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From: Irfan shaikh <irfan.shaikh@sasken.com>
To: Ricardo Barbosa <spiderslack@yahoo.com.br>
Cc: "Alsa-devel@alsa-project.org" <Alsa-devel@alsa-project.org>
Subject: Re: question application playback
Date: Tue, 3 Jan 2012 18:00:53 +0530	[thread overview]
Message-ID: <4F02F4FD.80802@sasken.com> (raw)
In-Reply-To: <1325593416.22411.YahooMailNeo@web161301.mail.bf1.yahoo.com>

Hi,

        ALSA can play only raw PCM data. It is not possible to play mp3 
file directly.
Use a decoder interface to decode the mp3 file and the send to ALSA.

Regards
Irfan

On 01/03/2012 05:53 PM, Ricardo Barbosa wrote:
> Hi all.
>
>
> I am new to development using the alsa API and follow the link code http://equalarea.com/paul/alsa-audio.html
>
> insert the following code.
>
>   FILE *fp;
>   fp = fopen("file.mp3", "r");
>   fclose(fp);
>
> and changed variable buf by the variable fp, but by running the file file.mp3 he does not play according to the way it interferes with the function snd_pcm_writei ? someone could help me in developing this playback, I thank
>
> Regards.
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@alsa-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
>

  parent reply	other threads:[~2012-01-03 12:32 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-03 12:23 question application playback Ricardo Barbosa
2012-01-03 12:28 ` Daniel Mack
2012-01-03 12:49   ` Vinod Koul
2012-01-03 12:30 ` Irfan shaikh [this message]
2012-01-04  5:52   ` Rajeev kumar
2012-01-04 13:33     ` Vinod Koul
2012-01-29  6:31       ` Wang Xingchao
2012-01-29 15:51         ` Gabriel M. Beddingfield
2012-01-30  2:25           ` Wang Xingchao

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