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OpenELEC Testbuilds for RaspberryPi (Kodi 15.0) Part 1
(2015-03-25, 13:24)nickr Wrote: Detailed a few posts back in the 323 release announcement.

Yep, thats what i did. But if i do so, the movie is played in PCM Sound. I tested 5.1 or 7.1 with DTS passthr off, but it doesnt help to get Master HD to Receiver.

Thx and Greetz,
J.
(2015-03-25, 09:42)slack3r Wrote: Some Omxplayer trouble with build #0323 and #0324 (Rpi1):
player hangs after skipping backward, then I get a black screen trying to stop it.

Build #0321 is fine.

Can you confirm if #322 is good/bad?
(2015-03-25, 10:06)da-anda Wrote: with #0323 I have serious issues when mmal renderer is used. As soon as there is any UI overlay playback is choppy with lots of drops. This doesn't happen with omxplayer.

Is #0323 the first build with this issue? Is #0322 okay?
(2015-03-25, 13:46)SSC_Jarod Wrote: Yep, thats what i did. But if i do so, the movie is played in PCM Sound. I tested 5.1 or 7.1 with DTS passthr off, but it doesnt help to get Master HD to Receiver.

That is correct behaviour. We are decoding DTS-HD and outputting as multichannel PCM. Your receiver will show PCM.
The difference now is you get the lossless stream with (up to) 8 channels, before you had the lossy stream with (up to) 6 channels.

The PCM data we output should be bit exact, so you should get identical audio compared with passing through DTS-HD.
(2015-03-25, 02:04)hdmkv Wrote: Thank you. So, I finally started testing with my Pi2 with build #0324, and...

- 23.976 is perfect, as is 59.940, 24, 60
- Haven't tested mpeg2 yet (OTA HD)
- Dolby TrueHD & ATMOS decode perfectly to 8 channel. Sounds as good as AVR doing it
- DTS-MA, same story, decodes fine
- MVC MKV's play great in full, frame-packed 3D (tested rip of 'Exodus: Gods and Kings' and 'Avatar')

Two screenshots to share (the dropped frames is likely due to SMB vs. NFS?):
- ATMOS test
- 3D MVC MKV test

Issues I'm seeing are stuttering (over wired SMB) with above & high bitrate test clips (Birds @ 90Mbps, & Jellyfish @ 100Mbps). I tried NFS, but it was worse. I have a Synology 1812+, and not sure how to use NFS properly. I believe I need to set Proto to UDP & rsize to 32768... but, don't know how to do this with my RPi2.

I would suggest maybe taking the files and placing them on a USB drive first and testing. This will at least narrow down whether its a network or playback issue. If it is a network issue then as suggested look at mounting the NFS share using the storage mount options at boot. I use the following NFS options and things seem great to me:

Options=udp,noatime,rsize=32768,wsize=32768,nolock,nfsvers=3

Now my question Smile I just want quick clarification on the DTS-MA/TrueHD decoding. I personally have a 5.1 setup, however it sounds like if I disable passthrough and set my speaker configuration at 7.1 I should get PCM for DTS-MA/TrueHD correct? This group is amazing and definitely is helping sales of the Pi2 Smile
(2015-03-25, 14:02)sarcoptic Wrote: Now my question Smile I just want quick clarification on the DTS-MA/TrueHD decoding. I personally have a 5.1 setup, however it sounds like if I disable passthrough and set my speaker configuration at 7.1 I should get PCM for DTS-MA/TrueHD correct? This group is amazing and definitely is helping sales of the Pi2 Smile

Yes. If you select 7.1 for number of channels then Kodi will not downmix the audio, and the receiver should downmix to 5.1 (as long as it has been set to 5.1 or can autodetect the speakers connected).
If you select 5.1 you will still get the lossless audio, but Kodi will downmix to 5.1.
If you have passthrough enabled then the receiver will decode the lossy DTS track.

Try all 3 options and see which you prefer.
I imagine to tell the difference between the lossy and lossless audio you will need good ears and a good sound system. There shouldn't be a lot of difference.
Obviously if you do have a 7.1 system then the difference will be more noticeable (a whole extra two channels of audio).
popcornmix,
Thank you for the explanation. Here is good sample for tests https://drive.google.com/file/d/0B9_XmyO...sp=sharing
Great explanation popcornmix! My Denon has Audyssey XT so I would rather give it the full 7.1 soundtrack and have my receiver downmix to 5.1 rather than Kodi. I would imagine most users who have mid to higher end receivers would also want to do the same thing.
(2015-03-25, 13:45)popcornmix Wrote: There are two deinterlace algorithms available:
advanced - works like yadif2 but can only handle up to DVD resolution
bob (fast) - simpler but works at 1080i.

Would it be possible to output (auto switch to) the original source resolution like is done for framerate, so that something external could do the deinterlacing?
If one only has access to a 2.0 amplifier and speaker setup, is there any way to get access to these high quality lossless audio streams?
I think others (slack3r at least) have noticed some issues skipping around. After updating to 0324 last night I noticed that that while watching recorded TV (mythtv plugin, MPEG2 video) when I skip forward a few minutes to skip a commercial and then skip back in increments of 10 seconds, sometimes the video would just freeze and the audio would keep going. If I stopped playback and then let it start where it left off, it was fine. That happened 2 or 3 times last night. OMXPlayer is disabled and only DVDPlayer is being used.
(2015-03-25, 13:48)popcornmix Wrote: Can you confirm if #322 is good/bad?
Is bad:
http://sprunge.us/jePQ

Thanks.
zaphod24,

I've been busy for a few days and haven't had a chance to test the later releases. Any luck with LiveTV using DVDPlayer? Does it still stutter?
Experience: It's what you get when you were expecting something else.
(2015-03-25, 16:38)afremont Wrote: zaphod24,

I've been busy for a few days and haven't had a chance to test the later releases. Any luck with LiveTV using DVDPlayer? Does it still stutter?

If I turn off deinterlacing for the SD channels like MeTV it works fine. Looks terrible but it doesn't stutter. Hoping that can be looked at, I may try and upload a smallish video sample to google drive if I can get it to have the same issue for a recording as live tv.

I've also seen periodic flickering like MONSTA mentioned, even on HD channels like Comedy Central and CNN. Every now and then something that is a straight horizontal line will flicker a bit. I'm wondering if that is the result of something like telecine and converting video shot in 24fps to 29.97fps (even though it says 25fps when watching live TV as noted before).
Here is a small sample from MeTV:

https://drive.google.com/file/d/0B8TU_Cp...sp=sharing

It shows 25fps while watching live TV with DVDPlayer and stutters. Playing back with DVDPlayer as a recording, it shows 29.97fps and does not stutter. It plays fine as live TV and recorded TV with OMXPlayer enabled.

I have a video from Nickelodeon that was crashing OMXplayer but seems ok in the latest build. Playing with MPlayer, this shows up on the console:

demux_mpg: 24000/1001fps progressive NTSC content detected, switching framerate.
A:42366.1 V:42366.2 A-V: -0.155 ct: -0.305 80/ 77 17% 0% 0.4% 0 0

demux_mpg: 30000/1001fps NTSC content detected, switching framerate.
A:42366.1 V:42366.2 A-V: -0.140 ct: -0.309 81/ 78 17% 0% 0.4% 0 0
Warning! FPS changed 23.976 -> 29.970 (-5.994005) [4]
A:42367.0 V:42367.1 A-V: -0.051 ct: -0.390 107/102 17% 0% 0.4% 0 0

demux_mpg: 24000/1001fps progressive NTSC content detected, switching framerate.
A:42544.4 V:42544.3 A-V: 0.118 ct: -0.001 137/131 ??% ??% ??,?% 0 0

demux_mpg: 30000/1001fps NTSC content detected, switching framerate.
A:42544.4 V:42544.3 A-V: 0.123 ct: 0.003 138/132 ??% ??% ??,?% 0 0
Warning! FPS changed 23.976 -> 29.970 (-5.994005) [4]
A:42560.3 V:42560.3 A-V: -0.001 ct: 0.164 1309/1303 19% 0% 0.3% 0 0

According to http://www.mplayerhq.hu/DOCS/HTML/en/men...ecine.html:

"7.2.2.4. Mixed progressive and telecine

All of a "mixed progressive and telecine" video was originally 24000/1001 frames per second, but some parts of it ended up being telecined.

When MPlayer plays this category, it will (often repeatedly) switch back and forth between "30000/1001 fps NTSC" and "24000/1001 fps progressive NTSC". Watch the bottom of MPlayer's output to see these messages.

You should check the "30000/1001 fps NTSC" sections to make sure they are actually telecine, and not just interlaced. "

So it would seem that there is some progressive and some interlaced content? This tends to happen the most during the transition to and from commercials. I wonder if that is also what is causing the flickers sometimes when deinterlacing.
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OpenELEC Testbuilds for RaspberryPi (Kodi 15.0) Part 112