QuickTime 7 and MPEG-4 ASP

i didnt bother to find the maximum, but this is working every time (copy/pasted from my batch): xvid_encraw -i "%inpdrive%%inppath%%avsname%_%inpname%%avsext%" -type 2 -bitrate %bit% -quality 6 -pass1 "%inpfullnoext%" -o pass1.m4v xvid_encraw -i "%inpdrive%%inppath%%avsname%_%inpname%%avsext%" -type 2 -bitrate %bit% -quality 6 -pass2 "%inpfullnoext%" -o "%inpfull%.m4v" btw, there is 'free' vp6 solution explained here: related thread

till now quicktime never supported asp. can someone confirm that it now handles, b-frames, qpel, gmc and mpeg/custom matrices?

Well, it's definitely not a truly ASP compliant decoder. I can't seem to get it to play ANY XviD encoded MPEG-4 smoothly. Even pure SP, with no b-frames, no QPEL, CBR @ 700kbit, h263 quant, etc etc. Maybe there's something wrong here :) I'm forcing MP4V FOURCC just in case [edit] This was using xvid_encraw through megui. I switched to good old VFW and got smooth playback with these settings. Working my way up to full ASP, and seeing when it breaks :) [/edit] ~MiSfit

Okay I got everything figured out. QuickTime 7 (at least 7.1.5) is not ASP compliant. It is only SP compliant. This means no B-frames, no qpel, and no CQMs. So it seems the situation is unchanged from QuickTime 6. If you follow these rules, it will still play MPEG-4. I'm going to do some Wikipedia editing tonight... Oh, and my xvid_encraw problems are quite simple. There's a known bug with MeGUI and xvid_encraw. When you specify 0 b-frames in MeGUI, it does not directly pass that to xvid_encraw, as it (incorrectly) assumes the default is 0. The default is in fact 1, and as such MeGUI cannot presently make xvid_encraw encode without bframes (without tweaking the command line). I ran into this awhile back trying to do a similar procedure, except I was targeting an iPod. Too bad Apple can't get it together to write an ASP decoder :( H.264 is too damn slow on most average Windows PCs through QuickTime. ~MiSfit

I did not try but most likely this QuickTime component would give whole ASP range. if not then there is also a DivX one.

SeeMoreDigital, link to some exampels is in your PM.

SeeMoreDigital, ...: 1st: this are mp4 files muxed with mp4box and they have .mp4 extension (how did you get your .mov?). 2nd: they do play on every version of qt7 i have tried. so my guess would be that you are on some strong mushrooms or.. ?

Thanks for the confirmation. I looks as though yesterdays QT7 update has taken over some settings because when I downloaded your samples I got this: - That said, non of your Xvid (MPEG-4 Part-2) in MP4 samples are ASP.... They are all SP ;) Cheers