option to use detected song length

[sketchbook22]

By default you use 90 seconds as the duration, which in many cases might be good.
However if I have a whole folder of songs that I would like to use the entire song, it would be nice if I could tell it to use the detected song length.

I have an idea of what the code change would be.

example command
java -jar AutoStepper.jar input="./songs/" duration=-1

src/autostepper/AutoStepper.java
line 285

float songTime = stream.getMillisecondLength() / 1000f;
if( duration == -1f ) duration = songTime;

side note:
your readme file says "common line with arguments"
I'm nearly certain it should say "command line with arguments"

[mrlazygreen]

Did anyone try this?

[tyler-depke]

I'm not a coder and I tried a little ChatGPT with no success.

It wanted me to replace line 83 which has :
duration = Float.parseFloat(getArg(args, "duration", "90"));
with
duration = Float.parseFloat(getArg(args, "duration", String.valueOf(getAudioFileDuration(inputFilePath))));

It also wanted me to add this:

private float getAudioFileDuration(String filePath) {
    try {
        File audioFile = new File(filePath);
        AudioFileFormat fileFormat = AudioSystem.getAudioFileFormat(audioFile);
        if (fileFormat.properties().containsKey("duration")) {
            long microseconds = (Long) fileFormat.properties().get("duration");
            return microseconds / 1_000_000.0f; // Convert microseconds to seconds
        }
    } catch (Exception e) {
        e.printStackTrace(); // Optional: handle more gracefully in production code
    }
    // Return a default value if there's an issue
    return 90.0f;
}

toward the beginning but I couldn't figure it out. Would love to see a solution made as having the option or default to the entire song duration would be SUPER helpful!

[tyler-depke]

I originally just tried setting the duration to be super long like 900, but when I did that it seemed like even though it made arrows for that amount of time, the songs would fade after 90s while playing them. I couldn't figure out what was wrong with the .SM files.

Now I tried again but did a shorter amount like 400 and it seems like it works for a lot of songs. I have 2 questions now:

1. Is there a duration limitation? If so, what is it?
2. If you put in a duration and you have some songs longer and some shorter than that duration, what is the behavior? Do the songs that are shorter than the duration go to completion?