public static async Task <IActionResult> Run([HttpTrigger(AuthorizationLevel.Function, "get", "post")] HttpRequestData req,
FunctionContext executionContext)
{
var log = executionContext.GetLogger("Function1");
log.LogInformation("C# HTTP trigger function processed a request.");
string triggerStart = DateTime.UtcNow.ToString("yyMMddHHmmss");
// Get request body data.
string requestBody = await new StreamReader(req.Body).ReadToEndAsync();
var data = (RequestBodyModel)JsonConvert.DeserializeObject(requestBody, typeof(RequestBodyModel));
// Return bad request if input asset name is not passed in
if (data.LiveEventName == null || data.LiveOutputName == null)
{
return(new BadRequestObjectResult("Please pass live event name and live output name in the request body"));
}
data.IntervalSec ??= 60;
// If Visual Studio is used, let's read the .env file which should be in the root folder (same folder than the solution .sln file).
// Same code will work in VS Code, but VS Code uses also launch.json to get the .env file.
// You can create this ".env" file by saving the "sample.env" file as ".env" file and fill it with the right values.
try
{
DotEnv.Load(".env");
}
catch
{
}
ConfigWrapper config = new(new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables() // parses the values from the optional .env file at the solution root
.Build());
IAzureMediaServicesClient client;
try
{
client = await Authentication.CreateMediaServicesClientAsync(config);
}
catch (Exception e)
{
if (e.Source.Contains("ActiveDirectory"))
{
Console.Error.WriteLine("TIP: Make sure that you have filled out the appsettings.json file before running this sample.");
Console.Error.WriteLine();
}
Console.Error.WriteLine($"{e.Message}");
return(new BadRequestObjectResult(e.Message));
}
// Set the polling interval for long running operations to 2 seconds.
// The default value is 30 seconds for the .NET client SDK
client.LongRunningOperationRetryTimeout = 2;
// Ensure that you have customized encoding Transform. This is really a one time setup operation.
Transform transform = await CreateSubclipTransform(client, config.ResourceGroup, config.AccountName, SubclipTransformName);
var liveOutput = await client.LiveOutputs.GetAsync(config.ResourceGroup, config.AccountName, data.LiveEventName, data.LiveOutputName);
// let's analyze the client manifest and adjust times for the subclip job
var doc = await LiveManifest.TryToGetClientManifestContentAsABlobAsync(client, config.ResourceGroup, config.AccountName, liveOutput.AssetName);
var assetmanifestdata = LiveManifest.GetManifestTimingData(doc);
if (assetmanifestdata.Error)
{
return(new NotFoundObjectResult(new
{
message = "Data cannot be read from live output / asset manifest."
}));
}
log.LogInformation("Timestamps : " + string.Join(",", assetmanifestdata.TimestampList.Select(n => n.ToString()).ToArray()));
var livetime = TimeSpan.FromSeconds(assetmanifestdata.TimestampEndLastChunk / (double)assetmanifestdata.TimeScale);
log.LogInformation($"Livetime : {livetime}");
var starttime = LiveManifest.ReturnTimeSpanOnGOP(assetmanifestdata, livetime.Subtract(TimeSpan.FromSeconds((int)data.IntervalSec)));
log.LogInformation($"Value starttime : {starttime}");
if (data.LastSubclipEndTime != null)
{
var lastEndTime = (TimeSpan)data.LastSubclipEndTime;
log.LogInformation($"Value lastEndTime : {lastEndTime}");
var delta = (livetime - lastEndTime - TimeSpan.FromSeconds((int)data.IntervalSec)).Duration();
log.LogInformation($"Delta: {delta}");
if (delta < (TimeSpan.FromSeconds(3 * (int)data.IntervalSec))) // less than 3 times the normal duration (3*60s)
{
starttime = lastEndTime;
log.LogInformation($"Value new starttime : {starttime}");
}
}
var duration = livetime - starttime;
log.LogInformation($"Value duration: {duration}");
if (duration == new TimeSpan(0)) // Duration is zero, this may happen sometimes !
{
return(new NotFoundObjectResult(new
{
message = "Stopping. Duration of subclip is zero."
}));
}
// Output from the Job must be written to an Asset, so let's create one
Asset outputAsset = await CreateOutputAssetAsync(client, config.ResourceGroup, config.AccountName, liveOutput.Name + "-subclip-" + triggerStart, data.OutputAssetStorageAccount);
Job job = await SubmitJobAsync(
client,
config.ResourceGroup,
config.AccountName,
SubclipTransformName,
$"Subclip-{liveOutput.Name}-{triggerStart}",
liveOutput.AssetName,
outputAsset.Name,
new AbsoluteClipTime(starttime.Subtract(TimeSpan.FromMilliseconds(100))),
new AbsoluteClipTime(livetime.Add(TimeSpan.FromMilliseconds(100)))
);
return(new OkObjectResult(new AnswerBodyModel
{
SubclipAssetName = outputAsset.Name,
SubclipJobName = job.Name,
SubclipTransformName = SubclipTransformName,
SubclipEndTime = starttime + duration
}));
}
public static async Task <HttpResponseData> Run([HttpTrigger(AuthorizationLevel.Function, "get", "post")] HttpRequestData req, FunctionContext executionContext)
{
var log = executionContext.GetLogger("SubmitSubclipJob");
log.LogInformation("C# HTTP trigger function processed a request.");
string triggerStart = DateTime.UtcNow.ToString("yyMMddHHmmss");
// Get request body data.
string requestBody = await new StreamReader(req.Body).ReadToEndAsync();
var data = (RequestBodyModel)JsonConvert.DeserializeObject(requestBody, typeof(RequestBodyModel));
// Return bad request if input asset name is not passed in
if (data.LiveEventName == null || data.LiveOutputName == null)
{
return(HttpRequest.ResponseBadRequest(req, "Please pass liveEventName and liveOutputName in the request body"));
}
data.IntervalSec ??= 60;
ConfigWrapper config = ConfigUtils.GetConfig();
IAzureMediaServicesClient client;
try
{
client = await Authentication.CreateMediaServicesClientAsync(config);
}
catch (Exception e)
{
if (e.Source.Contains("ActiveDirectory"))
{
log.LogError("TIP: Make sure that you have filled out the appsettings.json file before running this sample.");
}
log.LogError($"{e.Message}");
return(HttpRequest.ResponseBadRequest(req, e.Message));
}
// Set the polling interval for long running operations to 2 seconds.
// The default value is 30 seconds for the .NET client SDK
client.LongRunningOperationRetryTimeout = 2;
try
{
// Ensure that you have customized encoding Transform. This is really a one time setup operation.
Transform transform = await TransformUtils.GetOrCreateSubclipTransform(client, log, config.ResourceGroup, config.AccountName, SubclipTransformName);
}
catch (ErrorResponseException ex)
{
return(HttpRequest.ResponseBadRequest(req, LogUtils.LogError(log, ex, "Error when getting or creating the transform.")));
}
var liveOutput = await client.LiveOutputs.GetAsync(config.ResourceGroup, config.AccountName, data.LiveEventName, data.LiveOutputName);
// let's analyze the client manifest and adjust times for the subclip job
var doc = await LiveManifest.TryToGetClientManifestContentAsABlobAsync(client, config.ResourceGroup, config.AccountName, liveOutput.AssetName);
var assetmanifestdata = LiveManifest.GetManifestTimingData(doc);
if (assetmanifestdata.Error)
{
return(HttpRequest.ResponseBadRequest(req, "Data cannot be read from live output / asset manifest."));
}
log.LogInformation("Timestamps : " + string.Join(",", assetmanifestdata.TimestampList.Select(n => n.ToString()).ToArray()));
var livetime = TimeSpan.FromSeconds(assetmanifestdata.TimestampEndLastChunk / (double)assetmanifestdata.TimeScale);
log.LogInformation($"Livetime : {livetime}");
var starttime = LiveManifest.ReturnTimeSpanOnGOP(assetmanifestdata, livetime.Subtract(TimeSpan.FromSeconds((int)data.IntervalSec)));
log.LogInformation($"Value starttime : {starttime}");
if (data.LastSubclipEndTime != null)
{
var lastEndTime = (TimeSpan)data.LastSubclipEndTime;
log.LogInformation($"Value lastEndTime : {lastEndTime}");
var delta = (livetime - lastEndTime - TimeSpan.FromSeconds((int)data.IntervalSec)).Duration();
log.LogInformation($"Delta: {delta}");
if (delta < (TimeSpan.FromSeconds(3 * (int)data.IntervalSec))) // less than 3 times the normal duration (3*60s)
{
starttime = lastEndTime;
log.LogInformation($"Value new starttime : {starttime}");
}
}
var duration = livetime - starttime;
log.LogInformation($"Value duration: {duration}");
if (duration == new TimeSpan(0)) // Duration is zero, this may happen sometimes !
{
return(HttpRequest.ResponseBadRequest(req, "Stopping. Duration of subclip is zero."));
}
Asset outputAsset;
try
{
// Output from the Job must be written to an Asset, so let's create one
outputAsset = await AssetUtils.CreateAssetAsync(client, log, config.ResourceGroup, config.AccountName, liveOutput.Name + "-subclip-" + triggerStart, data.OutputAssetStorageAccount);
}
catch (ErrorResponseException ex)
{
return(HttpRequest.ResponseBadRequest(req, LogUtils.LogError(log, ex, "Error when creating the output asset.")));
}
JobInput jobInput = new JobInputAsset(
assetName: liveOutput.AssetName,
start: new AbsoluteClipTime(starttime.Subtract(TimeSpan.FromMilliseconds(100))),
end: new AbsoluteClipTime(livetime.Add(TimeSpan.FromMilliseconds(100)))
);
Job job;
try
{
job = await JobUtils.SubmitJobAsync(
client,
log,
config.ResourceGroup,
config.AccountName,
SubclipTransformName,
$"Subclip-{liveOutput.Name}-{triggerStart}",
jobInput,
outputAsset.Name
);
}
catch (ErrorResponseException ex)
{
return(HttpRequest.ResponseBadRequest(req, LogUtils.LogError(log, ex, "Error when submitting the job.")));
}
AnswerBodyModel dataOk = new()
{
SubclipAssetName = outputAsset.Name,
SubclipJobName = job.Name,
SubclipTransformName = SubclipTransformName,
SubclipEndTime = starttime + duration
};
return(HttpRequest.ResponseOk(req, dataOk, HttpStatusCode.Accepted));
}
}
