[M4IF Technotes] Hi

[Sudhakar Rao Kimidi]

Hil,
The problem with going for parallelization at macro block level : In case of
Intra macro blocks...If AC prediction is to be done from the macroblock just
before the present macroblock ::::  the present macroblock decoding has to wait
till it gets the quantized AC fist column coefficients of previous macroblocks
====================================================.
And I think thresholds for video packets are suggested in verification model
even for no data-partioning. If encoders follow that threshold we may get some
number of video packets per VOP ( That helps to go for parallelization at Video
packet level)
regards,
sudhakar k.
Ramkishor Korada wrote:
> Hi,
>  Reg. video packets, already it has been discussed here. Unless data
> partitioning is enabled, there is no limitation on packet size.
>
> Parallelization at macroblock decoding level can be tried out i.e., IQ &
> IDCT can be done on one PE (Processing Element) and MC can be done on
> another PE.
> Parallelization within the packet can be also tried out i.e., if four PEs
> are available then four macroblocks can be decoded simultaneously on four
> PEs. In this method, if the number of available PEs is more than the number
> of macroblocks in the packet, then some PEs are under utilized. But, usually
> this won't happen unless the processor has PEs in the order of 30-40.
>
> regards,
> ramkishor
>
> Architect - Video
> Multimedia Technologies Division
> Emuzed India
> Bangalore
> www.emuzed.com
>
> ----- Original Message -----
> From: "Sudhakar Rao Kimidi" <sudhakar   cradle.com>
> To: <    >
> Sent: Tuesday, September 18, 2023 11:41 AM
> Subject: [M4IF Technotes] Hi
>
> > Hi all,
> >
> > Can somebody, who is experienced in MPEG-4 video coding, help me.
> >
> > How many video packets do you usually find  per video object of size CIF
> > when coded at rate 384kbps using Simple Profile?. What is the minimum
> > number of video packets of the same case?
> > I need this as a part of looking for parallelization in coding
> >
> > Thanks&Regards,
> > Sudhakar K.
> >
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