Avid DNxHD

For use in Avid non-linear editing and based on the MXF open-format standard which means that the data can be interchanged with other systems that support MXF. Codec is available for Mac and Windows platforms, and can even be "wrapped" in QuickTime for QuickTime applications like After Effects. Provides excellent HD quality at a fraction of uncompressed HD video, even after multiple generation re-encoding. Supports several streams of real time effects, multicamera editing and collaborative sharing across Avid Unity network systems. Support for full, square pixel HD frame sizes (1920x1080 and 1280x720), 4:2:2 color sampling, and 8-bit or 10-bit depth. Supports different bit rates, 145 Mbit/sec and 220 Mbit/sec for different quality levels. Scalable so that future refinement of data rates and resolutions is possible. Developed prior to Apple's ProRes 422 which also uses the same target bit rates. Both Apple's ProRes 422 and Avid's DNxHD are mastering quality formats, and have similar PSNR (peak signal to noise ratio) values, which is a measure of the fidelity of the encoded video.