Updated MythTV with the VDPAU modifications committed in trunk up to version #19990.

VDPAU fixes: Don't check for baseline h264 support in VDPAU and assume any baseline profile stream is main.

This package includes my latest patch:

http://svn.mythtv.com/trac/ticket/5643#comment:5

It also gives a mechanism to properly handle Nvidia's xrandr unique refresh rate.

Nvidia drivers by default with DynamicTwinView will generate a unique refresh rate for all the various resolutions and screen.

So the refresh rate returned by the xrandr API doesn't match the effective refresh rate..

For example, on my system xrandr would return:

   1920x1080      50.0*    51.0     52.0     53.0     54.0     55.0

56.0     57.0     58.0     59.0     60.0     61.0     62.0     63.0

64.0     65.0     66.0

   1680x1050      67.0     68.0

   1440x900       69.0

   1400x1050      70.0     71.0

   1360x768       72.0     73.0

   1280x1024      74.0     75.0     76.0

Note that all refresh rates start at 50 and keeps increasing by one.

where 1920x1080 50Hz would be 50Hz

1920x1080 51Hz would be 60Hz

1920x1080 52Hz would be 24Hz etc...

As such, mythtv configuration UI in setting custom TV playback video mode will report values that are pretty much useless.

It also prevents MythTV to correctly determining which refresh rate should be used say if the video is encoded at 24fps when the xrandr effective rate to be used is say 52.

Another issues is that MythTV interface to control the refresh rates are using short.

In the US, 24p is really 23.976Hz ; while in PAL countries it would be exactly 24Hz.

Most 24p TV would handle both framerates ; however as this refresh rate is so close to 24 .. X11 will only allow you to use on or the other. Not both at the same time.

This patch also adds support for using non integer framerates; like 23.976Hz or 59.94Hz.

Call me anal, but there is a difference with all those rates ; and so far MythTV couldn't use them.

As the rate used by mythtv and XRANDR are integers ; those rates weren't supported before.

In MythTV setup -> Appearance, check Separate Video modes for GUI and TV playback.

If for the rate you use "Any" this is when MythTV will try to match the TV refresh rate with the video one.

A new field has been added at the bottom of this configuration screen:

Custom screen rate definition file.

Here you enter the path to a text file containing the description of the video rate.

The format of the file is as follow:

width,height,real_rate,xrandr_rate

like this:

#50 - "1920x1080@50"

#51 - "1920x1080@60"

#52 - "1920x1080@24"

#53 - "1920x1080@23.976"

#54 - "1920x1080@50i"

#55 - "1920x1080@60i"

#56 - "1920x1080@59.94"

#57 - "1920x1080@59.94i"

#1920x1080 mode:

1920,1080,50,50

1920,1080,60,51

1920,1080,24,52

1920,1080,23.976,53

1920,1080,59.94,56

Any lines not following the format width,height,real_rate,xrandr_rate will be ignored

In the example above, this will tell mythtv that to use a 60Hz refresh rate, the 51 xrandr rate should be used.

Note that it handles floating point rates like 1920x1080 @ 23.976Hz.

If a given resolution is defined in this definition file, it will replace the rates automatically calculated by X11.

MythTV setup screen will also use and display the real rate (24, 50, 60 etc..) rather than the rate returned by xrandr (50,51,52 etc)...

I'm sure there should be a way to determine what the real refresh rate is  from the xrandr ; but I haven't found how yet.