Use passthrough decoder for (E)AC3 formats

media/base/android/sdk_media_codec_bridge.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/base/android/sdk_media_codec_bridge.h"
 
 #include <algorithm>
 #include <limits>
 #include <memory>
 #include <utility>
@@ skipping 42 matching lines @@
 static const std::string AudioCodecToAndroidMimeType(const AudioCodec& codec) {
   switch (codec) {
     case kCodecMP3:
       return "audio/mpeg";
     case kCodecVorbis:
       return "audio/vorbis";
     case kCodecOpus:
       return "audio/opus";
     case kCodecAAC:
       return "audio/mp4a-latm";
+    // Use passthrough decoder for (E)AC3.
     case kCodecAC3:
-      return "audio/ac3";
     case kCodecEAC3:
-      return "audio/eac3";
+      return "audio/raw";
     default:
       return std::string();
   }
 }
 
 static const std::string VideoCodecToAndroidMimeType(const VideoCodec& codec) {
   switch (codec) {
     case kCodecH264:
       return "video/avc";
     case kCodecHEVC:
@@ skipping 603 matching lines @@
   if (adaptive_playback_supported_for_testing_ == 0)
     return false;
   else if (adaptive_playback_supported_for_testing_ > 0)
     return true;
   JNIEnv* env = AttachCurrentThread();
   return Java_MediaCodecBridge_isAdaptivePlaybackSupported(env, media_codec(),
                                                            width, height);
 }
 
 }  // namespace media