This directory contains an idiomatic C++ client library for the Cloud Speech-to-Text API, a service which converts audio to text by applying powerful neural network models.
While this library is GA, please note that the Google Cloud C++ client libraries do not follow Semantic Versioning.
Please note that the Google Cloud C++ client libraries do not follow Semantic Versioning.
The quickstart/ directory contains a minimal environment to get started using this client library in a larger project. The following “Hello World” program is used in this quickstart, and should give you a taste of this library.
For detailed instructions on how to build and install this library, see the top-level README.
#include "google/cloud/speech/v2/speech_client.h"
#include "google/cloud/project.h"
#include <iostream>
// Configure a simple recognizer for en-US.
void ConfigureRecognizer(google::cloud::speech::v2::RecognizeRequest& request) {
*request.mutable_config()->add_language_codes() = "en-US";
request.mutable_config()->set_model("short");
*request.mutable_config()->mutable_auto_decoding_config() = {};
}
int main(int argc, char* argv[]) try {
auto constexpr kDefaultUri = "gs://cloud-samples-data/speech/hello.wav";
if (argc != 3 && argc != 4) {
std::cerr << "Usage: " << argv[0] << " project <region>|global [gcs-uri]\n"
<< " Specify the region desired or \"global\"\n"
<< " The gcs-uri must be in gs://... format. It defaults to "
<< kDefaultUri << "\n";
return 1;
}
std::string const project = argv[1];
std::string location = argv[2];
auto const uri = std::string{argc == 4 ? argv[3] : kDefaultUri};
namespace speech = ::google::cloud::speech_v2;
std::shared_ptr<speech::SpeechConnection> connection;
google::cloud::speech::v2::RecognizeRequest request;
ConfigureRecognizer(request);
request.set_uri(uri);
request.set_recognizer("projects/" + project + "/locations/" + location +
"/recognizers/_");
if (location == "global") {
// An empty location string indicates that the global endpoint of the
// service should be used.
location = "";
}
auto client = speech::SpeechClient(speech::MakeSpeechConnection(location));
auto response = client.Recognize(request);
if (!response) throw std::move(response).status();
std::cout << response->DebugString() << "\n";
return 0;
} catch (google::cloud::Status const& status) {
std::cerr << "google::cloud::Status thrown: " << status << "\n";
return 1;
}
.h files