Re: to be effcient or not to be efficient

Artem Baguinski wrote:

>>That's not true for the DJ software I want to make. Many tracks can be 
>>used at the same time, in parallel. Not all is serialised. As long as 
>>you have filters with multiple input/multiple output (pins) you also 
>>have some parallel processing. Think of merging the subtitle track on 
>>the video track too.
> 
> 
> that's your software specifics and they have to be implemented in your
> software. [well, in my also, do i'm mulotithreading as well].
> 
> it doesn't mean the codec api have to create any threads. the
> possibility of some parts running in separate threads should be
> considered of course, but not implemented by the media access library.

OK, that makes sense this way.

> synchronization between the threads just complicates the implementation
> of the components although has nothing to do with the functionality they
> provide. all the decoder has to do is to decode frames. 

No. It has to handle frame references too (in the case of video with P 
and B frames). That means caching data and requesting data while it is 
supposed to do somehting else (decode a frame).