Patent ID: 7362804

Claim:
An apparatus comprising: a first circuit configured to generate a decoded video signal and syntax elements in response to an encoded bitstream; and a second circuit configured to generate one or more overlay images in response to said syntax elements, wherein (a) said one or more overlay images are displayed overlaying a corresponding decoded video image, (b) said one or more overlay images comprise one or more graphic symbols representing said syntax elements of said encoded bitstream and (c) said one or more overlay images comprise at least one image selected from the group consisting of (i) an image displaying statistics about said decoded video signal including resolution, frame rate, bit rate, a bit rate graph, bitstream errors, peak signal to noise ratio (PSNR), average PSNR and a PSNR graph, wherein one or more scales of said bit rate graph and said PSNR graph are dynamically adjusted to display minimum and maximum values, (ii) an image displaying a grid representing a number of macroblocks of said decoded video image, wherein for each macroblock a graphic symbol representing partitioning and encoding information for the respective macroblock is shown, (iii) an image displaying a grid representing a number of macroblocks of said decoded video image, wherein for each macroblock a graphic symbol representing a macroblock size parameter for the respective macroblock and a number representing a quantization parameter for the respective macroblock are shown, and (iv) an image displaying a grid representing a number of macroblocks of said decoded video image, wherein for each macroblock a graphic symbol representing a macroblock level adaptive frame/field (MBAFF) coding mode of the respective macroblock is shown.