[LAD] ALSA FLoat sample format

Hi,

For some unknown reason, I seem to be unable to set SND_PCM_FORMAT_FLOAT
format flag when initialising alsa driver. This happens with my both cards
(on is the laptops AC'97 Audio Controller and the other a similar onboard
cart)

This line used to work with alsa 0.9 but return an "Invalid argument" error
with alsa 1.0.14a :

snd_pcm_hw_params_set_format(alsa_pcm_handle, alsa_hwparams,
SND_PCM_FORMAT_FLOAT_LE)

If I remove this line, the driver gets initialised but as integer sample
format, which, of course, generates noise as I'm sending 32bit floats to the
output...

Example code at lines 1031-1041 :
http://cvs.savannah.nongnu.org/viewvc/freecycle/src/soundplayer.cpp?annotate=1.19&root=freecycle

Please, please help !

Predrag

http://freecycle.redsteamrecords.com

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Received on Thu Aug 16 12:15:02 2007