Impala Documentation

virtual void Impala::Core::VideoSet::ExportFrames::HandleNewFrame	(	VideoSet *	vs,
		int	fileId,
		Stream::RgbDataSrc *	src,
		Geometry::Rectangle	rect,
		String	anno
	)			`[inline, virtual]`

Arrived at a new frame in a "bookmark" walk.

Reimplemented from Impala::Core::VideoSet::Listener.

Definition at line 64 of file ExportFrames.h.

References Impala::Core::Stream::RgbDataSrc::DataPtr(), Impala::Core::Stream::RgbDataSrc::FrameHeight(), Impala::Core::Stream::RgbDataSrc::FrameNr(), Impala::Core::Stream::RgbDataSrc::FrameWidth(), ILOG_ERROR, mBuf, mBufSize, mImList, mJpg, mScale, mSplitArchive, Impala::Core::Geometry::NEAREST, Impala::Core::Array::Scale(), Impala::Core::Array::WriteJpgToMemory(), Impala::Core::Array::WritePng(), and Impala::Core::Array::WritePngToMemory().

00066     {
00067         typedef Array::Array2dVec3UInt8 ArrayT;
00068         ArrayT* im = Array::ArrayCreate<ArrayT>
00069             (src->FrameWidth(), src->FrameHeight(), 0, 0, src->DataPtr(), true);
00070         double scale = mScale;
00071         if (mScale > 1) // assume mScale indicates maximum width
00072         {
00073             scale = 1.0;
00074             while (scale * im->CW() > mScale)
00075                 scale *= 0.5;
00076         }
00077         if (mSplitArchive)
00078         {
00079             size_t nrBytes = 0;
00080             ArrayT* sc = 0;
00081             Array::Scale(sc, im, scale, scale, Geometry::NEAREST, true);
00082             if (mJpg)
00083             {
00084                 Array::WriteJpgToMemory(sc, mBuf, mBufSize, &nrBytes);
00085             }
00086             else
00087             {
00088                 Array::WritePngToMemory(sc, mBuf, mBufSize, &nrBytes);
00089             }
00090             delete sc;
00091             Array::Array2dScalarUInt8* data =
00092                 Array::MakeFromData<Array::Array2dScalarUInt8>((UInt8*) mBuf,
00093                                                                nrBytes, 1);
00094             mImList.push_back(data);
00095         }
00096         else
00097         {
00098 #ifndef REPOSITORY_USED // Here comes the deprecated stuff
00099             String fName = vs->GetFilePathFrames(fileId, src->FrameNr(),
00100                                                  ".png", true, false);
00101             if (fName.empty())
00102             {
00103                 ILOG_ERROR("HandleNewFrame : Empty filename");
00104             }
00105             else
00106             {
00107                 Array::WritePng(im, fName, vs->GetDatabase());
00108             }
00109 #else // REPOSITORY_USED
00110             String container = vs->GetContainerFile(fileId);
00111             Persistency::FrameLocator loc(vs->GetLocator(), container,
00112                                           src->FrameNr(), ".png");
00113             Persistency::FrameRepository().Add(loc, im);
00114 #endif // REPOSITORY_USED
00115         }
00116         delete im;
00117     }

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