP:
gst_selector_pad_reset (selpad);
break;
case GST_EVENT_NEWSEGMENT:
{
gboolean update;
GstFormat format;
gdouble rate, arate;
gint64 start, stop, time;
gst_event_parse_new_segment_full (event, &update, &rate, &arate, &format,
&start, &stop, &time);
GST_DEBUG_OBJECT (selpad,
"configured NEWSEGMENT update %d, rate %lf, applied rate %lf, "
"format %d, "
"%" G_GINT64_FORMAT " -- %" G_GINT64_FORMAT ", time %"
G_GINT64_FORMAT, update, rate, arate, format, start, stop, time);
gst_segment_set_newsegment_full (&selpad->segment, update,
rate, arate, format, start, stop, time);
/* if we are not going to forward the segment, mark the segment as
* pending */
if (!forward)
selpad->segment_pending = TRUE;
break;
}
case GST_EVENT_TAG:
{
GstTagList *tags;
GST_OBJECT_LOCK (selpad);
if (selpad->tags)
gst_tag_list_free (selpad->tags);
gst_event_parse_tag (event, &tags);
if (tags)
tags = gst_tag_list_copy (tags);
selpad->tags = tags;
GST_DEBUG_OBJECT (sel, "received tags %" GST_PTR_FORMAT, selpad->tags);
GST_OBJECT_UNLOCK (selpad);
break;
}
case GST_EVENT_CUSTOM_DOWNSTREAM:
{
const GstStructure *structure = gst_event_get_structure (event);
if (structure != NULL &&
gst_structure_has_name (structure, "application/x-gst-dvd")) {
const char *type = gst_structure_get_string (structure, "event");
if (strcmp (type, "select-pad") == 0) {
rsn_stream_selector_set_active (sel, pad);
forward = FALSE;
}
}
}
case GST_EVENT_EOS:
selpad->eos = TRUE;
break;
default:
break;
}
if (forward)
res = gst_pad_push_event (sel->srcpad, event);
else
gst_event_unref (event);
gst_object_unref (sel);
return res;
}
static GstFlowReturn
gst_selector_pad_chain (GstPad * pad, GstBuffer * buf)
{
GstInputSelector *sel;
GstFlowReturn res;
GstPad *active_sinkpad;
GstPad *prev_active_sinkpad;
GstSelectorPad *selpad;
GstClockTime start_time;
GstSegment *seg;
GstEvent *close_event = NULL, *start_event = NULL;
GstCaps *caps;
sel = GST_INPUT_SELECTOR (gst_pad_get_parent (pad));
selpad = GST_SELECTOR_PAD_CAST (pad);
seg = &selpad->segment;
GST_INPUT_SELECTOR_LOCK (sel);
/* wait or check for flushing */
if (gst_input_selector_wait (sel, pad))
goto flushing;
GST_LOG_OBJECT (pad, "getting active pad");
prev_active_sinkpad = sel->active_sinkpad;
active_sinkpad = gst_input_selector_activate_sinkpad (sel, pad);
/* update the segment on the srcpad */
start_time = GST_BUFFER_TIMESTAMP (buf);
if (GST_CLOCK_TIME_IS_VALID (start_time)) {
GST_LOG_OBJECT (pad, "received start time %" GST_TIME_FORMAT,
GST_TIME_ARGS (start_time));
if (GST_BUFFER_DURATION_IS_VALID (buf))
GST_LOG_OBJECT (pad, "received end time %" GST_TIME_FORMAT,
GST_TIME_ARGS (start_time + GST_BUFFER_DURATION (buf)));
GST_OBJECT_LOCK (pad);
gst_segment_set_last_stop (seg, seg->format, start_time);
GST_OBJECT_UNLOCK (pad);
}
/* Ignore buffers from pads except the selected one */
if (pad != active_sinkpad)
goto ignore;
if (G_UNLIKELY (sel->pending_close)) {
GstSegment *cseg = &sel->segment;
GST_DEBUG_OBJECT (sel,
"pushing close NEWSEGMENT update %d, rate %lf, applied rate %lf, "
"format %d, "
"%" G_GINT64_FORMAT " -- %" G_GINT64_FORMAT ", time %"
G_GINT64_FORMAT, TRUE, cseg->rate, cseg->applied_rate, cseg->format,
cseg->start, cseg->stop, cseg->time);
/* create update segment */
close_event = gst_event_new_new_segment_full (TRUE, cseg->rate,
cseg->applied_rate, cseg->format, cseg->start, cseg->stop, cseg->time);
sel->pending_close = FALSE;
}
/* if we have a pending segment, push it out now */
if (G_UNLIKELY (selpad->segment_pending)) {
GST_DEBUG_OBJECT (pad,
"pushing pending NEWSEGMENT update %d, rate %lf, applied rate %lf, "
"format %d, "
"%" G_GINT64_FORMAT " -- %" G_GINT64_FORMAT ", time %"
G_GINT64_FORMAT, FALSE, seg->rate, seg->applied_rate, seg->format,
seg->start, seg->stop, seg->time);
start_event = gst_event_new_new_segment_full (FALSE, seg->rate,
seg->applied_rate, seg->format, seg->start, seg->stop, seg->time);
selpad->segment_pending = FALSE;
}
GST_INPUT_SELECTOR_UNLOCK (sel);
if (prev_active_sinkpad != active_sinkpad && pad == active_sinkpad)
g_object_notify (G_OBJECT (sel), "active-pad");
if (close_event)
gst_pad_push_event (sel->srcpad, close_event);
if (start_event)
gst_pad_push_event (sel->srcpad, start_event);
if (selpad->discont) {
buf = gst_buffer_make_metadata_writable (buf);
GST_DEBUG_OBJECT (pad, "Marking discont buffer %p", buf);
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
selpad->discont = FALSE;
}
/* forward */
GST_LOG_OBJECT (pad, "Forwarding buffer %p", buf);
if ((caps = GST_BUFFER_CAPS (buf))) {
if (GST_PAD_CAPS (sel->srcpad) != caps)
gst_pad_set_caps (sel->srcpad, caps);
}
res = gst_pad_push (sel->srcpad, buf);
done:
gst_object_unref (sel);
return res;
/* dropped buffers */
ignore:
{
GST_DEBUG_OBJECT (pad, "Pad not active, discard buffer %p", buf);
/* when we drop a buffer, we're creating a discont on this pad */
selpad->discont = TRUE;
GST_INPUT_SELECTOR_UNLOCK (sel);
gst_buffer_unref (buf);
/* figure out what to return upstream */
GST_OBJECT_LOCK (selpad);
if (selpad->always_ok)
res = GST_FLOW_OK;
else
res = GST_FLOW_NOT_LINKED;
GST_OBJECT_UNLOCK (selpad);
goto done;
}
flushing:
{
GST_DEBUG_OBJECT (pad, "We are flushing, discard buffer %p", buf);
GST_INPUT_SELECTOR_UNLOCK (sel);
gst_buffer_unref (buf);
res = GST_FLOW_WRONG_STATE;
goto done;
}
}
static gboolean
gst_selector_pad_event (GstPad * pad, GstEvent * event)
{
gboolean res = TRUE;
gboolean forward = TRUE;
GstInputSelector *sel;
GstSelectorPad *selpad;
GstPad *prev_active_sinkpad;
GstPad *active_sinkpad;
sel = GST_INPUT_SELECTOR (gst_pad_get_parent (pad));
selpad = GST_SELECTOR_PAD_CAST (pad);
GST_INPUT_SELECTOR_LOCK (sel);
prev_active_sinkpad = sel->active_sinkpad;
active_sinkpad = gst_input_selector_activate_sinkpad (sel, pad);
/* only forward if we are dealing with the active sinkpad or if select_all
* is enabled */
if (pad != active_sinkpad && !sel->select_all)
forward = FALSE;
GST_INPUT_SELECTOR_UNLOCK (sel);
if (prev_active_sinkpad != active_sinkpad && pad == active_sinkpad)
g_object_notify (G_OBJECT (sel), "active-pad");
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_START:
/* FIXME, flush out the waiter */
break;
case GST_EVENT_FLUSH_STOP:
GST_INPUT_SELECTOR_LOCK (sel);
gst_selector_pad_reset (selpad);
sel->pending_close = FALSE;
GST_INPUT_SELECTOR_UNLOCK (sel);
break;
case GST_EVENT_NEWSEGMENT:
{
gboolean update;
GstFormat format;
gdouble rate, arate;
gint64 start, stop, time;
gst_event_parse_new_segment_full (event, &update, &rate, &arate, &format,
&start, &stop, &time);
GST_DEBUG_OBJECT (pad,
"configured NEWSEGMENT update %d, rate %lf, applied rate %lf, "
"format %d, "
"%" G_GINT64_FORMAT " -- %" G_GINT64_FORMAT ", time %"
G_GINT64_FORMAT, update, rate, arate, format, start, stop, time);
GST_INPUT_SELECTOR_LOCK (sel);
GST_OBJECT_LOCK (selpad);
gst_segment_set_newsegment_full (&selpad->segment, update,
rate, arate, format, start, stop, time);
GST_OBJECT_UNLOCK (selpad);
/* If we aren't forwarding the event (because the pad is not the
* active_sinkpad, and select_all is not set, then set the flag on the
* that says a segment needs sending if/when that pad is activated.
* For all other cases, we send the event immediately, which makes
* sparse streams and other segment updates work correctly downstream.
*/
if (!forward)
selpad->segment_pending = TRUE;
GST_INPUT_SELECTOR_UNLOCK (sel);
break;
}
case GST_EVENT_TAG:
{
GstTagList *tags, *oldtags, *newtags;
gst_event_parse_tag (event, &tags);
GST_OBJECT_LOCK (selpad);
oldtags = selpad->tags;
newtags = gst_tag_list_merge (oldtags, tags, GST_TAG_MERGE_REPLACE);
selpad->tags = newtags;
if (oldtags)
gst_tag_list_free (oldtags);
GST_DEBUG_OBJECT (pad, "received tags %" GST_PTR_FORMAT, newtags);
GST_OBJECT_UNLOCK (selpad);
g_object_notify (G_OBJECT (selpad), "tags");
break;
}
case GST_EVENT_EOS:
selpad->eos = TRUE;
GST_DEBUG_OBJECT (pad, "received EOS");
/* don't forward eos in select_all mode until all sink pads have eos */
if (sel->select_all && !gst_input_selector_check_eos (GST_ELEMENT (sel))) {
forward = FALSE;
}
break;
default:
break;
}
if (forward) {
GST_DEBUG_OBJECT (pad, "forwarding event");
res = gst_pad_push_event (sel->srcpad, event);
} else
gst_event_unref (event);
gst_object_unref (sel);
return res;
}