[MEncoder-users] How to repackage MP4 files to avi container?

[Grozdan]

On Mon, May 17, 2010 at 4:37 AM, Miroslav Rovis <m.rovis at inet.hr> wrote:
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> Hi everybody!
>
> Here's a little avi2mp4.sh script of interest, I hope, to newbies
> (newer than me):
> No guarantees of any kind. Backup before you try!
> - ---------------------------------------------------------------------
> #!/bin/bash
> # avi2mp4.sh
> v1=`echo $1 | cut -d '.' -f1`
> MP4Box -aviraw audio $v1.avi
> MP4Box -aviraw video $v1.avi
> mv -iv ${v1}_audio.raw ${v1}_audio.aac
> MP4Box -add ${v1}_audio.aac $v1.mp4
> MP4Box -add ${v1}_video.h264 $v1.mp4
> - ---------------------------------------------------------------------

you forget an important parameter. The -fps option in mp4box which it
defaults always to 25 if not set, so if you have files with a
different fps and don't pass it to mp4box, they'll be very out of sync

Also, there are various scripts on the net that can do what you
want... for example

http://forum.doom9.org/showthread.php?t=133598

http://h264enc.sourceforge.net/

> So if anybody has avi files with h264/aac audio/video streams encoded
> with mplayer  (huh, mencoder, which is a different program)...
> And if they don't want to keep their avi files, having learned they
> would rot by the passage of time...
> Which is a phenomenon strange and induced by some agent as yet
> unbeknown to scientists, but the said process of rotting probably
> occurs due to their totally hated and defective M$ programmed nature
> prone to (it's no secret, noone can deny it) viri...
> Argh, well, this scriptlet just takes one argument, the name of the
> file with the above described audio/video streams, and produces the
> mp4 blessed container file, which is rotproof! No viri - no swine flu,
> no AIDS, no rotting, nothing.
>
> Pls., it's good natured teasing, don't take offence.
>
> And if anyone knows of a good tutorial on subtitle ripping (or
> whatever it's called), pls. paste the address upfront to this mailing
> list! Pronto! So everyone can learn and switch to Matroska!
>
> I have some TV (free-to-air, legal, this is just a note to the
> Croatian secret service guys, those who follow NGO's critical of the
> goverment in Croatia, a country of the neocommunist bloc that secretly
> joins forces with Erithrea, North Korea and of course China in their
> plans to hack, attack, and destroy Google and the rest of the free
> media)...
> I have some TV footage taken with my old Vista (I also have and like
> better the Hauppauge HVR-4000 on my Gentoo) with Hauppauge HVR-3000 in
> FILES*.ts (transport stream) files, and some have subtitles in'em...
>
> Time is not on my side...
>
> Thanks for the prospective and forthcoming help. 'Scuse the ramble if
> you dislike it... I'm just a man who could end up innocent in jail
> after the bolshevik style trial in which I was sentenced to four
> months pending higher court approval of the sentence and pending my
> not being totally obedient for two years to idiotic restraints imposed
> on me.
>
> May God spare the world from neocommunism and from any kind of related
> or unrelated totalitarianism!
> Miro
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