DNLA resolution problem

[dwillis100]

Hi,

 

I know this subject has been raised before but I cannot seem to find a definitive answer.

 

I am using the DVBViewer recording service to stream to a 2012 LG TV - and it works perfectly! Except for one small problem - any channel that is transmitted with a resolution of 544x576 appears on the TV squashed in from the sides. I believe this is because the TV just displays what it receives.

 

Is there anything I can do about this?

 

Regards

[dwillis100]

Hi,

 

After 63 views - no suggestions? Anyway - I managed to get round this problem. Using Wild Media Server I can tune the Satellite card, pick the channels I need, configure the transposing options and stream to the TV using DLNA, but - no need to use DVBViewer!

 

Regards

[Lars_MQ]

Is there anything I can do about this?

That's a problem of LG not the RS. It seems it doesn't detect the aspectratio correctly.

[dwillis100]

Hi,

 

I disagree!

 

The problem is that DVBViewer and the LG TV do not talk to each other correctly. Either company could solve the problem but neither seems prepared to.

 

So, fortunately there is a third party solution that not only works, but provides the abilty to change just about every pararameter that controls the DNLA stream.

 

Regards.

[Derrick]

Using Wild Media Server I can tune the Satellite card, pick the channels I need, configure the transposing options..

what is meant by transposing options? If you re-encode the stream you don't need a AR.

[dwillis100]

HI,

 

Sorry, I meant transcoding, for example DVBViewer streams some satellite channels at 544x576 with a different pixel ratio. Wild Media Server allows you to change the resolution to be streamed.

 

What is "AR"?

 

Regards

[Tjod]

AR = aspect ratio

http://en.wikipedia.org/wiki/Pixel_aspect_ratio

[Derrick]

AR = Aspect Ratio. As Lars said your LG client doesn't read the AR but only the pixel ratio. RS has also a transcoding option

[dwillis100]

Hi,

 

Derrick, I understood from previous posts etc. that DVBViewer Recording Service does NOT have a transcoding option. That was the purpose of the original question! If the DVBViewer Recording Service has a transcoding option where is it? How do you use it? Come on guys, can I have I bit of help here!

 

Regards.

[Lars_MQ]

DVBViewer Recording Service does NOT have a transcoding option

Yes.

 

Start bugging LG. Their Problem not ours.

 

Transcoding = needs CPU = Stupid, cause they have everything "onboard" to handle this kind of channel/DAR/SAR stuff.

 

I'm fed up with having to solve/fix problems of really big $ companies, just because they are either to stupid or not willing to do things right.

[QBox User]

A similar problem affected Samsung B-series TVs. The developers had not taken into account European DVB-T systems used non-square pixels, and the TV ignored the AR setting, so recordings didn't get stretched on playback over DLNA. Samsung wouldn't fix the problem (until the next series TVs), but a smart hacker did it and offered a patch on a public forum.

 

That initial hack spawned a whole community (SamyGo) of hackers who used various exploits to upgrade their TVs - from web browsers to games to PVRs. Samsung had to spend much more time and effort in trying to block the exploits than they would have done on the initial fix.

 

The OP might want to raise awareness of the issue on an LG user forum and try to get more complaints raised.

[dwillis100]

Here is a copy of my chat with LG support!

 

 

3:34 PM TV, Monitors, AV and IT Support: Hello, David Willis. Can I help you with anything today?

3:35 PM David Willis: Hi, I have a LG 47LM620T TV and I use it to display out put from A DLNA server. The aspect ratio is not correct.

3:38 PM TV, Monitors, AV and IT Support: What are you steaming video over DNLA correct?

3:40 PM David Willis: I am treaming from DVBViewer Recording Service. The TV does not take any notice of the aspect or pixel ratio.

3:41 PM TV, Monitors, AV and IT Support: When you bring up the aspect ratio options what do you get?

3:42 PM David Willis: Only full and original - neither is correct.

3:44 PM TV, Monitors, AV and IT Support: Right, just need to take a look at the DVBView bear with me.

3:45 PM David Willis: here is a post from the thread I raised on the DVBViewer forum:

3:46 PM David Willis: A similar problem affected Samsung B-series TVs. The developers had not taken into account European DVB-T systems used non-square pixels, and the TV ignored the AR setting, so recordings didn't get stretched on playback over DLNA

3:46 PM David Willis: After much research I am sure the problem is with the LG TV

4:01 PM TV, Monitors, AV and IT Support: I apologise for the delay.

4:02 PM TV, Monitors, AV and IT Support: I've been looking into this with the technicians and unfortunately there isn't much we can do. It is how it been designed, the DLNA content streamed will be shown in it original format.

4:03 PM David Willis: But you advertise the TV as being DLNA compliant - so are you now saying it is not?

4:05 PM TV, Monitors, AV and IT Support: Yes, the TV is supports DLNA.

4:07 PM David Willis: Samsung also had this problem and have corrected it - maybe I should return the TV and buy a Samsung?

4:07 PM TV, Monitors, AV and IT Support: How did Samsung corrected theirs?

4:09 PM David Willis: As I posted above it was first corrected by a third party - which caused so many problems that Samsung had to correct it.

4:11 PM TV, Monitors, AV and IT Support: Do you know what Samsung did to correct this? As way that has been said tells me that it was the streaming software that needed to be updated to correct.

4:14 PM David Willis: OK I don't seem to be getting anywhere - DVBViewer say it is your fault - you say it is their fault! It the meantime I spend nearly £1000 and do not get a solution!

4:17 PM TV, Monitors, AV and IT Support: In some ways it can be related to the software you use for streaming. I will by all means bring this to the attention of LG and see if we can look into this but as far as we are aware we have found no issues with the DLNA capabilities with our 2012 models.

4:19 PM David Willis: You have now! I would be very greatful if you would raise this with LG and please let me know if they have any plans to fix this problem. Once I know that I can decide what further action to take.

4:21 PM TV, Monitors, AV and IT Support: No worries, I'll create you a record. Can I take your details, I would need a name and contact number.

[QBox User]

A simple fix would be to stretch the picture to full screen (16:9) instead of preserving what the TV thinks is the original AR. That was the initial hack on the Samsungs. The option actually existed for other sources, but not for DLNA.