Patent ID: 9215471
Filing Date: 2015-12-15
Classification: G06F,H04N

Abstract:
1. A method, comprising: inputting a conforming bitstream of encoded digital media data, the conforming bitstream being arranged into a syntax that conforms to a video compression standard, the conforming bitstream further comprising parameters that conform to the video compression standard; selectively altering one or more of the parameters in the bitstream into parameters that do not conform to the video compression standard, the selective altering being performed such that parameters that would render the bitstream non-decodable if altered are bypassed and left unaltered, thereby creating a non-conforming bitstream that is decodable; and storing a non-conforming bitstream of encoded digital media data as a non-conforming test bitstream configured to test a decoder for non-conformant playback capability, the non-conforming bitstream including the one or more selectively altered parameters, wherein the method further comprises receiving user input indicative of the parameters that are to be selectively altered, and wherein the parameters that are to be selectively altered are one or more of: parameters in a sequence-level header, parameters in a picture-level header, parameters in a slice-level header, parameters in a macroblock-level header, or parameters in a block-level header.