| long Impala::Core::VideoSet::Mpeg7Doc::GetMediaTimePoint | ( | DOMNode * | mediaTime | ) | [inline, private] |
Definition at line 754 of file Mpeg7Doc.h.
References Impala::Util::StringParser::AdvanceP(), Impala::Util::StringParser::Eat(), Impala::Util::XmlDoc::GetChildNode(), Impala::Util::XmlDoc::GetElementValue(), and Impala::Util::StringParser::GetInt().
Referenced by AddShot(), and GetTemporalDecomposition().
00755 { 00756 DOMNode* timePoint = GetChildNode(mediaTime, "MediaTimePoint", true); 00757 String s = GetElementValue(timePoint); 00758 // e.g. s = T00:28:21:5985F30000 00759 Util::StringParser p(s); 00760 p.Eat('T'); // T is begin of time point 00761 long hours = p.GetInt(':'); 00762 long minutes = p.GetInt(':'); 00763 long seconds = p.GetInt(':'); 00764 p.AdvanceP(1); // skip ':', since it is not whitespace for next 00765 long fractions = p.GetInt('F'); 00766 p.AdvanceP(1); 00767 long nrFractions = p.GetInt(); 00768 long frame; 00769 frame = (hours*3600 + minutes*60 + seconds)*nrFractions + fractions; 00770 if (nrFractions == 30000) // probably NTSC with time unit PT1001N30000F 00771 frame = frame / 1001; 00772 return frame; 00773 }
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