| long Impala::Core::VideoSet::Mpeg7Doc::GetMediaDuration | ( | DOMNode * | mediaTime | ) | [inline, private] |
Definition at line 776 of file Mpeg7Doc.h.
References Impala::Util::StringParser::AdvanceP(), Impala::Util::StringParser::Contains(), Impala::Util::StringParser::Eat(), Impala::Util::XmlDoc::GetChildNode(), Impala::Util::XmlDoc::GetElementValue(), and Impala::Util::StringParser::GetInt().
Referenced by AddShot(), and ReadData().
00777 { 00778 DOMNode* duration = GetChildNode(mediaTime, "MediaDuration", true); 00779 String s = GetElementValue(duration); 00780 // e.g. s = PT00H00M04S2122N30000F 00781 Util::StringParser p(s); 00782 p.Eat('T'); // T is begin of duration 00783 long total = 0; 00784 if (p.Contains("H")) 00785 { 00786 total += p.GetInt('H') * 3600; 00787 p.AdvanceP(1); 00788 } 00789 if (p.Contains("M")) 00790 { 00791 total += p.GetInt('M') * 60; 00792 p.AdvanceP(1); 00793 } 00794 if (p.Contains("S")) 00795 { 00796 total += p.GetInt('S'); 00797 p.AdvanceP(1); 00798 } 00799 long fractions = p.GetInt('N'); 00800 p.AdvanceP(1); 00801 long nrFractions = p.GetInt('F'); 00802 long dur = total*nrFractions + fractions; 00803 if (nrFractions == 30000) // probably NTSC with time unit PT1001N30000F 00804 dur /= 1001; 00805 return dur; 00806 }
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