[vdr] Re: vdr 1.1.X and mencoder

[ma.hoff@t-online.de (Martin Hoffmann)]

Mhh, i guess there are several attempts to solve this:

(1) one could change mencoder source the way, that it always uses MPEG 
Demuxer, thus maybe no backward seeking in the stream is needed !

(2) Maybe we could use some kind of buffering for the pipe: cat *.vdr | buffer 
| mencoder - but i'm not really sure, if mencoder can seek back within the 
size of the buffer - since it's still a pipe :-)

(3) If the problem is that the source stream always has to start with an 
i-frame to make mencoder "happy", maybe we could create a fifo and then make 
a little program that reads as many bytes from this fifo, until the i frame 
starts, then gives this fifo to mencoder (so, no back seeking needed!):
cat *.vdr | i-frame_seeker | mencoder 

(4) Always Cut the recordiung before conversion ...

So, i guess (3) is the most useful method, if one knows how to write such a 
little tool !

Some comments, please !

Martin

> On Friday 27 September 2002 22:03, you wrote:
> > Hi,
> >
> > grrrhh - I wrote some nonsens:
> > > I don't understand the difference between reading from
> > > file and reading from pipe. If mencoder does seek
> > > operations on the input file, why it accepts the bad file
> > > directly but not from a pipe?
> >
> > What I mean is:
> >
> > If mencoder does seek operations on the input file, why it
> > accepts only good files from pipe?
> >
> >
> > Bernd
>
>  As you said ;o), from a pipe you become a stream of data, where mplayer
> can't seek in, because it's a stream



-- 
Info:
To unsubscribe send a mail to listar@linuxtv.org with "unsubscribe vdr" as subject.