AW: AW: Me TV, playbin, and MPEG streams

[Bernhard Graaf]

Hi Russel,

That's the same way I do, but without decoding/encoding the mp2ts stream
from DVB. Therefore it will be stored in coming format.
The only thing I do is to exclude the stream (pid) of the programmed channel
to hold the HD-Memory as small as I could.
If it's better for you to use mp4, it's you decision.
 
If you want to start with the 'time shift' function, please hold me in copy.
I have already developed this function (in C :-)).

Regards
Bernhard

-----Ursprüngliche Nachricht-----
Von: gstreamer-devel [mailto:gstreamer-devel-bounces at lists.freedesktop.org]
Im Auftrag von Russel Winder
Gesendet: Mittwoch, 19. Dezember 2018 16:34
An: Discussion of the development of and with GStreamer
Betreff: Re: AW: Me TV, playbin, and MPEG streams

Bernhard,

Thanks for chipping in, much appreciated.

> If you want to implement something like time shift, MP4 isn't a nice idea
> for that, because MP4 is written the timing information at last (while
> closing it). Therefore it's not possible to write and read a mp4-file in
the
> same time.
> I'm using mp2ts for that, because the timestamps are written in the
stream.
> Therefore it's possible to jump forward/backward in the stream, while
> recoding it.

I wasn't thinking of pausing live streams as PVRs can do, but now you
mention
it, that is a spiffing idea. I shall add it to the list of things to think
about. I suspect it isn't going to be possible with the current
architecture,
but it is something to think about nonetheless.

The user requirement (*) turns out just to be scheduled recording. In the
spirit of keeping things small and simple I am going to do this as a
separate
application rather than adding things to the live player. This means just
taking the DVB feed and generating an MPEG4 file given a start time and
either
an end time or a duration.

I think this gets round the problem you are describing – though for live
stream pausing the problem is crucial.


(*) Unbelievably perhaps, Me TV actually has users other than me. OK only
about 7, but they keep coming out of the woodwork with requests for things
in
Me TV!

-- 
Russel.
===========================================
Dr Russel Winder      t: +44 20 7585 2200
41 Buckmaster Road    m: +44 7770 465 077
London SW11 1EN, UK   w: www.russel.org.uk