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描述
I try to record pcm stream to m4a file, but it run failed.
try (FFmpegFrameRecorder recorder = new FFmpegFrameRecorder(out, 1)) {
recorder.setFormat("m4a");
recorder.setAudioCodec(avcodec.AV_CODEC_ID_AAC);
recorder.setAudioBitrate(128000);
recorder.setSampleRate(16000);
recorder.start();
exeption: error=avformat_write_header error() error -22: Could not write header to "XXXXXX"