public static async Task <VideoFileInfo> TranscodeVideo(
[ActivityTrigger] VideoFileInfo inputVideo,
TraceWriter log)
{
log.Info($"Transcoding {inputVideo}");
await Task.Delay(1000);
var transcodedLocation = $"{Path.GetFileNameWithoutExtension(inputVideo.Location)}-" + $"{ inputVideo.BitRate}kbps.mp4";
return(new VideoFileInfo
{
Location = transcodedLocation,
BitRate = inputVideo.BitRate,
});
}
public static async Task <VideoFileInfo> TransocdeVideo(
[ActivityTrigger] VideoFileInfo inputVideo,
ILogger log)
{
log.LogInformation($"Transcoding {inputVideo.Location} to {inputVideo.BitRate}");
// simulate doing the activity
await Task.Delay(5000);
string 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 ctx, TraceWriter log)
{
var videoLocation = ctx.GetInput <string>();
var bitRates = await ctx.CallActivityAsync <int[]>("A_GetTranscodeBitrates", null);
var transcodeTasks = new List <Task <VideoFileInfo> >();
foreach (var bitRate in bitRates)
{
var info = new VideoFileInfo()
{
Location = videoLocation, BitRate = bitRate
};
var task = ctx.CallActivityAsync <VideoFileInfo>("A_TranscodeVideo", info);
transcodeTasks.Add(task);
}
var transcodeResults = await Task.WhenAll(transcodeTasks);
return(transcodeResults);
}