Difference between revisions of "Deinterlacing"

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{{Note box|If using a Nvidia TV output (composite/svideo) & watching PAL/NTSC signals there should be no need to deinterlace video because the TV output's flicker filter's default setting (of 127) makes interlaced material look perfectly natural - exhibited on FX5200 svideo output - YMMV.}}
 
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If using a Nvidia TV output (composite/svideo) & watching PAL/NTSC signals there should be no need to deinterlace video because the TV output's flicker filter's default setting (of 127) makes interlaced material look perfectly natural - exhibited on FX5200 svideo output - YMMV.
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[[Category:Glossary]]
 
[[Category:Glossary]]

Revision as of 22:20, 27 November 2008

Time.png Outdated: The information on this page may no longer be relevant to the current release of MythTV, 0.27.4. Please consider helping to update it.

MythTV Deinterlacing

Deinterlacing is the process of converting traditional Interlaced Video into a Progressive Picture that can be displayed on modern non interlaced display devices such as LCD or Plasma screens.

There is a lot of general information on deinterlacing at Wikipedia in these two articles:

MythTV has several options for Deinterlacing. The configuration options for deinterlacing can be found under Mythfrontend->Utilities Setup->Setup->TV Settings->Playback. On Playback Profiles (3/9) edit each entry, The Primary and Fallback deinterlacer may be set on the 2nd sub-page.

GeneralPlayback.jpg

  • Linear Blend
  • Kernel (Less Motion Blur)
This requires SSE support compiled into your Kernel
  • Bob 2X Framerate
This requires Xv or XvMC video acceleration
This is also called Line Doubling and more information can be seen here (under line doubling):http://en.wikipedia.org/wiki/Deinterlacing#Deinterlacing_methods
  • One Field
  • yadif, something apparently Michael Niedermayer wrote for mplayer/ffmpeg that's fast but more CPU intensive than above
  • Greedyh


Important.png Note: If using a Nvidia TV output (composite/svideo) & watching PAL/NTSC signals there should be no need to deinterlace video because the TV output's flicker filter's default setting (of 127) makes interlaced material look perfectly natural - exhibited on FX5200 svideo output - YMMV.