dvd rip better than original using Xvid?

[bmok]

A coworker's husband told me he rips a dvd and re-encodes it in Xvid in a higher resolution and the resulting movie is much better than the original. Is that possible? What part of Xvid does that? Is it like the good old line-doubling technique being employed here? The husband said he hooks up his computer to his projection tv through the VGA port, no HDMI, no DVI. It seems to make sense but is it really true? I'm gonna see with my own eyes this weekend.

Anybody knows this process pls share. Thanks.

[hech54]

A coworker's husband told me he rips a dvd and re-encodes it in Xvid in a higher resolution and the resulting movie is much better than the original. Is that possible?

No.

[redwudz]

Yes, it's magic.

It might look different or even better to someones eyes, but any re-encode will lose some quality, never gain it.

Sometimes a little bit of selective filtering will make a video 'look' somewhat better, but in reality improving the quality by re-encoding only works on TV shows.

[Noahtuck]

You've gotta be F'n kidding ?!?!?!



Ask him this... by encoding a 720x480 video to say.... 1440x1080... where exactly did he get the extra video info to fill in the missing info with this increased resolution conversion ??

You can't just pull something outta thin air that never existed

[bmok]

a member at doom9 has this reply: "I see many people upscaling video when they rip DVDs, insisting that the quality is better that way. The only reason this is true is that they're using high quality software scaling during the encode, and comparing that to playback of the native resolution being resized on-the-fly by the video card, which often uses questionably low quality methods. The codec (in this case xvid) is immaterial.

If you have the luxury of playing back using a PC (which your coworker's husband has), anything he can do to improve the quality of the encode can be done just as easily (*) on playback with the native resolution. In this case, upscaling your encodes is an absolute waste of disk space.

(*) Some postprocessing is so CPU demanding it can't be done in realtime, but if you're talking about high quality software scaling and most other typical types of postprocessing, it can be done in realtime."

Of course you can't get something out of nothing but in video, there're all sorts of technique to improve pic quality. That's why I asked if there's some line-doubling technique in XviD. It's not magic but some smart mathematical algorithm can smooth things out for example. Heard of anti-aliasing?

Anyway, I've been thinking of using a pc that opens many possibilities. Now I'm looking for some scaling software instead of codec.

[bmok]

More reply from the same guy:
I use MPlayer on Linux, which has a number of good software scalers. I'm sure others will be able to recommend something suitable for Windows (which is the platform you're asking about, I'm assuming).

[yoda313]

You've gotta be F'n kidding ?!?!?!



Ask him this... by encoding a 720x480 video to say.... 1440x1080... where exactly did he get the extra video info to fill in the missing info with this increased resolution conversion ??

You can't just pull something outta thin air that never existed

Ditto! Enough said. Subject closed.

[KBeee]

You've gotta be F'n kidding ?!?!?!



Ask him this... by encoding a 720x480 video to say.... 1440x1080... where exactly did he get the extra video info to fill in the missing info with this increased resolution conversion ??

You can't just pull something outta thin air that never existed

Course you can - I've seen CSI.....

[Rauli]

I have encoded 320x240 high bitrate wmv to dvd resolution using a lossless codec before encoding to mpeg2 using a standard lancoz filter in virtualdub. Made for far better quality in dvd playback than leaving to a lower resolution supported by dvd or resizing without a filter but otherwise there is nothing to boast about. I think this guy is worked up over nothing.

[träskmannen]

and the resulting movie is much better than the original.

Yippee! All B-cups become C-cups, the hero's annoying sidekick is deleted, all rap is removed from the soundtrack and nobody will ever make a sequel to it that sucks...

[StealthKing]

It goes against the laws of Physics.

[Supreme2k]

I canna change the laws of Physics, laws of Physics, laws of Physics.


I was going to make an 8" loaf of bread, but I rolled out the dough flat, and it was way bigger and better.

...except it was more of a giant cracker then.