[FFmpeg-devel] replacing frames/gops inside mpeg4/h264 file

Thomas Jörg thomas
Sat Jun 14 20:30:26 CEST 2008

On 11.06.2008, at 10:13, Luca Barbato wrote:

> Thomas J?rg wrote:
>> thank you very much for this input, luca
>> i took a look at feng. feng is for streaming, right? i'm not talking
>> about streaming.
> What you want (instant composition) is more related to streaming than
> anything else ^^;
>> for the user it has to be like just DOWNLOADING an ordinary mpeg4/ 
>> h264
>> file that he can open or even progressive download into quicktime.
> I'm not sure stitching mov could be done sanely, Mike should know  
> better.
> Anyway we are getting a bit off topic.

ok. i thought about it and a new idea came to my mind:

-> you can look at it like this: a system that can replace a few  
frames/gops inside a big (1gb) mpeg4/h264 videofile. because this  
should happen very fast it would be cool if just the parts/frames/gops  
that have to be updated can be replaced/changed without having to  
write the whole file down to a new file. writing down 1 gb takes us  
more than a minute on our system. this is too long to wait for this  
download, isn't it?

would be really cool if you could help us to make such a system. we  
will find a way to reward you for the work if the solution really  
works out.


> -- 
> Luca Barbato
> Gentoo Council Member
> Gentoo/linux Gentoo/PPC
> http://dev.gentoo.org/~lu_zero
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