Re: buffer_bytes not multiple of period_bytes

[Carlos Munoz <carlos@kenati.com>]

Giuliano Pochini wrote:

>On 20-Apr-2006 Carlos Munoz wrote:
>  
>
>>Hi all,
>>
>>I just noticed that alsa doesn't allocate a buffer size that is a
>>multiple of the period size.
>>    
>>
>
>It's not required. If it is not a multiple, then the IRQ happens
>in different points of the ring buffer each round. On some cards
>this is hard or impossible to do. In those cases you can add this
>constraint:
>
>if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
>    return err;
>
>
>  
>
Hi Giuliano,

Yes, that solved the problem.

Thanks,


Carlos


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