Packages with the postproc use flag

media-libs / libvpx : WebM VP8 and VP9 Codec SDK

  • Enable additional post processing filters

media-video / ffmpeg : Complete solution to record, convert and stream audio and video. Includes libavcodec

  • Build and install libpostproc.

media-video / transcode : A suite of utilities for transcoding video and audio codecs in different containers

  • Build with ffmpeg libpostproc support

media-video / vlc : Media player and framework with support for most multimedia files and streaming

  • Enable image post-processing via libpostproc (part of FFmpeg)