From: Guilherme <grlongo.ireland@gmail.com>
Cc: alsa-devel@alsa-project.org
Subject: Understanding _snd_pcm_channel_area Struct (PCM Interface)!
Date: Tue, 23 Jun 2009 02:40:35 -0300 [thread overview]
Message-ID: <4A406AD3.2050002@gmail.com> (raw)
In-Reply-To: <4A3DEAF9.80508@free.fr>
Hi all.
I am a bit confused on what I get with this function.
I finished my first project but I did not understand what exactly the
_snd_pcm_channel_area at
http://www.alsa-project.org/alsa-doc/alsa-lib/struct__snd__pcm__channel__area.html
does.
There are 3 fields in the documentation.
addr, first and step.
It seems that addr is the memory address of the channel samples... so
far so good. The "step" is the distance between 2 sample (but I am not
sure) and the least, "first", I could not figure out what does it means.
Could I get some help from here?
Thanks in advanced!
Tks!
-------------------
Guilherme Longo
Dept. Eng. da Computação
Unaerp
Linux User - #484927
*Before Asking
http://www.istf.com.br/?page=perguntas
!- I'd rather die on my feet than live on my knees -!
next parent reply other threads:[~2009-06-23 5:39 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4A3DEAF9.80508@free.fr>
2009-06-23 5:40 ` Guilherme [this message]
2009-06-23 11:14 ` Understanding _snd_pcm_channel_area Struct (PCM Interface)! Takashi Iwai
2009-06-27 2:56 ` Guilherme
2009-06-27 7:32 ` Takashi Iwai
[not found] ` <4A4A23D4.4090505@gmail.com>
2009-06-30 14:42 ` Takashi Iwai
2009-06-30 15:01 ` Guilherme
2009-06-30 15:13 ` Takashi Iwai
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