TV Quality via bitrate

aikon · 2007-04-18, 09:16

Hi all,

Have TV server engine 0.3 up and running. I have all configured and running and the only thing that keep me from using it instead of my MCE 2005 is the picture quality of the new TV Server.

I found out that the Nvidia decoders does the best job for a good picture quality and it also shows how much bitrate the tv-picture is using. When running in MCE 2005 the bitrate goes from around 6 to 8000. When using TV Server the bitrate is about 3-4000 = VERY LOW = Poor video quality.

I have Hauppuage PVR 500 (dual tuner/analog tv-card) and using this in the 0.2.2.0 version of mediaportal without the TV Engine 0.3 the quality is fine as I can put in the desired bitrate in the configuration of mediaportal. But this can not be done in the TV Server as far as I know!

So - how can I change this in the new TV Server - so that I get the bitrate up to about 8000 for the encoded tvstream?

NarkoKrig · 2007-07-06, 15:32

*Bump*

joboehl · 2007-07-11, 13:41

Currently, just changing the code and recompiling.

Theres not an option (yet) to set the desired video quality/bitrate for hauyppauge and TVE3.

diehard2 · 2007-07-11, 16:19

Hi,

I'm the person that implemented the quality control for the Hauppauge cards. They do not behave well above the bitrate that is currently being used. I believe the flaw is in a third party library the tv server uses, but I won't have time for several months to track that down. I don't even know if it can be fixed. It doesn't matter how fast your computer is. At bitrates higher than the current settings, your tv will significantly stutter. If recording at a high quality is important to you, I suggest you stick with TVE 2. Sorry.

revs · 2007-07-11, 16:39

Is this the case with all Hauppage TV Cards? or only certain models?

diehard2 · 2007-07-11, 17:50

All analog mpeg2 hardware encoding Hauppauge cards. The interface is essentially the same.

Spragleknas · 2007-07-31, 01:29

So using TVE3 reduces quality for us analogue users?

2007-04-18, 09:16	#1 (permalink)
aikon Portal Member Join Date: Jul 2005 Location: Odense Age: 37 Posts: 7 Thanks: 0 Thanked 0 Times in 0 Posts Country:	TV Quality via bitrate Hi all, Have TV server engine 0.3 up and running. I have all configured and running and the only thing that keep me from using it instead of my MCE 2005 is the picture quality of the new TV Server. I found out that the Nvidia decoders does the best job for a good picture quality and it also shows how much bitrate the tv-picture is using. When running in MCE 2005 the bitrate goes from around 6 to 8000. When using TV Server the bitrate is about 3-4000 = VERY LOW = Poor video quality. I have Hauppuage PVR 500 (dual tuner/analog tv-card) and using this in the 0.2.2.0 version of mediaportal without the TV Engine 0.3 the quality is fine as I can put in the desired bitrate in the configuration of mediaportal. But this can not be done in the TV Server as far as I know! So - how can I change this in the new TV Server - so that I get the bitrate up to about 8000 for the encoded tvstream? __________________ Best regards, Aikon Last edited by aikon; 2007-04-18 at 10:13.

2007-07-31, 01:29	#7 (permalink)
Spragleknas Super Moderator Join Date: Dec 2005 Location: Rogaland Age: 32 Posts: 3,503 Thanks: 151 Thanked 69 Times in 59 Posts Country: My System	So using TVE3 reduces quality for us analogue users? __________________ Please read -> HOW TO START A SUPPORT THREAD !!! Support MediaPortal! Donate by clicking HERE Dedicated HTPC board (Norway) -> MSPC.no

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2007-07-06, 15:32	#2 (permalink)
NarkoKrig Portal Member Join Date: Jul 2006 Location: Copenhagen Age: 32 Posts: 9 Thanks: 0 Thanked 0 Times in 0 Posts Country:	Bump

2007-07-11, 13:41	#3 (permalink)
joboehl Portal Developer Join Date: Jul 2006 Age: 32 Posts: 421 Thanks: 3 Thanked 2 Times in 2 Posts Country: My System	Currently, just changing the code and recompiling. Theres not an option (yet) to set the desired video quality/bitrate for hauyppauge and TVE3.

2007-07-11, 16:19	#4 (permalink)
diehard2 Portal Developer Join Date: Apr 2006 Location: Chicago Posts: 513 Thanks: 2 Thanked 13 Times in 9 Posts Country:	Hi, I'm the person that implemented the quality control for the Hauppauge cards. They do not behave well above the bitrate that is currently being used. I believe the flaw is in a third party library the tv server uses, but I won't have time for several months to track that down. I don't even know if it can be fixed. It doesn't matter how fast your computer is. At bitrates higher than the current settings, your tv will significantly stutter. If recording at a high quality is important to you, I suggest you stick with TVE 2. Sorry.

2007-07-11, 16:39	#5 (permalink)
revs Portal Member Join Date: Feb 2007 Location: London Age: 25 Posts: 447 Thanks: 14 Thanked 12 Times in 10 Posts Country: My System	Is this the case with all Hauppage TV Cards? or only certain models?

2007-07-11, 17:50	#6 (permalink)
diehard2 Portal Developer Join Date: Apr 2006 Location: Chicago Posts: 513 Thanks: 2 Thanked 13 Times in 9 Posts Country:	All analog mpeg2 hardware encoding Hauppauge cards. The interface is essentially the same.