[mythtv-users] Raspberry Pi Mythfrontend 1080i Poor Playback with Recent Raspbian OS Image

[Curtis Gedak]

I am investigating the state of mythfrontend running on Raspberry Pi
using MythTV 0.28.1 as the backend.

My video playback is unsatisfactory when using a recent Raspbian OS
image (2017-03-02).  More specifically I see jaggy lines when playing
interlaced content such as North American ATSC 1080i recorded
television.  The issue appears to be poor handling of interlaced
content.

Video playback with an older Raspbian OS image (2016-02-09) is
excellent.

All tests used applicable RPi MPEG2 licenses.


QUESTION:

Has anyone else experienced this issue with recent Raspbian OS
playback?

Are there suggestions to address the issue?

In the meantime I continue to use and recommend the older Raspbian OS
2016-02-09.


BACKGROUND INFORMATION:

In an effort to troubleshoot this issue, I have tested with:

  - Raspberry Pi 2 and 3
  - MythTV 0.27 and 0.28
  - Raspbian OS 2016-02-09 and 2017-03-02

The results are consistent per the Raspbian OS image.

Raspbian Image   1080i Playback Results
--------------   -------------------------------------------------------
    2016-02-09   Excellent quality with no jaggy edges
    2017-03-02   Poor playback with jaggy edges when horizontal movement

It appears that my configuration of the newer Raspbian OS image does
not work well with interlaced content.


BACKGROUND INSTALLATION INFORMATION:

MYTHTV 0.28

On x86_64 mythbuntu 16.04 backend:
  mythtv-backend 0.28.1+fixes.20170309.8f13742-0ubuntu0mythbuntu3

On RPi Raspbian full frontend:
  mythtv-light   0.28.1-6-g7de03a9-0 [1]

[1] https://www.mythtv.org/wiki/MythTV_Light


MYTHTV 0.27

On x86_64 mythbuntu 14.04 backend:
  mythtv-backend    0.27.4+fixes.20141018.b305eb5-0ubuntu0mythbuntu2

On RPi Raspbian full frontend:
  raspi-fixes-0.27  0.27.6-69-g41a2a8d [2]

[2]
http://gedakc.users.sourceforge.net/display-doc.php?name=pvr-rpi-mythtv-frontend

Regards,
Curtis Gedak