Java equivalent of C++ sf_readf_double()

Question

I'm manipulating .wav audio files in Android.
So far things are going well (I can record a .wav file from the mic, add echoes etc.), but I'd like to mimic the behaviour of sf_readf_double() and sf_writef_double as per libsndfile in C++ to implement more complex filters.
I have a com.sun.media.sound.WaveFileReader and WaveFileWriter objects and I'm getting at the audio data using

stream = wfr.getAudioInputStream(new File(inputAudioFileName));

which returns an AudioInputStream.
Is it just a case of reading 8 bytes from the stream at a time into a double or is there more to it than that? I'm a little confused as other filters I'm using seem to manipulate shorts rather than doubles.

Please use newlines to make your question clearer. – the_drow Jan 03 '11 at 23:40 — the_drow, Jan 03 '11 at 23:40

score 1 · Accepted Answer · edited May 23 '17 at 10:33

1

Try this:

What should I use in Android when porting C++ code written with libsndfile?

Check this:

android-ndk

edited May 23 '17 at 10:33

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answered Jan 03 '11 at 23:59

Leniel Maccaferri

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Thanks Leniel, but that's my own question. I've since abandoned the JNI route, so that's not much help. – fredley Jan 04 '11 at 00:01
Oh... sorry, should have looked the asker! :) – Leniel Maccaferri Jan 04 '11 at 00:02
Thanks for the ndk link, that looks pretty useful, although I have no experience with the ndk/jni. I'll have a look and see if I can get it working though. – fredley Jan 04 '11 at 23:17

Java equivalent of C++ sf_readf_double()

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