Index: webrtc/sdk/android/src/java/org/webrtc/NV12Buffer.java |
diff --git a/webrtc/sdk/android/src/java/org/webrtc/NV12Buffer.java b/webrtc/sdk/android/src/java/org/webrtc/NV12Buffer.java |
new file mode 100644 |
index 0000000000000000000000000000000000000000..7575929cba7bf70483b6b47c3d01a369e086ece4 |
--- /dev/null |
+++ b/webrtc/sdk/android/src/java/org/webrtc/NV12Buffer.java |
@@ -0,0 +1,78 @@ |
+/* |
+ * 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; |
+ |
+public class NV12Buffer implements VideoFrame.Buffer { |
+ private final int width; |
+ private final int height; |
+ private final int stride; |
+ private final int sliceHeight; |
+ private final ByteBuffer buffer; |
+ private final Runnable releaseCallback; |
+ |
+ private int refCount; |
+ |
+ public NV12Buffer(int width, int height, int stride, int sliceHeight, ByteBuffer buffer, |
+ Runnable releaseCallback) { |
+ this.width = width; |
+ this.height = height; |
+ this.stride = stride; |
+ this.sliceHeight = sliceHeight; |
+ this.buffer = buffer; |
+ this.releaseCallback = releaseCallback; |
+ |
+ refCount = 1; |
+ } |
+ |
+ @Override |
+ public int getWidth() { |
+ return width; |
+ } |
+ |
+ @Override |
+ public int getHeight() { |
+ return height; |
+ } |
+ |
+ @Override |
+ public VideoFrame.I420Buffer toI420() { |
+ return (VideoFrame.I420Buffer) cropAndScale(0, 0, width, height, width, height); |
+ } |
+ |
+ @Override |
+ public void retain() { |
+ refCount++; |
+ } |
+ |
+ @Override |
+ public void release() { |
+ if (--refCount == 0) { |
+ releaseCallback.run(); |
+ } |
+ } |
+ |
+ @Override |
+ public VideoFrame.Buffer cropAndScale( |
+ int cropX, int cropY, int cropWidth, int cropHeight, int scaleWidth, int scaleHeight) { |
+ I420BufferImpl newBuffer = I420BufferImpl.allocate(scaleWidth, scaleHeight); |
+ nativeCropAndScale(cropX, cropY, cropWidth, cropHeight, scaleWidth, scaleHeight, buffer, width, |
+ height, stride, sliceHeight, newBuffer.getDataY(), newBuffer.getStrideY(), |
+ newBuffer.getDataU(), newBuffer.getStrideU(), newBuffer.getDataV(), newBuffer.getStrideV()); |
+ return newBuffer; |
+ } |
+ |
+ private static native void nativeCropAndScale(int cropX, int cropY, int cropWidth, int cropHeight, |
+ int scaleWidth, int scaleHeight, ByteBuffer src, int srcWidth, int srcHeight, int srcStride, |
+ int srcSliceHeight, ByteBuffer dstY, int dstStrideY, ByteBuffer dstU, int dstStrideU, |
+ ByteBuffer dstV, int dstStrideV); |
+} |