Apr 27, 2020, 05:27 by neil.birkb...@gmail.com: > The clean aperature represents a cropping of the stored image data used to > relate the image data to a canonical video system and exists as container > metadata (see 'clap' section in > https://developer.apple.com/library/archive/documentation/QuickTime/QTFF/QTFFChap3/qtff3.html) > > Addition of the side data is a first step towards demuxing CLAP atom metadata, > helping to resolve https://trac.ffmpeg.org/ticket/7437 > > This CleanAperture representation can also carry PixelCrop fields from MKV. > Side data was suggested as a way to carry such PixelCrop fields in: > https://ffmpeg.org/pipermail/ffmpeg-devel/2016-March/192302.html > > Transmuxing the side data can then be added (MOV to/from MKV), and > auto-application could optionally be enabled like autorotate in > ffmpeg_filter.c. >
We already have frame cropping metadata in the AVFrame structure. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
