Quote:
Originally Posted by DragonQ
Nothing is treated as 288p, I don't know what you're talking about here. Do you have evidence for this claim? The fact that I only found one or two models where this problem is actually mentioned seems to suggest it's against the norm.
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If you try and perform any kind of complex deinterlacing to get a 576p50 signal, from a 576i video source, you will have deinterlacing artifacts.
576i neatly becomes 288p50, and while you lose half the resolution with film-type (progressive) content, most people think it looks
fine.
If you allow for switching between video and film-type deinterlacing, it will invariably make the wrong guess at some point, switch to the wrong mode, and the result is a disaster that stutters, is full of combing artifacts or aliasing, or jumps between a high and low resolution image noticeably.
It's far easier to treat all interlaced content (at least 576i, perhaps not 1080i) as 288p and you never have any artefacts, other than a softer, lower resolution image. One with hard aliasing like the example I posted above is less common.
Quote:
Originally Posted by DragonQ
Yes, leaving "film mode" on makes interlaced content look horrible - far worse than deinterlacing progressive material would look if the deinterlacer is working correctly. Again, I haven't encountered this (on my HTPC or on the few HDTVs I've used), yet you seem to be suggesting it's extremely common. Even madshi said your sample was a rare case.
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But enabling the "film mode" option on a television doesn't say "treat this input as progressive content" all it does is enable the display to attempt 2:2 cadence detection - of which I have never seen a television do a good job, if it even has the option. Even if they do a good job of displaying films without artifacts, they tend to incorrectly identify video content as film-type and switch to the wrong mode, with very bad results, so you can't leave the option enabled all the time - and most people don't want to be jumping into the menus to toggle it on/off all the time, so it gets left off.