Content Moderation:Video moderation

The video moderation API supports two detection modes: synchronous and asynchronous.

• If you use synchronous video moderation, you can submit only a sequence of frames captured from a video for moderation. For more information about the related parameters, see /green/video/syncscan.

• (Recommended) If you use asynchronous video moderation, you can submit a video or a sequence of frames captured from the video for moderation. For more information about the related parameters, see /green/video/asyncscan and /green/video/results.

The dependencies for Content Moderation SDK for .NET are installed. For more information about how to install the dependencies, see Installation.

Sample code:

• Submit the URL of an online video for video moderation

  using System;
  using Newtonsoft.Json;
  using Aliyun.Acs.Core;
  using Aliyun.Acs.Core.Http;
  using Aliyun.Acs.Core.Profile;
  using Aliyun.Acs.Green.Model.V20180509;
  using System.Collections.Generic;
  
  namespace csharp_sdk_sample
  {
      class Program
      {
          static void Main(string[] args)
          {
              /**
               * Common ways to get environment variables:
               *     Get the AccessKey ID of the RAM user: Environment.GetEnvironmentVariable("ALIBABA_CLOUD_ACCESS_KEY_ID");
               *     Get the AccessKey secret of the RAM user: Environment.GetEnvironmentVariable("ALIBABA_CLOUD_ACCESS_KEY_SECRET");
               */
              DefaultProfile profile = DefaultProfile.GetProfile(
                      "cn-shanghai",
                      "Get the AccessKey ID of the RAM user from an environment variable",
                      "Get the AccessKey secret of the RAM user from an environment variable");
              // Note: Reuse the instantiated client as much as possible to improve detection performance and avoid repeated connections.
              DefaultAcsClient client = new DefaultAcsClient(profile);
  
              VideoAsyncScanRequest request = new VideoAsyncScanRequest();
              request.AcceptFormat = FormatType.JSON;
              request.ContentType = FormatType.JSON;
              request.Method = MethodType.POST;
              request.Encoding = "UTF-8";
  
              Dictionary<string, object> task1 = new Dictionary<string, object>();
              task1.Add("dataId", "Data ID for detection");
              task1.Add("url", "URL of the video to be detected");
  
              // scenes: The detection scenarios. You can specify multiple scenarios.
              // callback and seed are optional parameters used for callback notifications.
              Dictionary<string, object> httpBody = new Dictionary<string, object>();
              httpBody.Add("scenes", new List<string> { "porn", "terrorism" });
              httpBody.Add("bizType", "Business scenario");
              httpBody.Add("callback", "Webhook address");
              httpBody.Add("seed", "Random string");
              httpBody.Add("tasks", new List<Dictionary<string, object>> { task1 });
  
              request.SetContent(System.Text.Encoding.Default.GetBytes(JsonConvert.SerializeObject(httpBody)), "utf-8", FormatType.JSON);
              try
              {
                  VideoAsyncScanResponse response = client.GetAcsResponse(request);
                  if (response.HttpResponse.Status != 200)
                  {
                      Console.WriteLine("the request failed. status:{0}", response.HttpResponse.Status);
                  }
                  Console.WriteLine(System.Text.Encoding.Default.GetString(response.HttpResponse.Content));
              }
              catch (Exception ex)
              {
                  Console.WriteLine("Failed with error info: {0}", ex.Message);
              }
          }
      }
  }

• Submit a video live stream for video moderation

  using System;
  using Newtonsoft.Json;
  using Aliyun.Acs.Core;
  using Aliyun.Acs.Core.Http;
  using Aliyun.Acs.Core.Profile;
  using Aliyun.Acs.Green.Model.V20180509;
  using System.Collections.Generic;
  
  namespace csharp_sdk_sample
  {
      class Program
      {
          static void Main(string[] args)
          {
              /**
               * Common ways to get environment variables:
               *     Get the AccessKey ID of the RAM user: Environment.GetEnvironmentVariable("ALIBABA_CLOUD_ACCESS_KEY_ID");
               *     Get the AccessKey secret of the RAM user: Environment.GetEnvironmentVariable("ALIBABA_CLOUD_ACCESS_KEY_SECRET");
               */
              DefaultProfile profile = DefaultProfile.GetProfile(
                      "cn-shanghai",
                      "Get the AccessKey ID of the RAM user from an environment variable",
                      "Get the AccessKey secret of the RAM user from an environment variable");
              // Note: Reuse the instantiated client as much as possible to improve detection performance and avoid repeated connections.
              DefaultAcsClient client = new DefaultAcsClient(profile);
  
              VideoAsyncScanRequest request = new VideoAsyncScanRequest();
              request.AcceptFormat = FormatType.JSON;
              request.ContentType = FormatType.JSON;
              request.Method = MethodType.POST;
              request.Encoding = "UTF-8";
  
              Dictionary<string, object> task1 = new Dictionary<string, object>();
              task1.Add("dataId", "Data ID for detection");
              // Set url to the streaming URL.
              task1.Add("url", "URL of the video to be detected");
  
              // scenes: The detection scenarios. You can specify multiple scenarios.
              // callback and seed are optional parameters used for callback notifications.
              Dictionary<string, object> httpBody = new Dictionary<string, object>();
              httpBody.Add("scenes", new List<string> { "porn", "terrorism" });
              httpBody.Add("live", "true");
              httpBody.Add("bizType", "Business scenario");
              httpBody.Add("callback", "Webhook address");
              httpBody.Add("seed", "Random string");
              httpBody.Add("tasks", new List<Dictionary<string, object>> { task1 });
  
              request.SetContent(System.Text.Encoding.Default.GetBytes(JsonConvert.SerializeObject(httpBody)), "utf-8", FormatType.JSON);
              try
              {
                  VideoAsyncScanResponse response = client.GetAcsResponse(request);
                  if (response.HttpResponse.Status != 200)
                  {
                      Console.WriteLine("the request failed. status:{0}", response.HttpResponse.Status);
                  }
                  Console.WriteLine(System.Text.Encoding.Default.GetString(response.HttpResponse.Content));
              }
              catch (Exception ex)
              {
                  Console.WriteLine("Failed with error info: {0}", ex.Message);
              }
          }
      }
  }

• Submitting video and audio for comprehensive detection

  using System;
  using Newtonsoft.Json;
  using Aliyun.Acs.Core;
  using Aliyun.Acs.Core.Http;
  using Aliyun.Acs.Core.Profile;
  using Aliyun.Acs.Green.Model.V20180509;
  using System.Collections.Generic;
  
  namespace csharp_sdk_sample
  {
      class Program
      {
          static void Main(string[] args)
          {
              /**
               * Common ways to get environment variables:
               *     Get the AccessKey ID of the RAM user: Environment.GetEnvironmentVariable("ALIBABA_CLOUD_ACCESS_KEY_ID");
               *     Get the AccessKey secret of the RAM user: Environment.GetEnvironmentVariable("ALIBABA_CLOUD_ACCESS_KEY_SECRET");
               */
              DefaultProfile profile = DefaultProfile.GetProfile(
                      "cn-shanghai",
                      "Get the AccessKey ID of the RAM user from an environment variable",
                      "Get the AccessKey secret of the RAM user from an environment variable");
              // Note: Reuse the instantiated client as much as possible to improve detection performance and avoid repeated connections.
              DefaultAcsClient client = new DefaultAcsClient(profile);
  
              VideoAsyncScanRequest request = new VideoAsyncScanRequest();
              request.AcceptFormat = FormatType.JSON;
              request.ContentType = FormatType.JSON;
              request.Method = MethodType.POST;
              request.Encoding = "UTF-8";
  
              Dictionary<string, object> task1 = new Dictionary<string, object>();
              task1.Add("dataId", "Data ID for detection");
              // Set url to the streaming URL.
              task1.Add("url", "URL of the video to be detected");
  
              // scenes: The detection scenarios. You can specify multiple scenarios.
              // callback and seed are optional parameters used for callback notifications.
              Dictionary<string, object> httpBody = new Dictionary<string, object>();
              httpBody.Add("scenes", new List<string> { "porn", "terrorism" });
              httpBody.Add("live", "true");
              httpBody.Add("audioScenes", new List<string> { "antispam" });
              httpBody.Add("bizType", "Business scenario");
              httpBody.Add("callback", "Webhook address");
              httpBody.Add("seed", "Random string");
              httpBody.Add("tasks", new List<Dictionary<string, object>> { task1 });
  
              request.SetContent(System.Text.Encoding.Default.GetBytes(JsonConvert.SerializeObject(httpBody)), "utf-8", FormatType.JSON);
              try
              {
                  VideoAsyncScanResponse response = client.GetAcsResponse(request);
                  if (response.HttpResponse.Status != 200)
                  {
                      Console.WriteLine("the request failed. status:{0}", response.HttpResponse.Status);
                  }
                  Console.WriteLine(System.Text.Encoding.Default.GetString(response.HttpResponse.Content));
              }
              catch (Exception ex)
              {
                  Console.WriteLine("Failed with error info: {0}", ex.Message);
              }
          }
      }
  }

Sample code:

using System;
using Newtonsoft.Json;
using Aliyun.Acs.Core;
using Aliyun.Acs.Core.Http;
using Aliyun.Acs.Core.Profile;
using Aliyun.Acs.Green.Model.V20180509;
using System.Collections.Generic;

namespace csharp_sdk_sample
{
    class Program
    {
        static void Main(string[] args)
        {
            /**
             * Common ways to get environment variables:
             *     Get the AccessKey ID of the RAM user: Environment.GetEnvironmentVariable("ALIBABA_CLOUD_ACCESS_KEY_ID");
             *     Get the AccessKey secret of the RAM user: Environment.GetEnvironmentVariable("ALIBABA_CLOUD_ACCESS_KEY_SECRET");
             */
            DefaultProfile profile = DefaultProfile.GetProfile(
                    "cn-shanghai",
                    "Get the AccessKey ID of the RAM user from an environment variable",
                    "Get the AccessKey secret of the RAM user from an environment variable");
            // Note: Reuse the instantiated client as much as possible to improve detection performance and avoid repeated connections.
            DefaultAcsClient client = new DefaultAcsClient(profile);

            VideoAsyncScanResultsRequest request = new VideoAsyncScanResultsRequest();
            request.AcceptFormat = FormatType.JSON;
            request.ContentType = FormatType.JSON;
            request.Method = MethodType.POST;
            request.Encoding = "UTF-8";

            List<string> taskIdList = new List<string> { "Asynchronous video detection task ID" };

            request.SetContent(System.Text.Encoding.Default.GetBytes(JsonConvert.SerializeObject(taskIdList)), "utf-8", FormatType.JSON);
            try
            {
                VideoAsyncScanResultsResponse response = client.GetAcsResponse(request);


                if (response.HttpResponse.Status != 200)
                {
                    Console.WriteLine("the request failed. status:{0}", response.HttpResponse.Status);
                }
                Console.WriteLine(System.Text.Encoding.Default.GetString(response.HttpResponse.Content));
            }
            catch (Exception ex)
            {
                Console.WriteLine("Failed with error info: {0}", ex.Message);
            }
        }
    }
}

Sample code:

using System;
using Newtonsoft.Json;
using Aliyun.Acs.Core;
using Aliyun.Acs.Core.Http;
using Aliyun.Acs.Core.Profile;
using Aliyun.Acs.Green.Model.V20180509;
using System.Collections.Generic;

namespace csharp_sdk_sample
{
    class Program
    {
        static void Main(string[] args)
        {
            /**
             * Common ways to get environment variables:
             *     Get the AccessKey ID of the RAM user: Environment.GetEnvironmentVariable("ALIBABA_CLOUD_ACCESS_KEY_ID");
             *     Get the AccessKey secret of the RAM user: Environment.GetEnvironmentVariable("ALIBABA_CLOUD_ACCESS_KEY_SECRET");
             */
            DefaultProfile profile = DefaultProfile.GetProfile(
                    "cn-shanghai",
                    "Get the AccessKey ID of the RAM user from an environment variable",
                    "Get the AccessKey secret of the RAM user from an environment variable");
            // Note: Reuse the instantiated client as much as possible to improve detection performance and avoid repeated connections.
            DefaultAcsClient client = new DefaultAcsClient(profile);

            VideoFeedbackRequest request = new VideoFeedbackRequest();
            request.AcceptFormat = FormatType.JSON;
            request.ContentType = FormatType.JSON;
            request.Method = MethodType.POST;
            request.Encoding = "UTF-8";

            Dictionary<string, object> frame1 = new Dictionary<string, object>();
            frame1.Add("offset", "0");
            frame1.Add("url", "URL of your video snapshot 1");

            Dictionary<string, object> frame2 = new Dictionary<string, object>();
            frame2.Add("offset", "0");
            frame2.Add("url", "URL of your video snapshot 2");

            List<Dictionary<string, object>> frames = new List<Dictionary<string, object>> { frame1, frame2 };

            // scenes: The detection scenarios. You can specify multiple scenarios.
            // suggestion: The expected detection result. pass: normal. block: violation.
            Dictionary<string, object> httpBody = new Dictionary<string, object>();
            httpBody.Add("scenes", new List<string> { "porn", "terrorism" });
            httpBody.Add("suggestion", "block");
            httpBody.Add("taskId", "Video moderation task ID");
            httpBody.Add("dataId", "Data ID for detection");
            httpBody.Add("url", "Video URL");
            httpBody.Add("frames", frames);
            httpBody.Add("note", "Remarks");

            request.SetContent(System.Text.Encoding.Default.GetBytes(JsonConvert.SerializeObject(httpBody)), "utf-8", FormatType.JSON);
            try
            {
                VideoFeedbackResponse response = client.GetAcsResponse(request);


                if (response.HttpResponse.Status != 200)
                {
                    Console.WriteLine("the request failed. status:{0}", response.HttpResponse.Status);
                }
                Console.WriteLine(System.Text.Encoding.Default.GetString(response.HttpResponse.Content));
            }
            catch (Exception ex)
            {
                Console.WriteLine("Failed with error info: {0}", ex.Message);
            }
        }
    }
}