[gst-devel] Problem of transporting the ts stream over WLAN802.11

[Javier Gálvez Guerrero]

Hi there,

A few questions about this topic:

- You are streaming unicast flows, aren't you?
- Have you check that all packets (#seq. numbers) are both sent and received
in the wireless environment?
- Have you tried applying different codecs and/or using different players
such as VLC or gst-launch itself to check it is not a player issue?
- How your wireless environment is set? Mode (a/b/g/n/(+e)), QoS mapping,
beacon interval, channel uniqueness, adaptive bit rate selectio?


Regards,
Javi

2009/5/28 Zhiqiang Liu <liuzq2002 at 126.com>

>
> Hi ScreenName01,
>
> Thanks for your help:-)
>
> The "ideal environment" refer to transport the udp packets in the wire
> communication. In this case, The possiblity of losing the packets is very
> small.
>
> There seems to be no encryption problem since we can send the raw mpeg
> streams over the air to the target and play on it.
>
> It's really an unusual problem since we know that the the underlying medium
> is hidden to the protocol. The only possibly problem can occur in the MAC
> layer. The WLAN may lose some packets (About 10% packets are lost). But in
> the wire communication almost very packets are delivered normally. The
> problem may be related to the ts stream format. That's because it may be
> hard to play an ts stream when some packets are lost.
>
> Thanks for your suggestion. I will try to analyse
> the traffic using wireshark.
>
> I would like to keep in touch with you. When we get any progress, I will
> contact you.
>
>
>
> Best regards,
>
> Zhiqiang Liu
>
> ScreenName01 wrote:
> >Hi Zhiqiang,
> >
> >  I'm unclear of what the problem is.  What is an "ideal environment" for
> >instance?
> >
> >  The underlying medium -- be it ethernet or wifi -- is transparent.  The
> >medium is hidden to the protocol and is handled by the OS in most cases
>
>
>
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