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MediaPortal 1
MediaPortal 1 Talk
Automatic Refreshrate Changer
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<blockquote data-quote="red5goahead" data-source="post: 1080185" data-attributes="member: 60852"><p>Let me explain better, I'm Italian so I apoligize If I can not explain how I would.</p><p></p><p>With material that have 29.97 fps and it's progressive no doubt, 59,97 (59) it's the best option.</p><p></p><p>With material that have 29.97 fps but interlaced there are two cases.</p><p></p><p>- a material filmed directly in ntsc, tv , sport and so on, not telecined. in this case 59,97 (59) as refresh is still the only option to use.</p><p></p><p>- a material , interlaced, but telecined. The pulldown detection of Amd/Ati video card, for example, can remove the telecine process and restore the original frame rate. so, in this case, the best option is, imho, to use 23,976 (24p) frame rate.</p><p></p><p>I tried to play a 1080i, m2ts, 29,97, interlaced, de-interlacing it with a refresh rate of 59,97 HZ. No problem at all except for the typical 2:3 pulldown judder.</p><p>Tried with 23,976 HZ refresh rate , the pulldown detection remove the frames and restore the 24p. (inverse telecine, ivtc). It work fine, and smooth.</p><p></p><p>1) 29,97 fps interlaced with 23,976 refresh rate (with inverse telecine)</p><p><img src="http://i.imgur.com/9wVUZTC.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>2) 29,97 fps interlaced with 59,94 refresh rate (without inverse telecine)</p><p></p><p><img src="http://i.imgur.com/vnyXXYp.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Obviously the choice should be automatic, by mediainfo and MP according a new option to switch a different refresh rate (Cinema) when interlaced telecined material is detected.</p></blockquote><p></p>
[QUOTE="red5goahead, post: 1080185, member: 60852"] Let me explain better, I'm Italian so I apoligize If I can not explain how I would. With material that have 29.97 fps and it's progressive no doubt, 59,97 (59) it's the best option. With material that have 29.97 fps but interlaced there are two cases. - a material filmed directly in ntsc, tv , sport and so on, not telecined. in this case 59,97 (59) as refresh is still the only option to use. - a material , interlaced, but telecined. The pulldown detection of Amd/Ati video card, for example, can remove the telecine process and restore the original frame rate. so, in this case, the best option is, imho, to use 23,976 (24p) frame rate. I tried to play a 1080i, m2ts, 29,97, interlaced, de-interlacing it with a refresh rate of 59,97 HZ. No problem at all except for the typical 2:3 pulldown judder. Tried with 23,976 HZ refresh rate , the pulldown detection remove the frames and restore the 24p. (inverse telecine, ivtc). It work fine, and smooth. 1) 29,97 fps interlaced with 23,976 refresh rate (with inverse telecine) [IMG]http://i.imgur.com/9wVUZTC.png[/IMG] 2) 29,97 fps interlaced with 59,94 refresh rate (without inverse telecine) [IMG]http://i.imgur.com/vnyXXYp.png[/IMG] Obviously the choice should be automatic, by mediainfo and MP according a new option to switch a different refresh rate (Cinema) when interlaced telecined material is detected. [/QUOTE]
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