+/* Audio starts here */
+/* Audio Codecs */
+#define HB_ACODEC_MASK 0x00FF00
+#define HB_ACODEC_FAAC 0x000100
+#define HB_ACODEC_LAME 0x000200
+#define HB_ACODEC_VORBIS 0x000400
+#define HB_ACODEC_AC3 0x000800
+#define HB_ACODEC_MPGA 0x001000
+#define HB_ACODEC_LPCM 0x002000
+#define HB_ACODEC_DCA 0x004000
+#define HB_ACODEC_FFMPEG 0x008000
+#define HB_ACODEC_CA_AAC 0x010000
+
+/* Audio Mixdown */
+/* define some masks, used to extract the various information from the HB_AMIXDOWN_XXXX values */
+#define HB_AMIXDOWN_DCA_FORMAT_MASK 0x00FFF000
+#define HB_AMIXDOWN_A52_FORMAT_MASK 0x00000FF0
+#define HB_AMIXDOWN_DISCRETE_CHANNEL_COUNT_MASK 0x0000000F
+/* define the HB_AMIXDOWN_XXXX values */
+#define HB_AMIXDOWN_MONO 0x01000001
+// DCA_FORMAT of DCA_MONO = 0 = 0x000
+// A52_FORMAT of A52_MONO = 1 = 0x01
+// discrete channel count of 1
+#define HB_AMIXDOWN_STEREO 0x02002022
+// DCA_FORMAT of DCA_STEREO = 2 = 0x002
+// A52_FORMAT of A52_STEREO = 2 = 0x02
+// discrete channel count of 2
+#define HB_AMIXDOWN_DOLBY 0x042070A2
+// DCA_FORMAT of DCA_3F1R | DCA_OUT_DPLI = 519 = 0x207
+// A52_FORMAT of A52_DOLBY = 10 = 0x0A
+// discrete channel count of 2
+#define HB_AMIXDOWN_DOLBYPLII 0x084094A2
+// DCA_FORMAT of DCA_3F2R | DCA_OUT_DPLII = 1033 = 0x409
+// A52_FORMAT of A52_DOLBY | A52_USE_DPLII = 74 = 0x4A
+// discrete channel count of 2
+#define HB_AMIXDOWN_6CH 0x10089176
+// DCA_FORMAT of DCA_3F2R | DCA_LFE = 137 = 0x089
+// A52_FORMAT of A52_3F2R | A52_LFE = 23 = 0x17
+// discrete channel count of 6
+/* define some macros to extract the various information from the HB_AMIXDOWN_XXXX values */
+#define HB_AMIXDOWN_GET_DCA_FORMAT( a ) ( ( a & HB_AMIXDOWN_DCA_FORMAT_MASK ) >> 12 )
+#define HB_AMIXDOWN_GET_A52_FORMAT( a ) ( ( a & HB_AMIXDOWN_A52_FORMAT_MASK ) >> 4 )
+#define HB_AMIXDOWN_GET_DISCRETE_CHANNEL_COUNT( a ) ( ( a & HB_AMIXDOWN_DISCRETE_CHANNEL_COUNT_MASK ) )
+
+/* Input Channel Layout */
+/* define some masks, used to extract the various information from the HB_AMIXDOWN_XXXX values */
+#define HB_INPUT_CH_LAYOUT_DISCRETE_FRONT_MASK 0x00F0000
+#define HB_INPUT_CH_LAYOUT_DISCRETE_REAR_MASK 0x000F000
+#define HB_INPUT_CH_LAYOUT_DISCRETE_LFE_MASK 0x0000F00
+#define HB_INPUT_CH_LAYOUT_DISCRETE_NO_LFE_MASK 0xFFFF0FF
+#define HB_INPUT_CH_LAYOUT_ENCODED_FRONT_MASK 0x00000F0
+#define HB_INPUT_CH_LAYOUT_ENCODED_REAR_MASK 0x000000F
+/* define the input channel layouts used to describe the channel layout of this audio */
+#define HB_INPUT_CH_LAYOUT_MONO 0x0110010
+#define HB_INPUT_CH_LAYOUT_STEREO 0x0220020
+#define HB_INPUT_CH_LAYOUT_DOLBY 0x0320031
+#define HB_INPUT_CH_LAYOUT_3F 0x0430030
+#define HB_INPUT_CH_LAYOUT_2F1R 0x0521021
+#define HB_INPUT_CH_LAYOUT_3F1R 0x0631031
+#define HB_INPUT_CH_LAYOUT_2F2R 0x0722022
+#define HB_INPUT_CH_LAYOUT_3F2R 0x0832032
+#define HB_INPUT_CH_LAYOUT_4F2R 0x0942042
+#define HB_INPUT_CH_LAYOUT_3F4R 0x0a34034
+#define HB_INPUT_CH_LAYOUT_HAS_LFE 0x0000100
+/* define some macros to extract the various information from the HB_AMIXDOWN_XXXX values */
+#define HB_INPUT_CH_LAYOUT_GET_DISCRETE_FRONT_COUNT( a ) ( ( a & HB_INPUT_CH_LAYOUT_DISCRETE_FRONT_MASK ) >> 16 )
+#define HB_INPUT_CH_LAYOUT_GET_DISCRETE_REAR_COUNT( a ) ( ( a & HB_INPUT_CH_LAYOUT_DISCRETE_REAR_MASK ) >> 12 )
+#define HB_INPUT_CH_LAYOUT_GET_DISCRETE_LFE_COUNT( a ) ( ( a & HB_INPUT_CH_LAYOUT_DISCRETE_LFE_MASK ) >> 8 )
+#define HB_INPUT_CH_LAYOUT_GET_DISCRETE_COUNT( a ) ( ( ( a & HB_INPUT_CH_LAYOUT_DISCRETE_FRONT_MASK ) >> 16 ) + ( ( a & HB_INPUT_CH_LAYOUT_DISCRETE_REAR_MASK ) >> 12 ) + ( ( a & HB_INPUT_CH_LAYOUT_DISCRETE_LFE_MASK ) >> 8 ) )
+#define HB_INPUT_CH_LAYOUT_GET_ENCODED_FRONT_COUNT( a ) ( ( a & HB_INPUT_CH_LAYOUT_ENCODED_FRONT_MASK ) >> 4 )
+#define HB_INPUT_CH_LAYOUT_GET_ENCODED_REAR_COUNT( a ) ( ( a & HB_INPUT_CH_LAYOUT_ENCODED_REAR_MASK ) )
+
+struct hb_audio_config_s