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a more realistic calculation of the network stream rate

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This commit is contained in:
Volker Fischer 2013-03-10 17:32:33 +00:00
parent ccadb45f11
commit cbb18ebc03
1 changed files with 5 additions and 2 deletions
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7
src/channel.cpp
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@ -604,9 +604,12 @@ int CChannel::GetUploadRateKbps()
const int iAudioSizeOut = iNetwFrameSizeFact * SYSTEM_FRAME_SIZE_SAMPLES;
// we assume that the UDP packet which is transported via IP has an
// additional header size of
// additional header size of ("Network Music Performance (NMP) in narrow
// band networks; Carot, Kraemer, Schuller; 2006")
// 8 (UDP) + 20 (IP without optional fields) = 28 bytes
return ( iNetwFrameSize * iNetwFrameSizeFact + 28 /* header */ ) *
// 2 (PPP) + 6 (PPPoE) + 18 (MAC) = 26 bytes
// 5 (RFC1483B) + 8 (AAL) + 10 (ATM) = 23 bytes
return ( iNetwFrameSize * iNetwFrameSizeFact + 28 + 26 + 23 /* header */ ) *
8 /* bits per byte */ *
SYSTEM_SAMPLE_RATE_HZ / iAudioSizeOut / 1000;
}