Tuesday, February 09, 2016

[ywkophfl] Genealogy of lossy compression

Given two lossy compressed media files, determine if one was encoded directly from the other.

Determine if one is a descendent (possibly multiple generations of transcoding) of the other.

Determine which is closer in quality to the unknown original.

Modify media formats, probably add container metadata, to make it easier to track this kind of information, assuming cooperation of the transcoders.

No comments :