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Gary,<div><br class="webkit-block-placeholder"></div><div>Note that media type registrations for types designed for transfer using RTP should follow the guidelines and recommendations of RFC 4855, in addition to those in RFC 4288. In particular, RFC 4855 requires additional documentation to indicate whether the type is defined for both RTP and non-RTP use, and if so, to specify any required framing. Such documentation is missing from this draft registration.</div><div><br></div><div>Regards,</div><div>Colin Perkins (IETF AVT co-chair)</div><div><br class="webkit-block-placeholder"></div><div><br class="webkit-block-placeholder"></div><div><br class="webkit-block-placeholder"></div><div><br class="webkit-block-placeholder"></div><div><br style=""><div style=""><div style="">On 27 Nov 2007, at 04:15, Sands, Gary wrote:</div><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Lucida Sans Typewriter'; font-size: 9px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: 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: 0; "><div style=""><div style=""><div class="Section1" style=""><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; ">American Dynamics intends to submit the following registration to IANA.<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; ">As recommended by RFC4288 I submit the intended registration for a two week review period.<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "> Type name: video<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "> Subtype name: vnd.americandynamics.acc<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "> Required parameters: rate (RTP only)<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "> Optional parameters: none<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "> Encoding considerations:<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "> ACC video data is binary data and must be encoded for non-binary transport – typically BASE64.<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "> Security considerations: ACC is a binary file format that contains no<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "> active content and no textual information.<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "> Interoperability considerations: none<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "> Published specification: none<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "> Applications that use this media type: Intellex DVMS, Intellex Management Suite<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "> Additional information:<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "> Magic number(s):<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "> File extension(s): acc<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "> Macintosh file type code(s):<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "> Person & email address to contact for further information: gsands AT tycoint.com<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "> Intended usage: LIMITED USE<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "> Restrictions on usage: This type may be transmitted over RTP.<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "> Author: gsands AT tycoint.com<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "> Change controller: gsands AT tycoint.com<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; ">Other information<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; ">Active Content Compression (ACC) is a proprietary video compression that is optimised for CCTV applications. ACC has been deployed world-wide in security applications since 1997.<o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; ">A white paper on ACC is available at <o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><a href="http://americandynamics.net/webapps/getdocument.aspx?filename=whitepaper_acc_lt_en.pdf" title="http://americandynamics.net/webapps/getdocument.aspx?filename=whitepaper_acc_lt_en.pdf" style="color: blue; text-decoration: underline; ">http://americandynamics.net/webapps/getdocument.aspx?filename=whitepaper_acc_lt_en.pdf</a><o:p></o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><pre style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 10pt; font-family: 'Courier New'; "><font size="2" face="Courier New"><span style="font-size: 10pt; "><o:p> </o:p></span></font></pre><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; "><o:p> </o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; "><o:p> </o:p></span></font></div></div></div><div style="font-size: 7pt; color: gray; font-family: verdana; "><div style="font-size: 7pt; color: gray; font-family: verdana; "> </div><div style="font-size: 7pt; color: gray; font-family: verdana; "><hr></div><div style="font-size: 7pt; color: gray; font-family: verdana; ">Tyco Safety Products/CEM Systems Ltd.</div><div style="font-size: 7pt; color: gray; font-family: verdana; ">Registered in Northern Ireland: NI 25728. Registered Office: Unit 4 Ravenhill Business Park, Ravenhill Road, Belfast, BT6 8AW..</div><div style="font-size: 7pt; color: gray; font-family: verdana; "> </div><div style="font-size: 7pt; color: gray; font-family: verdana; ">Please note that any views or opinions presented in this email are solely those of the author and do not necessarily represent those of the company. This email and any attachments are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the sender immediately and delete any copies in your possession.</div></div></div></span></blockquote></div><div style=""><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Lucida Sans Typewriter; font-size: 9px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Lucida Sans Typewriter; font-size: 9px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Lucida Sans Typewriter; font-size: 9px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Lucida Sans Typewriter; font-size: 9px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Lucida Sans Typewriter; font-size: 9px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div style=""><br class="khtml-block-placeholder" style=""></div><div style="">-- </div><div style="">Colin Perkins</div><div style=""><a href="http://csperkins.org">http://csperkins.org</a>/</div></span></span></span><br class="Apple-interchange-newline" style=""></span></span> </div><br style=""></div></body></html>