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EEG DE285 HD Caption Decoder/VANC Monitor - EEG Enterprises

EEG DE285 HD Caption Decoder/VANC Monitor - EEG Enterprises

EEG DE285 HD Caption Decoder/VANC Monitor - EEG Enterprises

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<strong>DE285</strong> <strong>HD</strong> <strong>Caption</strong> <strong>Decoder</strong>/<strong>VANC</strong> <strong>Monitor</strong><strong>Caption</strong> ErrorUnexpectedcontinueDTVCCValid DTV data afterfiller<strong>Caption</strong> channelpacket sequence errorTruncated captionchannel packetInvalid null serviceblockMulti-packetblockserviceNot defining windowX: too many rows<strong>Caption</strong> text overflowDescriptionDTV pairs marked 0xFE should only appearafter an 0xFF pair. (See "Bad DTV triplet" fordefinitions.)If a 708 service block doesn’t fill the captiondata section, the remaining bytes should bemarked as filler.<strong>Caption</strong> channel packets have a two-bit sequencecounter; this means that there was askip. This will usually happen at the sametime as CDP sequence mismatches; it’s unlikelythat one would skip and the otherwouldn’t.<strong>Caption</strong> channel packets aren’t allowed tospan multiple <strong>VANC</strong> packets.A service block had service number zero butnon-zero length.A service block was too long to fit in one<strong>VANC</strong> packet.The FCC requires that decoders be capableof displaying at least four rows. This effectivelymeans that any captioning with morethan four rows is not guaranteed to work onall decoders. This message can be triggeredby a single window with more than four rowsor multiple windows whose rows add up tomore than four.The caption text can’t fit in the current row;some of it was dropped. This may happen ifcertain commands(e.g., create a new window,move to the next row) are lost.Copyright ©2009-2011 <strong>EEG</strong> <strong>Enterprises</strong>, Inc.All rights reserved.33

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