[M4IF Technotes] About Advanced Simple Profile tools

[Rob Koenen]

In an ENcoder, you can do what you want as long as you do not use
tools that aren't in the profile (and you observe the level
restrictions).
If you use only a part of the too set, you can still output a compliant
bistream (although your quality may be significant behind that of your
competition)
I na DEcoder, you MUST implement all tools in the profile to be 
compliant. 
Of course there are more tools than just the three you mention, such
as B frames (and P frames, etc. etc.)
Note that Interlace is not required in the lower levels (1,2,3 and 3a)
For more information, see http://www.m4if.org/resources.php towards 
the bottom.
Best,
Rob
> -----Original Message-----
> From: Xue Xuhong [mailto:xxh   soft.thtf.com.cn] 
> Sent: Thursday, November 07, 2023 19:35
> To: technotes   lists.m4if.org
> Subject: [M4IF Technotes] About Advanced Simple Profile tools
> 
> 
> Hi,
> 
> I am doing some work about Advanced Simple Profile(ASP), I 
> know three tools are used in ASP,they are: 1)Interlace 2)GMC 
> 3)1/4-pel MC
> 
> I wonder if there are bitstream files that only used 
> Interlace tool, only GMC tool, or only 1/4-pel MC tool?
> 
> That is, should the three tools must be used together to 
> implement ASP, they can not be used separately?
> 
> 
> 
> Thank you.
> 
> Regards,
> Xue Xuhong
> 
> 
> 
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