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ProgramWv.cs
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ProgramWv.cs
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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Security.Cryptography.X509Certificates;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.WindowsAzure.MediaServices.Client;
using Microsoft.WindowsAzure.MediaServices.Client.ContentKeyAuthorization;
using Microsoft.WindowsAzure.MediaServices.Client.DynamicEncryption;
using Newtonsoft.Json;
namespace CreateWidevineProtectedAsset
{
class Program
{
private static readonly Uri _wamsEndpoint = new Uri("https://<WAMS endpoint host>.cloudapp.net/");
private static readonly string _wamsAccount = "<your WAMS account name>";
private static readonly string _wamsAccountKey = "<your WAMS account key>";
private static readonly string _wamsAcsBaseAddress = "https://<WAMS ACS host>.accesscontrol.windows.net/";
private static readonly string _wamsAcsScope = "<WAMS ACS scope>";
private static readonly string _assetFolder = "<path to the folder with your asset files>";
private static CloudMediaContext _mediaContext;
static void Main(string[] args)
{
var credentials = new MediaServicesCredentials(_wamsAccount, _wamsAccountKey)
{
AcsBaseAddress = _wamsAcsBaseAddress,
Scope = _wamsAcsScope
};
_mediaContext = new CloudMediaContext(_wamsEndpoint, credentials);
IAsset asset = CreateAsset();
IContentKey key = CreateKeyWithPolicy(asset);
IAssetDeliveryPolicy assetDeliveryPolicy = CreateAssetDeliveryPolicy(asset, key);
asset.DeliveryPolicies.Add(assetDeliveryPolicy);
Console.WriteLine("Asset Delivery Policy Added");
ILocator streamingLocator = CreateLocator(asset);
IStreamingEndpoint origin = GetOrigin(recreate: false);
Uri uri = GetManifestUrl(origin, asset, streamingLocator);
string keyDeliveryUrl = key.GetKeyDeliveryUrl(ContentKeyDeliveryType.Widevine).ToString();
Console.WriteLine("ism: {0}\nkey delivery: {1}", uri, keyDeliveryUrl);
Console.ReadKey();
}
private static Uri GetManifestUrl(IStreamingEndpoint origin, IAsset asset, ILocator streamingLocator)
{
string manifestFormat = "(format=mpd-time-csf)";
string url = string.Format("{0}{1}.ism/manifest{2}", streamingLocator.Path, asset.Name, manifestFormat);
Uri uri = new Uri(url);
var builder = new UriBuilder(uri);
builder.Scheme = "https";
builder.Host = origin.HostName;
builder.Port = -1;
uri = builder.Uri;
return uri;
}
private static ILocator CreateLocator(IAsset asset)
{
ILocator streamingLocator = _mediaContext
.Locators
.Where(l => l.AssetId == asset.Id)
.AsEnumerable()
.FirstOrDefault(l => l.Type == LocatorType.OnDemandOrigin);
if (streamingLocator != null && streamingLocator.ExpirationDateTime <= DateTime.UtcNow + TimeSpan.FromHours(1))
{
streamingLocator.Delete();
streamingLocator = null;
}
if (streamingLocator == null)
{
IAccessPolicy accessPolicy = _mediaContext.AccessPolicies.Create("readPolicy", TimeSpan.FromDays(7), AccessPermissions.Read);
streamingLocator = _mediaContext.Locators.CreateLocator(LocatorType.OnDemandOrigin, asset, accessPolicy);
}
streamingLocator.Update(DateTime.Now + TimeSpan.FromDays(7));
return streamingLocator;
}
private static IAssetDeliveryPolicy CreateAssetDeliveryPolicy(IAsset asset, IContentKey key)
{
var policy = asset.DeliveryPolicies
.Where(p => p.AssetDeliveryProtocol == AssetDeliveryProtocol.HLS)
.SingleOrDefault();
if (policy != null)
{
policy.Delete();
}
Uri keyUrl = key.GetKeyDeliveryUrl(ContentKeyDeliveryType.Widevine);
var configuration = new Dictionary<AssetDeliveryPolicyConfigurationKey, string>();
configuration.Add(AssetDeliveryPolicyConfigurationKey.WidevineLicenseAcquisitionUrl, keyUrl.ToString());
policy = _mediaContext.AssetDeliveryPolicies.Create(
"WidevineDeliveryPolicy",
AssetDeliveryPolicyType.DynamicCommonEncryption,
AssetDeliveryProtocol.Dash,
configuration);
return policy;
}
private static IContentKey CreateKeyWithPolicy(IAsset asset)
{
IContentKey key = asset.ContentKeys.Where(k => k.ContentKeyType == ContentKeyType.CommonEncryption).SingleOrDefault();
if (key != null)
{
CleanupKey(key);
key.Delete();
}
var keyId = Guid.NewGuid();
byte[] contentKey = Guid.NewGuid().ToByteArray();
ContentKeyType contentKeyType = ContentKeyType.CommonEncryption;
IContentKeyAuthorizationPolicyOption policyOption;
var restrictions = new List<ContentKeyAuthorizationPolicyRestriction>
{
new ContentKeyAuthorizationPolicyRestriction
{
Name = "Open",
KeyRestrictionType = (int)ContentKeyRestrictionType.Open,
Requirements = null
}
};
string configuration = "{}";
//string configuration = "{\"allowed_track_types\":\"SD_HD\",\"content_key_specs\":[{\"track_type\":\"SD\",\"security_level\":1,\"required_output_protection\":{\"hdcp\":\"HDCP_NONE\"}}],\"policy_overrides\":{\"can_play\":true,\"can_persist\":true,\"can_renew\":false}}";
policyOption = _mediaContext.ContentKeyAuthorizationPolicyOptions.Create(
"widevinetest",
ContentKeyDeliveryType.Widevine,
restrictions,
configuration);
key = _mediaContext.ContentKeys.Create(keyId, contentKey, "TestWidevineKey", contentKeyType);
var contentKeyAuthorizationPolicy = _mediaContext.ContentKeyAuthorizationPolicies.CreateAsync("test").Result;
contentKeyAuthorizationPolicy.Options.Add(policyOption);
key.AuthorizationPolicyId = contentKeyAuthorizationPolicy.Id;
key = key.UpdateAsync().Result;
asset.ContentKeys.Add(key);
return key;
}
private static IAsset CreateAsset()
{
var assetFiles = Directory.GetFiles(_assetFolder);
var ismFile = assetFiles.Where(file => file.EndsWith(".ism")).Single();
var assetName = Path.GetFileNameWithoutExtension(ismFile);
IAsset asset = _mediaContext.Assets.Where(a => a.Name == assetName).SingleOrDefault();
if (asset != null)
{
DeleteAsset(asset);
asset = null;
}
if (asset == null)
{
asset = CreateAsset(assetFiles, assetName);
}
return asset;
}
private static void DeleteAsset(IAsset asset)
{
foreach (var locator in asset.Locators.ToArray())
{
locator.Delete();
}
foreach (var policy in asset.DeliveryPolicies.ToArray())
{
asset.DeliveryPolicies.Remove(policy);
policy.Delete();
}
foreach (var key in asset.ContentKeys.ToArray())
{
CleanupKey(key);
asset.ContentKeys.Remove(key);
}
asset.Delete();
}
private static IAsset CreateAsset(string[] assetFiles, string assetName)
{
IAsset asset = _mediaContext.Assets.Create(assetName, AssetCreationOptions.None);
foreach (var assetFile in assetFiles)
{
var assetFileName = Path.GetFileName(assetFile);
var assetFileCreated = asset.AssetFiles.Create(assetFileName);
if (assetFileName.EndsWith(".ism"))
{
assetFileCreated.IsPrimary = true;
assetFileCreated.Update();
}
Console.WriteLine("Created assetFile:{0}, Path:{1}", assetFileCreated.Name, assetFile);
Console.WriteLine("Upload {0}...", assetFileCreated.Name);
assetFileCreated.Upload(assetFile);
}
return asset;
}
public static void CleanupKey(IContentKey key)
{
var policy = _mediaContext.ContentKeyAuthorizationPolicies
.Where(o => o.Id == key.AuthorizationPolicyId)
.SingleOrDefault();
if (policy != null)
{
policy.Delete();
}
}
private static IStreamingEndpoint GetOrigin(bool recreate = true)
{
string originName = "testwv";
var origin = _mediaContext.StreamingEndpoints.AsEnumerable().SingleOrDefault(ep => ep.Name == originName);
if (origin != null && (recreate || origin.ScaleUnits < 1))
{
if (origin.State != StreamingEndpointState.Stopped)
{
origin.Stop();
}
origin.Delete();
origin = null;
}
if (origin == null)
{
Console.WriteLine("Creating endpoint...");
origin = _mediaContext.StreamingEndpoints.Create(originName, 1);
Console.WriteLine("Endpoint created...");
}
if (origin.State == StreamingEndpointState.Stopped)
{
Console.WriteLine("Starting Endpoint...");
origin.Start();
}
origin = WaitForStreamingEndpointStart(origin);
return origin;
}
private static IStreamingEndpoint WaitForStreamingEndpointStart(IStreamingEndpoint origin)
{
while (origin.State != StreamingEndpointState.Running)
{
Console.WriteLine("Waiting for Endpoint...");
Thread.Sleep(10000);
origin = _mediaContext.StreamingEndpoints.AsEnumerable().SingleOrDefault(ep => ep.Id == origin.Id);
}
Console.WriteLine("Endpoint started.");
return origin;
}
}
}