[MEncoder-users] Add Timed text into mp4 with mp4box

[Justin Randall]

Alright I'll bite. This is not a good place to ask this question since
it has nothing to do with mencoder as The Wanderer already pointed
out. You might want to check the doom9 forums for good information on
MP4Box http://forum.doom9.org/showthread.php?t=69590

It sounds like it's a non-trivial process, but somebody else might be
able to help you more. Good luck.

http://gpac.sourceforge.net/auth_text.php
Using text streams within MPEG-4 scene description is much more tricky
(is it?). You will add an ObjectDescriptor to your scene as you add an
audio/video object, specifying the file name with the usual MuxInfo.
Note: when using SRT/SUB, make sure you don't have TextNode specified
in the MuxInfo, as this ALWAYS triggers subtitles to BIFS conversion
and not 3GPP timed text.
The second step is controlling the new text object in the same way you
control an audio or visual object. This is currently unspecified in
MPEG-4, but GPAC handles this through the AnimationStream node.
Instead of controlling a BIFS stream, you can start/stop/play the text
stream with this node.

Justin

On 12/15/06, The Wanderer <inverseparadox at comcast.net> wrote:
> 野村亮之 wrote:
>
> > Hi, I'm trying to add timed text into mp4 with mp4box. If I shold
> > post problem with mp4box to other mailinglist, Please let me know.
>
> You almost certainly should. mp4box has nothing to do with MEncoder.
>
> --
>        The Wanderer
>
> Warning: Simply because I argue an issue does not mean I agree with any
> side of it.
>
> Secrecy is the beginning of tyranny.
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-- 
Justin Randall
617.733.4107