Impala Documentation

void Impala::Visualization::VideoPlayer::OpenVideo	(	RgbDataSrc *	video,
		int	lastFrame = `-1`,
		int	partitionInto = `1`,
		int	partitionIndex = `0`
	)			`[inline]`

Definition at line 97 of file VideoPlayer.h.

References Impala::Core::Stream::RgbDataSrc::GotoFrame(), ILOG_SYSTEM, ILOG_WARN, IsPower2(), Impala::Core::Stream::RgbDataSrc::LastFrame(), Impala::Core::Stream::RgbDataSrc::LASTFRAME_UNKNOWN, mEndFrame, mImH, mImW, mOglView, mOwnRgbDataSrc, mPower2H, mPower2W, mRgbDataSrc, mStartFrame, OglImageReadFrame(), Impala::Core::Stream::RgbDataSrc::Reset(), and Impala::Core::Stream::RgbDataSrc::Valid().

00099     {
00100         if (mOwnRgbDataSrc && mRgbDataSrc)
00101             delete mRgbDataSrc;
00102 
00103         if ( !(mRgbDataSrc = video))
00104         {
00105             viewSys.SetImage(mOglView,0);
00106             return;
00107         }
00108 
00109         if (!mRgbDataSrc->Valid())
00110         {
00111             ILOG_WARN("OpenVideo stream failed");
00112             return;
00113         }
00114 
00115         mRgbDataSrc->Reset();
00116 
00117         if (partitionInto < 1)
00118             return;
00119         if (partitionIndex < 0 || partitionIndex >= partitionInto)
00120             return;
00121 
00122         if (lastFrame < 0)
00123             lastFrame = mRgbDataSrc->LastFrame();
00124         if (lastFrame < 0 || lastFrame == RgbDataSrc::LASTFRAME_UNKNOWN)
00125         {
00126             mRgbDataSrc->GotoFrame(RgbDataSrc::LASTFRAME_UNKNOWN);
00127             lastFrame = mRgbDataSrc->LastFrame();
00128         }
00129         mStartFrame = (partitionIndex * lastFrame) / partitionInto;
00130         if (partitionIndex > 0)
00131             mStartFrame++; // we dont want overlapping frame ranges
00132         mEndFrame = ((partitionIndex + 1) * lastFrame) / partitionInto;
00133 
00134         ILOG_SYSTEM("OpenVideo: " << partitionIndex+1  << " of " <<
00135                     partitionInto << ": " << mStartFrame << " -- " <<
00136                     mEndFrame << " in " << lastFrame << " frames.");
00137 
00138         mRgbDataSrc->GotoFrame(mStartFrame);
00139 
00140         OGLIMAGE* im = OglImageReadFrame(mRgbDataSrc);
00141         mImW = im->w;
00142         mImH = im->h;
00143         IsPower2(mImW, &mPower2W);
00144         IsPower2(mImH, &mPower2H);
00145         im->noTexScaling = 1;
00146 
00147         viewSys.SetImage(mOglView, im);
00148         oglSys.ReleaseOglImage(im);
00149     }

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