static gboolean
vorbis_dec_src_event (GstPad * pad, GstEvent * event)
{
gboolean res = TRUE;
GstVorbisDec *dec;
dec = GST_VORBIS_DEC (gst_pad_get_parent (pad));
if (G_UNLIKELY (dec == NULL)) {
gst_event_unref (event);
return FALSE;
}
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
{
GstFormat format, tformat;
gdouble rate;
GstEvent *real_seek;
GstSeekFlags flags;
GstSeekType cur_type, stop_type;
gint64 cur, stop;
gint64 tcur, tstop;
guint32 seqnum;
gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
&stop_type, &stop);
seqnum = gst_event_get_seqnum (event);
gst_event_unref (event);
/* First bring the requested format to time */
tformat = GST_FORMAT_TIME;
if (!(res = vorbis_dec_convert (pad, format, cur, &tformat, &tcur)))
goto convert_error;
if (!(res = vorbis_dec_convert (pad, format, stop, &tformat, &tstop)))
goto convert_error;
/* then seek with time on the peer */
real_seek = gst_event_new_seek (rate, GST_FORMAT_TIME,
flags, cur_type, tcur, stop_type, tstop);
gst_event_set_seqnum (real_seek, seqnum);
res = gst_pad_push_event (dec->sinkpad, real_seek);
break;
}
default:
res = gst_pad_push_event (dec->sinkpad, event);
break;
}
done:
gst_object_unref (dec);
return res;
/* ERRORS */
convert_error:
{
GST_DEBUG_OBJECT (dec, "cannot convert start/stop for seek");
goto done;
}
}
static gboolean
seek_mode_testing (InsanityTest * test)
{
gboolean res;
GstEvent *event;
GstSeekFlags flags = GST_SEEK_FLAG_FLUSH;
GstSeekType stop_type = GST_SEEK_TYPE_NONE;
/* Reset global seek props */
glob_seek_first_buf_ts = GST_CLOCK_TIME_NONE;
glob_seek_stop_ts = GST_CLOCK_TIME_NONE;
glob_seek_segment_seektime = 0;
/* Set seeking arguments */
switch (glob_in_progress) {
case TEST_BACKWARD_PLAYBACK:
glob_seek_rate = -1;
glob_seek_stop_ts = glob_duration;
stop_type = GST_SEEK_TYPE_SET;
break;
case TEST_FAST_FORWARD:
glob_seek_rate = 2;
glob_seek_stop_ts = glob_duration / 2;
break;
case TEST_FAST_BACKWARD:
glob_seek_rate = -2;
glob_seek_stop_ts = glob_duration;
stop_type = GST_SEEK_TYPE_SET;
break;
default:
return FALSE;
}
glob_seek_got_segment = FALSE;
event = gst_event_new_seek (glob_seek_rate, GST_FORMAT_TIME,
flags, GST_SEEK_TYPE_SET, glob_seek_segment_seektime,
stop_type, glob_seek_stop_ts);
/* We didn't find any event/message with the seqnum we previously set */
if (glob_seqnum != 0 && glob_seqnum_found == FALSE)
glob_wrong_seqnum = TRUE;
glob_seqnum_found = FALSE;
glob_seqnum = gst_util_seqnum_next ();
gst_event_set_seqnum (event, glob_seqnum);
res = gst_element_send_event (glob_pipeline, event);
global_last_seek = g_get_monotonic_time ();
if (!res) {
validate_current_test (test, FALSE, "Could not send seek event");
glob_seek_rate = 0;
glob_seqnum = 0;
/* ... Next test */
next_test (test);
}
return FALSE;
}
static void
_push_eos (GstAggregator * self)
{
GstEvent *event;
_push_mandatory_events (self);
self->priv->send_eos = FALSE;
event = gst_event_new_eos ();
gst_event_set_seqnum (event, self->priv->seqnum);
gst_pad_push_event (self->srcpad, event);
}
static inline void
_push_mandatory_events (GstAggregator * self)
{
GstAggregatorPrivate *priv = self->priv;
if (g_atomic_int_get (&self->priv->send_stream_start)) {
gchar s_id[32];
GST_INFO_OBJECT (self, "pushing stream start");
/* stream-start (FIXME: create id based on input ids) */
g_snprintf (s_id, sizeof (s_id), "agg-%08x", g_random_int ());
if (!gst_pad_push_event (self->srcpad, gst_event_new_stream_start (s_id))) {
GST_WARNING_OBJECT (self->srcpad, "Sending stream start event failed");
}
g_atomic_int_set (&self->priv->send_stream_start, FALSE);
}
if (self->priv->srccaps) {
GST_INFO_OBJECT (self, "pushing caps: %" GST_PTR_FORMAT,
self->priv->srccaps);
if (!gst_pad_push_event (self->srcpad,
gst_event_new_caps (self->priv->srccaps))) {
GST_WARNING_OBJECT (self->srcpad, "Sending caps event failed");
}
gst_caps_unref (self->priv->srccaps);
self->priv->srccaps = NULL;
}
if (g_atomic_int_get (&self->priv->send_segment)) {
if (!g_atomic_int_get (&self->priv->flush_seeking)) {
GstEvent *segev = gst_event_new_segment (&self->segment);
if (!self->priv->seqnum)
self->priv->seqnum = gst_event_get_seqnum (segev);
else
gst_event_set_seqnum (segev, self->priv->seqnum);
GST_DEBUG_OBJECT (self, "pushing segment %" GST_PTR_FORMAT, segev);
gst_pad_push_event (self->srcpad, segev);
g_atomic_int_set (&self->priv->send_segment, FALSE);
}
}
if (priv->tags && priv->tags_changed) {
gst_pad_push_event (self->srcpad,
gst_event_new_tag (gst_tag_list_ref (priv->tags)));
priv->tags_changed = FALSE;
}
}
static GstEvent *
check_pending_key_unit_event (GstEvent * pending_event, GstSegment * segment,
GstClockTime timestamp, guint flags, GstClockTime pending_key_unit_ts)
{
GstClockTime running_time, stream_time;
gboolean all_headers;
guint count;
GstEvent *event = NULL;
g_return_val_if_fail (pending_event != NULL, NULL);
g_return_val_if_fail (segment != NULL, NULL);
if (pending_event == NULL)
goto out;
if (GST_CLOCK_TIME_IS_VALID (pending_key_unit_ts) &&
timestamp == GST_CLOCK_TIME_NONE)
goto out;
running_time = gst_segment_to_running_time (segment,
GST_FORMAT_TIME, timestamp);
GST_INFO ("now %" GST_TIME_FORMAT " wanted %" GST_TIME_FORMAT,
GST_TIME_ARGS (running_time), GST_TIME_ARGS (pending_key_unit_ts));
if (GST_CLOCK_TIME_IS_VALID (pending_key_unit_ts) &&
running_time < pending_key_unit_ts)
goto out;
if (flags & GST_BUFFER_FLAG_DELTA_UNIT) {
GST_INFO ("pending force key unit, waiting for keyframe");
goto out;
}
stream_time = gst_segment_to_stream_time (segment,
GST_FORMAT_TIME, timestamp);
gst_video_event_parse_upstream_force_key_unit (pending_event,
NULL, &all_headers, &count);
event =
gst_video_event_new_downstream_force_key_unit (timestamp, stream_time,
running_time, all_headers, count);
gst_event_set_seqnum (event, gst_event_get_seqnum (pending_event));
out:
return event;
}
/* sinkpad functions */
static gboolean
gst_stream_synchronizer_sink_event (GstPad * pad, GstObject * parent,
GstEvent * event)
{
GstStreamSynchronizer *self = GST_STREAM_SYNCHRONIZER (parent);
GstPad *opad;
gboolean ret = FALSE;
GST_LOG_OBJECT (pad, "Handling event %s: %" GST_PTR_FORMAT,
GST_EVENT_TYPE_NAME (event), event);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_STREAM_START:
{
GstStream *stream, *ostream;
guint32 seqnum = gst_event_get_seqnum (event);
GList *l;
gboolean all_wait = TRUE;
gboolean new_stream = TRUE;
GST_STREAM_SYNCHRONIZER_LOCK (self);
stream = gst_pad_get_element_private (pad);
if (stream && stream->stream_start_seqnum != seqnum) {
stream->is_eos = FALSE;
stream->stream_start_seqnum = seqnum;
stream->drop_discont = TRUE;
/* Check if this belongs to a stream that is already there,
* e.g. we got the visualizations for an audio stream */
for (l = self->streams; l; l = l->next) {
ostream = l->data;
if (ostream != stream && ostream->stream_start_seqnum == seqnum
&& !ostream->wait) {
new_stream = FALSE;
break;
}
}
if (!new_stream) {
GST_DEBUG_OBJECT (pad,
"Stream %d belongs to running stream %d, no waiting",
stream->stream_number, ostream->stream_number);
stream->wait = FALSE;
stream->new_stream = FALSE;
} else {
GST_DEBUG_OBJECT (pad, "Stream %d changed", stream->stream_number);
stream->wait = TRUE;
stream->new_stream = TRUE;
for (l = self->streams; l; l = l->next) {
GstStream *ostream = l->data;
all_wait = all_wait && ostream->wait;
if (!all_wait)
break;
}
if (all_wait) {
gint64 position = 0;
GST_DEBUG_OBJECT (self, "All streams have changed -- unblocking");
for (l = self->streams; l; l = l->next) {
GstStream *ostream = l->data;
gint64 stop_running_time;
gint64 position_running_time;
ostream->wait = FALSE;
if (ostream->segment.format == GST_FORMAT_TIME) {
stop_running_time =
gst_segment_to_running_time (&ostream->segment,
GST_FORMAT_TIME, ostream->segment.stop);
position_running_time =
gst_segment_to_running_time (&ostream->segment,
GST_FORMAT_TIME, ostream->segment.position);
position =
MAX (position, MAX (stop_running_time,
position_running_time));
}
}
position = MAX (0, position);
self->group_start_time = MAX (self->group_start_time, position);
GST_DEBUG_OBJECT (self, "New group start time: %" GST_TIME_FORMAT,
GST_TIME_ARGS (self->group_start_time));
for (l = self->streams; l; l = l->next) {
GstStream *ostream = l->data;
g_cond_broadcast (&ostream->stream_finish_cond);
}
}
}
} else {
GST_DEBUG_OBJECT (self, "No stream or STREAM_START from same source");
}
GST_STREAM_SYNCHRONIZER_UNLOCK (self);
break;
}
case GST_EVENT_SEGMENT:{
GstStream *stream;
GstSegment segment;
gst_event_copy_segment (event, &segment);
GST_STREAM_SYNCHRONIZER_LOCK (self);
stream = gst_pad_get_element_private (pad);
if (stream) {
if (stream->wait) {
GST_DEBUG_OBJECT (pad, "Stream %d is waiting", stream->stream_number);
g_cond_wait (&stream->stream_finish_cond, &self->lock);
stream = gst_pad_get_element_private (pad);
if (stream)
stream->wait = FALSE;
}
}
if (self->shutdown) {
GST_STREAM_SYNCHRONIZER_UNLOCK (self);
gst_event_unref (event);
goto done;
}
if (stream && segment.format == GST_FORMAT_TIME) {
if (stream->new_stream) {
stream->new_stream = FALSE;
segment.base = self->group_start_time;
}
GST_DEBUG_OBJECT (pad, "Segment was: %" GST_SEGMENT_FORMAT,
&stream->segment);
gst_segment_copy_into (&segment, &stream->segment);
GST_DEBUG_OBJECT (pad, "Segment now is: %" GST_SEGMENT_FORMAT,
&stream->segment);
stream->segment_seqnum = gst_event_get_seqnum (event);
GST_DEBUG_OBJECT (pad, "Stream start running time: %" GST_TIME_FORMAT,
GST_TIME_ARGS (stream->segment.base));
{
GstEvent *tmpev;
tmpev = gst_event_new_segment (&stream->segment);
gst_event_set_seqnum (tmpev, stream->segment_seqnum);
gst_event_unref (event);
event = tmpev;
}
} else if (stream) {
GST_WARNING_OBJECT (pad, "Non-TIME segment: %s",
gst_format_get_name (segment.format));
gst_segment_init (&stream->segment, GST_FORMAT_UNDEFINED);
/* Since this stream is not time-based, we mark it so that
* other streams don't wait forever on it */
stream->wait = TRUE;
}
GST_STREAM_SYNCHRONIZER_UNLOCK (self);
break;
}
case GST_EVENT_FLUSH_START:{
GstStream *stream;
GST_STREAM_SYNCHRONIZER_LOCK (self);
stream = gst_pad_get_element_private (pad);
if (stream) {
GST_DEBUG_OBJECT (pad, "Flushing streams");
g_cond_broadcast (&stream->stream_finish_cond);
}
GST_STREAM_SYNCHRONIZER_UNLOCK (self);
break;
}
case GST_EVENT_FLUSH_STOP:{
GstStream *stream;
GST_STREAM_SYNCHRONIZER_LOCK (self);
stream = gst_pad_get_element_private (pad);
if (stream) {
GST_DEBUG_OBJECT (pad, "Resetting segment for stream %d",
stream->stream_number);
gst_segment_init (&stream->segment, GST_FORMAT_UNDEFINED);
stream->is_eos = FALSE;
stream->wait = FALSE;
stream->new_stream = FALSE;
stream->drop_discont = FALSE;
stream->seen_data = FALSE;
g_cond_broadcast (&stream->stream_finish_cond);
}
GST_STREAM_SYNCHRONIZER_UNLOCK (self);
break;
}
case GST_EVENT_EOS:{
GstStream *stream;
GList *l;
gboolean all_eos = TRUE;
gboolean seen_data;
GSList *pads = NULL;
GstPad *srcpad;
GstClockTime timestamp;
GST_STREAM_SYNCHRONIZER_LOCK (self);
stream = gst_pad_get_element_private (pad);
if (!stream) {
GST_STREAM_SYNCHRONIZER_UNLOCK (self);
GST_WARNING_OBJECT (pad, "EOS for unknown stream");
break;
}
GST_DEBUG_OBJECT (pad, "Have EOS for stream %d", stream->stream_number);
stream->is_eos = TRUE;
seen_data = stream->seen_data;
srcpad = gst_object_ref (stream->srcpad);
if (seen_data && stream->segment.position != -1)
timestamp = stream->segment.position;
else if (stream->segment.rate < 0.0 || stream->segment.stop == -1)
timestamp = stream->segment.start;
else
timestamp = stream->segment.stop;
for (l = self->streams; l; l = l->next) {
GstStream *ostream = l->data;
all_eos = all_eos && ostream->is_eos;
if (!all_eos)
break;
}
if (all_eos) {
GST_DEBUG_OBJECT (self, "All streams are EOS -- forwarding");
for (l = self->streams; l; l = l->next) {
GstStream *ostream = l->data;
/* local snapshot of current pads */
gst_object_ref (ostream->srcpad);
pads = g_slist_prepend (pads, ostream->srcpad);
}
}
GST_STREAM_SYNCHRONIZER_UNLOCK (self);
/* drop lock when sending eos, which may block in e.g. preroll */
if (pads) {
GstPad *pad;
GSList *epad;
ret = TRUE;
epad = pads;
while (epad) {
pad = epad->data;
GST_DEBUG_OBJECT (pad, "Pushing EOS");
ret = ret && gst_pad_push_event (pad, gst_event_new_eos ());
gst_object_unref (pad);
epad = g_slist_next (epad);
}
g_slist_free (pads);
} else {
/* if EOS, but no data has passed, then send something to replace EOS
* for preroll purposes */
if (!seen_data) {
GstEvent *gap_event;
gap_event = gst_event_new_gap (timestamp, GST_CLOCK_TIME_NONE);
ret = gst_pad_push_event (srcpad, gap_event);
} else {
GstEvent *gap_event;
/* FIXME: Also send a GAP event to let audio sinks start their
* clock in case they did not have enough data yet */
gap_event = gst_event_new_gap (timestamp, GST_CLOCK_TIME_NONE);
ret = gst_pad_push_event (srcpad, gap_event);
}
}
gst_object_unref (srcpad);
gst_event_unref (event);
goto done;
}
default:
break;
}
opad = gst_stream_get_other_pad_from_pad (self, pad);
if (opad) {
ret = gst_pad_push_event (opad, event);
gst_object_unref (opad);
}
done:
return ret;
}
/* sinkpad functions */
static gboolean
gst_stream_synchronizer_sink_event (GstPad * pad, GstObject * parent,
GstEvent * event)
{
GstStreamSynchronizer *self = GST_STREAM_SYNCHRONIZER (parent);
gboolean ret = FALSE;
GST_LOG_OBJECT (pad, "Handling event %s: %" GST_PTR_FORMAT,
GST_EVENT_TYPE_NAME (event), event);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_STREAM_START:
{
GstSyncStream *stream, *ostream;
guint32 seqnum = gst_event_get_seqnum (event);
guint group_id;
gboolean have_group_id;
GList *l;
gboolean all_wait = TRUE;
gboolean new_stream = TRUE;
have_group_id = gst_event_parse_group_id (event, &group_id);
GST_STREAM_SYNCHRONIZER_LOCK (self);
self->have_group_id &= have_group_id;
have_group_id = self->have_group_id;
stream = gst_pad_get_element_private (pad);
if (!stream) {
GST_DEBUG_OBJECT (self, "No stream or STREAM_START from same source");
GST_STREAM_SYNCHRONIZER_UNLOCK (self);
break;
}
gst_event_parse_stream_flags (event, &stream->flags);
if ((have_group_id && stream->group_id != group_id) || (!have_group_id
&& stream->stream_start_seqnum != seqnum)) {
stream->is_eos = FALSE;
stream->eos_sent = FALSE;
stream->flushing = FALSE;
stream->stream_start_seqnum = seqnum;
stream->group_id = group_id;
if (!have_group_id) {
/* Check if this belongs to a stream that is already there,
* e.g. we got the visualizations for an audio stream */
for (l = self->streams; l; l = l->next) {
ostream = l->data;
if (ostream != stream && ostream->stream_start_seqnum == seqnum
&& !ostream->wait) {
new_stream = FALSE;
break;
}
}
if (!new_stream) {
GST_DEBUG_OBJECT (pad,
"Stream %d belongs to running stream %d, no waiting",
stream->stream_number, ostream->stream_number);
stream->wait = FALSE;
GST_STREAM_SYNCHRONIZER_UNLOCK (self);
break;
}
} else if (group_id == self->group_id) {
GST_DEBUG_OBJECT (pad, "Stream %d belongs to running group %d, "
"no waiting", stream->stream_number, group_id);
GST_STREAM_SYNCHRONIZER_UNLOCK (self);
break;
}
GST_DEBUG_OBJECT (pad, "Stream %d changed", stream->stream_number);
stream->wait = TRUE;
for (l = self->streams; l; l = l->next) {
GstSyncStream *ostream = l->data;
all_wait = all_wait && ((ostream->flags & GST_STREAM_FLAG_SPARSE)
|| (ostream->wait && (!have_group_id
|| ostream->group_id == group_id)));
if (!all_wait)
break;
}
if (all_wait) {
gint64 position = 0;
if (have_group_id)
GST_DEBUG_OBJECT (self,
"All streams have changed to group id %u -- unblocking",
group_id);
else
GST_DEBUG_OBJECT (self, "All streams have changed -- unblocking");
self->group_id = group_id;
for (l = self->streams; l; l = l->next) {
GstSyncStream *ostream = l->data;
gint64 stop_running_time;
gint64 position_running_time;
ostream->wait = FALSE;
if (ostream->segment.format == GST_FORMAT_TIME) {
stop_running_time =
gst_segment_to_running_time (&ostream->segment,
GST_FORMAT_TIME, ostream->segment.stop);
position_running_time =
gst_segment_to_running_time (&ostream->segment,
GST_FORMAT_TIME, ostream->segment.position);
position_running_time =
MAX (position_running_time, stop_running_time);
position_running_time -=
gst_segment_to_running_time (&ostream->segment,
GST_FORMAT_TIME, ostream->segment.start);
position_running_time = MAX (0, position_running_time);
position = MAX (position, position_running_time);
}
}
self->group_start_time += position;
GST_DEBUG_OBJECT (self, "New group start time: %" GST_TIME_FORMAT,
GST_TIME_ARGS (self->group_start_time));
for (l = self->streams; l; l = l->next) {
GstSyncStream *ostream = l->data;
ostream->wait = FALSE;
g_cond_broadcast (&ostream->stream_finish_cond);
}
}
}
GST_STREAM_SYNCHRONIZER_UNLOCK (self);
break;
}
case GST_EVENT_SEGMENT:{
GstSyncStream *stream;
GstSegment segment;
gst_event_copy_segment (event, &segment);
GST_STREAM_SYNCHRONIZER_LOCK (self);
gst_stream_synchronizer_wait (self, pad);
if (self->shutdown) {
GST_STREAM_SYNCHRONIZER_UNLOCK (self);
gst_event_unref (event);
goto done;
}
stream = gst_pad_get_element_private (pad);
if (stream && segment.format == GST_FORMAT_TIME) {
GST_DEBUG_OBJECT (pad,
"New stream, updating base from %" GST_TIME_FORMAT " to %"
GST_TIME_FORMAT, GST_TIME_ARGS (segment.base),
GST_TIME_ARGS (segment.base + self->group_start_time));
segment.base += self->group_start_time;
GST_DEBUG_OBJECT (pad, "Segment was: %" GST_SEGMENT_FORMAT,
&stream->segment);
gst_segment_copy_into (&segment, &stream->segment);
GST_DEBUG_OBJECT (pad, "Segment now is: %" GST_SEGMENT_FORMAT,
&stream->segment);
stream->segment_seqnum = gst_event_get_seqnum (event);
GST_DEBUG_OBJECT (pad, "Stream start running time: %" GST_TIME_FORMAT,
GST_TIME_ARGS (stream->segment.base));
{
GstEvent *tmpev;
tmpev = gst_event_new_segment (&stream->segment);
gst_event_set_seqnum (tmpev, stream->segment_seqnum);
gst_event_unref (event);
event = tmpev;
}
} else if (stream) {
GST_WARNING_OBJECT (pad, "Non-TIME segment: %s",
gst_format_get_name (segment.format));
gst_segment_init (&stream->segment, GST_FORMAT_UNDEFINED);
}
GST_STREAM_SYNCHRONIZER_UNLOCK (self);
break;
}
case GST_EVENT_FLUSH_START:{
GstSyncStream *stream;
GST_STREAM_SYNCHRONIZER_LOCK (self);
stream = gst_pad_get_element_private (pad);
self->eos = FALSE;
if (stream) {
GST_DEBUG_OBJECT (pad, "Flushing streams");
stream->flushing = TRUE;
g_cond_broadcast (&stream->stream_finish_cond);
}
GST_STREAM_SYNCHRONIZER_UNLOCK (self);
break;
}
case GST_EVENT_FLUSH_STOP:{
GstSyncStream *stream;
GList *l;
GstClockTime new_group_start_time = 0;
GST_STREAM_SYNCHRONIZER_LOCK (self);
stream = gst_pad_get_element_private (pad);
if (stream) {
GST_DEBUG_OBJECT (pad, "Resetting segment for stream %d",
stream->stream_number);
gst_segment_init (&stream->segment, GST_FORMAT_UNDEFINED);
stream->is_eos = FALSE;
stream->eos_sent = FALSE;
stream->flushing = FALSE;
stream->wait = FALSE;
g_cond_broadcast (&stream->stream_finish_cond);
}
for (l = self->streams; l; l = l->next) {
GstSyncStream *ostream = l->data;
GstClockTime start_running_time;
if (ostream == stream || ostream->flushing)
continue;
if (ostream->segment.format == GST_FORMAT_TIME) {
start_running_time =
gst_segment_to_running_time (&ostream->segment,
GST_FORMAT_TIME, ostream->segment.start);
new_group_start_time = MAX (new_group_start_time, start_running_time);
}
}
GST_DEBUG_OBJECT (pad,
"Updating group start time from %" GST_TIME_FORMAT " to %"
GST_TIME_FORMAT, GST_TIME_ARGS (self->group_start_time),
GST_TIME_ARGS (new_group_start_time));
self->group_start_time = new_group_start_time;
GST_STREAM_SYNCHRONIZER_UNLOCK (self);
break;
}
/* unblocking EOS wait when track switch. */
case GST_EVENT_CUSTOM_DOWNSTREAM_OOB:{
if (gst_event_has_name (event, "playsink-custom-video-flush")
|| gst_event_has_name (event, "playsink-custom-audio-flush")
|| gst_event_has_name (event, "playsink-custom-subtitle-flush")) {
GstSyncStream *stream;
GST_STREAM_SYNCHRONIZER_LOCK (self);
stream = gst_pad_get_element_private (pad);
if (stream) {
stream->is_eos = FALSE;
stream->eos_sent = FALSE;
stream->wait = FALSE;
g_cond_broadcast (&stream->stream_finish_cond);
}
GST_STREAM_SYNCHRONIZER_UNLOCK (self);
}
break;
}
case GST_EVENT_EOS:{
GstSyncStream *stream;
GList *l;
gboolean all_eos = TRUE;
gboolean seen_data;
GSList *pads = NULL;
GstPad *srcpad;
GstClockTime timestamp;
GST_STREAM_SYNCHRONIZER_LOCK (self);
stream = gst_pad_get_element_private (pad);
if (!stream) {
GST_STREAM_SYNCHRONIZER_UNLOCK (self);
GST_WARNING_OBJECT (pad, "EOS for unknown stream");
break;
}
GST_DEBUG_OBJECT (pad, "Have EOS for stream %d", stream->stream_number);
stream->is_eos = TRUE;
seen_data = stream->seen_data;
srcpad = gst_object_ref (stream->srcpad);
if (seen_data && stream->segment.position != -1)
timestamp = stream->segment.position;
else if (stream->segment.rate < 0.0 || stream->segment.stop == -1)
timestamp = stream->segment.start;
else
timestamp = stream->segment.stop;
stream->segment.position = timestamp;
for (l = self->streams; l; l = l->next) {
GstSyncStream *ostream = l->data;
all_eos = all_eos && ostream->is_eos;
if (!all_eos)
break;
}
if (all_eos) {
GST_DEBUG_OBJECT (self, "All streams are EOS -- forwarding");
self->eos = TRUE;
for (l = self->streams; l; l = l->next) {
GstSyncStream *ostream = l->data;
/* local snapshot of current pads */
gst_object_ref (ostream->srcpad);
pads = g_slist_prepend (pads, ostream->srcpad);
}
}
if (pads) {
GstPad *pad;
GSList *epad;
GstSyncStream *ostream;
ret = TRUE;
epad = pads;
while (epad) {
pad = epad->data;
ostream = gst_pad_get_element_private (pad);
if (ostream) {
g_cond_broadcast (&ostream->stream_finish_cond);
}
gst_object_unref (pad);
epad = g_slist_next (epad);
}
g_slist_free (pads);
} else {
if (seen_data) {
self->send_gap_event = TRUE;
stream->gap_duration = GST_CLOCK_TIME_NONE;
stream->wait = TRUE;
ret = gst_stream_synchronizer_wait (self, srcpad);
}
}
/* send eos if haven't seen data. seen_data will be true if data buffer
* of the track have received in anytime. sink is ready if seen_data is
* true, so can send GAP event. Will send EOS if sink isn't ready. The
* scenario for the case is one track haven't any media data and then
* send EOS. Or no any valid media data in one track, so decoder can't
* get valid CAPS for the track. sink can't ready without received CAPS.*/
if (!seen_data || self->eos) {
GST_DEBUG_OBJECT (pad, "send EOS event");
/* drop lock when sending eos, which may block in e.g. preroll */
GST_STREAM_SYNCHRONIZER_UNLOCK (self);
ret = gst_pad_push_event (srcpad, gst_event_new_eos ());
GST_STREAM_SYNCHRONIZER_LOCK (self);
stream = gst_pad_get_element_private (pad);
if (stream) {
stream->eos_sent = TRUE;
}
}
gst_object_unref (srcpad);
gst_event_unref (event);
GST_STREAM_SYNCHRONIZER_UNLOCK (self);
goto done;
}
default:
break;
}
ret = gst_pad_event_default (pad, parent, event);
done:
return ret;
}
gboolean
mpegts_base_handle_seek_event (MpegTSBase * base, GstPad * pad,
GstEvent * event)
{
MpegTSBaseClass *klass = GST_MPEGTS_BASE_GET_CLASS (base);
GstFlowReturn ret = GST_FLOW_ERROR;
gdouble rate;
gboolean flush;
GstFormat format;
GstSeekFlags flags;
GstSeekType start_type, stop_type;
gint64 start, stop;
GstEvent *flush_event = NULL;
gst_event_parse_seek (event, &rate, &format, &flags, &start_type, &start,
&stop_type, &stop);
if (format != GST_FORMAT_TIME)
return FALSE;
if (GST_EVENT_SEQNUM (event) == base->last_seek_seqnum) {
GST_DEBUG_OBJECT (base, "Skipping already handled seek");
return TRUE;
}
if (base->mode == BASE_MODE_PUSHING) {
/* First try if upstream supports seeking in TIME format */
if (gst_pad_push_event (base->sinkpad, gst_event_ref (event))) {
GST_DEBUG ("upstream handled SEEK event");
return TRUE;
}
/* If the subclass can seek, do that */
if (klass->seek) {
ret = klass->seek (base, event);
if (G_UNLIKELY (ret != GST_FLOW_OK))
GST_WARNING ("seeking failed %s", gst_flow_get_name (ret));
else {
GstEvent *new_seek;
if (GST_CLOCK_TIME_IS_VALID (base->seek_offset)) {
base->mode = BASE_MODE_SEEKING;
new_seek = gst_event_new_seek (rate, GST_FORMAT_BYTES, flags,
GST_SEEK_TYPE_SET, base->seek_offset, GST_SEEK_TYPE_NONE, -1);
gst_event_set_seqnum (new_seek, GST_EVENT_SEQNUM (event));
if (!gst_pad_push_event (base->sinkpad, new_seek))
ret = GST_FLOW_ERROR;
else
base->last_seek_seqnum = GST_EVENT_SEQNUM (event);
}
base->mode = BASE_MODE_PUSHING;
}
} else {
GST_WARNING ("subclass has no seek implementation");
}
return ret == GST_FLOW_OK;
}
if (!klass->seek) {
GST_WARNING ("subclass has no seek implementation");
return FALSE;
}
if (rate <= 0.0) {
GST_WARNING ("Negative rate not supported");
return FALSE;
}
GST_DEBUG ("seek event, rate: %f start: %" GST_TIME_FORMAT
" stop: %" GST_TIME_FORMAT, rate, GST_TIME_ARGS (start),
GST_TIME_ARGS (stop));
flush = flags & GST_SEEK_FLAG_FLUSH;
/* stop streaming, either by flushing or by pausing the task */
base->mode = BASE_MODE_SEEKING;
if (flush) {
GST_DEBUG_OBJECT (base, "sending flush start");
flush_event = gst_event_new_flush_start ();
gst_event_set_seqnum (flush_event, GST_EVENT_SEQNUM (event));
gst_pad_push_event (base->sinkpad, gst_event_ref (flush_event));
GST_MPEGTS_BASE_GET_CLASS (base)->push_event (base, flush_event);
} else
gst_pad_pause_task (base->sinkpad);
/* wait for streaming to finish */
GST_PAD_STREAM_LOCK (base->sinkpad);
if (flush) {
/* send a FLUSH_STOP for the sinkpad, since we need data for seeking */
GST_DEBUG_OBJECT (base, "sending flush stop");
flush_event = gst_event_new_flush_stop (TRUE);
gst_event_set_seqnum (flush_event, GST_EVENT_SEQNUM (event));
/* ref for it to be reused later */
gst_pad_push_event (base->sinkpad, gst_event_ref (flush_event));
/* And actually flush our pending data but allow to preserve some info
* to perform the seek */
mpegts_base_flush (base, FALSE);
mpegts_packetizer_flush (base->packetizer, FALSE);
}
if (flags & (GST_SEEK_FLAG_SEGMENT)) {
GST_WARNING ("seek flags 0x%x are not supported", (int) flags);
goto done;
}
/* If the subclass can seek, do that */
ret = klass->seek (base, event);
if (G_UNLIKELY (ret != GST_FLOW_OK))
GST_WARNING ("seeking failed %s", gst_flow_get_name (ret));
else
base->last_seek_seqnum = GST_EVENT_SEQNUM (event);
if (flush_event) {
/* if we sent a FLUSH_START, we now send a FLUSH_STOP */
GST_DEBUG_OBJECT (base, "sending flush stop");
GST_MPEGTS_BASE_GET_CLASS (base)->push_event (base, flush_event);
flush_event = NULL;
}
done:
if (flush_event)
gst_event_unref (flush_event);
gst_pad_start_task (base->sinkpad, (GstTaskFunction) mpegts_base_loop, base,
NULL);
GST_PAD_STREAM_UNLOCK (base->sinkpad);
return ret == GST_FLOW_OK;
}
static gboolean
gst_midi_parse_perform_seek (GstMidiParse * midiparse, GstEvent * event)
{
gboolean res = TRUE, tres;
gdouble rate;
GstFormat seek_format;
GstSeekFlags flags;
GstSeekType start_type, stop_type;
gint64 start, stop;
gboolean flush;
gboolean update;
GstSegment seeksegment;
guint32 seqnum;
GstEvent *tevent;
GST_DEBUG_OBJECT (midiparse, "doing seek: %" GST_PTR_FORMAT, event);
if (event) {
gst_event_parse_seek (event, &rate, &seek_format, &flags,
&start_type, &start, &stop_type, &stop);
if (seek_format != GST_FORMAT_TIME)
goto invalid_format;
flush = flags & GST_SEEK_FLAG_FLUSH;
seqnum = gst_event_get_seqnum (event);
} else {
flush = FALSE;
/* get next seqnum */
seqnum = gst_util_seqnum_next ();
}
/* send flush start */
if (flush) {
tevent = gst_event_new_flush_start ();
gst_event_set_seqnum (tevent, seqnum);
gst_pad_push_event (midiparse->srcpad, tevent);
} else
gst_pad_pause_task (midiparse->srcpad);
/* grab streaming lock, this should eventually be possible, either
* because the task is paused, our streaming thread stopped
* or because our peer is flushing. */
GST_PAD_STREAM_LOCK (midiparse->sinkpad);
if (G_UNLIKELY (midiparse->seqnum == seqnum)) {
/* we have seen this event before, issue a warning for now */
GST_WARNING_OBJECT (midiparse, "duplicate event found %" G_GUINT32_FORMAT,
seqnum);
} else {
midiparse->seqnum = seqnum;
GST_DEBUG_OBJECT (midiparse, "seek with seqnum %" G_GUINT32_FORMAT, seqnum);
}
/* Copy the current segment info into the temp segment that we can actually
* attempt the seek with. We only update the real segment if the seek succeeds. */
memcpy (&seeksegment, &midiparse->segment, sizeof (GstSegment));
/* now configure the final seek segment */
if (event) {
gst_segment_do_seek (&seeksegment, rate, seek_format, flags,
start_type, start, stop_type, stop, &update);
}
/* Else, no seek event passed, so we're just (re)starting the
current segment. */
GST_DEBUG_OBJECT (midiparse, "segment configured from %" G_GINT64_FORMAT
" to %" G_GINT64_FORMAT ", position %" G_GINT64_FORMAT,
seeksegment.start, seeksegment.stop, seeksegment.position);
/* do the seek, segment.position contains the new position. */
res = gst_midi_parse_do_seek (midiparse, &seeksegment);
/* and prepare to continue streaming */
if (flush) {
tevent = gst_event_new_flush_stop (TRUE);
gst_event_set_seqnum (tevent, seqnum);
/* send flush stop, peer will accept data and events again. We
* are not yet providing data as we still have the STREAM_LOCK. */
gst_pad_push_event (midiparse->srcpad, tevent);
}
/* if the seek was successful, we update our real segment and push
* out the new segment. */
if (res) {
GST_OBJECT_LOCK (midiparse);
memcpy (&midiparse->segment, &seeksegment, sizeof (GstSegment));
GST_OBJECT_UNLOCK (midiparse);
if (seeksegment.flags & GST_SEGMENT_FLAG_SEGMENT) {
GstMessage *message;
message = gst_message_new_segment_start (GST_OBJECT (midiparse),
seeksegment.format, seeksegment.position);
gst_message_set_seqnum (message, seqnum);
gst_element_post_message (GST_ELEMENT (midiparse), message);
}
/* for deriving a stop position for the playback segment from the seek
* segment, we must take the duration when the stop is not set */
if ((stop = seeksegment.stop) == -1)
stop = seeksegment.duration;
midiparse->segment_pending = TRUE;
midiparse->discont = TRUE;
}
/* and restart the task in case it got paused explicitly or by
* the FLUSH_START event we pushed out. */
tres =
gst_pad_start_task (midiparse->sinkpad,
(GstTaskFunction) gst_midi_parse_loop, midiparse->sinkpad, NULL);
if (res && !tres)
res = FALSE;
/* and release the lock again so we can continue streaming */
GST_PAD_STREAM_UNLOCK (midiparse->sinkpad);
return res;
/* ERROR */
invalid_format:
{
GST_DEBUG_OBJECT (midiparse, "Unsupported seek format %s",
gst_format_get_name (seek_format));
return FALSE;
}
}
static gboolean
theora_dec_src_event (GstPad * pad, GstEvent * event)
{
gboolean res = TRUE;
GstTheoraDec *dec;
dec = GST_THEORA_DEC (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
{
GstFormat format, tformat;
gdouble rate;
GstEvent *real_seek;
GstSeekFlags flags;
GstSeekType cur_type, stop_type;
gint64 cur, stop;
gint64 tcur, tstop;
guint32 seqnum;
gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
&stop_type, &stop);
seqnum = gst_event_get_seqnum (event);
gst_event_unref (event);
/* we have to ask our peer to seek to time here as we know
* nothing about how to generate a granulepos from the src
* formats or anything.
*
* First bring the requested format to time
*/
tformat = GST_FORMAT_TIME;
if (!(res = theora_dec_src_convert (pad, format, cur, &tformat, &tcur)))
goto convert_error;
if (!(res = theora_dec_src_convert (pad, format, stop, &tformat, &tstop)))
goto convert_error;
/* then seek with time on the peer */
real_seek = gst_event_new_seek (rate, GST_FORMAT_TIME,
flags, cur_type, tcur, stop_type, tstop);
gst_event_set_seqnum (real_seek, seqnum);
res = gst_pad_push_event (dec->sinkpad, real_seek);
break;
}
case GST_EVENT_QOS:
{
gdouble proportion;
GstClockTimeDiff diff;
GstClockTime timestamp;
gst_event_parse_qos (event, &proportion, &diff, ×tamp);
/* we cannot randomly skip frame decoding since we don't have
* B frames. we can however use the timestamp and diff to not
* push late frames. This would at least save us the time to
* crop/memcpy the data. */
GST_OBJECT_LOCK (dec);
dec->proportion = proportion;
dec->earliest_time = timestamp + diff;
GST_OBJECT_UNLOCK (dec);
GST_DEBUG_OBJECT (dec, "got QoS %" GST_TIME_FORMAT ", %" G_GINT64_FORMAT,
GST_TIME_ARGS (timestamp), diff);
res = gst_pad_push_event (dec->sinkpad, event);
break;
}
default:
res = gst_pad_push_event (dec->sinkpad, event);
break;
}
done:
gst_object_unref (dec);
return res;
/* ERRORS */
convert_error:
{
GST_DEBUG_OBJECT (dec, "could not convert format");
goto done;
}
}
