private async Task <Guid> TranscribeEpisode(SrStoredEpisode storedEpisode, SpeechBatchClient speechBatchClient)
{
var audioUrl = RemoveQueryString(storedEpisode.AudioUrl);
var transcriptionDefinition = TranscriptionDefinition.Create(
$"RadioText - Episode {storedEpisode.Episode.Id}",
"RadioText",
storedEpisode.AudioLocale,
new Uri(audioUrl)
);
var transcriptionLocation = await speechBatchClient.PostTranscriptionAsync(transcriptionDefinition);
return(GetTranscriptionGuid(transcriptionLocation));
}
private async Task StartBatchTranscriptionJobAsync(IEnumerable <Message> messages, string jobName)
{
if (messages == null || !messages.Any())
{
Logger.LogError($"Invalid service bus message(s).");
return;
}
var fetchingDelay = GetInitialFetchingDelay(messages.Count());
var locationString = string.Empty;
var serviceBusMessages = messages.Select(message => JsonConvert.DeserializeObject <ServiceBusMessage>(Encoding.UTF8.GetString(message.Body)));
try
{
var properties = GetTranscriptionPropertyBag();
var sasUrls = new List <string>();
var audioFileInfos = new List <AudioFileInfo>();
foreach (var serviceBusMessage in serviceBusMessages)
{
var sasUrl = StorageConnectorInstance.CreateSas(serviceBusMessage.Data.Url);
sasUrls.Add(sasUrl);
audioFileInfos.Add(new AudioFileInfo(serviceBusMessage.Data.Url.AbsoluteUri, serviceBusMessage.RetryCount));
}
ModelIdentity modelIdentity = null;
if (Guid.TryParse(StartTranscriptionEnvironmentVariables.CustomModelId, out var customModelId))
{
modelIdentity = ModelIdentity.Create(StartTranscriptionEnvironmentVariables.AzureSpeechServicesRegion, customModelId);
}
var transcriptionDefinition = TranscriptionDefinition.Create(jobName, "StartByTimerTranscription", Locale, sasUrls, properties, modelIdentity);
var transcriptionLocation = await BatchClient.PostTranscriptionAsync(
transcriptionDefinition,
HostName,
SubscriptionKey,
Logger).ConfigureAwait(false);
Logger.LogInformation($"Location: {transcriptionLocation}");
var transcriptionMessage = new TranscriptionStartedMessage(
transcriptionLocation.AbsoluteUri,
jobName,
Locale,
modelIdentity != null,
audioFileInfos,
0,
0);
await ServiceBusUtilities.SendServiceBusMessageAsync(FetchQueueClientInstance, transcriptionMessage.CreateMessageString(), Logger, fetchingDelay).ConfigureAwait(false);
}
catch (WebException e)
{
if (BatchClient.IsThrottledOrTimeoutStatusCode(((HttpWebResponse)e.Response).StatusCode))
{
var errorMessage = $"Throttled or timeout while creating post. Error Message: {e.Message}";
Logger.LogError(errorMessage);
await RetryOrFailMessagesAsync(messages, errorMessage).ConfigureAwait(false);
}
else
{
var errorMessage = $"Start Transcription in job with name {jobName} failed with WebException {e} and message {e.Message}";
Logger.LogError(errorMessage);
using (var reader = new StreamReader(e.Response.GetResponseStream()))
{
var responseMessage = await reader.ReadToEndAsync().ConfigureAwait(false);
errorMessage += "\nResponse message:" + responseMessage;
}
await WriteFailedJobLogToStorageAsync(serviceBusMessages, errorMessage, jobName).ConfigureAwait(false);
}
throw;
}
catch (TimeoutException e)
{
var errorMessage = $"Timeout while creating post, re-enqueueing transcription start. Message: {e.Message}";
Logger.LogError(errorMessage);
await RetryOrFailMessagesAsync(messages, errorMessage).ConfigureAwait(false);
throw;
}
catch (Exception e)
{
var errorMessage = $"Start Transcription in job with name {jobName} failed with exception {e} and message {e.Message}";
Logger.LogError(errorMessage);
await WriteFailedJobLogToStorageAsync(serviceBusMessages, errorMessage, jobName).ConfigureAwait(false);
throw;
}
Logger.LogInformation($"Fetch transcription queue successfully informed about job at: {jobName}");
}
static async Task <string> TranscribeAsync(string SubscriptionKey, string Region, int Port, string Locale, string Name, string Description, string SpeechToTextBasePath, string RecordingsBlobUri)
{
Console.WriteLine("Starting transcriptions client...");
string resultstring = string.Empty;
// Create the client object and authenticate
var client = new HttpClient
{
Timeout = TimeSpan.FromMinutes(25),
BaseAddress = new UriBuilder(Uri.UriSchemeHttps, $"{Region}.cris.ai", Port).Uri,
DefaultRequestHeaders =
{
{ "Ocp-Apim-Subscription-Key", SubscriptionKey }
}
};
var transcriptionDefinition =
TranscriptionDefinition.Create(
Name,
Description,
Locale,
new Uri(RecordingsBlobUri));
var res = JsonConvert.SerializeObject(transcriptionDefinition);
var sc = new StringContent(res);
sc.Headers.ContentType = JsonMediaTypeFormatter.DefaultMediaType;
Uri transcriptionLocation = null;
using (var response = await client.PostAsync($"{SpeechToTextBasePath}Transcriptions/", sc))
{
if (!response.IsSuccessStatusCode)
{
Console.WriteLine("Error {0} starting transcription.", response.StatusCode);
return("Error");
}
transcriptionLocation = response.Headers.Location;
}
Console.WriteLine($"Created transcription at location {transcriptionLocation}.");
Console.WriteLine("Checking status.");
var completed = false;
// Check for the status of our transcriptions periodically
while (!completed)
{
Transcription transcription = null;
// Get all transcriptions for the user
using (var response = await client.GetAsync(transcriptionLocation.AbsolutePath))
{
var contentType = response.Content.Headers.ContentType;
if (response.IsSuccessStatusCode &&
string.Equals(contentType.MediaType, "application/json", StringComparison.OrdinalIgnoreCase))
{
transcription = await response.Content.ReadAsAsync <Transcription>();
}
else
{
Console.WriteLine("Error with status {0} getting transcription result", response.StatusCode);
continue;
}
}
// For each transcription in the list we check the status
switch (transcription.Status)
{
case "Failed":
completed = true;
Console.WriteLine("Transcription failed. Status: {0}", transcription.StatusMessage);
break;
case "Succeeded":
completed = true;
var webClient = new WebClient();
var filename = Path.GetTempFileName();
webClient.DownloadFile(transcription.ResultsUrls["channel_0"], filename);
var results = File.ReadAllText(filename);
Console.WriteLine($"Transcription succeeded. Results: {Environment.NewLine}{results}");
resultstring = results;
File.Delete(filename);
break;
case "Running":
Console.WriteLine("Transcription is still running.");
break;
case "NotStarted":
Console.WriteLine("Transcription has not started.");
break;
}
await Task.Delay(TimeSpan.FromSeconds(5));
}
return(resultstring);
}