84d8ae5df7
We currently use raw jobject in our code mixed with sporadic ScopedLocalRefFrame. This CL moves every jobject into a scoped object, either local, global, or a parameter. Also, this CL uses the JNI generation script to generate declaration stubs for the Java->C++ functions so that it no longer becomes possible to mistype them without getting compilation errors. TBR=brandt@webrtc.org Bug: webrtc:8278,webrtc:6969 Change-Id: Ic7bac74a89c11180177d65041086d7db1cdfb516 Reviewed-on: https://webrtc-review.googlesource.com/34655 Commit-Queue: Magnus Jedvert <magjed@webrtc.org> Reviewed-by: Sami Kalliomäki <sakal@webrtc.org> Cr-Commit-Position: refs/heads/master@{#21387}
85 lines
2.5 KiB
Java
85 lines
2.5 KiB
Java
/*
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* Copyright 2017 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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package org.webrtc;
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import java.nio.ByteBuffer;
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@JNINamespace("webrtc::jni")
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public class NV12Buffer implements VideoFrame.Buffer {
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private final int width;
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private final int height;
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private final int stride;
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private final int sliceHeight;
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private final ByteBuffer buffer;
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private final Runnable releaseCallback;
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private final Object refCountLock = new Object();
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private int refCount;
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public NV12Buffer(int width, int height, int stride, int sliceHeight, ByteBuffer buffer,
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Runnable releaseCallback) {
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this.width = width;
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this.height = height;
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this.stride = stride;
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this.sliceHeight = sliceHeight;
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this.buffer = buffer;
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this.releaseCallback = releaseCallback;
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refCount = 1;
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}
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@Override
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public int getWidth() {
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return width;
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}
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@Override
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public int getHeight() {
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return height;
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}
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@Override
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public VideoFrame.I420Buffer toI420() {
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return (VideoFrame.I420Buffer) cropAndScale(0, 0, width, height, width, height);
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}
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@Override
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public void retain() {
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synchronized (refCountLock) {
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++refCount;
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}
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}
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@Override
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public void release() {
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synchronized (refCountLock) {
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if (--refCount == 0 && releaseCallback != null) {
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releaseCallback.run();
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}
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}
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}
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@Override
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public VideoFrame.Buffer cropAndScale(
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int cropX, int cropY, int cropWidth, int cropHeight, int scaleWidth, int scaleHeight) {
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JavaI420Buffer newBuffer = JavaI420Buffer.allocate(scaleWidth, scaleHeight);
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nativeCropAndScale(cropX, cropY, cropWidth, cropHeight, scaleWidth, scaleHeight, buffer, width,
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height, stride, sliceHeight, newBuffer.getDataY(), newBuffer.getStrideY(),
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newBuffer.getDataU(), newBuffer.getStrideU(), newBuffer.getDataV(), newBuffer.getStrideV());
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return newBuffer;
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}
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private static native void nativeCropAndScale(int cropX, int cropY, int cropWidth, int cropHeight,
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int scaleWidth, int scaleHeight, ByteBuffer src, int srcWidth, int srcHeight, int srcStride,
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int srcSliceHeight, ByteBuffer dstY, int dstStrideY, ByteBuffer dstU, int dstStrideU,
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ByteBuffer dstV, int dstStrideV);
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}
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