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Discussion Groups | Image Signal Processing | H263: Finding macroblock boundaries with in a GoB
Technical Discussions related to Image Processing (image coding, compression, digital effects, mpeg, etc)
H263: Finding macroblock boundaries with in a GoB - lau - Oct 24 3:41:00 2005
Hello All,
I have a doubt about H263
How can I find out the macroblock boundaries with in a GoB of H263
bitstream??
Does a Block / Block data with in a macroblock have a fixed size??
So that I can calculate size of the first macro block and advance to the
next one and so on…..
could any one help me on this....
Thank you in advance
Lausankar Bhavan
Lausankar Lalitha Bhavan
(You need to be a member of imagedsp -- send a blank email to imagedsp-subscribe@yahoogroups.com )
Re: H263: Finding macroblock boundaries with in a GoB - Ranjith Parakkal - Oct 25 15:12:00 2005
Lau,
You cannot jump to the beginning of the next MB
without parsing the current MB data.
GOB markers if present are the only points that you
can sync to.
Regards
Ranjith
--- lau <lausankar@laus...> wrote:
> Hello All,
>
> I have a doubt about H263
>
> How can I find out the macroblock boundaries with in
> a GoB of H263
> bitstream??
> Does a Block / Block data with in a macroblock have
> a fixed size??
> So that I can calculate size of the first macro
> block and advance to the
> next one and so on…..
>
> could any one help me on this....
>
> Thank you in advance
> Lausankar Bhavan
>
> Lausankar Lalitha Bhavan
(You need to be a member of imagedsp -- send a blank email to imagedsp-subscribe@yahoogroups.com )
You cannot jump to the beginning of the next MB
without parsing the current MB data.
GOB markers if present are the only points that you
can sync to.
Regards
Ranjith
--- lau <lausankar@laus...> wrote:
> Hello All,
>
> I have a doubt about H263
>
> How can I find out the macroblock boundaries with in
> a GoB of H263
> bitstream??
> Does a Block / Block data with in a macroblock have
> a fixed size??
> So that I can calculate size of the first macro
> block and advance to the
> next one and so on…..
>
> could any one help me on this....
>
> Thank you in advance
> Lausankar Bhavan
>
> Lausankar Lalitha Bhavan
(You need to be a member of imagedsp -- send a blank email to imagedsp-subscribe@yahoogroups.com )