public static async Task <object> Run([HttpTrigger(WebHookType = "genericJson")] HttpRequestMessage req, TraceWriter log)
{
log.Info($"AMS v2 Function - SubmitMediaJob was triggered!");
string jsonContent = await req.Content.ReadAsStringAsync();
dynamic data = JsonConvert.DeserializeObject(jsonContent);
// Validate input objects
if (data.assetId == null)
{
return(req.CreateResponse(HttpStatusCode.BadRequest, new { error = "Please pass assetId in the input object" }));
}
if (data.mediaTasks == null)
{
return(req.CreateResponse(HttpStatusCode.BadRequest, new { error = "Please pass mediaTasks in the input object" }));
}
string assetId = data.assetId;
List <AMSMediaTask> mediaTasks = ((JArray)data.mediaTasks).ToObject <List <AMSMediaTask> >();
int jobPriority = 10;
if (data.jobPriority != null)
{
jobPriority = data.jobPriority;
}
string jobName = "Azure Functions - Media Processing Job";
if (data.jobName != null)
{
jobName = data.jobName;
}
MediaServicesCredentials amsCredentials = new MediaServicesCredentials();
IAsset asset = null;
IJob job = null;
uint taskId = 0;
try
{
// Load AMS account context
log.Info($"Using AMS v2 REST API Endpoint : {amsCredentials.AmsRestApiEndpoint.ToString()}");
AzureAdTokenCredentials tokenCredentials = new AzureAdTokenCredentials(amsCredentials.AmsAadTenantDomain,
new AzureAdClientSymmetricKey(amsCredentials.AmsClientId, amsCredentials.AmsClientSecret),
AzureEnvironments.AzureCloudEnvironment);
AzureAdTokenProvider tokenProvider = new AzureAdTokenProvider(tokenCredentials);
_context = new CloudMediaContext(amsCredentials.AmsRestApiEndpoint, tokenProvider);
// Get the Asset
asset = _context.Assets.Where(a => a.Id == assetId).FirstOrDefault();
if (asset == null)
{
return(req.CreateResponse(HttpStatusCode.BadRequest, new { error = "Asset not found" }));
}
// Declare a new Media Processing Job
job = _context.Jobs.Create(jobName + " - " + asset.Name + " [" + assetId + "]");
job.Priority = jobPriority;
foreach (AMSMediaTask mediaTask in mediaTasks)
{
ITask task = null;
IMediaProcessor processor = MediaServicesHelper.GetLatestMediaProcessorByName(_context, mediaTask.mediaProcessor);
if (mediaTask.configuration.StartsWith(base64encodedstringprefix))
{
byte[] b64decoded = Convert.FromBase64String(mediaTask.configuration.Substring(base64encodedstringprefix.Length));
mediaTask.configuration = System.Text.ASCIIEncoding.ASCII.GetString(b64decoded);
}
task = job.Tasks.AddNew(mediaTask.mediaTaskName, processor, mediaTask.configuration, TaskOptions.None);
if (mediaTask.additionalInputAssetIds != null)
{
foreach (string inputAssetId in mediaTask.additionalInputAssetIds)
{
IAsset aAsset = _context.Assets.Where(a => a.Id == inputAssetId).FirstOrDefault();
task.InputAssets.Add(aAsset);
}
}
// Add primary input asset at last
task.InputAssets.Add(asset);
string outputAssetName = asset.Name + " - " + mediaTask.mediaProcessor;
IAsset outputAsset = task.OutputAssets.AddNew(outputAssetName, mediaTask.outputStorageAccount, asset.Options);
taskId++;
}
// media job submission
job.Submit();
}
catch (Exception e)
{
log.Info($"Exception {e}");
return(req.CreateResponse(HttpStatusCode.BadRequest));
}
// Prepare output JSON
int taskIndex = 0;
JArray mediaTaskOutputs = new JArray();
foreach (var task in job.Tasks)
{
JObject o = new JObject();
o["mediaTaskIndex"] = taskIndex;
o["mediaTaskId"] = task.Id;
o["mediaTaskName"] = task.Name;
o["mediaProcessorId"] = task.MediaProcessorId;
o["mediaTaskOutputAssetId"] = task.OutputAssets[0].Id;
mediaTaskOutputs.Add(o);
taskIndex++;
}
JObject result = new JObject();
result["jobId"] = job.Id;
result["mediaTaskOutputs"] = mediaTaskOutputs;
return(req.CreateResponse(HttpStatusCode.OK, result));
}