[mythtv-users] capturing DVB-T MPEG-4 streams
Nick Morrott
knowledgejunkie at gmail.com
Sun Nov 30 22:35:25 UTC 2008
On 30/11/2008, David Watkins <watkinshome at gmail.com> wrote:
> > I'm another Ireland-based MythTV user and hence am in a similar position
> > to Frank. The requirements document for the receivers says that the
> > transport stream is ISO/IEC 13818-1[3] and a video profile/level of
> > ISO/IEC 14496-10[6]: High Profile @ L4.0. Audio will be ISO/IEC
> > 14496-3[7] (HE-AACv1). As far as I can tell, this is MPEG-4 with H.264.
>
>
> I'm going to stick my neck out here (because I could well be wrong)
> but I think the transport layer, as described in that standard, is
> irrelevant as far as being able to capture the signal (which is what
> the OP asked) is concerned. That standard describes how the video and
> audio is digitised and compressed into a stream. If that stream is
> then broadcast using DVB-T then any DVB-T card should be able to
> receive it and store it to a file. Whether you can watch it or not
> depends on having the horsepower to decode that stream in real time.
>
> If however it's broadcast using DVB-T2 then your'e going to need a
> DVB-T2 card to capture the file.
According to http://en.wikipedia.org/wiki/DVB-T2, DVB-T2 has not yet
been ratified as a standard.
http://en.wikipedia.org/wiki/DVB-T_in_Ireland also contains useful
background and links. It looks like the current MPEG-4 encoded content
is broadcast via DVB-T.
Nick
--
Nick Morrott
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