Posts by noggin

Quote from Anard

Thanks. I tried to edit the config.txt file but it can't in ssh as if I wasn't root. The only way is to remove the SD card and edit... Is it normal ?

It's not a problem if it wouldn't work for composite but I like to understand...

Finally, sure I'll use a HDMI to Scart or composite converter, video quality will be much better, but waiting for the converter, I'll continue to use it with my jack connection.

Code

LibreELEC:~ # cd /flash/
LibreELEC:/flash # ls -l | grep config
-rwxr-xr-x    1 root     root          3261 Jan 10 17:43 config.txt
-rwxr-xr-x    1 root     root           979 Apr 13  2018 distroconfig.txt
-rwxr-xr-x    1 root     root           321 Jan  1  1980 os_config.json
LibreELEC:/flash # nano config.txt
GNU nano 2.5.3              File: config.txt


################################################################################
#      This file is part of LibreELEC - http://www.libreelec.tv
#      Copyright (C) 2016 Team LibreELEC
#
#  LibreELEC is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation, either version 2 of the License, or
#  (at your option) any later version.
#
#  LibreELEC is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or xFITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with LibreELEC.  If not, see <http://www.gnu.org/licenses/>.
################################################################################
# Bootloader configuration - config.txt
################################################################################
[ Read 76 lines (Warning: No write permission) ]

Display More

You probably need to mount /flash as RW. I think it's RO by default in LibreElec - like most of the LE filesystem?

Details here in the wiki : Raspberry Pi Config.txt [LibreELEC.wiki]

Quote from Anard

Hi.

I've installed LibreElec on a RasPi3B+ to use it as media center.

My screen is a big plasma TV with 1024x768 resolution, but without HDMI inputs. So I use composite input with the Raspberry's mini-jack output.

First problem is that I can't see borders of the screen. It misses about 30px on each edge (see photo below). I tried to edit the screen settings without success.

The second is that there are interferences in audio output. It could be due to my cable but I tried just before the same configuration with Raspbian installed and it was OK.

Is there a way to prevent it by software ?

Thanks for your answers.

Display More

The 30px missing all around your image are because your plasma is 'over scanning' (or more accurately simulating it).

There is an option in config.txt to allow you to scale the Pi's output, reducing it in size, to counteract overscan in your display. This may only work with HDMI not composite though.

You can also calibrate within Kodi.

If your TV has component inputs - then an HDMI to component adaptor may also be worth a look to improve picture quality.

Yes - flash/config.txt is a very Raspberry Pi specific instruction, that is almost certainly not relevant to a C2.

Quote from blueribb

Even though your NUC is running a Celeron (J3455) processor, it should have enough power to play most HD audio and video files up to 1080p. Are any of your files HEVC encoded ? Even my i5 processor has trouble with those files when FFing and RWing.

Have you tried running Windows on your NUC ?

Doesn't the J3455 support hardware acceleration up to HEVC 10-bit and with UHD resolutions (for decode if not output)? (Is this one of the CPUs that performance varies between single and dual channel RAM config?)

My N3350 Up Squared board plays 2160p50 HEVC 10-bit stuff OK, and that's got the same Intel GPU and a dual core (the J3455 is quad core) CPU.

Quote from Dickermoby

Hello again,

In Backend i'm seeing the time and epg. So i think i only need a rtc for pi3

I saw some solution where i must activate Something in a config File and Set Date First manually. Should i do it with ssh/putty or has libreelec an internal Shell/command Line?

SSH is the way most of us do it.

Quote from Dickermoby

i think i must Check If the wetek Server is getting time with dvb Broadcast (Update function).Can i See it in Backend?

If yes i must Look for a rtc for pi3. Any prefered Module? Is it Plug and Play?

Can you ssh into the Wetek? I think typing

date

will return the system time and date.

Afraid I don't use RTCs - I have an internet connection on all my networks.

Quote from Dickermoby

I'm Not Sure If Fritzbox has a time without internet. Providing as time Server is possible.

Do i need a correct time on Server and Client?

It seems to be a difficult topic.

If i set Update time in Backend, then the time at wetek should be ok? This point i didn't checked.

To make recordings properly, your backend time needs to be set (as it needs to know what time to start recording) In this case your Wetek.

To display a programme guide I would expect your front-end time needs to be correct, as it will need to know the client's time to display the 'right' section of the guide. (ISTR TV Headend can cope with a client and server in different time zones)

An RTC on the Pi is probably the easiest way of keeping the Pi time/date correct?

It could be DVB Time on the Wetek (either via TV Headend or dvbdate) and an RTC on the Pi is the approach you could take.

Can your Fritzbox use a cheap 3G/4G USB broadband dongle with a Pay-and-Go data SIM? If you only need to set NTP now and again that might be a neater solution.

(I have a Dovado router that accepts a 3G/4G USB dongle for use when in summer cabins, on-the-road etc., and as a failover if cabled broadband goes down. They are quite popular in Sweden for this purpose, but other routers also offer this functionality)

Quote from Dante4

That's not possible? Raspberry Pi simple don't have hardware acceleration for 10 bits, 720p low-bitrate maybe, but 1080p?

Recent optimisations of HEVC CPU+GPU decoding on the Pi have done pretty amazing things. 1080p content is playing now - though not all.

Ah - I think we've missed that you're running TVH on a Wetek and your Client on a Pi.

The TV Headend tick boxes and DVBDate will set the time on the Wetek (which is running TV Headend) NOT the Pi client AIUI.

A RTC on the Pi is still a good bet - but if you can get your Fritzbox to run a proper NTP server that might work - though you'll have to configure the Pi to NTP from it?

Beware interlaced content on the Rock64 though. In my experience H264 interlaced TV stuff is still borked.

Quote from Dickermoby

Happy new year to all,

I'm connected to a Router. But i have no Internet. It's Not needed.

I already activated time Update function. But i saw no effect on Client.

I didn't check any changings at wetek Box. It's not connected to Monitor/TV.

I also don't understand, that i cannot record without epg. Only Pressing Button and go..

Have you watched a channel since you enabled Time Update?

Does your router (or whatever is running as your DHCP server) definitely always give the same DHCP leased IP address to the same MAC address? Not all routers do.

Looks like there are two options in Tvh - the Update time will work if you are root and is supposed to be more reliable, the NTP driver will run as any user but is less reliable?

Quote

Time Update

Tvheadend has a built-in capability to update the system time. However, you should bear in mind that DVB time is not highly accurate and is prone to both jitter and variation between different transponders.

Where possible, it’s probably still better to use an internet based NTP source to synchronise the system clock (i.e. through the underlying operating system).

Update time : Enable system time updates. This will only work if the user running Tvheadend has rights to update the system clock (normally only root).

Enable NTP driver : This will create an NTP driver (using shmem interface) that you can feed into ntpd. This can be run without root privileges, but generally the performance is not that great.

Update tolerance (milliseconds) : Only update the system clock (doesn’t affect NTP driver) if the delta between the system clock and DVB time is greater than this. This can help stop excessive oscillations on the system clock.

General - Tvheadend 4.0

Is dvbdate available in any LibreElec add-on?

dvbtools/dvbdate at master · linuxstb/dvbtools · GitHub

That would set the time and date from a currently tuned DVB stream? It might be possible to create a startup script that tuned a main channel and ran dvbdate, and then ran it again, say at 0300 or 0400 each morning? This is how most non-smart set top boxes and TVs work to get their time and date after all.

(It's a relatively old bit of code but might be worth a look?)

Quote from thomsa

Just installed the latest beta 8.95.001 on my wetek play - and also installed the amazon vod plugin. it works but the video slutters ... when i look to cpu usage during playback its at 100% - the codec doesnt seems to use the hardware capabilities of the wetek to decode the h264-stream. ist there a solution?

ARM SoCs have to software decode DRM-ed content from Amazon and Netflix for the DRM component used in Kodi to work. They can't use hardware acceleration for these streams.

Quote from ooztuncer

Hello,

First post on the forums. I have been reading a lot of reviews and forum posts but confused and lost! Would you please recommend me several alternatives for my needs:

Setup: source (searching) > denon s730h receiver (hdcp 2.2 and atmos capable) > 4k projector and 5.1.2 atmos speakers

What I need / am looking for:

a. Netflix 4k HDR + atmos + if possible auto frame rate switching.

b. Able to play 4k HDR + passthrough atmos (lossless) via hard disk (file sizes will be big so NTFS is required) and/or using Kodi.

c. Able to use/play IPTV.

d. ethernet connection.

e. cost: as low as possible

I thought of :

- Apple TV 4k and firestick tv 4k but they are lacking (b),

- using my pc (ryzen 2200g) but AMD haven't released playready drivers for Raven Ridge APU's and I found investing in a RX550 or higher polaris cards or gtx 1050 cards to be expensive and they could very well be cumbersome (drivers, windows issues, etc.),

- not sure about S905D or S912 based android boxes (I have a mecool ms8 pro + and netflix is down once again - twice this year - due to licensing issues) but I am open for a reliable one.

So, can you please recommend something suitable for me or share your thoughts.

Best,

Display More

The only device that almost hits those at the moment is the nVidia Shield TV. (It handles 4K, HDR, Netflix 4K, bit streamed HD audio etc.)

The nVidia Shield TV doesn't have automatic frame rate switching in Netflix yet (Kodi on the Shield TV DOES automatically frame rate switch), and colour gamut output is fixed at either Rec 2020 or Rec 709 (set in the Android settings menu), though gamut and frame rate switching was announced as a change in the new firmware but was then postponed.

The current nVidia Shield TV SDR Rec 709 to SDR Rec 2020 conversion (their alternative to gamut switching) is well implemented - but some TVs don't handle SDR Rec 2020 in the way the nVidia Shield TV mapping expects them too...

If you remove the Netflix 4K requirement (and use a Roku Streaming Stick Plus - which has frame rate and colour gamut switching - or similar for Netflix 4K) then a lot more options become available for Kodi, such as S905X/D (X=100Mbs Ethernet, D=Gigabit Ethernet usually) boxes running OSMC (Vero 4K+) or LibreElec. The Minix U9H (S912 based) also handles LE well - but the GPU in the S912 isn't officially supported in Linux and may not continue to work in Kodi 19 (unless the open source drivers deliver in time) So far I'm not sure how well the AMLogic drivers handle correct HDR10 metadata pass-through for Max/Average light levels (which is needed for some displays to tone-map out-of-range HDR content correctly)

Quote from Nunu81

I have tried several samples like the LG Cymatic Jazz 4k Demo. Any type of HDR or HLG does not work in the rockpro64. I bought another board, as it seems that the rk3399 will take time to work properly

Yep - both the the Cymatic Jazz HLG and HDR10 versions play with HLG and ST.2084 PQ flags correctly on the Rock64.

I have a feeling Max/Avg light level metadata may not be passed with the HDR10 version - will check again.

I have a RockPro64 too - currently running OMV from eMMC. If I get a chance I'll boot it into LE from a uSD card.

Quote from Nunu81

Supposed that it also works with the rockpro64? Does not work for me

What HLG content are you playing?