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A totally open, royalty-free, highly versatile audio codec.

There is a newer version: 3.3.5

/*
 * Copyright LWJGL. All rights reserved.
 * License terms: https://www.lwjgl.org/license
 * MACHINE GENERATED FILE, DO NOT EDIT
 */
package org.lwjgl.util.opus;

import org.jspecify.annotations.*;

import org.lwjgl.system.*;

import static org.lwjgl.system.MemoryUtil.*;

/**
 * Instances of this class may be set to the {@link OpusEncCallbacks}.
 * 
 * Type
 * 
 * 
 * int (*{@link #invoke}) (
 *     void *user_data,
 *     unsigned char const *ptr,
 *     opus_int32 len
 * )
 */
public abstract class OPEWriteFunc extends Callback implements OPEWriteFuncI {

    /**
     * Creates a {@code OPEWriteFunc} instance from the specified function pointer.
     *
     * @return the new {@code OPEWriteFunc}
     */
    public static OPEWriteFunc create(long functionPointer) {
        OPEWriteFuncI instance = Callback.get(functionPointer);
        return instance instanceof OPEWriteFunc
            ? (OPEWriteFunc)instance
            : new Container(functionPointer, instance);
    }

    /** Like {@link #create(long) create}, but returns {@code null} if {@code functionPointer} is {@code NULL}. */
    public static @Nullable OPEWriteFunc createSafe(long functionPointer) {
        return functionPointer == NULL ? null : create(functionPointer);
    }

    /** Creates a {@code OPEWriteFunc} instance that delegates to the specified {@code OPEWriteFuncI} instance. */
    public static OPEWriteFunc create(OPEWriteFuncI instance) {
        return instance instanceof OPEWriteFunc
            ? (OPEWriteFunc)instance
            : new Container(instance.address(), instance);
    }

    protected OPEWriteFunc() {
        super(CIF);
    }

    OPEWriteFunc(long functionPointer) {
        super(functionPointer);
    }

    private static final class Container extends OPEWriteFunc {

        private final OPEWriteFuncI delegate;

        Container(long functionPointer, OPEWriteFuncI delegate) {
            super(functionPointer);
            this.delegate = delegate;
        }

        @Override
        public int invoke(long user_data, long ptr, int len) {
            return delegate.invoke(user_data, ptr, len);
        }

    }

}