Default value is 0.
+@item eld_v2
+Enable ELDv2 (LD-MPS extension for ELD stereo signals) for ELDv2 if set to 1,
+disabled if set to 0.
+
+Note that option is available when fdk-aac version (AACENCODER_LIB_VL0.AACENCODER_LIB_VL1.AACENCODER_LIB_VL2) > (4.0.0).
+
+Default value is 0.
+
@item signaling
Set SBR/PS signaling style.