From: Raymond Yau <superquad.vortex2@gmail.com>
To: ALSA Development Mailing List <alsa-devel@alsa-project.org>
Subject: Re: [PATCH] Alsa-plugins: Pulse: Fix snd_pcm_avail returning 0 in some cases
Date: Fri, 22 Apr 2011 07:25:53 +0800 [thread overview]
Message-ID: <BANLkTikb0uuEw9-gbbGW6Kcf0LkPHsgxdw@mail.gmail.com> (raw)
In-Reply-To: <4DB02F8A.4040001@canonical.com>
2011/4/21 David Henningsson <david.henningsson@canonical.com>
> Due to a round-off error, snd_pcm_avail could in some cases
> return 0 even though more data could be written to the stream.
>
> This was discovered by Maarten Lankhorst [1], and there is also a test
> program available that triggers this error [2].
>
> [1]
> https://tango.0pointer.de/pipermail/pulseaudio-discuss/2011-April/009935.html
>
> [2]
> https://tango.0pointer.de/pipermail/pulseaudio-discuss/attachments/20110420/3c852d6e/attachment.c
>
>
> --
> David Henningsson, Canonical Ltd.
> http://launchpad.net/~diwic
>
if the test program can force under-run occur with "hw" device and "pulse"
device with his patch in
https://tango.0pointer.de/pipermail/pulseaudio-discuss/2011-April/009918.html
Is it normal that underrun does not occur with the test program and your
patch
next prev parent reply other threads:[~2011-04-21 23:25 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-21 13:22 [PATCH] Alsa-plugins: Pulse: Fix snd_pcm_avail returning 0 in some cases David Henningsson
2011-04-21 23:25 ` Raymond Yau [this message]
2011-04-26 8:01 ` David Henningsson
2011-04-26 14:39 ` Takashi Iwai
2011-05-07 3:18 ` Raymond Yau
2011-04-27 1:00 ` Raymond Yau
2011-04-29 2:32 ` Raymond Yau
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