also what resolution do you want it at

bboy_sonik Wrote:blessedhands, I think MeGUI ignores audio stream completely and u have to Mux it into the output MP4 with MP4Box

With MeGUI, you have to encode the video and audio seperately. MeGUI isn't really a 1-click encoder designed for user friendliness like XviD4PSP is. You have to do everything separately, like you would need to if you were using the CLI encoding tools without a front-end. So yeah, harder to use, but allows more customization.

About muxing. If you don't like using MP4box through the command line, in MeGUI, go tools-» Muxer-» MP4 Muxer. That will give you a really smple GUI for MP4Box. Or you can go download YAMB (a more advanced GUI) instead.

bboy_sonik Wrote:...I am uploading it to rapidshare right now and will update this post with a link to the original video. Thanks heaps I would love for you to do some comparrisons for me! :D

Movie looks pretty awesome. You just successfully made me want to watch it. :)

bboy_sonik Wrote:Ah, so CQ IS better than any 2-Pass bitrate based encode - but the end filesize is unpredictable right? Now I see... sorry to you too Zinga :( forgive me for I was ignorant but now I see the light.... :D

He (Zinga) was actually talking about Crf. (CQ = Constant quantizer. Crf = constant Rate Factor, aka Constant Quality)

As for CQ vs 2-pass and Crf, I personally prefer 2-pass. CQ will make everything the same quality (bitrate varies a lot). CBR will make everything the same bitrate (quality varies a lot). 2-pass and crf are more compromised, and somewhere between CBR and CQ. So CQ will give you a more "consistent" encode, while 2-pass and crf will give you a more "efficient" encode. Depends on your preference.

bboy_sonik Wrote:yeh wee all take same file and try and make it the same size as the other with our own encoders
see what turns out best

Also, has to be a low bitrate. Because for a high one, you probably can't tell the difference between the encodes.

And if wee really want to have a competition, PSP probably isn't the best medium to compete for, since it's rather restrictive, both in screen size and encode settings.

But that's beside the point I guess. Since this was originally about encoding for PSP...

(This post was last modified: 08/11/2008 05:31 AM by Assassinator.)

squee666 Wrote:yeh wee all take same file and try and make it the same size as the other with our own encoders
see what turns out best

If anyone still cares about this stuff at all (probably not). Heh.

Download Link

960x400. Same size as the bboy's one, 18.3MB.

(This post was last modified: 18/11/2008 09:37 AM by Assassinator.)

(This post was last modified: 04/12/2008 08:30 AM by Shadarr.)

bboy_sonik Wrote:All good man, don't bother yourself there are much more important things for you to worry about im sure :)  But yes it's the "original". I just wish I could find that website that has all the AVC 1080p trailers on there then i coulda given a direct link, I shoulda added it to favorites *IDIOT*...

Actually, I don;t think it's the original. Open it in a hex editor, and search x264, you will find the x264 settings used for the encode. So it was encoded with x264, and so I kinda doubt was the original.

bboy_sonik Wrote:Nice! I honestly can't see a difference in quality, except the scene where he's looking at the bed and the camera pans behind him, there is a little bit of "fuzzyness" on his jacket - that might just be me though. Using Cyberlink AVC decoder by the way, the one that comes with PowerDVD [mainly cause it gives me hardware/GPU acceleration].

Repeated myself again.

But this is only 1-Pass, correct? So encode time would be a LOT shorter than my current 2-Pass VBR preference! I am truley impressed, and I have been enlightended :) Could you share your settings with us?  :)

Sry about late reply. Kinda forgot about this thread. Only noticed it when Shadarr posted and pulled it to the top again.

This one was actually 2-pass, in order to match your size (since a few people above were saying about doing it at the same size).

As for the settings, I also kinda forgot. (Don't have the file with me any more). But probably something like this:

x264 --crf "something" --ref 12 --mixed-refs --no-fast-pskip --bframes 6 --b-adapt 2 --b-pyramid --weightb --direct auto --deblock -1:-1 --subme 8 --trellis 2 --psy-rd 1.0:0.5 --partitions p8x8,b8x8,i4x4,i8x8 --8x8dct --me umh --merange 24 --threads auto --thread-input --progress --no-psnr --no-ssim --output "output" "input"

So yeah, very high settings. Because the trailer was short, and I had the time anyway. If you want to encode a 100min movie, you may want to use faster settings that won't take you absolutely ages. Lower subme, lower merange, lower number of refs and bframes's, trellis mode 1 instead of 2, and you should get decent speeds.

For anime, you'd want more ref frames and b frames than for real life content.

(by the way, if you got my file, you can look at the x264 settings by using a hex editor and searching "x264". Should be somewhere at the start of the file).

Shadarr Wrote:Assassin, yours seems to have more detail/sharpness; but at the cost of artifacts, namely Gibbs Effects ('mosquito noise') and macroblocks. I actually find the blocks odd, because you state you use a mostly quantized form of compression.

Probably due to the psychovisual rdo I used. Yeah, I tend to favor detail. Encoding in the fansubbing scene for a while probably taught me that.

That was actually a filtered encode. I went and did a bit of (mild) denoise on the original. So there is probably even more noise (and most likely also detail) previously in the original.

Also, my filtering and encoding style would depend on the size and time constraints. I though that the length of a file isn't too tight a fit for the desired filesize, so I did what I did. If I was aiming for 5MB file size instead, then it'll be heavy denoise/smoothing and no psy-rdo, and would result in something much more smoothed out.

(This post was last modified: 04/12/2008 02:28 PM by Assassinator.)

bboy_sonik Wrote:Yeah, it was encoded with MP4Box.

Muxed with MP4Box. MP4Box doesn;t encode anything. It just multiplexes stuff into the MP4 container.

bboy_sonik Wrote:One problem with that video - I can't play it on the PSP! It's not in an MP4 container and the resolution is way too high! This was something I was interested in if you forgot - having AVC encoded videos that are decent for both PC and PSP playback. I know that the Level 3 Profile isn't the most effective capability, but surely AVC even at PSP compatible settings would still give better compression/quality than the current "standard" or "norm" for videos - XviD/DivX?

Should be able to give much better results than XviD/DivX.

For PSP, max number of ref frames can't exceed 3 I think.

Assassinator Wrote:You rotten cheat! LOL! Haha kidding... seriously though, I used no filters at all [apart from "resample with Lanczos-3 method" of course] as filters are technically externel to the encoder process as far as I know [if you've used VirtualDub a lot you'll know what I mean by that]. But yeah, some encoder programs have support for filters added in - still, that is part of the software ;)

I don't use any front ends for filtering. I write avs scripts using notepad. So I obviously know that filtering is not part of the actual encoding. But I do consider it to be part of the "encoding process", the whole process would be the whole lot from turning your source into your output. + what's wrong with filtering?