Quote:
Originally Posted by blu2
From the perspective of these SoC solutions aimed at mass market low cost players, I assume they do everything required to accurately decompress the codec, handle color space requirements, de-interlace, scale, apply pulldown as needed, etc. e.g. all the processing required to get the data off the disc and get it out over HDMI. All of this is implemented in various algorithms in the player in the digital domain?
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Yes, all those things are implemented in the digital domain.
Quote:
From the perspective of video quality of the player, should we expect to see (in theory) that a mass market low cost Blu Ray player should have the same video quality as a more expensive higher end player?
I would assume so, since it seems like this is basically a process of getting data of the disc, applying various well defined algorithms, and sending the data out over HDMI (but maybe I am missing something).
The only room for improvement of the video quality would seem to areas like color upconversion for example, which really go beyond what's on the disc and into a similar realm of DVD upconversion?
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The outputs of the
video decoder blocks on the SoCs are bit-accurate for H.264 and VC-1, meaning the decoded video quality at that point is exactly the same for all players.
So, the differences in players is in the post-processing of the video, such as scaling, deinterlacing, edge enhancement, noise reduction, color correction, etc. This is where the "art" comes in.
Some player manufacturers (and consumers) may also tweak various settings (such as brightness, contrast, hue, saturation, sharpness, edge enhancement, 2D/3D noise reduction, gamma, color conversion, etc.) to achieve the specific "look" to the video that they want. The most accurate picture, although possibly not the most personally visually pleasing picture, is when all those type of controls are bypassed or zero'd out.