43 lines
1.4 KiB
Java
43 lines
1.4 KiB
Java
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package org.jcodec.audio;
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import java.nio.FloatBuffer;
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import org.jcodec.common.AudioFormat;
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public class ChannelSplit implements AudioFilter {
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private AudioFormat format;
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public ChannelSplit(AudioFormat format) {
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this.format = format;
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}
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public void filter(FloatBuffer[] _in, long[] inPos, FloatBuffer[] out) {
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if (_in.length != 1)
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throw new IllegalArgumentException("Channel split invoked on more then one input");
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if (out.length != this.format.getChannels())
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throw new IllegalArgumentException("Channel split must be supplied with " + this.format.getChannels() + " output buffers to hold the channels.");
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FloatBuffer in0 = _in[0];
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int outSampleCount = in0.remaining() / out.length;
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for (int i = 0; i < out.length; i++) {
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if (out[i].remaining() < outSampleCount)
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throw new IllegalArgumentException("Supplied buffer for " + i + "th channel doesn't have sufficient space to put the samples ( required: " + outSampleCount + ", actual: " + out[i]
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.remaining() + ")");
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}
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while (in0.remaining() >= this.format.getChannels()) {
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for (int j = 0; j < out.length; j++)
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out[j].put(in0.get());
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}
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}
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public int getDelay() {
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return 0;
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}
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public int getNInputs() {
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return 1;
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}
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public int getNOutputs() {
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return this.format.getChannels();
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}
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}
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