[alsa-devel] IEC switch issues

Raymond Yau superquad.vortex2 at gmail.com
Wed Jun 23 15:21:12 CEST 2010

2010/6/23 Clemens Ladisch <clemens at ladisch.de>

> pl bossart wrote:
> > If I play my AC3 data on my HDAudio/SPDIF output using the hw:0,1
> > device, I can use alsamixer/amixer to mute/unmute.
> >
> > Now if I use the iec958: plugin, I can't control the mute switch any
> longer:
> Muting an AC-3 stream would require encoding a stream of silent PCM
> samples (no data is not the same as silence); therefore, the iec958
> plugin disallows muting.
> Regards,
> Clemens
Does it mean that rewind is not allowed too ?

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