public final class

ByteBufferOutputStream

extends java.io.OutputStream

 java.lang.Object

↳java.io.OutputStream

↳androidx.camera.core.internal.ByteBufferOutputStream

Gradle dependencies

compile group: 'androidx.camera', name: 'camera-core', version: '1.5.0-alpha01'

  • groupId: androidx.camera
  • artifactId: camera-core
  • version: 1.5.0-alpha01

Artifact androidx.camera:camera-core:1.5.0-alpha01 it located at Google repository (https://maven.google.com/)

Overview

A java.io.OutputStream that wraps around a java.nio.ByteBuffer.

Summary

Constructors
publicByteBufferOutputStream(java.nio.ByteBuffer buf)

Methods
public voidwrite(byte[] b[], int off, int len)

public voidwrite(int b)

from java.io.OutputStreamclose, flush, write
from java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructors

public ByteBufferOutputStream(java.nio.ByteBuffer buf)

Methods

public void write(int b)

public void write(byte[] b[], int off, int len)

Source

/*
 * Copyright 2022 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package androidx.camera.core.internal;

import androidx.annotation.NonNull;

import java.io.EOFException;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.ByteBuffer;

/**
 * A {@link OutputStream} that wraps around a {@link ByteBuffer}.
 */
public final class ByteBufferOutputStream extends OutputStream {

    private final ByteBuffer mByteBuffer;

    public ByteBufferOutputStream(@NonNull ByteBuffer buf) {
        mByteBuffer = buf;
    }

    @Override
    public void write(int b) throws IOException {
        if (!mByteBuffer.hasRemaining()) {
            throw new EOFException("Output ByteBuffer has no bytes remaining.");
        }

        mByteBuffer.put((byte) b);
    }

    @Override
    public void write(byte[] b, int off, int len) throws IOException {
        if (b == null) {
            throw new NullPointerException();
        } else if ((off < 0) || (off > b.length) || (len < 0)
                || ((off + len) > b.length) || ((off + len) < 0)) {
            throw new IndexOutOfBoundsException();
        } else if (len == 0) {
            return;
        } else if (mByteBuffer.remaining() < len) {
            throw new EOFException("Output ByteBuffer has insufficient bytes remaining.");
        }

        mByteBuffer.put(b, off, len);
    }
}