inband DTMF tone generation

[frogersik <frogersik@xxxxxxxxx>]

Hi,

you can make it like this:

in init add create tone generator

ToneGenerator toneGenerator = new ToneGenerator();
toneGenerator.createToneGenerator(8000, 1);
ToneDigitVector digitVector = new ToneDigitVector();

add tone generator to audio port in onCallMediaStateCallback,
   if (toneGenerator != null) {
            toneGenerator.startTransmit(mEndpoint.audDevManager().getPlaybackDevMedia());
        }

and then use this method for dtmf

 public void PlayDTMFDigit(String digit) {
        if (!TextUtils.isEmpty(digit)) {
            try {
                ToneDigit toneDigit = new ToneDigit();
                toneDigit.setDigit(digit.charAt(0));
                toneDigit.setOn_msec((short) 100);
                toneDigit.setOff_msec((short) 200);
                if (toneGenerator.isBusy()) {
                    digitVector.add(toneDigit);
                } else {
                    digitVector.add(toneDigit);
                    toneGenerator.playDigits(digitVector);
                    digitVector.clear();
                }
            } catch (Exception e) {
                Log.e(this, "", e);
            }
        }
    }

Best Regards
Andrzej Grajnert

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