Ubuntu
esound package

  1. Bug #66952
  2. Comment #0

Comment 0 for bug 66952

Revision history for this message
Tatsuya Noda (topia) wrote :

I used esddsp for testing portaudio, but sound played twice the length of original time.

so I checked source of portaudio and esddsp, they are working as:
 1. portaudio use SNDCTL_DSP_CHANNELS with 2(stereo)
 2. esddsp ignore this, but return successful return value
 3. finally, esddsp using default mode(monoral)

so, maybe real bug is 2nd behavior (ignore and successful return value),
but we seems like to support this ioctl, by OSS API reference <http://manuals.opensound.com/developer/SNDCTL_DSP_CHANNELS.html>.