ITS DO OR DIE!

Banana_Boat · Post by **Banana_Boat** » Fri Jun 24, 2005 3:36 pm

Hey, i have all my anime dvds ripped with DVD decrypter on my pc.
I have the AMVapp installed with all of its components.
Now my question is how to get those files, IFO, VOB etc. to MP4 format.

Help would be greatly appreciated. Thanks!~

Scintilla · Post by **Scintilla** » Fri Jun 24, 2005 4:01 pm

Why MP4? You certainly wouldn't want to try to use MP4s for editing...

narcted · Post by **narcted** » Fri Jun 24, 2005 9:12 pm

MP4 would go into a Playstation Portable.

I don't think you can make .vob and .ifo directly to MP4. You'll need them in their editable video file format first before you can output. I've been playing with Videostudio and its mp4 plugin. Get your video as an mpeg-2 first. Sorry, I haven't used the AMV app yet.

Banana_Boat · Post by **Banana_Boat** » Fri Jun 24, 2005 9:26 pm

Yea, i need it for PSP, thaks guys

Qyot27 · Post by **Qyot27** » Fri Jun 24, 2005 10:26 pm

Aside from getting something specifically designed to transcode stuff to the proper format for the PSP, the process is too complicated for anyone but the most advanced users.

You have to know the proper dimensions to encode to, you have to be able to use MP4Creator's command line functions to properly mux an H264 AVI into the MP4 container (unless you have Quicktime 7, I would assume, but who knows if Apple's H264 implementation is compatible with the PSP), and you have to follow strict (I guess) encoding methods for video and audio to ensure that it will play back. This is, of course, assuming the PSP can only play videos specifically formatted for it.

shirohamada · Post by **shirohamada** » Sat Jun 25, 2005 2:12 am

YAMB 1.2.1 : Yet Another MP4Box GUI

its really not that difficult, though a clueless newbie might not be able to do it.

search doom9

Banana_Boat · Post by **Banana_Boat** » Sat Jun 25, 2005 12:07 pm

thanks a lot guys, ive done it, wasnt really so hard, but now i can enjoy my animes on the go!

Zero1 · Post by **Zero1** » Sat Jun 25, 2005 12:30 pm

IIRC, MP4 for PSP should be Main@L3

Don't quote me on that though...

And as for any would be newbs, please speak to someone who knows what they are doing, it's easy to make b0rked and non compliant streams. Do remember that trial and error is a good thing, but if you try something and it works, doesn't necessarily mean it's correct.

It also helps to know a bit about the inner workings of the codec, what features fall into what requirement (ie, Custom quant matrices and 8x8 intra+DCT fall into the high profile). Get accustomed to XviD, it's different to h264, but it will give you some idea of how things work, but remember, some things can be likened to XviD, others can't. Don't just enter random values either, it could slow you down and adversely affect the encode/playback requirements.

Also, encoding is slow. Sorry to sound so negative, but I hope you have time and patience, I encode on a somewhat regular basis and it takes me somewhere in the region of 4-6 hours to do a 3 pass encode of an episode (from a lossless avi file, so we aren't talking avisynth slowing stuff down). And no, I'm not encoding on a Pentium Pro 100MHz, this is an Athlon 64 3400+, so that gives you an idea just how slow. That said, I tend to use some pretty intense settings, I've had in the region of 20fps in VirtualDub, but h264 in AVI is evil, keep it MP4 people

You'll also need to encode the audio, I don't know for a fact, but will take for granted that the PSP will play videos with mp3, that's fine. If you are creating MP4 files, you might as well take advantage of AAC audio coding, it'll offer you higher quality at the same bitrates. It's said to be approximately 30% more efficient than mp3. Currently the best encoder is Apple's iTunes, followed by Nero. It's most likely the audio you will need to encode will be Low Complexity.

Well anyways, there are a few options, you can do a fresh h264 encode (using x264 or Nero Recode(many more codecs/encoders exist...)) with AAC audio, using Nero or Apple, and mux the files in YAMB like shirohamada linked to or...

Encode your video and audio in virtualdub like you would normally do, selecting XviD and mp3. You must research the mpeg4-asp support for PSP though. GMC, QPEL & Interlaced are likely to be unsupported, or only partially, especially with GMC (oh noes, the 1 warp/3 warp issue comes back to haunt us). Also check on B-frames. The muxer may not support B-frames in mpeg4-asp encodes in AVI container since it's a bit of a hack, and IIRC the frame order is slightly b0rked (I don't know for certain though). Also the PSP may or may not like B-frames, also check the max number of consecutive B-frames, the more there are the more CPU decoding power it requires as a rule of thumb.

Well once you have got your (almost) spec compliant AVI file, you can use mp4box to dump and/or import the streams and make the MP4 out of that (XviD in MP4, just like it should have been

) I don't know how fully featured YAMB is, as to whether it allows you to do as I suggested, the CLI should though.

And I second the notion of checking on Doom9, and don't forget the guides on the animemusicvideos.org homepage

Qyot27 · Post by **Qyot27** » Sat Jun 25, 2005 4:32 pm

Is there anything that can transfer from Matroska to MP4? If there is, then I would recommend that over using AVI, since Matroska doesn't have issues with B-frames like AVI does. And that makes it easier, since VDubMod can write video into Matroska using x264 (or any other codec, but meh).

Banana_Boat · Post by **Banana_Boat** » Sun Jun 26, 2005 8:33 am

great help Z3r01, will definitley come in handy. Ive put Evangelion the movie on my psp so far, 600mb, but pure dvd quality.