[mythtv] mediacodec status

[Peter Bennett]

The fact that mediacodec returns multiple frames for one packet is 
causing problems in many areas. I think I have most of that solved now.

MythTV playback with mediacodec is having some timing issues with 
interlaced content. The content is interlaced 29.97 fps. Mediacodec is 
returning 59.96 deinterlaced frames per second. We are playing it OK but 
the elapsed playback time increments at double speed because it assumes 
there are 29.97 frames per second. You can see this in the seconds 
displayed by the osd status during playback.

There are many calculations done in MythTV that use the frame count and 
assume that it matches the frames per second returned by the stream 
context. I still need to figure out a solution to this. Hopefully I can 
get the correct framerate from the Codec Context and use that instead of 
the value from the Stream.

Rewind and FF are still to be tackled.

Peter