Media Portal and new Reclock (2 Viewers)

[red5goahead]

I'm testing the new reclock with Media Portal.
New reclock seems work fine under Media Portal. Almost (there is some problem at the start, sometimes I got a jerky play, most of them a puase & stop is enough to resolve)
I'm trying to play smooth 24fps material under Pal/50 HZ. plasma tv. At the same time it is possibile
to play pal material on 24 fps compliant monitor. My monitor do not suppor that only 50 and 60 hz. but
Reclock does. New Reclock keep multichannel audio stream recoding on-the-fly the accellerated or decellerated pcm channel.

Media Portal do not support any video renderer than evr or vrm9 and do not support Haali renderer.
could be very usefull allow media portal haali renderer for testing purpose. Developer think could be create a new video renderer to allow its audio renderer work better. is it possibile in next svn to allow MP to select a custom new renderer?

thanks a lot.

MediaPortal Version: 1.0 RC2
MediaPortal Skin: Indigo 2.2
Windows Version: Vista Business 32bit
CPU Type: Intel e4400
HDD: Western Digital 320MB
Memory: PC6400 Kingston 2GB
Motherboard: Asus P5K
Video Card: Asus EAH3850
Video Card Driver: Catalyst 8.8
Sound Card: Realtek HD
MPEG2 Video Codec: Gabest MPV
MPEG2 Audio Codec:
h.264 Video Codec: CoreAvc / Ffdshow
Cooling: ZeroTherm CF800
Power Supply: LC Power Titan
Remote: Trust Mce Remote RC-2400
TV: Panasonic 37PV60
TV - HTPC Connection: HDMI

 

[ErikLarsson]

Which version of reclock are you refering to as the "new reclock"?

And i'd like to investigate the problem of jerky video that gets fixed by pause and play.

Also, please provide your settings for reclock, direct3d or directdraw?
Vmr9 exclusive mode or not?
Vsync on or off?

Thanks!
/Erik

 

[gibman]

How does reclock handle spdif ac3/dts stuff when changing FPS from 24 to 25 as an example ?
The old reclock filter dropped a lot of ac3/dts frames, which of course sounded terrible.

Does it work like this;

decode the ac3 internally
resample the 6 channels (internally)
re-encode to ac3 (using the resampled 6 channels)
output new clean ac3 to spdif

= glitch free but lossy ac3 stream.

I wonder what the CPU penalty is ?

Interesting non the less, for peeps with 50hz / 60hz only tv sets.

/gibman

 

[robyf]

Which version of reclock are you refering to as the "new reclock"?

And i'd like to investigate the problem of jerky video that gets fixed by pause and play.

Also, please provide your settings for reclock, direct3d or directdraw?
Vmr9 exclusive mode or not?
Vsync on or off?

Thanks!
/Erik

A new version of reclock is being developed by ******* now.

Works under vista. Go on their site and search for reclock in the forums.

Ops... seems the name is blacklisted If you search for new reclock on google you should find it.

 

[red5goahead]

Which version of reclock are you refering to as the "new reclock"?

And i'd like to investigate the problem of jerky video that gets fixed by pause and play.

Also, please provide your settings for reclock, direct3d or directdraw?
Vmr9 exclusive mode or not?
Vsync on or off?

Thanks!
/Erik

I'm test all new beta release. the last one is the 1.8.1.5.
When start fine Reclock is amazing because I play smoothly an mkv x264 23,976 fps with 50 HZ monitor
for an hour with out any jitter / stuttering. Sometimes Reclock start , reclock detect correct monitor refresh. beciome green but the play is jerky . pause and play or stop and play normaly resolve the issue.
I use directdraw (the default) . I 'm under Vista so I use evr (in my htpc vrm9 do not start) . evr is fine.
vsync is off.

How does reclock handle spdif ac3/dts stuff when changing FPS from 24 to 25 as an example ?
The old reclock filter dropped a lot of ac3/dts frames, which of course sounded terrible.

Does it work like this;

decode the ac3 internally
resample the 6 channels (internally)
re-encode to ac3 (using the resampled 6 channels)
output new clean ac3 to spdif

= glitch free but lossy ac3 stream.

I wonder what the CPU penalty is ?

Interesting non the less, for peeps with 50hz / 60hz only tv sets.

/gibman

No. the new reclock get pcm channel from decoder (ac3) for example (no spdif must be selected in there). accelerate or decelerate them (24->25, 25->24), streching the audio to compensate and recode them in ac3 stream over spd/if to the selected device.
work fine on 50 HZ. for film based material. but also run PAL material on 24 fps complian monitor !!
the up/slowdown, audio streching and dolby digital live recoding take about 10% cpu on a intel dual core 2.4ghz.

 

[ErikLarsson]

How does reclock handle spdif ac3/dts stuff when changing FPS from 24 to 25 as an example ?
The old reclock filter dropped a lot of ac3/dts frames, which of course sounded terrible.

Does it work like this;

decode the ac3 internally
resample the 6 channels (internally)
re-encode to ac3 (using the resampled 6 channels)
output new clean ac3 to spdif

= glitch free but lossy ac3 stream.

I wonder what the CPU penalty is ?

Interesting non the less, for peeps with 50hz / 60hz only tv sets.

/gibman

Yeah, from reading it, thats what i think is going on. And i don't think this is taxing the cpu much at all actually.

My motherboard (old asus a7n8x) have a onboard soundcard that encodes ac3 on the fly (which ac3filter can do aswell) so i decode all sound to 5 ch PCM internally first. Which then enables me to run 24fps content at 25fps, and manipulate sound however i want (pitch correct it etc so no one sound like a chipmunk).

I've also done sound comparisons and for me with my system it doesn't sound worse in terms of quality.

beciome green but the play is jerky . pause and play or stop and play normaly resolve the issue.

Ok, but i want to fix the issue so i *never* have to pause and play, it drives me and my girlfriend nuts

No. the new reclock get pcm channel from decoder (ac3) for example (no spdif must be selected in there). accelerate or decelerate them (24->25, 25->24), streching the audio to compensate and recode them in ac3 stream over spd/if to the selected device.
work fine on 50 HZ. for film based material. but also run PAL material on 24 fps complian monitor !!
the up/slowdown, audio streching and dolby digital live recoding take about 10% cpu on a intel dual core 2.4ghz.

I hadn't seen your post when i wrote mine, but i believe that the only way to speed up an ac3 stream is to repeat packets, which sounds terrible (and is unwatchable) on my setup. So i think the only option is to decode -> speed up -> encode.

Um... but as i read your post again you seem to say exactly that, so why are you answering "No."?

 

[red5goahead]

Um... but as i read your post again you seem to say exactly that, so why are you answering "No."?

No. I refer to "The old reclock filter dropped a lot of ac3/dts frames, which of course sounded terrible".
new reclock work in a different way.

>Ok, but i want to fix the issue so i *never* have to pause and play, >it drives me and my girlfriend nuts

:sorry:

Maybe the MP log could help you?

 

[red5goahead]

Post the log when a file is played and become jerky.

 

[Phunky]

Whats relock?

 

[mdsflyer]

Phunky, google first, ask questions later