Add AMR-NB and AMR-WB support to ExoPlayer

library/src/main/java/com/google/android/exoplayer/extractor/mp4/Atom.java

@@ -111,6 +111,8 @@ import java.util.List;
   public static final int TYPE_co64 = Util.getIntegerCodeForString("co64");
   public static final int TYPE_tx3g = Util.getIntegerCodeForString("tx3g");
   public static final int TYPE_stpp = Util.getIntegerCodeForString("stpp");
+  public static final int TYPE_samr = Util.getIntegerCodeForString("samr");
+  public static final int TYPE_sawb = Util.getIntegerCodeForString("sawb");
 
   public final int type;
 

library/src/main/java/com/google/android/exoplayer/extractor/mp4/AtomParsers.java

@@ -452,7 +452,8 @@ import java.util.List;
       } else if (childAtomType == Atom.TYPE_mp4a || childAtomType == Atom.TYPE_enca
           || childAtomType == Atom.TYPE_ac_3 || childAtomType == Atom.TYPE_ec_3
           || childAtomType == Atom.TYPE_dtsc || childAtomType == Atom.TYPE_dtse
-          || childAtomType == Atom.TYPE_dtsh || childAtomType == Atom.TYPE_dtsl) {
+          || childAtomType == Atom.TYPE_dtsh || childAtomType == Atom.TYPE_dtsl
+          || childAtomType == Atom.TYPE_samr || childAtomType == Atom.TYPE_sawb) {
         parseAudioSampleEntry(stsd, childAtomType, childStartPosition, childAtomSize, trackId,
             durationUs, language, isQuickTime, out, i);
       } else if (childAtomType == Atom.TYPE_TTML) {
@@ -732,6 +733,10 @@ import java.util.List;
       mimeType = MimeTypes.AUDIO_DTS;
     } else if (atomType == Atom.TYPE_dtsh || atomType == Atom.TYPE_dtsl) {
       mimeType = MimeTypes.AUDIO_DTS_HD;
+    } else if (atomType == Atom.TYPE_samr) {
+      mimeType = MimeTypes.AUDIO_AMR_NB;
+    } else if (atomType == Atom.TYPE_sawb) {
+      mimeType = MimeTypes.AUDIO_AMR_WB;
     }
 
     byte[] initializationData = null;

library/src/main/java/com/google/android/exoplayer/util/MimeTypes.java

@@ -51,6 +51,8 @@ public final class MimeTypes {
   public static final String AUDIO_DTS_HD = BASE_TYPE_AUDIO + "/vnd.dts.hd";
   public static final String AUDIO_VORBIS = BASE_TYPE_AUDIO + "/vorbis";
   public static final String AUDIO_OPUS = BASE_TYPE_AUDIO + "/opus";
+  public static final String AUDIO_AMR_NB = BASE_TYPE_AUDIO + "/3gpp";
+  public static final String AUDIO_AMR_WB = BASE_TYPE_AUDIO + "/amr-wb";
 
   public static final String TEXT_UNKNOWN = BASE_TYPE_TEXT + "/x-unknown";
   public static final String TEXT_VTT = BASE_TYPE_TEXT + "/vtt";