Why does AudioSource.time return Infinity in Unity 5.3?

Question

I have a MovieTexture file in my project, and I want to keep track with the time based on the audio time. It works fine in Unity 5.1, but when I switch to 5.3, the AudioSource.time just returns Infinity. Does anyone know what has been changed. Here is a snippet of my code. Thank you!

 public void processVideoFile(){
         GameObject.Find("Video Frame").GetComponent<RawImage> ().texture = movie as MovieTexture;
         audio =  gameObject.GetComponent<AudioSource> ();
         audio.clip = movie.audioClip;
         movie.loop = false;
         videoIsProcessed = true;
     }
 
 void LateUpdate () {
         if (videoIsProcessed) {
             if (!movie.isPlaying && !pausing) {
                 gameObject.GetComponent<LessonManagerScript>().loadVideo(gameObject.GetComponent<LessonManagerScript>().currentButton);
                 playButton.gameObject.GetComponent<Image> ().enabled = true;
             }
             if(!pausing){
             timeStamp = audio.time + timeOffSet;
             }
             Debug.Log("Audio time is: "+audio.time+" and timeStamp is: "+timeStamp);
         }
     }

Answer 1

Answer by baopham · Jan 22, 2016 at 12:39 AM

I found a workaround it! I used a Stopwatch from System.Dianogtics to replace the audio.time.

However, this is a bug from Unity 5.3 (I'm pretty sure).

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remi-san · Jan 31, 2016 at 11:14 PM 0

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I also do have that exact same bug.

Is there anyone else affected by this?

That's pretty annoying.

Answer 2

Answer by wasam · Feb 02, 2016 at 10:44 AM

At the moment AudioClip.frequency seems to return 0 for MovieTextures.

This probably causes AudioSource.time to return "infinity".

I assume that AudioClip.frequency should return 48000 for MovieTextures, so you can create your own, corrected, version for now:

 public AudioSource audioSource;
 const int CLIP_FREQUENCY = 48000;
 
 void Update () {
     float time = audioSource.timeSamples * 1f / CLIP_FREQUENCY; 
 }

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Why does AudioSource.time return Infinity in Unity 5.3?

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