From: Lee Revell <rlrevell@joe-job.com>
To: Adrian McMenamin <adrian@mcmen.demon.co.uk>
Cc: alsa-devel@alsa-project.org
Subject: Re: Detecting the sample format in the driver
Date: Sun, 19 Mar 2006 19:32:55 -0500 [thread overview]
Message-ID: <1142814775.4532.48.camel@mindpipe> (raw)
In-Reply-To: <1142810413.9700.45.camel@localhost.localdomain>
On Sun, 2006-03-19 at 23:20 +0000, Adrian McMenamin wrote:
> for some reason this isn't working for me - and I need to set hardware
> channel parameters on the basis of the sample.
>
> My hardware plays signed 8 bit, signed 16 bit little endian and 8 bit
> adaptive differential PCM and I have this set...
>
>
>
> .formats =
> (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE |
> SNDRV_PCM_FMTBIT_IMA_ADPCM),
>
>
>
> But when I try to detect the format...
>
> if ((substream->runtime)->format == SNDRV_PCM_FMTBIT_S16_LE)
> channel->sfmt = SM_16BIT;
>
>
> It doesn't seem to work.
>
> I am assuming the alsa subsystem ought to process the stream for me - ie
> any 16 bit stream will turn up as SNDRV_PCM_FMTBIT_S16_LE - is that
> right? And if it is, why isn't it working?
>
What does snd_pcm_format_width(runtime->format) return (check emupcm.c
for examples)?
Lee
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next prev parent reply other threads:[~2006-03-20 0:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-19 23:20 Detecting the sample format in the driver Adrian McMenamin
2006-03-20 0:32 ` Lee Revell [this message]
2006-03-20 8:00 ` Clemens Ladisch
2006-03-20 8:06 ` Adrian McMenamin
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