Supports FLAC files with high sample rate (176400 and 192000).

Also add testing media to verify FLAC extension can play these sample rates.

Github: #3769.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=192783193

RELEASENOTES.md

@@ -34,8 +34,11 @@
 * IMA: Allow setting the ad media load timeout
   ([#3691](https://github.com/google/ExoPlayer/issues/3691)).
 * Audio:
-  * FLAC: Sniff FLAC files correctly if they have ID3 headers
+  * FLAC:
+    * Sniff FLAC files correctly if they have ID3 headers
       ([#4055](https://github.com/google/ExoPlayer/issues/4055)).
+    * Supports FLAC files with high sample rate (176400 and 192000)
+      ([#3769](https://github.com/google/ExoPlayer/issues/3769)).
   * Factor out `AudioTrack` position tracking from `DefaultAudioSink`.
   * Fix an issue where the playback position would pause just after playback
     begins, and poll the audio timestamp less frequently once it starts

extensions/flac/src/main/jni/flac_parser.cc

@@ -319,6 +319,8 @@ bool FLACParser::decodeMetadata() {
       case 48000:
       case 88200:
       case 96000:
+      case 176400:
+      case 192000:
         break;
       default:
         ALOGE("unsupported sample rate %u", getSampleRate());