mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-23 18:21:04 +00:00
Code Issues 1 Projects Releases Wiki Activity

rtpstorage: Limit the queue size

Browse source 
Limit to the queue size in case there is no arrival time or in case there is
a huge flood of packets.
This commit is contained in:
Olivier Crête 2019-03-21 18:24:43 -04:00 committed by Mathieu Duponchelle
parent 0ecc52c2ee
commit 915a9c99bb
1 changed files with 44 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

44
gst/rtp/rtpstoragestream.c
View file

@ -84,12 +84,56 @@ rtp_storage_stream_resize (RtpStorageStream * stream, GstClockTime size_time)
}
}
/* This algorithm corresponds to rtp_jitter_buffer_get_seqnum_diff(),
* we want to keep the same number of packets in the worse case.
*/
static guint16
rtp_storage_stream_get_seqnum_diff (RtpStorageStream * stream)
{
guint32 high_seqnum, low_seqnum;
RtpStorageItem *high_item, *low_item;
guint16 result;
high_item = (RtpStorageItem *) g_queue_peek_head (&stream->queue);
low_item = (RtpStorageItem *) g_queue_peek_tail (&stream->queue);
if (!high_item || !low_item || high_item == low_item)
return 0;
high_seqnum = high_item->seq;
low_seqnum = low_item->seq;
/* it needs to work if seqnum wraps */
if (high_seqnum >= low_seqnum) {
result = (guint32) (high_seqnum - low_seqnum);
} else {
result = (guint32) (high_seqnum + G_MAXUINT16 + 1 - low_seqnum);
}
return result;
}
void
rtp_storage_stream_resize_and_add_item (RtpStorageStream * stream,
GstClockTime size_time, GstBuffer * buffer, guint8 pt, guint16 seq)
{
GstClockTime arrival_time = GST_BUFFER_DTS_OR_PTS (buffer);
/* These limits match those of the jittebuffer, we keep a couple more
* packets to avoid races as it can be queried after the output of the
* jitterbuffer.
*/
if (rtp_storage_stream_get_seqnum_diff (stream) >= 32765 ||
stream->queue.length > 10100) {
RtpStorageItem *item = g_queue_pop_tail (&stream->queue);
GST_WARNING ("Queue too big, removing pt=%d seq=%d for ssrc=%08x",
item->pt, item->seq, stream->ssrc);
rtp_storage_item_free (item);
}
if (G_LIKELY (GST_CLOCK_TIME_IS_VALID (arrival_time))) {
if (G_LIKELY (GST_CLOCK_TIME_IS_VALID (stream->max_arrival_time)))
stream->max_arrival_time = MAX (stream->max_arrival_time, arrival_time);