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Match libav's RTMP receive window rollover behaviour

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This commit is contained in:
Thulinma 2022-09-19 17:26:15 +02:00
parent f3c003481d
commit 3e85da2afd
2 changed files with 6 additions and 1 deletions
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5
lib/rtmpchunks.cpp
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@ -475,6 +475,11 @@ bool RTMPStream::Chunk::Parse(Socket::Buffer &buffer){
}
lastrecv[cs_id] = *this;
RTMPStream::rec_cnt += i + real_len;
if (RTMPStream::rec_cnt >= 0xf0000000){
INFO_MSG("Resetting receive window due to impending rollover");
RTMPStream::rec_cnt -= 0xf0000000;
RTMPStream::rec_window_at = 0;
}
if (len_left == 0){
return true;
}else{

2
src/output/output_rtmp.cpp
View file

@ -1599,7 +1599,7 @@ namespace Mist{
while (next.Parse(inputBuffer)){
// send ACK if we received a whole window
if ((RTMPStream::rec_cnt - RTMPStream::rec_window_at > RTMPStream::rec_window_size) || Util::bootSecs() > lastAck+15){
if ((RTMPStream::rec_cnt - RTMPStream::rec_window_at > RTMPStream::rec_window_size / 4) || Util::bootSecs() > lastAck+15){
lastAck = Util::bootSecs();
RTMPStream::rec_window_at = RTMPStream::rec_cnt;
myConn.SendNow(RTMPStream::SendCTL(3, RTMPStream::rec_cnt)); // send ack (msg 3)