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Android中获取手机视频流数据
来源:互联网   发布日期:2015-09-29 10:19:27   浏览:2637次  

导读:通过MediaRecorder录制。然后绑定一个localsocket,可以获取编码后的视频数据传输;代码如下:package com.pei;import java.io.DataInputStream;import java.io.IOException;import java.io.InputStream;imp......

通过MediaRecorder录制。然后绑定一个localsocket,可以获取编码后的视频数据传输;

代码如下:

package com.pei;

import java.io.DataInputStream;

import java.io.IOException;

import java.io.InputStream;

import android.app.Activity;

import android.os.Bundle;

import android.graphics.PixelFormat;

import android.media.MediaRecorder;

import android.net.LocalServerSocket;

import android.net.LocalSocket;

import android.net.LocalSocketAddress;

import android.view.SurfaceHolder;

import android.view.SurfaceView;

import android.view.View;

import android.view.Window;

import android.view.WindowManager;

/**

* class name:VideoCameraActivity<BR>

* class description:CATCH THE VIDEODATA SEND TO RED5<BR>

* PS: <BR>

*

* @version 1.00 2011/11/05

* @author CODYY)peijiangping

*/

public class VideoCameraActivity extends Activity implements

SurfaceHolder.Callback, MediaRecorder.OnErrorListener,

MediaRecorder.OnInfoListener {

private static final int mVideoEncoder = MediaRecorder.VideoEncoder.H264;

private LocalSocket receiver, sender;

private LocalServerSocket lss;

private MediaRecorder mMediaRecorder = null;

private boolean mMediaRecorderRecording = false;

private SurfaceView mSurfaceView = null;

private SurfaceHolder mSurfaceHolder = null;

private Thread t;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

getWindow().setFormat(PixelFormat.TRANSLUCENT);

requestWindowFeature(Window.FEATURE_NO_TITLE);

getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,

WindowManager.LayoutParams.FLAG_FULLSCREEN);

setContentView(R.layout.main);

mSurfaceView = (SurfaceView) this.findViewById(R.id.surface_camera);

SurfaceHolder holder = mSurfaceView.getHolder();

holder.addCallback(this);

holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);

mSurfaceView.setVisibility(View.VISIBLE);

receiver = new LocalSocket();

try {

lss = new LocalServerSocket("VideoCamera");

receiver.connect(new LocalSocketAddress("VideoCamera"));

receiver.setReceiveBufferSize(500000);

receiver.setSendBufferSize(500000);

sender = lss.accept();

sender.setReceiveBufferSize(500000);

sender.setSendBufferSize(500000);

} catch (IOException e) {

finish();

return;

}

}

@Override

public void onPause() {

super.onPause();

if (mMediaRecorderRecording) {

stopVideoRecording();

try {

lss.close();

receiver.close();

sender.close();

} catch (IOException e) {

e.printStackTrace();

}

}

finish();

}

private void stopVideoRecording() {

System.out.println("stopVideoRecording");

if (mMediaRecorderRecording || mMediaRecorder != null) {

if (t != null)

t.interrupt();

releaseMediaRecorder();

}

}

private void startVideoRecording() {

(t = new Thread() {

public void run() {

int frame_size = 20000;

byte[] buffer = new byte[1024 * 64];

int num, number = 0;

InputStream fis = null;

try {

fis = receiver.getInputStream();

} catch (IOException e1) {

return;

}

number = 0;

releaseMediaRecorder();

while (true) {

System.out.println("ok");

try {

num = fis.read(buffer, number, frame_size);

number += num;

if (num < frame_size) {

System.out.println("recoend break");

break;

}

} catch (IOException e) {

System.out.println("exception break");

break;

}

}

initializeVideo();

number = 0;

Consumer consumer = new Publisher();// Publisher继承了Consumer

Thread consumerThread = new Thread((Runnable) consumer);

consumer.setRecording(true);// 设置线程状态;

consumerThread.start();// 开始发布数据流

DataInputStream dis = new DataInputStream(fis);

try {

dis.read(buffer, 0, 32);

} catch (IOException e1) {

e1.printStackTrace();

}

byte[] aa = { 0x01, 0x42, (byte) 0x80, 0x0A, (byte) 0xFF,

(byte) 0xE1, 0x00, 0x12, 0x67, 0x42, (byte) 0x80, 0x0A,

(byte) 0xE9, 0x02, (byte) 0xC1, 0x29, 0x08, 0x00, 0x00,

0x1F, 0x40, 0x00, 0x04, (byte) 0xE2, 0x00, 0x20, 0x01,

0x00, 0x04, 0x68, (byte) 0xCE, 0x3C, (byte) 0x80 };

consumer.putData(System.currentTimeMillis(), aa, 33);

while (true) {

try {

int h264length = dis.readInt();

number = 0;

while (number < h264length) {

int lost = h264length - number;

num = fis.read(buffer, 0,

frame_size < lost ? frame_size : lost);

number += num;

consumer.putData(System.currentTimeMillis(),

buffer, num);

}

} catch (IOException e) {

break;

}

}

consumer.setRecording(false);// 设置线程状态;

}

}).start();

}

private boolean initializeVideo() {

System.out.println("initializeVideo");

if (mSurfaceHolder == null)

return false;

mMediaRecorderRecording = true;

if (mMediaRecorder == null)

mMediaRecorder = new MediaRecorder();

else

mMediaRecorder.reset();

mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);

mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);

mMediaRecorder.setVideoFrameRate(20);

mMediaRecorder.setVideoSize(352, 288);

mMediaRecorder.setVideoEncoder(mVideoEncoder);

mMediaRecorder.setPreviewDisplay(mSurfaceHolder.getSurface());

mMediaRecorder.setMaxDuration(0);

mMediaRecorder.setMaxFileSize(0);

mMediaRecorder.setOutputFile(sender.getFileDescriptor());

try {

mMediaRecorder.setOnInfoListener(this);

mMediaRecorder.setOnErrorListener(this);

mMediaRecorder.prepare();

mMediaRecorder.start();

} catch (IOException exception) {

releaseMediaRecorder();

finish();

return false;

}

return true;

}

private void releaseMediaRecorder() {

System.out.println("Releasing media recorder.");

if (mMediaRecorder != null) {

if (mMediaRecorderRecording) {

try {

mMediaRecorder.setOnErrorListener(null);

mMediaRecorder.setOnInfoListener(null);

mMediaRecorder.stop();

} catch (RuntimeException e) {

System.out.println("stop fail: " + e.getMessage());

}

mMediaRecorderRecording = false;

}

mMediaRecorder.reset();

mMediaRecorder.release();

mMediaRecorder = null;

}

}

@Override

public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {

System.out.println("surfaceChanged");

mSurfaceHolder = holder;

if (!mMediaRecorderRecording) {

initializeVideo();

startVideoRecording();

}

}

@Override

public void surfaceCreated(SurfaceHolder holder) {

System.out.println("surfaceCreated");

mSurfaceHolder = holder;

}

@Override

public void surfaceDestroyed(SurfaceHolder holder) {

System.out.println("surfaceDestroyed");

mSurfaceView = null;

mSurfaceHolder = null;

mMediaRecorder = null;

if (t != null) {

t.interrupt();

}

}

@Override

public void onInfo(MediaRecorder mr, int what, int extra) {

switch (what) {

case MediaRecorder.MEDIA_RECORDER_INFO_UNKNOWN:

System.out.println("MEDIA_RECORDER_INFO_UNKNOWN");

break;

case MediaRecorder.MEDIA_RECORDER_INFO_MAX_DURATION_REACHED:

System.out.println("MEDIA_RECORDER_INFO_MAX_DURATION_REACHED");

break;

case MediaRecorder.MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED:

System.out.println("MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED");

break;

}

}

@Override

public void onError(MediaRecorder mr, int what, int extra) {

if (what == MediaRecorder.MEDIA_RECORDER_ERROR_UNKNOWN) {

System.out.println("MEDIA_RECORDER_ERROR_UNKNOWN");

finish();

}

}

}

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