X-lpcm cap and format?

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X-lpcm cap and format?

pl bossart
Maybe it's a stupid question but does anyone know the difference
between audio/x-lpcm and audio/x-raw-int?
I am trying to understand what mpegtsmux does, and was wondering what
this x-lpcm cap on the sink pad is. The only explanation I could think
of was lpcm is the wording used for DVD audio program streams, is
there some kind of implicit link here? Can't we mux regular PCM into
an MPEG transport stream?
Thanks,
-Pierre

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Re: X-lpcm cap and format?

michael smith-6-3
audio/x-lpcm is DVD-style PCM data - it's arranged differently from
normal interleaved PCM samples, and carries some additional metadata
usually. It's essentially still raw PCM - just with a more complex
interleaving used.

dvdlpcmdec can convert it to normal PCM. I don't think we have a
corresponding encoder, but the format is fairly trivial, so writing
one shouldn't be more than a couple of hours work.

Mike

On Wed, Dec 8, 2010 at 9:13 AM, pl bossart <[hidden email]> wrote:

> Maybe it's a stupid question but does anyone know the difference
> between audio/x-lpcm and audio/x-raw-int?
> I am trying to understand what mpegtsmux does, and was wondering what
> this x-lpcm cap on the sink pad is. The only explanation I could think
> of was lpcm is the wording used for DVD audio program streams, is
> there some kind of implicit link here? Can't we mux regular PCM into
> an MPEG transport stream?
> Thanks,
> -Pierre
>
> ------------------------------------------------------------------------------
> This SF Dev2Dev email is sponsored by:
>
> WikiLeaks The End of the Free Internet
> http://p.sf.net/sfu/therealnews-com
> _______________________________________________
> gstreamer-devel mailing list
> [hidden email]
> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>

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