[mythtv-users] What don't I get here? (Playback FPS)

[Steve Smith]

Viktor,

Do you mean that even using the VGA to SCART to get proper interlaced in
pseudo 50hz I'm going to have to double the frame rate AND use bob?!?!?!

That's a hellava hit on the CPU isn't it?

Cheers

Steve

On 15/06/07, Viktor Avramov <drvik at bigpond.net.au> wrote:
>
> I recommend using a VGA -> SCART cable... then you will have very precise
> control of what goes to the TV....  I had a problem like you using PAL
> 25FPS
> on a 50Hz interlaced TV... I wrote a patch which doubles the framerate for
> interlaced modes... I now use it wil BOB deinterlacing and the result is
> silky smooth!
>
> Here's the patch.... do with it what you will... I submitted it for
> inclusion
> in trunk but it was rejected because it's flawed in it's logic... all I
> can
> say is on my setup it's the only way of getting smooth, fluid motion....
> the
> devs told me to use the myth-vid branch instead!!
>
> Viktor
>
>
> Index: libs/libmythtv/videoout_xv.cpp
> ===================================================================
> --- libs/libmythtv/videoout_xv.cpp      (revision 12477)
> +++ libs/libmythtv/videoout_xv.cpp      (working copy)
> @@ -308,6 +308,9 @@
>      if (rate == 0)
>          rate = 60;
>
> +    if (mode_line.flags && 0x010) // #define V_INTERLACE 0x010
> +        rate = rate * 2;          // if modeline is interlaced then
> double
> the effective refresh rate
> +
>      if (rate < 20 || rate > 200)
>      {
>          VERBOSE(VB_PLAYBACK, LOC + QString("Unreasonable refresh rate
> %1Hz "
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