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

Grozdan neutrino8 at gmail.com
Mon May 17 04:52:09 CEST 2010

On Mon, May 17, 2010 at 4:37 AM, Miroslav Rovis <m.rovis at inet.hr> wrote:
> Hash: SHA1
> 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



> 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
> Version: GnuPG v2.0.14 (GNU/Linux)
> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
> UdUAoJxyS9sjkzF1A4J/qfNefAbcbiyy
> =FXLj
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