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View Full Version : HD XviD Playback Slow - Anyone Else?


JasperKJ
November 12th, 2010, 08:29 AM
I'm having an issue with playback of high resolution XviD (1280x536) and higher files. They're not playing back so smoothly as if it's missing frames or something. Not quite jerky but not smooth at all. Best way to describe it is it just seems a bit slow.

Everything is going across CAT6 network, which I've never had a problem with. SD sized XviDs are ok.

Some basic specs for the XviDs: bitrates are 1319 kb/s and higher, FPS 23.97

MKVs are not an issue. The playback is nice and smooth even with huge 20GB+ files so I don't think it's my network.

These same XviDs playback perfectly when I use my PS3 via PS3 Media Server.

So anyone have any ideas? Is it the Boxee Box itself or some settings I've missed or is it the XviDs not being supported? Anyone else having issues with high res XviDs?

I've tried enabling the "match framerate" setting in the Boxee but that didn't help.

dan2304k
November 12th, 2010, 04:03 PM
I have noticed slow playback (dropped frames) on some, but not all, high res DiVX/Xvid files. My guess is that those particular files are encoded with non-standard/advanced options requiring the box to use full software decompression, rather than hardware assist.

Thankfully, most content I have is now h.264 which plays flawlessly, so this is not a big issue for me.

Perhaps you could try re-encoding some clips with Xvid and various options/profiles in order to identify which is the offending setting.

boman41
November 12th, 2010, 04:33 PM
I have noticed very similar behavior on high res Xvid files. They play slow, and some of them are almost jerky.

I have tried usb hard drive, flash drive, and wireless N with same result.

I don't have any MKV's, so I have not tried them yet.

I have a XBOX 360, and some of these files will cause a slow down every 5-8 minutes that I had attributed to the bit rate.

I have only been playing with the box for a couple of hours, so haven't gone much further trying to resolve the problem. Hopefully there is a resolution.

JasperKJ
November 12th, 2010, 04:42 PM
Thanks. At least I'm not the only one. ;)

I'll try some re-encodes or see if it still happens when I go through TVersity.

backlund
November 12th, 2010, 09:43 PM
I too can confirm that HD Xvid files are stuttering in playback. I have submitted a help desk request and will also attach the media info files here from a few of the files I found that do not work.

TheDoctor
November 14th, 2010, 05:43 PM
Iv noticed this too. The HD AVI files seem to be the only thing choking. Larger files in MKV or mpeg containers work fine.

pcm2a
November 14th, 2010, 06:58 PM
I have th same sci playback issues but only on some shows. I logged a jura ticket with the mediainfo. Maybe if we all log tickets they will fix the codecs?

judgeschambers
November 14th, 2010, 07:01 PM
I have hundreds of Xvid . AVI files. I even make my own all the time and they play perfectly.

The other poster said he has HD .avi files??? How is this an option? Please explain.

As for the codecs, what is the codec shown in MeidaInfo? Can you post the details of mediaInfo so we can see?

As for the jira bug report--post the link to it in your post!


Remember, not matter what, boxee supports GPU acceleration of H264 .mp4 and H264.mkv files only. As well as the codecs and containers listed in the Support section and in my First Stop sig link. Anything else may not play correctly. ;)

pcm2a
November 14th, 2010, 07:42 PM
Here is the link to my avi jira post: http://jira.boxee.tv/browse/BOXEE-6959

I also have thousands of AVI files and I've only hit a few that don't play right.

backlund
November 15th, 2010, 11:58 AM
I've been speaking with one of the engineers about this and he says that they should play fine. I'm going to clip some samples for him and upload them to him tonight.

richy240
November 15th, 2010, 12:04 PM
Yeah, I've noticed this too, which makes about 50% of my local media unwatchable. If one of the engineers (mentioned above) says everything should work properly, one of the engineers (mentioned above) obviously isn't actually using his/her own software.

backlund
November 15th, 2010, 12:10 PM
I should have explained that better. He said that the hardware should be able to handle it, but he acknowledged that it isn't working correctly. One of the other posters seemed to imply that only H.264 content is supported, which is (supposedly) incorrect.

mlamontagne
November 15th, 2010, 01:46 PM
Don't know if this is the same issue, but when I play any video (Online or Local content) I have thin black vertical lines every inch or so. The further away from the tv the harder to notice, but close up you can see the video is being played in strips and between each strip is a very very thin space that causes a black line. I've tried different HDMI cables, two tvs (samsung 40 lcd, samsung 58 plasma) The lines do not show during the boot up graphics or the menus.

backlund
November 15th, 2010, 02:43 PM
Don't know if this is the same issue, but when I play any video (Online or Local content) I have thin black vertical lines every inch or so. The further away from the tv the harder to notice, but close up you can see the video is being played in strips and between each strip is a very very thin space that causes a black line. I've tried different HDMI cables, two tvs (samsung 40 lcd, samsung 58 plasma) The lines do not show during the boot up graphics or the menus.

Like this?

http://www.windowsmoviemakers.net/PapaJohn/54/Interlaced-Versus-Progressive_files/image010.jpg

mlamontagne
November 15th, 2010, 03:02 PM
The lines are vertical and would be top to bottom.

backlund
November 15th, 2010, 03:19 PM
That sounds like a faulty video board. Did you try a factory reset?

mlamontagne
November 15th, 2010, 03:28 PM
I'll try the Factory reset tonight. I was thinking it was a hardware issue with the boxee.

mlamontagne
November 15th, 2010, 11:00 PM
My issue was a defective unit, I exchanged it and this issue went away.

Greystorm
November 15th, 2010, 11:08 PM
One of my files plays very choppily. Sounds like this issue. It was a recording of HD TV that I converted into an XviD. Audio plays fine but the video looks like it's dropping frames.

Happy to provide samples/media info if it helps.