ODROID C2 S905 2GB RAM HDMI 2.0 $46 - Printable Version +- Kodi Community Forum (https://forum.kodi.tv) +-- Forum: Discussions (https://forum.kodi.tv/forumdisplay.php?fid=222) +--- Forum: Hardware (https://forum.kodi.tv/forumdisplay.php?fid=112) +--- Thread: ODROID C2 S905 2GB RAM HDMI 2.0 $46 (/showthread.php?tid=258707) Pages:
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RE: ODROID C2 S905 2GB RAM HDMI 2.0 $40 - noggin - 2016-04-17 (2016-04-17, 21:23)wesk05 Wrote:(2016-04-17, 20:46)noggin Wrote: Thought others might be interested that the Astra 28.2 UHD test channel received in TV Headend (running on an x86 box) using a SAT>IP tuner is decoding fine so far on my C2. No artefacts yet that I've seen. Not sure what you mean? All the UHD tests I've seen so far have been using AAC rather than AC-3. I think there's an aim to avoid Dolby proprietary stuff where possible for basic services. AAC also seems to run at lower bitrates? The UK OTA standard is MP2 for SD and AAC for HD (partially because Dolby didn't have an Audio Description solution for TV) The BBC HD channels dynamically switch between AAC 2.0 and AAC 5.1 for surround content (and change audio bitrate too - bumping up the bitrate for 5.1 stuff) The BBC UHD tests on DVB-T2 in 2014 (World Cup and Commonwealth Games) were AAC 2.0 too. RE: ODROID C2 S905 2GB RAM HDMI 2.0 $40 - wesk05 - 2016-04-17 (2016-04-17, 21:33)noggin Wrote: Not sure what you mean? All the UHD tests I've seen so far have been using AAC rather than AC-3. I think there's an aim to avoid Dolby proprietary stuff where possible for basic services. AAC also seems to run at lower bitrates? I don't know. I thought I read somewhere that UHD-1 DVB standards specified AC-3 for audio. I think the U.S. broadcasts are looking for AC-4. Looks like ATSC committee has recommended AC-4 over MPEG-H Audio Alliance System for ATSC 3.0 RE: ODROID C2 S905 2GB RAM HDMI 2.0 $40 - noggin - 2016-04-17 (2016-04-17, 21:55)wesk05 Wrote:(2016-04-17, 21:33)noggin Wrote: Not sure what you mean? All the UHD tests I've seen so far have been using AAC rather than AC-3. I think there's an aim to avoid Dolby proprietary stuff where possible for basic services. AAC also seems to run at lower bitrates? DVB isn't really like that. You can pick and chose from the buffet of standards in the DVB specs. There are then platform standards - like the UK Digital TV Group's D-Book for OTA SD and HD receivers, or the NorDig standard (which is for Sweden, Norway, Denmark, Finland, Iceland and Ireland - even though Ireland isn't a Nordic country...) which is similar (but has some regional variations) plus then the Pay-TV platforms can do some of their own thing. The ATSC kind of encompasses both the DVB and UK DTG group in one - to create a US receiver standard. DVB is a bit wider than that as it recognises different broadcasters and territories have differing needs. There can't be a one-size-fits-all standard (whether it's audio codec or interactivity system) We don't have a totally nailed down 'every DVB broadcast should use this' - but there is a basic set of standards that you can reasonably expect to be supported (and in some cases they may be mandated) One major issue with AC3 - which is why the UK OTA standard doesn't use it - is that there was no Dolby 'receiver mix' functionality for low bitrate audio description to be mixed (with panning vectors and audio dip functionality) with the main programme audio in 2.0 and 5.1 content. DVB has too many flavours - and too many platforms to force specific codec choices on all users of it. We have multiple subtitling standards (WST teletext legacy and DVB bitmap), multiple interactive text services (MHP, MHEG-5, HbbTV plus things like OpenTV), multiple audio flavours (MP2, AC3 and AAC), and multiple video codecs (MPEG2, H264, HEVC), with multiple modulation options (DVB-T, DVB-T2, DVB-C, DVB-S, DVB-S2 etc.) as well as IP options. However there is a reasonable standardisation process in most countries, so it works well for us it seems. RE: ODROID C2 S905 2GB RAM HDMI 2.0 $40 - noggin - 2016-04-17 For info (apologies if off topic) here are some other HEVC Media Info reports : BBC World Cup 2014 (which was produced in 59.94p and the BBC didn't convert it to 50p) Code: General BBC Commonwealth Games 2014 (which was produced in 50p and used IP production techniques rather than purely Quad-3G HD-SDI as most other stuff had been up until then) Code: General These were 8-bit and flagged as Rec 2020. They are not necessarily predictive of future standards (The BBC 2006 HD OTA tests used DVB-T + H264 - as did Sweden for a while - but both our OTA HD standards ended up using DVB-T2) Both of these samples play fine in LibreElec on the ODroid C2. RE: ODROID C2 S905 2GB RAM HDMI 2.0 $40 - wesk05 - 2016-04-18 @noggin: Thanks for the information! RE: ODROID C2 S905 2GB RAM HDMI 2.0 $40 - blackride - 2016-04-18 (2016-04-16, 20:53)noggin Wrote:(2016-04-16, 19:00)blackride Wrote: rips 1080p HEVC 10 bit not playing on C2 or different devices by Amlogic S905. So bad My test video files 1080p hevc 8/10/12 bit. https://yadi.sk/d/RWs7WnpEpAd8d RE: ODROID C2 S905 2GB RAM HDMI 2.0 $40 - wrxtasy - 2016-04-18 Blackride, I've seen users wanting us to test these clips on 3 or 4 seperate occasions now. A bunch of them are not labelled correctly and the supposed 10-bit ones are actually 12-bit. Some 8-bit are actually 10-bit. None of these incorrectly labelled 10-bit (which are actually 12-bit) will play on a 10-bit decoder. So the question is are these clips now finally labelled correctly ? Run them through the Mediainfo program first to see what bitrate they are actually supposed to be pls. RE: ODROID C2 S905 2GB RAM HDMI 2.0 $40 - noggin - 2016-04-18 (2016-04-18, 04:27)wrxtasy Wrote: Blackride, I've seen users wanting us to test these clips on 3 or 4 seperate occasions now. A bunch of them are not labelled correctly and the supposed 10-bit ones are actually 12-bit. Some 8-bit are actually 10-bit. I've downloaded them and will have a look. I think you meant bit-depth rather than bit-rate? None of them look particularly high bit-rate if that is also a concern. RE: ODROID C2 S905 2GB RAM HDMI 2.0 $40 - blackride - 2016-04-18 (2016-04-18, 04:27)wrxtasy Wrote: Blackride, I've seen users wanting us to test these clips on 3 or 4 seperate occasions now. A bunch of them are not labelled correctly and the supposed 10-bit ones are actually 12-bit. Some 8-bit are actually 10-bit.Ok. Thank you. I will check it. RE: ODROID C2 S905 2GB RAM HDMI 2.0 $40 - blackride - 2016-04-18 (2016-04-18, 04:27)wrxtasy Wrote: None of these incorrectly labelled 10-bit (which are actually 12-bit) will play on a 10-bit decoder. So the question is are these clips now finally labelled correctly ? Test_2_1080p_HEVC_8_bit.mkv - mistake (true 10 bit (Main 10)) Test_1_1080p_HEVC_10_bit.mkv (yuv420p10le) : Code: Unique identifier: 192315223113592926139485465918645508188 (0x90AE908FE405FB9BA7028EB7F178985C) I understand that the 12-bit is not Hardware decoding. But rip 10 bit it should hardware decoding. Why not playing hevc 10 bit? RE: ODROID C2 S905 2GB RAM HDMI 2.0 $40 - wrxtasy - 2016-04-27 (2016-04-27, 09:31)noggin Wrote: I notice that currently the LibreElec official releases have functionality missing on the AMLogic platform currently (no Docker support) because of the old kernel...On the AML S905 C2 Docker support has just been merged into the Kernel: https://github.com/hardkernel/linux/pull/161 I'm not that familiar with Docker, but it should not be too hard to add the package to the LibreELEC builds I release. RE: ODROID C2 S905 2GB RAM HDMI 2.0 $40 - noggin - 2016-04-27 (2016-04-27, 10:44)wrxtasy Wrote:(2016-04-27, 09:31)noggin Wrote: I notice that currently the LibreElec official releases have functionality missing on the AMLogic platform currently (no Docker support) because of the old kernel...On the AML S905 C2 Docker support has just been merged into the Kernel: That's good news. Docker allows you to distribute containerised apps - a bit like tiny VMs (but without the bloat of a VM). unRAID supports it to allow apps like TV Headend to be installed on the server in a standardised manner. It'll be a great day when we can run a 4.x Kernel on our AMLogic boxes... Any news on audio developments? I still get the DD/DTS drop outs on the builds I'm running on my C2 - though the OE build on the S905-based MiniMX bitstreams True HD (not DTS HD MA) and seems better with DD/DTS in the brief time I've played with it since it arrived yesterday. (It looks pretty good value - and other than the 1GB vs 2GB RAM on the C2 - similar specs - though it has built in 8GB flash storage and internal Bluetooth and WiFi, and as people are developing OE builds for it, there is some hope the development may go both ways... ) RE: ODROID C2 S905 2GB RAM HDMI 2.0 $40 - dukester - 2016-04-27 (2016-04-27, 10:44)wrxtasy Wrote: I'm not that familiar with Docker, but it should not be too hard to add the package to the LibreELEC builds I release. where is the github source for the builds you release?? nm i found it thanks!! RE: ODROID C2 S905 2GB RAM HDMI 2.0 $40 - wrxtasy - 2016-04-27 (2016-04-27, 11:20)noggin Wrote: Any news on audio developments? I still get the DD/DTS drop outs on the builds I'm running on my C2Been playing around a bit and just finished: LibreELEC-Odroid_C2_aarch64-7.0.0-Kodi-Jarvis-16.1-Final.tar I'm getting DD/DTS Passthrough Kodi Log Messages and Audio seems to be playing without drops to my TV at least. An AVR would be the real test. RE: ODROID C2 S905 2GB RAM HDMI 2.0 $40 - noggin - 2016-04-27 (2016-04-27, 13:09)dukester Wrote:(2016-04-27, 10:44)wrxtasy Wrote: I'm not that familiar with Docker, but it should not be too hard to add the package to the LibreELEC builds I release. Be useful to include the github URL if you found it. Thanks. |