whisper.cpp/bindings/java
Borislav Stanimirov af5833e298
whisper : remove speed_up and phase_vocoder* functions ()
* whisper : fix cast warning

* whisper : remove phase_vocoder functions, ref 

* whisper : remove speed_up from whisper_full_params, closes 
2024-05-31 11:37:29 +03:00
..
.idea bindings : add java bindings () 2023-05-20 18:25:02 +03:00
gradle/wrapper bindings : add java bindings () 2023-05-20 18:25:02 +03:00
src whisper : remove speed_up and phase_vocoder* functions () 2024-05-31 11:37:29 +03:00
build.gradle examples : add whisper.android.java for compatibility with older Android versions using Java () 2023-11-12 18:31:58 +02:00
gradle.properties bindings : add java bindings () 2023-05-20 18:25:02 +03:00
gradlew bindings : add java bindings () 2023-05-20 18:25:02 +03:00
gradlew.bat bindings : add java bindings () 2023-05-20 18:25:02 +03:00
README.md updated java README 2023-06-06 10:27:26 +10:00
settings.gradle bindings : add java bindings () 2023-05-20 18:25:02 +03:00

Java JNI bindings for Whisper

This package provides Java JNI bindings for whisper.cpp. They have been tested on:

  • Darwin (OS X) 12.6 on x64_64
  • Ubuntu on x86_64
  • Windows on x86_64

The "low level" bindings are in WhisperCppJnaLibrary. The most simple usage is as follows:

JNA will attempt to load the whispercpp shared library from:

  • jna.library.path
  • jna.platform.library
  • ~/Library/Frameworks
  • /Library/Frameworks
  • /System/Library/Frameworks
  • classpath
import io.github.ggerganov.whispercpp.WhisperCpp;

public class Example {

    public static void main(String[] args) {
        WhisperCpp whisper = new WhisperCpp();
        // By default, models are loaded from ~/.cache/whisper/ and are usually named "ggml-${name}.bin"
        // or you can provide the absolute path to the model file.
        long context = whisper.initContext("base.en");
        try {
            var whisperParams = whisper.getFullDefaultParams(WhisperSamplingStrategy.WHISPER_SAMPLING_GREEDY);
            // custom configuration if required
            whisperParams.temperature_inc = 0f;
            
            var samples = readAudio(); // divide each value by 32767.0f
            whisper.fullTranscribe(whisperParams, samples);
            
            int segmentCount = whisper.getTextSegmentCount(context);
            for (int i = 0; i < segmentCount; i++) {
                String text = whisper.getTextSegment(context, i);
                System.out.println(segment.getText());
            }
        } finally {
             whisper.freeContext(context);
        }
     }
}

Building & Testing

In order to build, you need to have the JDK 8 or higher installed. Run the tests with:

git clone https://github.com/ggerganov/whisper.cpp.git
cd whisper.cpp/bindings/java

./gradlew build

You need to have the whisper library in your JNA library path. On Windows the dll is included in the jar and you can update it:

copy /y ..\..\build\bin\Release\whisper.dll build\generated\resources\main\win32-x86-64\whisper.dll

License

The license for the Go bindings is the same as the license for the rest of the whisper.cpp project, which is the MIT License. See the LICENSE file for more details.