public static async Task <FFmpegProcess> RunAsync(params string[] args)
{
var ffmpegProcess = new FFmpegProcess(args);
await ffmpegProcess.RunAsync();
return(ffmpegProcess);
}
public async Task ExecuteAsync(WorkerJobHelper <TransformJob> job)
{
S3Locator inputFile;
if (!job.JobInput.TryGet <S3Locator>(nameof(inputFile), out inputFile))
{
throw new Exception("Invalid or missing input file.");
}
S3Locator outputLocation;
if (!job.JobInput.TryGet <S3Locator>(nameof(outputLocation), out outputLocation))
{
throw new Exception("Invalid or missing output location.");
}
if (string.IsNullOrWhiteSpace(inputFile.AwsS3Bucket) || string.IsNullOrWhiteSpace(inputFile.AwsS3Key))
{
throw new Exception("Not able to obtain input file");
}
var data = await inputFile.GetAsync();
var localFileName = "/tmp/" + Guid.NewGuid();
await data.WriteResponseStreamToFileAsync(localFileName, true, CancellationToken.None);
var tempFileName = "/tmp/" + Guid.NewGuid() + ".mp4";
var ffmpegParams = new[] { "-y", "-i", localFileName, "-preset", "ultrafast", "-vf", "scale=-1:360", "-c:v", "libx264", "-pix_fmt", "yuv420p", tempFileName };
var ffmpegProcess = await FFmpegProcess.RunAsync(ffmpegParams);
File.Delete(localFileName);
var s3Params = new PutObjectRequest
{
BucketName = outputLocation.AwsS3Bucket,
Key = (outputLocation.AwsS3KeyPrefix ?? string.Empty) + Guid.NewGuid().ToString() + ".mp4",
FilePath = tempFileName,
ContentType = "video/mp4"
};
var outputS3 = await outputLocation.GetClientAsync();
var putResp = await outputS3.PutObjectAsync(s3Params);
job.JobOutput["outputFile"] = new S3Locator
{
AwsS3Bucket = s3Params.BucketName,
AwsS3Key = s3Params.Key
};
await job.CompleteAsync();
}
internal static async Task ProcessJobAssignmentAsync(TransformServiceWorkerRequest @event)
{
var resourceManager = @event.Request.GetAwsV4ResourceManager();
var table = new DynamoDbTable(@event.Request.StageVariables["TableName"]);
var jobAssignmentId = @event.JobAssignmentId;
try
{
// 1. Setting job assignment status to RUNNING
await UpdateJobAssignmentStatusAsync(resourceManager, table, jobAssignmentId, "RUNNING", null);
// 2. Retrieving WorkflowJob
var transformJob = await RetrieveTransformJobAsync(resourceManager, table, jobAssignmentId);
// 3. Retrieve JobProfile
var jobProfile = await RetrieveJobProfileAsync(resourceManager, transformJob);
// 4. Retrieve job inputParameters
var jobInput = transformJob.JobInput;
// 5. Check if we support jobProfile and if we have required parameters in jobInput
ValidateJobProfile(jobProfile, jobInput);
switch (jobProfile.Name)
{
case JOB_PROFILE_CREATE_PROXY_LAMBDA:
S3Locator inputFile;
if (!jobInput.TryGet <S3Locator>(nameof(inputFile), out inputFile))
{
throw new Exception("Invalid or missing input file.");
}
S3Locator outputLocation;
if (!jobInput.TryGet <S3Locator>(nameof(outputLocation), out outputLocation))
{
throw new Exception("Invalid or missing output location.");
}
if (string.IsNullOrWhiteSpace(inputFile.AwsS3Bucket) || string.IsNullOrWhiteSpace(inputFile.AwsS3Key))
{
throw new Exception("Not able to obtain input file");
}
var data = await inputFile.GetAsync();
var localFileName = "/tmp/" + Guid.NewGuid();
await data.WriteResponseStreamToFileAsync(localFileName, true, CancellationToken.None);
var tempFileName = "/tmp/" + Guid.NewGuid() + ".mp4";
var ffmpegParams = new[] { "-y", "-i", localFileName, "-preset", "ultrafast", "-vf", "scale=-1:360", "-c:v", "libx264", "-pix_fmt", "yuv420p", tempFileName };
var ffmpegProcess = await FFmpegProcess.RunAsync(ffmpegParams);
File.Delete(localFileName);
var s3Params = new PutObjectRequest
{
BucketName = outputLocation.AwsS3Bucket,
Key = (outputLocation.AwsS3KeyPrefix ?? string.Empty) + Guid.NewGuid().ToString() + ".mp4",
FilePath = tempFileName,
ContentType = "video/mp4"
};
var outputS3 = await outputLocation.GetClientAsync();
var putResp = await outputS3.PutObjectAsync(s3Params);
var jobOutput = new JobParameterBag();
jobOutput["outputFile"] = new S3Locator
{
AwsS3Bucket = s3Params.BucketName,
AwsS3Key = s3Params.Key
};
await UpdateJobAssignmentWithOutputAsync(table, jobAssignmentId, jobOutput);
await UpdateJobAssignmentStatusAsync(resourceManager, table, jobAssignmentId, "COMPLETED");
break;
case JOB_PROFILE_CREATE_PROXY_EC2:
var ec2hostname = @event.Request.StageVariables["HostnameInstanceEC2"];
var ec2Url = "http://" + ec2hostname + "/new-transform-job";
var message = new
{
input = jobInput,
notificationEndpoint = new NotificationEndpoint {
HttpEndpoint = jobAssignmentId + "/notifications"
}
};
Logger.Debug("Sending to", ec2Url, "message", message);
var mcmaHttp = new McmaHttpClient();
await mcmaHttp.PostAsJsonAsync(ec2Url, message);
Logger.Debug("Done");
break;
}
}
catch (Exception ex)
{
Logger.Exception(ex);
try
{
await UpdateJobAssignmentStatusAsync(resourceManager, table, jobAssignmentId, "FAILED", ex.ToString());
}
catch (Exception innerEx)
{
Logger.Exception(innerEx);
}
}
finally
{
Logger.Debug("Exiting TransformServiceWorker.ProcessJobAssignmentAsync");
}
}