Notes on photo sphere/panoramic EXIF metadata

• Google's EXIF/XMP metadata tag specification for panoramic images
• Panorama images with sky are to have a negative value for the CroppedAreaTopPixels tag. (The panoramic viewer of Facebook ignores the value altogether, though, and assumes the horizon in the middle of the picture.)
• If a camera or software normally produces panoramic images with cylindrical projection, then doing a vertical capture actually produces a transverse cylindrical image. There is no standardized value for the EXIF ProjectionType field to cover this. (One option is to reproject them to equirectangular — which, again, is not very well supported.)
• Facebook's document on what tags to set
• The Facebook web interface insists that FullPanoHeightPixels be half the size of FullPanoWidthPixels. Else you get “no new photos were uploaded”.

/ Tags: Photo.

Building Wanpipe from source

Sangoma's wanpipe is one of the absolutely worst maintained tarballs ever released, worse than nvidia, fglrx and vmware-ws combined. ./Setup is one humongous unreadable shell script that is unusable for chrooted package builds, and naturally, Kbuild is eschewed bigtime although not completely, leaving no way to get src/lip compiled without lots of frustrating guessing on what the required command line would be. With Sangoma support showing no signs of accepting even the simple patches to fix DESTDIR support, outlook for cure is more than dim.

Originall posted at G+

Posted 2012-09-12 16:09 / Tags: Rant, Software. / link

Rant, Software.

Sangoma's wanpipe is one of the absolutely worst maintained tarballs ever released, worse than nvidia, fglrx and vmware-ws combined. ./Setup is one humongous unreadable shell script that is unusable for chrooted package builds, and naturally, Kbuild is eschewed bigtime although not completely, leaving no way to get src/lip compiled without lots of frustrating guessing on what the required command line would be. With Sangoma support showing no signs of accepting even the simple patches to fix DESTDIR support, outlook for cure is more than dim.