Unfortunately no one can be told what fun_plug is - you have to see it for yourself.
You are not logged in.
Still try to figure out why I have choppy video when playback 1080p mkv video reside on DNS323.
--My HW setup:
DNS323 on router (WRT54G); several PC and an imac on the same router, some wired, some wireless, and also has power ethernet (homeplug Netgear xvab101).
.SW on DNS323: fun_plug 0.3, Samba file sharing;
.SW on PC: XP and VLC
--The symptom
.on XP that's connected to router with hard wire, no problem for playback 1080p mkv file on DNS323;
.on the same PC using wireless -- choppy video -- prompt me to suspect that wireless link is not up to speed, thus the next test
.on the same PC using power ethernet (xvab101), still choppy video even diagnostic shows that I got close to 91 Mbps.
.on an iMac, using the same power ethernet adapter, no choppy video at all, even though it's in another room with lower speed (90Mbps).
I wonder what's causing the difference between mac playback and XP playback on same file over same type of connection ?
Any suggestion ? I'm running out of ideas.
Last edited by fsong1169 (2009-11-29 05:57:07)
Offline
Can your machine support playing 1080p mkv video locally (internal HD) without choppy video? VLC doesn't use the video card GPU so it's heavily reliant on using the CPU for video playback. That could be the problem or one problem.
Are you using VLC on the MAC or something else playing .mkv video over the network?
Offline
klipko wrote:
Can your machine support playing 1080p mkv video locally (internal HD) without choppy video? VLC doesn't use the video card GPU so it's heavily reliant on using the CPU for video playback. That could be the problem or one problem.
Are you using VLC on the MAC or something else playing .mkv video over the network?
It does make sense, maybe his computer can't handle it.
Offline
klipko wrote:
Can your machine support playing 1080p mkv video locally (internal HD) without choppy video? VLC doesn't use the video card GPU so it's heavily reliant on using the CPU for video playback. That could be the problem or one problem.
Are you using VLC on the MAC or something else playing .mkv video over the network?
The PC plays 1080p file that's stored on DNS323 fine when PC is connected to router through RJ45 wire. I used VLC on PC (Q6600, 4GB RAM, Nvidia 7600GS-which should be plenty for 1080p playback). However, I got choppy video through wireless G connection or power ethernet connection (even when both power ethernet adapters are in the same room as the router).
On MAC I also used VLC for 1080p playback. It plays fine with the power ethernet connection, whereas the PC that used the exact same connection can not play back smoothly.'
I really runs out of idea.
Offline
did you fix this? or still choppy video?
Offline
I can think of two things: packet loss or MTU. You can achieve good download throughput even with high packet loss, but this is more damaging for video. Try in a command prompt:
ping –l 1300 –n 1000 addressOfYourNAS
At the end you will have statistics on packet loss.
An MTU mismatch could harm too if the packets need to be fragmented. The best really is to run a packet capture software (wireshark) and observe the difference. If you want, you can do the capture and I can look at them for you.
Offline
Ethernet over Power and Wifi (even draft-N) are notorious for not delivering consistent 1080p content. I guarantee it's not your DNS-323 that's bottlenecking you. You mentioned that the file plays fine over power in another room. That suggests to me, as already stated above, that you're seeing less packetloss in that room despite what your connection speed is showing.
When you get down to it, wired ethernet is the only way you're going to see 100% consistent playback of 1080 video, no matter the compression. Wireless and power simply aren't good enough for it.
Offline
No, that's not quite true. I stream HD content over wifi regularly and it works fine. It certainly depends on the bitrate and client. Have you tried another client on the PC (WMP, or any one with a bigger buffer than VLC)?
Offline
What I said is wifi doesn't have the bandwidth to consistently play 1080 content without flaw. If you start saying "Oh but it sometimes plays at this bitrate under these circumstances" I would say my statement is still valid.
Wifi just isn't there yet. There's some interesting tech in the pipe though that's designed with HD content in mind though. Should be seeing the first of it later this year. And here I just upgraded to 802.11n...
Offline