libmng -THE reference library for reading, displaying, writing and examining Multiple-Image Network Graphics. MNG is the animation extension to the popular PNG image-format.
PNG (Portable Network Graphics image format) and MNG (Multiple-image Network Graphics image and animation format) home sites
A simple C library for SMPTE-336M KLV file I/O.
Renderer for subtitle format SSB.
SSBRenderer is a plugin for frameservers on Windows & Unix platforms to render 2D graphics by SSB (Substation Beta) data on frames of video streams.