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introduce new logic that keeps the initial keyframe and deletes 1 video frame after it to keep the count down. Also any audio frames it encounters.

This commit is contained in:
Isaac Connor 2021-10-14 12:47:51 -04:00
parent 411d15605a
commit 086bf7a84f
1 changed files with 57 additions and 24 deletions
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81
src/zm_packetqueue.cpp
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@ -86,30 +86,6 @@ bool PacketQueue::queuePacket(std::shared_ptr<ZMPacket> add_packet) {
{
std::unique_lock<std::mutex> lck(mutex);
if (add_packet->packet.stream_index == video_stream_id) {
if ((max_video_packet_count > 0) and (packet_counts[video_stream_id] > max_video_packet_count)) {
Warning("You have set the max video packets in the queue to %u."
" The queue is full. Either Analysis is not keeping up or"
" your camera's keyframe interval is larger than this setting."
, max_video_packet_count);
int count = 10; // give it 10 wake ups to resolve the situation
while (count and (packet_counts[video_stream_id] > max_video_packet_count)) {
Error("Unable to free up older packets. Waiting.");
condition.wait(lck);
if (deleting or zm_terminate)
return false;
count --;
}
if (packet_counts[video_stream_id] > max_video_packet_count) {
Error("Unable to free up older packets. packet_counts %d > max %d. Dropping this packet."
" You may need to increase MaxImageBuffer or reduce keyframe interval.",
packet_counts[video_stream_id], max_video_packet_count);
return false;
}
}
} // end if this packet is a video packet
pktQueue.push_back(add_packet);
packet_counts[add_packet->packet.stream_index] += 1;
Debug(2, "packet counts for %d is %d",
@ -126,6 +102,63 @@ bool PacketQueue::queuePacket(std::shared_ptr<ZMPacket> add_packet) {
--(*iterator_it);
}
} // end foreach iterator
if (
(add_packet->packet.stream_index == video_stream_id)
and
(max_video_packet_count > 0)
and
(packet_counts[video_stream_id] > max_video_packet_count)
) {
Warning("You have set the max video packets in the queue to %u."
" The queue is full. Either Analysis is not keeping up or"
" your camera's keyframe interval is larger than this setting."
, max_video_packet_count);
for (
auto it = ++pktQueue.begin();
it != pktQueue.end() and *it != add_packet;
) {
std::shared_ptr <ZMPacket>zm_packet = *it;
ZMLockedPacket *lp = new ZMLockedPacket(zm_packet);
if (!lp->trylock()) {
Debug(1, "Found locked packet when trying to free up video packets. Skipping to next one");
delete lp;
++it;
continue;
}
for (
auto iterators_it = iterators.begin();
iterators_it != iterators.end();
++iterators_it
) {
auto iterator_it = *iterators_it;
// Have to check each iterator and make sure it doesn't point to the packet we are about to delete
if ((*iterator_it!=pktQueue.end()) and (*(*iterator_it) == zm_packet)) {
Debug(1, "Bumping IT because it is at the front that we are deleting");
++(*iterator_it);
}
} // end foreach iterator
it = pktQueue.erase(it);
packet_counts[zm_packet->packet.stream_index] -= 1;
Debug(1,
"Deleting a packet with stream index:%d image_index:%d with keyframe:%d, video frames in queue:%d max: %d, queuesize:%zu",
zm_packet->packet.stream_index,
zm_packet->image_index,
zm_packet->keyframe,
packet_counts[video_stream_id],
max_video_packet_count,
pktQueue.size());
delete lp;
if (zm_packet->packet.stream_index == video_stream_id)
break;
} // end while
} // end if not able catch up
} // end lock scope
// We signal on every packet because someday we may analyze sound
Debug(4, "packetqueue queuepacket, unlocked signalling");