Resize 1080p to 720p?

[Venodium]

I've got my hands on some 1080p episodes of an Anime but the files are way too big after converting to something editable without quality loss.
I could probably re-download it in 720p but that would take quite some time...
So I wanted to know if there's a possibility to resize 1080p to 720p, which is plenty enough for me.
If possible the format should stay .mkv to maintain a rather small videofile without bad quality and easy ways to convert them
Would be great if there'd be a way with VDub or VDubMod, but that's not so important

[Venodium]

The 1080p files are in .mkv, too btw

[ngsilver]

The easiest method would be to simply use an avisynth script and spline36resize(1280,720) the video so you now have 720p.

You can basically do the same thing in vdub. Simply apply the resize filter (though I think the best resizer you can use is lanzcos) and resize to 1280x720. Then simply save your clip or full encode in whatever codec you wish to use.

It's really as simple as that.

However, getting an mkv file into vdub is the harder part. Avisynth can do it, but then you don't really need vdub to do the resize anymore.

[Venodium]

I'm not really good with avisynth and Vdub creates the neccessary files to open .mkv itself so I'm good with that

The easiest method would be to simply use an avisynth script and spline36resize(1280,720) the video so you now have 720p.

Is there a tutorial or something for that? Or any other method? Would be awesome

[ngsilver]

read AbsoluteDestiny & ErMaC's Technical Guides to All Things Audio and Video

[Phantasmagoriat]

So you ripped your Official BDs with DVDfab into the .mkv container... sounds like a good method to me...

http://www.animemusicvideos.org/guides/ ... rmats.html

[mirkosp]

So you ripped your Official BDs with DVDfab into the .mkv container... sounds like a good method to me...

http://www.animemusicvideos.org/guides/ ... rmats.html

I'm not sure if you're being sarcastic or what, but demuxing m2ts and remuxing the video stream into an mkv and using ffms2 on that is pretty much the best way to deal with blu-rays (at least if you don't want to spend money on a neuron2 license to use dgdecnv or dgavcdecdi...).
Now, the case at hand might be another thing, but... unno, heh, gotta give what is due.

[Qyot27]

However, getting an mkv file into vdub is the harder part.

http://home.comcast.net/~fcchandler/index.html

Or the DirectShow input plugin that Avery Lee made available on the VirtualDub forums (http://forums.virtualdub.org/index.php? ... 15093&st=0).

fcchandler's is designed from the Matroska spec and retains keyframe positions from the source stream. The DirectShow input plugin makes every frame a keyframe, and obviously uses DirectShow as the interface, relying on whatever DS-based MKV splitter you have installed.

Obviously, these only work with versions of VDub supporting the input driver system.

[Phantasmagoriat]

So you ripped your Official BDs with DVDfab into the .mkv container... sounds like a good method to me...

http://www.animemusicvideos.org/guides/ ... rmats.html

I'm not sure if you're being sarcastic or what, but demuxing m2ts and remuxing the video stream into an mkv and using ffms2 on that is pretty much the best way to deal with blu-rays (at least if you don't want to spend money on a neuron2 license to use dgdecnv or dgavcdecdi...).
Now, the case at hand might be another thing, but... unno, heh, gotta give what is due.

Sorry, I'm not being sarcastic about the method.
In fact, that's precisely what I do .
But I am being sarcastic because it's clearly not what the OP did

[Mister Hatt]

There is no good way to handle BD ripped AVC in MKV unless it is progressive and you are very lucky. FFMS2 has a lot of issues with it still, although less if you use straight linear seeking. In fact linear seeking and just letting it run on progressive material at least will usually come out almost perfect. The current preferred method I guess is to use something like JM as I do, or to otherwise bend over for neuron2 and buy a license for dgavcdecdi. Note that JM is low as all shit, but at least you have your dignity and anal e-virginity.