FFmpeg on Android

Question

I have got FFmpeg compiled (libffmpeg.so) on Android. Now I have to build either an application like RockPlayer or use existing Android multimedia framework to invoke FFmpeg

Answer 1

Inspired by many other FFmpeg on Android implementations out there (mainly the guadianproject), I found a solution (with Lame support also).

(lame and FFmpeg: https://github.com/intervigilium/liblame and http://bambuser.com/opensource)

to call FFmpeg:

new Thread(new Runnable() {

    @Override
    public void run() {

        Looper.prepare();

        FfmpegController ffmpeg = null;

        try {
            ffmpeg = new FfmpegController(context);
        } catch (IOException ioe) {
            Log.e(DEBUG_TAG, "Error loading ffmpeg. " + ioe.getMessage());
        }

        ShellDummy shell = new ShellDummy();
        String mp3BitRate = "192";

        try {
            ffmpeg.extractAudio(in, out, audio, mp3BitRate, shell);
        } catch (IOException e) {
            Log.e(DEBUG_TAG, "IOException running ffmpeg" + e.getMessage());
        } catch (InterruptedException e) {
            Log.e(DEBUG_TAG, "InterruptedException running ffmpeg" + e.getMessage());
        }

        Looper.loop();

    }

}).start();

and to handle the console output:

private class ShellDummy implements ShellCallback {

    @Override
    public void shellOut(String shellLine) {
        if (someCondition) {
            doSomething(shellLine);
        }
        Utils.logger("d", shellLine, DEBUG_TAG);
    }

    @Override
    public void processComplete(int exitValue) {
        if (exitValue == 0) {
            // Audio job OK, do your stuff: 

                            // i.e.             
                            // write id3 tags,
                            // calls the media scanner,
                            // etc.
        }
    }

    @Override
    public void processNotStartedCheck(boolean started) {
        if (!started) {
                            // Audio job error, as above.
        }
    }
}