[M4IF Technotes] question on reference code

[Zvi Lifshitz]

Liang,
IM1 and the MS video codec are two different pieces of software that
implement different parts of the MPEG-4 standard. IM1 is the Systems
reference software while the MS codec is the Visual reference software. With
some effort, they can be integrated as complementary components of a single
application. They are not interoperable, just like video and audio codecs
are not interoperable. And then, wrong, IM1 is *not* supposed to cover the
natural coding part, while MS codec is.
Hope this clarifies the situation a bit.
z
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> -----Original Message-----
> From: Liang Cheng [mailto:lcheng62   yahoo.com]
> Sent: Wednesday, November 21, 2023 14:12
> To: technotes   lists.m4if.org
> Subject: [M4IF Technotes] question on reference code
>
>
> Hello, everyone:
>
> I just got the 14496-5. Could anyone tell me what the
> relatiohship between IM1(system part) and the
> Microsoft work on natural video?  How can I test the
> interoperability of them?  IM1 is supposed to cover
> natural coding part(syntax at least), right?
>
> What I want to do is simply display a compressed
> video, which can be decoded by Microsoft decoder, on
> the IM1 decoder.
>
> Your help will be highly appreciated.  thank you.
>
> Liang
>
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