[CELT-dev] GLOBAL_STACK_SIZE

[Jean-Marc Valin]

Hi Mike,

On 10-06-07 06:08 PM, Mike Hooper wrote:
> Thanks for the feedback. But I'm still a bit confused on a couple of things:
> 1. The TI compiler does not support alloc(), so I have #undef USE_ALLOCA.

Please complain to your vendor about adding either alloca() or C99 
variable-size arrays :-)

> 2. The TI compiler does support calloc(), so I am using
> celt_alloc_scratch(GLOBAL_STACK_SIZE), where GLOBAL_STACK_SIZE = 10000bytes.

On that one I guess you'll have to evaluate the minimum size you need 
for the encoding mode you're using.

> 3. What confuses me is the following code in modes.c which seems to dictate
> the need for "global_stack" to be non-NULL:
>
> #if !defined(VAR_ARRAYS)&&  !defined(USE_ALLOCA)
>     if (global_stack==NULL)
>     {
>        celt_free(global_stack);
>        goto failure;
>     }
>
> Am I misunderstanding something here?

I have to admit I'm just as confused as you are on this one. Need to 
check further.

Cheers,

	Jean-Marc