<html><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>The existing code is correct. The reason for this code is to ensure that sending a (RTP or RTCP) packet over a TCP connection - which involves two separate writes: one for a header; another for the packet data itself - occurs as an atomic operation. I.e., we want either neither of the writes to succeed, or both of them to succeed. If the write of the header were to succeed, but the subsequent write of the packet data were to fail, then you'd end up with invalid data being sent (and thus received) over the TCP connection.</div><div><br></div><div>Your write operation is blocking because your stream is - at least temporarily - exceeding the capacity of your network. To avoid this, you need a slower stream, or a faster network.</div><div><br></div><div>A reminder - yet again - that RTP/RTCP-over-TCP should be used *only* if you have a firewall that is blocking UDP packets.</div><br><div apple-content-edited="true">
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; ">Ross Finlayson<br>Live Networks, Inc.<br><a href="http://www.live555.com/">http://www.live555.com/</a></span></span>
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