Free decompressor software for mac

libavcodec based QuickTime Media Decompressor component. Support avc1, MPEG-4 AVC/H.264 Video Media.

This compoent overrides default Apple H.264 decoder compoent. Support some H.264 Main/Hi-Profile features. Source codes are included, and free software under GPL V2. Uses libavcodec.a and others from ffmpeg SVN-7752.

MNG Component is a suite of QuickTime components (image compressor/decompressor, graphics importer, movie importer, and movie exporter) for making the MNG format accessible through QuickTime.
MNG files are not particularly widespread, so the main goal is not to support MNG files per se. Rather the intention is to use MNG as a superior compression algorithm for sequences of computer-generated images such as screen captures.
MNG allows for much greater compression than the Animation and Graphics codecs which have been standard parts of QuickTime for the past decade.
Main features:
- The ImageCodec allows QuickTime to create movie files which uses the MNG codec for encoding video data. These MNG tracks can be played back and edited just like any other QuickTime video track.
- The MovieImporter allows QuickTime-savvy applications to import MNG documents in place.
- The GraphicsImporter allows QuickTime-savvy applications to import MNG files as still images.
- The MovieExporter allows the video track of any QuickTime movies to be exported as a MNG document.

USBVision Exporter allows you to convert any QuickTime movie from one format to another. This is particularly useful for converting movies to iMovies native DV Stream format and to iTunes and the video iPods native H.264 and MPEG-4 format.

USBVision Exporter is also useful for converting proprietary formats that will only play on machines with proprietary decompressors installed, to standard formats that will play on any machine.

USBVision Exporter will also allow the correction of aspect ratios in movies that were saved incorrectly.