WMP9 Problem with streaming...

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Caridy - 12 Oct 2004 14:22 GMT

I'm trying to see a video streaming from WMServices Server. The PPC
WMplayer9 go well until the video stop after few seconds, never more that 3
minutes,.
I'm using one acces point (Wifi) and a PPC X30 wifi 624mhz Dell with Windows
CE 2003, and a video streaming bitrate over 1mbps.

But when a play the same video directly from disk, (streaming saved to disk)
the player go well, and don't stop. I was testing the same video stream with
a table PC with Wifi, and WMplayer go well.

Any Idea?

regards
caridy

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Neil Smith [MVP Digital Media] - 12 Oct 2004 15:38 GMT

I can tell you for nothing, you'll be unlikely to get the Dell to pick
up 1mbps reliably over WLAN, regardless of the actual ratings of the
802.11b chipset and AP.

I believe the maximum recommended bitrate for PPC media player 9
hovers somewhere around 5-600kbps, any more than that is wasted as the
screen is only 320x240, can handle maybe 15fps, and 16bit 44khz audio
doesn't take up much of that 600kbps. (Not that you'll tell the
difference through the PPC audio hardware between 22k and 44k anyway!)

Why not use one of the specific WM for PPC profiles in the encoder,
most of them average out at about 225kbps.

PS whats a table PC ? Did you mean Tablet PC ? It's a fully fledged
PC, wheras a PPC is a portable souped up PDA. Don't expect it to be
able to replicate the performance of a desktop class machine.

HTH
Cheers - Neil

>I'm trying to see a video streaming from WMServices Server. The PPC
>WMplayer9 go well until the video stop after few seconds, never more that 3
[quoted text clipped - 10 lines]
>regards
>caridy

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TSK - 13 Oct 2004 02:12 GMT

When I was receiving 225kbs video streaming with Wi-Fi on Dell Axim X30, I
experienced frequent display interrupt due to buffering.

Why?

Thanks,
TSK

> I can tell you for nothing, you'll be unlikely to get the Dell to pick
> up 1mbps reliably over WLAN, regardless of the actual ratings of the
[quoted text clipped - 30 lines]
> >regards
> >caridy

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Neil Smith [MVP Digital Media] - 13 Oct 2004 11:53 GMT

Now that *is* more of an odd result, it should be able to keep up.

When you say streaming, do you mean from the encoder, or from a file
on your PC ? Also, how much other network traffic was hapenning on
your wifi network - is it reproducible with nothing else downloading ?

Cheers - Neil

>When I was receiving 225kbs video streaming with Wi-Fi on Dell Axim X30, I
>experienced frequent display interrupt due to buffering.
[quoted text clipped - 42 lines]
>> >regards
>> >caridy

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Caridy - 13 Oct 2004 16:54 GMT

Hi Neils:

I was exposing a critical coditions, but I was testing from a default
profile to PPC in WME9 until a custum profile at 1mbps bitrate and in all
cases I was expected the same problem, the player stop before 3 minute, and
I have to click on Play bottom again to continue with de streaming, the
interesting thing is that the player don't report buffering o another
problem.

I was using the same PPC that "TSK" (Wi-Fi on Dell Axim X30) and my wifi
network have a minimun traffic.

And I was testing with a PPC to check the wifi, not to compare the
performance with the PPC, and the wifi was well in this case.

Any Idea?

Thanks,
Caridy

> Now that *is* more of an odd result, it should be able to keep up.
>
[quoted text clipped - 50 lines]
> >> >regards
> >> >caridy

Reply to this Message

Neil Smith [MVP Digital Media] - 13 Oct 2004 17:19 GMT

>Hi Neils:
>
[quoted text clipped - 4 lines]
>interesting thing is that the player don't report buffering o another
>problem.

I am having difficulty understanding your english description ;-)

Anyway - my suggestion if you want to try this, is to make an encoding
profile using 225kbps (default) then slowly increase the bitrate, lets
say to 400, 600, 800, 1mbps until you observe buffering. This will be
the maximium bitrate that your device can handle.

Hope that helps - Cheers, Neil

>I was using the same PPC that "TSK" (Wi-Fi on Dell Axim X30) and my wifi
>network have a minimun traffic.
[quoted text clipped - 64 lines]
>> >> >regards
>> >> >caridy

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Caridy - 13 Oct 2004 21:21 GMT

Hi Neils:

Sorry about my english :-|
The problem is that using the default profile, the problem persist (wmp9
stop the video), exactly with the same patron that when I was using a 1 mbps
profile, and don't report any buffer error, or nothing like this.

Thanx.
caridy

> >Hi Neils:
> >
[quoted text clipped - 82 lines]
> >> >> >regards
> >> >> >caridy

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TSK - 13 Oct 2004 23:27 GMT

I mean that streaming video over the Internet from server with 265kbps. I am
using 'WMProfile_V80_256Video' system profile to streaming live video. When
I put PPC on the cradle, it displays video well. I found later that PPC uses
desktop LAN instead of PPC Wi-Fi. As soon as I take it out from the cradle.
It stops displying video due to buffering.

Neil, do I have a problem on wirless bandth? However my notebook with D-Link
Xtreme G Wireless Notebook Adapter works find. How can I check the upload
and download speed for PPC?

Caridy, I agree with Neil that you cannot expect smooth video display for
1mbps video streaming.

Thanks,
TSK

> Hi Neils:
>
[quoted text clipped - 104 lines]
> > >> >> >regards
> > >> >> >caridy

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Caridy - 14 Oct 2004 04:50 GMT

Hi TSK, I was searching documentation about this problem, and testing, and
the problem start when I hand up the X30 PPC without power cord.
And then I found some peoples with the same problem and the same patron
(streaming video over wifi).

Any idea?

thanx
caridy

> I mean that streaming video over the Internet from server with 265kbps. I am
> using 'WMProfile_V80_256Video' system profile to streaming live video. When
[quoted text clipped - 77 lines]
> > pick
> > > >> >> up 1mbps reliably over WLAN, regardless of the actual ratings of

> the
> > > >> >> 802.11b chipset and AP.
[quoted text clipped - 49 lines]
> > > >> >> >regards
> > > >> >> >caridy

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Wilson - 23 Apr 2005 17:53 GMT

I have the same problem. I'm using Dell X50V. I think it is the problem of
adjusting buffer size. Is there any idea in adjusting the buffer size of WMP
of PPC?

Wilson
From Hong Kong

> Hi TSK, I was searching documentation about this problem, and testing, and
> the problem start when I hand up the X30 PPC without power cord.
[quoted text clipped - 157 lines]
> > > > >> >> >regards
> > > > >> >> >caridy

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