An exception occurs in ScdFile#GetAudio()

[ikafly144]

When calling GetAudio() with an OGG format ScdFile, an "Argument Exception: length is larger than sourceArray" exception occurs in Array.Copy.
After checking SaintCoinach's implementation and the SCD format, I confirmed that deleting line 517 (probably) corrects the problem, but I don't really understand how this works.
SaintCoinach Implementation

Lumina/src/Lumina/Data/Files/ScdFile.cs

Line 517 in a268028

Reader.Position = subInfoStartPos + audioBasicDesc.SubInfoSize;

[NotAdam]

I can check this properly tomorrow - what file did you actually see this on? Just so I don't have to go digging

[ikafly144]

Sorry for the late reply.
The same error occurs with scd files in music/, such as music/ex1/bgm_ex1_alex01.scd, which are saved in OGG format.

System.ArgumentException : Source array was not long enough. Check the source index, length, and the array's lower bounds. (Parameter 'sourceArray')
    Array.CopyImpl(Array sourceArray, Int32 sourceIndex, Array destinationArray, Int32 destinationIndex, Int32 length, Boolean reliable)
    Array.Copy(Array sourceArray, Int32 sourceIndex, Array destinationArray, Int32 destinationIndex, Int32 length)
    ScdFile.GetAudio(Int32 index) 行 521
    LuminaTests.ScdFilesAreLoadedCorrectly() 行 32
    RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
    MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)

• used test code

    [RequiresGameInstallationFact]
    public void ScdFilesAreLoadedCorrectly()
    {
        var gameData = RequiresGameInstallationFact.CreateGameData();
        var file = gameData.GetFile<ScdFile>( "music/ex1/bgm_ex1_alex01.scd" );

        Assert.NotNull( file );
        Assert.NotEmpty( file.Data );
        Assert.True( file.AudioDataCount > 0 );
        Assert.NotNull( file.GetAudio( 0 ) );
        Assert.True( file.SoundDataCount > 0 );
        Assert.NotNull( file.GetSound( 0 ) );
        Assert.True( file.TrackDataCount > 0 );
        Assert.NotNull( file.GetTrack( 0 ) );

    }

[ikafly144]

In the case of music/ex1/bgm_ex1_alex01.scd, when I checked the values ​​on line 517 of Lumina/src/Lumina/Data/Files/ScdFile.cs with a debugger, I found that Reader.Position before the assignment was 0x0000000000000d68, subInfoStartPos was 0x0000000000000250, and audioBasicDesc.SubInfoSize was 0x00001c6f.