opus - Aug 2012 - Memory Size?

In order to determine the optimum heap size requirements for my embedded
C55xx design, I have used the following to get the encoder and decoder
memory requirements:

 

       size = opus_encoder_get_size(config.channels);

       enc = malloc(size);

       error = opus_encoder_init(enc, config.Fs, config.channels,
config.application);

 

       size = opus_decoder_get_size(config.channels);

       dec = malloc(size);

       error = opus_decoder_init(dec, config.Fs, config.channels);

 

Both the encode decoder init function return no error. However, opus_encode
crashes somewhere deep in the bowels of the function (I cannot determine
where since I have compiler optimizations enabled). Do I need more heap than
what is returned by the above get_size functions?

 

Thx,

 

MikeH

 

 

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On Fri, Aug 31, 2012 at 1:10 PM, Mike Hooper <mihooper at bellsouth.net>
wrote:
> In order to determine the optimum heap size requirements for my embedded
> C55xx design, I have used the following to get the encoder and decoder
> memory requirements:
[snip]
> Both the encode decoder init function return no error. However, opus_encode
> crashes somewhere deep in the bowels of the function (I cannot determine
> where since I have compiler optimizations enabled). Do I need more heap
than
> what is returned by the above get_size functions?
In a normal compile there are _no_ heap allocations done except in the
_create calls, which you can avoid using as you've described.

If you have compiled with NONTHREADSAFE_PSEUDOSTACK in order to reduce
the stack usage then there are heap allocations via
opus_alloc_scratch() to allocate stack for the pesudostack.