Kodi Community Forum

When I watch HD video on KODI, get choppy/jerky playback (very obvious on camera pans or scrolling credits); as far as I can see, SD material plays back fine. My HD videos are all h264 encoded in either an MKV or MP4 container, all are 50Hz

When watching the videos, the TV reports that it has adjusted to 50 Hz

When I press the O button, I get the following lines (typically)
...
P(fr:50.000 vq:99%, dc:ff-h264-vdpau, Mb/s:2.30, drop:0, skip 550 [goes up about 1 per second], pc:1)
...
W(fps:44.91[varies 42-49] CPU0:15% CPU1:11%)

My settings are as follows:

Adjust display rate to match video: On start / stop
Pause during refresh rate change: 0.1 sec
Sync playback to display: Yes
A/V sync method: Video clock Resample audio

My system uses an AMD A6-5770K APU with 4 GB of single channel memory (I have read other posts that say that this is adequate -- if not please let me know)
I have the VDAPU acceleration installed (and it appears to be working -- CPU usage is typically around 20% when playing back, with acceleration turned off it is typically 70 - 90%)

I am running on Linux Mint 17.1 (AMD 64 bit version), with the Radeon open source driver (updated till 01/01/2015)
I am running KODI 14.0 (PPA install) (GIT: ad747d9)

I have pasted a debug log, please see http://pastebin.com/rzds10wZ


All help / suggestions very gratefully received.

Deleted post

Yes (and SD 50Hz video appears to work fine)

(2015-01-03, 14:27)41nick Wrote: [ -> ]Yes (and SD 50Hz video appears to work fine)

Sorry - hadn't read your post carefully enough and saw reference to 50Hz being displayed on display, so tried to delete my post, but can't. Apologies.

Does:

help?

No worries.

Just to add, I've tried reverting to Gotham 13.2, and get the same results.

I've just been playing around with different recordings, and it only appears to apply to 50Hz recordings -- stuff recorded at 25 Hz seems fine.

Starting to suspect that the A6 isn't man enough for 50 frames/second HD

Fritsch -- thanks for the advice -- just tried the new kernel but the problem remains

Press the film role and set: Deinterlacing: Auto Deinterlacing Method: BOB
Scaling: Bilinear: Save for all movies.

Any difference?

And post a new Debug Log please with this 3.16 kernel.

Here's a new debug log: http://pastebin.com/DM8XxS7h

No change to the behaviour -- (note that I chose interlace as BOB, not BOB-VPADU)

For interest, I've also been trying to set up surround sound, which I also couldnt get to work (this may become another thread).

However, to try to solve this, I downloaded Kodibuntu, and booted in test mode. This solved both the surround sound and the choppy video problem.

So in summary this would appear to be mint problem rather than a kodi problem

Try with a recording, I see a lot of tvheadend spam in there.

Concerning your surround audio: http://kodi.wiki/view/PulseAudio

Thanks for the audio link -- I couldn't get that to work (but I don't want to hijack my own thread)

My only HD source is tvheadend (basically I use the system to watch DVDs and as a PVR).

When you said, "watch a recording", what I was watching was a recording made with tvheadend (rather than live TV).

Are you asking me to watch a recording from say a bluray (I will have to go and buy a drive) -- or simply play the same recording with the tvh plugin disabled?

Does this work: http://solidrun.maltegrosse.de/~fritsch/..._mbaff.mp4 or this: http://solidrun.maltegrosse.de/~fritsch/1080i50_h264.ts

I'd also like to see a dmesg | pastebinit please

dmesg > http://pastebin.com/Lq73vk7E

Still downloading the videos