Ambisonic bwav files cannot be written and don't throw an exception

[drunkenQCat]

The problem

I recorded some wav file with Zoom h3 vr, When I want to edit its metadata, I found that nothing happened. So I tried to debug the code, I found that in file saving process, the stream of file thrown such Excption:

Handle = “((System.IO.FileStream)stream).Handle”caused Exception type “System.ObjectDisposedException”

Environment

• ATL version (or git revision) that exhibits the issue:5.16
• Last ATL version that did not exhibit the issue (if applicable):5.8
• OS/version used to run ATL: windows 11

Details

If necessary, describe the problem you have been experiencing in more detail. here is a file head of the ambisonics file:ambisonics file head.txt

Don't forget to include ATL.Logging.Log and/or console output ATL_LOG.log

Code To Reproduce Issue [ Good To Have ]

    public async Task WriteMetaData()
    {

        ATL.Logging.LogDelegator.SetLog(ref atlLog);
        atlLog.Register(Instance);
        Task WriteSingleBwf(FileInfo bwf, SlateLogItem item)
        {
            Track tr = new(bwf.FullName);
            var originalNote = "";
            try
            {
                originalNote = tr.AdditionalFields["ixml.Note"];
            }
            catch
            {
                originalNote = "";
            }

            var editedNote = item.scnNote + "," + item.shtNote + originalNote;
            WriteAdditional(tr, "ixml.SCENE", item.scn + "-" + item.sht);
            WriteAdditional(tr, "ixml.TAKE", item.tk.ToString());
            WriteAdditional(tr, "ixml.NOTE", editedNote);
            WriteAdditional(tr, "ixml.CIRCLED", (item.okTk == TkStatus.ok) ? "TRUE" : "FALSE");
            WriteAdditional(tr, "ixml.TAKE_TYPE", (item.okTk == TkStatus.bad) ? "NO_GOOD" : "DEFAULT");
            WriteAdditional(tr, "ixml.WILD_TRACK", (item.tkNote.Contains("wild")) ? "TRUE" : "FALSE");
            // WriteTrackList(tr, item.trackList);
            tr.Description = item.tkNote;
            tr.Title = item.shtNote;
            tr.Save();
            Console.WriteLine($"{tr.Path} loaded");
            return Task.CompletedTask;
        }

        List<Task> taskList = new();
        foreach (var item in LogList)
        {
            foreach (var bwf in item.bwfList)
            {
                taskList.Add(WriteSingleBwf(bwf, item));
            }
        }

        await Task.WhenAll(taskList);
    }
    void WriteAdditional(Track tr, string tag, string content)
    {
        if (tr.AdditionalFields.ContainsKey(tag)) tr.AdditionalFields[tag] = content;
        else tr.AdditionalFields.Add(tag, content);
    }

Please remember that with sample code it's easier to reproduce the bug and it's much faster to fix it.

[Zeugma440]

Hi and thanks for your detailed feedback!

These files having extra information in their header shouldn't cause any issue.

According to the log, it looks like there's an encoding issue within the file you produced.

Could you please upload it using a 3rd party host (e.g. dropbox, mega) so that I can test it myself?

If you don't want to post it here you can send it to me using [my github username] at (hotmail) dot com

[drunkenQCat]

sure, I've uploaded it on google drive and sent the link by email. thx for your concerning.

[Zeugma440]

Got it, thanks. Looks like I didn't anticipate iXML chunks to be padded with 0xFF bytes. Everything work fine now~

[Zeugma440]

Fix is available in today's v5.17.

Please close the issue if it's OK on your side.

[drunkenQCat]

Marvelous~ it just works! sincerely thank you!