A note about many xvid in avi files in the wild, alot of them use a nonstandard "packed b frames" thing, which hides b frames with p frames. The N900 doesn't see the b frames and playback is approximately 1\3rd to one half of "proper" framerate.

ive just tested both mplayers.... KMplayer runs more smoothly than SiB with what ive tested.

SiB on some video that was running poorly on the N900s default player can be slightly jittery, its not bad, but does fall behind KMplayer in quality. KMplayer seems to have no problems, the same video plays flawlessly. i havent fully tested KMplayer and SiB with video audio yet, to see if most videos im testing stay in synch till the very end. Ill need to convert some long videos to test

Maybe so, but its much easier to get a smooth consistent frame rate on Windows and you find far fewer video files that have problems.

Its not uncommon for VDPAU to break on some files and certainly when you start trying to deinterlace 1080i files, its often really really hard to get it to work properly where on PowerDVD on Windows "it just works".

As I understand it though, because mplayer is heavily optimised for CPU playback they hit a big snag when dual-core came out, as mplayer is optimised for single-core CPUs. It relies on knowing exactly what is going on in the CPU cache which means no multi-threading, as you spread the load over multiple cores that way but cannot optimise to the same degree so it would have far far worse performance on single-core machines than it does now.

Its not that mplayer is bad by any means, its my preferred player on Linux, but its optimised to do things one way and as VDPAU is relatively new I think its still somewhat in catchup mode. I hear the latest development version now plays Blu-ray as long as its already been decoded/ripped to the HDD, so its certainly getting there. But there a lot more scope for things to go wrong than on Windows as things like VDPAU can break unexpected and without you realising what has happened, whereas on Windows if anything like that broke generally the whole system would stop working. Its both a blessing and a curse that Linux sometimes tried to go on even when something is not working quite right.

If I am watching K900 videos which are being sent to my TV via the audio/video lead I received with the phone.. can I switch off the N900s own screen, since at this time only the tv screen need to be showing the video, and not the mobile screen?

I prefer using KMPlayer as it gives a better frame rate than both the default one built in and SiB, although I guess if KMPlayer does not allow the screen to switch off and still play the video, its not possible? Unless the phone itself has a similar screen switch off, whilst still playing the video with no problems-anyone know?

I was thinking if the N900 cant make the screen go into "sleep mode" whilst still playing a video file, it would be a handy tool to install if someone made an installable unofficial version

FYI
KMPlayer is just frontend. Default setting for that player is to use offical mediaplayer (hw accelerated) but it can also use external mplayer.

any ideas on how to turn the N900s screen off whilst watching the output (eg a video) on a connected TV? theres no point having both showing at once.........

try this video ^^
http://www.megavideo.com/?d=O365TEB4
its Boa - Energetic
I converted it
thats the one only one English..
I converted a lot of videos.. but they are Korean MV
I also converted Movies.. but I dont upload it
all my videos play really smooth and really high quality..
so just test it out~

and that video detail is here

Encode to File Format: MP4
Use Video Codec: MPEG-4, 800:432 (16:9), 9600kbps, 30 fps
Use Audio Codec: AAC LC, Stereo, 256 kbps, 44100 Hz

Converter by Shini

if you want to download Korean MV for N900 go to my Korean blog
http://blog.naver.com/lrb1000
no id require ^^ feel free to download

Bonus*
http://www.megaupload.com/?d=0MN2JYN1

SNSD - Run Devil Run
Encode to File Format: MP4
Use Video Codec: MPEG-4, 800:432 (16:9), 9600kbps, 30 fps
Use Audio Codec: AAC LC, Stereo, 256 kbps, 44100 Hz

as you can see its different are then Boa MV
just see different ^^ for me I put videos on my 32GB N900
and I put all my music on my 16GB Memory Card
I dont have any lags on Videos or Music playing

[IMG]\YouTube - Jal Jal Ke Dhuan.flv Format : Flash Video File size : 18.2 MiB Duration : 4mn 25s Overall bit rate : 574 Kbps httphostheader : v4.cache5.c.youtube.com Video Format : AVC Format/Info : Advanced Video Codec Format profile : Main@L3.0 Format settings, CABAC : Yes Format settings, ReFrames : 3 frames Muxing mode : Container profile=Unknown@3.0 Duration : 4mn 25s Bit rate : 463 Kbps Width : 640 pixels Height : 272 pixels Display aspect ratio : 2.35:1 Frame rate mode : Constant Frame rate : 29.970 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.089 Stream size : 14.7 MiB (81%)[/IMG]
i need help on this ,up there is the detail of video song i tried to play ,at first it was okey but on the day 3rd ,when i played again n again ,video was too lagging behind ,dont know if thats a pixel issue or what ? any help would appreciated .

n900 can't play youtube videos even with extra decoder support. I have the same problem, it still does not have a solution.

Also, I might add that this thread is pretty old.

i typed here cuz i dont know how to start a new thread and 2ndly i thought may be there will be any solution on this page ,OLD PAGE.