WAF/RF64 : Workaround for badly formatted data chunk size [#191]

Zeugma440 · Apr 2, 2023 · 2d75165 · 2d75165
1 parent 6736a99
commit 2d75165
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/ATL/AudioData/IO/WAV.cs b/ATL/AudioData/IO/WAV.cs
@@ -340,7 +340,9 @@ private bool readWAV(Stream source, ReadTagParams readTagParams)
                 else if (subChunkId.Equals(CHUNK_DATA, StringComparison.OrdinalIgnoreCase))
                 {
                     AudioDataOffset = chunkDataPos;
-                    if (uint.MaxValue == chunkSize) chunkSize = AudioDataSize; // Already set by DS64
+                    // Handle RF64 where size has already been set by DS64
+                    // NB : Some files in the wild can have an erroneous size of 0x00FFFFFF
+                    if (AudioDataSize > 0 && (uint.MaxValue == chunkSize || 0x00FFFFFF == chunkSize)) chunkSize = AudioDataSize;
                     else AudioDataSize = chunkSize;
                     headerSize = riffChunkSize - AudioDataSize;
                     formattedRiffChunkSize = getFormattedRiffChunkSize(riffChunkSize, isRf64);