Poor video quality for h.264 IPTV stream from with hardware acceleration

Help and Support Raspberry Pi
1

Hi everyone,

I am using OSMC to watch IPTV streams (German IPTV provider “Entertain”) with a TVHeadend instance (separate RPi). The streams are H.264 format. I’m using TVHeadend 3.4.27 and OSMC November Update 11.2. This worked well until end of November.

Since a few days, IPTV streams are being rendered with very poor quality - lots of artifacts After some investigation I tried turning hardware acceleration completely off (no MMAL and no OMXPlayer); after that quality was OK. But HD streams then become laggy and therefore unsuable. Playback of a recorded stream shows the same symptoms - changing the container from TS to MKV also does not help. Only chance I found so far was to convert the video stream; which does not help for the Live TV stream.

Here’s “mediainfo” output for a recorded stream with the described issues.
http://paste.osmc.io/eloqaxuguq.vhdl

Has anybody similar experiences …? Anything I can do from OSMC/KODI/RPi side …?

Thanks and best regards

2

Does the corruption look like this:

(there is a link to a file which plays corrupt).
If so we are aware of the issue and it’s being investigated.

3

Hi,

looks exactly like my IPTV streams. Also, the symptom descriptions on Github match my situation.

Do you need anything from me …? I also have a recording (~44M) which I could upload somewhere, if needed.

Thanks

4

If you upload the video (e.g.to dropbox or google drive) and post a link on the github issue, then it will be tested with any fix being developed, so improves the chance that you will be happy with the fix.

5

Just posted two links on GitHub. Thanks.

6

Hi,

The issue on Github has been fixed and closed. I manually changed the firmware files and everything is well.
Now I am wondering which OSMC update will pick up that fix - could somebody shed some light into this?

Thanks

7

We normally include a Raspberry Pi firmware update in the monthly updates - whatever is the most current version at the time of the update, so it should get updated in approximately a weeks time.

cc @sam_nazarko

8

Are you referring to this issue?

Sam

9

Yes, exactly.

-Carsten

10

Okay – thanks for letting us know. I’ll update the firmware for the January update.

Sam