Sample rate validity

Audio Plugins
1

Hi,

the code documentation says (see: AudioProcessor::getSampleRate declaration):

[code] /** Returns the current sample rate.

    This can be called from your processBlock() method - it's not guaranteed
    to be valid at any other time, and may return 0 if it's unknown.
*/
double getSampleRate() const throw()                      { return sampleRate; }[/code]

So, does this mean that there is only a valid sample rate between a call to prepareToPlay and releaseResources, but not outside this pair of functions?

Which then implies that a plugin should do all its sample rate based initialization (like buffer reallocatoins etc…) in the prepareToPlay call?

2

Yes indeed. Outside of those, the processor may be completely disconnected from any kind of playback device, so the idea of a sample rate would be meaningless.

Yep.

3

OK, thanks for confirming.
K