Default encoder for format amr (codec amr_nb) is probably disabled. Please choose an encoder manually.

[HappyWYQ]

how to enable amr encoder when using version 3.5.0?

version 3.5.0 occured this error，but version 3.1.1 is ok.
11:00:34.733 [main] DEBUG ws.schild.jave.ConversionOutputAnalyzer - Input Line (5): <Automatic encoder selection failed for output stream #0:0. Default encoder for format amr (codec amr_nb) is probably disabled. Please choose an encoder manually.>

this is my java code

            //Audio Attributes
            AudioAttributes audio = new AudioAttributes();

// audio.setCodec("libmp3lame");
// audio.setCodec("libopencore_amrnb");
audio.setBitRate(12200);
audio.setChannels(1);
audio.setSamplingRate(8000);

            //Encoding attributes
            EncodingAttributes attrs = new EncodingAttributes();
            attrs.setInputFormat("amr");
            attrs.setOutputFormat("amr");
            attrs.setAudioAttributes(audio);

            //Encode
            String[] audioEncoders = encoder.getAudioEncoders();
            System.out.println("======="+JSONObject.toJSONString(audioEncoders));
            encoder.encode(new MultimediaObject(source), target, attrs);