[vlc] Re: mpeg2-ts timestamping

[GALAD77]

I would like to be able at playing to set the time the video was
encoded. The time filter of VLC can help a bit, but I need to include
some extra information. The time must not necessarily be inserted into
the video via GDI or something else, but into the MPEG2-TS frame format
in some manner that it can be deencapsulated at decoding.
But as far as I know there is no optional field in MPEGTS with enough
size (say 48 bits) to store the time, for example with a time(NULL) command.
Another way would be to multiplex the data within the MPEG2-TS frame,
but it adds complexity.
Above all, the MPEG2-TS encapsulation standard, or drafts, are a bit
large and difficult to understand, so I have asked for a simpler
tutorial that explains the basics in a clear manner so that acting in
the source code can be more agile.

G.

----- Mensaje Original -----
De: Måns Rullgård <mru at inprovide.com>
Fecha: Martes, Marzo 15, 2005 1:37 pm
Asunto: [vlc] Re: mpeg2-ts timestamping

> GALAD77 <GALAD77 at terra.es> writes:
> 
> > Hello,
> >
> > I would like to insert while encoding a video (with a camera) the
> > current time, so later, at playing, one could see the time the 
> video was
> > captured.
> > Is it possible to insert this time in the MPEG2-TS frame? 
> 
> Do you want to "burn" the numbers into the picture, or are you looking
> for a way to store this information in some other manner?  The former
> is not specific to MPEG-TS, and MPEG-TS has no provisions for the
> latter, unless you use a private stream or similar.
> 
> > I do not find a clear tutorial about MPEG2-TS where it clearly 
> explains> all the fields and their functions. Could someone suggest 
> me one?
> 
> ISO 13818-1 is the definition of MPEG-TS.  There are drafts to be
> found for free, but you'll have to pay to get the final version.
> 
> -- 
> Måns Rullgård
> mru at inprovide.com
> 
> -- 
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> 


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