/// <summary>
/// Creates an Archival program
/// </summary>
/// <param name="channel"></param>
/// <param name="startTime"></param>
/// <param name="archivalWindowMinutes"></param>
/// <returns></returns>
public async Task <IProgram> CreateArchivalProgramAsync(IChannel channel, DateTime startTime, int archivalWindowMinutes = 60, int overlappingArchivalWindowMinutes = 2)
{
// First segment Archival Program (the one that records in the background for VOD playback)
var archivalProgram_StartTime = startTime;
var archivalProgram_ArchivalWindow = TimeSpan.FromMinutes(archivalWindowMinutes);
var archivalProgram_EndTime = archivalProgram_StartTime.Add(archivalProgram_ArchivalWindow).AddMinutes(-1 * overlappingArchivalWindowMinutes);
var archivalProgram_programName = NamingHelpers.GetArchivingProgramName(archivalProgram_StartTime);
var archivalProgram_programDescription = NamingHelpers.GetArchivingProgramDescription(channel.Name, archivalProgram_StartTime, archivalProgram_EndTime);
// Create the Archiving Program
return(await CreateProgramIfNotExistsAsync(channel, archivalProgram_programName, archivalProgram_programDescription, archivalProgram_ArchivalWindow));
}
/// <summary>
/// Creates the DefaultProgram
/// </summary>
/// <param name="channel"></param>
/// <param name="archivalWindowMinutes"></param>
/// <returns></returns>
public async Task <IProgram> CreateDefaultProgramIfNotExistsAsync(IChannel channel, int archivalWindowMinutes = 360)
{
// Default Program details (the one that keeps on running without us touching it)
var defaultProgram_StartTime = DateTime.UtcNow;
var defaultProgram_ArchivalWindow = TimeSpan.FromMinutes(archivalWindowMinutes);
var defaultProgram_EndTime = defaultProgram_StartTime.Add(defaultProgram_ArchivalWindow);
var defaultProgram_programName = NamingHelpers.GetDefaultProgramName(channel.Name);;
var defaultProgram_programDescription = NamingHelpers.GetDefaultProgramDescription(channel.Name);
// Create DefaultProgram
return(await CreateProgramIfNotExistsAsync(channel, defaultProgram_programName, defaultProgram_programDescription, defaultProgram_ArchivalWindow));
}
/// <summary>
/// Creates a Program
/// </summary>
/// <param name="channel"></param>
/// <param name="name"></param>
/// <param name="description"></param>
/// <param name="archiveWindowLength"></param>
/// <returns></returns>
public async Task <IProgram> CreateProgramIfNotExistsAsync(IChannel channel, string name, string description, TimeSpan archiveWindowLength)
{
System.Diagnostics.Trace.TraceInformation("Creating Program [{0}] for Channel ID [{1}] with Archival Window [{2}] minutes", name, channel.Id, archiveWindowLength.TotalMinutes);
IProgram program;
IAsset asset;
ILocator locator;
var assetName = NamingHelpers.GetArchivingAssetName(channel.Name, name);
// Try to find an asset with this name
System.Diagnostics.Trace.TraceInformation("Trying to find existing Archiving asset [{0}]", assetName);
asset = GetAssetByName(assetName);
if (asset == null)
{
System.Diagnostics.Trace.TraceInformation("Archiving asset [{0}] doesn't exist. Create it.", assetName);
// Create output asset for the program (archive)
asset = CloudMediaContext.Assets.Create(assetName, AssetCreationOptions.None);
System.Diagnostics.Trace.TraceInformation("Archiving asset [{0}] Created [{1}]", assetName, asset.Id);
}
// Try to find this program first before creating it
System.Diagnostics.Trace.TraceInformation("Trying to find existing Program [{0}]", name);
program = GetProgramByName(channel, name);
if (program == null)
{
System.Diagnostics.Trace.TraceInformation("Program [{0}] doesn't exist. Create it.", name);
// Add program to Azure Media Service channel
program = await channel.Programs.CreateAsync(
new ProgramCreationOptions
{
Name = name,
Description = description,
ArchiveWindowLength = archiveWindowLength,
AssetId = asset.Id
});
System.Diagnostics.Trace.TraceInformation("Program [{0}] Created [{1}]", name, program.Id);
}
// Start the Program if it isn't already running
System.Diagnostics.Trace.TraceInformation("Start Program [{0}] if it isn't running", name);
if (program.State != ProgramState.Starting || program.State != ProgramState.Running)
{
await program.StartAsync();
}
// Create (or retrieve access policy)
System.Diagnostics.Trace.TraceInformation("Get Access Policy [{0}]", "100 years Read Access Policy");
var accessPolicy = GetAccessPolicy("100 years Read Access Policy");
if (accessPolicy == null)
{
System.Diagnostics.Trace.TraceInformation("Access Policy [{0}] doesn't exist. Create it.", "100 years Read Access Policy");
accessPolicy = await CreateAccessPolicyAsync("100 years Access Policy", TimeSpan.FromDays(3650));
System.Diagnostics.Trace.TraceInformation("Access Policy [{0}] Created [{1}]", accessPolicy.Name, accessPolicy.Id);
}
// Try to find a Locator for the asset before creating it
System.Diagnostics.Trace.TraceInformation("Finding OnDemandOrigin Locator for Asset ID [{0}]", asset.Id);
locator = GetLocator(asset.Id, LocatorType.OnDemandOrigin);
if (locator == null)
{
System.Diagnostics.Trace.TraceInformation("Locator for Asset ID [{0}] doesn't exist. Create it.", asset.Id);
// Create a locator for the Asset in the Program
locator = await CloudMediaContext.Locators.CreateLocatorAsync
(
LocatorType.OnDemandOrigin,
asset,
accessPolicy
);
System.Diagnostics.Trace.TraceInformation("Locator for Asset ID [{0}] Created [{1}].", asset.Id, locator.Id);
}
// Return program
return(program);
}
