[mythtv] [mythtv-commits] Ticket #1608: Proper Handling of Alsa AC3-PassThru

[Martin Ebourne]

On Sat, 01 Apr 2006 00:29:20 +0000, MythTV wrote:
> #1608: Proper Handling of Alsa AC3-PassThru
> -------------------------------+--------------------------------------------
>  Reporter:  msc at antzsystem.de  |       Owner:  rkulagow
>      Type:  patch              |      Status:  new
>  Priority:  minor              |   Milestone:
> Component:  mythtv             |     Version:  head
>  Severity:  medium             |
> -------------------------------+--------------------------------------------
>  Fixed ac3 pass thru code with help from mplayer code.
> 
>  Now the samples will be passed thru, only if passthru is enabled, to
>  iec958 alsa plugin. This way all normal mpg stereo output can go to
>  alsa:default (mostly pcm0 or dmix plugin or similar) and ac3 will be
>  passed thru iec958 plugin.

No, that's not right. Your code forces the output on soundcard 0 whereas
my passtrhu output is on soundcard 1 for instance. My soundcard
(Soundblaster Live 24-bit External) doesn't need any special options set
for passthru, and I don't think even supports the iec958 plugin (I can
check and confirm that for certain if it helps).

Cheers,

Martin.