[M4IF Technotes] Re: Question MPEG-2 vs MPEG-4.

[Ralph Sperschneider]

Dear Alejandro, all,
may I kindly suggest to distinguish more clearly between Systems, Video, Audio, or any other part of MPEG-2/4 already in the Subject? It would help to find out more easily whether one can or cannot comment on the topic.
Best regards,
Ralph
Alejandro RAMIREZ wrote:
> 
> Hi,
> 
> I am confronted with the following problem:
> I must implement a coder MPEG-4 starting from a coder MPEG-2. I have the
> source code of the coder MPEG-2. Initially I would have liked to know if
> that were possible.
> In the second time, if that is possible, the reasoning below is it correct?
> I thought to change VLC part of coder MPEG-2 by VLC part of the coder MPEG-4
> who is specified in the standard 14496-2(version paper) and also to implant
> the headings specified inside. And to keep the DCT, the quantification, the
> RL, the movement estimation, and the rate control(TM5) by the coder MPEG-2
> which I have already.
> 
> The reasoning is it good? or requires it more work?
> Is this better to start from a coder MPEG-4 directly because the differences
> between coder MPEG-2 and MPEG-4 are too significant?
> 
> Thank you for your answers,
> 
> Alejandro
> 
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Dipl.-Ing. Ralph Sperschneider  | Phone: +49 9131 776 344
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