[vlc-devel] Re: DSM-CC in ISO/IEC 13818-1

[shilpa.ganatra at wipro.com]

I would like to apply trick mode (play, pause, Fast forward, Fast
rewind...) on MPEG-2 TS stream which is transferred to DTV on other end.

As MPEG-2 TS contains PSI (Program Specific information) and PES
(Packetized elementary stream) we can't handle trick mode like a normal
data. One day I read in 13818-1 Appendix B tell that using DSM-CC can be
used to support trick mode. DSM-CC will send the control(trick)
information along with the bit stream id's to the receiver

We have DTV on the receiver end. I am not sure whether DTV support
DSM-CC. That is whether DTV will Demux the control(trick)information and
apply the trick mode on the receiver end.

Is there any application or product which supports trick mode on
MPEG2-TS (may not be DSM-CC)? If yes, how it is applied?

Regards,
Shilpa



-----Original Message-----
From: vlc-devel-bounce at videolan.org
[mailto:vlc-devel-bounce at videolan.org] On Behalf Of Christophe Massiot
Sent: Thursday, September 29, 2005 7:12 PM
To: vlc-devel at videolan.org
Subject: [vlc-devel] Re: DSM-CC in ISO/IEC 13818-1

On Thu, Sep 29, 2005, shilpa.ganatra at wipro.com wrote:
>
> Hi,
>
> I would like to know about DSM-CC (in ISO/IEC 13818-1).
>
> 1. What are the applications which support DSM-CC model?
> 2. Is DTV complaint with DSM-CC?
> 3. How can I use DSM-CC to handle trick mode?
> 4. Do we have any case-study on DSM-CC? If yes, can you please send
that
> information?

I don't know of any application implementing DSM-CC, and certainly not
in the open source world. You should get additional specifications from
the ISO :
 - ISO/IEC 13818-6 : Extensions for DSM-CC
 - ISO/IEC 13818-10 : Conformance extension for DSM-CC

--
Christophe Massiot.

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