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/* $Id: PjCamera.java 5019 2015-03-23 06:35:45Z nanang $ */
/*
* Copyright (C) 2015 Teluu Inc. (http://www.teluu.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.pjsip;
import android.graphics.SurfaceTexture;
import android.hardware.Camera;
import android.util.Log;
import android.view.SurfaceView;
import android.view.SurfaceHolder;
import java.io.IOException;
public class PjCamera implements Camera.PreviewCallback, SurfaceHolder.Callback
{
private final String TAG = "PjCamera";
public class Param {
public int width;
public int height;
public int format;
public int fps1000;
}
private Camera camera = null;
private boolean isRunning = false;
private int camIdx;
private long userData;
private Param param = null;
private SurfaceView surfaceView = null;
private SurfaceHolder surfaceHolder = null;
private SurfaceTexture surfaceTexture = null;
public PjCamera(int idx, int w, int h, int fmt, int fps,
long userData_, SurfaceView surface)
{
camIdx = idx;
userData = userData_;
param = new Param();
param.width = w;
param.height = h;
param.format = fmt;
param.fps1000 = fps;
SetSurfaceView(surface);
}
public void SetSurfaceView(SurfaceView surface)
{
boolean isCaptureRunning = isRunning;
if (isCaptureRunning)
Stop();
if (surface != null) {
surfaceView = surface;
surfaceHolder = surfaceView.getHolder();
} else {
// Create dummy texture
surfaceHolder = null;
surfaceView = null;
if (surfaceTexture == null) {
surfaceTexture = new SurfaceTexture(10);
}
}
if (isCaptureRunning)
Start();
}
public int SwitchDevice(int idx)
{
boolean isCaptureRunning = isRunning;
int oldIdx = camIdx;
if (isCaptureRunning)
Stop();
camIdx = idx;
if (isCaptureRunning) {
int ret = Start();
if (ret != 0) {
/* Try to revert back */
camIdx = oldIdx;
Start();
return ret;
}
}
return 0;
}
public int Start()
{
try {
camera = Camera.open(camIdx);
} catch (Exception e) {
Log.d("IOException", e.getMessage());
return -10;
}
try {
if (surfaceHolder != null) {
camera.setPreviewDisplay(surfaceHolder);
surfaceHolder.addCallback(this);
} else {
camera.setPreviewTexture(surfaceTexture);
}
} catch (IOException e) {
Log.d("IOException", e.getMessage());
return -20;
}
Camera.Parameters cp = camera.getParameters();
cp.setPreviewSize(param.width, param.height);
cp.setPreviewFormat(param.format);
// Some devices such as Nexus require an exact FPS range from the
// supported FPS ranges, specifying a subset range will raise
// exception.
//cp.setPreviewFpsRange(param.fps1000, param.fps1000);
try {
camera.setParameters(cp);
} catch (RuntimeException e) {
Log.d("RuntimeException", e.getMessage());
return -30;
}
camera.setPreviewCallback(this);
camera.startPreview();
isRunning = true;
return 0;
}
public void Stop()
{
isRunning = false;
if (camera == null)
return;
if (surfaceHolder != null)
surfaceHolder.removeCallback(this);
camera.setPreviewCallback(null);
camera.stopPreview();
camera.release();
camera = null;
}
native void PushFrame(byte[] data, int length, long userData_);
public void onPreviewFrame(byte[] data, Camera camera)
{
if (isRunning) {
PushFrame(data, data.length, userData);
}
}
public void surfaceChanged(SurfaceHolder holder,
int format, int width, int height)
{
Log.d(TAG, "VideoCaptureAndroid::surfaceChanged");
}
public void surfaceCreated(SurfaceHolder holder)
{
Log.d(TAG, "VideoCaptureAndroid::surfaceCreated");
try {
if(camera != null) {
camera.setPreviewDisplay(holder);
}
} catch (IOException e) {
Log.e(TAG, "Failed to set preview surface!", e);
}
}
public void surfaceDestroyed(SurfaceHolder holder)
{
Log.d(TAG, "VideoCaptureAndroid::surfaceDestroyed");
try {
if(camera != null) {
camera.setPreviewDisplay(null);
}
} catch (IOException e) {
Log.e(TAG, "Failed to clear preview surface!", e);
} catch (RuntimeException e) {
Log.w(TAG, "Clear preview surface useless", e);
}
}
}
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