mirror of
https://gitlab.linphone.org/BC/public/linphone-iphone.git
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94 lines
2.7 KiB
Java
94 lines
2.7 KiB
Java
/*
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AndroidCameraRecordImpl.java
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Copyright (C) 2010 Belledonne Communications, Grenoble, France
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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package org.linphone.core;
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import android.hardware.Camera;
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import android.hardware.Camera.PreviewCallback;
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import android.hardware.Camera.Size;
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import android.util.Log;
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/**
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* Record from Android camera.
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*
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* @author Guillaume Beraudo
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*
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*/
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public class AndroidCameraRecordImpl extends AndroidCameraRecord implements PreviewCallback {
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private long filterCtxPtr;
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private double timeElapsedBetweenFrames = 0;
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private long lastFrameTime = 0;
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public AndroidCameraRecordImpl(long filterCtxPtr) {
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super();
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try {
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this.filterCtxPtr = filterCtxPtr;
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setOrStorePreviewCallBack(this);
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} catch (Throwable e) {
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Log.e("Linphone", "Error");
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}
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}
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private native void putImage(long filterCtxPtr, byte[] buffer);
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public void onPreviewFrame(byte[] data, Camera camera) {
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if (data == null) {
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Log.e("Linphone", "onPreviewFrame Called with null buffer");
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return;
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}
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Size s = camera.getParameters().getPreviewSize();
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int expectedBuffLength = s.width * s.height * 3 /2;
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if (expectedBuffLength != data.length) {
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badBufferLengthReceived(data, expectedBuffLength);
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return;
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}
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long curTime = System.currentTimeMillis();
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if (lastFrameTime == 0) {
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lastFrameTime = curTime;
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putImage(filterCtxPtr, data);
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return;
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}
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double currentTimeElapsed = 0.8 * (curTime - lastFrameTime) / 1000 + 0.2 * timeElapsedBetweenFrames;
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if (1 / currentTimeElapsed > fps) {
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// Log.d("Linphone", "Clipping frame " + Math.round(1 / currentTimeElapsed) + " > " + fps);
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addBackCaptureBuffer(data);
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return;
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}
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lastFrameTime = curTime;
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timeElapsedBetweenFrames = currentTimeElapsed;
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// Log.d("onPreviewFrame: ", Integer.toString(data.length));
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putImage(filterCtxPtr, data);
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}
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// Hook
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protected void badBufferLengthReceived(byte[] data, int expectedBuffLength) {
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Log.e("Linphone", "onPreviewFrame called with bad buffer length " + data.length
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+ " whereas expected is " + expectedBuffLength + " don't calling putImage");
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}
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}
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