/// <summary>
/// Recognizes the wav audio as an asynchronous operation.
/// </summary>
/// <exception cref="HttpRequestException"/>
/// <param name="type">The audio type.</param>
/// <param name="token">A <see cref="CancellationToken"/> which may be used to cancel the recognize operation.</param>
/// <returns>A task that represents the asynchronous deserialize operation.</returns>
/// <inheritdoc cref="CreateResultAsync(Task{HttpResponseMessage})"/>
/// <inheritdoc cref="ACRCloudExtractTools.CreateHummingFingerprint(byte[])"/>
public Task <ACRCloudRecognizeResult?> RecognizeAsync(byte[] pcmBuffer, RecognizeType type = DefaultRecognizeType, CancellationToken token = default)
{
IEnumerable <KeyValuePair <string?, string?> > getContents()
{
if ((type & RecognizeType.Audio) != 0)
{
byte[] audio = ACRCloudExtractTools.CreateFingerprint(pcmBuffer);
yield return(new KeyValuePair <string?, string?>("sample_bytes", audio.Length.ToString()));
yield return(new KeyValuePair <string?, string?>("sample", Convert.ToBase64String(audio)));
}
if ((type & RecognizeType.Humming) != 0)
{
byte[] humming = ACRCloudExtractTools.CreateHummingFingerprint(pcmBuffer);
yield return(new KeyValuePair <string?, string?>("sample_hum_bytes", humming.Length.ToString()));
yield return(new KeyValuePair <string?, string?>("sample_hum", Convert.ToBase64String(humming)));
}
}
FormUrlEncodedContent content = new FormUrlEncodedContent(getContents().Concat(GetCommonContents()));
Task <HttpResponseMessage> response = Client.PostAsync($"http://{Options.Host}/v2/identify", content, token);
return(CreateResultAsync(response));
}
/// <inheritdoc cref="RecognizeByFileAsync(byte[], TimeSpan, RecognizeType, CancellationToken)"/>
public Task <ACRCloudRecognizeResult?> RecognizeByFileAsync(byte[] fileBuffer, RecognizeType type = DefaultRecognizeType, CancellationToken token = default)
{
return(RecognizeByFileAsync(fileBuffer, default, type, token));
/// <inheritdoc cref="RecognizeByFileAsync(string, TimeSpan, RecognizeType, CancellationToken)"/>
public Task <ACRCloudRecognizeResult?> RecognizeByFileAsync(string filePath, RecognizeType type = DefaultRecognizeType, CancellationToken token = default)
{
return(RecognizeByFileAsync(filePath, default, type, token));
