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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">All,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Please review the text changes proposed by Bob. We did discuss the need to make changes in the ‘cmap’ format 4 spec (https://groups.yahoo.com/neo/groups/mpeg-OTspec/conversations/topics/1107)
to make sure it matches with the expected behavior of the existing implementations but have not [until now] discussed the proposed new spec language (see below).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">If I don’t receive any objection by the end of this week I will incorporate the language Bob Hallissy proposed as AHG consensus opinion.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thank you,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Vladimir<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"> mpeg-OTspec@yahoogroups.com [mailto:mpeg-OTspec@yahoogroups.com]
<b>On Behalf Of </b>Bob Hallissy<br>
<b>Sent:</b> Wednesday, March 12, 2014 5:43 PM<br>
<b>To:</b> OTspec<br>
<b>Subject:</b> Re: [mpeg-OTspec] cmap format4 structure question<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><br>
<br>
<br>
<o:p></o:p></p>
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<p class="MsoNormal">On 2014-01-24 8:41 AM, Opstad, Dave wrote:<o:p></o:p></p>
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<p class="MsoNormal">As I recall, the TrueType code for format 4 'cmap' subtables is looking for a sentinel of (0xFFFF, 0xFFFF) specifically, so I don't think the (0xFFFC, 0xFFFF) you posit would work.
<o:p></o:p></p>
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<p class="MsoNormal">Cheers,<o:p></o:p></p>
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<p class="MsoNormal">Dave Opstad<o:p></o:p></p>
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<p class="MsoNormal"><br>
If this is the case, should the OFF spec be tightened up to reflect this? Specifically, should section 5.2.1.3.3 Format 4: Segment mapping to delta values be revised:<br>
<br>
from:<o:p></o:p></p>
<p class="MsoNormal">For the search to terminate, the final endCode value must be 0xFFFF.<o:p></o:p></p>
<p class="MsoNormal">to:<o:p></o:p></p>
<p class="MsoNormal">For the search to terminate, the final <span style="color:red">
startCode and</span> endCode value<span style="color:red">s</span> must be 0xFFFF.<o:p></o:p></p>
<p class="MsoNormal">Bob<br>
<br>
<br>
<br>
<o:p></o:p></p>
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<p class="MsoNormal"><span style="color:white"><o:p></o:p></span></p>
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