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From: Carlos Munoz <carlos@kenati.com>
To: Giuliano Pochini <pochini@shiny.it>
Cc: alsa-devel@lists.sourceforge.net
Subject: Re: buffer_bytes not multiple of period_bytes
Date: Thu, 20 Apr 2006 10:50:43 -0700	[thread overview]
Message-ID: <4447C9F3.6040008@kenati.com> (raw)
In-Reply-To: <XFMail.20060420091724.pochini@shiny.it>

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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      reply	other threads:[~2006-04-20 17:50 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-04-20  1:54 buffer_bytes not multiple of period_bytes Carlos Munoz
2006-04-20  7:13 ` Jaroslav Kysela
2006-04-20  7:17 ` Giuliano Pochini
2006-04-20 17:50   ` Carlos Munoz [this message]

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