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/*
* Copyright 2017 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
package org.webrtc;
import java.nio.ByteBuffer;
/**
* This class wraps a webrtc::I420BufferInterface into a VideoFrame.I420Buffer.
*/
class WrappedNativeI420Buffer implements VideoFrame.I420Buffer {
private final int width;
private final int height;
private final ByteBuffer dataY;
private final int strideY;
private final ByteBuffer dataU;
private final int strideU;
private final ByteBuffer dataV;
private final int strideV;
private final long nativeBuffer;
@CalledByNative
WrappedNativeI420Buffer(int width, int height, ByteBuffer dataY, int strideY, ByteBuffer dataU,
int strideU, ByteBuffer dataV, int strideV, long nativeBuffer) {
this.width = width;
this.height = height;
this.dataY = dataY;
this.strideY = strideY;
this.dataU = dataU;
this.strideU = strideU;
this.dataV = dataV;
this.strideV = strideV;
this.nativeBuffer = nativeBuffer;
retain();
}
@Override
public int getWidth() {
return width;
}
@Override
public int getHeight() {
return height;
}
@Override
public ByteBuffer getDataY() {
// Return a slice to prevent relative reads from changing the position.
return dataY.slice();
}
@Override
public ByteBuffer getDataU() {
// Return a slice to prevent relative reads from changing the position.
return dataU.slice();
}
@Override
public ByteBuffer getDataV() {
// Return a slice to prevent relative reads from changing the position.
return dataV.slice();
}
@Override
public int getStrideY() {
return strideY;
}
@Override
public int getStrideU() {
return strideU;
}
@Override
public int getStrideV() {
return strideV;
}
@Override
public VideoFrame.I420Buffer toI420() {
retain();
return this;
}
@Override
public void retain() {
JniCommon.nativeAddRef(nativeBuffer);
}
@Override
public void release() {
JniCommon.nativeReleaseRef(nativeBuffer);
}
@Override
public VideoFrame.Buffer cropAndScale(
int cropX, int cropY, int cropWidth, int cropHeight, int scaleWidth, int scaleHeight) {
return JavaI420Buffer.cropAndScaleI420(
this, cropX, cropY, cropWidth, cropHeight, scaleWidth, scaleHeight);
}
}