Bug 1051666 - Add avc3 atom support to MP4 parser; r=edwin

media/libstagefright/frameworks/av/media/libstagefright/MPEG4Extractor.cpp

@@ -314,6 +314,7 @@ static const char *FourCC2MIME(uint32_t fourcc) {
             return MEDIA_MIMETYPE_VIDEO_H263;
 
         case FOURCC('a', 'v', 'c', '1'):
+        case FOURCC('a', 'v', 'c', '3'):
             return MEDIA_MIMETYPE_VIDEO_AVC;
 
         default:
@@ -1297,6 +1298,7 @@ status_t MPEG4Extractor::parseChunk(off64_t *offset, int depth) {
         case FOURCC('H', '2', '6', '3'):
         case FOURCC('h', '2', '6', '3'):
         case FOURCC('a', 'v', 'c', '1'):
+        case FOURCC('a', 'v', 'c', '3'):
         {
             mHasVideo = true;