[M4IF Technotes] Short Headers and GOB

[Ramkishor Korada]

Hi,
 Putting GOB marker is not compulsory in MPEG-4 standard. It is optional.
regards,
ramkishor
----- Original Message -----
From: "Luca Celetto" <Luca.Celetto   st.com>
To: <technotes   lists.m4if.org>
Sent: Thursday, June 06, 2023 3:32 PM
Subject: [M4IF Technotes] Short Headers and GOB
> From my interpretation of the MPEG-4 standard (document N4350) for what
> regards Short Header modality (section 6.2.5.2, "Video Plane with Short
> Header") it seems to me that putting GOB marker in the bitstream is
> compulsory and a stream without GOBs is not correct (however, this
> interpretation reduces the compatibility between MPEG-4 and H.263).
>
> However, MoMuSys decoder decodes correctly both streams with GOBs and
> without GOBs.
>
> Was my interpretation of the standard correct?
>
> Best regards
>
>                         Luca Celetto
>
> --
>      _/_/_/_/_/_/_/    Luca Celetto - System Engineer
>     _/       _/        STMicroelectronics Srl / Advanced System Technology
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