[Mp4-tech] Differences between MPEG4 and MPEG4S

[mayank agarwal]

Saradhi,
ISO-14496 document that specifies MPEG-4 has the
option in which
MPEG-4 simple profile is compatible with H.263
baseline profile
In the former case the VOP header is 0x00 0x00 0x01
0xb6 and in the later case the VOP header is 0x00 0x00
0x01 0x80/81/82/83 and
in this case the MPEG-4 simple profile is compatible
with H.263
baseline profile.
 You can look for MPEG-4 standard doc at
www.iso.org,H.263 standard document can be downloaded
at www.itu.int.
Regards,
Mayank
--- "Saradhi DV." <saradhidv esntechnologies.co.in>
wrote:
> Dear Gary,
> 
> What I mean was MPEG4 Short headers.
> 
> I came to know that MPEG-4 Short headers means H.263
> video stream
> encapsulated with MPEG-4 video stream headers.
> 
> But is there any
> specification/documentation/reference code available
> for this standard.
> 
> Regards,
> Saradhi
> 
> -----Original Message-----
> From: Gary Sullivan
> [mailto:garysull windows.microsoft.com] 
> Sent: Tuesday, December 06, 2023 11:52 PM
> To: Saradhi DV.; mp4-tech lists.mpegif.org
> Subject: RE: [Mp4-tech] Differences between MPEG4
> and MPEG4S
> 
> 
> Saradhi et al,
> 
> There is nothing formally called MPEG4s or MPEG4S. 
> You did not say
> where you found that acronym, so it may be difficult
> to help you.  From
> a quick web search, I noticed that some people seem
> to be referring to
> "an MPEG4" as a video file that has been encoded in
> MPEG4 format, and
> that some people seem to be pluralizing the term by
> adding an "s" on the
> end.   So that having "some MPEG4s" refers to having
> some MPEG4-encoded
> files (similar to the way some people refer to
> having some "MP3s" when
> they refer to having some encoded audio files that
> use the MPEG-1 Layer
> 3 syntax).
> 
> Alternatively, one of the well-defined subsets of
> the technology in the
> standard is called the "Simple profile".  Therefore,
> MPEG4S might
> hypothetically refer to the Simple profile of MPEG4.
> 
> Best Regards,
> 
> Gary Sullivan 
> 
> +> -----Original Message-----
> +> From: mp4-tech-bounces lists.mpegif.org 
> +> [mailto:mp4-tech-bounces lists.mpegif.org] On
> Behalf Of Saradhi DV.
> +> Sent: Monday, December 05, 2023 12:56 AM
> +> To: mp4-tech lists.mpegif.org
> +> Subject: [Mp4-tech] Differences between MPEG4 and
> MPEG4S
> +> 
> +> Dear experts,
> +> 
> +> I am sorry to ask the basic question to experts.
> +> 
> +> Can any of you tell the differences between MPEG4
> and MPEG4s Video?
> +> I trine in web for documentation of MPEH4s, but
> it went in vain.
> +> 
> +> If any of you have useful documentation about
> MPEH4s could you please
> +> forward that to me or send me the links.
> +> 
> +> Thanks in advance.
> +> 
> +> Regards,
> +> Saradhi
> +> 
> +> 
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