audio: add support for extended audio encoding

- add support for EVRC, QCELP ,LPCM, and multichannel
  encoding.

Change-Id: I9542ec9dec1872237940846952d28bef3ce24285

4 files changed, 118 insertions, 2 deletions

diff --git a/media/java/android/media/AudioFormat.java b/media/java/android/media/AudioFormat.java
index bde3d19..962316b 100644
--- a/media/java/android/media/AudioFormat.java
+++ b/media/java/android/media/AudioFormat.java
@@ -252,6 +252,30 @@ public class AudioFormat {
      * */
     public static final int ENCODING_AAC_HE_V2 = 12;
 
+    /** Audio data format: AMRNB
+     * @hide
+     * */
+    public static final int ENCODING_AMRNB = 100;
+    /** Audio data format: AMRWB
+     * @hide
+     * */
+    public static final int ENCODING_AMRWB = 101;
+    /** Audio data format: EVRC
+     * @hide
+     * */
+    public static final int ENCODING_EVRC = 102;
+    /** Audio data format: EVRCB
+     * @hide
+     * */
+    public static final int ENCODING_EVRCB = 103;
+    /** Audio data format: EVRCWB
+     * @hide
+     * */
+    public static final int ENCODING_EVRCWB = 104;
+    /** Audio data format: EVRCNW
+     * @hide
+     * */
+    public static final int ENCODING_EVRCNW = 105;
     /** Invalid audio channel configuration */
     /** @deprecated Use {@link #CHANNEL_INVALID} instead.  */
     @Deprecated    public static final int CHANNEL_CONFIGURATION_INVALID   = 0;
@@ -409,6 +433,11 @@ public class AudioFormat {
     public static final int CHANNEL_IN_STEREO = (CHANNEL_IN_LEFT | CHANNEL_IN_RIGHT);
     /** @hide */
     public static final int CHANNEL_IN_FRONT_BACK = CHANNEL_IN_FRONT | CHANNEL_IN_BACK;
+    /** @hide */
+    public static final int CHANNEL_IN_5POINT1 = (CHANNEL_IN_LEFT |
+            CHANNEL_IN_RIGHT | CHANNEL_IN_FRONT | CHANNEL_IN_BACK |
+            CHANNEL_IN_LEFT_PROCESSED | CHANNEL_IN_RIGHT_PROCESSED);
+
     // CHANNEL_IN_ALL is not yet defined; if added then it should match AUDIO_CHANNEL_IN_ALL
 
     /** @hide */
@@ -422,6 +451,15 @@ public class AudioFormat {
             return 2;
         case ENCODING_PCM_FLOAT:
             return 4;
+        case ENCODING_AMRNB:
+            return 32;
+        case ENCODING_AMRWB:
+            return 61;
+        case ENCODING_EVRC:
+        case ENCODING_EVRCB:
+        case ENCODING_EVRCWB:
+        case ENCODING_EVRCNW:
+            return 23;
         case ENCODING_INVALID:
         default:
             throw new IllegalArgumentException("Bad audio format " + audioFormat);
@@ -443,6 +481,12 @@ public class AudioFormat {
         case ENCODING_AAC_LC:
         case ENCODING_AAC_HE_V1:
         case ENCODING_AAC_HE_V2:
+        case ENCODING_AMRNB:
+        case ENCODING_AMRWB:
+        case ENCODING_EVRC:
+        case ENCODING_EVRCB:
+        case ENCODING_EVRCWB:
+        case ENCODING_EVRCNW:
             return true;
         default:
             return false;
@@ -483,6 +527,12 @@ public class AudioFormat {
         case ENCODING_AAC_LC:
         case ENCODING_AAC_HE_V1:
         case ENCODING_AAC_HE_V2:
+        case ENCODING_AMRNB:
+        case ENCODING_AMRWB:
+        case ENCODING_EVRC:
+        case ENCODING_EVRCB:
+        case ENCODING_EVRCWB:
+        case ENCODING_EVRCNW:
             return false;
         case ENCODING_INVALID:
         default:
@@ -715,6 +765,12 @@ public class AudioFormat {
                 case ENCODING_E_AC3:
                 case ENCODING_DTS:
                 case ENCODING_DTS_HD:
+                case ENCODING_AMRNB:
+                case ENCODING_AMRWB:
+                case ENCODING_EVRC:
+                case ENCODING_EVRCB:
+                case ENCODING_EVRCWB:
+                case ENCODING_EVRCNW:
                     mEncoding = encoding;
                     break;
                 case ENCODING_INVALID:
@@ -859,7 +915,13 @@ public class AudioFormat {
         ENCODING_AC3,
         ENCODING_E_AC3,
         ENCODING_DTS,
-        ENCODING_DTS_HD
+        ENCODING_DTS_HD,
+        ENCODING_AMRNB,
+        ENCODING_AMRWB,
+        ENCODING_EVRC,
+        ENCODING_EVRCB,
+        ENCODING_EVRCWB,
+        ENCODING_EVRCNW
     })
     @Retention(RetentionPolicy.SOURCE)
     public @interface Encoding {}
diff --git a/media/java/android/media/AudioRecord.java b/media/java/android/media/AudioRecord.java
index 974b62e..8b7a396 100644
--- a/media/java/android/media/AudioRecord.java
+++ b/media/java/android/media/AudioRecord.java
@@ -643,6 +643,12 @@ public class AudioRecord
         case AudioFormat.ENCODING_PCM_FLOAT:
         case AudioFormat.ENCODING_PCM_16BIT:
         case AudioFormat.ENCODING_PCM_8BIT:
+        case AudioFormat.ENCODING_AMRNB:
+        case AudioFormat.ENCODING_AMRWB:
+        case AudioFormat.ENCODING_EVRC:
+        case AudioFormat.ENCODING_EVRCB:
+        case AudioFormat.ENCODING_EVRCWB:
+        case AudioFormat.ENCODING_EVRCNW:
             mAudioFormat = audioFormat;
             break;
         default:
@@ -845,12 +851,27 @@ public class AudioRecord
         case (AudioFormat.CHANNEL_IN_FRONT | AudioFormat.CHANNEL_IN_BACK):
             channelCount = 2;
             break;
+        case AudioFormat.CHANNEL_IN_5POINT1:
+            channelCount = 6;
+            break;
         case AudioFormat.CHANNEL_INVALID:
         default:
             loge("getMinBufferSize(): Invalid channel configuration.");
             return ERROR_BAD_VALUE;
         }
 
+        // PCM_8BIT is not supported at the moment
+        if (audioFormat != AudioFormat.ENCODING_PCM_16BIT
+            && audioFormat != AudioFormat.ENCODING_AMRNB
+            && audioFormat != AudioFormat.ENCODING_AMRWB
+            && audioFormat != AudioFormat.ENCODING_EVRC
+            && audioFormat != AudioFormat.ENCODING_EVRCB
+            && audioFormat != AudioFormat.ENCODING_EVRCWB
+            && audioFormat != AudioFormat.ENCODING_EVRCNW) {
+            loge("getMinBufferSize(): Invalid audio format.");
+            return ERROR_BAD_VALUE;
+        }
+
         int size = native_get_min_buff_size(sampleRateInHz, channelCount, audioFormat);
         if (size == 0) {
             return ERROR_BAD_VALUE;
diff --git a/media/java/android/media/MediaFile.java b/media/java/android/media/MediaFile.java
index 22669a5..e91548c 100644
--- a/media/java/android/media/MediaFile.java
+++ b/media/java/android/media/MediaFile.java
@@ -46,6 +46,18 @@ public class MediaFile {
     private static final int FIRST_AUDIO_FILE_TYPE = FILE_TYPE_MP3;
     private static final int LAST_AUDIO_FILE_TYPE = FILE_TYPE_FLAC;
 
+    // More audio file types
+    public static final int FILE_TYPE_DTS   = 300;
+    public static final int FILE_TYPE_3GPA  = 301;
+    public static final int FILE_TYPE_AC3   = 302;
+    public static final int FILE_TYPE_QCP   = 303;
+    public static final int FILE_TYPE_PCM   = 304;
+    public static final int FILE_TYPE_EC3   = 305;
+    public static final int FILE_TYPE_AIFF  = 306;
+    public static final int FILE_TYPE_APE   = 307;
+    private static final int FIRST_AUDIO_FILE_TYPE_EXT = FILE_TYPE_DTS;
+    private static final int LAST_AUDIO_FILE_TYPE_EXT = FILE_TYPE_APE;
+
     // MIDI file types
     public static final int FILE_TYPE_MID     = 11;
     public static final int FILE_TYPE_SMF     = 12;
@@ -246,13 +258,21 @@ public class MediaFile {
         addFileType("DIVX", FILE_TYPE_DIVX, "video/divx");
         addFileType("FLV", FILE_TYPE_FLV, "video/flv");
         addFileType("MPD", FILE_TYPE_DASH, "application/dash+xml");
+        addFileType("QCP", FILE_TYPE_QCP, "audio/qcelp");
+        addFileType("AC3", FILE_TYPE_AC3, "audio/ac3");
+        addFileType("EC3", FILE_TYPE_EC3, "audio/eac3");
+        addFileType("AIF", FILE_TYPE_AIFF, "audio/x-aiff");
+        addFileType("AIFF", FILE_TYPE_AIFF, "audio/x-aiff");
+        addFileType("APE", FILE_TYPE_APE, "audio/x-ape");
     }
 
     public static boolean isAudioFileType(int fileType) {
         return ((fileType >= FIRST_AUDIO_FILE_TYPE &&
                 fileType <= LAST_AUDIO_FILE_TYPE) ||
                 (fileType >= FIRST_MIDI_FILE_TYPE &&
-                fileType <= LAST_MIDI_FILE_TYPE));
+                fileType <= LAST_MIDI_FILE_TYPE) ||
+                (fileType >= FIRST_AUDIO_FILE_TYPE_EXT &&
+                fileType <= LAST_AUDIO_FILE_TYPE_EXT));
     }
 
     public static boolean isVideoFileType(int fileType) {
diff --git a/media/java/android/media/MediaRecorder.java b/media/java/android/media/MediaRecorder.java
index ed2c4cbd..6dae6cc 100644
--- a/media/java/android/media/MediaRecorder.java
+++ b/media/java/android/media/MediaRecorder.java
@@ -345,6 +345,13 @@ public class MediaRecorder
 
         /** VP8/VORBIS data in a WEBM container */
         public static final int WEBM = 9;
+
+        /** @hide QCP file format */
+        public static final int QCP = 20;
+
+        /** @hide WAVE media file format*/
+        public static final int WAVE = 21;
+
     };
 
     /**
@@ -369,6 +376,12 @@ public class MediaRecorder
         public static final int AAC_ELD = 5;
         /** Ogg Vorbis audio codec */
         public static final int VORBIS = 6;
+        /** @hide EVRC audio codec */
+        public static final int EVRC = 10;
+        /** @hide QCELP audio codec */
+        public static final int QCELP = 11;
+        /** @hide Linear PCM audio codec */
+        public static final int LPCM = 12;
     }
 
     /**