[asterisk-dev] Building codec_gsm against Spandsp

[Philip A. Prindeville]

On 02/03/2010 05:52 PM, Steve Underwood wrote:
> On 02/04/2010 08:17 AM, Tzafrir Cohen wrote:
>   
>> On Wed, Feb 03, 2010 at 03:53:00PM -0800, Philip A. Prindeville wrote:
>>    
>>     
>>> Does anyone have patches (or otherwise know what would be involved) to
>>> build Asterisk's codec_gsm against the Spandsp library?
>>>      
>>>       
>> Why would you want that?
>>    
>>     
> The libgsm with some distributions is quite slow, and some won't pass 
> the test vectors, so there are good reasons to choose an alternative. I 
> think the Asterisk one actually fails a couple of the test vectors, but 
> its close to correct.
>   
>> libgsm is a separate library. Most distributions include it nowadays.
>> Asterisk can either use its internal copy or the system copy of it.
>>    
>>     
> I know people were in denial for ages, blaming GCC for being faulty, but 
> I thought the GSM codec in the Asterisk was eventually fixed. The 
> problem is just an error in embedded assembly language code, where the 
> better optimiser in GCC 4.2 made there error show up for the first time.
>   

Ok, so what's the fix?  Has a bug been filled against this?

Thanks.

>>> We have problems with using GCC 4.2 with Asterisk because of issues in
>>> the codec.
>>>      
>>>       
>> Which Linux distribution do you use?
>>    
>>     
> Steve
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