[Bug 719421] New: alsasink docs don't mention channel-mask requirement

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=719421
  GStreamer | documentation | 1.x

           Summary: alsasink docs don't mention channel-mask requirement
    Classification: Platform
           Product: GStreamer
           Version: 1.x
        OS/Version: All
            Status: UNCONFIRMED
          Severity: minor
          Priority: Normal
         Component: documentation
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: tghs at tghs.net
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


To get alsasink to work with >2 channel audio, you need to specify
'channel-mask' in the caps. This requirement is noted elsewhere in the 1.x
documentation, but not in the alsasink documentation itself. A note here of
this would be useful.

I only became aware of this requirement when porting a 0.10 plugin to 1.x, when
my multichannel audio didn't work because I wasn't setting a 'channel-mask'.
I'm not sure if this is something that should have been done anyway with 0.10.
Either way, this change in behaviour should probably be noted in the 0.10 ->
1.0 porting guide.

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