Handle 3D7.1 as a separate channel configuration

It's treated as 5.1 + 2 aux channels. This allows AL_DIRECT_CHANNELS_SOFT to
behave better, not forwarding rear left/right channel inputs to lower front and
upper rear, and allows reporting a more appropriate output mode to the app
instead of 7.1.

1 files changed, 1 insertions, 0 deletions

diff --git a/alc/backends/coreaudio.cpp b/alc/backends/coreaudio.cpp
index ed85e2a9..b81bd58a 100644
--- a/alc/backends/coreaudio.cpp
+++ b/alc/backends/coreaudio.cpp
@@ -764,6 +764,7 @@ void CoreAudioCapture::open(const char *name)
     case DevFmtX51:
     case DevFmtX61:
     case DevFmtX71:
+    case DevFmtX3D71:
     case DevFmtAmbi3D:
         throw al::backend_exception{al::backend_error::DeviceError, "%s not supported",
             DevFmtChannelsString(mDevice->FmtChans)};