static gboolean
gst_raw_parse_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstRawParse *rp = GST_RAW_PARSE (parent);
gboolean ret;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
case GST_EVENT_FLUSH_STOP:
/* Only happens in push mode */
gst_raw_parse_reset (rp);
ret = gst_pad_push_event (rp->srcpad, event);
break;
case GST_EVENT_SEGMENT:
{
GstSegment segment;
/* Only happens in push mode */
gst_event_copy_segment (event, &segment);
if (segment.format != GST_FORMAT_TIME) {
gst_event_unref (event);
ret =
gst_raw_parse_convert (rp, segment.format, segment.start,
GST_FORMAT_TIME, (gint64 *) & segment.start);
ret &= gst_raw_parse_convert (rp, segment.format, segment.time,
GST_FORMAT_TIME, (gint64 *) & segment.time);
ret &= gst_raw_parse_convert (rp, segment.format, segment.stop,
GST_FORMAT_TIME, (gint64 *) & segment.stop);
if (!ret) {
GST_ERROR_OBJECT (rp,
"Failed converting to GST_FORMAT_TIME format (%d)",
segment.format);
break;
}
segment.format = GST_FORMAT_TIME;
event = gst_event_new_segment (&segment);
}
gst_segment_copy_into (&segment, &rp->segment);
if (rp->start_segment)
gst_event_unref (rp->start_segment);
rp->start_segment = event;
ret = TRUE;
break;
}
default:
ret = gst_pad_event_default (pad, parent, event);
break;
}
return ret;
}
/**
* gst_event_copy_segment:
* @event: The event to parse
* @segment: a pointer to a #GstSegment
*
* Parses a segment @event and copies the #GstSegment into the location
* given by @segment.
*/
void
gst_event_copy_segment (GstEvent * event, GstSegment * segment)
{
const GstSegment *src;
g_return_if_fail (GST_IS_EVENT (event));
g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_SEGMENT);
if (segment) {
gst_event_parse_segment (event, &src);
gst_segment_copy_into (src, segment);
}
}
static gboolean
gst_dvdec_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstDVDec *dvdec;
gboolean res = TRUE;
dvdec = GST_DVDEC (parent);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_STOP:
gst_segment_init (&dvdec->segment, GST_FORMAT_UNDEFINED);
dvdec->need_segment = FALSE;
break;
case GST_EVENT_SEGMENT:{
const GstSegment *segment;
gst_event_parse_segment (event, &segment);
GST_DEBUG_OBJECT (dvdec, "Got SEGMENT %" GST_SEGMENT_FORMAT, &segment);
gst_segment_copy_into (segment, &dvdec->segment);
if (!gst_pad_has_current_caps (dvdec->srcpad)) {
dvdec->need_segment = TRUE;
gst_event_unref (event);
event = NULL;
res = TRUE;
} else {
dvdec->need_segment = FALSE;
}
break;
}
case GST_EVENT_CAPS:
{
GstCaps *caps;
gst_event_parse_caps (event, &caps);
res = gst_dvdec_sink_setcaps (dvdec, caps);
gst_event_unref (event);
event = NULL;
break;
}
default:
break;
}
if (event)
res = gst_pad_push_event (dvdec->srcpad, event);
return res;
}
static gboolean
gst_segment_clip_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstSegmentClip *self = GST_SEGMENT_CLIP (parent);
gboolean ret = TRUE;
GST_LOG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CAPS:
{
GstCaps *caps;
/* should be only downstream */
g_assert (pad == self->sinkpad);
gst_event_parse_caps (event, &caps);
ret = gst_segment_clip_sink_setcaps (self, caps);
break;
}
case GST_EVENT_SEGMENT:
{
const GstSegment *segment;
gst_event_parse_segment (event, &segment);
GST_DEBUG_OBJECT (pad, "Got NEWSEGMENT event %" GST_SEGMENT_FORMAT,
segment);
gst_segment_copy_into (segment, &self->segment);
break;
}
case GST_EVENT_FLUSH_STOP:
gst_segment_clip_reset (self);
break;
default:
break;
}
if (ret)
ret = gst_pad_event_default (pad, parent, event);
else
gst_event_unref (event);
return ret;
}
/**
* gst_sample_new:
* @buffer: (transfer none) (allow-none): a #GstBuffer, or NULL
* @caps: (transfer none) (allow-none): a #GstCaps, or NULL
* @segment: transfer none) (allow-none): a #GstSegment, or NULL
* @info: (transfer full) (allow-none): a #GstStructure, or NULL
*
* Create a new #GstSample with the provided details.
*
* Free-function: gst_sample_unref
*
* Returns: (transfer full): the new #GstSample. gst_sample_unref()
* after usage.
*/
GstSample *
gst_sample_new (GstBuffer * buffer, GstCaps * caps, const GstSegment * segment,
GstStructure * info)
{
GstSample *sample;
sample = g_slice_new0 (GstSample);
GST_LOG ("new %p", sample);
gst_mini_object_init (GST_MINI_OBJECT_CAST (sample), 0, _gst_sample_type,
(GstMiniObjectCopyFunction) _gst_sample_copy, NULL,
(GstMiniObjectFreeFunction) _gst_sample_free);
sample->buffer = buffer ? gst_buffer_ref (buffer) : NULL;
sample->caps = caps ? gst_caps_ref (caps) : NULL;
if (segment)
gst_segment_copy_into (segment, &sample->segment);
else
gst_segment_init (&sample->segment, GST_FORMAT_TIME);
if (info) {
if (!gst_structure_set_parent_refcount (info,
&sample->mini_object.refcount))
goto had_parent;
sample->info = info;
}
return sample;
/* ERRORS */
had_parent:
{
gst_sample_unref (sample);
g_warning ("structure is already owned by another object");
return NULL;
}
}
/* sink and src pad event handlers */
static gboolean
gst_ivtc_sink_event (GstBaseTransform * trans, GstEvent * event)
{
GstIvtc *ivtc = GST_IVTC (trans);
GST_DEBUG_OBJECT (ivtc, "sink_event");
if (GST_EVENT_TYPE (event) == GST_EVENT_SEGMENT) {
const GstSegment *seg;
gst_ivtc_flush (ivtc);
/* FIXME this should handle update events */
gst_event_parse_segment (event, &seg);
gst_segment_copy_into (seg, &ivtc->segment);
ivtc->current_ts = ivtc->segment.start;
}
return GST_BASE_TRANSFORM_CLASS (gst_ivtc_parent_class)->sink_event (trans,
event);
}
GstPadProbeReturn GStreamerReader::EventProbe(GstPad *aPad, GstEvent *aEvent)
{
GstElement* parent = GST_ELEMENT(gst_pad_get_parent(aPad));
LOG(PR_LOG_DEBUG, "event probe %s", GST_EVENT_TYPE_NAME (aEvent));
switch(GST_EVENT_TYPE(aEvent)) {
case GST_EVENT_SEGMENT:
{
const GstSegment *newSegment;
GstSegment* segment;
/* Store the segments so we can convert timestamps to stream time, which
* is what the upper layers sync on.
*/
ReentrantMonitorAutoEnter mon(mGstThreadsMonitor);
#if GST_VERSION_MINOR <= 1 && GST_VERSION_MICRO < 1
ResetDecode();
#endif
gst_event_parse_segment(aEvent, &newSegment);
if (parent == GST_ELEMENT(mVideoAppSink))
segment = &mVideoSegment;
else
segment = &mAudioSegment;
gst_segment_copy_into (newSegment, segment);
break;
}
case GST_EVENT_FLUSH_STOP:
/* Reset on seeks */
ResetDecode();
break;
default:
break;
}
gst_object_unref(parent);
return GST_PAD_PROBE_OK;
}
static gboolean
gst_video_rate_sink_event (GstBaseTransform * trans, GstEvent * event)
{
GstVideoRate *videorate;
videorate = GST_VIDEO_RATE (trans);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEGMENT:
{
const GstSegment *segment;
gst_event_parse_segment (event, &segment);
if (segment->format != GST_FORMAT_TIME)
goto format_error;
GST_DEBUG_OBJECT (videorate, "handle NEWSEGMENT");
/* close up the previous segment, if appropriate */
if (videorate->prevbuf) {
gint count = 0;
GstFlowReturn res;
res = GST_FLOW_OK;
/* fill up to the end of current segment,
* or only send out the stored buffer if there is no specific stop.
* regardless, prevent going loopy in strange cases */
while (res == GST_FLOW_OK && count <= MAGIC_LIMIT &&
((GST_CLOCK_TIME_IS_VALID (videorate->segment.stop) &&
videorate->next_ts - videorate->segment.base
< videorate->segment.stop)
|| count < 1)) {
res = gst_video_rate_flush_prev (videorate, count > 0);
count++;
}
if (count > 1) {
videorate->dup += count - 1;
if (!videorate->silent)
gst_video_rate_notify_duplicate (videorate);
} else if (count == 0) {
videorate->drop++;
if (!videorate->silent)
gst_video_rate_notify_drop (videorate);
}
/* clean up for the new one; _chain will resume from the new start */
gst_video_rate_swap_prev (videorate, NULL, 0);
}
videorate->base_ts = 0;
videorate->out_frame_count = 0;
videorate->next_ts = GST_CLOCK_TIME_NONE;
/* We just want to update the accumulated stream_time */
gst_segment_copy_into (segment, &videorate->segment);
GST_DEBUG_OBJECT (videorate, "updated segment: %" GST_SEGMENT_FORMAT,
&videorate->segment);
break;
}
case GST_EVENT_EOS:{
gint count = 0;
GstFlowReturn res = GST_FLOW_OK;
GST_DEBUG_OBJECT (videorate, "Got EOS");
/* If the segment has a stop position, fill the segment */
if (GST_CLOCK_TIME_IS_VALID (videorate->segment.stop)) {
/* fill up to the end of current segment,
* or only send out the stored buffer if there is no specific stop.
* regardless, prevent going loopy in strange cases */
while (res == GST_FLOW_OK && count <= MAGIC_LIMIT &&
((videorate->next_ts - videorate->segment.base <
videorate->segment.stop)
|| count < 1)) {
res = gst_video_rate_flush_prev (videorate, count > 0);
count++;
}
} else if (videorate->prevbuf) {
/* Output at least one frame but if the buffer duration is valid, output
* enough frames to use the complete buffer duration */
if (GST_BUFFER_DURATION_IS_VALID (videorate->prevbuf)) {
GstClockTime end_ts =
videorate->next_ts + GST_BUFFER_DURATION (videorate->prevbuf);
while (res == GST_FLOW_OK && count <= MAGIC_LIMIT &&
((videorate->next_ts - videorate->segment.base < end_ts)
|| count < 1)) {
res = gst_video_rate_flush_prev (videorate, count > 0);
count++;
}
} else {
res = gst_video_rate_flush_prev (videorate, FALSE);
count = 1;
}
}
if (count > 1) {
videorate->dup += count - 1;
if (!videorate->silent)
gst_video_rate_notify_duplicate (videorate);
} else if (count == 0) {
videorate->drop++;
if (!videorate->silent)
gst_video_rate_notify_drop (videorate);
}
break;
}
case GST_EVENT_FLUSH_STOP:
/* also resets the segment */
GST_DEBUG_OBJECT (videorate, "Got FLUSH_STOP");
gst_video_rate_reset (videorate);
break;
case GST_EVENT_GAP:
/* no gaps after videorate, ignore the event */
gst_event_unref (event);
return TRUE;
default:
break;
}
return GST_BASE_TRANSFORM_CLASS (parent_class)->sink_event (trans, event);
/* ERRORS */
format_error:
{
GST_WARNING_OBJECT (videorate,
"Got segment but doesn't have GST_FORMAT_TIME value");
return FALSE;
}
}
/* 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;
}
/**
* progress_buffer_enqueue_item()
*
* Add an item in the queue. Must be called in the locked context. Item may be event or data.
*/
static GstFlowReturn progress_buffer_enqueue_item(ProgressBuffer *element, GstMiniObject *item)
{
gboolean signal = FALSE;
if (GST_IS_BUFFER (item))
{
gdouble elapsed;
// update sink segment position
element->sink_segment.position = GST_BUFFER_OFFSET(GST_BUFFER(item)) + gst_buffer_get_size (GST_BUFFER(item));
if(element->sink_segment.stop < element->sink_segment.position) // This must never happen.
return GST_FLOW_ERROR;
cache_write_buffer(element->cache, GST_BUFFER(item));
elapsed = g_timer_elapsed(element->bandwidth_timer, NULL);
element->subtotal += gst_buffer_get_size (GST_BUFFER(item));
if (elapsed > 1.0)
{
element->bandwidth = element->subtotal/elapsed;
element->subtotal = 0;
g_timer_start(element->bandwidth_timer);
}
// send buffer progress position up (used to track buffer fill, etc.)
signal = send_position_message(element, signal);
}
else if (GST_IS_EVENT (item))
{
GstEvent *event = GST_EVENT_CAST (item);
switch (GST_EVENT_TYPE (event))
{
case GST_EVENT_EOS:
element->eos_status.eos = TRUE;
if (element->sink_segment.position < element->sink_segment.stop)
element->sink_segment.stop = element->sink_segment.position;
progress_buffer_set_pending_event(element, NULL);
signal = send_position_message(element, TRUE);
gst_event_unref(event); // INLINE - gst_event_unref()
break;
case GST_EVENT_SEGMENT:
{
GstSegment segment;
element->unexpected = FALSE;
gst_event_copy_segment (event, &segment);
if (segment.format != GST_FORMAT_BYTES)
{
gst_element_message_full(GST_ELEMENT(element), GST_MESSAGE_ERROR, GST_STREAM_ERROR, GST_STREAM_ERROR_FORMAT,
g_strdup("GST_FORMAT_BYTES buffers expected."), NULL,
("progressbuffer.c"), ("progress_buffer_enqueue_item"), 0);
gst_event_unref(event); // INLINE - gst_event_unref()
return GST_FLOW_ERROR;
}
if (segment.stop - segment.start <= 0)
{
gst_element_message_full(GST_ELEMENT(element), GST_MESSAGE_ERROR, GST_STREAM_ERROR, GST_STREAM_ERROR_WRONG_TYPE,
g_strdup("Only limited content is supported by progressbuffer."), NULL,
("progressbuffer.c"), ("progress_buffer_enqueue_item"), 0);
gst_event_unref(event); // INLINE - gst_event_unref()
return GST_FLOW_ERROR;
}
if ((segment.flags & GST_SEGMENT_FLAG_UPDATE) == GST_SEGMENT_FLAG_UPDATE) // Updating segments create new cache.
{
if (element->cache)
destroy_cache(element->cache);
element->cache = create_cache();
if (!element->cache)
{
gst_element_message_full(GST_ELEMENT(element), GST_MESSAGE_ERROR, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_OPEN_READ_WRITE,
g_strdup("Couldn't create backing cache"), NULL,
("progressbuffer.c"), ("progress_buffer_enqueue_item"), 0);
gst_event_unref(event); // INLINE - gst_event_unref()
return GST_FLOW_ERROR;
}
}
else
{
cache_set_write_position(element->cache, 0);
cache_set_read_position(element->cache, 0);
element->cache_read_offset = segment.start;
}
gst_segment_copy_into (&segment, &element->sink_segment);
progress_buffer_set_pending_event(element, event);
element->instant_seek = TRUE;
signal = send_position_message(element, TRUE);
break;
}
default:
gst_event_unref(event); // INLINE - gst_event_unref()
break;
}
}
if (signal)
g_cond_signal(&element->add_cond);
return GST_FLOW_OK;
}
static gboolean mpegts_demuxer_sink_event(GstPad *pad, GstObject *parent, GstEvent *event)
{
MpegTSDemuxer *demuxer = MPEGTS_DEMUXER(parent);
gboolean result = TRUE;
switch (GST_EVENT_TYPE(event))
{
case GST_EVENT_EOS:
#ifdef DEBUG_OUTPUT
g_print("MpegTS sinkEvent: EOS\n");
#endif
g_mutex_lock(&demuxer->lock);
demuxer->is_eos = TRUE;
g_cond_signal(&demuxer->add_cond); // Signal read callback to read up remaining data.
g_mutex_unlock(&demuxer->lock);
gst_event_unref(event);
break;
case GST_EVENT_FLUSH_START:
#ifdef DEBUG_OUTPUT
g_print("MpegTS sinkEvent: FLUSH_START ...");
#endif
result = gst_pad_event_default(demuxer->sinkpad, parent, event);
g_mutex_lock(&demuxer->lock);
demuxer->is_flushing = TRUE;
g_cond_signal(&demuxer->del_cond); // Signal _chain() and read callback to wake them up and update state.
g_cond_signal(&demuxer->add_cond);
g_mutex_unlock(&demuxer->lock);
if (demuxer->reader_thread)
{
g_thread_join(demuxer->reader_thread);
demuxer->reader_thread = NULL;
}
#ifdef DEBUG_OUTPUT
g_print("done.\n");
#endif
break;
case GST_EVENT_FLUSH_STOP: // Stop flushing buffers.
g_mutex_lock(&demuxer->lock);
mpegts_demuxer_flush(demuxer);
demuxer->is_flushing = FALSE; // Unset flag so chain function accepts buffers.
g_mutex_unlock(&demuxer->lock);
result = gst_pad_event_default(demuxer->sinkpad, parent, event);
#ifdef DEBUG_OUTPUT
g_print("MpegTS sinkEvent: FLUSH_STOP\n");
#endif
break;
case GST_EVENT_SEGMENT:
{
GstSegment segment;
gst_event_copy_segment(event, &segment);
gst_event_unref(event);
g_mutex_lock(&demuxer->lock);
if (!demuxer->is_closing)
{
#ifdef DEBUG_OUTPUT
g_print("MpegTS sinkEvent: NEW_SEGMENT, time=%.2f\n",
time != GST_CLOCK_TIME_NONE ? (double)time/GST_SECOND : -1.0);
#endif
if (segment.format == GST_FORMAT_TIME)
{
gst_segment_copy_into(&segment, &demuxer->audio.segment);
gst_segment_copy_into(&segment, &demuxer->video.segment);
}
demuxer->audio.discont = demuxer->video.discont = TRUE;
demuxer->is_eos = FALSE;
demuxer->is_last_buffer_send = FALSE;
demuxer->is_reading = TRUE;
if (!demuxer->reader_thread)
{
demuxer->reader_thread = g_thread_new(NULL, mpegts_demuxer_process_input, demuxer);
#ifdef DEBUG_OUTPUT
g_print("MpegTS: Process_input thread created\n");
#endif
}
else
post_message(demuxer, "Demuxer thread is not null", GST_MESSAGE_ERROR, GST_CORE_ERROR, GST_CORE_ERROR_THREAD);
}
g_mutex_unlock(&demuxer->lock);
break;
}
default:
result = mpegts_demuxer_push_to_sources(demuxer, event);
break;
}
return result;
}
static gboolean
splitmux_part_pad_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstSplitMuxPartPad *part_pad = SPLITMUX_PART_PAD_CAST (pad);
GstSplitMuxPartReader *reader = part_pad->reader;
gboolean ret = TRUE;
SplitMuxSrcPad *target;
GstDataQueueItem *item;
SPLITMUX_PART_LOCK (reader);
target = gst_object_ref (part_pad->target);
GST_LOG_OBJECT (reader, "Pad %" GST_PTR_FORMAT " event %" GST_PTR_FORMAT, pad,
event);
if (part_pad->flushing && GST_EVENT_TYPE (event) != GST_EVENT_FLUSH_STOP)
goto drop_event;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEGMENT:{
GstSegment *seg = &part_pad->segment;
GST_LOG_OBJECT (pad, "Received segment %" GST_PTR_FORMAT, event);
gst_event_copy_segment (event, seg);
gst_event_copy_segment (event, &part_pad->orig_segment);
if (seg->format != GST_FORMAT_TIME)
goto wrong_segment;
/* Adjust segment */
/* Adjust start/stop so the overall file is 0 + start_offset based */
if (seg->stop != -1) {
seg->stop -= seg->start;
seg->stop += seg->time + reader->start_offset;
}
seg->start = seg->time + reader->start_offset;
seg->time += reader->start_offset;
seg->position += reader->start_offset;
GST_LOG_OBJECT (pad, "Adjusted segment now %" GST_PTR_FORMAT, event);
/* Replace event */
gst_event_unref (event);
event = gst_event_new_segment (seg);
if (reader->prep_state != PART_STATE_PREPARING_COLLECT_STREAMS
&& reader->prep_state != PART_STATE_PREPARING_MEASURE_STREAMS)
break; /* Only do further stuff with segments during initial measuring */
/* Take the first segment from the first part */
if (target->segment.format == GST_FORMAT_UNDEFINED) {
gst_segment_copy_into (seg, &target->segment);
GST_DEBUG_OBJECT (reader,
"Target pad segment now %" GST_SEGMENT_FORMAT, &target->segment);
}
if (seg->stop != -1 && target->segment.stop != -1) {
GstClockTime stop = seg->base + seg->stop;
if (stop > target->segment.stop) {
target->segment.stop = stop;
GST_DEBUG_OBJECT (reader,
"Adjusting segment stop by %" GST_TIME_FORMAT
" output now %" GST_SEGMENT_FORMAT,
GST_TIME_ARGS (reader->start_offset), &target->segment);
}
}
GST_LOG_OBJECT (pad, "Forwarding segment %" GST_PTR_FORMAT, event);
break;
}
case GST_EVENT_EOS:{
GST_DEBUG_OBJECT (part_pad,
"State %u EOS event. MaxTS seen %" GST_TIME_FORMAT,
reader->prep_state, GST_TIME_ARGS (part_pad->max_ts));
if (reader->prep_state == PART_STATE_PREPARING_COLLECT_STREAMS ||
reader->prep_state == PART_STATE_PREPARING_MEASURE_STREAMS) {
/* Mark this pad as EOS */
part_pad->is_eos = TRUE;
if (splitmux_part_is_eos_locked (reader)) {
/* Finished measuring things, set state and tell the state change func
* so it can seek back to the start */
GST_LOG_OBJECT (reader,
"EOS while measuring streams. Resetting for ready");
reader->prep_state = PART_STATE_PREPARING_RESET_FOR_READY;
SPLITMUX_PART_BROADCAST (reader);
}
goto drop_event;
}
break;
}
case GST_EVENT_FLUSH_START:
reader->flushing = TRUE;
part_pad->flushing = TRUE;
GST_LOG_OBJECT (reader, "Pad %" GST_PTR_FORMAT " flushing dataqueue",
part_pad);
gst_data_queue_set_flushing (part_pad->queue, TRUE);
SPLITMUX_PART_BROADCAST (reader);
break;
case GST_EVENT_FLUSH_STOP:{
gst_data_queue_set_flushing (part_pad->queue, FALSE);
gst_data_queue_flush (part_pad->queue);
part_pad->seen_buffer = FALSE;
part_pad->flushing = FALSE;
part_pad->is_eos = FALSE;
reader->flushing = splitmux_is_flushing (reader);
GST_LOG_OBJECT (reader,
"%s pad %" GST_PTR_FORMAT " flush_stop. Overall flushing=%d",
reader->path, pad, reader->flushing);
SPLITMUX_PART_BROADCAST (reader);
break;
}
default:
break;
}
/* Don't send events downstream while preparing */
if (reader->prep_state != PART_STATE_READY)
goto drop_event;
/* Don't pass flush events - those are done by the parent */
if (GST_EVENT_TYPE (event) == GST_EVENT_FLUSH_START ||
GST_EVENT_TYPE (event) == GST_EVENT_FLUSH_STOP)
goto drop_event;
if (!block_until_can_push (reader)) {
SPLITMUX_PART_UNLOCK (reader);
gst_object_unref (target);
gst_event_unref (event);
return FALSE;
}
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_GAP:{
/* FIXME: Drop initial gap (if any) in each segment, not all GAPs */
goto drop_event;
}
default:
break;
}
/* We are active, and one queue is empty, place this buffer in
* the dataqueue */
gst_object_ref (part_pad->queue);
SPLITMUX_PART_UNLOCK (reader);
GST_LOG_OBJECT (reader, "Enqueueing event %" GST_PTR_FORMAT, event);
item = g_slice_new (GstDataQueueItem);
item->destroy = (GDestroyNotify) splitmux_part_free_queue_item;
item->object = GST_MINI_OBJECT (event);
item->size = 0;
item->duration = 0;
if (item->duration == GST_CLOCK_TIME_NONE)
item->duration = 0;
item->visible = FALSE;
if (!gst_data_queue_push (part_pad->queue, item)) {
splitmux_part_free_queue_item (item);
ret = FALSE;
}
gst_object_unref (part_pad->queue);
gst_object_unref (target);
return ret;
wrong_segment:
gst_event_unref (event);
gst_object_unref (target);
SPLITMUX_PART_UNLOCK (reader);
GST_ELEMENT_ERROR (reader, STREAM, FAILED, (NULL),
("Received non-time segment - reader %s pad %" GST_PTR_FORMAT,
reader->path, pad));
return FALSE;
drop_event:
GST_LOG_OBJECT (pad, "Dropping event %" GST_PTR_FORMAT
" from %" GST_PTR_FORMAT " on %" GST_PTR_FORMAT, event, pad, target);
gst_event_unref (event);
gst_object_unref (target);
SPLITMUX_PART_UNLOCK (reader);
return TRUE;
}
