AC3_DHEADPHONMOD_RESERVED
} AC3DolbyHeadphoneMode;
+/** Preferred Stereo Downmix mode */
+typedef enum AC3PreferredStereoDownmixMode {
+ AC3_DMIXMOD_NOTINDICATED = 0,
+ AC3_DMIXMOD_LTRT,
+ AC3_DMIXMOD_LORO,
+ AC3_DMIXMOD_DPLII // reserved value in A/52, but used by encoders to indicate DPL2
+} AC3PreferredStereoDownmixMode;
+
typedef struct AC3BitAllocParameters {
int sr_code;
int sr_shift;