Creating MP4 for Quicktime 6

[Cokes]

Take a look at new Roberto Amorim's compile of Psytel 2.15 encoder at http://www.inf.ufpr.br/~rja00/files/AACenc-mpeg4.zip :

DivX 5.02, no B frames, no Qpel, no GMC, AAC created with -normal profile , MP4 stream authored with mp4UI: plays great, picture somewhat washed out colours and blended.

DivX 5.02, with frames, no Qpel, no GMC, AAC created with -normal profile , MP4 stream authored with mp4UI: plays choppy - it's like QT6 doesn't interpret B frames, picture quality same.

[Neo Neko]

Hmmmmmmm. If you got it to work with Divx stripped down like that then Xvid should work as well. But I have yet to get it to do so. All it will do is the audio. :(

[neo_sapien]

w00t. DivX 5.02 video w/b-frames and AAC audio. not that 32khz QT6 crap AAC, either, the real deal. It's playing fine in wmp4player, and plays with a few errors in Quicktime 6. If you enable "high quality playback" in Quicktime 6, the errors go away, but it's still a little choppy. it's under movie properties, in the video track.




EDIT~To be more specific, it's working for me.
DivX 5.02, with frames, no Qpel, no GMC, AAC created with -0.100 quality, MP4 stream authored with mp4UI: plays on QT6 choppy until HQ enabled, some artifacting which is unique to QT6. Plays perfect on wmp4player.

Another test:

44:27 clip, Quick Config CLI:
-b21 538 -psy 3 -key 300 -log "H:\DivX\Unfinished DivX\Season One Disc 6\PROCESSING\1x21\project_538_39966.log" -b -dr 12,2,39966,10,20 -sc 50 -pq 5

WMP4Player: Plays fine
QT6 Public Preview 1: Plays fine, some choppy playback
DivX Player 2.0 Alpha 5: Video plays fine

IMPORTANT: Don't use the DivX MP4 file which DivX 5.02 writes for you. For some reason, that file does not work in Quicktime 6. Rather, build your own MP4 file using mp4UI and your DivX 5.02 video-only AVI.



Thoughts:

This calls for a guide, IMO. For the first time, it's now actually feasible to create working b-frame enabled MP4 streams which will play back. We'll be able to use these streams on a DivX-enabled set-top standalone.

We should get gej to contribute some to the guide, when DXN has gotten to that point. How do we make the MP4 CD readable by a DivX standalone? Will we have to go through the same type of process as making an SVCD, or will it work fine if you just put an mp4 stream in the root directory of a mode-1 CDR? Hopefully they'll implement XCD. It's all speculative at this point.

And to think, I just got finished encoding 3 more hours of TNG to a 790 meg Ogg file. Time to re-encode the DVD to b-frames only and AAC.