[1.7.10] Mono is played in a single speaker

[xunto]

It looks like this mod (at least 1.7.10) is not mantained anymore but maybe somebody can help me with this problem.

I found out that mono sounds are played in single speaker.

In the code it's hardcoded not to use amount of channels defined by given file but always assume there is 2 channels. Here:

OpenFM/src/main/java/pcl/OpenFM/player/AudioPlayer.java

Lines 64 to 68 in f3e6c4c

	private AudioFormat getOutFormat(AudioFormat inFormat) {
	final int ch = inFormat.getChannels();
	final float rate = inFormat.getSampleRate();
	return new AudioFormat(Encoding.PCM_SIGNED, 44100, 16, 2, 4, 44100, false);
	}

That's obviously the reason. That's why (format.getChannels() > 1) ? AL10.AL_FORMAT_STEREO16 : AL10.AL_FORMAT_MONO16 will always return AL10.AL_FORMAT_STEREO16

OpenFM/src/main/java/pcl/OpenFM/player/AudioPlayer.java

Line 132 in f3e6c4c

AL10.alBufferData(this.buffer.get(0), (format.getChannels() > 1) ? AL10.AL_FORMAT_STEREO16 : AL10.AL_FORMAT_MONO16, data, (int)format.getSampleRate());

But I also found out that with AL10.AL_FORMAT_MONO16 sound doesn't appear at all. I'm not really good in OpenAL can sombody help me to fx this?

I used these files while testing:
mono: http://music.konungstvo.ru/fall_of_the_magister.mp3
stereo: http://music.konungstvo.ru/fall_of_the_magister_stereo.mp3