[mythtv-users] Shield TV OpenSLES vs. AudioTrack?

[Tim Draper]

 ---- On Fri, 20 Dec 2019 19:25:51 +0000 Jim Abernathy <jfabernathy at gmail.com> wrote ----
 > My signal is OTA Mpeg2 so these settings didn't work for me. The audio 
 > broke up more and lipsync was a big issue and the video was more messed up.
 > 
 > Looks like I'm on OpenSLES for a while, which is not all bad.

i'm not in front of my shield so some if this info is 'iirc'. I'm also on the shield tv pro hardware.
being new to the Shield, i followed through the mythtv android guide. Also specific attention to the shield section for configuring codecs: https://www.mythtv.org/wiki/Android#Nvidia_Shield.
in the UK, i found SD content was the mpeg2video, thus used that profile. I don't think i had audio issues with SD content.
HD content was a different format so it fell back to the (blank) playback profile. 

i run shield > onkyo TX SR507 AVR > TV. 1080p is best my TV can do (and i assume AVR due to it's age). What i found was the AVR supported 5 of the 7 the shields audio codecs. however of the supposedly supported formats, one didn't actually work. My notes show the following when i was building mine.
audio working:
    DD
    dts
    true-hd
    dts-hd

    FAIL
    e-ac-3

and of course, it was the e-ac-3 (DD+) that the system wanted to default to. I unticked it in the FE's audio settings and i seem to be running in mostly DTS mode.
when the shield tried to play via e-ac-3/DD+ then the video was choppy, usually no audio but it sometimes did.