[HLS] Dropping frames constantly / freezing / low speed on seek

[Guro]

Hello, we have implemented exo-player in our project and we are using HLS for VOD delivering,
but it drops frames frequently, also seeking is much slower than in androids native media player.

tried tweaking parameters for MediaCodecVideoTrackRenderer (allowedJoiningTimeMs, maxDroppedFrameCountToNotify) but didn't get any results.

can anyone suggest anything?

[ojw28]

What do frequently and much slower mean in absolute terms? Are you using the dev or dev-hls branch with TYPE_HLS? On what device(s) do you see these issues?

[Guro]

I'm using dev-hls branch and yes I'm using it with TYPE_HLS, device is Rockchip's set top box (RK3188) with android 4.4.2 on it.

here is the log of last 2 minutes of playing hls video:
02-03 04:21:59.834 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:01.144 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:03.584 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 3
02-03 04:22:06.204 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:08.774 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:09.044 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:09.324 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:09.764 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:09.814 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:10.574 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:11.024 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:11.054 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:11.614 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:11.644 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:12.024 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:12.674 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:12.764 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 4
02-03 04:22:37.114 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:37.514 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:37.884 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:38.134 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:38.644 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:39.144 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:39.174 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:39.764 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:40.144 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:40.574 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:40.934 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:41.174 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:41.644 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:41.904 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:42.304 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:42.604 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:44.524 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:44.724 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:45.094 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:45.344 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:45.564 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:45.944 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:46.174 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:46.454 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:46.834 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:47.224 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:47.464 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:48.004 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:48.234 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:48.634 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5
02-03 04:22:49.094 9455-9455/pkgname.debug D/PlayerActivity﹕ Dropped frames: 5

Dropped frames occur often after seeking.

Thanks

[Guro]

Increasing minBufferMs/minRebufferMs to 10000
Also Decresing maxDroppedFrameCountToNotify to 15 helped a little

[Guro]

I think thats a problem #278

[ojw28]

Changing maxDroppedFrameCountToNotify does nothing except changing the rate that dropped frames are reported. It wont have made any difference to the actual user visible experience.

Probably the same as #278, so let's use that issue for tracking