Fix TrueHD chunking in Matroska

Issue: #6845
PiperOrigin-RevId: 288688716

RELEASENOTES.md

@@ -14,6 +14,8 @@
   to proceed.
 * Fix handling of E-AC-3 streams that contain AC-3 syncframes
   ([#6602](https://github.com/google/ExoPlayer/issues/6602)).
+* Fix playback of TrueHD streams in Matroska
+  ([#6845](https://github.com/google/ExoPlayer/issues/6845)).
 * Support "twos" codec (big endian PCM) in MP4
   ([#5789](https://github.com/google/ExoPlayer/issues/5789)).
 * WAV: Support IMA ADPCM encoded data.

library/core/src/main/java/com/google/android/exoplayer2/extractor/mkv/MatroskaExtractor.java

@@ -1827,10 +1827,8 @@ public class MatroskaExtractor implements Extractor {
       chunkSize += size;
       chunkOffset = offset; // The offset is to the end of the sample.
       if (chunkSampleCount >= Ac3Util.TRUEHD_RECHUNK_SAMPLE_COUNT) {
-        // We haven't read enough samples to output a chunk.
-        return;
+        outputPendingSampleMetadata(track);
       }
-      outputPendingSampleMetadata(track);
     }
 
     public void outputPendingSampleMetadata(Track track) {