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Good idea. Did you test the rotation part? I don't know if the rotation options expected by Qt are the same as returned by the settings. - Christoph Feck On Jan. 18, 2017, 9:36 p.m., Alexander Volkov wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://git.reviewboard.kde.org/r/129851/ > ----------------------------------------------------------- > > (Updated Jan. 18, 2017, 9:36 p.m.) > > > Review request for Plasma. > > > Repository: kio-extras > > > Description > ------- > > QImageReader::setScaledSize() allows to use fast downscaling > for jpeg images (by setting jpeg_decompress_struct::scale_denom). > QImageReader::setQuality(0) sets dct_method to JDCT_IFAST and > do_fancy_upsampling to FALSE, although these parameters don't > really influence on decoding speed, also as do_block_smoothing > which is not used by Qt. > > QImageReader::setAutoTransform() allows to apply the rotation > from EXIF data. It was introduced in Qt 5.5, so bump the > required Qt version. > > > Diffs > ----- > > CMakeLists.txt be305274984321b93e05feeeb6d09490b33a43cc > thumbnail/CMakeLists.txt 92eb3c7ae98660eb00e33fbe608de1580ea75912 > thumbnail/jpegcreator.h 5cab30ff6a0881863ec66d739063f6dbfb4a48f7 > thumbnail/jpegcreator.cpp 9191fbacd21c65c9fc845fd7c77365005cd8df00 > > Diff: https://git.reviewboard.kde.org/r/129851/diff/ > > > Testing > ------- > > > Thanks, > > Alexander Volkov > >