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get file path stored in Application.persistentDataPath

Discussion in 'WebGL' started by shb, Feb 4, 2017.

  1. shb


    Oct 7, 2012
    Here is my situation.
    1. I need to play video on my webgl project.
    2. The video should come with extra downloading (asset bundles), not from embeded with build in StreamingAssets folder from initial download.
    3. I found WebGL Movie texture example by Unity from asset store.
    4. If I put my video in Streaming folder as it is, It works.
    5. To embed video file in asset bundles, I changed video file extension from .mp4->.txt then I assigned it to one of my script's TextAsset type public variable in inspector. then when it starts I copied back my TextAsset object to Application.persistenDataPath with it's original extension (.mp4)

    Code (CSharp):
    1. public TextAsset vidRaw;
    2.     void Start () {
    4.         string vidCachePath =  Application.persistentDataPath + "/vid.mp4";
    5.         Debug.Log ("vidCachePath:" + vidCachePath);
    7.         File.WriteAllBytes(vidCachePath, vidRaw.bytes);
    7. Then I tried to playback the video from the newly created video.
    Code (CSharp):
    1.   tex = new WebGLMovieTexture(vidCachePath);
    2.         cube.GetComponent<MeshRenderer>().material = new Material (Shader.Find("Diffuse"));
    3.         cube.GetComponent<MeshRenderer>().material.mainTexture = tex;

    8. But it doesn't work.
    I can see the video file created in indexedDB path like:
    and I can check the file size is also ok.

    But in jslib side, just passing the indexedDB path to the video.src doesn't seem to be enough.
    Code (JavaScript):
    1. WebGLMovieTextureCreate: function(url)
    2. {
    4.     var str = Pointer_stringify(url);
    6.     var video = document.createElement('video');
    7. = 'none';
    8.     video.src = str;
    10.     return videoInstances.push(video) - 1;
    11. },
    How Can I play video inside Application.persistentDataPath that starts with something like /idbfs/XXXX ?