Dana 25. 3. 2015. 10:01 osoba "Christoph Gerstbauer" < [email protected]> napisala je: > > >> Hi Christoph, >> >> after a little search these are my findings >> >> ffmpeg throws a packing error at you" "Packing 2 is not implemented" >> According to the DPX v2 specs packing 2 is 8 bit values: >> >> The origin of your DPXs as stated in the header is a Scanity, which can >> do 8 bits scans. This might be the origin of the issue. >> http://www.dft-film.com/downloads/datasheets/Scanity-HDR.pdf >> >> 8 Bit data values are not supported in ffmpeg (and not very well supported >> in any program as far as I know): >> https://github.com/FFmpeg/FFmpeg/blob/master/libavcodec/dpx.c >> lines 141-144 >> >> Here's a bit more info about 8 bit image data issues in the DPX specs: >> http://www.simplesystems.org/users/bfriesen/dpx/dpx-issues.pdf >> >> I see a black and white image in Nuke which sort of confirms the storage >> of RGB channels in one value. >> >> The skew in the image is probably caused by a mismatch in image width >> and pixel aspect ration (which says it's 2048x2048) >> >> gr >> Arno > > > Hello Arno, now I got the information that these DPX files are in 10bit GRAYSCALE (which is not supported by ffmpeg or any other programm I know). > The usecase for that format is to scan a black and white filmrole with 10bit grayscale. > Do you know: Is it on the roadmap that ffmpeg will support this non-commong grayscale format?
Open bug report with samples that are not supported. > > Best Regards > Christoph > > > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
