public static async Task <VideoFileInfo> TranscodeVideo([ActivityTrigger] VideoFileInfo inputVideo,
TraceWriter log)
{
log.Info($"Transcoding {inputVideo.Location} to {inputVideo.BitRate}");
// simulate doing the activity
await Task.Delay(Delay);
var transcodedLocation =
$"{Path.GetFileNameWithoutExtension(inputVideo.Location)}-{inputVideo.BitRate}kbps.mp4";
return(new VideoFileInfo
{
Location = transcodedLocation,
BitRate = inputVideo.BitRate
});
}
public static async Task <VideoFileInfo[]> TranscodeVideo(
[OrchestrationTrigger] DurableOrchestrationContext context,
TraceWriter log)
{
var videoLocation = context.GetInput <string>();
var bitRates = new[] { 1000, 2000, 3000, 4000 };
var transcodeTasks = new List <Task <VideoFileInfo> >();
foreach (var bitRate in bitRates)
{
var info = new VideoFileInfo
{
Location = videoLocation,
BitRate = bitRate
};
var task = context.CallActivityAsync <VideoFileInfo>("A_TranscodedVideo", info);
transcodeTasks.Add(task);
}
var transcodedResults = await Task.WhenAll(transcodeTasks);
return(transcodedResults);
}
