Problems with live tv ever since 1.1.5

[marieper]

Ever since I upgraded to 1.1.5 in November, and then tried to use the EVR and thus .net 3.x, I have had problems with live tv. Most of the issues resembles the stuttering described in the Disappointing MPEG2 decoding thread. As the dvb-application that came with the card (Twinhan 3030) plays ok, I have ruled out the quartz problem.

Since then I have completely reinstalled XP (format c and reinstalled my most important applications, to no good.
I have also tried the same combinations of video and audio codecs as I had in 1.0.16 according to my backuped confix.xml, still no satisfied quality on video.

The track I would like to follow is to analyze what's in use when using DigitalTV that came with with the card, and here I fail to - what do I need in order to do this? Can it be done in realtime? (Alternate path is to DL 1.0.16 if I can find it anywhere, mine got blown away with the reformat) and start off from there, as when installing th original 0.x I did nothing to the codecs)

A tutorial would just save my day as WAF is on rapid decline :-(

ANYTHING will be appreciated, as the tips and tricks discussed in Disappointing... seems no to have solved my problem.

[pBS]

need more details..which codecs? using -fse mode? [it helps alot]
tried the 'reregisterfilters.bat'?

have any other demux's you can use? sometimes diff demux helps..
download Gspot to use to look for filters...
also, make sure don't select 'system default' in any of the playback codec settings.. set explicitly...[audio renderer usually 'default directsound device']

after playing back video, check logs to see that the expected codecs are actually being used..

does same kind of video play well in any other players?

[marieper]

I've mostly been using:
<PreferredDecoder>CyberLink Video/SP Decoder (PDVD7)</PreferredDecoder>
<PreferredAudioRenderer>DirectSound: SoundMAX HD Audio O</PreferredAudioRenderer>
<PreferredAudioDecoder>CyberLink Audio Decoder(TwinHan)</PreferredAudioDecoder>

I know that I've executed the regfilter.bat at leas once, which made no difference at the time.

Viewing live tv through DigitalTV gives, as stated earlier, a problem free image (720 x 576i), same thing while playing a recorded dvr-ms file (wmp or nero showtime, here it is dispalyed as 720x576) - so so far it is only gbpvr that misbehaves. Rendering a video in GrapghEdit claims the video is handled by ffdshow Video Decoder

I tried -fse just now, I can not say if it improves the situation, as the pc goes into a crawling speed (but no load on CPU), and nothing really happens... Tride t find any docs on the fse switch, but found nothing up front.

[marieper]

Answering myself...

Viewing the GrapghEdit for a recorded file from DigitalTV displays the following (video)

xxx.mpg -> MPEG2 demultiplexer -> Cyberlink Video/SP Decoder (PDVD7) -> Video Renderer

while viewing the gbpvr displays:
xxx.dvr.ms -> ffdshow Video Decoder -> Video renderer
but then, again, rendering an old video from the time where gbpvr behaved, it is handled in exaclty the same way as above.

And by the way, swithing BDA muxltiplexer to Cyberlink as oposed to dvr-ms, gave the same result in GraphEdit for gbpvr as for digitalTV...


Viewing the logs I should have the Cyberlink codecs in use:
2008-02-12 00:32:57.156 VERBOSE 16:9 television
2008-02-12 00:32:57.171 VERBOSE getSetting(PreferredAudioRenderer)
2008-02-12 00:32:57.265 VERBOSE audio renderer filter: CyberLink Audio Renderer (PDVD7.x)
2008-02-12 00:32:57.265 VERBOSE getSetting(PreferredDecoder)
2008-02-12 00:32:57.312 VERBOSE video decoder filter: CyberLink Video/SP Decoder (PDVD7)
2008-02-12 00:32:57.312 VERBOSE getSetting(PreferredAudioDecoder)
2008-02-12 00:32:57.328 VERBOSE audio decoder filter: CyberLink Audio Decoder(TwinHan)

[sub]

It may not help, but I'd try switching the audio renderer back to 'system default'. Many people have had stuttering problems when they've used anything but system default.

[pBS]

yep, looks like that's it...i could never even get it to work anywhere near right..
[cyberlink audio renderer] audio decoder shoudl be ok tho..
it's made special for powerdvd and doesn't really work well in anything else..

also the ffdshow is very stuttery, so go into it and make sure it's not set as 'preferred' merit or just set mpeg2 codec to 'disabled' so nothing will try to use it for mpeg2...[graphedit tries highest merit codec first] it works fine for other things but mpeg2 decode isn't good..

[pBS]

oh and might wanna try cyberlink mux too so you'll get mpg output..
[i prefer ati avivo mux myself]

[marieper]

I switched to the cyberlink mux just before closing for the night yesterday.

I'll have look at the ffdshow settings (they are just too many for a white collar like myself), might just deinstall them as well - I installed it as silver bullet sollution, and I'm not using it for anything, afaik.

[marieper]

Seems like disabeling the Config Misc Live preview mode improves resolution and the smoothness in video - this si strange as I know that this has been enabled all the time before.
I might try with an older nVidia driver as well...

[marieper]

Finally I'm back to where I came from - by downgrading nVidia to a pre 100-version graphics driver, things are very much better.

I still can not enable Live Preview mode - but I think it is soemthing i can live with...