Re: buffering madlib samples

On Sep 5, 2005, at 12:18 AM, Swapnil Wagle wrote:
> I am trying to play the converted PCM samples from Madlib on  
> PalmOS..But the speed at which Madlib decodes the samples is too  
> high.I am not able to buffer all the samples at one time whicih  
> results in buffer overlapping.I wanted to know whether it is  
> possible to make the Madlib libarary wait for a while till all the  
> current samples have been played.

This is up to you. If you don't want libmad to process more samples,  
then don't call a low-level API routine or return from a high-level  
callback until you're ready.

There are examples of this in madplay for Mac and Windows systems in  
audio_carbon.c and audio_win32.c, respectively: they each make use of  
a synchronization object (a semaphore) to wait for an available  
output PCM buffer. When the system finishes playing a buffer, it runs  
a callback in separate thread which releases the semaphore.

-- 
Rob Leslie
[email protected]