I developed an Android app that reads an .mp3-file, does some manipulation on the PCM data and writes the result to another .mp3-file. So far, I have been using JLayer for decoding and LAME (with NDK) for mp3-encoding. Everything works fine - the only issue is that JLayer is very slow (as discussed here). Thus, I would like to switch to mpg123 that presumably is very fast. For LAME there are nice Android NDK tutorials around, but for mpg123 I have not found anything. The only functionality I need is to decode an mp3-file framewise and obtain the data as PCM. I also checked this, this and this question, but my problem remains unsolved. As I am new to Android NDK I have two questions:
- Does any of you know a step-by-step tutorial showing how to compile mpg123 for Android using the NDK? In particular, I do not know what the Android.mk and the wrapper.c should look like.
- Does any of you have a good alternative? In principle the only thing I am looking for is a fast version of JLayer because the functionality is excellent whereas the performance is poor.
Any help will greatly be appreciated!
