hal: Add support for AAC ADTS offload playback

-In byte stream mode input bistream is configured with AAC ADTS format
-Add change to configure ADSP in ADTS format if input is in ADTS format

Change-Id: Ie423af6847e4bfd49722239105aaba4fecf9469b
diff --git a/hal/audio_extn/audio_extn.h b/hal/audio_extn/audio_extn.h
index 9391bec..fae114e 100644
--- a/hal/audio_extn/audio_extn.h
+++ b/hal/audio_extn/audio_extn.h
@@ -85,6 +85,16 @@
 #define AUDIO_FORMAT_APE 0x1D000000UL
 #endif
 
+#ifndef AAC_ADTS_OFFLOAD_ENABLED
+#define AUDIO_FORMAT_AAC_ADTS 0x1E000000UL
+#define AUDIO_FORMAT_AAC_ADTS_LC   (AUDIO_FORMAT_AAC_ADTS |\
+                                      AUDIO_FORMAT_AAC_SUB_LC)
+#define AUDIO_FORMAT_AAC_ADTS_HE_V1 (AUDIO_FORMAT_AAC_ADTS |\
+                                      AUDIO_FORMAT_AAC_SUB_HE_V1)
+#define AUDIO_FORMAT_AAC_ADTS_HE_V2  (AUDIO_FORMAT_AAC_ADTS |\
+                                      AUDIO_FORMAT_AAC_SUB_HE_V2)
+#endif
+
 #ifndef COMPRESS_METADATA_NEEDED
 #define audio_extn_parse_compress_metadata(out, parms) (0)
 #else
diff --git a/hal/audio_extn/utils.c b/hal/audio_extn/utils.c
index dac6c26..b3e6331 100644
--- a/hal/audio_extn/utils.c
+++ b/hal/audio_extn/utils.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
  * Not a Contribution.
  *
  * Copyright (C) 2014 The Android Open Source Project
@@ -122,6 +122,10 @@
     STRING_TO_ENUM(AUDIO_FORMAT_AAC_LC),
     STRING_TO_ENUM(AUDIO_FORMAT_AAC_HE_V1),
     STRING_TO_ENUM(AUDIO_FORMAT_AAC_HE_V2),
+    STRING_TO_ENUM(AUDIO_FORMAT_AAC_ADTS),
+    STRING_TO_ENUM(AUDIO_FORMAT_AAC_SUB_LC),
+    STRING_TO_ENUM(AUDIO_FORMAT_AAC_SUB_HE_V1),
+    STRING_TO_ENUM(AUDIO_FORMAT_AAC_SUB_HE_V2),
 #endif
 };