how can jave merge two mp3 file into one mp3 file

[hengren108]

[a-schild]

Please have a look at this test case

https://github.com/a-schild/jave2/blob/master/jave-core-test/src/test/java/ws/schild/jave/ConcatEncoderTest.java

Should also work with audio files

[hengren108]

Please have a look at this test case

https://github.com/a-schild/jave2/blob/master/jave-core-test/src/test/java/ws/schild/jave/ConcatEncoderTest.java

Should also work with audio files

i run testContactAudio01,but the result is "concat"(1+2=12) not “merge”(1+2=3)

[a-schild]

What do you mean by merge?

[hengren108]

What do you mean by merge?

Merge two mono files into a stereo stream

[a-schild]

This is currently not supported, but we would accept a merge request ;)

From https://trac.ffmpeg.org/wiki/AudioChannelManipulation

ffmpeg -i left.mp3 -i right.mp3 -filter_complex "[0:a][1:a]join=inputs=2:channel_layout=stereo[a]" -map "[a]" output.mp3 or ffmpeg -i left.mp3 -i right.mp3 -filter_complex "[0:a][1:a]amerge=inputs=2[a]" -map "[a]" output.mka

[mressler]

There are plenty of examples of adding Filters in JAVE 3.0 versions: https://github.com/a-schild/jave2/blob/dev-3.0-changes/jave-core-test/src/test/java/ws/schild/jave/filters/VideoFilterTest.java#L163