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-rw-r--r--src/output_internal.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/output_internal.h b/src/output_internal.h
index 6b81bbc78..de1b15c29 100644
--- a/src/output_internal.h
+++ b/src/output_internal.h
@@ -40,6 +40,13 @@ enum audio_output_command {
AO_COMMAND_CLOSE,
AO_COMMAND_PAUSE,
+
+ /**
+ * Drains the internal (hardware) buffers of the device. This
+ * operation may take a while to complete.
+ */
+ AO_COMMAND_DRAIN,
+
AO_COMMAND_CANCEL,
AO_COMMAND_KILL
};