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-rw-r--r--libaf/control.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/libaf/control.h b/libaf/control.h
index b580a6f7fa..80eff7c584 100644
--- a/libaf/control.h
+++ b/libaf/control.h
@@ -193,6 +193,8 @@ typedef struct af_control_ext_s{
// Number of outputs from pan, arg is int*
#define AF_CONTROL_PAN_NOUT 0x00001B00 | AF_CONTROL_FILTER_SPECIFIC
+// Balance, arg is float*; range -1 (left) to 1 (right), 0 center
+#define AF_CONTROL_PAN_BALANCE 0x00002500 | AF_CONTROL_FILTER_SPECIFIC
// Set equalizer gain, arg is a control_ext with a float*
#define AF_CONTROL_EQUALIZER_GAIN 0x00001C00 | AF_CONTROL_FILTER_SPECIFIC