Java LAME

This java port of LAME 3.98.4 was created by Ken Händel for his 'jump3r - Java Unofficial MP3 EncodeR' project: http://sourceforge.net/projects/jsidplay2/

Original sources by the authors of LAME: http://www.sourceforge.net/projects/lame

The code is - as the original - licensed under the LGPL (see LICENSE).

How to build

To create a jar file, you may start the gradle build process with the included gradle wrapper:

$ ./gradlew jar

The resulting library is then to be found in the following directory:

./build/libs/

You can find an already built Jar file in the releases: https://github.com/nwaldispuehl/java-lame/releases

How to run

After having created a jar file, you certainly can run it as a command line application:

$ cd /build/libs
$ java -jar net.sourceforge.lame-3.98.4.jar

How to run the test

To see the creation of a MP3 file in action one can run the test class LameEncoderTest.java:

$ ./gradlew check

It takes the src/test/resources/test.wav file as input and writes the converted data into build/test.mp3.

How to use Java LAME in a project?

To convert a PCM byte array to an MP3 byte array, you may use Ken Händels LameEncoder which offers the following convenience method for converting chunks of pcm byte array:

LameEncoder#encodeBuffer(final byte[] pcm, final int pcmOffset, final int pcmLength, final byte[] encoded)

A sample of its use can be found in the LameEncoderTest.java: https://github.com/nwaldispuehl/java-lame/blob/master/src/test/java/net/sourceforge/lame/lowlevel/LameEncoderTest.java

Credits

Test sound 'Jingle004' (CC BY-NC 3.0) by 'cydon': https://freesound.org/people/cydon/sounds/133054/