将图像添加到 Reality Capture API 接受请求后文件大小为 0

Question

我目前正在使用 Reality Capture API。我正在 Mac 上开发并使用 Unity3D 作为我的主要开发工具。将图像添加到我的 PhotoScene 时，我看到每个文件大小导致大小为 0。我还看到通过 return 响应

每个请求只处理一个图像

在下面的文档中

https://forge.autodesk.com/en/docs/reality-capture/v1/tutorials/create-3d-mesh-from-photos/

在第 3 步中，将图片添加到 API，您可以通过路径上传。目前我的路径如下所示，图像总数增加到 350。如 API 所述，每个请求限制为 20 张图像。

/Users/kreutsx1/Documents/ImagesMe/0001.jpg

我用来创建请求和查看图像的代码如下，现在我只提交前 20 张图像的请求以验证它们是否被正确添加到场景中。

[ContextMenu("AddImages")]
    public async void AddImages()
    {
        PhotoSceneAddImage photosceneAddImage = new PhotoSceneAddImage();
        var url = "https://developer.api.autodesk.com/photo-to-3d/v1/file";

        WWWForm form = new WWWForm();
        photosceneAddImage.SceneID = sceneID;
        form.AddField("photosceneid", photosceneAddImage.SceneID);
        form.AddField("type", photosceneAddImage.Type);
        photosceneAddImage.FilePath = filePath;

        photosceneAddImage.Files = new String[photosceneAddImage.totalFiles];
        photosceneAddImage.Files = Directory.GetFiles(photosceneAddImage.FilePath);

        photosceneAddImage.totalFiles = photosceneAddImage.Files.Length;

        Debug.Log(photosceneAddImage.totalFiles);

        for (int i = 0; i < 20; i++) //20 is the total amount of images we can upload in a single request
        {
            form.AddField(String.Format("file[{0}]", photosceneAddImage.fileCount), photosceneAddImage.Files[i]);

            photosceneAddImage.fileCount++;
            Debug.Log(photosceneAddImage.fileCount);
        }


        using var www = UnityWebRequest.Post(url, form);

        Debug.Log(form.ToString());

        www.SetRequestHeader("Authorization", "Bearer " + token);
        www.SetRequestHeader("Content-Type", "multipart/form-data");

        var operation = www.SendWebRequest();

        while (!operation.isDone)
            await Task.Yield();

        if (www.result == UnityWebRequest.Result.Success)
        {

            Debug.Log($"Success: {www.downloadHandler.text}");
            var deserializedPostData = JsonUtility.FromJson<PostResult>(www.downloadHandler.text);
            Debug.Log(deserializedPostData.success);
            string response = System.Text.Encoding.UTF8.GetString(www.downloadHandler.data);
        }
        else
        {
            Debug.Log($"Failed: {www.error}");
        }


    }

我将我的 Post 请求提交给 API 并得到以下 returned 响应

{"Usage":"1.0667450428009",
"Resource":"\/file",
"photosceneid":"jz4IuwGoPy6nT1isatnezWwnuZBiMYG3DqOSkulAOQQ",
"Files":{"file":{"filename":"1.jpg","fileid":"AxyOFMJOBN1wyUgKQoXQrioUrhLPbU3apE8W6Ih5m2M=-001","filesize":"0","msg":"No error","url":"https:\/\/adsk-rc-photofly-prod.s3.amazonaws.com\/IMAGES\/AxyO\/FMJO\/BN1w\/yUgK\/QoXQ\/rioU\/rhLP\/bU3a\/pE8W\/6Ih5\/m2M%3D-001?x-amz-server-side-encryption=AES256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEPz%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCXVzLWVhc3QtMSJHMEUCIQC2iNoL1MNS2cN4EJwprPdr4kC4zE16dTE8t5Htv%2Fr8fQIgVo8NqtHMl3Erhph1vvniO9YQYvoBFzV5eUf2mpDxzJ4qvQMIlf%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARAAGgw0MzY5MDc0MzgyMzYiDGY88UZM%2BhV%2F%2BzhfbyqRA8gY%2FK7MwV5SKcMM9lpo4Y2Tdzejnw0%2BdBswlX%2BkNDM9SaBlnjh2JE%2FoTv0%2BZyAGGhMQ0JzlyunJufMB5xA3Ty8YDt9Kl4BmcCtbX0U4iBkLG4ccbFX1EfHj3YostA371hQuheiGm15RVv1bkrEgHINM%2FjmARrMsHYsnXW%2F4GzXOihtLXDOu5hyqkjnbBZ32ZlSDUJvpk2EUVC%2BcF6%2BzMRa4dcNhMr%2FiUL3BVKX9rmJhk9SFirw0NYVgBUqhhMvQT0%2B0iPJw61fb557fPGvX9cFu9GH4Mu7qcytwCzFe%2BqEsbdgDjaMaYEqmNFoZXPw3zM2G7Jv3974og9tT7BXbNbp5cPTtiB2NJ4kfO4nEfRiuqXrOFliFRk2y0mn9H3DzTiVuVZ52jlAPYbyZsu%2FgGEd7Cel%2FqGCvq5kEVeK%2F6evoHV9YvFzmS3sQwBEWRMjZKdGp5TH5MM1%2BjlGDBcL2dLKVJYE6NfLjyGLIbuosMO7paWZhGEh%2Fr0sD3KR9BXRIwKzOflCAgTRnsT42Hj9W8n0iMMv3moUGOusBX1cXrOSXyTrkGs0UVo7aFaugYgUosCGkJHhcCaZoq94YgU1ZeVIqR%2FqgTXbX9F937FbJ9rZNwz7PoX7a5iMOrOYcGTlHk5LBCA5H4%2FPMLUGqKNBLnNVpTYA3Xb%2Bv%2F3ItycqdKqagqINA4sVlqqZ%2BK4wcaXVZhMVO7wZ2bDFH6rE0eg0LyCL%2BFz7qVqDZoxtQzg1ilLKt4XmyX4qVTsycgX882V7f4dWa2wIm10xTqSKZ1OaeF31gl2CFH8QeNWKxm2MztmzKQDPRCHfzBBkKptYqToIzj5I4z7AycIAuNN80nb6LK1OwXHepuQ%3D%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAWLONWOCOAUKYLIWW%2F20210520%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20210520T194701Z&X-Amz-SignedHeaders=host%3Bx-amz-server-side-encryption&X-Amz-Expires=7200&X-Amz-Signature=e06ce57a531f31a68f0121345c59c0dd9c9571c5dffffb7204fcb21d09a52b0e"}}}

据我所知，我有两个问题，

生成的文件大小"filesize":"0"
即使使用以下方法将分配的最多 20 张图像添加到我的表单中，我也只看到单个图像被添加到场景中。

        for (int i = 0; i < 20; i++) //20 is the total amount of images we can upload in a single request
        {
            form.AddField(String.Format("file[{0}]", photosceneAddImage.fileCount), photosceneAddImage.Files[i]);

            photosceneAddImage.fileCount++;
            Debug.Log(photosceneAddImage.fileCount);
        }

更新

我一直在检查代码并更新为以下内容

[ContextMenu("AddImages")]
    public async void AddImages()
    {
        PhotoSceneAddImage photosceneAddImage = new PhotoSceneAddImage();
        var url = "https://developer.api.autodesk.com/photo-to-3d/v1/file";

        WWWForm form = new WWWForm();
        photosceneAddImage.SceneID = sceneID;
        form.AddField("photosceneid", sceneID);
        form.AddField("type", photosceneAddImage.Type);
        photosceneAddImage.FilePath = filePath;

        photosceneAddImage.Files = new String[photosceneAddImage.totalFiles];
        photosceneAddImage.Files = Directory.GetFiles(photosceneAddImage.FilePath);

        
        photosceneAddImage.totalFiles = photosceneAddImage.Files.Length;
        for (int i = 0; i < 20; i++) //20 is the total amount of images we can upload in a single request
        {
            byte[] img = File.ReadAllBytes("/Users/kreutsx1/Documents/ImagesMe/" + String.Format("{0}.jpg", photosceneAddImage.fileCount + 1));
            form.AddBinaryData(String.Format("file[{0}]", photosceneAddImage.fileCount+1), img);
            photosceneAddImage.fileCount++;
            Debug.Log(photosceneAddImage.fileCount);
        }

        
        Debug.Log(photosceneAddImage.totalFiles);
        using var www = UnityWebRequest.Post(url, form);
        Debug.Log(www.responseCode);
        www.SetRequestHeader("Authorization", "Bearer " + token);
        www.SetRequestHeader("Content-Type", "multipart/form-data");

        Debug.Log(form.data);

        Debug.Log(www.GetRequestHeader("photosceneid") + "PhotoId");
 
        var operation = www.SendWebRequest();
        if(www.uploadProgress <1)
        {
            Debug.Log(www.uploadProgress);
        }
        while (!operation.isDone)
        {
            if (www.uploadProgress < 1f)
            {
                Debug.Log(www.uploadProgress);
            }
            else
            {
                Debug.Log("finished");
            }
            await Task.Yield();
        }

        if (www.result == UnityWebRequest.Result.Success)
        {

            Debug.Log($"Success: {www.downloadHandler.text}");
            var deserializedPostData = JsonUtility.FromJson<PostResult>(www.downloadHandler.text);
            Debug.Log(deserializedPostData.success);

            string response = System.Text.Encoding.UTF8.GetString(www.downloadHandler.data);
        }
        else
        {
            Debug.Log($"Failed: {www.error}");
        }


    }

我仍然无法实现上传，因为当前代码是return请求的以下响应

"Usage":"2.1459798812866","Resource":"\/file","Error":{"code":"19","msg":"Specified Photoscene ID doesn't exist in the database"}}
UnityEngine.Debug:Log (object)

我在调试过程中注意到，在删除以下代码片段后，我不再收到 error code 19 。但是，当尝试使用其字节数据添加甚至单个图像时 returned 到没有 Photoscene ID 的问题。

        for (int i = 0; i < 20; i++) //20 is the total amount of images we can upload in a single request
        {
            byte[] img = File.ReadAllBytes("/Users/kreutsx1/Documents/ImagesMe/" + String.Format("{0}.jpg", photosceneAddImage.fileCount + 1));
            form.AddBinaryData(String.Format("file[{0}]", photosceneAddImage.fileCount+1), img);
            photosceneAddImage.fileCount++;
            Debug.Log(photosceneAddImage.fileCount);
        }

Answer 1

看起来问题出在代码级别。如果文件显示在 photoscene 中，但文件大小为零，则表示文件已分配，但“上传协议”错误。根据我的拙见，这通常是由于内容类型或文件上传错误。

我对 Unity 和 C# 都不是很“精通技术”，但我的建议是尝试上传它而不是“multipart/form-data”，而是“application/x-www-form-urlencoded”。

只需在 Unity 之外的 vanilla C# 环境中尝试这样的事情：

var client = new RestClient("https://developer.api.autodesk.com/photo-to-3d/v1/file");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddHeader("Content-Type", "application/x-www-form-urlencoded");
request.AddHeader("Authorization", "Bearer <YOUR_TOKEN_HERE>");
request.AddParameter("photosceneid", "<YOUR_PHOTOSCENE_ID_HERE>");
request.AddParameter("type", "image");
request.AddFile("file[0]", "/C:/Users/denix/Downloads/20160625_081727.jpg");
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);

我建议，在开始编写代码之前，检查 Postman 之类的 Reality Capture 工作流，以适应 API 和最终的问题。看看这篇博文：https://forge.autodesk.com/blog/hitchhikers-guide-reality-capture-api

在这里，您不仅可以找到随时可用的 Postman Collection，还可以找到未记录的调用，例如调查照片场景内容以查看上传文件的数量及其大小。

将图像添加到 Reality Capture API 接受请求后文件大小为 0

Adding Images to Reality Capture API Results in file size of 0 after accepted request

rest

file-upload

unity3d

autodesk-forge

autodesk-realitycapture