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newWang
12th February 2008, 16:15
Hi everyone!
This is my very first post here.

I'm currently exploring the use of the following system as a HTPC along with a Sharp 32" LCD TV at 1280 x 720p.

Windows XP SP2/ Linux Mint Cassandra (Ubuntu Fiesty) Dual-boot
Pentium 4 2.26 GHz
256MB PC800 RDRAM (why is it so expensive?)
Nvidia Geforce 4200 Ti 128MB -->DVI-HDMI cable --> TV

I've been experimenting with deinterlacing and upsizing 720 x 480 DVD content to 1280 x 720p (at NTSC 30 and 60 fps). I already had guessed that my system would be too weak to play the resulting video stream encoded with MPEG4 AVC and ASP; this turned out to true. I've tried MJPEG at quality=100 this resulted in less than realtime playback at 60000/1001 fps; I haven't yet looked into MJPEG at NTSC 30 fps.

The reason for my post is that I wondering what other fast decompressing codecs there are out there that might do the trick. I probably just need another system. : - (

What codecs would you recommend?

Regards,
newWang

newWang
13th February 2008, 16:44
I found this link for myself.

Lossless Codes Comparison 2007 (http://www.compression.ru/video/codec_comparison/lossless_codecs_2007_en.html)

cogman
19th February 2008, 03:50
You system should be able to handle AVC standard video (just not HD). If I where going to re-encode the video, I would use AVC but keep the original resolution. Up sizing should be done by the decoder, not the encoder.

After that, it really all depends on what filter you want to give a go. If you are using windows, the ffdshow-tryouts is probably the best way to go and I really like the Spline36 filter. If you are using linux, Mplayer is usually best, however I am woefully unacknowledged on how to change the method used in changing resolutions.

But again, encode your movies at SD then up size them as part of the decoding process, not vica versa. If you do it the other way around you basically just waist space and processing power (it is much easier to run a resizing filter on encoded film then it is to decode film that has been upsized with the exact same filter)