LiveTV: walking on LiveTV history is broken

[warpme@…]

Most likely after ​https://github.com/MythTV/mythtv/commit/cc927f687995a9620de581894a68935b0780b299 walking LiveTV history seems to be broken. Issue manifest when user skips back and target is within last 10s of previous LiveTV segment. In such case LiveTV jumps to beginning of current segment.

Steeps to reproduce:

-set skip duration to 10sec.

-Start livetv channel

-Watch for 1..2min

-Switch to other channel

-Watch 13–18sec

-Skip back to livetv history back.
-If skip enters previous segment within it's last 10s or so, playback jumps to beginning of current segment.

[warpme@…]

Just some feedback with current master (554bcd6): reverting cc927f6 fixes LiveTV history walking issue but side effect without this commit is that on some HD channels LiveTV playback is with 15–17fps. Pressing for short pause makes playback OK. BE/FE logs attached. Record file sample is on ​http://warped.homenet.org/ticket12226.mpg

BTW: few weeks ago I done some experiments for trying to fix LiveTV. When I reverted also 195eb07 then 15-17fps problem is fixed....but channel changes is broken. Reverting additionally bfc6b9e makes all OK...but all speedups/smoothness by Lawrence patches in LiveTV gone :-(

[warpme@…]

Logs for 17fps problem

[warpme@…]

17fps logs

[JYA]

the only reason it's smooth is because it just doesn't work, remove all wait and checks.

waits and checks that were there for a reason

[JYA]

fixed with reversal of: f8d72280ccb3ec28391182cf6eaaf20c9c87ae4f 195eb07fb106fbabf164a1989860adcc132ab9d2 bfc6b9ed58029955d5a4230cad5851ed4848ed20