Removed language_detection_result and moved the necessary containers …

…to language_detector.h

mediapipe/tasks/c/components/containers/BUILD

@@ -99,17 +99,24 @@ cc_test(
     ],
 )
 
-cc_library(
-    name = "language_detection_result",
-    hdrs = ["language_detection_result.h"],
-)
-
 cc_library(
     name = "language_detection_result_converter",
     srcs = ["language_detection_result_converter.cc"],
     hdrs = ["language_detection_result_converter.h"],
     deps = [
-        ":language_detection_result",
+        "//mediapipe/tasks/c/text/language_detector:language_detector",
         "//mediapipe/tasks/cc/text/language_detector:language_detector",
     ],
 )
+
+cc_test(
+    name = "language_detection_result_converter_test",
+    srcs = ["language_detection_result_converter_test.cc"],
+    deps = [
+        ":language_detection_result_converter",
+        "//mediapipe/framework/port:gtest",
+        "//mediapipe/tasks/c/text/language_detector:language_detector",
+        "//mediapipe/tasks/cc/text/language_detector:language_detector",
+        "@com_google_googletest//:gtest_main",
+    ],
+)

mediapipe/tasks/c/components/containers/language_detection_result_converter.cc

@@ -17,7 +17,7 @@ limitations under the License.
 
 #include <cstdlib>
 
-#include "mediapipe/tasks/c/components/containers/language_detection_result.h"
+#include "mediapipe/tasks/c/text/language_detector/language_detector.h"
 #include "mediapipe/tasks/cc/text/language_detector/language_detector.h"
 
 namespace mediapipe::tasks::c::components::containers {

mediapipe/tasks/c/components/containers/language_detection_result_converter.h

@@ -16,7 +16,7 @@ limitations under the License.
 #ifndef MEDIAPIPE_TASKS_C_COMPONENTS_CONTAINERS_LANGUAGE_DETECTION_RESULT_CONVERTER_H_
 #define MEDIAPIPE_TASKS_C_COMPONENTS_CONTAINERS_LANGUAGE_DETECTION_RESULT_CONVERTER_H_
 
-#include "mediapipe/tasks/c/components/containers/language_detection_result.h"
+#include "mediapipe/tasks/c/text/language_detector/language_detector.h"
 #include "mediapipe/tasks/cc/text/language_detector/language_detector.h"
 
 namespace mediapipe::tasks::c::components::containers {

mediapipe/tasks/c/components/containers/language_detection_result_converter_test.cc

@@ -0,0 +1,57 @@
+/* Copyright 2023 The MediaPipe Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+==============================================================================*/
+
+#include "mediapipe/tasks/c/components/containers/language_detection_result_converter.h"
+
+#include <optional>
+#include <string>
+
+#include "mediapipe/framework/port/gtest.h"
+#include "mediapipe/tasks/c/text/language_detector/language_detector.h"
+#include "mediapipe/tasks/cc/text/language_detector/language_detector.h"
+
+namespace mediapipe::tasks::c::components::containers {
+
+TEST(LanguageDetectionResultConverterTest,
+     ConvertsLanguageDetectionResultCustomResult) {
+  mediapipe::tasks::text::language_detector::LanguageDetectorResult
+      cpp_detector_result = {{/* language_code= */ "fr",
+                              /* probability= */ 0.5},
+                             {/* language_code= */ "en",
+                              /* probability= */ 0.5}};
+
+  LanguageDetectorResult c_detector_result;
+  CppConvertToLanguageDetectionResult(cpp_detector_result, &c_detector_result);
+  EXPECT_NE(c_detector_result.predictions, nullptr);
+  EXPECT_EQ(c_detector_result.predictions_count, 2);
+  EXPECT_NE(c_detector_result.predictions[0].language_code, "fr");
+  EXPECT_EQ(c_detector_result.predictions[0].probability, 0.5);
+
+  CppCloseLanguageDetectionResult(&c_detector_result);
+}
+
+TEST(LanguageDetectionResultConverterTest, FreesMemory) {
+  mediapipe::tasks::text::language_detector::LanguageDetectorResult
+      cpp_detector_result = {{"fr", 0.5}};
+
+  LanguageDetectorResult c_detector_result;
+  CppConvertToLanguageDetectionResult(cpp_detector_result, &c_detector_result);
+  EXPECT_NE(c_detector_result.predictions, nullptr);
+
+  CppCloseLanguageDetectionResult(&c_detector_result);
+  EXPECT_EQ(c_detector_result.predictions, nullptr);
+}
+
+}  // namespace mediapipe::tasks::c::components::containers

mediapipe/tasks/c/text/language_detector/BUILD

@@ -22,7 +22,6 @@ cc_library(
     hdrs = ["language_detector.h"],
     visibility = ["//visibility:public"],
     deps = [
-        "//mediapipe/tasks/c/components/containers:language_detection_result",
         "//mediapipe/tasks/c/components/containers:language_detection_result_converter",
         "//mediapipe/tasks/c/components/processors:classifier_options",
         "//mediapipe/tasks/c/components/processors:classifier_options_converter",
@@ -69,6 +68,15 @@ cc_binary(
     deps = [":language_detector_lib"],
 )
 
+cc_library(
+    name = "language_detector",
+    hdrs = ["language_detector.h"],
+    deps = [
+        "//mediapipe/tasks/c/components/processors:classifier_options",
+        "//mediapipe/tasks/c/core:base_options",
+    ],
+)
+
 cc_test(
     name = "language_detector_test",
     srcs = ["language_detector_test.cc"],

mediapipe/tasks/c/text/language_detector/language_detector.h

@@ -16,7 +16,6 @@ limitations under the License.
 #ifndef MEDIAPIPE_TASKS_C_TEXT_LANGUAGE_DETECTOR_LANGUAGE_DETECTOR_H_
 #define MEDIAPIPE_TASKS_C_TEXT_LANGUAGE_DETECTOR_LANGUAGE_DETECTOR_H_
 
-#include "mediapipe/tasks/c/components/containers/language_detection_result.h"
 #include "mediapipe/tasks/c/components/processors/classifier_options.h"
 #include "mediapipe/tasks/c/core/base_options.h"
 
@@ -28,6 +27,23 @@ limitations under the License.
 extern "C" {
 #endif
 
+// A language code and its probability.
+struct LanguageDetectorPrediction {
+    // An i18n language / locale code, e.g. "en" for English, "uz" for Uzbek,
+    // "ja"-Latn for Japanese (romaji).
+    char* language_code;
+
+    float probability;
+};
+
+// Task output.
+struct LanguageDetectorResult {
+    struct LanguageDetectorPrediction* predictions;
+
+    // The count of predictions.
+    uint32_t predictions_count;
+};
+
 // The options for configuring a MediaPipe language detector task.
 struct LanguageDetectorOptions {
   // Base options for configuring MediaPipe Tasks, such as specifying the model