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Transcoding for LG TVs

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dfayruzov

Serviio newbie

Posts: 1

Joined: Sun Jun 10, 2012 9:38 pm

Post Sun Jun 10, 2012 10:09 pm

Transcoding for LG TVs

Hi everybody,
guys from Home Media Server (http://www.homemediaserver.ru) made transcoding possible for LG TVs. Here is the link for idea explnanation: http://www.homemediaserver.ru/forum/vie ... 073#p10100 (in Russian, sorry, but can be viewed via Google Translate).

Let me translate a bit of it for you:
"On pressing play on file LG TV makes several requests to media server: first two in the start of file, and third somewhere in the middle or even in the end of file. Such behavior is for any type of file - MPEG TS/PS, avi, mkv, mp4, wmv, asf except raw MPEG-1 и raw MPEG-2, but unfortunately they don't support audio."
Next, author analyzed how LG TV reacts for different server's answers. HTTP 416 Requested Range Not Acceptable led to "unsupported file" message on TV. He came up to solution: it is possible to send to TV correct headers (206 Partial Content, correct Content Range, etc), but don't send data and close connection - TV assumes everything is OK and started playing.
After 10-15 seconds (while we can see "loading" message) TV makes request ContentDirectory for file description, series of before mentioned requests and starts playing.

Hope it helps.

PS: I have LG 42LV3700 TV, know what Wiresharks is and can test a little if needed. )
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zip

User avatar

Serviio developer / Site Admin

Posts: 17053

Joined: Sat Oct 24, 2009 12:24 pm

Location: London, UK

Post Mon Jun 11, 2012 3:59 pm

Re: Transcoding for LG TVs

that is interesting, thanks. I will create a ticket. Join the beta group if you want to test it once it's been implemented.

https://bitbucket.org/xnejp03/serviio/i ... ing-for-lg
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patters

User avatar

DLNA master

Posts: 1273

Joined: Sat Oct 09, 2010 3:51 pm

Location: London, UK

Post Fri Jun 29, 2012 11:16 pm

Re: Transcoding for LG TVs

My brother has an LG, so I can test this too and gather wireshark traces etc.
LG OLED55B8PLA | PS4 Pro | Xbox One S | Synology DS214play
Serviio 2.0 package for Synology NAS - with limited hardware transcoding support!
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dekips

Serviio newbie

Posts: 12

Joined: Tue Jul 31, 2012 3:53 am

Post Tue Aug 07, 2012 6:11 pm

Re: Transcoding for LG TVs

Any progress with this?
I have an LG TV as well that experiences the transcoding issues. Would be glad to test any beta/rc candidate and provide wireshark logs needed. Theres only one software I've used that supports LG's and it only runs Windows. This would be a HUGE plus for Serviio I believe.

To overcome the issue I just run a script on any mkv file after I add it to my library to turn the dts audio track to an ac3 track and play everything native since the TV supports h.264 :)

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