From: William Estrada <MrUmunhum@popdial.com>
To: "alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>
Subject: Clearification needed about structure _snd_pcm
Date: Sat, 06 Sep 2008 13:05:34 -0700 [thread overview]
Message-ID: <48C2E28E.1060208@popdial.com> (raw)
Hi group,
I have found the documentation about ALSA very confusing. Where can I
find the definitions
about the fields in the structure_snd_pcm? Specifically Buffer, Rate,
Period, Buffer Size,
Period size, etc. Basically all of these:
> Device: 8c297b8
> PCM Device name = 'default' PCM state = RUNNING
> access type = MMAP_NONINTERLEAV format = 'U8' (Unsigned
> 8 bit)
> subformat = 'STD' (Standard) channels = 1
> rate = 8000 bps period time = 10000 us
> period size = 80 frame buffer time = 0 us
> buffer size = 65536 frames periods/buffer = 0 frames
> exact rate = 8000/1 bps significant bits = 8000
> is batch = 0 is block transfer = 1
> is double = 0 is half duplex = 0
> is joint duplex = 0 can overrange = 0
> can mmap = 1 can pause = 0
> can resume = 1 can sync start = 1
My program is not honoring the 'packet size'.
--
William Estrada
MrUmunhum@popdial.com
Mt-Umunhum-Wireless.net ( http://Mt-Umunhum-Wireless.net )
Ymessenger: MrUmunhum
reply other threads:[~2008-09-06 20:05 UTC|newest]
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